summaryrefslogtreecommitdiff
path: root/src/newgrf.cpp
blob: a37c14b52d1eb812260753238e632c38c8cb4a5c (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
2547
2548
2549
2550
2551
2552
2553
2554
2555
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
2604
2605
2606
2607
2608
2609
2610
2611
2612
2613
2614
2615
2616
2617
2618
2619
2620
2621
2622
2623
2624
2625
2626
2627
2628
2629
2630
2631
2632
2633
2634
2635
2636
2637
2638
2639
2640
2641
2642
2643
2644
2645
2646
2647
2648
2649
2650
2651
2652
2653
2654
2655
2656
2657
2658
2659
2660
2661
2662
2663
2664
2665
2666
2667
2668
2669
2670
2671
2672
2673
2674
2675
2676
2677
2678
2679
2680
2681
2682
2683
2684
2685
2686
2687
2688
2689
2690
2691
2692
2693
2694
2695
2696
2697
2698
2699
2700
2701
2702
2703
2704
2705
2706
2707
2708
2709
2710
2711
2712
2713
2714
2715
2716
2717
2718
2719
2720
2721
2722
2723
2724
2725
2726
2727
2728
2729
2730
2731
2732
2733
2734
2735
2736
2737
2738
2739
2740
2741
2742
2743
2744
2745
2746
2747
2748
2749
2750
2751
2752
2753
2754
2755
2756
2757
2758
2759
2760
2761
2762
2763
2764
2765
2766
2767
2768
2769
2770
2771
2772
2773
2774
2775
2776
2777
2778
2779
2780
2781
2782
2783
2784
2785
2786
2787
2788
2789
2790
2791
2792
2793
2794
2795
2796
2797
2798
2799
2800
2801
2802
2803
2804
2805
2806
2807
2808
2809
2810
2811
2812
2813
2814
2815
2816
2817
2818
2819
2820
2821
2822
2823
2824
2825
2826
2827
2828
2829
2830
2831
2832
2833
2834
2835
2836
2837
2838
2839
2840
2841
2842
2843
2844
2845
2846
2847
2848
2849
2850
2851
2852
2853
2854
2855
2856
2857
2858
2859
2860
2861
2862
2863
2864
2865
2866
2867
2868
2869
2870
2871
2872
2873
2874
2875
2876
2877
2878
2879
2880
2881
2882
2883
2884
2885
2886
2887
2888
2889
2890
2891
2892
2893
2894
2895
2896
2897
2898
2899
2900
2901
2902
2903
2904
2905
2906
2907
2908
2909
2910
2911
2912
2913
2914
2915
2916
2917
2918
2919
2920
2921
2922
2923
2924
2925
2926
2927
2928
2929
2930
2931
2932
2933
2934
2935
2936
2937
2938
2939
2940
2941
2942
2943
2944
2945
2946
2947
2948
2949
2950
2951
2952
2953
2954
2955
2956
2957
2958
2959
2960
2961
2962
2963
2964
2965
2966
2967
2968
2969
2970
2971
2972
2973
2974
2975
2976
2977
2978
2979
2980
2981
2982
2983
2984
2985
2986
2987
2988
2989
2990
2991
2992
2993
2994
2995
2996
2997
2998
2999
3000
3001
3002
3003
3004
3005
3006
3007
3008
3009
3010
3011
3012
3013
3014
3015
3016
3017
3018
3019
3020
3021
3022
3023
3024
3025
3026
3027
3028
3029
3030
3031
3032
3033
3034
3035
3036
3037
3038
3039
3040
3041
3042
3043
3044
3045
3046
3047
3048
3049
3050
3051
3052
3053
3054
3055
3056
3057
3058
3059
3060
3061
3062
3063
3064
3065
3066
3067
3068
3069
3070
3071
3072
3073
3074
3075
3076
3077
3078
3079
3080
3081
3082
3083
3084
3085
3086
3087
3088
3089
3090
3091
3092
3093
3094
3095
3096
3097
3098
3099
3100
3101
3102
3103
3104
3105
3106
3107
3108
3109
3110
3111
3112
3113
3114
3115
3116
3117
3118
3119
3120
3121
3122
3123
3124
3125
3126
3127
3128
3129
3130
3131
3132
3133
3134
3135
3136
3137
3138
3139
3140
3141
3142
3143
3144
3145
3146
3147
3148
3149
3150
3151
3152
3153
3154
3155
3156
3157
3158
3159
3160
3161
3162
3163
3164
3165
3166
3167
3168
3169
3170
3171
3172
3173
3174
3175
3176
3177
3178
3179
3180
3181
3182
3183
3184
3185
3186
3187
3188
3189
3190
3191
3192
3193
3194
3195
3196
3197
3198
3199
3200
3201
3202
3203
3204
3205
3206
3207
3208
3209
3210
3211
3212
3213
3214
3215
3216
3217
3218
3219
3220
3221
3222
3223
3224
3225
3226
3227
3228
3229
3230
3231
3232
3233
3234
3235
3236
3237
3238
3239
3240
3241
3242
3243
3244
3245
3246
3247
3248
3249
3250
3251
3252
3253
3254
3255
3256
3257
3258
3259
3260
3261
3262
3263
3264
3265
3266
3267
3268
3269
3270
3271
3272
3273
3274
3275
3276
3277
3278
3279
3280
3281
3282
3283
3284
3285
3286
3287
3288
3289
3290
3291
3292
3293
3294
3295
3296
3297
3298
3299
3300
3301
3302
3303
3304
3305
3306
3307
3308
3309
3310
3311
3312
3313
3314
3315
3316
3317
3318
3319
3320
3321
3322
3323
3324
3325
3326
3327
3328
3329
3330
3331
3332
3333
3334
3335
3336
3337
3338
3339
3340
3341
3342
3343
3344
3345
3346
3347
3348
3349
3350
3351
3352
3353
3354
3355
3356
3357
3358
3359
3360
3361
3362
3363
3364
3365
3366
3367
3368
3369
3370
3371
3372
3373
3374
3375
3376
3377
3378
3379
3380
3381
3382
3383
3384
3385
3386
3387
3388
3389
3390
3391
3392
3393
3394
3395
3396
3397
3398
3399
3400
3401
3402
3403
3404
3405
3406
3407
3408
3409
3410
3411
3412
3413
3414
3415
3416
3417
3418
3419
3420
3421
3422
3423
3424
3425
3426
3427
3428
3429
3430
3431
3432
3433
3434
3435
3436
3437
3438
3439
3440
3441
3442
3443
3444
3445
3446
3447
3448
3449
3450
3451
3452
3453
3454
3455
3456
3457
3458
3459
3460
3461
3462
3463
3464
3465
3466
3467
3468
3469
3470
3471
3472
3473
3474
3475
3476
3477
3478
3479
3480
3481
3482
3483
3484
3485
3486
3487
3488
3489
3490
3491
3492
3493
3494
3495
3496
3497
3498
3499
3500
3501
3502
3503
3504
3505
3506
3507
3508
3509
3510
3511
3512
3513
3514
3515
3516
3517
3518
3519
3520
3521
3522
3523
3524
3525
3526
3527
3528
3529
3530
3531
3532
3533
3534
3535
3536
3537
3538
3539
3540
3541
3542
3543
3544
3545
3546
3547
3548
3549
3550
3551
3552
3553
3554
3555
3556
3557
3558
3559
3560
3561
3562
3563
3564
3565
3566
3567
3568
3569
3570
3571
3572
3573
3574
3575
3576
3577
3578
3579
3580
3581
3582
3583
3584
3585
3586
3587
3588
3589
3590
3591
3592
3593
3594
3595
3596
3597
3598
3599
3600
3601
3602
3603
3604
3605
3606
3607
3608
3609
3610
3611
3612
3613
3614
3615
3616
3617
3618
3619
3620
3621
3622
3623
3624
3625
3626
3627
3628
3629
3630
3631
3632
3633
3634
3635
3636
3637
3638
3639
3640
3641
3642
3643
3644
3645
3646
3647
3648
3649
3650
3651
3652
3653
3654
3655
3656
3657
3658
3659
3660
3661
3662
3663
3664
3665
3666
3667
3668
3669
3670
3671
3672
3673
3674
3675
3676
3677
3678
3679
3680
3681
3682
3683
3684
3685
3686
3687
3688
3689
3690
3691
3692
3693
3694
3695
3696
3697
3698
3699
3700
3701
3702
3703
3704
3705
3706
3707
3708
3709
3710
3711
3712
3713
3714
3715
3716
3717
3718
3719
3720
3721
3722
3723
3724
3725
3726
3727
3728
3729
3730
3731
3732
3733
3734
3735
3736
3737
3738
3739
3740
3741
3742
3743
3744
3745
3746
3747
3748
3749
3750
3751
3752
3753
3754
3755
3756
3757
3758
3759
3760
3761
3762
3763
3764
3765
3766
3767
3768
3769
3770
3771
3772
3773
3774
3775
3776
3777
3778
3779
3780
3781
3782
3783
3784
3785
3786
3787
3788
3789
3790
3791
3792
3793
3794
3795
3796
3797
3798
3799
3800
3801
3802
3803
3804
3805
3806
3807
3808
3809
3810
3811
3812
3813
3814
3815
3816
3817
3818
3819
3820
3821
3822
3823
3824
3825
3826
3827
3828
3829
3830
3831
3832
3833
3834
3835
3836
3837
3838
3839
3840
3841
3842
3843
3844
3845
3846
3847
3848
3849
3850
3851
3852
3853
3854
3855
3856
3857
3858
3859
3860
3861
3862
3863
3864
3865
3866
3867
3868
3869
3870
3871
3872
3873
3874
3875
3876
3877
3878
3879
3880
3881
3882
3883
3884
3885
3886
3887
3888
3889
3890
3891
3892
3893
3894
3895
3896
3897
3898
3899
3900
3901
3902
3903
3904
3905
3906
3907
3908
3909
3910
3911
3912
3913
3914
3915
3916
3917
3918
3919
3920
3921
3922
3923
3924
3925
3926
3927
3928
3929
3930
3931
3932
3933
3934
3935
3936
3937
3938
3939
3940
3941
3942
3943
3944
3945
3946
3947
3948
3949
3950
3951
3952
3953
3954
3955
3956
3957
3958
3959
3960
3961
3962
3963
3964
3965
3966
3967
3968
3969
3970
3971
3972
3973
3974
3975
3976
3977
3978
3979
3980
3981
3982
3983
3984
3985
3986
3987
3988
3989
3990
3991
3992
3993
3994
3995
3996
3997
3998
3999
4000
4001
4002
4003
4004
4005
4006
4007
4008
4009
4010
4011
4012
4013
4014
4015
4016
4017
4018
4019
4020
4021
4022
4023
4024
4025
4026
4027
4028
4029
4030
4031
4032
4033
4034
4035
4036
4037
4038
4039
4040
4041
4042
4043
4044
4045
4046
4047
4048
4049
4050
4051
4052
4053
4054
4055
4056
4057
4058
4059
4060
4061
4062
4063
4064
4065
4066
4067
4068
4069
4070
4071
4072
4073
4074
4075
4076
4077
4078
4079
4080
4081
4082
4083
4084
4085
4086
4087
4088
4089
4090
4091
4092
4093
4094
4095
4096
4097
4098
4099
4100
4101
4102
4103
4104
4105
4106
4107
4108
4109
4110
4111
4112
4113
4114
4115
4116
4117
4118
4119
4120
4121
4122
4123
4124
4125
4126
4127
4128
4129
4130
4131
4132
4133
4134
4135
4136
4137
4138
4139
4140
4141
4142
4143
4144
4145
4146
4147
4148
4149
4150
4151
4152
4153
4154
4155
4156
4157
4158
4159
4160
4161
4162
4163
4164
4165
4166
4167
4168
4169
4170
4171
4172
4173
4174
4175
4176
4177
4178
4179
4180
4181
4182
4183
4184
4185
4186
4187
4188
4189
4190
4191
4192
4193
4194
4195
4196
4197
4198
4199
4200
4201
4202
4203
4204
4205
4206
4207
4208
4209
4210
4211
4212
4213
4214
4215
4216
4217
4218
4219
4220
4221
4222
4223
4224
4225
4226
4227
4228
4229
4230
4231
4232
4233
4234
4235
4236
4237
4238
4239
4240
4241
4242
4243
4244
4245
4246
4247
4248
4249
4250
4251
4252
4253
4254
4255
4256
4257
4258
4259
4260
4261
4262
4263
4264
4265
4266
4267
4268
4269
4270
4271
4272
4273
4274
4275
4276
4277
4278
4279
4280
4281
4282
4283
4284
4285
4286
4287
4288
4289
4290
4291
4292
4293
4294
4295
4296
4297
4298
4299
4300
4301
4302
4303
4304
4305
4306
4307
4308
4309
4310
4311
4312
4313
4314
4315
4316
4317
4318
4319
4320
4321
4322
4323
4324
4325
4326
4327
4328
4329
4330
4331
4332
4333
4334
4335
4336
4337
4338
4339
4340
4341
4342
4343
4344
4345
4346
4347
4348
4349
4350
4351
4352
4353
4354
4355
4356
4357
4358
4359
4360
4361
4362
4363
4364
4365
4366
4367
4368
4369
4370
4371
4372
4373
4374
4375
4376
4377
4378
4379
4380
4381
4382
4383
4384
4385
4386
4387
4388
4389
4390
4391
4392
4393
4394
4395
4396
4397
4398
4399
4400
4401
4402
4403
4404
4405
4406
4407
4408
4409
4410
4411
4412
4413
4414
4415
4416
4417
4418
4419
4420
4421
4422
4423
4424
4425
4426
4427
4428
4429
4430
4431
4432
4433
4434
4435
4436
4437
4438
4439
4440
4441
4442
4443
4444
4445
4446
4447
4448
4449
4450
4451
4452
4453
4454
4455
4456
4457
4458
4459
4460
4461
4462
4463
4464
4465
4466
4467
4468
4469
4470
4471
4472
4473
4474
4475
4476
4477
4478
4479
4480
4481
4482
4483
4484
4485
4486
4487
4488
4489
4490
4491
4492
4493
4494
4495
4496
4497
4498
4499
4500
4501
4502
4503
4504
4505
4506
4507
4508
4509
4510
4511
4512
4513
4514
4515
4516
4517
4518
4519
4520
4521
4522
4523
4524
4525
4526
4527
4528
4529
4530
4531
4532
4533
4534
4535
4536
4537
4538
4539
4540
4541
4542
4543
4544
4545
4546
4547
4548
4549
4550
4551
4552
4553
4554
4555
4556
4557
4558
4559
4560
4561
4562
4563
4564
4565
4566
4567
4568
4569
4570
4571
4572
4573
4574
4575
4576
4577
4578
4579
4580
4581
4582
4583
4584
4585
4586
4587
4588
4589
4590
4591
4592
4593
4594
4595
4596
4597
4598
4599
4600
4601
4602
4603
4604
4605
4606
4607
4608
4609
4610
4611
4612
4613
4614
4615
4616
4617
4618
4619
4620
4621
4622
4623
4624
4625
4626
4627
4628
4629
4630
4631
4632
4633
4634
4635
4636
4637
4638
4639
4640
4641
4642
4643
4644
4645
4646
4647
4648
4649
4650
4651
4652
4653
4654
4655
4656
4657
4658
4659
4660
4661
4662
4663
4664
4665
4666
4667
4668
4669
4670
4671
4672
4673
4674
4675
4676
4677
4678
4679
4680
4681
4682
4683
4684
4685
4686
4687
4688
4689
4690
4691
4692
4693
4694
4695
4696
4697
4698
4699
4700
4701
4702
4703
4704
4705
4706
4707
4708
4709
4710
4711
4712
4713
4714
4715
4716
4717
4718
4719
4720
4721
4722
4723
4724
4725
4726
4727
4728
4729
4730
4731
4732
4733
4734
4735
4736
4737
4738
4739
4740
4741
4742
4743
4744
4745
4746
4747
4748
4749
4750
4751
4752
4753
4754
4755
4756
4757
4758
4759
4760
4761
4762
4763
4764
4765
4766
4767
4768
4769
4770
4771
4772
4773
4774
4775
4776
4777
4778
4779
4780
4781
4782
4783
4784
4785
4786
4787
4788
4789
4790
4791
4792
4793
4794
4795
4796
4797
4798
4799
4800
4801
4802
4803
4804
4805
4806
4807
4808
4809
4810
4811
4812
4813
4814
4815
4816
4817
4818
4819
4820
4821
4822
4823
4824
4825
4826
4827
4828
4829
4830
4831
4832
4833
4834
4835
4836
4837
4838
4839
4840
4841
4842
4843
4844
4845
4846
4847
4848
4849
4850
4851
4852
4853
4854
4855
4856
4857
4858
4859
4860
4861
4862
4863
4864
4865
4866
4867
4868
4869
4870
4871
4872
4873
4874
4875
4876
4877
4878
4879
4880
4881
4882
4883
4884
4885
4886
4887
4888
4889
4890
4891
4892
4893
4894
4895
4896
4897
4898
4899
4900
4901
4902
4903
4904
4905
4906
4907
4908
4909
4910
4911
4912
4913
4914
4915
4916
4917
4918
4919
4920
4921
4922
4923
4924
4925
4926
4927
4928
4929
4930
4931
4932
4933
4934
4935
4936
4937
4938
4939
4940
4941
4942
4943
4944
4945
4946
4947
4948
4949
4950
4951
4952
4953
4954
4955
4956
4957
4958
4959
4960
4961
4962
4963
4964
4965
4966
4967
4968
4969
4970
4971
4972
4973
4974
4975
4976
4977
4978
4979
4980
4981
4982
4983
4984
4985
4986
4987
4988
4989
4990
4991
4992
4993
4994
4995
4996
4997
4998
4999
5000
5001
5002
5003
5004
5005
5006
5007
5008
5009
5010
5011
5012
5013
5014
5015
5016
5017
5018
5019
5020
5021
5022
5023
5024
5025
5026
5027
5028
5029
5030
5031
5032
5033
5034
5035
5036
5037
5038
5039
5040
5041
5042
5043
5044
5045
5046
5047
5048
5049
5050
5051
5052
5053
5054
5055
5056
5057
5058
5059
5060
5061
5062
5063
5064
5065
5066
5067
5068
5069
5070
5071
5072
5073
5074
5075
5076
5077
5078
5079
5080
5081
5082
5083
5084
5085
5086
5087
5088
5089
5090
5091
5092
5093
5094
5095
5096
5097
5098
5099
5100
5101
5102
5103
5104
5105
5106
5107
5108
5109
5110
5111
5112
5113
5114
5115
5116
5117
5118
5119
5120
5121
5122
5123
5124
5125
5126
5127
5128
5129
5130
5131
5132
5133
5134
5135
5136
5137
5138
5139
5140
5141
5142
5143
5144
5145
5146
5147
5148
5149
5150
5151
5152
5153
5154
5155
5156
5157
5158
5159
5160
5161
5162
5163
5164
5165
5166
5167
5168
5169
5170
5171
5172
5173
5174
5175
5176
5177
5178
5179
5180
5181
5182
5183
5184
5185
5186
5187
5188
5189
5190
5191
5192
5193
5194
5195
5196
5197
5198
5199
5200
5201
5202
5203
5204
5205
5206
5207
5208
5209
5210
5211
5212
5213
5214
5215
5216
5217
5218
5219
5220
5221
5222
5223
5224
5225
5226
5227
5228
5229
5230
5231
5232
5233
5234
5235
5236
5237
5238
5239
5240
5241
5242
5243
5244
5245
5246
5247
5248
5249
5250
5251
5252
5253
5254
5255
5256
5257
5258
5259
5260
5261
5262
5263
5264
5265
5266
5267
5268
5269
5270
5271
5272
5273
5274
5275
5276
5277
5278
5279
5280
5281
5282
5283
5284
5285
5286
5287
5288
5289
5290
5291
5292
5293
5294
5295
5296
5297
5298
5299
5300
5301
5302
5303
5304
5305
5306
5307
5308
5309
5310
5311
5312
5313
5314
5315
5316
5317
5318
5319
5320
5321
5322
5323
5324
5325
5326
5327
5328
5329
5330
5331
5332
5333
5334
5335
5336
5337
5338
5339
5340
5341
5342
5343
5344
5345
5346
5347
5348
5349
5350
5351
5352
5353
5354
5355
5356
5357
5358
5359
5360
5361
5362
5363
5364
5365
5366
5367
5368
5369
5370
5371
5372
5373
5374
5375
5376
5377
5378
5379
5380
5381
5382
5383
5384
5385
5386
5387
5388
5389
5390
5391
5392
5393
5394
5395
5396
5397
5398
5399
5400
5401
5402
5403
5404
5405
5406
5407
5408
5409
5410
5411
5412
5413
5414
5415
5416
5417
5418
5419
5420
5421
5422
5423
5424
5425
5426
5427
5428
5429
5430
5431
5432
5433
5434
5435
5436
5437
5438
5439
5440
5441
5442
5443
5444
5445
5446
5447
5448
5449
5450
5451
5452
5453
5454
5455
5456
5457
5458
5459
5460
5461
5462
5463
5464
5465
5466
5467
5468
5469
5470
5471
5472
5473
5474
5475
5476
5477
5478
5479
5480
5481
5482
5483
5484
5485
5486
5487
5488
5489
5490
5491
5492
5493
5494
5495
5496
5497
5498
5499
5500
5501
5502
5503
5504
5505
5506
5507
5508
5509
5510
5511
5512
5513
5514
5515
5516
5517
5518
5519
5520
5521
5522
5523
5524
5525
5526
5527
5528
5529
5530
5531
5532
5533
5534
5535
5536
5537
5538
5539
5540
5541
5542
5543
5544
5545
5546
5547
5548
5549
5550
5551
5552
5553
5554
5555
5556
5557
5558
5559
5560
5561
5562
5563
5564
5565
5566
5567
5568
5569
5570
5571
5572
5573
5574
5575
5576
5577
5578
5579
5580
5581
5582
5583
5584
5585
5586
5587
5588
5589
5590
5591
5592
5593
5594
5595
5596
5597
5598
5599
5600
5601
5602
5603
5604
5605
5606
5607
5608
5609
5610
5611
5612
5613
5614
5615
5616
5617
5618
5619
5620
5621
5622
5623
5624
5625
5626
5627
5628
5629
5630
5631
5632
5633
5634
5635
5636
5637
5638
5639
5640
5641
5642
5643
5644
5645
5646
5647
5648
5649
5650
5651
5652
5653
5654
5655
5656
5657
5658
5659
5660
5661
5662
5663
5664
5665
5666
5667
5668
5669
5670
5671
5672
5673
5674
5675
5676
5677
5678
5679
5680
5681
5682
5683
5684
5685
5686
5687
5688
5689
5690
5691
5692
5693
5694
5695
5696
5697
5698
5699
5700
5701
5702
5703
5704
5705
5706
5707
5708
5709
5710
5711
5712
5713
5714
5715
5716
5717
5718
5719
5720
5721
5722
5723
5724
5725
5726
5727
5728
5729
5730
5731
5732
5733
5734
5735
5736
5737
5738
5739
5740
5741
5742
5743
5744
5745
5746
5747
5748
5749
5750
5751
5752
5753
5754
5755
5756
5757
5758
5759
5760
5761
5762
5763
5764
5765
5766
5767
5768
5769
5770
5771
5772
5773
5774
5775
5776
5777
5778
5779
5780
5781
5782
5783
5784
5785
5786
5787
5788
5789
5790
5791
5792
5793
5794
5795
5796
5797
5798
5799
5800
5801
5802
5803
5804
5805
5806
5807
5808
5809
5810
5811
5812
5813
5814
5815
5816
5817
5818
5819
5820
5821
5822
5823
5824
5825
5826
5827
5828
5829
5830
5831
5832
5833
5834
5835
5836
5837
5838
5839
5840
5841
5842
5843
5844
5845
5846
5847
5848
5849
5850
5851
5852
5853
5854
5855
5856
5857
5858
5859
5860
5861
5862
5863
5864
5865
5866
5867
5868
5869
5870
5871
5872
5873
5874
5875
5876
5877
5878
5879
5880
5881
5882
5883
5884
5885
5886
5887
5888
5889
5890
5891
5892
5893
5894
5895
5896
5897
5898
5899
5900
5901
5902
5903
5904
5905
5906
5907
5908
5909
5910
5911
5912
5913
5914
5915
5916
5917
5918
5919
5920
5921
5922
5923
5924
5925
5926
5927
5928
5929
5930
5931
5932
5933
5934
5935
5936
5937
5938
5939
5940
5941
5942
5943
5944
5945
5946
5947
5948
5949
5950
5951
5952
5953
5954
5955
5956
5957
5958
5959
5960
5961
5962
5963
5964
5965
5966
5967
5968
5969
5970
5971
5972
5973
5974
5975
5976
5977
5978
5979
5980
5981
5982
5983
5984
5985
5986
5987
5988
5989
5990
5991
5992
5993
5994
5995
5996
5997
5998
5999
6000
6001
6002
6003
6004
6005
6006
6007
6008
6009
6010
6011
6012
6013
6014
6015
6016
6017
6018
6019
6020
6021
6022
6023
6024
6025
6026
6027
6028
6029
6030
6031
6032
6033
6034
6035
6036
6037
6038
6039
6040
6041
6042
6043
6044
6045
6046
6047
6048
6049
6050
6051
6052
6053
6054
6055
6056
6057
6058
6059
6060
6061
6062
6063
6064
6065
6066
6067
6068
6069
6070
6071
6072
6073
6074
6075
6076
6077
6078
6079
6080
6081
6082
6083
6084
6085
6086
6087
6088
6089
6090
6091
6092
6093
6094
6095
6096
6097
6098
6099
6100
6101
6102
6103
6104
6105
6106
6107
6108
6109
6110
6111
6112
6113
6114
6115
6116
6117
6118
6119
6120
6121
6122
6123
6124
6125
6126
6127
6128
6129
6130
6131
6132
6133
6134
6135
6136
6137
6138
6139
6140
6141
6142
6143
6144
6145
6146
6147
6148
6149
6150
6151
6152
6153
6154
6155
6156
6157
6158
6159
6160
6161
6162
6163
6164
6165
6166
6167
6168
6169
6170
6171
6172
6173
6174
6175
6176
6177
6178
6179
6180
6181
6182
6183
6184
6185
6186
6187
6188
6189
6190
6191
6192
6193
6194
6195
6196
6197
6198
6199
6200
6201
6202
6203
6204
6205
6206
6207
6208
6209
6210
6211
6212
6213
6214
6215
6216
6217
6218
6219
6220
6221
6222
6223
6224
6225
6226
6227
6228
6229
6230
6231
6232
6233
6234
6235
6236
6237
6238
6239
6240
6241
6242
6243
6244
6245
6246
6247
6248
6249
6250
6251
6252
6253
6254
6255
6256
6257
6258
6259
6260
6261
6262
6263
6264
6265
6266
6267
6268
6269
6270
6271
6272
6273
6274
6275
6276
6277
6278
6279
6280
6281
6282
6283
6284
6285
6286
6287
6288
6289
6290
6291
6292
6293
6294
6295
6296
6297
6298
6299
6300
6301
6302
6303
6304
6305
6306
6307
6308
6309
6310
6311
6312
6313
6314
6315
6316
6317
6318
6319
6320
6321
6322
6323
6324
6325
6326
6327
6328
6329
6330
6331
6332
6333
6334
6335
6336
6337
6338
6339
6340
6341
6342
6343
6344
6345
6346
6347
6348
6349
6350
6351
6352
6353
6354
6355
6356
6357
6358
6359
6360
6361
6362
6363
6364
6365
6366
6367
6368
6369
6370
6371
6372
6373
6374
6375
6376
6377
6378
6379
6380
6381
6382
6383
6384
6385
6386
6387
6388
6389
6390
6391
6392
6393
6394
6395
6396
6397
6398
6399
6400
6401
6402
6403
6404
6405
6406
6407
6408
6409
6410
6411
6412
6413
6414
6415
6416
6417
6418
6419
6420
6421
6422
6423
6424
6425
6426
6427
6428
6429
6430
6431
6432
6433
6434
6435
6436
6437
6438
6439
6440
6441
6442
6443
6444
6445
6446
6447
6448
6449
6450
6451
6452
6453
6454
6455
6456
6457
6458
6459
6460
6461
6462
6463
6464
6465
6466
6467
6468
6469
6470
6471
6472
6473
6474
6475
6476
6477
6478
6479
6480
6481
6482
6483
6484
6485
6486
6487
6488
6489
6490
6491
6492
6493
6494
6495
6496
6497
6498
6499
6500
6501
6502
6503
6504
6505
6506
6507
6508
6509
6510
6511
6512
6513
6514
6515
6516
6517
6518
6519
6520
6521
6522
6523
6524
6525
6526
6527
6528
6529
6530
6531
6532
6533
6534
6535
6536
6537
6538
6539
6540
6541
6542
6543
6544
6545
6546
6547
6548
6549
6550
6551
6552
6553
6554
6555
6556
6557
6558
6559
6560
6561
6562
6563
6564
6565
6566
6567
6568
6569
6570
6571
6572
6573
6574
6575
6576
6577
6578
6579
6580
6581
6582
6583
6584
6585
6586
6587
6588
6589
6590
6591
6592
6593
6594
6595
6596
6597
6598
6599
6600
6601
6602
6603
6604
6605
6606
6607
6608
6609
6610
6611
6612
6613
6614
6615
6616
6617
6618
6619
6620
6621
6622
6623
6624
6625
6626
6627
6628
6629
6630
6631
6632
6633
6634
6635
6636
6637
6638
6639
6640
6641
6642
6643
6644
6645
6646
6647
6648
6649
6650
6651
6652
6653
6654
6655
6656
6657
6658
6659
6660
6661
6662
6663
6664
6665
6666
6667
6668
6669
6670
6671
6672
6673
6674
6675
6676
6677
6678
6679
6680
6681
6682
6683
6684
6685
6686
6687
6688
6689
6690
6691
6692
6693
6694
6695
6696
6697
6698
6699
6700
6701
6702
6703
6704
6705
6706
6707
6708
6709
6710
6711
6712
6713
6714
6715
6716
6717
6718
6719
6720
6721
6722
6723
6724
6725
6726
6727
6728
6729
6730
6731
6732
6733
6734
6735
6736
6737
6738
6739
6740
6741
6742
6743
6744
6745
6746
6747
6748
6749
6750
6751
6752
6753
6754
6755
6756
6757
6758
6759
6760
6761
6762
6763
6764
6765
6766
6767
6768
6769
6770
6771
6772
6773
6774
6775
6776
6777
6778
6779
6780
6781
6782
6783
6784
6785
6786
6787
6788
6789
6790
6791
6792
6793
6794
6795
6796
6797
6798
6799
6800
6801
6802
6803
6804
6805
6806
6807
6808
6809
6810
6811
6812
6813
6814
6815
6816
6817
6818
6819
6820
6821
6822
6823
6824
6825
6826
6827
6828
6829
6830
6831
6832
6833
6834
6835
6836
6837
6838
6839
6840
6841
6842
6843
6844
6845
6846
6847
6848
6849
6850
6851
6852
6853
6854
6855
6856
6857
6858
6859
6860
6861
6862
6863
6864
6865
6866
6867
6868
6869
6870
6871
6872
6873
6874
6875
6876
6877
6878
6879
6880
6881
6882
6883
6884
6885
6886
6887
6888
6889
6890
6891
6892
6893
6894
6895
6896
6897
6898
6899
6900
6901
6902
6903
6904
6905
6906
6907
6908
6909
6910
6911
6912
6913
6914
6915
6916
6917
6918
6919
6920
6921
6922
6923
6924
6925
6926
6927
6928
6929
6930
6931
6932
6933
6934
6935
6936
6937
6938
6939
6940
6941
6942
6943
6944
6945
6946
6947
6948
6949
6950
6951
6952
6953
6954
6955
6956
6957
6958
6959
6960
6961
6962
6963
6964
6965
6966
6967
6968
6969
6970
6971
6972
6973
6974
6975
6976
6977
6978
6979
6980
6981
6982
6983
6984
6985
6986
6987
6988
6989
6990
6991
6992
6993
6994
6995
6996
6997
6998
6999
7000
7001
7002
7003
7004
7005
7006
7007
7008
7009
7010
7011
7012
7013
7014
7015
7016
7017
7018
7019
7020
7021
7022
7023
7024
7025
7026
7027
7028
7029
7030
7031
7032
7033
7034
7035
7036
7037
7038
7039
7040
7041
7042
7043
7044
7045
7046
7047
7048
7049
7050
7051
7052
7053
7054
7055
7056
7057
7058
7059
7060
7061
7062
7063
7064
7065
7066
7067
7068
7069
7070
7071
7072
7073
7074
7075
7076
7077
7078
7079
7080
7081
7082
7083
7084
7085
7086
7087
7088
7089
7090
7091
7092
7093
7094
7095
7096
7097
7098
7099
7100
7101
7102
7103
7104
7105
7106
7107
7108
7109
7110
7111
7112
7113
7114
7115
7116
7117
7118
7119
7120
7121
7122
7123
7124
7125
7126
7127
7128
7129
7130
7131
7132
7133
7134
7135
7136
7137
7138
7139
7140
7141
7142
7143
7144
7145
7146
7147
7148
7149
7150
7151
7152
7153
7154
7155
7156
7157
7158
7159
7160
7161
7162
7163
7164
7165
7166
7167
7168
7169
7170
7171
7172
7173
7174
7175
7176
7177
7178
7179
7180
7181
7182
7183
7184
7185
7186
7187
7188
7189
7190
7191
7192
7193
7194
7195
7196
7197
7198
7199
7200
7201
7202
7203
7204
7205
7206
7207
7208
7209
7210
7211
7212
7213
7214
7215
7216
7217
7218
7219
7220
7221
7222
7223
7224
7225
7226
7227
7228
7229
7230
7231
7232
7233
7234
7235
7236
7237
7238
7239
7240
7241
7242
7243
7244
7245
7246
7247
7248
7249
7250
7251
7252
7253
7254
7255
7256
7257
7258
7259
7260
7261
7262
7263
7264
7265
7266
7267
7268
7269
7270
7271
7272
7273
7274
7275
7276
7277
7278
7279
7280
7281
7282
7283
7284
7285
7286
7287
7288
7289
7290
7291
7292
7293
7294
7295
7296
7297
7298
7299
7300
7301
7302
7303
7304
7305
7306
7307
7308
7309
7310
7311
7312
7313
7314
7315
7316
7317
7318
7319
7320
7321
7322
7323
7324
7325
7326
7327
7328
7329
7330
7331
7332
7333
7334
7335
7336
7337
7338
7339
7340
7341
7342
7343
7344
7345
7346
7347
7348
7349
7350
7351
7352
7353
7354
7355
7356
7357
7358
7359
7360
7361
7362
7363
7364
7365
7366
7367
7368
7369
7370
7371
7372
7373
7374
7375
7376
7377
7378
7379
7380
7381
7382
7383
7384
7385
7386
7387
7388
7389
7390
7391
7392
7393
7394
7395
7396
7397
7398
7399
7400
7401
7402
7403
7404
7405
7406
7407
7408
7409
7410
7411
7412
7413
7414
7415
7416
7417
7418
7419
7420
7421
7422
7423
7424
7425
7426
7427
7428
7429
7430
7431
7432
7433
7434
7435
7436
7437
7438
7439
7440
7441
7442
7443
7444
7445
7446
7447
7448
7449
7450
7451
7452
7453
7454
7455
7456
7457
7458
7459
7460
7461
7462
7463
7464
7465
7466
7467
7468
7469
7470
7471
7472
7473
7474
7475
7476
7477
7478
7479
7480
7481
7482
7483
7484
7485
7486
7487
7488
7489
7490
7491
7492
7493
7494
7495
7496
7497
7498
7499
7500
7501
7502
7503
7504
7505
7506
7507
7508
7509
7510
7511
7512
7513
7514
7515
7516
7517
7518
7519
7520
7521
7522
7523
7524
7525
7526
7527
7528
7529
7530
7531
7532
7533
7534
7535
7536
7537
7538
7539
7540
7541
7542
7543
7544
7545
7546
7547
7548
7549
7550
7551
7552
7553
7554
7555
7556
7557
7558
7559
7560
7561
7562
7563
7564
7565
7566
7567
7568
7569
7570
7571
7572
7573
7574
7575
7576
7577
7578
7579
7580
7581
7582
7583
7584
7585
7586
7587
7588
7589
7590
7591
7592
7593
7594
7595
7596
7597
7598
7599
7600
7601
7602
7603
7604
7605
7606
7607
7608
7609
7610
7611
7612
7613
7614
7615
7616
7617
7618
7619
7620
7621
7622
7623
7624
7625
7626
7627
7628
7629
7630
7631
7632
7633
7634
7635
7636
7637
7638
7639
7640
7641
7642
7643
7644
7645
7646
7647
7648
7649
7650
7651
7652
7653
7654
7655
7656
7657
7658
7659
7660
7661
7662
7663
7664
7665
7666
7667
7668
7669
7670
7671
7672
7673
7674
7675
7676
7677
7678
7679
7680
7681
7682
7683
7684
7685
7686
7687
7688
7689
7690
7691
7692
7693
7694
7695
7696
7697
7698
7699
7700
7701
7702
7703
7704
7705
7706
7707
7708
7709
7710
7711
7712
7713
7714
7715
7716
7717
7718
7719
7720
7721
7722
7723
7724
7725
7726
7727
7728
7729
7730
7731
7732
7733
7734
7735
7736
7737
7738
7739
7740
7741
7742
7743
7744
7745
7746
7747
7748
7749
7750
7751
7752
7753
7754
7755
7756
7757
7758
7759
7760
7761
7762
7763
7764
7765
7766
7767
7768
7769
7770
7771
7772
7773
7774
7775
7776
7777
7778
7779
7780
7781
7782
7783
7784
7785
7786
7787
7788
7789
7790
7791
7792
7793
7794
7795
7796
7797
7798
7799
7800
7801
7802
7803
7804
7805
7806
7807
7808
7809
7810
7811
7812
7813
7814
7815
7816
7817
7818
7819
7820
7821
7822
7823
7824
7825
7826
7827
7828
7829
7830
7831
7832
7833
7834
7835
7836
7837
7838
7839
7840
7841
7842
7843
7844
7845
7846
7847
7848
7849
7850
7851
7852
7853
7854
7855
7856
7857
7858
7859
7860
7861
7862
7863
7864
7865
7866
7867
7868
7869
7870
7871
7872
7873
7874
7875
7876
7877
7878
7879
7880
7881
7882
7883
7884
7885
7886
7887
7888
7889
7890
7891
7892
7893
7894
7895
7896
7897
7898
7899
7900
7901
7902
7903
7904
7905
7906
7907
7908
7909
7910
7911
7912
7913
7914
7915
7916
7917
7918
7919
7920
7921
7922
7923
7924
7925
7926
7927
7928
7929
7930
7931
7932
7933
7934
7935
7936
7937
7938
7939
7940
7941
7942
7943
7944
7945
7946
7947
7948
7949
7950
7951
7952
7953
7954
7955
7956
7957
7958
7959
7960
7961
7962
7963
7964
7965
7966
7967
7968
7969
7970
7971
7972
7973
7974
7975
7976
7977
7978
7979
7980
7981
7982
7983
7984
7985
7986
7987
7988
7989
7990
7991
7992
7993
7994
7995
7996
7997
7998
7999
8000
8001
8002
8003
8004
8005
8006
8007
8008
8009
8010
8011
8012
8013
8014
8015
8016
8017
8018
8019
8020
8021
8022
8023
8024
8025
8026
8027
8028
8029
8030
8031
8032
8033
8034
8035
8036
8037
8038
8039
8040
8041
8042
8043
8044
8045
8046
8047
8048
8049
8050
8051
8052
8053
8054
8055
8056
8057
8058
8059
8060
8061
8062
8063
8064
8065
8066
8067
8068
8069
8070
8071
8072
8073
8074
8075
8076
8077
8078
8079
8080
8081
8082
8083
8084
8085
8086
8087
8088
8089
8090
8091
8092
8093
8094
8095
8096
8097
8098
8099
8100
8101
8102
8103
8104
8105
8106
8107
8108
8109
8110
8111
8112
8113
8114
8115
8116
8117
8118
8119
8120
8121
8122
8123
8124
8125
8126
8127
8128
8129
8130
8131
8132
8133
8134
8135
8136
8137
8138
8139
8140
8141
8142
8143
8144
8145
8146
8147
8148
8149
8150
8151
8152
8153
8154
8155
8156
8157
8158
8159
8160
8161
8162
8163
8164
8165
8166
8167
8168
8169
8170
8171
8172
8173
8174
8175
8176
8177
8178
8179
8180
8181
8182
8183
8184
8185
8186
8187
8188
8189
8190
8191
8192
8193
8194
8195
8196
8197
8198
8199
8200
8201
8202
8203
8204
8205
8206
8207
8208
8209
8210
8211
8212
8213
8214
8215
8216
8217
8218
8219
8220
8221
8222
8223
8224
8225
8226
8227
8228
8229
8230
8231
8232
8233
8234
8235
8236
8237
8238
8239
8240
8241
8242
8243
8244
8245
8246
8247
8248
8249
8250
8251
8252
8253
8254
8255
8256
8257
8258
8259
8260
8261
8262
8263
8264
8265
8266
8267
8268
8269
8270
8271
8272
8273
8274
8275
8276
8277
8278
8279
8280
8281
8282
8283
8284
8285
8286
8287
8288
8289
8290
8291
8292
8293
8294
8295
8296
8297
8298
8299
8300
8301
8302
8303
8304
8305
8306
8307
8308
8309
8310
8311
8312
8313
8314
8315
8316
8317
8318
8319
8320
8321
8322
8323
8324
8325
8326
8327
8328
8329
8330
8331
8332
8333
8334
8335
8336
8337
8338
8339
8340
8341
8342
8343
8344
8345
8346
8347
8348
8349
8350
8351
8352
8353
8354
8355
8356
8357
8358
8359
8360
8361
8362
8363
8364
8365
8366
8367
8368
8369
8370
8371
8372
8373
8374
8375
8376
8377
8378
8379
8380
8381
8382
8383
8384
8385
8386
8387
8388
8389
8390
8391
8392
8393
8394
8395
8396
8397
8398
8399
8400
8401
8402
8403
8404
8405
8406
8407
8408
8409
8410
8411
8412
8413
8414
8415
8416
8417
8418
8419
8420
8421
8422
8423
8424
8425
8426
8427
8428
8429
8430
8431
8432
8433
8434
8435
8436
8437
8438
8439
8440
8441
8442
8443
8444
8445
8446
8447
8448
8449
8450
8451
8452
8453
8454
8455
8456
8457
8458
8459
8460
8461
8462
8463
8464
8465
8466
8467
8468
8469
8470
8471
8472
8473
8474
8475
8476
8477
8478
8479
8480
8481
8482
8483
8484
8485
8486
8487
8488
8489
8490
8491
8492
8493
8494
8495
8496
8497
8498
8499
8500
8501
8502
8503
8504
8505
8506
8507
8508
8509
8510
8511
8512
8513
8514
8515
8516
8517
8518
8519
8520
8521
8522
8523
8524
8525
8526
8527
8528
8529
8530
8531
8532
8533
8534
8535
8536
8537
8538
8539
8540
8541
8542
8543
8544
8545
8546
8547
8548
8549
8550
8551
8552
8553
8554
8555
8556
8557
8558
8559
8560
8561
8562
8563
8564
8565
8566
8567
8568
8569
8570
8571
8572
8573
8574
8575
8576
8577
8578
8579
8580
8581
8582
8583
8584
8585
8586
8587
8588
8589
8590
8591
8592
8593
8594
8595
8596
8597
8598
8599
8600
8601
8602
8603
8604
8605
8606
8607
8608
8609
8610
8611
8612
8613
8614
8615
8616
8617
8618
8619
8620
8621
8622
8623
8624
8625
8626
8627
8628
8629
8630
8631
8632
8633
8634
8635
8636
8637
8638
8639
8640
8641
8642
8643
8644
8645
8646
8647
8648
8649
8650
8651
8652
8653
8654
8655
8656
8657
8658
8659
8660
8661
8662
8663
8664
8665
8666
8667
8668
8669
8670
8671
8672
8673
8674
8675
8676
8677
8678
8679
8680
8681
8682
8683
8684
8685
8686
8687
8688
8689
8690
8691
8692
8693
8694
8695
8696
8697
8698
8699
8700
8701
8702
8703
8704
8705
8706
8707
8708
8709
8710
8711
8712
8713
8714
8715
8716
8717
8718
8719
8720
8721
8722
8723
8724
8725
8726
8727
8728
8729
8730
8731
8732
8733
8734
8735
8736
8737
8738
8739
8740
8741
8742
8743
8744
8745
8746
8747
8748
8749
8750
8751
8752
8753
8754
8755
8756
8757
8758
8759
8760
8761
8762
8763
8764
8765
8766
8767
8768
8769
8770
8771
8772
8773
8774
8775
8776
8777
8778
8779
8780
8781
8782
8783
8784
8785
8786
8787
8788
8789
8790
8791
8792
8793
8794
8795
8796
8797
8798
8799
8800
8801
8802
8803
8804
8805
8806
8807
8808
8809
8810
8811
8812
8813
8814
8815
8816
8817
8818
8819
8820
8821
8822
8823
8824
8825
8826
8827
8828
8829
8830
8831
8832
8833
8834
8835
8836
8837
8838
8839
8840
8841
8842
8843
8844
8845
8846
8847
8848
8849
8850
8851
8852
8853
8854
8855
8856
8857
8858
8859
8860
8861
8862
8863
8864
8865
8866
8867
8868
8869
8870
8871
8872
8873
8874
8875
8876
8877
8878
8879
8880
8881
8882
8883
8884
8885
8886
8887
8888
8889
8890
8891
8892
8893
8894
8895
8896
8897
8898
8899
8900
8901
8902
8903
8904
8905
8906
8907
8908
8909
8910
8911
8912
8913
8914
8915
8916
8917
8918
8919
8920
8921
8922
8923
8924
8925
8926
8927
8928
8929
8930
8931
8932
8933
8934
8935
8936
8937
8938
8939
8940
8941
8942
8943
8944
8945
8946
8947
8948
8949
8950
8951
8952
8953
8954
8955
8956
8957
8958
8959
8960
8961
8962
8963
8964
8965
8966
8967
8968
8969
8970
8971
8972
8973
8974
8975
8976
8977
8978
8979
8980
8981
8982
8983
8984
8985
8986
8987
8988
8989
8990
8991
8992
8993
8994
8995
8996
8997
8998
8999
9000
9001
9002
9003
9004
9005
9006
9007
9008
9009
9010
9011
9012
9013
9014
9015
9016
9017
9018
9019
9020
9021
9022
9023
9024
9025
9026
9027
9028
9029
9030
9031
9032
9033
9034
9035
9036
9037
9038
9039
9040
9041
9042
9043
9044
9045
9046
9047
9048
9049
9050
9051
9052
9053
9054
9055
9056
9057
9058
9059
9060
9061
9062
9063
9064
9065
9066
9067
9068
9069
9070
9071
9072
9073
9074
/* $Id$ */

/*
 * This file is part of OpenTTD.
 * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
 * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
 */

/** @file newgrf.cpp Base of all NewGRF support. */

#include "stdafx.h"

#include <stdarg.h>

#include "debug.h"
#include "fileio_func.h"
#include "engine_func.h"
#include "engine_base.h"
#include "bridge.h"
#include "town.h"
#include "newgrf_engine.h"
#include "newgrf_text.h"
#include "fontcache.h"
#include "currency.h"
#include "landscape.h"
#include "newgrf.h"
#include "newgrf_cargo.h"
#include "newgrf_house.h"
#include "newgrf_sound.h"
#include "newgrf_station.h"
#include "industrytype.h"
#include "newgrf_canal.h"
#include "newgrf_townname.h"
#include "newgrf_industries.h"
#include "newgrf_airporttiles.h"
#include "newgrf_airport.h"
#include "newgrf_object.h"
#include "rev.h"
#include "fios.h"
#include "strings_func.h"
#include "date_func.h"
#include "string_func.h"
#include "network/network.h"
#include <map>
#include "smallmap_gui.h"
#include "genworld.h"
#include "error.h"
#include "vehicle_func.h"
#include "language.h"
#include "vehicle_base.h"

#include "table/strings.h"
#include "table/build_industry.h"

/* TTDPatch extended GRF format codec
 * (c) Petr Baudis 2004 (GPL'd)
 * Changes by Florian octo Forster are (c) by the OpenTTD development team.
 *
 * Contains portions of documentation by TTDPatch team.
 * Thanks especially to Josef Drexler for the documentation as well as a lot
 * of help at #tycoon. Also thanks to Michael Blunck for is GRF files which
 * served as subject to the initial testing of this codec. */

/** List of all loaded GRF files */
static SmallVector<GRFFile *, 16> _grf_files;

/** Miscellaneous GRF features, set by Action 0x0D, parameter 0x9E */
static byte _misc_grf_features = 0;

/** 32 * 8 = 256 flags. Apparently TTDPatch uses this many.. */
static uint32 _ttdpatch_flags[8];

/** Indicates which are the newgrf features currently loaded ingame */
GRFLoadedFeatures _loaded_newgrf_features;

enum GrfDataType {
	GDT_SOUND,
};

static const uint MAX_SPRITEGROUP = UINT8_MAX; ///< Maximum GRF-local ID for a spritegroup.

/** Temporary data during loading of GRFs */
struct GrfProcessingState {
private:
	/** Definition of a single Action1 spriteset */
	struct SpriteSet {
		SpriteID sprite;  ///< SpriteID of the first sprite of the set.
		uint num_sprites; ///< Number of sprites in the set.
	};

	/** Currently referenceable spritesets */
	std::map<uint, SpriteSet> spritesets[GSF_END];

public:
	/* Global state */
	GrfLoadingStage stage;    ///< Current loading stage
	SpriteID spriteid;        ///< First available SpriteID for loading realsprites.

	/* Local state in the file */
	uint file_index;          ///< File index of currently processed GRF file.
	GRFFile *grffile;         ///< Currently processed GRF file.
	GRFConfig *grfconfig;     ///< Config of the currently processed GRF file.
	uint32 nfo_line;          ///< Currently processed pseudo sprite number in the GRF.

	/* Kind of return values when processing certain actions */
	int skip_sprites;         ///< Number of psuedo sprites to skip before processing the next one. (-1 to skip to end of file)
	byte data_blocks;         ///< Number of binary include sprites to read before processing the next pseudo sprite.
	GrfDataType data_type;    ///< Type of the binary include sprites to read.

	/* Currently referenceable spritegroups */
	SpriteGroup *spritegroups[MAX_SPRITEGROUP + 1];

	/** Clear temporary data before processing the next file in the current loading stage */
	void ClearDataForNextFile()
	{
		this->nfo_line = 0;
		this->skip_sprites = 0;
		this->data_blocks = 0;

		for (uint i = 0; i < GSF_END; i++) {
			this->spritesets[i].clear();
		}

		memset(this->spritegroups, 0, sizeof(this->spritegroups));
	}

	/**
	 * Records new spritesets.
	 * @param feature GrfSpecFeature the set is defined for.
	 * @param first_sprite SpriteID of the first sprite in the set.
	 * @param first_set First spriteset to define.
	 * @param numsets Number of sets to define.
	 * @param numents Number of sprites per set to define.
	 */
	void AddSpriteSets(byte feature, SpriteID first_sprite, uint first_set, uint numsets, uint numents)
	{
		assert(feature < GSF_END);
		for (uint i = 0; i < numsets; i++) {
			SpriteSet &set = this->spritesets[feature][first_set + i];
			set.sprite = first_sprite + i * numents;
			set.num_sprites = numents;
		}
	}

	/**
	 * Check whether there are any valid spritesets for a feature.
	 * @param feature GrfSpecFeature to check.
	 * @return true if there are any valid sets.
	 * @note Spritesets with zero sprites are valid to allow callback-failures.
	 */
	bool HasValidSpriteSets(byte feature) const
	{
		assert(feature < GSF_END);
		return !this->spritesets[feature].empty();
	}

	/**
	 * Check whether a specific set is defined.
	 * @param feature GrfSpecFeature to check.
	 * @param set Set to check.
	 * @return true if the set is valid.
	 * @note Spritesets with zero sprites are valid to allow callback-failures.
	 */
	bool IsValidSpriteSet(byte feature, uint set) const
	{
		assert(feature < GSF_END);
		return this->spritesets[feature].find(set) != this->spritesets[feature].end();
	}

	/**
	 * Returns the first sprite of a spriteset.
	 * @param feature GrfSpecFeature to query.
	 * @param set Set to query.
	 * @return First sprite of the set.
	 */
	SpriteID GetSprite(byte feature, uint set) const
	{
		assert(IsValidSpriteSet(feature, set));
		return this->spritesets[feature].find(set)->second.sprite;
	}

	/**
	 * Returns the number of sprites in a spriteset
	 * @param feature GrfSpecFeature to query.
	 * @param set Set to query.
	 * @return Number of sprites in the set.
	 */
	uint GetNumEnts(byte feature, uint set) const
	{
		assert(IsValidSpriteSet(feature, set));
		return this->spritesets[feature].find(set)->second.num_sprites;
	}
};

static GrfProcessingState _cur;


class OTTDByteReaderSignal { };

/** Class to read from a NewGRF file */
class ByteReader {
protected:
	byte *data;
	byte *end;

public:
	ByteReader(byte *data, byte *end) : data(data), end(end) { }

	FORCEINLINE byte ReadByte()
	{
		if (data < end) return *(data)++;
		throw OTTDByteReaderSignal();
	}

	uint16 ReadWord()
	{
		uint16 val = ReadByte();
		return val | (ReadByte() << 8);
	}

	uint16 ReadExtendedByte()
	{
		uint16 val = ReadByte();
		return val == 0xFF ? ReadWord() : val;
	}

	uint32 ReadDWord()
	{
		uint32 val = ReadWord();
		return val | (ReadWord() << 16);
	}

	uint32 ReadVarSize(byte size)
	{
		switch (size) {
			case 1: return ReadByte();
			case 2: return ReadWord();
			case 4: return ReadDWord();
			default:
				NOT_REACHED();
				return 0;
		}
	}

	const char *ReadString()
	{
		char *string = reinterpret_cast<char *>(data);
		size_t string_length = ttd_strnlen(string, Remaining());

		if (string_length == Remaining()) {
			/* String was not NUL terminated, so make sure it is now. */
			string[string_length - 1] = '\0';
			grfmsg(7, "String was not terminated with a zero byte.");
		} else {
			/* Increase the string length to include the NUL byte. */
			string_length++;
		}
		Skip(string_length);

		return string;
	}

	FORCEINLINE size_t Remaining() const
	{
		return end - data;
	}

	FORCEINLINE bool HasData(size_t count = 1) const
	{
		return data + count <= end;
	}

	FORCEINLINE byte *Data()
	{
		return data;
	}

	FORCEINLINE void Skip(size_t len)
	{
		data += len;
		/* It is valid to move the buffer to exactly the end of the data,
		 * as there may not be any more data read. */
		if (data > end) throw OTTDByteReaderSignal();
	}
};

typedef void (*SpecialSpriteHandler)(ByteReader *buf);

static const uint MAX_STATIONS = 256;

/** Temporary engine data used when loading only */
struct GRFTempEngineData {
	uint16 cargo_allowed;
	uint16 cargo_disallowed;
	RailTypeLabel railtypelabel;
	const GRFFile *refitmask_grf; ///< GRF providing the cargo translation table for the refitmask.
	bool refitmask_valid;    ///< Did the newgrf set any refittability property? If not, default refittability will be applied.
	bool prop27_set;         ///< Did the NewGRF set property 27 (misc flags)?
	uint8 rv_max_speed;      ///< Temporary storage of RV prop 15, maximum speed in mph/0.8
	uint32 ctt_include_mask; ///< Cargo types always included in the refit mask.
	uint32 ctt_exclude_mask; ///< Cargo types always excluded from the refit mask.
};

static GRFTempEngineData *_gted;  ///< Temporary engine data used during NewGRF loading

/**
 * Contains the GRF ID of the owner of a vehicle if it has been reserved.
 * GRM for vehicles is only used if dynamic engine allocation is disabled,
 * so 256 is the number of original engines. */
static uint32 _grm_engines[256];

/** Contains the GRF ID of the owner of a cargo if it has been reserved */
static uint32 _grm_cargos[NUM_CARGO * 2];

struct GRFLocation {
	uint32 grfid;
	uint32 nfoline;

	GRFLocation(uint32 grfid, uint32 nfoline) : grfid(grfid), nfoline(nfoline) { }

	bool operator<(const GRFLocation &other) const
	{
		return this->grfid < other.grfid || (this->grfid == other.grfid && this->nfoline < other.nfoline);
	}

	bool operator == (const GRFLocation &other) const
	{
		return this->grfid == other.grfid && this->nfoline == other.nfoline;
	}
};

static std::map<GRFLocation, SpriteID> _grm_sprites;
typedef std::map<GRFLocation, byte*> GRFLineToSpriteOverride;
static GRFLineToSpriteOverride _grf_line_to_action6_sprite_override;

/**
 * DEBUG() function dedicated to newGRF debugging messages
 * Function is essentially the same as DEBUG(grf, severity, ...) with the
 * addition of file:line information when parsing grf files.
 * NOTE: for the above reason(s) grfmsg() should ONLY be used for
 * loading/parsing grf files, not for runtime debug messages as there
 * is no file information available during that time.
 * @param severity debugging severity level, see debug.h
 * @param str message in printf() format
 */
void CDECL grfmsg(int severity, const char *str, ...)
{
	char buf[1024];
	va_list va;

	va_start(va, str);
	vsnprintf(buf, sizeof(buf), str, va);
	va_end(va);

	DEBUG(grf, severity, "[%s:%d] %s", _cur.grfconfig->filename, _cur.nfo_line, buf);
}

/**
 * Obtain a NewGRF file by its grfID
 * @param grfid The grfID to obtain the file for
 * @return The file.
 */
static GRFFile *GetFileByGRFID(uint32 grfid)
{
	const GRFFile * const *end = _grf_files.End();
	for (GRFFile * const *file = _grf_files.Begin(); file != end; file++) {
		if ((*file)->grfid == grfid) return *file;
	}
	return NULL;
}

/**
 * Obtain a NewGRF file by its filename
 * @param filename The filename to obtain the file for.
 * @return The file.
 */
static GRFFile *GetFileByFilename(const char *filename)
{
	const GRFFile * const *end = _grf_files.End();
	for (GRFFile * const *file = _grf_files.Begin(); file != end; file++) {
		if (strcmp((*file)->filename, filename) == 0) return *file;
	}
	return NULL;
}

/** Reset all NewGRFData that was used only while processing data */
static void ClearTemporaryNewGRFData(GRFFile *gf)
{
	/* Clear the GOTO labels used for GRF processing */
	for (GRFLabel *l = gf->label; l != NULL;) {
		GRFLabel *l2 = l->next;
		free(l);
		l = l2;
	}
	gf->label = NULL;
}

/**
 * Disable a GRF
 * @param message Error message or STR_NULL.
 * @param config GRFConfig to disable, NULL for current.
 * @return Error message of the GRF for further customisation.
 */
static GRFError *DisableGrf(StringID message = STR_NULL, GRFConfig *config = NULL)
{
	GRFFile *file;
	if (config != NULL) {
		file = GetFileByGRFID(config->ident.grfid);
	} else {
		config = _cur.grfconfig;
		file = _cur.grffile;
	}

	config->status = GCS_DISABLED;
	if (file != NULL) ClearTemporaryNewGRFData(file);
	if (config == _cur.grfconfig) _cur.skip_sprites = -1;

	if (message != STR_NULL) {
		delete config->error;
		config->error = new GRFError(STR_NEWGRF_ERROR_MSG_FATAL, message);
	}

	return config->error;
}


typedef std::map<StringID *, uint32> StringIDToGRFIDMapping;
static StringIDToGRFIDMapping _string_to_grf_mapping;

/**
 * Used when setting an object's property to map to the GRF's strings
 * while taking in consideration the "drift" between TTDPatch string system and OpenTTD's one
 * @param grfid Id of the grf file.
 * @param str StringID that we want to have the equivalent in OoenTTD.
 * @return The properly adjusted StringID.
 */
StringID MapGRFStringID(uint32 grfid, StringID str)
{
	/* 0xD0 and 0xDC stand for all the TextIDs in the range
	 * of 0xD000 (misc graphics texts) and 0xDC00 (misc persistent texts).
	 * These strings are unique to each grf file, and thus require to be used with the
	 * grfid in which they are declared */
	switch (GB(str, 8, 8)) {
		case 0xD0: case 0xD1: case 0xD2: case 0xD3:
		case 0xDC:
			return GetGRFStringID(grfid, str);

		case 0xD4: case 0xD5: case 0xD6: case 0xD7:
			/* Strings embedded via 0x81 have 0x400 added to them (no real
			 * explanation why...) */
			return GetGRFStringID(grfid, str - 0x400);

		default: break;
	}

	return TTDPStringIDToOTTDStringIDMapping(str);
}

static std::map<uint32, uint32> _grf_id_overrides;

/**
 * Set the override for a NewGRF
 * @param source_grfid The grfID which wants to override another NewGRF.
 * @param target_grfid The grfID which is being overridden.
 */
static void SetNewGRFOverride(uint32 source_grfid, uint32 target_grfid)
{
	_grf_id_overrides[source_grfid] = target_grfid;
	grfmsg(5, "SetNewGRFOverride: Added override of 0x%X to 0x%X", BSWAP32(source_grfid), BSWAP32(target_grfid));
}

/**
 * Returns the engine associated to a certain internal_id, resp. allocates it.
 * @param file NewGRF that wants to change the engine.
 * @param type Vehicle type.
 * @param internal_id Engine ID inside the NewGRF.
 * @param static_access If the engine is not present, return NULL instead of allocating a new engine. (Used for static Action 0x04).
 * @return The requested engine.
 */
static Engine *GetNewEngine(const GRFFile *file, VehicleType type, uint16 internal_id, bool static_access = false)
{
	/* Hack for add-on GRFs that need to modify another GRF's engines. This lets
	 * them use the same engine slots. */
	uint32 scope_grfid = INVALID_GRFID; // If not using dynamic_engines, all newgrfs share their ID range
	if (_settings_game.vehicle.dynamic_engines) {
		/* If dynamic_engies is enabled, there can be multiple independent ID ranges. */
		scope_grfid = file->grfid;
		uint32 override = _grf_id_overrides[file->grfid];
		if (override != 0) {
			scope_grfid = override;
			const GRFFile *grf_match = GetFileByGRFID(override);
			if (grf_match == NULL) {
				grfmsg(5, "Tried mapping from GRFID %x to %x but target is not loaded", BSWAP32(file->grfid), BSWAP32(override));
			} else {
				grfmsg(5, "Mapping from GRFID %x to %x", BSWAP32(file->grfid), BSWAP32(override));
			}
		}

		/* Check if the engine is registered in the override manager */
		EngineID engine = _engine_mngr.GetID(type, internal_id, scope_grfid);
		if (engine != INVALID_ENGINE) {
			Engine *e = Engine::Get(engine);
			if (e->grf_prop.grffile == NULL) e->grf_prop.grffile = file;
			return e;
		}
	}

	/* Check if there is an unreserved slot */
	EngineID engine = _engine_mngr.GetID(type, internal_id, INVALID_GRFID);
	if (engine != INVALID_ENGINE) {
		Engine *e = Engine::Get(engine);

		if (e->grf_prop.grffile == NULL) {
			e->grf_prop.grffile = file;
			grfmsg(5, "Replaced engine at index %d for GRFID %x, type %d, index %d", e->index, BSWAP32(file->grfid), type, internal_id);
		}

		/* Reserve the engine slot */
		if (!static_access) {
			EngineIDMapping *eid = _engine_mngr.Get(engine);
			eid->grfid           = scope_grfid; // Note: this is INVALID_GRFID if dynamic_engines is disabled, so no reservation
		}

		return e;
	}

	if (static_access) return NULL;

	if (!Engine::CanAllocateItem()) {
		grfmsg(0, "Can't allocate any more engines");
		return NULL;
	}

	size_t engine_pool_size = Engine::GetPoolSize();

	/* ... it's not, so create a new one based off an existing engine */
	Engine *e = new Engine(type, internal_id);
	e->grf_prop.grffile = file;

	/* Reserve the engine slot */
	assert(_engine_mngr.Length() == e->index);
	EngineIDMapping *eid = _engine_mngr.Append();
	eid->type            = type;
	eid->grfid           = scope_grfid; // Note: this is INVALID_GRFID if dynamic_engines is disabled, so no reservation
	eid->internal_id     = internal_id;
	eid->substitute_id   = min(internal_id, _engine_counts[type]); // substitute_id == _engine_counts[subtype] means "no substitute"

	if (engine_pool_size != Engine::GetPoolSize()) {
		/* Resize temporary engine data ... */
		_gted = ReallocT(_gted, Engine::GetPoolSize());

		/* and blank the new block. */
		size_t len = (Engine::GetPoolSize() - engine_pool_size) * sizeof(*_gted);
		memset(_gted + engine_pool_size, 0, len);
	}
	if (type == VEH_TRAIN) {
		_gted[e->index].railtypelabel = GetRailTypeInfo(e->u.rail.railtype)->label;
	}

	grfmsg(5, "Created new engine at index %d for GRFID %x, type %d, index %d", e->index, BSWAP32(file->grfid), type, internal_id);

	return e;
}

/**
 * Return the ID of a new engine
 * @param file The NewGRF file providing the engine.
 * @param type The Vehicle type.
 * @param internal_id NewGRF-internal ID of the engine.
 * @return The new EngineID.
 * @note depending on the dynamic_engine setting and a possible override
 *       property the grfID may be unique or overwriting or partially re-defining
 *       properties of an existing engine.
 */
EngineID GetNewEngineID(const GRFFile *file, VehicleType type, uint16 internal_id)
{
	uint32 scope_grfid = INVALID_GRFID; // If not using dynamic_engines, all newgrfs share their ID range
	if (_settings_game.vehicle.dynamic_engines) {
		scope_grfid = file->grfid;
		uint32 override = _grf_id_overrides[file->grfid];
		if (override != 0) scope_grfid = override;
	}

	return _engine_mngr.GetID(type, internal_id, scope_grfid);
}

/**
 * Map the colour modifiers of TTDPatch to those that Open is using.
 * @param grf_sprite Pointer to the structure been modified.
 */
static void MapSpriteMappingRecolour(PalSpriteID *grf_sprite)
{
	if (HasBit(grf_sprite->pal, 14)) {
		ClrBit(grf_sprite->pal, 14);
		SetBit(grf_sprite->sprite, SPRITE_MODIFIER_OPAQUE);
	}

	if (HasBit(grf_sprite->sprite, 14)) {
		ClrBit(grf_sprite->sprite, 14);
		SetBit(grf_sprite->sprite, PALETTE_MODIFIER_TRANSPARENT);
	}

	if (HasBit(grf_sprite->sprite, 15)) {
		ClrBit(grf_sprite->sprite, 15);
		SetBit(grf_sprite->sprite, PALETTE_MODIFIER_COLOUR);
	}
}

/**
 * Read a sprite and a palette from the GRF and convert them into a format
 * suitable to OpenTTD.
 * @param buf                 Input stream.
 * @param read_flags          Whether to read TileLayoutFlags.
 * @param invert_action1_flag Set to true, if palette bit 15 means 'not from action 1'.
 * @param use_cur_spritesets  Whether to use currently referenceable action 1 sets.
 * @param feature             GrfSpecFeature to use spritesets from.
 * @param [out] grf_sprite    Read sprite and palette.
 * @param [out] max_sprite_offset  Optionally returns the number of sprites in the spriteset of the sprite. (0 if no spritset)
 * @param [out] max_palette_offset Optionally returns the number of sprites in the spriteset of the palette. (0 if no spritset)
 * @return Read TileLayoutFlags.
 */
static TileLayoutFlags ReadSpriteLayoutSprite(ByteReader *buf, bool read_flags, bool invert_action1_flag, bool use_cur_spritesets, int feature, PalSpriteID *grf_sprite, uint16 *max_sprite_offset = NULL, uint16 *max_palette_offset = NULL)
{
	grf_sprite->sprite = buf->ReadWord();
	grf_sprite->pal = buf->ReadWord();
	TileLayoutFlags flags = read_flags ? (TileLayoutFlags)buf->ReadWord() : TLF_NOTHING;

	MapSpriteMappingRecolour(grf_sprite);

	bool custom_sprite = HasBit(grf_sprite->pal, 15) != invert_action1_flag;
	ClrBit(grf_sprite->pal, 15);
	if (custom_sprite) {
		/* Use sprite from Action 1 */
		uint index = GB(grf_sprite->sprite, 0, 14);
		if (use_cur_spritesets && (!_cur.IsValidSpriteSet(feature, index) || _cur.GetNumEnts(feature, index) == 0)) {
			grfmsg(1, "ReadSpriteLayoutSprite: Spritelayout uses undefined custom spriteset %d", index);
			grf_sprite->sprite = SPR_IMG_QUERY;
			grf_sprite->pal = PAL_NONE;
		} else {
			SpriteID sprite = use_cur_spritesets ? _cur.GetSprite(feature, index) : index;
			if (max_sprite_offset != NULL) *max_sprite_offset = use_cur_spritesets ? _cur.GetNumEnts(feature, index) : UINT16_MAX;
			SB(grf_sprite->sprite, 0, SPRITE_WIDTH, sprite);
			SetBit(grf_sprite->sprite, SPRITE_MODIFIER_CUSTOM_SPRITE);
		}
	} else if ((flags & TLF_SPRITE_VAR10) && !(flags & TLF_SPRITE_REG_FLAGS)) {
		grfmsg(1, "ReadSpriteLayoutSprite: Spritelayout specifies var10 value for non-action-1 sprite");
		DisableGrf(STR_NEWGRF_ERROR_INVALID_SPRITE_LAYOUT);
		return flags;
	}

	if (flags & TLF_CUSTOM_PALETTE) {
		/* Use palette from Action 1 */
		uint index = GB(grf_sprite->pal, 0, 14);
		if (use_cur_spritesets && (!_cur.IsValidSpriteSet(feature, index) || _cur.GetNumEnts(feature, index) == 0)) {
			grfmsg(1, "ReadSpriteLayoutSprite: Spritelayout uses undefined custom spriteset %d for 'palette'", index);
			grf_sprite->pal = PAL_NONE;
		} else {
			SpriteID sprite = use_cur_spritesets ? _cur.GetSprite(feature, index) : index;
			if (max_palette_offset != NULL) *max_palette_offset = use_cur_spritesets ? _cur.GetNumEnts(feature, index) : UINT16_MAX;
			SB(grf_sprite->pal, 0, SPRITE_WIDTH, sprite);
			SetBit(grf_sprite->pal, SPRITE_MODIFIER_CUSTOM_SPRITE);
		}
	} else if ((flags & TLF_PALETTE_VAR10) && !(flags & TLF_PALETTE_REG_FLAGS)) {
		grfmsg(1, "ReadSpriteLayoutRegisters: Spritelayout specifies var10 value for non-action-1 palette");
		DisableGrf(STR_NEWGRF_ERROR_INVALID_SPRITE_LAYOUT);
		return flags;
	}

	return flags;
}

/**
 * Preprocess the TileLayoutFlags and read register modifiers from the GRF.
 * @param buf        Input stream.
 * @param flags      TileLayoutFlags to process.
 * @param is_parent  Whether the sprite is a parentsprite with a bounding box.
 * @param dts        Sprite layout to insert data into.
 * @param index      Sprite index to process; 0 for ground sprite.
 */
static void ReadSpriteLayoutRegisters(ByteReader *buf, TileLayoutFlags flags, bool is_parent, NewGRFSpriteLayout *dts, uint index)
{
	if (!(flags & TLF_DRAWING_FLAGS)) return;

	if (dts->registers == NULL) dts->AllocateRegisters();
	TileLayoutRegisters &regs = const_cast<TileLayoutRegisters&>(dts->registers[index]);
	regs.flags = flags & TLF_DRAWING_FLAGS;

	if (flags & TLF_DODRAW)  regs.dodraw  = buf->ReadByte();
	if (flags & TLF_SPRITE)  regs.sprite  = buf->ReadByte();
	if (flags & TLF_PALETTE) regs.palette = buf->ReadByte();

	if (is_parent) {
		if (flags & TLF_BB_XY_OFFSET) {
			regs.delta.parent[0] = buf->ReadByte();
			regs.delta.parent[1] = buf->ReadByte();
		}
		if (flags & TLF_BB_Z_OFFSET)    regs.delta.parent[2] = buf->ReadByte();
	} else {
		if (flags & TLF_CHILD_X_OFFSET) regs.delta.child[0]  = buf->ReadByte();
		if (flags & TLF_CHILD_Y_OFFSET) regs.delta.child[1]  = buf->ReadByte();
	}

	if (flags & TLF_SPRITE_VAR10) {
		regs.sprite_var10 = buf->ReadByte();
		if (regs.sprite_var10 > TLR_MAX_VAR10) {
			grfmsg(1, "ReadSpriteLayoutRegisters: Spritelayout specifies var10 (%d) exceeding the maximal allowed value %d", regs.sprite_var10, TLR_MAX_VAR10);
			DisableGrf(STR_NEWGRF_ERROR_INVALID_SPRITE_LAYOUT);
			return;
		}
	}

	if (flags & TLF_PALETTE_VAR10) {
		regs.palette_var10 = buf->ReadByte();
		if (regs.palette_var10 > TLR_MAX_VAR10) {
			grfmsg(1, "ReadSpriteLayoutRegisters: Spritelayout specifies var10 (%d) exceeding the maximal allowed value %d", regs.palette_var10, TLR_MAX_VAR10);
			DisableGrf(STR_NEWGRF_ERROR_INVALID_SPRITE_LAYOUT);
			return;
		}
	}
}

/**
 * Read a spritelayout from the GRF.
 * @param buf                  Input
 * @param num_building_sprites Number of building sprites to read
 * @param use_cur_spritesets   Whether to use currently referenceable action 1 sets.
 * @param feature              GrfSpecFeature to use spritesets from.
 * @param allow_var10          Whether the spritelayout may specifiy var10 values for resolving multiple action-1-2-3 chains
 * @param no_z_position        Whether bounding boxes have no Z offset
 * @param dts                  Layout container to output into
 * @return True on error (GRF was disabled).
 */
static bool ReadSpriteLayout(ByteReader *buf, uint num_building_sprites, bool use_cur_spritesets, byte feature, bool allow_var10, bool no_z_position, NewGRFSpriteLayout *dts)
{
	bool has_flags = HasBit(num_building_sprites, 6);
	ClrBit(num_building_sprites, 6);
	TileLayoutFlags valid_flags = TLF_KNOWN_FLAGS;
	if (!allow_var10) valid_flags &= ~TLF_VAR10_FLAGS;
	dts->Allocate(num_building_sprites); // allocate before reading groundsprite flags

	uint16 *max_sprite_offset = AllocaM(uint16, num_building_sprites + 1);
	uint16 *max_palette_offset = AllocaM(uint16, num_building_sprites + 1);
	MemSetT(max_sprite_offset, 0, num_building_sprites + 1);
	MemSetT(max_palette_offset, 0, num_building_sprites + 1);

	/* Groundsprite */
	TileLayoutFlags flags = ReadSpriteLayoutSprite(buf, has_flags, false, use_cur_spritesets, feature, &dts->ground, max_sprite_offset, max_palette_offset);
	if (_cur.skip_sprites < 0) return true;

	if (flags & ~(valid_flags & ~TLF_NON_GROUND_FLAGS)) {
		grfmsg(1, "ReadSpriteLayout: Spritelayout uses invalid flag 0x%x for ground sprite", flags & ~(valid_flags & ~TLF_NON_GROUND_FLAGS));
		DisableGrf(STR_NEWGRF_ERROR_INVALID_SPRITE_LAYOUT);
		return true;
	}

	ReadSpriteLayoutRegisters(buf, flags, false, dts, 0);
	if (_cur.skip_sprites < 0) return true;

	for (uint i = 0; i < num_building_sprites; i++) {
		DrawTileSeqStruct *seq = const_cast<DrawTileSeqStruct*>(&dts->seq[i]);

		flags = ReadSpriteLayoutSprite(buf, has_flags, false, use_cur_spritesets, feature, &seq->image, max_sprite_offset + i + 1, max_palette_offset + i + 1);
		if (_cur.skip_sprites < 0) return true;

		if (flags & ~valid_flags) {
			grfmsg(1, "ReadSpriteLayout: Spritelayout uses unknown flag 0x%x", flags & ~valid_flags);
			DisableGrf(STR_NEWGRF_ERROR_INVALID_SPRITE_LAYOUT);
			return true;
		}

		seq->delta_x = buf->ReadByte();
		seq->delta_y = buf->ReadByte();

		if (!no_z_position) seq->delta_z = buf->ReadByte();

		if (seq->IsParentSprite()) {
			seq->size_x = buf->ReadByte();
			seq->size_y = buf->ReadByte();
			seq->size_z = buf->ReadByte();
		}

		ReadSpriteLayoutRegisters(buf, flags, seq->IsParentSprite(), dts, i + 1);
		if (_cur.skip_sprites < 0) return true;
	}

	/* Check if the number of sprites per spriteset is consistent */
	bool is_consistent = true;
	dts->consistent_max_offset = 0;
	for (uint i = 0; i < num_building_sprites + 1; i++) {
		if (max_sprite_offset[i] > 0) {
			if (dts->consistent_max_offset == 0) {
				dts->consistent_max_offset = max_sprite_offset[i];
			} else if (dts->consistent_max_offset != max_sprite_offset[i]) {
				is_consistent = false;
				break;
			}
		}
		if (max_palette_offset[i] > 0) {
			if (dts->consistent_max_offset == 0) {
				dts->consistent_max_offset = max_palette_offset[i];
			} else if (dts->consistent_max_offset != max_palette_offset[i]) {
				is_consistent = false;
				break;
			}
		}
	}

	/* When the Action1 sets are unknown, everything should be 0 (no spriteset usage) or UINT16_MAX (some spriteset usage) */
	assert(use_cur_spritesets || (is_consistent && (dts->consistent_max_offset == 0 || dts->consistent_max_offset == UINT16_MAX)));

	if (!is_consistent || dts->registers != NULL) {
		dts->consistent_max_offset = 0;
		if (dts->registers == NULL) dts->AllocateRegisters();

		for (uint i = 0; i < num_building_sprites + 1; i++) {
			TileLayoutRegisters &regs = const_cast<TileLayoutRegisters&>(dts->registers[i]);
			regs.max_sprite_offset = max_sprite_offset[i];
			regs.max_palette_offset = max_palette_offset[i];
		}
	}

	return false;
}

/**
 * Converts TTD(P) Base Price pointers into the enum used by OTTD
 * See http://wiki.ttdpatch.net/tiki-index.php?page=BaseCosts
 * @param base_pointer TTD(P) Base Price Pointer
 * @param error_location Function name for grf error messages
 * @param index If #base_pointer is valid, #index is assigned to the matching price; else it is left unchanged
 */
static void ConvertTTDBasePrice(uint32 base_pointer, const char *error_location, Price *index)
{
	/* Special value for 'none' */
	if (base_pointer == 0) {
		*index = INVALID_PRICE;
		return;
	}

	static const uint32 start = 0x4B34; ///< Position of first base price
	static const uint32 size  = 6;      ///< Size of each base price record

	if (base_pointer < start || (base_pointer - start) % size != 0 || (base_pointer - start) / size >= PR_END) {
		grfmsg(1, "%s: Unsupported running cost base 0x%04X, ignoring", error_location, base_pointer);
		return;
	}

	*index = (Price)((base_pointer - start) / size);
}

/** Possible return values for the FeatureChangeInfo functions */
enum ChangeInfoResult {
	CIR_SUCCESS,    ///< Variable was parsed and read
	CIR_DISABLED,   ///< GRF was disabled due to error
	CIR_UNHANDLED,  ///< Variable was parsed but unread
	CIR_UNKNOWN,    ///< Variable is unknown
	CIR_INVALID_ID, ///< Attempt to modify an invalid ID
};

typedef ChangeInfoResult (*VCI_Handler)(uint engine, int numinfo, int prop, ByteReader *buf);

/**
 * Define properties common to all vehicles
 * @param ei Engine info.
 * @param prop The property to change.
 * @param buf The property value.
 * @return ChangeInfoResult.
 */
static ChangeInfoResult CommonVehicleChangeInfo(EngineInfo *ei, int prop, ByteReader *buf)
{
	switch (prop) {
		case 0x00: // Introduction date
			ei->base_intro = buf->ReadWord() + DAYS_TILL_ORIGINAL_BASE_YEAR;
			break;

		case 0x02: // Decay speed
			ei->decay_speed = buf->ReadByte();
			break;

		case 0x03: // Vehicle life
			ei->lifelength = buf->ReadByte();
			break;

		case 0x04: // Model life
			ei->base_life = buf->ReadByte();
			break;

		case 0x06: // Climates available
			ei->climates = buf->ReadByte();
			break;

		case PROP_VEHICLE_LOAD_AMOUNT: // 0x07 Loading speed
			/* Amount of cargo loaded during a vehicle's "loading tick" */
			ei->load_amount = buf->ReadByte();
			break;

		default:
			return CIR_UNKNOWN;
	}

	return CIR_SUCCESS;
}

/**
 * Define properties for rail vehicles
 * @param engine :ocal ID of the first vehicle.
 * @param numinfo Number of subsequent IDs to change the property for.
 * @param prop The property to change.
 * @param buf The property value.
 * @return ChangeInfoResult.
 */
static ChangeInfoResult RailVehicleChangeInfo(uint engine, int numinfo, int prop, ByteReader *buf)
{
	ChangeInfoResult ret = CIR_SUCCESS;

	for (int i = 0; i < numinfo; i++) {
		Engine *e = GetNewEngine(_cur.grffile, VEH_TRAIN, engine + i);
		if (e == NULL) return CIR_INVALID_ID; // No engine could be allocated, so neither can any next vehicles

		EngineInfo *ei = &e->info;
		RailVehicleInfo *rvi = &e->u.rail;

		switch (prop) {
			case 0x05: { // Track type
				uint8 tracktype = buf->ReadByte();

				if (tracktype < _cur.grffile->railtype_max) {
					_gted[e->index].railtypelabel = _cur.grffile->railtype_list[tracktype];
					break;
				}

				switch (tracktype) {
					case 0: _gted[e->index].railtypelabel = rvi->engclass >= 2 ? RAILTYPE_ELECTRIC_LABEL : RAILTYPE_RAIL_LABEL; break;
					case 1: _gted[e->index].railtypelabel = RAILTYPE_MONO_LABEL; break;
					case 2: _gted[e->index].railtypelabel = RAILTYPE_MAGLEV_LABEL; break;
					default:
						grfmsg(1, "RailVehicleChangeInfo: Invalid track type %d specified, ignoring", tracktype);
						break;
				}
				break;
			}

			case 0x08: // AI passenger service
				/* Tells the AI that this engine is designed for
				 * passenger services and shouldn't be used for freight. */
				rvi->ai_passenger_only = buf->ReadByte();
				break;

			case PROP_TRAIN_SPEED: { // 0x09 Speed (1 unit is 1 km-ish/h)
				uint16 speed = buf->ReadWord();
				if (speed == 0xFFFF) speed = 0;

				rvi->max_speed = speed;
				break;
			}

			case PROP_TRAIN_POWER: // 0x0B Power
				rvi->power = buf->ReadWord();

				/* Set engine / wagon state based on power */
				if (rvi->power != 0) {
					if (rvi->railveh_type == RAILVEH_WAGON) {
						rvi->railveh_type = RAILVEH_SINGLEHEAD;
					}
				} else {
					rvi->railveh_type = RAILVEH_WAGON;
				}
				break;

			case PROP_TRAIN_RUNNING_COST_FACTOR: // 0x0D Running cost factor
				rvi->running_cost = buf->ReadByte();
				break;

			case 0x0E: // Running cost base
				ConvertTTDBasePrice(buf->ReadDWord(), "RailVehicleChangeInfo", &rvi->running_cost_class);
				break;

			case 0x12: { // Sprite ID
				uint8 spriteid = buf->ReadByte();

				/* TTD sprite IDs point to a location in a 16bit array, but we use it
				 * as an array index, so we need it to be half the original value. */
				if (spriteid < 0xFD) spriteid >>= 1;

				rvi->image_index = spriteid;
				break;
			}

			case 0x13: { // Dual-headed
				uint8 dual = buf->ReadByte();

				if (dual != 0) {
					rvi->railveh_type = RAILVEH_MULTIHEAD;
				} else {
					rvi->railveh_type = rvi->power == 0 ?
						RAILVEH_WAGON : RAILVEH_SINGLEHEAD;
				}
				break;
			}

			case PROP_TRAIN_CARGO_CAPACITY: // 0x14 Cargo capacity
				rvi->capacity = buf->ReadByte();
				break;

			case 0x15: { // Cargo type
				uint8 ctype = buf->ReadByte();

				if (ctype == 0xFF) {
					/* 0xFF is specified as 'use first refittable' */
					ei->cargo_type = CT_INVALID;
				} else if (_cur.grffile->grf_version >= 8) {
					/* Use translated cargo. Might result in CT_INVALID (first refittable), if cargo is not defined. */
					ei->cargo_type = GetCargoTranslation(ctype, _cur.grffile);
				} else if (ctype < NUM_CARGO && HasBit(_cargo_mask, ctype)) {
					/* Use untranslated cargo. */
					ei->cargo_type = ctype;
				} else {
					ei->cargo_type = CT_INVALID;
					grfmsg(2, "RailVehicleChangeInfo: Invalid cargo type %d, using first refittable", ctype);
				}
				break;
			}

			case PROP_TRAIN_WEIGHT: // 0x16 Weight
				SB(rvi->weight, 0, 8, buf->ReadByte());
				break;

			case PROP_TRAIN_COST_FACTOR: // 0x17 Cost factor
				rvi->cost_factor = buf->ReadByte();
				break;

			case 0x18: // AI rank
				grfmsg(2, "RailVehicleChangeInfo: Property 0x18 'AI rank' not used by NoAI, ignored.");
				buf->ReadByte();
				break;

			case 0x19: { // Engine traction type
				/* What do the individual numbers mean?
				 * 0x00 .. 0x07: Steam
				 * 0x08 .. 0x27: Diesel
				 * 0x28 .. 0x31: Electric
				 * 0x32 .. 0x37: Monorail
				 * 0x38 .. 0x41: Maglev
				 */
				uint8 traction = buf->ReadByte();
				EngineClass engclass;

				if (traction <= 0x07) {
					engclass = EC_STEAM;
				} else if (traction <= 0x27) {
					engclass = EC_DIESEL;
				} else if (traction <= 0x31) {
					engclass = EC_ELECTRIC;
				} else if (traction <= 0x37) {
					engclass = EC_MONORAIL;
				} else if (traction <= 0x41) {
					engclass = EC_MAGLEV;
				} else {
					break;
				}

				if (_cur.grffile->railtype_max == 0) {
					/* Use traction type to select between normal and electrified
					 * rail only when no translation list is in place. */
					if (_gted[e->index].railtypelabel == RAILTYPE_RAIL_LABEL     && engclass >= EC_ELECTRIC) _gted[e->index].railtypelabel = RAILTYPE_ELECTRIC_LABEL;
					if (_gted[e->index].railtypelabel == RAILTYPE_ELECTRIC_LABEL && engclass  < EC_ELECTRIC) _gted[e->index].railtypelabel = RAILTYPE_RAIL_LABEL;
				}

				rvi->engclass = engclass;
				break;
			}

			case 0x1A: // Alter purchase list sort order
				AlterVehicleListOrder(e->index, buf->ReadExtendedByte());
				break;

			case 0x1B: // Powered wagons power bonus
				rvi->pow_wag_power = buf->ReadWord();
				break;

			case 0x1C: // Refit cost
				ei->refit_cost = buf->ReadByte();
				break;

			case 0x1D: // Refit cargo
				ei->refit_mask = buf->ReadDWord();
				_gted[e->index].refitmask_valid = true;
				_gted[e->index].refitmask_grf = _cur.grffile;
				break;

			case 0x1E: // Callback
				ei->callback_mask = buf->ReadByte();
				break;

			case PROP_TRAIN_TRACTIVE_EFFORT: // 0x1F Tractive effort coefficient
				rvi->tractive_effort = buf->ReadByte();
				break;

			case 0x20: // Air drag
				rvi->air_drag = buf->ReadByte();
				break;

			case PROP_TRAIN_SHORTEN_FACTOR: // 0x21 Shorter vehicle
				rvi->shorten_factor = buf->ReadByte();
				break;

			case 0x22: // Visual effect
				rvi->visual_effect = buf->ReadByte();
				/* Avoid accidentally setting visual_effect to the default value
				 * Since bit 6 (disable effects) is set anyways, we can safely erase some bits. */
				if (rvi->visual_effect == VE_DEFAULT) {
					assert(HasBit(rvi->visual_effect, VE_DISABLE_EFFECT));
					SB(rvi->visual_effect, VE_TYPE_START, VE_TYPE_COUNT, 0);
				}
				break;

			case 0x23: // Powered wagons weight bonus
				rvi->pow_wag_weight = buf->ReadByte();
				break;

			case 0x24: { // High byte of vehicle weight
				byte weight = buf->ReadByte();

				if (weight > 4) {
					grfmsg(2, "RailVehicleChangeInfo: Nonsensical weight of %d tons, ignoring", weight << 8);
				} else {
					SB(rvi->weight, 8, 8, weight);
				}
				break;
			}

			case PROP_TRAIN_USER_DATA: // 0x25 User-defined bit mask to set when checking veh. var. 42
				rvi->user_def_data = buf->ReadByte();
				break;

			case 0x26: // Retire vehicle early
				ei->retire_early = buf->ReadByte();
				break;

			case 0x27: // Miscellaneous flags
				ei->misc_flags = buf->ReadByte();
				_loaded_newgrf_features.has_2CC |= HasBit(ei->misc_flags, EF_USES_2CC);
				_gted[e->index].prop27_set = true;
				break;

			case 0x28: // Cargo classes allowed
				_gted[e->index].cargo_allowed = buf->ReadWord();
				_gted[e->index].refitmask_valid = true;
				break;

			case 0x29: // Cargo classes disallowed
				_gted[e->index].cargo_disallowed = buf->ReadWord();
				_gted[e->index].refitmask_valid = true;
				break;

			case 0x2A: // Long format introduction date (days since year 0)
				ei->base_intro = buf->ReadDWord();
				break;

			case PROP_TRAIN_CARGO_AGE_PERIOD: // 0x2B Cargo aging period
				ei->cargo_age_period = buf->ReadWord();
				break;

			case 0x2C:   // CTT refit include list
			case 0x2D: { // CTT refit exclude list
				uint8 count = buf->ReadByte();
				while (count--) {
					CargoID ctype = GetCargoTranslation(buf->ReadByte(), _cur.grffile);
					if (ctype == CT_INVALID) continue;
					SetBit(prop == 0x2C ? _gted[e->index].ctt_include_mask : _gted[e->index].ctt_exclude_mask, ctype);
				}
				_gted[e->index].refitmask_valid = true;
				break;
			}

			default:
				ret = CommonVehicleChangeInfo(ei, prop, buf);
				break;
		}
	}

	return ret;
}

/**
 * Define properties for road vehicles
 * @param engine Local ID of the first vehicle.
 * @param numinfo Number of subsequent IDs to change the property for.
 * @param prop The property to change.
 * @param buf The property value.
 * @return ChangeInfoResult.
 */
static ChangeInfoResult RoadVehicleChangeInfo(uint engine, int numinfo, int prop, ByteReader *buf)
{
	ChangeInfoResult ret = CIR_SUCCESS;

	for (int i = 0; i < numinfo; i++) {
		Engine *e = GetNewEngine(_cur.grffile, VEH_ROAD, engine + i);
		if (e == NULL) return CIR_INVALID_ID; // No engine could be allocated, so neither can any next vehicles

		EngineInfo *ei = &e->info;
		RoadVehicleInfo *rvi = &e->u.road;

		switch (prop) {
			case 0x08: // Speed (1 unit is 0.5 kmh)
				rvi->max_speed = buf->ReadByte();
				break;

			case PROP_ROADVEH_RUNNING_COST_FACTOR: // 0x09 Running cost factor
				rvi->running_cost = buf->ReadByte();
				break;

			case 0x0A: // Running cost base
				ConvertTTDBasePrice(buf->ReadDWord(), "RoadVehicleChangeInfo", &rvi->running_cost_class);
				break;

			case 0x0E: { // Sprite ID
				uint8 spriteid = buf->ReadByte();

				/* cars have different custom id in the GRF file */
				if (spriteid == 0xFF) spriteid = 0xFD;

				if (spriteid < 0xFD) spriteid >>= 1;

				rvi->image_index = spriteid;
				break;
			}

			case PROP_ROADVEH_CARGO_CAPACITY: // 0x0F Cargo capacity
				rvi->capacity = buf->ReadByte();
				break;

			case 0x10: { // Cargo type
				uint8 ctype = buf->ReadByte();

				if (ctype == 0xFF) {
					/* 0xFF is specified as 'use first refittable' */
					ei->cargo_type = CT_INVALID;
				} else if (_cur.grffile->grf_version >= 8) {
					/* Use translated cargo. Might result in CT_INVALID (first refittable), if cargo is not defined. */
					ei->cargo_type = GetCargoTranslation(ctype, _cur.grffile);
				} else if (ctype < NUM_CARGO && HasBit(_cargo_mask, ctype)) {
					/* Use untranslated cargo. */
					ei->cargo_type = ctype;
				} else {
					ei->cargo_type = CT_INVALID;
					grfmsg(2, "RailVehicleChangeInfo: Invalid cargo type %d, using first refittable", ctype);
				}
				break;
			}

			case PROP_ROADVEH_COST_FACTOR: // 0x11 Cost factor
				rvi->cost_factor = buf->ReadByte();
				break;

			case 0x12: // SFX
				rvi->sfx = buf->ReadByte();
				break;

			case PROP_ROADVEH_POWER: // Power in units of 10 HP.
				rvi->power = buf->ReadByte();
				break;

			case PROP_ROADVEH_WEIGHT: // Weight in units of 1/4 tons.
				rvi->weight = buf->ReadByte();
				break;

			case PROP_ROADVEH_SPEED: // Speed in mph/0.8
				_gted[e->index].rv_max_speed = buf->ReadByte();
				break;

			case 0x16: // Cargos available for refitting
				ei->refit_mask = buf->ReadDWord();
				_gted[e->index].refitmask_valid = true;
				_gted[e->index].refitmask_grf = _cur.grffile;
				break;

			case 0x17: // Callback mask
				ei->callback_mask = buf->ReadByte();
				break;

			case PROP_ROADVEH_TRACTIVE_EFFORT: // Tractive effort coefficient in 1/256.
				rvi->tractive_effort = buf->ReadByte();
				break;

			case 0x19: // Air drag
				rvi->air_drag = buf->ReadByte();
				break;

			case 0x1A: // Refit cost
				ei->refit_cost = buf->ReadByte();
				break;

			case 0x1B: // Retire vehicle early
				ei->retire_early = buf->ReadByte();
				break;

			case 0x1C: // Miscellaneous flags
				ei->misc_flags = buf->ReadByte();
				_loaded_newgrf_features.has_2CC |= HasBit(ei->misc_flags, EF_USES_2CC);
				break;

			case 0x1D: // Cargo classes allowed
				_gted[e->index].cargo_allowed = buf->ReadWord();
				_gted[e->index].refitmask_valid = true;
				break;

			case 0x1E: // Cargo classes disallowed
				_gted[e->index].cargo_disallowed = buf->ReadWord();
				_gted[e->index].refitmask_valid = true;
				break;

			case 0x1F: // Long format introduction date (days since year 0)
				ei->base_intro = buf->ReadDWord();
				break;

			case 0x20: // Alter purchase list sort order
				AlterVehicleListOrder(e->index, buf->ReadExtendedByte());
				break;

			case 0x21: // Visual effect
				rvi->visual_effect = buf->ReadByte();
				/* Avoid accidentally setting visual_effect to the default value
				 * Since bit 6 (disable effects) is set anyways, we can safely erase some bits. */
				if (rvi->visual_effect == VE_DEFAULT) {
					assert(HasBit(rvi->visual_effect, VE_DISABLE_EFFECT));
					SB(rvi->visual_effect, VE_TYPE_START, VE_TYPE_COUNT, 0);
				}
				break;

			case PROP_ROADVEH_CARGO_AGE_PERIOD: // 0x22 Cargo aging period
				ei->cargo_age_period = buf->ReadWord();
				break;

			case PROP_ROADVEH_SHORTEN_FACTOR: // 0x23 Shorter vehicle
				rvi->shorten_factor = buf->ReadByte();
				break;

			case 0x24:   // CTT refit include list
			case 0x25: { // CTT refit exclude list
				uint8 count = buf->ReadByte();
				while (count--) {
					CargoID ctype = GetCargoTranslation(buf->ReadByte(), _cur.grffile);
					if (ctype == CT_INVALID) continue;
					SetBit(prop == 0x24 ? _gted[e->index].ctt_include_mask : _gted[e->index].ctt_exclude_mask, ctype);
				}
				_gted[e->index].refitmask_valid = true;
				break;
			}

			default:
				ret = CommonVehicleChangeInfo(ei, prop, buf);
				break;
		}
	}

	return ret;
}

/**
 * Define properties for ships
 * @param engine Local ID of the first vehicle.
 * @param numinfo Number of subsequent IDs to change the property for.
 * @param prop The property to change.
 * @param buf The property value.
 * @return ChangeInfoResult.
 */
static ChangeInfoResult ShipVehicleChangeInfo(uint engine, int numinfo, int prop, ByteReader *buf)
{
	ChangeInfoResult ret = CIR_SUCCESS;

	for (int i = 0; i < numinfo; i++) {
		Engine *e = GetNewEngine(_cur.grffile, VEH_SHIP, engine + i);
		if (e == NULL) return CIR_INVALID_ID; // No engine could be allocated, so neither can any next vehicles

		EngineInfo *ei = &e->info;
		ShipVehicleInfo *svi = &e->u.ship;

		switch (prop) {
			case 0x08: { // Sprite ID
				uint8 spriteid = buf->ReadByte();

				/* ships have different custom id in the GRF file */
				if (spriteid == 0xFF) spriteid = 0xFD;

				if (spriteid < 0xFD) spriteid >>= 1;

				svi->image_index = spriteid;
				break;
			}

			case 0x09: // Refittable
				svi->old_refittable = (buf->ReadByte() != 0);
				break;

			case PROP_SHIP_COST_FACTOR: // 0x0A Cost factor
				svi->cost_factor = buf->ReadByte();
				break;

			case PROP_SHIP_SPEED: // 0x0B Speed (1 unit is 0.5 km-ish/h)
				svi->max_speed = buf->ReadByte();
				break;

			case 0x0C: { // Cargo type
				uint8 ctype = buf->ReadByte();

				if (ctype == 0xFF) {
					/* 0xFF is specified as 'use first refittable' */
					ei->cargo_type = CT_INVALID;
				} else if (_cur.grffile->grf_version >= 8) {
					/* Use translated cargo. Might result in CT_INVALID (first refittable), if cargo is not defined. */
					ei->cargo_type = GetCargoTranslation(ctype, _cur.grffile);
				} else if (ctype < NUM_CARGO && HasBit(_cargo_mask, ctype)) {
					/* Use untranslated cargo. */
					ei->cargo_type = ctype;
				} else {
					ei->cargo_type = CT_INVALID;
					grfmsg(2, "RailVehicleChangeInfo: Invalid cargo type %d, using first refittable", ctype);
				}
				break;
			}

			case PROP_SHIP_CARGO_CAPACITY: // 0x0D Cargo capacity
				svi->capacity = buf->ReadWord();
				break;

			case PROP_SHIP_RUNNING_COST_FACTOR: // 0x0F Running cost factor
				svi->running_cost = buf->ReadByte();
				break;

			case 0x10: // SFX
				svi->sfx = buf->ReadByte();
				break;

			case 0x11: // Cargos available for refitting
				ei->refit_mask = buf->ReadDWord();
				_gted[e->index].refitmask_valid = true;
				_gted[e->index].refitmask_grf = _cur.grffile;
				break;

			case 0x12: // Callback mask
				ei->callback_mask = buf->ReadByte();
				break;

			case 0x13: // Refit cost
				ei->refit_cost = buf->ReadByte();
				break;

			case 0x14: // Ocean speed fraction
				svi->ocean_speed_frac = buf->ReadByte();
				break;

			case 0x15: // Canal speed fraction
				svi->canal_speed_frac = buf->ReadByte();
				break;

			case 0x16: // Retire vehicle early
				ei->retire_early = buf->ReadByte();
				break;

			case 0x17: // Miscellaneous flags
				ei->misc_flags = buf->ReadByte();
				_loaded_newgrf_features.has_2CC |= HasBit(ei->misc_flags, EF_USES_2CC);
				break;

			case 0x18: // Cargo classes allowed
				_gted[e->index].cargo_allowed = buf->ReadWord();
				_gted[e->index].refitmask_valid = true;
				break;

			case 0x19: // Cargo classes disallowed
				_gted[e->index].cargo_disallowed = buf->ReadWord();
				_gted[e->index].refitmask_valid = true;
				break;

			case 0x1A: // Long format introduction date (days since year 0)
				ei->base_intro = buf->ReadDWord();
				break;

			case 0x1B: // Alter purchase list sort order
				AlterVehicleListOrder(e->index, buf->ReadExtendedByte());
				break;

			case 0x1C: // Visual effect
				svi->visual_effect = buf->ReadByte();
				/* Avoid accidentally setting visual_effect to the default value
				 * Since bit 6 (disable effects) is set anyways, we can safely erase some bits. */
				if (svi->visual_effect == VE_DEFAULT) {
					assert(HasBit(svi->visual_effect, VE_DISABLE_EFFECT));
					SB(svi->visual_effect, VE_TYPE_START, VE_TYPE_COUNT, 0);
				}
				break;

			case PROP_SHIP_CARGO_AGE_PERIOD: // 0x1D Cargo aging period
				ei->cargo_age_period = buf->ReadWord();
				break;

			case 0x1E:   // CTT refit include list
			case 0x1F: { // CTT refit exclude list
				uint8 count = buf->ReadByte();
				while (count--) {
					CargoID ctype = GetCargoTranslation(buf->ReadByte(), _cur.grffile);
					if (ctype == CT_INVALID) continue;
					SetBit(prop == 0x1E ? _gted[e->index].ctt_include_mask : _gted[e->index].ctt_exclude_mask, ctype);
				}
				_gted[e->index].refitmask_valid = true;
				break;
			}

			default:
				ret = CommonVehicleChangeInfo(ei, prop, buf);
				break;
		}
	}

	return ret;
}

/**
 * Define properties for aircraft
 * @param engine Local ID of the aircraft.
 * @param numinfo Number of subsequent IDs to change the property for.
 * @param prop The property to change.
 * @param buf The property value.
 * @return ChangeInfoResult.
 */
static ChangeInfoResult AircraftVehicleChangeInfo(uint engine, int numinfo, int prop, ByteReader *buf)
{
	ChangeInfoResult ret = CIR_SUCCESS;

	for (int i = 0; i < numinfo; i++) {
		Engine *e = GetNewEngine(_cur.grffile, VEH_AIRCRAFT, engine + i);
		if (e == NULL) return CIR_INVALID_ID; // No engine could be allocated, so neither can any next vehicles

		EngineInfo *ei = &e->info;
		AircraftVehicleInfo *avi = &e->u.air;

		switch (prop) {
			case 0x08: { // Sprite ID
				uint8 spriteid = buf->ReadByte();

				/* aircraft have different custom id in the GRF file */
				if (spriteid == 0xFF) spriteid = 0xFD;

				if (spriteid < 0xFD) spriteid >>= 1;

				avi->image_index = spriteid;
				break;
			}

			case 0x09: // Helicopter
				if (buf->ReadByte() == 0) {
					avi->subtype = AIR_HELI;
				} else {
					SB(avi->subtype, 0, 1, 1); // AIR_CTOL
				}
				break;

			case 0x0A: // Large
				SB(avi->subtype, 1, 1, (buf->ReadByte() != 0 ? 1 : 0)); // AIR_FAST
				break;

			case PROP_AIRCRAFT_COST_FACTOR: // 0x0B Cost factor
				avi->cost_factor = buf->ReadByte();
				break;

			case PROP_AIRCRAFT_SPEED: // 0x0C Speed (1 unit is 8 mph, we translate to 1 unit is 1 km-ish/h)
				avi->max_speed = (buf->ReadByte() * 128) / 10;
				break;

			case 0x0D: // Acceleration
				avi->acceleration = (buf->ReadByte() * 128) / 10;
				break;

			case PROP_AIRCRAFT_RUNNING_COST_FACTOR: // 0x0E Running cost factor
				avi->running_cost = buf->ReadByte();
				break;

			case PROP_AIRCRAFT_PASSENGER_CAPACITY: // 0x0F Passenger capacity
				avi->passenger_capacity = buf->ReadWord();
				break;

			case PROP_AIRCRAFT_MAIL_CAPACITY: // 0x11 Mail capacity
				avi->mail_capacity = buf->ReadByte();
				break;

			case 0x12: // SFX
				avi->sfx = buf->ReadByte();
				break;

			case 0x13: // Cargos available for refitting
				ei->refit_mask = buf->ReadDWord();
				_gted[e->index].refitmask_valid = true;
				_gted[e->index].refitmask_grf = _cur.grffile;
				break;

			case 0x14: // Callback mask
				ei->callback_mask = buf->ReadByte();
				break;

			case 0x15: // Refit cost
				ei->refit_cost = buf->ReadByte();
				break;

			case 0x16: // Retire vehicle early
				ei->retire_early = buf->ReadByte();
				break;

			case 0x17: // Miscellaneous flags
				ei->misc_flags = buf->ReadByte();
				_loaded_newgrf_features.has_2CC |= HasBit(ei->misc_flags, EF_USES_2CC);
				break;

			case 0x18: // Cargo classes allowed
				_gted[e->index].cargo_allowed = buf->ReadWord();
				_gted[e->index].refitmask_valid = true;
				break;

			case 0x19: // Cargo classes disallowed
				_gted[e->index].cargo_disallowed = buf->ReadWord();
				_gted[e->index].refitmask_valid = true;
				break;

			case 0x1A: // Long format introduction date (days since year 0)
				ei->base_intro = buf->ReadDWord();
				break;

			case 0x1B: // Alter purchase list sort order
				AlterVehicleListOrder(e->index, buf->ReadExtendedByte());
				break;

			case PROP_AIRCRAFT_CARGO_AGE_PERIOD: // 0x1C Cargo aging period
				ei->cargo_age_period = buf->ReadWord();
				break;

			case 0x1D:   // CTT refit include list
			case 0x1E: { // CTT refit exclude list
				uint8 count = buf->ReadByte();
				while (count--) {
					CargoID ctype = GetCargoTranslation(buf->ReadByte(), _cur.grffile);
					if (ctype == CT_INVALID) continue;
					SetBit(prop == 0x1D ? _gted[e->index].ctt_include_mask : _gted[e->index].ctt_exclude_mask, ctype);
				}
				_gted[e->index].refitmask_valid = true;
				break;
			}

			case PROP_AIRCRAFT_RANGE: // 0x1F Max aircraft range
				avi->max_range = buf->ReadWord();
				break;

			default:
				ret = CommonVehicleChangeInfo(ei, prop, buf);
				break;
		}
	}

	return ret;
}

/**
 * Define properties for stations
 * @param stdid StationID of the first station tile.
 * @param numinfo Number of subsequent station tiles to change the property for.
 * @param prop The property to change.
 * @param buf The property value.
 * @return ChangeInfoResult.
 */
static ChangeInfoResult StationChangeInfo(uint stid, int numinfo, int prop, ByteReader *buf)
{
	ChangeInfoResult ret = CIR_SUCCESS;

	if (stid + numinfo > MAX_STATIONS) {
		grfmsg(1, "StationChangeInfo: Station %u is invalid, max %u, ignoring", stid + numinfo, MAX_STATIONS);
		return CIR_INVALID_ID;
	}

	/* Allocate station specs if necessary */
	if (_cur.grffile->stations == NULL) _cur.grffile->stations = CallocT<StationSpec*>(MAX_STATIONS);

	for (int i = 0; i < numinfo; i++) {
		StationSpec *statspec = _cur.grffile->stations[stid + i];

		/* Check that the station we are modifying is defined. */
		if (statspec == NULL && prop != 0x08) {
			grfmsg(2, "StationChangeInfo: Attempt to modify undefined station %u, ignoring", stid + i);
			return CIR_INVALID_ID;
		}

		switch (prop) {
			case 0x08: { // Class ID
				StationSpec **spec = &_cur.grffile->stations[stid + i];

				/* Property 0x08 is special; it is where the station is allocated */
				if (*spec == NULL) *spec = CallocT<StationSpec>(1);

				/* Swap classid because we read it in BE meaning WAYP or DFLT */
				uint32 classid = buf->ReadDWord();
				(*spec)->cls_id = StationClass::Allocate(BSWAP32(classid));
				break;
			}

			case 0x09: // Define sprite layout
				statspec->tiles = buf->ReadExtendedByte();
				delete[] statspec->renderdata; // delete earlier loaded stuff
				statspec->renderdata = new NewGRFSpriteLayout[statspec->tiles];

				for (uint t = 0; t < statspec->tiles; t++) {
					NewGRFSpriteLayout *dts = &statspec->renderdata[t];
					dts->consistent_max_offset = UINT16_MAX; // Spritesets are unknown, so no limit.

					if (buf->HasData(4) && *(uint32*)buf->Data() == 0) {
						buf->Skip(4);
						extern const DrawTileSprites _station_display_datas_rail[8];
						dts->Clone(&_station_display_datas_rail[t % 8]);
						continue;
					}

					ReadSpriteLayoutSprite(buf, false, false, false, GSF_STATIONS, &dts->ground);
					/* On error, bail out immediately. Temporary GRF data was already freed */
					if (_cur.skip_sprites < 0) return CIR_DISABLED;

					static SmallVector<DrawTileSeqStruct, 8> tmp_layout;
					tmp_layout.Clear();
					for (;;) {
						/* no relative bounding box support */
						DrawTileSeqStruct *dtss = tmp_layout.Append();
						MemSetT(dtss, 0);

						dtss->delta_x = buf->ReadByte();
						if (dtss->IsTerminator()) break;
						dtss->delta_y = buf->ReadByte();
						dtss->delta_z = buf->ReadByte();
						dtss->size_x = buf->ReadByte();
						dtss->size_y = buf->ReadByte();
						dtss->size_z = buf->ReadByte();

						ReadSpriteLayoutSprite(buf, false, true, false, GSF_STATIONS, &dtss->image);
						/* On error, bail out immediately. Temporary GRF data was already freed */
						if (_cur.skip_sprites < 0) return CIR_DISABLED;
					}
					dts->Clone(tmp_layout.Begin());
				}
				break;

			case 0x0A: { // Copy sprite layout
				byte srcid = buf->ReadByte();
				const StationSpec *srcstatspec = _cur.grffile->stations[srcid];

				if (srcstatspec == NULL) {
					grfmsg(1, "StationChangeInfo: Station %u is not defined, cannot copy sprite layout to %u.", srcid, stid + i);
					continue;
				}

				delete[] statspec->renderdata; // delete earlier loaded stuff

				statspec->tiles = srcstatspec->tiles;
				statspec->renderdata = new NewGRFSpriteLayout[statspec->tiles];
				for (uint t = 0; t < statspec->tiles; t++) {
					statspec->renderdata[t].Clone(&srcstatspec->renderdata[t]);
				}
				break;
			}

			case 0x0B: // Callback mask
				statspec->callback_mask = buf->ReadByte();
				break;

			case 0x0C: // Disallowed number of platforms
				statspec->disallowed_platforms = buf->ReadByte();
				break;

			case 0x0D: // Disallowed platform lengths
				statspec->disallowed_lengths = buf->ReadByte();
				break;

			case 0x0E: // Define custom layout
				statspec->copied_layouts = false;

				while (buf->HasData()) {
					byte length = buf->ReadByte();
					byte number = buf->ReadByte();
					StationLayout layout;
					uint l, p;

					if (length == 0 || number == 0) break;

					if (length > statspec->lengths) {
						statspec->platforms = ReallocT(statspec->platforms, length);
						memset(statspec->platforms + statspec->lengths, 0, length - statspec->lengths);

						statspec->layouts = ReallocT(statspec->layouts, length);
						memset(statspec->layouts + statspec->lengths, 0,
						       (length - statspec->lengths) * sizeof(*statspec->layouts));

						statspec->lengths = length;
					}
					l = length - 1; // index is zero-based

					if (number > statspec->platforms[l]) {
						statspec->layouts[l] = ReallocT(statspec->layouts[l], number);
						/* We expect NULL being 0 here, but C99 guarantees that. */
						memset(statspec->layouts[l] + statspec->platforms[l], 0,
						       (number - statspec->platforms[l]) * sizeof(**statspec->layouts));

						statspec->platforms[l] = number;
					}

					p = 0;
					layout = MallocT<byte>(length * number);
					try {
						for (l = 0; l < length; l++) {
							for (p = 0; p < number; p++) {
								layout[l * number + p] = buf->ReadByte();
							}
						}
					} catch (...) {
						free(layout);
						throw;
					}

					l--;
					p--;
					free(statspec->layouts[l][p]);
					statspec->layouts[l][p] = layout;
				}
				break;

			case 0x0F: { // Copy custom layout
				byte srcid = buf->ReadByte();
				const StationSpec *srcstatspec = _cur.grffile->stations[srcid];

				if (srcstatspec == NULL) {
					grfmsg(1, "StationChangeInfo: Station %u is not defined, cannot copy tile layout to %u.", srcid, stid + i);
					continue;
				}

				statspec->lengths   = srcstatspec->lengths;
				statspec->platforms = srcstatspec->platforms;
				statspec->layouts   = srcstatspec->layouts;
				statspec->copied_layouts = true;
				break;
			}

			case 0x10: // Little/lots cargo threshold
				statspec->cargo_threshold = buf->ReadWord();
				break;

			case 0x11: // Pylon placement
				statspec->pylons = buf->ReadByte();
				break;

			case 0x12: // Cargo types for random triggers
				statspec->cargo_triggers = buf->ReadDWord();
				break;

			case 0x13: // General flags
				statspec->flags = buf->ReadByte();
				break;

			case 0x14: // Overhead wire placement
				statspec->wires = buf->ReadByte();
				break;

			case 0x15: // Blocked tiles
				statspec->blocked = buf->ReadByte();
				break;

			case 0x16: // Animation info
				statspec->animation.frames = buf->ReadByte();
				statspec->animation.status = buf->ReadByte();
				break;

			case 0x17: // Animation speed
				statspec->animation.speed = buf->ReadByte();
				break;

			case 0x18: // Animation triggers
				statspec->animation.triggers = buf->ReadWord();
				break;

			case 0x1A: // Advanced sprite layout
				statspec->tiles = buf->ReadExtendedByte();
				delete[] statspec->renderdata; // delete earlier loaded stuff
				statspec->renderdata = new NewGRFSpriteLayout[statspec->tiles];

				for (uint t = 0; t < statspec->tiles; t++) {
					NewGRFSpriteLayout *dts = &statspec->renderdata[t];
					uint num_building_sprites = buf->ReadByte();
					/* On error, bail out immediately. Temporary GRF data was already freed */
					if (ReadSpriteLayout(buf, num_building_sprites, false, GSF_STATIONS, true, false, dts)) return CIR_DISABLED;
				}
				break;

			default:
				ret = CIR_UNKNOWN;
				break;
		}
	}

	return ret;
}

/**
 * Define properties for water features
 * @param id Type of the first water feature.
 * @param numinfo Number of subsequent water feature ids to change the property for.
 * @param prop The property to change.
 * @param buf The property value.
 * @return ChangeInfoResult.
 */
static ChangeInfoResult CanalChangeInfo(uint id, int numinfo, int prop, ByteReader *buf)
{
	ChangeInfoResult ret = CIR_SUCCESS;

	if (id + numinfo > CF_END) {
		grfmsg(1, "CanalChangeInfo: Canal feature %u is invalid, max %u, ignoreing", id + numinfo, CF_END);
		return CIR_INVALID_ID;
	}

	for (int i = 0; i < numinfo; i++) {
		CanalProperties *cp = &_cur.grffile->canal_local_properties[id + i];

		switch (prop) {
			case 0x08:
				cp->callback_mask = buf->ReadByte();
				break;

			case 0x09:
				cp->flags = buf->ReadByte();
				break;

			default:
				ret = CIR_UNKNOWN;
				break;
		}
	}

	return ret;
}

/**
 * Define properties for bridges
 * @param brid BridgeID of the bridge.
 * @param numinfo Number of subsequent bridgeIDs to change the property for.
 * @param prop The property to change.
 * @param buf The property value.
 * @return ChangeInfoResult.
 */
static ChangeInfoResult BridgeChangeInfo(uint brid, int numinfo, int prop, ByteReader *buf)
{
	ChangeInfoResult ret = CIR_SUCCESS;

	if (brid + numinfo > MAX_BRIDGES) {
		grfmsg(1, "BridgeChangeInfo: Bridge %u is invalid, max %u, ignoring", brid + numinfo, MAX_BRIDGES);
		return CIR_INVALID_ID;
	}

	for (int i = 0; i < numinfo; i++) {
		BridgeSpec *bridge = &_bridge[brid + i];

		switch (prop) {
			case 0x08: { // Year of availability
				/* We treat '0' as always available */
				byte year = buf->ReadByte();
				bridge->avail_year = (year > 0 ? ORIGINAL_BASE_YEAR + year : 0);
				break;
			}

			case 0x09: // Minimum length
				bridge->min_length = buf->ReadByte();
				break;

			case 0x0A: // Maximum length
				bridge->max_length = buf->ReadByte();
				if (bridge->max_length > 16) bridge->max_length = 0xFFFF;
				break;

			case 0x0B: // Cost factor
				bridge->price = buf->ReadByte();
				break;

			case 0x0C: // Maximum speed
				bridge->speed = buf->ReadWord();
				break;

			case 0x0D: { // Bridge sprite tables
				byte tableid = buf->ReadByte();
				byte numtables = buf->ReadByte();

				if (bridge->sprite_table == NULL) {
					/* Allocate memory for sprite table pointers and zero out */
					bridge->sprite_table = CallocT<PalSpriteID*>(7);
				}

				for (; numtables-- != 0; tableid++) {
					if (tableid >= 7) { // skip invalid data
						grfmsg(1, "BridgeChangeInfo: Table %d >= 7, skipping", tableid);
						for (byte sprite = 0; sprite < 32; sprite++) buf->ReadDWord();
						continue;
					}

					if (bridge->sprite_table[tableid] == NULL) {
						bridge->sprite_table[tableid] = MallocT<PalSpriteID>(32);
					}

					for (byte sprite = 0; sprite < 32; sprite++) {
						SpriteID image = buf->ReadWord();
						PaletteID pal  = buf->ReadWord();

						bridge->sprite_table[tableid][sprite].sprite = image;
						bridge->sprite_table[tableid][sprite].pal    = pal;

						MapSpriteMappingRecolour(&bridge->sprite_table[tableid][sprite]);
					}
				}
				break;
			}

			case 0x0E: // Flags; bit 0 - disable far pillars
				bridge->flags = buf->ReadByte();
				break;

			case 0x0F: // Long format year of availability (year since year 0)
				bridge->avail_year = Clamp(buf->ReadDWord(), MIN_YEAR, MAX_YEAR);
				break;

			case 0x10: { // purchase string
				StringID newone = GetGRFStringID(_cur.grffile->grfid, buf->ReadWord());
				if (newone != STR_UNDEFINED) bridge->material = newone;
				break;
			}

			case 0x11: // description of bridge with rails or roads
			case 0x12: {
				StringID newone = GetGRFStringID(_cur.grffile->grfid, buf->ReadWord());
				if (newone != STR_UNDEFINED) bridge->transport_name[prop - 0x11] = newone;
				break;
			}

			case 0x13: // 16 bits cost multiplier
				bridge->price = buf->ReadWord();
				break;

			default:
				ret = CIR_UNKNOWN;
				break;
		}
	}

	return ret;
}

/**
 * Ignore a house property
 * @param prop Property to read.
 * @param buf Property value.
 * @return ChangeInfoResult.
 */
static ChangeInfoResult IgnoreTownHouseProperty(int prop, ByteReader *buf)
{
	ChangeInfoResult ret = CIR_SUCCESS;

	switch (prop) {
		case 0x09:
		case 0x0B:
		case 0x0C:
		case 0x0D:
		case 0x0E:
		case 0x0F:
		case 0x11:
		case 0x14:
		case 0x15:
		case 0x16:
		case 0x18:
		case 0x19:
		case 0x1A:
		case 0x1B:
		case 0x1C:
		case 0x1D:
		case 0x1F:
			buf->ReadByte();
			break;

		case 0x0A:
		case 0x10:
		case 0x12:
		case 0x13:
		case 0x21:
		case 0x22:
			buf->ReadWord();
			break;

		case 0x1E:
			buf->ReadDWord();
			break;

		case 0x17:
			for (uint j = 0; j < 4; j++) buf->ReadByte();
			break;

		case 0x20: {
			byte count = buf->ReadByte();
			for (byte j = 0; j < count; j++) buf->ReadByte();
			break;
		}

		default:
			ret = CIR_UNKNOWN;
			break;
	}
	return ret;
}

/**
 * Define properties for houses
 * @param hid HouseID of the house.
 * @param numinfo Number of subsequent houseIDs to change the property for.
 * @param prop The property to change.
 * @param buf The property value.
 * @return ChangeInfoResult.
 */
static ChangeInfoResult TownHouseChangeInfo(uint hid, int numinfo, int prop, ByteReader *buf)
{
	ChangeInfoResult ret = CIR_SUCCESS;

	if (hid + numinfo > HOUSE_MAX) {
		grfmsg(1, "TownHouseChangeInfo: Too many houses loaded (%u), max (%u). Ignoring.", hid + numinfo, HOUSE_MAX);
		return CIR_INVALID_ID;
	}

	/* Allocate house specs if they haven't been allocated already. */
	if (_cur.grffile->housespec == NULL) {
		_cur.grffile->housespec = CallocT<HouseSpec*>(HOUSE_MAX);
	}

	for (int i = 0; i < numinfo; i++) {
		HouseSpec *housespec = _cur.grffile->housespec[hid + i];

		if (prop != 0x08 && housespec == NULL) {
			/* If the house property 08 is not yet set, ignore this property */
			ChangeInfoResult cir = IgnoreTownHouseProperty(prop, buf);
			if (cir > ret) ret = cir;
			continue;
		}

		switch (prop) {
			case 0x08: { // Substitute building type, and definition of a new house
				HouseSpec **house = &_cur.grffile->housespec[hid + i];
				byte subs_id = buf->ReadByte();

				if (subs_id == 0xFF) {
					/* Instead of defining a new house, a substitute house id
					 * of 0xFF disables the old house with the current id. */
					HouseSpec::Get(hid + i)->enabled = false;
					continue;
				} else if (subs_id >= NEW_HOUSE_OFFSET) {
					/* The substitute id must be one of the original houses. */
					grfmsg(2, "TownHouseChangeInfo: Attempt to use new house %u as substitute house for %u. Ignoring.", subs_id, hid + i);
					continue;
				}

				/* Allocate space for this house. */
				if (*house == NULL) *house = CallocT<HouseSpec>(1);

				housespec = *house;

				MemCpyT(housespec, HouseSpec::Get(subs_id));

				housespec->enabled = true;
				housespec->grf_prop.local_id = hid + i;
				housespec->grf_prop.subst_id = subs_id;
				housespec->grf_prop.grffile = _cur.grffile;
				housespec->random_colour[0] = 0x04;  // those 4 random colours are the base colour
				housespec->random_colour[1] = 0x08;  // for all new houses
				housespec->random_colour[2] = 0x0C;  // they stand for red, blue, orange and green
				housespec->random_colour[3] = 0x06;

				/* Make sure that the third cargo type is valid in this
				 * climate. This can cause problems when copying the properties
				 * of a house that accepts food, where the new house is valid
				 * in the temperate climate. */
				if (!CargoSpec::Get(housespec->accepts_cargo[2])->IsValid()) {
					housespec->cargo_acceptance[2] = 0;
				}

				_loaded_newgrf_features.has_newhouses = true;
				break;
			}

			case 0x09: // Building flags
				housespec->building_flags = (BuildingFlags)buf->ReadByte();
				break;

			case 0x0A: { // Availability years
				uint16 years = buf->ReadWord();
				housespec->min_year = GB(years, 0, 8) > 150 ? MAX_YEAR : ORIGINAL_BASE_YEAR + GB(years, 0, 8);
				housespec->max_year = GB(years, 8, 8) > 150 ? MAX_YEAR : ORIGINAL_BASE_YEAR + GB(years, 8, 8);
				break;
			}

			case 0x0B: // Population
				housespec->population = buf->ReadByte();
				break;

			case 0x0C: // Mail generation multiplier
				housespec->mail_generation = buf->ReadByte();
				break;

			case 0x0D: // Passenger acceptance
			case 0x0E: // Mail acceptance
				housespec->cargo_acceptance[prop - 0x0D] = buf->ReadByte();
				break;

			case 0x0F: { // Goods/candy, food/fizzy drinks acceptance
				int8 goods = buf->ReadByte();

				/* If value of goods is negative, it means in fact food or, if in toyland, fizzy_drink acceptance.
				 * Else, we have "standard" 3rd cargo type, goods or candy, for toyland once more */
				CargoID cid = (goods >= 0) ? ((_settings_game.game_creation.landscape == LT_TOYLAND) ? CT_CANDY : CT_GOODS) :
						((_settings_game.game_creation.landscape == LT_TOYLAND) ? CT_FIZZY_DRINKS : CT_FOOD);

				/* Make sure the cargo type is valid in this climate. */
				if (!CargoSpec::Get(cid)->IsValid()) goods = 0;

				housespec->accepts_cargo[2] = cid;
				housespec->cargo_acceptance[2] = abs(goods); // but we do need positive value here
				break;
			}

			case 0x10: // Local authority rating decrease on removal
				housespec->remove_rating_decrease = buf->ReadWord();
				break;

			case 0x11: // Removal cost multiplier
				housespec->removal_cost = buf->ReadByte();
				break;

			case 0x12: // Building name ID
				housespec->building_name = buf->ReadWord();
				_string_to_grf_mapping[&housespec->building_name] = _cur.grffile->grfid;
				break;

			case 0x13: // Building availability mask
				housespec->building_availability = (HouseZones)buf->ReadWord();
				break;

			case 0x14: // House callback mask
				housespec->callback_mask |= buf->ReadByte();
				break;

			case 0x15: { // House override byte
				byte override = buf->ReadByte();

				/* The house being overridden must be an original house. */
				if (override >= NEW_HOUSE_OFFSET) {
					grfmsg(2, "TownHouseChangeInfo: Attempt to override new house %u with house id %u. Ignoring.", override, hid + i);
					continue;
				}

				_house_mngr.Add(hid + i, _cur.grffile->grfid, override);
				break;
			}

			case 0x16: // Periodic refresh multiplier
				housespec->processing_time = min(buf->ReadByte(), 63);
				break;

			case 0x17: // Four random colours to use
				for (uint j = 0; j < 4; j++) housespec->random_colour[j] = buf->ReadByte();
				break;

			case 0x18: // Relative probability of appearing
				housespec->probability = buf->ReadByte();
				break;

			case 0x19: // Extra flags
				housespec->extra_flags = (HouseExtraFlags)buf->ReadByte();
				break;

			case 0x1A: // Animation frames
				housespec->animation.frames = buf->ReadByte();
				housespec->animation.status = GB(housespec->animation.frames, 7, 1);
				SB(housespec->animation.frames, 7, 1, 0);
				break;

			case 0x1B: // Animation speed
				housespec->animation.speed = Clamp(buf->ReadByte(), 2, 16);
				break;

			case 0x1C: // Class of the building type
				housespec->class_id = AllocateHouseClassID(buf->ReadByte(), _cur.grffile->grfid);
				break;

			case 0x1D: // Callback mask part 2
				housespec->callback_mask |= (buf->ReadByte() << 8);
				break;

			case 0x1E: { // Accepted cargo types
				uint32 cargotypes = buf->ReadDWord();

				/* Check if the cargo types should not be changed */
				if (cargotypes == 0xFFFFFFFF) break;

				for (uint j = 0; j < 3; j++) {
					/* Get the cargo number from the 'list' */
					uint8 cargo_part = GB(cargotypes, 8 * j, 8);
					CargoID cargo = GetCargoTranslation(cargo_part, _cur.grffile);

					if (cargo == CT_INVALID) {
						/* Disable acceptance of invalid cargo type */
						housespec->cargo_acceptance[j] = 0;
					} else {
						housespec->accepts_cargo[j] = cargo;
					}
				}
				break;
			}

			case 0x1F: // Minimum life span
				housespec->minimum_life = buf->ReadByte();
				break;

			case 0x20: { // Cargo acceptance watch list
				byte count = buf->ReadByte();
				for (byte j = 0; j < count; j++) {
					CargoID cargo = GetCargoTranslation(buf->ReadByte(), _cur.grffile);
					if (cargo != CT_INVALID) SetBit(housespec->watched_cargoes, cargo);
				}
				break;
			}

			case 0x21: // long introduction year
				housespec->min_year = buf->ReadWord();
				break;

			case 0x22: // long maximum year
				housespec->max_year = buf->ReadWord();
				break;

			default:
				ret = CIR_UNKNOWN;
				break;
		}
	}

	return ret;
}

/**
 * Get the language map associated with a given NewGRF and language.
 * @param grfid       The NewGRF to get the map for.
 * @param language_id The (NewGRF) language ID to get the map for.
 * @return The LanguageMap, or NULL if it couldn't be found.
 */
/* static */ const LanguageMap *LanguageMap::GetLanguageMap(uint32 grfid, uint8 language_id)
{
	/* LanguageID "MAX_LANG", i.e. 7F is any. This language can't have a gender/case mapping, but has to be handled gracefully. */
	const GRFFile *grffile = GetFileByGRFID(grfid);
	return (grffile != NULL && grffile->language_map != NULL && language_id < MAX_LANG) ? &grffile->language_map[language_id] : NULL;
}

/**
 * Define properties for global variables
 * @param gvid ID of the global variable.
 * @param numinfo Number of subsequent IDs to change the property for.
 * @param prop The property to change.
 * @param buf The property value.
 * @return ChangeInfoResult.
 */
static ChangeInfoResult GlobalVarChangeInfo(uint gvid, int numinfo, int prop, ByteReader *buf)
{
	ChangeInfoResult ret = CIR_SUCCESS;

	for (int i = 0; i < numinfo; i++) {
		switch (prop) {
			case 0x08: { // Cost base factor
				int factor = buf->ReadByte();
				uint price = gvid + i;

				if (price < PR_END) {
					_cur.grffile->price_base_multipliers[price] = min<int>(factor - 8, MAX_PRICE_MODIFIER);
				} else {
					grfmsg(1, "GlobalVarChangeInfo: Price %d out of range, ignoring", price);
				}
				break;
			}

			case 0x09: // Cargo translation table
				/* This is loaded during the reservation stage, so just skip it here. */
				/* Each entry is 4 bytes. */
				buf->Skip(4);
				break;

			case 0x0A: { // Currency display names
				uint curidx = GetNewgrfCurrencyIdConverted(gvid + i);
				StringID newone = GetGRFStringID(_cur.grffile->grfid, buf->ReadWord());

				if ((newone != STR_UNDEFINED) && (curidx < NUM_CURRENCY)) {
					_currency_specs[curidx].name = newone;
				}
				break;
			}

			case 0x0B: { // Currency multipliers
				uint curidx = GetNewgrfCurrencyIdConverted(gvid + i);
				uint32 rate = buf->ReadDWord();

				if (curidx < NUM_CURRENCY) {
					/* TTDPatch uses a multiple of 1000 for its conversion calculations,
					 * which OTTD does not. For this reason, divide grf value by 1000,
					 * to be compatible */
					_currency_specs[curidx].rate = rate / 1000;
				} else {
					grfmsg(1, "GlobalVarChangeInfo: Currency multipliers %d out of range, ignoring", curidx);
				}
				break;
			}

			case 0x0C: { // Currency options
				uint curidx = GetNewgrfCurrencyIdConverted(gvid + i);
				uint16 options = buf->ReadWord();

				if (curidx < NUM_CURRENCY) {
					_currency_specs[curidx].separator[0] = GB(options, 0, 8);
					_currency_specs[curidx].separator[1] = '\0';
					/* By specifying only one bit, we prevent errors,
					 * since newgrf specs said that only 0 and 1 can be set for symbol_pos */
					_currency_specs[curidx].symbol_pos = GB(options, 8, 1);
				} else {
					grfmsg(1, "GlobalVarChangeInfo: Currency option %d out of range, ignoring", curidx);
				}
				break;
			}

			case 0x0D: { // Currency prefix symbol
				uint curidx = GetNewgrfCurrencyIdConverted(gvid + i);
				uint32 tempfix = buf->ReadDWord();

				if (curidx < NUM_CURRENCY) {
					memcpy(_currency_specs[curidx].prefix, &tempfix, 4);
					_currency_specs[curidx].prefix[4] = 0;
				} else {
					grfmsg(1, "GlobalVarChangeInfo: Currency symbol %d out of range, ignoring", curidx);
				}
				break;
			}

			case 0x0E: { // Currency suffix symbol
				uint curidx = GetNewgrfCurrencyIdConverted(gvid + i);
				uint32 tempfix = buf->ReadDWord();

				if (curidx < NUM_CURRENCY) {
					memcpy(&_currency_specs[curidx].suffix, &tempfix, 4);
					_currency_specs[curidx].suffix[4] = 0;
				} else {
					grfmsg(1, "GlobalVarChangeInfo: Currency symbol %d out of range, ignoring", curidx);
				}
				break;
			}

			case 0x0F: { //  Euro introduction dates
				uint curidx = GetNewgrfCurrencyIdConverted(gvid + i);
				Year year_euro = buf->ReadWord();

				if (curidx < NUM_CURRENCY) {
					_currency_specs[curidx].to_euro = year_euro;
				} else {
					grfmsg(1, "GlobalVarChangeInfo: Euro intro date %d out of range, ignoring", curidx);
				}
				break;
			}

			case 0x10: // Snow line height table
				if (numinfo > 1 || IsSnowLineSet()) {
					grfmsg(1, "GlobalVarChangeInfo: The snowline can only be set once (%d)", numinfo);
				} else if (buf->Remaining() < SNOW_LINE_MONTHS * SNOW_LINE_DAYS) {
					grfmsg(1, "GlobalVarChangeInfo: Not enough entries set in the snowline table (" PRINTF_SIZE ")", buf->Remaining());
				} else {
					byte table[SNOW_LINE_MONTHS][SNOW_LINE_DAYS];

					for (uint i = 0; i < SNOW_LINE_MONTHS; i++) {
						for (uint j = 0; j < SNOW_LINE_DAYS; j++) {
							table[i][j] = buf->ReadByte();
							if (_cur.grffile->grf_version >= 8) {
								if (table[i][j] != 0xFF) table[i][j] = table[i][j] * (1 + MAX_TILE_HEIGHT) / 256;
							} else {
								if (table[i][j] >= 128) {
									/* no snow */
									table[i][j] = 0xFF;
								} else {
									table[i][j] = table[i][j] * (1 + MAX_TILE_HEIGHT) / 128;
								}
							}
						}
					}
					SetSnowLine(table);
				}
				break;

			case 0x11: // GRF match for engine allocation
				/* This is loaded during the reservation stage, so just skip it here. */
				/* Each entry is 8 bytes. */
				buf->Skip(8);
				break;

			case 0x12: // Rail type translation table
				/* This is loaded during the reservation stage, so just skip it here. */
				/* Each entry is 4 bytes. */
				buf->Skip(4);
				break;

			case 0x13:   // Gender translation table
			case 0x14:   // Case translation table
			case 0x15: { // Plural form translation
				uint curidx = gvid + i; // The current index, i.e. language.
				const LanguageMetadata *lang = curidx < MAX_LANG ? GetLanguage(curidx) : NULL;
				if (lang == NULL) {
					grfmsg(1, "GlobalVarChangeInfo: Language %d is not known, ignoring", curidx);
					/* Skip over the data. */
					while (buf->ReadByte() != 0) {
						buf->ReadString();
					}
					break;
				}

				if (_cur.grffile->language_map == NULL) _cur.grffile->language_map = new LanguageMap[MAX_LANG];

				if (prop == 0x15) {
					uint plural_form = buf->ReadByte();
					if (plural_form >= LANGUAGE_MAX_PLURAL) {
						grfmsg(1, "GlobalVarChanceInfo: Plural form %d is out of range, ignoring", plural_form);
					} else {
						_cur.grffile->language_map[curidx].plural_form = plural_form;
					}
					break;
				}

				byte newgrf_id = buf->ReadByte(); // The NewGRF (custom) identifier.
				while (newgrf_id != 0) {
					const char *name = buf->ReadString(); // The name for the OpenTTD identifier.

					/* We'll just ignore the UTF8 identifier character. This is (fairly)
					 * safe as OpenTTD's strings gender/cases are usually in ASCII which
					 * is just a subset of UTF8, or they need the bigger UTF8 characters
					 * such as Cyrillic. Thus we will simply assume they're all UTF8. */
					WChar c;
					size_t len = Utf8Decode(&c, name);
					if (c == NFO_UTF8_IDENTIFIER) name += len;

					LanguageMap::Mapping map;
					map.newgrf_id = newgrf_id;
					if (prop == 0x13) {
						map.openttd_id = lang->GetGenderIndex(name);
						if (map.openttd_id >= MAX_NUM_GENDERS) {
							grfmsg(1, "GlobalVarChangeInfo: Gender name %s is not known, ignoring", name);
						} else {
							*_cur.grffile->language_map[curidx].gender_map.Append() = map;
						}
					} else {
						map.openttd_id = lang->GetCaseIndex(name);
						if (map.openttd_id >= MAX_NUM_CASES) {
							grfmsg(1, "GlobalVarChangeInfo: Case name %s is not known, ignoring", name);
						} else {
							*_cur.grffile->language_map[curidx].case_map.Append() = map;
						}
					}
					newgrf_id = buf->ReadByte();
				}
				break;
			}

			default:
				ret = CIR_UNKNOWN;
				break;
		}
	}

	return ret;
}

static ChangeInfoResult GlobalVarReserveInfo(uint gvid, int numinfo, int prop, ByteReader *buf)
{
	ChangeInfoResult ret = CIR_SUCCESS;

	for (int i = 0; i < numinfo; i++) {
		switch (prop) {
			case 0x08: // Cost base factor
			case 0x15: // Plural form translation
				buf->ReadByte();
				break;

			case 0x09: { // Cargo Translation Table
				if (i == 0) {
					if (gvid != 0) {
						grfmsg(1, "ReserveChangeInfo: Cargo translation table must start at zero");
						return CIR_INVALID_ID;
					}

					free(_cur.grffile->cargo_list);
					_cur.grffile->cargo_max = numinfo;
					_cur.grffile->cargo_list = MallocT<CargoLabel>(numinfo);
				}

				CargoLabel cl = buf->ReadDWord();
				_cur.grffile->cargo_list[i] = BSWAP32(cl);
				break;
			}

			case 0x0A: // Currency display names
			case 0x0C: // Currency options
			case 0x0F: // Euro introduction dates
				buf->ReadWord();
				break;

			case 0x0B: // Currency multipliers
			case 0x0D: // Currency prefix symbol
			case 0x0E: // Currency suffix symbol
				buf->ReadDWord();
				break;

			case 0x10: // Snow line height table
				buf->Skip(SNOW_LINE_MONTHS * SNOW_LINE_DAYS);
				break;

			case 0x11: { // GRF match for engine allocation
				uint32 s = buf->ReadDWord();
				uint32 t = buf->ReadDWord();
				SetNewGRFOverride(s, t);
				break;
			}

			case 0x12: { // Rail type translation table
				if (i == 0) {
					if (gvid != 0) {
						grfmsg(1, "ReserveChangeInfo: Rail type translation table must start at zero");
						return CIR_INVALID_ID;
					}

					free(_cur.grffile->railtype_list);
					_cur.grffile->railtype_max = numinfo;
					_cur.grffile->railtype_list = MallocT<RailTypeLabel>(numinfo);
				}

				RailTypeLabel rtl = buf->ReadDWord();
				_cur.grffile->railtype_list[i] = BSWAP32(rtl);
				break;
			}

			case 0x13: // Gender translation table
			case 0x14: // Case translation table
				while (buf->ReadByte() != 0) {
					buf->ReadString();
				}
				break;

			default:
				ret = CIR_UNKNOWN;
				break;
		}
	}

	return ret;
}


/**
 * Define properties for cargos
 * @param cid Local ID of the cargo.
 * @param numinfo Number of subsequent IDs to change the property for.
 * @param prop The property to change.
 * @param buf The property value.
 * @return ChangeInfoResult.
 */
static ChangeInfoResult CargoChangeInfo(uint cid, int numinfo, int prop, ByteReader *buf)
{
	ChangeInfoResult ret = CIR_SUCCESS;

	if (cid + numinfo > NUM_CARGO) {
		grfmsg(2, "CargoChangeInfo: Cargo type %d out of range (max %d)", cid + numinfo, NUM_CARGO - 1);
		return CIR_INVALID_ID;
	}

	for (int i = 0; i < numinfo; i++) {
		CargoSpec *cs = CargoSpec::Get(cid + i);

		switch (prop) {
			case 0x08: // Bit number of cargo
				cs->bitnum = buf->ReadByte();
				if (cs->IsValid()) {
					cs->grffile = _cur.grffile;
					SetBit(_cargo_mask, cid + i);
				} else {
					ClrBit(_cargo_mask, cid + i);
				}
				break;

			case 0x09: // String ID for cargo type name
				cs->name = buf->ReadWord();
				_string_to_grf_mapping[&cs->name] = _cur.grffile->grfid;
				break;

			case 0x0A: // String for 1 unit of cargo
				cs->name_single = buf->ReadWord();
				_string_to_grf_mapping[&cs->name_single] = _cur.grffile->grfid;
				break;

			case 0x0B: // String for singular quantity of cargo (e.g. 1 tonne of coal)
			case 0x1B: // String for cargo units
				/* String for units of cargo. This is different in OpenTTD
				 * (e.g. tonnes) to TTDPatch (e.g. {COMMA} tonne of coal).
				 * Property 1B is used to set OpenTTD's behaviour. */
				cs->units_volume = buf->ReadWord();
				_string_to_grf_mapping[&cs->units_volume] = _cur.grffile->grfid;
				break;

			case 0x0C: // String for plural quantity of cargo (e.g. 10 tonnes of coal)
			case 0x1C: // String for any amount of cargo
				/* Strings for an amount of cargo. This is different in OpenTTD
				 * (e.g. {WEIGHT} of coal) to TTDPatch (e.g. {COMMA} tonnes of coal).
				 * Property 1C is used to set OpenTTD's behaviour. */
				cs->quantifier = buf->ReadWord();
				_string_to_grf_mapping[&cs->quantifier] = _cur.grffile->grfid;
				break;

			case 0x0D: // String for two letter cargo abbreviation
				cs->abbrev = buf->ReadWord();
				_string_to_grf_mapping[&cs->abbrev] = _cur.grffile->grfid;
				break;

			case 0x0E: // Sprite ID for cargo icon
				cs->sprite = buf->ReadWord();
				break;

			case 0x0F: // Weight of one unit of cargo
				cs->weight = buf->ReadByte();
				break;

			case 0x10: // Used for payment calculation
				cs->transit_days[0] = buf->ReadByte();
				break;

			case 0x11: // Used for payment calculation
				cs->transit_days[1] = buf->ReadByte();
				break;

			case 0x12: // Base cargo price
				cs->initial_payment = buf->ReadDWord();
				break;

			case 0x13: // Colour for station rating bars
				cs->rating_colour = buf->ReadByte();
				break;

			case 0x14: // Colour for cargo graph
				cs->legend_colour = buf->ReadByte();
				break;

			case 0x15: // Freight status
				cs->is_freight = (buf->ReadByte() != 0);
				break;

			case 0x16: // Cargo classes
				cs->classes = buf->ReadWord();
				break;

			case 0x17: // Cargo label
				cs->label = buf->ReadDWord();
				cs->label = BSWAP32(cs->label);
				break;

			case 0x18: { // Town growth substitute type
				uint8 substitute_type = buf->ReadByte();

				switch (substitute_type) {
					case 0x00: cs->town_effect = TE_PASSENGERS; break;
					case 0x02: cs->town_effect = TE_MAIL; break;
					case 0x05: cs->town_effect = TE_GOODS; break;
					case 0x09: cs->town_effect = TE_WATER; break;
					case 0x0B: cs->town_effect = TE_FOOD; break;
					default:
						grfmsg(1, "CargoChangeInfo: Unknown town growth substitute value %d, setting to none.", substitute_type);
					case 0xFF: cs->town_effect = TE_NONE; break;
				}
				break;
			}

			case 0x19: // Town growth coefficient
				cs->multipliertowngrowth = buf->ReadWord();
				break;

			case 0x1A: // Bitmask of callbacks to use
				cs->callback_mask = buf->ReadByte();
				break;

			default:
				ret = CIR_UNKNOWN;
				break;
		}
	}

	return ret;
}


/**
 * Define properties for sound effects
 * @param sid Local ID of the sound.
 * @param numinfo Number of subsequent IDs to change the property for.
 * @param prop The property to change.
 * @param buf The property value.
 * @return ChangeInfoResult.
 */
static ChangeInfoResult SoundEffectChangeInfo(uint sid, int numinfo, int prop, ByteReader *buf)
{
	ChangeInfoResult ret = CIR_SUCCESS;

	if (_cur.grffile->sound_offset == 0) {
		grfmsg(1, "SoundEffectChangeInfo: No effects defined, skipping");
		return CIR_INVALID_ID;
	}

	if (sid + numinfo - ORIGINAL_SAMPLE_COUNT > _cur.grffile->num_sounds) {
		grfmsg(1, "SoundEffectChangeInfo: Attemting to change undefined sound effect (%u), max (%u). Ignoring.", sid + numinfo, ORIGINAL_SAMPLE_COUNT + _cur.grffile->num_sounds);
		return CIR_INVALID_ID;
	}

	for (int i = 0; i < numinfo; i++) {
		SoundEntry *sound = GetSound(sid + i + _cur.grffile->sound_offset - ORIGINAL_SAMPLE_COUNT);

		switch (prop) {
			case 0x08: // Relative volume
				sound->volume = buf->ReadByte();
				break;

			case 0x09: // Priority
				sound->priority = buf->ReadByte();
				break;

			case 0x0A: { // Override old sound
				SoundID orig_sound = buf->ReadByte();

				if (orig_sound >= ORIGINAL_SAMPLE_COUNT) {
					grfmsg(1, "SoundEffectChangeInfo: Original sound %d not defined (max %d)", orig_sound, ORIGINAL_SAMPLE_COUNT);
				} else {
					SoundEntry *old_sound = GetSound(orig_sound);

					/* Literally copy the data of the new sound over the original */
					*old_sound = *sound;
				}
				break;
			}

			default:
				ret = CIR_UNKNOWN;
				break;
		}
	}

	return ret;
}

/**
 * Ignore an industry tile property
 * @param prop The property to ignore.
 * @param buf The property value.
 * @return ChangeInfoResult.
 */
static ChangeInfoResult IgnoreIndustryTileProperty(int prop, ByteReader *buf)
{
	ChangeInfoResult ret = CIR_SUCCESS;

	switch (prop) {
		case 0x09:
		case 0x0D:
		case 0x0E:
		case 0x10:
		case 0x11:
		case 0x12:
			buf->ReadByte();
			break;

		case 0x0A:
		case 0x0B:
		case 0x0C:
		case 0x0F:
			buf->ReadWord();
			break;

		default:
			ret = CIR_UNKNOWN;
			break;
	}
	return ret;
}

/**
 * Define properties for industry tiles
 * @param indtid Local ID of the industry tile.
 * @param numinfo Number of subsequent industry tile IDs to change the property for.
 * @param prop The property to change.
 * @param buf The property value.
 * @return ChangeInfoResult.
 */
static ChangeInfoResult IndustrytilesChangeInfo(uint indtid, int numinfo, int prop, ByteReader *buf)
{
	ChangeInfoResult ret = CIR_SUCCESS;

	if (indtid + numinfo > NUM_INDUSTRYTILES) {
		grfmsg(1, "IndustryTilesChangeInfo: Too many industry tiles loaded (%u), max (%u). Ignoring.", indtid + numinfo, NUM_INDUSTRYTILES);
		return CIR_INVALID_ID;
	}

	/* Allocate industry tile specs if they haven't been allocated already. */
	if (_cur.grffile->indtspec == NULL) {
		_cur.grffile->indtspec = CallocT<IndustryTileSpec*>(NUM_INDUSTRYTILES);
	}

	for (int i = 0; i < numinfo; i++) {
		IndustryTileSpec *tsp = _cur.grffile->indtspec[indtid + i];

		if (prop != 0x08 && tsp == NULL) {
			ChangeInfoResult cir = IgnoreIndustryTileProperty(prop, buf);
			if (cir > ret) ret = cir;
			continue;
		}

		switch (prop) {
			case 0x08: { // Substitute industry tile type
				IndustryTileSpec **tilespec = &_cur.grffile->indtspec[indtid + i];
				byte subs_id = buf->ReadByte();

				if (subs_id >= NEW_INDUSTRYTILEOFFSET) {
					/* The substitute id must be one of the original industry tile. */
					grfmsg(2, "IndustryTilesChangeInfo: Attempt to use new industry tile %u as substitute industry tile for %u. Ignoring.", subs_id, indtid + i);
					continue;
				}

				/* Allocate space for this industry. */
				if (*tilespec == NULL) {
					*tilespec = CallocT<IndustryTileSpec>(1);
					tsp = *tilespec;

					memcpy(tsp, &_industry_tile_specs[subs_id], sizeof(_industry_tile_specs[subs_id]));
					tsp->enabled = true;

					/* A copied tile should not have the animation infos copied too.
					 * The anim_state should be left untouched, though
					 * It is up to the author to animate them himself */
					tsp->anim_production = INDUSTRYTILE_NOANIM;
					tsp->anim_next = INDUSTRYTILE_NOANIM;

					tsp->grf_prop.local_id = indtid + i;
					tsp->grf_prop.subst_id = subs_id;
					tsp->grf_prop.grffile = _cur.grffile;
					_industile_mngr.AddEntityID(indtid + i, _cur.grffile->grfid, subs_id); // pre-reserve the tile slot
				}
				break;
			}

			case 0x09: { // Industry tile override
				byte ovrid = buf->ReadByte();

				/* The industry being overridden must be an original industry. */
				if (ovrid >= NEW_INDUSTRYTILEOFFSET) {
					grfmsg(2, "IndustryTilesChangeInfo: Attempt to override new industry tile %u with industry tile id %u. Ignoring.", ovrid, indtid + i);
					continue;
				}

				_industile_mngr.Add(indtid + i, _cur.grffile->grfid, ovrid);
				break;
			}

			case 0x0A: // Tile acceptance
			case 0x0B:
			case 0x0C: {
				uint16 acctp = buf->ReadWord();
				tsp->accepts_cargo[prop - 0x0A] = GetCargoTranslation(GB(acctp, 0, 8), _cur.grffile);
				tsp->acceptance[prop - 0x0A] = GB(acctp, 8, 8);
				break;
			}

			case 0x0D: // Land shape flags
				tsp->slopes_refused = (Slope)buf->ReadByte();
				break;

			case 0x0E: // Callback mask
				tsp->callback_mask = buf->ReadByte();
				break;

			case 0x0F: // Animation information
				tsp->animation.frames = buf->ReadByte();
				tsp->animation.status = buf->ReadByte();
				break;

			case 0x10: // Animation speed
				tsp->animation.speed = buf->ReadByte();
				break;

			case 0x11: // Triggers for callback 25
				tsp->animation.triggers = buf->ReadByte();
				break;

			case 0x12: // Special flags
				tsp->special_flags = (IndustryTileSpecialFlags)buf->ReadByte();
				break;

			default:
				ret = CIR_UNKNOWN;
				break;
		}
	}

	return ret;
}

/**
 * Ignore an industry property
 * @param prop The property to ignore.
 * @param buf The property value.
 * @return ChangeInfoResult.
 */
static ChangeInfoResult IgnoreIndustryProperty(int prop, ByteReader *buf)
{
	ChangeInfoResult ret = CIR_SUCCESS;

	switch (prop) {
		case 0x09:
		case 0x0B:
		case 0x0F:
		case 0x12:
		case 0x13:
		case 0x14:
		case 0x17:
		case 0x18:
		case 0x19:
		case 0x21:
		case 0x22:
			buf->ReadByte();
			break;

		case 0x0C:
		case 0x0D:
		case 0x0E:
		case 0x10:
		case 0x1B:
		case 0x1F:
		case 0x24:
			buf->ReadWord();
			break;

		case 0x11:
		case 0x1A:
		case 0x1C:
		case 0x1D:
		case 0x1E:
		case 0x20:
		case 0x23:
			buf->ReadDWord();
			break;

		case 0x0A: {
			byte num_table = buf->ReadByte();
			for (byte j = 0; j < num_table; j++) {
				for (uint k = 0;; k++) {
					byte x = buf->ReadByte();
					if (x == 0xFE && k == 0) {
						buf->ReadByte();
						buf->ReadByte();
						break;
					}

					byte y = buf->ReadByte();
					if (x == 0 && y == 0x80) break;

					byte gfx = buf->ReadByte();
					if (gfx == 0xFE) buf->ReadWord();
				}
			}
			break;
		}

		case 0x16:
			for (byte j = 0; j < 3; j++) buf->ReadByte();
			break;

		case 0x15: {
			byte number_of_sounds = buf->ReadByte();
			for (uint8 j = 0; j < number_of_sounds; j++) {
				buf->ReadByte();
			}
			break;
		}

		default:
			ret = CIR_UNKNOWN;
			break;
	}
	return ret;
}

/**
 * Validate the industry layout; e.g. to prevent duplicate tiles.
 * @param layout The layout to check.
 * @param size The size of the layout.
 * @return True if the layout is deemed valid.
 */
static bool ValidateIndustryLayout(const IndustryTileTable *layout, int size)
{
	for (int i = 0; i < size - 1; i++) {
		for (int j = i + 1; j < size; j++) {
			if (layout[i].ti.x == layout[j].ti.x &&
					layout[i].ti.y == layout[j].ti.y) {
				return false;
			}
		}
	}
	return true;
}

/** Clean the tile table of the IndustrySpec if it's needed. */
static void CleanIndustryTileTable(IndustrySpec *ind)
{
	if (HasBit(ind->cleanup_flag, CLEAN_TILELAYOUT) && ind->table != NULL) {
		for (int j = 0; j < ind->num_table; j++) {
			/* remove the individual layouts */
			free(ind->table[j]);
		}
		/* remove the layouts pointers */
		free(ind->table);
		ind->table = NULL;
	}
}

/**
 * Define properties for industries
 * @param indid Local ID of the industry.
 * @param numinfo Number of subsequent industry IDs to change the property for.
 * @param prop The property to change.
 * @param buf The property value.
 * @return ChangeInfoResult.
 */
static ChangeInfoResult IndustriesChangeInfo(uint indid, int numinfo, int prop, ByteReader *buf)
{
	ChangeInfoResult ret = CIR_SUCCESS;

	if (indid + numinfo > NUM_INDUSTRYTYPES) {
		grfmsg(1, "IndustriesChangeInfo: Too many industries loaded (%u), max (%u). Ignoring.", indid + numinfo, NUM_INDUSTRYTYPES);
		return CIR_INVALID_ID;
	}

	grfmsg(1, "IndustriesChangeInfo: newid %u", indid);

	/* Allocate industry specs if they haven't been allocated already. */
	if (_cur.grffile->industryspec == NULL) {
		_cur.grffile->industryspec = CallocT<IndustrySpec*>(NUM_INDUSTRYTYPES);
	}

	for (int i = 0; i < numinfo; i++) {
		IndustrySpec *indsp = _cur.grffile->industryspec[indid + i];

		if (prop != 0x08 && indsp == NULL) {
			ChangeInfoResult cir = IgnoreIndustryProperty(prop, buf);
			if (cir > ret) ret = cir;
			continue;
		}

		switch (prop) {
			case 0x08: { // Substitute industry type
				IndustrySpec **indspec = &_cur.grffile->industryspec[indid + i];
				byte subs_id = buf->ReadByte();

				if (subs_id == 0xFF) {
					/* Instead of defining a new industry, a substitute industry id
					 * of 0xFF disables the old industry with the current id. */
					_industry_specs[indid + i].enabled = false;
					continue;
				} else if (subs_id >= NEW_INDUSTRYOFFSET) {
					/* The substitute id must be one of the original industry. */
					grfmsg(2, "_industry_specs: Attempt to use new industry %u as substitute industry for %u. Ignoring.", subs_id, indid + i);
					continue;
				}

				/* Allocate space for this industry.
				 * Only need to do it once. If ever it is called again, it should not
				 * do anything */
				if (*indspec == NULL) {
					*indspec = CallocT<IndustrySpec>(1);
					indsp = *indspec;

					memcpy(indsp, &_origin_industry_specs[subs_id], sizeof(_industry_specs[subs_id]));
					indsp->enabled = true;
					indsp->grf_prop.local_id = indid + i;
					indsp->grf_prop.subst_id = subs_id;
					indsp->grf_prop.grffile = _cur.grffile;
					/* If the grf industry needs to check its surounding upon creation, it should
					 * rely on callbacks, not on the original placement functions */
					indsp->check_proc = CHECK_NOTHING;
				}
				break;
			}

			case 0x09: { // Industry type override
				byte ovrid = buf->ReadByte();

				/* The industry being overridden must be an original industry. */
				if (ovrid >= NEW_INDUSTRYOFFSET) {
					grfmsg(2, "IndustriesChangeInfo: Attempt to override new industry %u with industry id %u. Ignoring.", ovrid, indid + i);
					continue;
				}
				indsp->grf_prop.override = ovrid;
				_industry_mngr.Add(indid + i, _cur.grffile->grfid, ovrid);
				break;
			}

			case 0x0A: { // Set industry layout(s)
				byte new_num_layouts = buf->ReadByte(); // Number of layaouts
				/* We read the total size in bytes, but we can't rely on the
				 * newgrf to provide a sane value. First assume the value is
				 * sane but later on we make sure we enlarge the array if the
				 * newgrf contains more data. Each tile uses either 3 or 5
				 * bytes, so to play it safe we assume 3. */
				uint32 def_num_tiles = buf->ReadDWord() / 3 + 1;
				IndustryTileTable **tile_table = CallocT<IndustryTileTable*>(new_num_layouts); // Table with tiles to compose an industry
				IndustryTileTable *itt = CallocT<IndustryTileTable>(def_num_tiles); // Temporary array to read the tile layouts from the GRF
				uint size;
				const IndustryTileTable *copy_from;

				try {
					for (byte j = 0; j < new_num_layouts; j++) {
						for (uint k = 0;; k++) {
							if (k >= def_num_tiles) {
								grfmsg(3, "IndustriesChangeInfo: Incorrect size for industry tile layout definition for industry %u.", indid);
								/* Size reported by newgrf was not big enough so enlarge the array. */
								def_num_tiles *= 2;
								itt = ReallocT<IndustryTileTable>(itt, def_num_tiles);
							}

							itt[k].ti.x = buf->ReadByte(); // Offsets from northermost tile

							if (itt[k].ti.x == 0xFE && k == 0) {
								/* This means we have to borrow the layout from an old industry */
								IndustryType type = buf->ReadByte();  // industry holding required layout
								byte laynbr = buf->ReadByte();        // layout number to borrow

								copy_from = _origin_industry_specs[type].table[laynbr];
								for (size = 1;; size++) {
									if (copy_from[size - 1].ti.x == -0x80 && copy_from[size - 1].ti.y == 0) break;
								}
								break;
							}

							itt[k].ti.y = buf->ReadByte(); // Or table definition finalisation

							if (itt[k].ti.x == 0 && itt[k].ti.y == 0x80) {
								/*  Not the same terminator.  The one we are using is rather
								 x = -80, y = x .  So, adjust it. */
								itt[k].ti.x = -0x80;
								itt[k].ti.y =  0;
								itt[k].gfx  =  0;

								size = k + 1;
								copy_from = itt;
								break;
							}

							itt[k].gfx = buf->ReadByte();

							if (itt[k].gfx == 0xFE) {
								/* Use a new tile from this GRF */
								int local_tile_id = buf->ReadWord();

								/* Read the ID from the _industile_mngr. */
								int tempid = _industile_mngr.GetID(local_tile_id, _cur.grffile->grfid);

								if (tempid == INVALID_INDUSTRYTILE) {
									grfmsg(2, "IndustriesChangeInfo: Attempt to use industry tile %u with industry id %u, not yet defined. Ignoring.", local_tile_id, indid);
								} else {
									/* Declared as been valid, can be used */
									itt[k].gfx = tempid;
									size = k + 1;
									copy_from = itt;
								}
							} else if (itt[k].gfx == 0xFF) {
								itt[k].ti.x = (int8)GB(itt[k].ti.x, 0, 8);
								itt[k].ti.y = (int8)GB(itt[k].ti.y, 0, 8);
							}
						}

						if (!ValidateIndustryLayout(copy_from, size)) {
							/* The industry layout was not valid, so skip this one. */
							grfmsg(1, "IndustriesChangeInfo: Invalid industry layout for industry id %u. Ignoring", indid);
							new_num_layouts--;
							j--;
						} else {
							tile_table[j] = CallocT<IndustryTileTable>(size);
							memcpy(tile_table[j], copy_from, sizeof(*copy_from) * size);
						}
					}
				} catch (...) {
					for (int i = 0; i < new_num_layouts; i++) {
						free(tile_table[i]);
					}
					free(tile_table);
					free(itt);
					throw;
				}

				/* Clean the tile table if it was already set by a previous prop A. */
				CleanIndustryTileTable(indsp);
				/* Install final layout construction in the industry spec */
				indsp->num_table = new_num_layouts;
				indsp->table = tile_table;
				SetBit(indsp->cleanup_flag, CLEAN_TILELAYOUT);
				free(itt);
				break;
			}

			case 0x0B: // Industry production flags
				indsp->life_type = (IndustryLifeType)buf->ReadByte();
				break;

			case 0x0C: // Industry closure message
				indsp->closure_text = buf->ReadWord();
				_string_to_grf_mapping[&indsp->closure_text] = _cur.grffile->grfid;
				break;

			case 0x0D: // Production increase message
				indsp->production_up_text = buf->ReadWord();
				_string_to_grf_mapping[&indsp->production_up_text] = _cur.grffile->grfid;
				break;

			case 0x0E: // Production decrease message
				indsp->production_down_text = buf->ReadWord();
				_string_to_grf_mapping[&indsp->production_down_text] = _cur.grffile->grfid;
				break;

			case 0x0F: // Fund cost multiplier
				indsp->cost_multiplier = buf->ReadByte();
				break;

			case 0x10: // Production cargo types
				for (byte j = 0; j < 2; j++) {
					indsp->produced_cargo[j] = GetCargoTranslation(buf->ReadByte(), _cur.grffile);
				}
				break;

			case 0x11: // Acceptance cargo types
				for (byte j = 0; j < 3; j++) {
					indsp->accepts_cargo[j] = GetCargoTranslation(buf->ReadByte(), _cur.grffile);
				}
				buf->ReadByte(); // Unnused, eat it up
				break;

			case 0x12: // Production multipliers
			case 0x13:
				indsp->production_rate[prop - 0x12] = buf->ReadByte();
				break;

			case 0x14: // Minimal amount of cargo distributed
				indsp->minimal_cargo = buf->ReadByte();
				break;

			case 0x15: { // Random sound effects
				indsp->number_of_sounds = buf->ReadByte();
				uint8 *sounds = MallocT<uint8>(indsp->number_of_sounds);

				try {
					for (uint8 j = 0; j < indsp->number_of_sounds; j++) {
						sounds[j] = buf->ReadByte();
					}
				} catch (...) {
					free(sounds);
					throw;
				}

				if (HasBit(indsp->cleanup_flag, CLEAN_RANDOMSOUNDS)) {
					free(indsp->random_sounds);
				}
				indsp->random_sounds = sounds;
				SetBit(indsp->cleanup_flag, CLEAN_RANDOMSOUNDS);
				break;
			}

			case 0x16: // Conflicting industry types
				for (byte j = 0; j < 3; j++) indsp->conflicting[j] = buf->ReadByte();
				break;

			case 0x17: // Probability in random game
				indsp->appear_creation[_settings_game.game_creation.landscape] = buf->ReadByte();
				break;

			case 0x18: // Probability during gameplay
				indsp->appear_ingame[_settings_game.game_creation.landscape] = buf->ReadByte();
				break;

			case 0x19: // Map colour
				indsp->map_colour = buf->ReadByte();
				break;

			case 0x1A: // Special industry flags to define special behavior
				indsp->behaviour = (IndustryBehaviour)buf->ReadDWord();
				break;

			case 0x1B: // New industry text ID
				indsp->new_industry_text = buf->ReadWord();
				_string_to_grf_mapping[&indsp->new_industry_text] = _cur.grffile->grfid;
				break;

			case 0x1C: // Input cargo multipliers for the three input cargo types
			case 0x1D:
			case 0x1E: {
					uint32 multiples = buf->ReadDWord();
					indsp->input_cargo_multiplier[prop - 0x1C][0] = GB(multiples, 0, 16);
					indsp->input_cargo_multiplier[prop - 0x1C][1] = GB(multiples, 16, 16);
					break;
				}

			case 0x1F: // Industry name
				indsp->name = buf->ReadWord();
				_string_to_grf_mapping[&indsp->name] = _cur.grffile->grfid;
				break;

			case 0x20: // Prospecting success chance
				indsp->prospecting_chance = buf->ReadDWord();
				break;

			case 0x21:   // Callback mask
			case 0x22: { // Callback additional mask
				byte aflag = buf->ReadByte();
				SB(indsp->callback_mask, (prop - 0x21) * 8, 8, aflag);
				break;
			}

			case 0x23: // removal cost multiplier
				indsp->removal_cost_multiplier = buf->ReadDWord();
				break;

			case 0x24: // name for nearby station
				indsp->station_name = buf->ReadWord();
				if (indsp->station_name != STR_NULL) _string_to_grf_mapping[&indsp->station_name] = _cur.grffile->grfid;
				break;

			default:
				ret = CIR_UNKNOWN;
				break;
		}
	}

	return ret;
}

/**
 * Create a copy of the tile table so it can be freed later
 * without problems.
 * @param as The AirportSpec to copy the arrays of.
 */
static void DuplicateTileTable(AirportSpec *as)
{
	AirportTileTable **table_list = MallocT<AirportTileTable*>(as->num_table);
	for (int i = 0; i < as->num_table; i++) {
		uint num_tiles = 1;
		const AirportTileTable *it = as->table[0];
		do {
			num_tiles++;
		} while ((++it)->ti.x != -0x80);
		table_list[i] = MallocT<AirportTileTable>(num_tiles);
		MemCpyT(table_list[i], as->table[i], num_tiles);
	}
	as->table = table_list;
	HangarTileTable *depot_table = MallocT<HangarTileTable>(as->nof_depots);
	MemCpyT(depot_table, as->depot_table, as->nof_depots);
	as->depot_table = depot_table;
}

/**
 * Define properties for airports
 * @param airport Local ID of the airport.
 * @param numinfo Number of subsequent airport IDs to change the property for.
 * @param prop The property to change.
 * @param buf The property value.
 * @return ChangeInfoResult.
 */
static ChangeInfoResult AirportChangeInfo(uint airport, int numinfo, int prop, ByteReader *buf)
{
	ChangeInfoResult ret = CIR_SUCCESS;

	if (airport + numinfo > NUM_AIRPORTS) {
		grfmsg(1, "AirportChangeInfo: Too many airports, trying id (%u), max (%u). Ignoring.", airport + numinfo, NUM_AIRPORTS);
		return CIR_INVALID_ID;
	}

	grfmsg(1, "AirportChangeInfo: newid %u", airport);

	/* Allocate industry specs if they haven't been allocated already. */
	if (_cur.grffile->airportspec == NULL) {
		_cur.grffile->airportspec = CallocT<AirportSpec*>(NUM_AIRPORTS);
	}

	for (int i = 0; i < numinfo; i++) {
		AirportSpec *as = _cur.grffile->airportspec[airport + i];

		if (as == NULL && prop != 0x08 && prop != 0x09) {
			grfmsg(2, "AirportChangeInfo: Attempt to modify undefined airport %u, ignoring", airport + i);
			return CIR_INVALID_ID;
		}

		switch (prop) {
			case 0x08: { // Modify original airport
				byte subs_id = buf->ReadByte();

				if (subs_id == 0xFF) {
					/* Instead of defining a new airport, an airport id
					 * of 0xFF disables the old airport with the current id. */
					AirportSpec::GetWithoutOverride(airport + i)->enabled = false;
					continue;
				} else if (subs_id >= NEW_AIRPORT_OFFSET) {
					/* The substitute id must be one of the original airports. */
					grfmsg(2, "AirportChangeInfo: Attempt to use new airport %u as substitute airport for %u. Ignoring.", subs_id, airport + i);
					continue;
				}

				AirportSpec **spec = &_cur.grffile->airportspec[airport + i];
				/* Allocate space for this airport.
				 * Only need to do it once. If ever it is called again, it should not
				 * do anything */
				if (*spec == NULL) {
					*spec = MallocT<AirportSpec>(1);
					as = *spec;

					memcpy(as, AirportSpec::GetWithoutOverride(subs_id), sizeof(*as));
					as->enabled = true;
					as->grf_prop.local_id = airport + i;
					as->grf_prop.subst_id = subs_id;
					as->grf_prop.grffile = _cur.grffile;
					/* override the default airport */
					_airport_mngr.Add(airport + i, _cur.grffile->grfid, subs_id);
					/* Create a copy of the original tiletable so it can be freed later. */
					DuplicateTileTable(as);
				}
				break;
			}

			case 0x0A: { // Set airport layout
				as->num_table = buf->ReadByte(); // Number of layaouts
				as->rotation = MallocT<Direction>(as->num_table);
				uint32 defsize = buf->ReadDWord();  // Total size of the definition
				AirportTileTable **tile_table = CallocT<AirportTileTable*>(as->num_table); // Table with tiles to compose the airport
				AirportTileTable *att = CallocT<AirportTileTable>(defsize); // Temporary array to read the tile layouts from the GRF
				int size;
				const AirportTileTable *copy_from;
				try {
					for (byte j = 0; j < as->num_table; j++) {
						as->rotation[j] = (Direction)buf->ReadByte();
						for (int k = 0;; k++) {
							att[k].ti.x = buf->ReadByte(); // Offsets from northermost tile
							att[k].ti.y = buf->ReadByte();

							if (att[k].ti.x == 0 && att[k].ti.y == 0x80) {
								/*  Not the same terminator.  The one we are using is rather
								 x= -80, y = 0 .  So, adjust it. */
								att[k].ti.x = -0x80;
								att[k].ti.y =  0;
								att[k].gfx  =  0;

								size = k + 1;
								copy_from = att;
								break;
							}

							att[k].gfx = buf->ReadByte();

							if (att[k].gfx == 0xFE) {
								/* Use a new tile from this GRF */
								int local_tile_id = buf->ReadWord();

								/* Read the ID from the _airporttile_mngr. */
								uint16 tempid = _airporttile_mngr.GetID(local_tile_id, _cur.grffile->grfid);

								if (tempid == INVALID_AIRPORTTILE) {
									grfmsg(2, "AirportChangeInfo: Attempt to use airport tile %u with airport id %u, not yet defined. Ignoring.", local_tile_id, airport + i);
								} else {
									/* Declared as been valid, can be used */
									att[k].gfx = tempid;
									size = k + 1;
									copy_from = att;
								}
							} else if (att[k].gfx == 0xFF) {
								att[k].ti.x = (int8)GB(att[k].ti.x, 0, 8);
								att[k].ti.y = (int8)GB(att[k].ti.y, 0, 8);
							}

							if (as->rotation[j] == DIR_E || as->rotation[j] == DIR_W) {
								as->size_x = max<byte>(as->size_x, att[k].ti.y + 1);
								as->size_y = max<byte>(as->size_y, att[k].ti.x + 1);
							} else {
								as->size_x = max<byte>(as->size_x, att[k].ti.x + 1);
								as->size_y = max<byte>(as->size_y, att[k].ti.y + 1);
							}
						}
						tile_table[j] = CallocT<AirportTileTable>(size);
						memcpy(tile_table[j], copy_from, sizeof(*copy_from) * size);
					}
					/* Install final layout construction in the airport spec */
					as->table = tile_table;
					free(att);
				} catch (...) {
					for (int i = 0; i < as->num_table; i++) {
						free(tile_table[i]);
					}
					free(tile_table);
					free(att);
					throw;
				}
				break;
			}

			case 0x0C:
				as->min_year = buf->ReadWord();
				as->max_year = buf->ReadWord();
				if (as->max_year == 0xFFFF) as->max_year = MAX_YEAR;
				break;

			case 0x0D:
				as->ttd_airport_type = (TTDPAirportType)buf->ReadByte();
				break;

			case 0x0E:
				as->catchment = Clamp(buf->ReadByte(), 1, MAX_CATCHMENT);
				break;

			case 0x0F:
				as->noise_level = buf->ReadByte();
				break;

			case 0x10:
				as->name = buf->ReadWord();
				_string_to_grf_mapping[&as->name] = _cur.grffile->grfid;
				break;

			case 0x11: // Maintenance cost factor
				as->maintenance_cost = buf->ReadWord();
				break;

			default:
				ret = CIR_UNKNOWN;
				break;
		}
	}

	return ret;
}

/**
 * Ignore properties for objects
 * @param prop The property to ignore.
 * @param buf The property value.
 * @return ChangeInfoResult.
 */
static ChangeInfoResult IgnoreObjectProperty(uint prop, ByteReader *buf)
{
	ChangeInfoResult ret = CIR_SUCCESS;

	switch (prop) {
		case 0x0B:
		case 0x0C:
		case 0x0D:
		case 0x12:
		case 0x14:
		case 0x16:
		case 0x17:
			buf->ReadByte();

		case 0x09:
		case 0x0A:
		case 0x10:
		case 0x11:
		case 0x13:
		case 0x15:
			buf->ReadWord();
			break;

		case 0x08:
		case 0x0E:
		case 0x0F:
			buf->ReadDWord();
			break;

		default:
			ret = CIR_UNKNOWN;
			break;
	}

	return ret;
}

/**
 * Define properties for objects
 * @param id Local ID of the object.
 * @param numinfo Number of subsequent objectIDs to change the property for.
 * @param prop The property to change.
 * @param buf The property value.
 * @return ChangeInfoResult.
 */
static ChangeInfoResult ObjectChangeInfo(uint id, int numinfo, int prop, ByteReader *buf)
{
	ChangeInfoResult ret = CIR_SUCCESS;

	if (id + numinfo > NUM_OBJECTS) {
		grfmsg(1, "ObjectChangeInfo: Too many objects loaded (%u), max (%u). Ignoring.", id + numinfo, NUM_OBJECTS);
		return CIR_INVALID_ID;
	}

	/* Allocate object specs if they haven't been allocated already. */
	if (_cur.grffile->objectspec == NULL) {
		_cur.grffile->objectspec = CallocT<ObjectSpec*>(NUM_OBJECTS);
	}

	for (int i = 0; i < numinfo; i++) {
		ObjectSpec *spec = _cur.grffile->objectspec[id + i];

		if (prop != 0x08 && spec == NULL) {
			/* If the object property 08 is not yet set, ignore this property */
			ChangeInfoResult cir = IgnoreObjectProperty(prop, buf);
			if (cir > ret) ret = cir;
			continue;
		}

		switch (prop) {
			case 0x08: { // Class ID
				ObjectSpec **ospec = &_cur.grffile->objectspec[id + i];

				/* Allocate space for this object. */
				if (*ospec == NULL) {
					*ospec = CallocT<ObjectSpec>(1);
					(*ospec)->views = 1; // Default for NewGRFs that don't set it.
				}

				/* Swap classid because we read it in BE. */
				uint32 classid = buf->ReadDWord();
				(*ospec)->cls_id = ObjectClass::Allocate(BSWAP32(classid));
				(*ospec)->enabled = true;
				break;
			}

			case 0x09: { // Class name
				StringID class_name = buf->ReadWord();
				ObjectClass::SetName(spec->cls_id, class_name);
				_string_to_grf_mapping[&ObjectClass::classes[spec->cls_id].name] = _cur.grffile->grfid;
				break;
			}

			case 0x0A: // Object name
				spec->name = buf->ReadWord();
				_string_to_grf_mapping[&spec->name] = _cur.grffile->grfid;
				break;

			case 0x0B: // Climate mask
				spec->climate = buf->ReadByte();
				break;

			case 0x0C: // Size
				spec->size = buf->ReadByte();
				break;

			case 0x0D: // Build cost multipler
				spec->build_cost_multiplier = buf->ReadByte();
				spec->clear_cost_multiplier = spec->build_cost_multiplier;
				break;

			case 0x0E: // Introduction date
				spec->introduction_date = buf->ReadDWord();
				break;

			case 0x0F: // End of life
				spec->end_of_life_date = buf->ReadDWord();
				break;

			case 0x10: // Flags
				spec->flags = (ObjectFlags)buf->ReadWord();
				_loaded_newgrf_features.has_2CC |= (spec->flags & OBJECT_FLAG_2CC_COLOUR) != 0;
				break;

			case 0x11: // Animation info
				spec->animation.frames = buf->ReadByte();
				spec->animation.status = buf->ReadByte();
				break;

			case 0x12: // Animation speed
				spec->animation.speed = buf->ReadByte();
				break;

			case 0x13: // Animation triggers
				spec->animation.triggers = buf->ReadWord();
				break;

			case 0x14: // Removal cost multiplier
				spec->clear_cost_multiplier = buf->ReadByte();
				break;

			case 0x15: // Callback mask
				spec->callback_mask = buf->ReadWord();
				break;

			case 0x16: // Building height
				spec->height = buf->ReadByte();
				break;

			case 0x17: // Views
				spec->views = buf->ReadByte();
				if (spec->views != 1 && spec->views != 2 && spec->views != 4) {
					grfmsg(2, "ObjectChangeInfo: Invalid number of views (%u) for object id %u. Ignoring.", spec->views, id + i);
					spec->views = 1;
				}
				break;

			default:
				ret = CIR_UNKNOWN;
				break;
		}
	}

	return ret;
}

/**
 * Define properties for railtypes
 * @param id ID of the railtype.
 * @param numinfo Number of subsequent IDs to change the property for.
 * @param prop The property to change.
 * @param buf The property value.
 * @return ChangeInfoResult.
 */
static ChangeInfoResult RailTypeChangeInfo(uint id, int numinfo, int prop, ByteReader *buf)
{
	ChangeInfoResult ret = CIR_SUCCESS;

	extern RailtypeInfo _railtypes[RAILTYPE_END];

	if (id + numinfo > RAILTYPE_END) {
		grfmsg(1, "RailTypeChangeInfo: Rail type %u is invalid, max %u, ignoring", id + numinfo, RAILTYPE_END);
		return CIR_INVALID_ID;
	}

	for (int i = 0; i < numinfo; i++) {
		RailType rt = _cur.grffile->railtype_map[id + i];
		if (rt == INVALID_RAILTYPE) return CIR_INVALID_ID;

		RailtypeInfo *rti = &_railtypes[rt];

		switch (prop) {
			case 0x08: // Label of rail type
				/* Skipped here as this is loaded during reservation stage. */
				buf->ReadDWord();
				break;

			case 0x09: // Toolbar caption of railtype (sets name as well for backwards compatibility for grf ver < 8)
				rti->strings.toolbar_caption = buf->ReadWord();
				_string_to_grf_mapping[&rti->strings.toolbar_caption] = _cur.grffile->grfid;
				if (_cur.grffile->grf_version < 8) {
					rti->strings.name = rti->strings.toolbar_caption;
					_string_to_grf_mapping[&rti->strings.name] = _cur.grffile->grfid;
				}
				break;

			case 0x0A: // Menu text of railtype
				rti->strings.menu_text = buf->ReadWord();
				_string_to_grf_mapping[&rti->strings.menu_text] = _cur.grffile->grfid;
				break;

			case 0x0B: // Build window caption
				rti->strings.build_caption = buf->ReadWord();
				_string_to_grf_mapping[&rti->strings.build_caption] = _cur.grffile->grfid;
				break;

			case 0x0C: // Autoreplace text
				rti->strings.replace_text = buf->ReadWord();
				_string_to_grf_mapping[&rti->strings.replace_text] = _cur.grffile->grfid;
				break;

			case 0x0D: // New locomotive text
				rti->strings.new_loco = buf->ReadWord();
				_string_to_grf_mapping[&rti->strings.new_loco] = _cur.grffile->grfid;
				break;

			case 0x0E: // Compatible railtype list
			case 0x0F: // Powered railtype list
			case 0x18: // Railtype list required for date introduction
			case 0x19: // Introduced railtype list
			{
				/* Rail type compatibility bits are added to the existing bits
				 * to allow multiple GRFs to modify compatibility with the
				 * default rail types. */
				int n = buf->ReadByte();
				for (int j = 0; j != n; j++) {
					RailTypeLabel label = buf->ReadDWord();
					RailType rt = GetRailTypeByLabel(BSWAP32(label));
					if (rt != INVALID_RAILTYPE) {
						switch (prop) {
							case 0x0E: SetBit(rti->compatible_railtypes, rt);            break;
							case 0x0F: SetBit(rti->powered_railtypes, rt);               break;
							case 0x18: SetBit(rti->introduction_required_railtypes, rt); break;
							case 0x19: SetBit(rti->introduces_railtypes, rt);            break;
						}
					}
				}
				break;
			}

			case 0x10: // Rail Type flags
				rti->flags = (RailTypeFlags)buf->ReadByte();
				break;

			case 0x11: // Curve speed advantage
				rti->curve_speed = buf->ReadByte();
				break;

			case 0x12: // Station graphic
				rti->fallback_railtype = Clamp(buf->ReadByte(), 0, 2);
				break;

			case 0x13: // Construction cost factor
				rti->cost_multiplier = buf->ReadWord();
				break;

			case 0x14: // Speed limit
				rti->max_speed = buf->ReadWord();
				break;

			case 0x15: // Acceleration model
				rti->acceleration_type = Clamp(buf->ReadByte(), 0, 2);
				break;

			case 0x16: // Map colour
				rti->map_colour = buf->ReadByte();
				break;

			case 0x17: // Introduction date
				rti->introduction_date = buf->ReadDWord();
				break;

			case 0x1A: // Sort order
				rti->sorting_order = buf->ReadByte();
				break;

			case 0x1B: // Name of railtype (overridden by prop 09 for grf ver < 8)
				rti->strings.name = buf->ReadWord();
				_string_to_grf_mapping[&rti->strings.name] = _cur.grffile->grfid;
				break;

			case 0x1C: // Maintenance cost factor
				rti->maintenance_multiplier = buf->ReadWord();
				break;

			default:
				ret = CIR_UNKNOWN;
				break;
		}
	}

	return ret;
}

static ChangeInfoResult RailTypeReserveInfo(uint id, int numinfo, int prop, ByteReader *buf)
{
	ChangeInfoResult ret = CIR_SUCCESS;

	if (id + numinfo > RAILTYPE_END) {
		grfmsg(1, "RailTypeReserveInfo: Rail type %u is invalid, max %u, ignoring", id + numinfo, RAILTYPE_END);
		return CIR_INVALID_ID;
	}

	for (int i = 0; i < numinfo; i++) {
		switch (prop) {
			case 0x08: // Label of rail type
			{
				RailTypeLabel rtl = buf->ReadDWord();
				rtl = BSWAP32(rtl);

				RailType rt = GetRailTypeByLabel(rtl);
				if (rt == INVALID_RAILTYPE) {
					/* Set up new rail type */
					rt = AllocateRailType(rtl);
				}

				_cur.grffile->railtype_map[id + i] = rt;
				break;
			}

			case 0x09: // Toolbar caption of railtype
			case 0x0A: // Menu text
			case 0x0B: // Build window caption
			case 0x0C: // Autoreplace text
			case 0x0D: // New loco
			case 0x13: // Construction cost
			case 0x14: // Speed limit
			case 0x1B: // Name of railtype
			case 0x1C: // Maintenance cost factor
				buf->ReadWord();
				break;

			case 0x0E: // Compatible railtype list
			case 0x0F: // Powered railtype list
			case 0x18: // Railtype list required for date introduction
			case 0x19: // Introduced railtype list
				for (int j = buf->ReadByte(); j != 0; j--) buf->ReadDWord();
				break;

			case 0x10: // Rail Type flags
			case 0x11: // Curve speed advantage
			case 0x12: // Station graphic
			case 0x15: // Acceleration model
			case 0x16: // Map colour
			case 0x1A: // Sort order
				buf->ReadByte();
				break;

			case 0x17: // Introduction date
				buf->ReadDWord();
				break;

			default:
				ret = CIR_UNKNOWN;
				break;
		}
	}

	return ret;
}

static ChangeInfoResult AirportTilesChangeInfo(uint airtid, int numinfo, int prop, ByteReader *buf)
{
	ChangeInfoResult ret = CIR_SUCCESS;

	if (airtid + numinfo > NUM_AIRPORTTILES) {
		grfmsg(1, "AirportTileChangeInfo: Too many airport tiles loaded (%u), max (%u). Ignoring.", airtid + numinfo, NUM_AIRPORTTILES);
		return CIR_INVALID_ID;
	}

	/* Allocate airport tile specs if they haven't been allocated already. */
	if (_cur.grffile->airtspec == NULL) {
		_cur.grffile->airtspec = CallocT<AirportTileSpec*>(NUM_AIRPORTTILES);
	}

	for (int i = 0; i < numinfo; i++) {
		AirportTileSpec *tsp = _cur.grffile->airtspec[airtid + i];

		if (prop != 0x08 && tsp == NULL) {
			grfmsg(2, "AirportTileChangeInfo: Attempt to modify undefined airport tile %u. Ignoring.", airtid + i);
			return CIR_INVALID_ID;
		}

		switch (prop) {
			case 0x08: { // Substitute airport tile type
				AirportTileSpec **tilespec = &_cur.grffile->airtspec[airtid + i];
				byte subs_id = buf->ReadByte();

				if (subs_id >= NEW_AIRPORTTILE_OFFSET) {
					/* The substitute id must be one of the original airport tiles. */
					grfmsg(2, "AirportTileChangeInfo: Attempt to use new airport tile %u as substitute airport tile for %u. Ignoring.", subs_id, airtid + i);
					continue;
				}

				/* Allocate space for this airport tile. */
				if (*tilespec == NULL) {
					*tilespec = CallocT<AirportTileSpec>(1);
					tsp = *tilespec;

					memcpy(tsp, AirportTileSpec::Get(subs_id), sizeof(AirportTileSpec));
					tsp->enabled = true;

					tsp->animation.status = ANIM_STATUS_NO_ANIMATION;

					tsp->grf_prop.local_id = airtid + i;
					tsp->grf_prop.subst_id = subs_id;
					tsp->grf_prop.grffile = _cur.grffile;
					_airporttile_mngr.AddEntityID(airtid + i, _cur.grffile->grfid, subs_id); // pre-reserve the tile slot
				}
				break;
			}

			case 0x09: { // Airport tile override
				byte override = buf->ReadByte();

				/* The airport tile being overridden must be an original airport tile. */
				if (override >= NEW_AIRPORTTILE_OFFSET) {
					grfmsg(2, "AirportTileChangeInfo: Attempt to override new airport tile %u with airport tile id %u. Ignoring.", override, airtid + i);
					continue;
				}

				_airporttile_mngr.Add(airtid + i, _cur.grffile->grfid, override);
				break;
			}

			case 0x0E: // Callback mask
				tsp->callback_mask = buf->ReadByte();
				break;

			case 0x0F: // Animation information
				tsp->animation.frames = buf->ReadByte();
				tsp->animation.status = buf->ReadByte();
				break;

			case 0x10: // Animation speed
				tsp->animation.speed = buf->ReadByte();
				break;

			case 0x11: // Animation triggers
				tsp->animation.triggers = buf->ReadByte();
				break;

			default:
				ret = CIR_UNKNOWN;
				break;
		}
	}

	return ret;
}

static bool HandleChangeInfoResult(const char *caller, ChangeInfoResult cir, uint8 feature, uint8 property)
{
	switch (cir) {
		default: NOT_REACHED();

		case CIR_DISABLED:
			/* Error has already been printed; just stop parsing */
			return true;

		case CIR_SUCCESS:
			return false;

		case CIR_UNHANDLED:
			grfmsg(1, "%s: Ignoring property 0x%02X of feature 0x%02X (not implemented)", caller, property, feature);
			return false;

		case CIR_UNKNOWN:
			grfmsg(0, "%s: Unknown property 0x%02X of feature 0x%02X, disabling", caller, property, feature);
			/* FALL THROUGH */

		case CIR_INVALID_ID:
			/* No debug message for an invalid ID, as it has already been output */
			DisableGrf(cir == CIR_INVALID_ID ? STR_NEWGRF_ERROR_INVALID_ID : STR_NEWGRF_ERROR_UNKNOWN_PROPERTY);
			return true;
	}
}

/* Action 0x00 */
static void FeatureChangeInfo(ByteReader *buf)
{
	/* <00> <feature> <num-props> <num-info> <id> (<property <new-info>)...
	 *
	 * B feature
	 * B num-props     how many properties to change per vehicle/station
	 * B num-info      how many vehicles/stations to change
	 * E id            ID of first vehicle/station to change, if num-info is
	 *                 greater than one, this one and the following
	 *                 vehicles/stations will be changed
	 * B property      what property to change, depends on the feature
	 * V new-info      new bytes of info (variable size; depends on properties) */

	static const VCI_Handler handler[] = {
		/* GSF_TRAINS */        RailVehicleChangeInfo,
		/* GSF_ROADVEHICLES */  RoadVehicleChangeInfo,
		/* GSF_SHIPS */         ShipVehicleChangeInfo,
		/* GSF_AIRCRAFT */      AircraftVehicleChangeInfo,
		/* GSF_STATIONS */      StationChangeInfo,
		/* GSF_CANALS */        CanalChangeInfo,
		/* GSF_BRIDGES */       BridgeChangeInfo,
		/* GSF_HOUSES */        TownHouseChangeInfo,
		/* GSF_GLOBALVAR */     GlobalVarChangeInfo,
		/* GSF_INDUSTRYTILES */ IndustrytilesChangeInfo,
		/* GSF_INDUSTRIES */    IndustriesChangeInfo,
		/* GSF_CARGOS */        NULL, // Cargo is handled during reservation
		/* GSF_SOUNDFX */       SoundEffectChangeInfo,
		/* GSF_AIRPORTS */      AirportChangeInfo,
		/* GSF_SIGNALS */       NULL,
		/* GSF_OBJECTS */       ObjectChangeInfo,
		/* GSF_RAILTYPES */     RailTypeChangeInfo,
		/* GSF_AIRPORTTILES */  AirportTilesChangeInfo,
	};

	uint8 feature  = buf->ReadByte();
	uint8 numprops = buf->ReadByte();
	uint numinfo  = buf->ReadByte();
	uint engine   = buf->ReadExtendedByte();

	grfmsg(6, "FeatureChangeInfo: feature %d, %d properties, to apply to %d+%d",
	               feature, numprops, engine, numinfo);

	if (feature >= lengthof(handler) || handler[feature] == NULL) {
		if (feature != GSF_CARGOS) grfmsg(1, "FeatureChangeInfo: Unsupported feature %d, skipping", feature);
		return;
	}

	/* Mark the feature as used by the grf */
	SetBit(_cur.grffile->grf_features, feature);

	while (numprops-- && buf->HasData()) {
		uint8 prop = buf->ReadByte();

		ChangeInfoResult cir = handler[feature](engine, numinfo, prop, buf);
		if (HandleChangeInfoResult("FeatureChangeInfo", cir, feature, prop)) return;
	}
}

/* Action 0x00 (GLS_SAFETYSCAN) */
static void SafeChangeInfo(ByteReader *buf)
{
	uint8 feature  = buf->ReadByte();
	uint8 numprops = buf->ReadByte();
	uint numinfo = buf->ReadByte();
	buf->ReadExtendedByte(); // id

	if (feature == GSF_BRIDGES && numprops == 1) {
		uint8 prop = buf->ReadByte();
		/* Bridge property 0x0D is redefinition of sprite layout tables, which
		 * is considered safe. */
		if (prop == 0x0D) return;
	} else if (feature == GSF_GLOBALVAR && numprops == 1) {
		uint8 prop = buf->ReadByte();
		/* Engine ID Mappings are safe, if the source is static */
		if (prop == 0x11) {
			bool is_safe = true;
			for (uint i = 0; i < numinfo; i++) {
				uint32 s = buf->ReadDWord();
				buf->ReadDWord(); // dest
				const GRFConfig *grfconfig = GetGRFConfig(s);
				if (grfconfig != NULL && !HasBit(grfconfig->flags, GCF_STATIC)) {
					is_safe = false;
					break;
				}
			}
			if (is_safe) return;
		}
	}

	SetBit(_cur.grfconfig->flags, GCF_UNSAFE);

	/* Skip remainder of GRF */
	_cur.skip_sprites = -1;
}

/* Action 0x00 (GLS_RESERVE) */
static void ReserveChangeInfo(ByteReader *buf)
{
	uint8 feature  = buf->ReadByte();

	if (feature != GSF_CARGOS && feature != GSF_GLOBALVAR && feature != GSF_RAILTYPES) return;

	uint8 numprops = buf->ReadByte();
	uint8 numinfo  = buf->ReadByte();
	uint8 index    = buf->ReadExtendedByte();

	while (numprops-- && buf->HasData()) {
		uint8 prop = buf->ReadByte();
		ChangeInfoResult cir = CIR_SUCCESS;

		switch (feature) {
			default: NOT_REACHED();
			case GSF_CARGOS:
				cir = CargoChangeInfo(index, numinfo, prop, buf);
				break;

			case GSF_GLOBALVAR:
				cir = GlobalVarReserveInfo(index, numinfo, prop, buf);
				break;

			case GSF_RAILTYPES:
				cir = RailTypeReserveInfo(index, numinfo, prop, buf);
				break;
		}

		if (HandleChangeInfoResult("ReserveChangeInfo", cir, feature, prop)) return;
	}
}

/* Action 0x01 */
static void NewSpriteSet(ByteReader *buf)
{
	/* <01> <feature> <num-sets> <num-ent>
	 *
	 * B feature       feature to define sprites for
	 *                 0, 1, 2, 3: veh-type, 4: train stations
	 * B num-sets      number of sprite sets
	 * E num-ent       how many entries per sprite set
	 *                 For vehicles, this is the number of different
	 *                         vehicle directions in each sprite set
	 *                         Set num-dirs=8, unless your sprites are symmetric.
	 *                         In that case, use num-dirs=4.
	 */

	uint8 feature   = buf->ReadByte();
	uint8 num_sets  = buf->ReadByte();
	uint16 first_set = 0;

	if (num_sets == 0 && buf->HasData(2)) {
		/* Extended Action1 format.
		 * Some GRFs define zero sets of zero sprites, though there is actually no use in that. Ignore them. */
		first_set = buf->ReadExtendedByte();
		num_sets = buf->ReadExtendedByte();
	}
	uint16 num_ents = buf->ReadExtendedByte();

	_cur.AddSpriteSets(feature, _cur.spriteid, first_set, num_sets, num_ents);

	grfmsg(7, "New sprite set at %d of type %d, consisting of %d sets with %d views each (total %d)",
		_cur.spriteid, feature, num_sets, num_ents, num_sets * num_ents
	);

	for (int i = 0; i < num_sets * num_ents; i++) {
		_cur.nfo_line++;
		LoadNextSprite(_cur.spriteid++, _cur.file_index, _cur.nfo_line);
	}
}

/* Action 0x01 (SKIP) */
static void SkipAct1(ByteReader *buf)
{
	buf->ReadByte();
	uint8 num_sets  = buf->ReadByte();
	uint16 num_ents = buf->ReadExtendedByte();

	_cur.skip_sprites = num_sets * num_ents;

	grfmsg(3, "SkipAct1: Skipping %d sprites", _cur.skip_sprites);
}

/* Helper function to either create a callback or link to a previously
 * defined spritegroup. */
static const SpriteGroup *GetGroupFromGroupID(byte setid, byte type, uint16 groupid)
{
	if (HasBit(groupid, 15)) {
		assert(CallbackResultSpriteGroup::CanAllocateItem());
		return new CallbackResultSpriteGroup(groupid, _cur.grffile->grf_version >= 8);
	}

	if (groupid > MAX_SPRITEGROUP || _cur.spritegroups[groupid] == NULL) {
		grfmsg(1, "GetGroupFromGroupID(0x%02X:0x%02X): Groupid 0x%04X does not exist, leaving empty", setid, type, groupid);
		return NULL;
	}

	return _cur.spritegroups[groupid];
}

/**
 * Helper function to either create a callback or a result sprite group.
 * @param feature GrfSpecFeature to define spritegroup for.
 * @param setid SetID of the currently being parsed Action2. (only for debug output)
 * @param type Type of the currently being parsed Action2. (only for debug output)
 * @param spriteid Raw value from the GRF for the new spritegroup; describes either the return value or the referenced spritegroup.
 * @return Created spritegroup.
 */
static const SpriteGroup *CreateGroupFromGroupID(byte feature, byte setid, byte type, uint16 spriteid)
{
	if (HasBit(spriteid, 15)) {
		assert(CallbackResultSpriteGroup::CanAllocateItem());
		return new CallbackResultSpriteGroup(spriteid, _cur.grffile->grf_version >= 8);
	}

	if (!_cur.IsValidSpriteSet(feature, spriteid)) {
		grfmsg(1, "CreateGroupFromGroupID(0x%02X:0x%02X): Sprite set %u invalid", setid, type, spriteid);
		return NULL;
	}

	SpriteID spriteset_start = _cur.GetSprite(feature, spriteid);
	uint num_sprites = _cur.GetNumEnts(feature, spriteid);

	/* Ensure that the sprites are loeded */
	assert(spriteset_start + num_sprites <= _cur.spriteid);

	assert(ResultSpriteGroup::CanAllocateItem());
	return new ResultSpriteGroup(spriteset_start, num_sprites);
}

/* Action 0x02 */
static void NewSpriteGroup(ByteReader *buf)
{
	/* <02> <feature> <set-id> <type/num-entries> <feature-specific-data...>
	 *
	 * B feature       see action 1
	 * B set-id        ID of this particular definition
	 * B type/num-entries
	 *                 if 80 or greater, this is a randomized or variational
	 *                 list definition, see below
	 *                 otherwise it specifies a number of entries, the exact
	 *                 meaning depends on the feature
	 * V feature-specific-data (huge mess, don't even look it up --pasky) */
	SpriteGroup *act_group = NULL;

	uint8 feature = buf->ReadByte();
	uint8 setid   = buf->ReadByte();
	uint8 type    = buf->ReadByte();

	/* Sprite Groups are created here but they are allocated from a pool, so
	 * we do not need to delete anything if there is an exception from the
	 * ByteReader. */

	switch (type) {
		/* Deterministic Sprite Group */
		case 0x81: // Self scope, byte
		case 0x82: // Parent scope, byte
		case 0x85: // Self scope, word
		case 0x86: // Parent scope, word
		case 0x89: // Self scope, dword
		case 0x8A: // Parent scope, dword
		{
			byte varadjust;
			byte varsize;

			assert(DeterministicSpriteGroup::CanAllocateItem());
			DeterministicSpriteGroup *group = new DeterministicSpriteGroup();
			act_group = group;
			group->var_scope = HasBit(type, 1) ? VSG_SCOPE_PARENT : VSG_SCOPE_SELF;

			switch (GB(type, 2, 2)) {
				default: NOT_REACHED();
				case 0: group->size = DSG_SIZE_BYTE;  varsize = 1; break;
				case 1: group->size = DSG_SIZE_WORD;  varsize = 2; break;
				case 2: group->size = DSG_SIZE_DWORD; varsize = 4; break;
			}

			static SmallVector<DeterministicSpriteGroupAdjust, 16> adjusts;
			adjusts.Clear();

			/* Loop through the var adjusts. Unfortunately we don't know how many we have
			 * from the outset, so we shall have to keep reallocing. */
			do {
				DeterministicSpriteGroupAdjust *adjust = adjusts.Append();

				/* The first var adjust doesn't have an operation specified, so we set it to add. */
				adjust->operation = adjusts.Length() == 1 ? DSGA_OP_ADD : (DeterministicSpriteGroupAdjustOperation)buf->ReadByte();
				adjust->variable  = buf->ReadByte();
				if (adjust->variable == 0x7E) {
					/* Link subroutine group */
					adjust->subroutine = GetGroupFromGroupID(setid, type, buf->ReadByte());
				} else {
					adjust->parameter = IsInsideMM(adjust->variable, 0x60, 0x80) ? buf->ReadByte() : 0;
				}

				varadjust = buf->ReadByte();
				adjust->shift_num = GB(varadjust, 0, 5);
				adjust->type      = (DeterministicSpriteGroupAdjustType)GB(varadjust, 6, 2);
				adjust->and_mask  = buf->ReadVarSize(varsize);

				if (adjust->type != DSGA_TYPE_NONE) {
					adjust->add_val    = buf->ReadVarSize(varsize);
					adjust->divmod_val = buf->ReadVarSize(varsize);
				} else {
					adjust->add_val    = 0;
					adjust->divmod_val = 0;
				}

				/* Continue reading var adjusts while bit 5 is set. */
			} while (HasBit(varadjust, 5));

			group->num_adjusts = adjusts.Length();
			group->adjusts = MallocT<DeterministicSpriteGroupAdjust>(group->num_adjusts);
			MemCpyT(group->adjusts, adjusts.Begin(), group->num_adjusts);

			group->num_ranges = buf->ReadByte();
			if (group->num_ranges > 0) group->ranges = CallocT<DeterministicSpriteGroupRange>(group->num_ranges);

			for (uint i = 0; i < group->num_ranges; i++) {
				group->ranges[i].group = GetGroupFromGroupID(setid, type, buf->ReadWord());
				group->ranges[i].low   = buf->ReadVarSize(varsize);
				group->ranges[i].high  = buf->ReadVarSize(varsize);
			}

			group->default_group = GetGroupFromGroupID(setid, type, buf->ReadWord());
			break;
		}

		/* Randomized Sprite Group */
		case 0x80: // Self scope
		case 0x83: // Parent scope
		case 0x84: // Relative scope
		{
			assert(RandomizedSpriteGroup::CanAllocateItem());
			RandomizedSpriteGroup *group = new RandomizedSpriteGroup();
			act_group = group;
			group->var_scope = HasBit(type, 1) ? VSG_SCOPE_PARENT : VSG_SCOPE_SELF;

			if (HasBit(type, 2)) {
				if (feature <= GSF_AIRCRAFT) group->var_scope = VSG_SCOPE_RELATIVE;
				group->count = buf->ReadByte();
			}

			uint8 triggers = buf->ReadByte();
			group->triggers       = GB(triggers, 0, 7);
			group->cmp_mode       = HasBit(triggers, 7) ? RSG_CMP_ALL : RSG_CMP_ANY;
			group->lowest_randbit = buf->ReadByte();
			group->num_groups     = buf->ReadByte();
			group->groups = CallocT<const SpriteGroup*>(group->num_groups);

			for (uint i = 0; i < group->num_groups; i++) {
				group->groups[i] = GetGroupFromGroupID(setid, type, buf->ReadWord());
			}

			break;
		}

		/* Neither a variable or randomized sprite group... must be a real group */
		default:
		{
			switch (feature) {
				case GSF_TRAINS:
				case GSF_ROADVEHICLES:
				case GSF_SHIPS:
				case GSF_AIRCRAFT:
				case GSF_STATIONS:
				case GSF_CANALS:
				case GSF_CARGOS:
				case GSF_AIRPORTS:
				case GSF_RAILTYPES:
				{
					byte num_loaded  = type;
					byte num_loading = buf->ReadByte();

					if (!_cur.HasValidSpriteSets(feature)) {
						grfmsg(0, "NewSpriteGroup: No sprite set to work on! Skipping");
						return;
					}

					assert(RealSpriteGroup::CanAllocateItem());
					RealSpriteGroup *group = new RealSpriteGroup();
					act_group = group;

					group->num_loaded  = num_loaded;
					group->num_loading = num_loading;
					if (num_loaded  > 0) group->loaded = CallocT<const SpriteGroup*>(num_loaded);
					if (num_loading > 0) group->loading = CallocT<const SpriteGroup*>(num_loading);

					grfmsg(6, "NewSpriteGroup: New SpriteGroup 0x%02X, %u loaded, %u loading",
							setid, num_loaded, num_loading);

					for (uint i = 0; i < num_loaded; i++) {
						uint16 spriteid = buf->ReadWord();
						group->loaded[i] = CreateGroupFromGroupID(feature, setid, type, spriteid);
						grfmsg(8, "NewSpriteGroup: + rg->loaded[%i]  = subset %u", i, spriteid);
					}

					for (uint i = 0; i < num_loading; i++) {
						uint16 spriteid = buf->ReadWord();
						group->loading[i] = CreateGroupFromGroupID(feature, setid, type, spriteid);
						grfmsg(8, "NewSpriteGroup: + rg->loading[%i] = subset %u", i, spriteid);
					}

					break;
				}

				case GSF_HOUSES:
				case GSF_AIRPORTTILES:
				case GSF_OBJECTS:
				case GSF_INDUSTRYTILES: {
					byte num_building_sprites = max((uint8)1, type);

					assert(TileLayoutSpriteGroup::CanAllocateItem());
					TileLayoutSpriteGroup *group = new TileLayoutSpriteGroup();
					act_group = group;

					/* On error, bail out immediately. Temporary GRF data was already freed */
					if (ReadSpriteLayout(buf, num_building_sprites, true, feature, false, type == 0, &group->dts)) return;
					break;
				}

				case GSF_INDUSTRIES: {
					if (type > 1) {
						grfmsg(1, "NewSpriteGroup: Unsupported industry production version %d, skipping", type);
						break;
					}

					assert(IndustryProductionSpriteGroup::CanAllocateItem());
					IndustryProductionSpriteGroup *group = new IndustryProductionSpriteGroup();
					act_group = group;
					group->version = type;
					if (type == 0) {
						for (uint i = 0; i < 3; i++) {
							group->subtract_input[i] = (int16)buf->ReadWord(); // signed
						}
						for (uint i = 0; i < 2; i++) {
							group->add_output[i] = buf->ReadWord(); // unsigned
						}
						group->again = buf->ReadByte();
					} else {
						for (uint i = 0; i < 3; i++) {
							group->subtract_input[i] = buf->ReadByte();
						}
						for (uint i = 0; i < 2; i++) {
							group->add_output[i] = buf->ReadByte();
						}
						group->again = buf->ReadByte();
					}
					break;
				}

				/* Loading of Tile Layout and Production Callback groups would happen here */
				default: grfmsg(1, "NewSpriteGroup: Unsupported feature %d, skipping", feature);
			}
		}
	}

	_cur.spritegroups[setid] = act_group;
}

static CargoID TranslateCargo(uint8 feature, uint8 ctype)
{
	if (feature == GSF_OBJECTS) {
		switch (ctype) {
			case 0:    return 0;
			case 0xFF: return CT_PURCHASE_OBJECT;
			default:
				grfmsg(1, "TranslateCargo: Invalid cargo bitnum %d for objects, skipping.", ctype);
				return CT_INVALID;
		}
	}
	/* Special cargo types for purchase list and stations */
	if (feature == GSF_STATIONS && ctype == 0xFE) return CT_DEFAULT_NA;
	if (ctype == 0xFF) return CT_PURCHASE;

	if (_cur.grffile->cargo_max == 0) {
		/* No cargo table, so use bitnum values */
		if (ctype >= 32) {
			grfmsg(1, "TranslateCargo: Cargo bitnum %d out of range (max 31), skipping.", ctype);
			return CT_INVALID;
		}

		const CargoSpec *cs;
		FOR_ALL_CARGOSPECS(cs) {
			if (cs->bitnum == ctype) {
				grfmsg(6, "TranslateCargo: Cargo bitnum %d mapped to cargo type %d.", ctype, cs->Index());
				return cs->Index();
			}
		}

		grfmsg(5, "TranslateCargo: Cargo bitnum %d not available in this climate, skipping.", ctype);
		return CT_INVALID;
	}

	/* Check if the cargo type is out of bounds of the cargo translation table */
	if (ctype >= _cur.grffile->cargo_max) {
		grfmsg(1, "TranslateCargo: Cargo type %d out of range (max %d), skipping.", ctype, _cur.grffile->cargo_max - 1);
		return CT_INVALID;
	}

	/* Look up the cargo label from the translation table */
	CargoLabel cl = _cur.grffile->cargo_list[ctype];
	if (cl == 0) {
		grfmsg(5, "TranslateCargo: Cargo type %d not available in this climate, skipping.", ctype);
		return CT_INVALID;
	}

	ctype = GetCargoIDByLabel(cl);
	if (ctype == CT_INVALID) {
		grfmsg(5, "TranslateCargo: Cargo '%c%c%c%c' unsupported, skipping.", GB(cl, 24, 8), GB(cl, 16, 8), GB(cl, 8, 8), GB(cl, 0, 8));
		return CT_INVALID;
	}

	grfmsg(6, "TranslateCargo: Cargo '%c%c%c%c' mapped to cargo type %d.", GB(cl, 24, 8), GB(cl, 16, 8), GB(cl, 8, 8), GB(cl, 0, 8), ctype);
	return ctype;
}


static bool IsValidGroupID(uint16 groupid, const char *function)
{
	if (groupid > MAX_SPRITEGROUP || _cur.spritegroups[groupid] == NULL) {
		grfmsg(1, "%s: Spritegroup 0x%04X out of range or empty, skipping.", function, groupid);
		return false;
	}

	return true;
}

static void VehicleMapSpriteGroup(ByteReader *buf, byte feature, uint8 idcount)
{
	static EngineID *last_engines;
	static uint last_engines_count;
	bool wagover = false;

	/* Test for 'wagon override' flag */
	if (HasBit(idcount, 7)) {
		wagover = true;
		/* Strip off the flag */
		idcount = GB(idcount, 0, 7);

		if (last_engines_count == 0) {
			grfmsg(0, "VehicleMapSpriteGroup: WagonOverride: No engine to do override with");
			return;
		}

		grfmsg(6, "VehicleMapSpriteGroup: WagonOverride: %u engines, %u wagons",
				last_engines_count, idcount);
	} else {
		if (last_engines_count != idcount) {
			last_engines = ReallocT(last_engines, idcount);
			last_engines_count = idcount;
		}
	}

	EngineID *engines = AllocaM(EngineID, idcount);
	for (uint i = 0; i < idcount; i++) {
		Engine *e = GetNewEngine(_cur.grffile, (VehicleType)feature, buf->ReadExtendedByte());
		if (e == NULL) {
			/* No engine could be allocated?!? Deal with it. Okay,
			 * this might look bad. Also make sure this NewGRF
			 * gets disabled, as a half loaded one is bad. */
			HandleChangeInfoResult("VehicleMapSpriteGroup", CIR_INVALID_ID, 0, 0);
			return;
		}

		engines[i] = e->index;
		if (!wagover) last_engines[i] = engines[i];
	}

	uint8 cidcount = buf->ReadByte();
	for (uint c = 0; c < cidcount; c++) {
		uint8 ctype = buf->ReadByte();
		uint16 groupid = buf->ReadWord();
		if (!IsValidGroupID(groupid, "VehicleMapSpriteGroup")) continue;

		grfmsg(8, "VehicleMapSpriteGroup: * [%d] Cargo type 0x%X, group id 0x%02X", c, ctype, groupid);

		ctype = TranslateCargo(feature, ctype);
		if (ctype == CT_INVALID) continue;

		for (uint i = 0; i < idcount; i++) {
			EngineID engine = engines[i];

			grfmsg(7, "VehicleMapSpriteGroup: [%d] Engine %d...", i, engine);

			if (wagover) {
				SetWagonOverrideSprites(engine, ctype, _cur.spritegroups[groupid], last_engines, last_engines_count);
			} else {
				SetCustomEngineSprites(engine, ctype, _cur.spritegroups[groupid]);
			}
		}
	}

	uint16 groupid = buf->ReadWord();
	if (!IsValidGroupID(groupid, "VehicleMapSpriteGroup")) return;

	grfmsg(8, "-- Default group id 0x%04X", groupid);

	for (uint i = 0; i < idcount; i++) {
		EngineID engine = engines[i];

		if (wagover) {
			SetWagonOverrideSprites(engine, CT_DEFAULT, _cur.spritegroups[groupid], last_engines, last_engines_count);
		} else {
			SetCustomEngineSprites(engine, CT_DEFAULT, _cur.spritegroups[groupid]);
			SetEngineGRF(engine, _cur.grffile);
		}
	}
}


static void CanalMapSpriteGroup(ByteReader *buf, uint8 idcount)
{
	CanalFeature *cfs = AllocaM(CanalFeature, idcount);
	for (uint i = 0; i < idcount; i++) {
		cfs[i] = (CanalFeature)buf->ReadByte();
	}

	uint8 cidcount = buf->ReadByte();
	buf->Skip(cidcount * 3);

	uint16 groupid = buf->ReadWord();
	if (!IsValidGroupID(groupid, "CanalMapSpriteGroup")) return;

	for (uint i = 0; i < idcount; i++) {
		CanalFeature cf = cfs[i];

		if (cf >= CF_END) {
			grfmsg(1, "CanalMapSpriteGroup: Canal subset %d out of range, skipping", cf);
			continue;
		}

		_water_feature[cf].grffile = _cur.grffile;
		_water_feature[cf].group = _cur.spritegroups[groupid];
	}
}


static void StationMapSpriteGroup(ByteReader *buf, uint8 idcount)
{
	uint8 *stations = AllocaM(uint8, idcount);
	for (uint i = 0; i < idcount; i++) {
		stations[i] = buf->ReadByte();
	}

	uint8 cidcount = buf->ReadByte();
	for (uint c = 0; c < cidcount; c++) {
		uint8 ctype = buf->ReadByte();
		uint16 groupid = buf->ReadWord();
		if (!IsValidGroupID(groupid, "StationMapSpriteGroup")) continue;

		ctype = TranslateCargo(GSF_STATIONS, ctype);
		if (ctype == CT_INVALID) continue;

		for (uint i = 0; i < idcount; i++) {
			StationSpec *statspec = _cur.grffile->stations == NULL ? NULL : _cur.grffile->stations[stations[i]];

			if (statspec == NULL) {
				grfmsg(1, "StationMapSpriteGroup: Station with ID 0x%02X does not exist, skipping", stations[i]);
				continue;
			}

			statspec->grf_prop.spritegroup[ctype] = _cur.spritegroups[groupid];
		}
	}

	uint16 groupid = buf->ReadWord();
	if (!IsValidGroupID(groupid, "StationMapSpriteGroup")) return;

	for (uint i = 0; i < idcount; i++) {
		StationSpec *statspec = _cur.grffile->stations == NULL ? NULL : _cur.grffile->stations[stations[i]];

		if (statspec == NULL) {
			grfmsg(1, "StationMapSpriteGroup: Station with ID 0x%02X does not exist, skipping", stations[i]);
			continue;
		}

		if (statspec->grf_prop.grffile != NULL) {
			grfmsg(1, "StationMapSpriteGroup: Station with ID 0x%02X mapped multiple times, skipping", stations[i]);
			continue;
		}

		statspec->grf_prop.spritegroup[CT_DEFAULT] = _cur.spritegroups[groupid];
		statspec->grf_prop.grffile = _cur.grffile;
		statspec->grf_prop.local_id = stations[i];
		StationClass::Assign(statspec);
	}
}


static void TownHouseMapSpriteGroup(ByteReader *buf, uint8 idcount)
{
	uint8 *houses = AllocaM(uint8, idcount);
	for (uint i = 0; i < idcount; i++) {
		houses[i] = buf->ReadByte();
	}

	/* Skip the cargo type section, we only care about the default group */
	uint8 cidcount = buf->ReadByte();
	buf->Skip(cidcount * 3);

	uint16 groupid = buf->ReadWord();
	if (!IsValidGroupID(groupid, "TownHouseMapSpriteGroup")) return;

	if (_cur.grffile->housespec == NULL) {
		grfmsg(1, "TownHouseMapSpriteGroup: No houses defined, skipping");
		return;
	}

	for (uint i = 0; i < idcount; i++) {
		HouseSpec *hs = _cur.grffile->housespec[houses[i]];

		if (hs == NULL) {
			grfmsg(1, "TownHouseMapSpriteGroup: House %d undefined, skipping.", houses[i]);
			continue;
		}

		hs->grf_prop.spritegroup[0] = _cur.spritegroups[groupid];
	}
}

static void IndustryMapSpriteGroup(ByteReader *buf, uint8 idcount)
{
	uint8 *industries = AllocaM(uint8, idcount);
	for (uint i = 0; i < idcount; i++) {
		industries[i] = buf->ReadByte();
	}

	/* Skip the cargo type section, we only care about the default group */
	uint8 cidcount = buf->ReadByte();
	buf->Skip(cidcount * 3);

	uint16 groupid = buf->ReadWord();
	if (!IsValidGroupID(groupid, "IndustryMapSpriteGroup")) return;

	if (_cur.grffile->industryspec == NULL) {
		grfmsg(1, "IndustryMapSpriteGroup: No industries defined, skipping");
		return;
	}

	for (uint i = 0; i < idcount; i++) {
		IndustrySpec *indsp = _cur.grffile->industryspec[industries[i]];

		if (indsp == NULL) {
			grfmsg(1, "IndustryMapSpriteGroup: Industry %d undefined, skipping", industries[i]);
			continue;
		}

		indsp->grf_prop.spritegroup[0] = _cur.spritegroups[groupid];
	}
}

static void IndustrytileMapSpriteGroup(ByteReader *buf, uint8 idcount)
{
	uint8 *indtiles = AllocaM(uint8, idcount);
	for (uint i = 0; i < idcount; i++) {
		indtiles[i] = buf->ReadByte();
	}

	/* Skip the cargo type section, we only care about the default group */
	uint8 cidcount = buf->ReadByte();
	buf->Skip(cidcount * 3);

	uint16 groupid = buf->ReadWord();
	if (!IsValidGroupID(groupid, "IndustrytileMapSpriteGroup")) return;

	if (_cur.grffile->indtspec == NULL) {
		grfmsg(1, "IndustrytileMapSpriteGroup: No industry tiles defined, skipping");
		return;
	}

	for (uint i = 0; i < idcount; i++) {
		IndustryTileSpec *indtsp = _cur.grffile->indtspec[indtiles[i]];

		if (indtsp == NULL) {
			grfmsg(1, "IndustrytileMapSpriteGroup: Industry tile %d undefined, skipping", indtiles[i]);
			continue;
		}

		indtsp->grf_prop.spritegroup[0] = _cur.spritegroups[groupid];
	}
}

static void CargoMapSpriteGroup(ByteReader *buf, uint8 idcount)
{
	CargoID *cargos = AllocaM(CargoID, idcount);
	for (uint i = 0; i < idcount; i++) {
		cargos[i] = buf->ReadByte();
	}

	/* Skip the cargo type section, we only care about the default group */
	uint8 cidcount = buf->ReadByte();
	buf->Skip(cidcount * 3);

	uint16 groupid = buf->ReadWord();
	if (!IsValidGroupID(groupid, "CargoMapSpriteGroup")) return;

	for (uint i = 0; i < idcount; i++) {
		CargoID cid = cargos[i];

		if (cid >= NUM_CARGO) {
			grfmsg(1, "CargoMapSpriteGroup: Cargo ID %d out of range, skipping", cid);
			continue;
		}

		CargoSpec *cs = CargoSpec::Get(cid);
		cs->grffile = _cur.grffile;
		cs->group = _cur.spritegroups[groupid];
	}
}

static void ObjectMapSpriteGroup(ByteReader *buf, uint8 idcount)
{
	if (_cur.grffile->objectspec == NULL) {
		grfmsg(1, "ObjectMapSpriteGroup: No object tiles defined, skipping");
		return;
	}

	uint8 *objects = AllocaM(uint8, idcount);
	for (uint i = 0; i < idcount; i++) {
		objects[i] = buf->ReadByte();
	}

	uint8 cidcount = buf->ReadByte();
	for (uint c = 0; c < cidcount; c++) {
		uint8 ctype = buf->ReadByte();
		uint16 groupid = buf->ReadWord();
		if (!IsValidGroupID(groupid, "ObjectMapSpriteGroup")) continue;

		ctype = TranslateCargo(GSF_OBJECTS, ctype);
		if (ctype == CT_INVALID) continue;

		for (uint i = 0; i < idcount; i++) {
			ObjectSpec *spec = _cur.grffile->objectspec[objects[i]];

			if (spec == NULL) {
				grfmsg(1, "ObjectMapSpriteGroup: Object with ID 0x%02X undefined, skipping", objects[i]);
				continue;
			}

			spec->grf_prop.spritegroup[ctype] = _cur.spritegroups[groupid];
		}
	}

	uint16 groupid = buf->ReadWord();
	if (!IsValidGroupID(groupid, "ObjectMapSpriteGroup")) return;

	for (uint i = 0; i < idcount; i++) {
		ObjectSpec *spec = _cur.grffile->objectspec[objects[i]];

		if (spec == NULL) {
			grfmsg(1, "ObjectMapSpriteGroup: Object with ID 0x%02X undefined, skipping", objects[i]);
			continue;
		}

		if (spec->grf_prop.grffile != NULL) {
			grfmsg(1, "ObjectMapSpriteGroup: Object with ID 0x%02X mapped multiple times, skipping", objects[i]);
			continue;
		}

		spec->grf_prop.spritegroup[0] = _cur.spritegroups[groupid];
		spec->grf_prop.grffile        = _cur.grffile;
		spec->grf_prop.local_id       = objects[i];
	}
}

static void RailTypeMapSpriteGroup(ByteReader *buf, uint8 idcount)
{
	uint8 *railtypes = AllocaM(uint8, idcount);
	for (uint i = 0; i < idcount; i++) {
		railtypes[i] = _cur.grffile->railtype_map[buf->ReadByte()];
	}

	uint8 cidcount = buf->ReadByte();
	for (uint c = 0; c < cidcount; c++) {
		uint8 ctype = buf->ReadByte();
		uint16 groupid = buf->ReadWord();
		if (!IsValidGroupID(groupid, "RailTypeMapSpriteGroup")) continue;

		if (ctype >= RTSG_END) continue;

		extern RailtypeInfo _railtypes[RAILTYPE_END];
		for (uint i = 0; i < idcount; i++) {
			if (railtypes[i] != INVALID_RAILTYPE) {
				RailtypeInfo *rti = &_railtypes[railtypes[i]];

				rti->grffile[ctype] = _cur.grffile;
				rti->group[ctype] = _cur.spritegroups[groupid];
			}
		}
	}

	/* Railtypes do not use the default group. */
	buf->ReadWord();
}

static void AirportMapSpriteGroup(ByteReader *buf, uint8 idcount)
{
	uint8 *airports = AllocaM(uint8, idcount);
	for (uint i = 0; i < idcount; i++) {
		airports[i] = buf->ReadByte();
	}

	/* Skip the cargo type section, we only care about the default group */
	uint8 cidcount = buf->ReadByte();
	buf->Skip(cidcount * 3);

	uint16 groupid = buf->ReadWord();
	if (!IsValidGroupID(groupid, "AirportMapSpriteGroup")) return;

	if (_cur.grffile->airportspec == NULL) {
		grfmsg(1, "AirportMapSpriteGroup: No airports defined, skipping");
		return;
	}

	for (uint i = 0; i < idcount; i++) {
		AirportSpec *as = _cur.grffile->airportspec[airports[i]];

		if (as == NULL) {
			grfmsg(1, "AirportMapSpriteGroup: Airport %d undefined, skipping", airports[i]);
			continue;
		}

		as->grf_prop.spritegroup[0] = _cur.spritegroups[groupid];
	}
}

static void AirportTileMapSpriteGroup(ByteReader *buf, uint8 idcount)
{
	uint8 *airptiles = AllocaM(uint8, idcount);
	for (uint i = 0; i < idcount; i++) {
		airptiles[i] = buf->ReadByte();
	}

	/* Skip the cargo type section, we only care about the default group */
	uint8 cidcount = buf->ReadByte();
	buf->Skip(cidcount * 3);

	uint16 groupid = buf->ReadWord();
	if (!IsValidGroupID(groupid, "AirportTileMapSpriteGroup")) return;

	if (_cur.grffile->airtspec == NULL) {
		grfmsg(1, "AirportTileMapSpriteGroup: No airport tiles defined, skipping");
		return;
	}

	for (uint i = 0; i < idcount; i++) {
		AirportTileSpec *airtsp = _cur.grffile->airtspec[airptiles[i]];

		if (airtsp == NULL) {
			grfmsg(1, "AirportTileMapSpriteGroup: Airport tile %d undefined, skipping", airptiles[i]);
			continue;
		}

		airtsp->grf_prop.spritegroup[0] = _cur.spritegroups[groupid];
	}
}


/* Action 0x03 */
static void FeatureMapSpriteGroup(ByteReader *buf)
{
	/* <03> <feature> <n-id> <ids>... <num-cid> [<cargo-type> <cid>]... <def-cid>
	 * id-list    := [<id>] [id-list]
	 * cargo-list := <cargo-type> <cid> [cargo-list]
	 *
	 * B feature       see action 0
	 * B n-id          bits 0-6: how many IDs this definition applies to
	 *                 bit 7: if set, this is a wagon override definition (see below)
	 * B ids           the IDs for which this definition applies
	 * B num-cid       number of cargo IDs (sprite group IDs) in this definition
	 *                 can be zero, in that case the def-cid is used always
	 * B cargo-type    type of this cargo type (e.g. mail=2, wood=7, see below)
	 * W cid           cargo ID (sprite group ID) for this type of cargo
	 * W def-cid       default cargo ID (sprite group ID) */

	uint8 feature = buf->ReadByte();
	uint8 idcount = buf->ReadByte();

	/* If idcount is zero, this is a feature callback */
	if (idcount == 0) {
		/* Skip number of cargo ids? */
		buf->ReadByte();
		uint16 groupid = buf->ReadWord();
		if (!IsValidGroupID(groupid, "FeatureMapSpriteGroup")) return;

		grfmsg(6, "FeatureMapSpriteGroup: Adding generic feature callback for feature %d", feature);

		AddGenericCallback(feature, _cur.grffile, _cur.spritegroups[groupid]);
		return;
	}

	/* Mark the feature as used by the grf (generic callbacks do not count) */
	SetBit(_cur.grffile->grf_features, feature);

	grfmsg(6, "FeatureMapSpriteGroup: Feature %d, %d ids", feature, idcount);

	switch (feature) {
		case GSF_TRAINS:
		case GSF_ROADVEHICLES:
		case GSF_SHIPS:
		case GSF_AIRCRAFT:
			VehicleMapSpriteGroup(buf, feature, idcount);
			return;

		case GSF_CANALS:
			CanalMapSpriteGroup(buf, idcount);
			return;

		case GSF_STATIONS:
			StationMapSpriteGroup(buf, idcount);
			return;

		case GSF_HOUSES:
			TownHouseMapSpriteGroup(buf, idcount);
			return;

		case GSF_INDUSTRIES:
			IndustryMapSpriteGroup(buf, idcount);
			return;

		case GSF_INDUSTRYTILES:
			IndustrytileMapSpriteGroup(buf, idcount);
			return;

		case GSF_CARGOS:
			CargoMapSpriteGroup(buf, idcount);
			return;

		case GSF_AIRPORTS:
			AirportMapSpriteGroup(buf, idcount);
			return;

		case GSF_OBJECTS:
			ObjectMapSpriteGroup(buf, idcount);
			break;

		case GSF_RAILTYPES:
			RailTypeMapSpriteGroup(buf, idcount);
			break;

		case GSF_AIRPORTTILES:
			AirportTileMapSpriteGroup(buf, idcount);
			return;

		default:
			grfmsg(1, "FeatureMapSpriteGroup: Unsupported feature %d, skipping", feature);
			return;
	}
}

/* Action 0x04 */
static void FeatureNewName(ByteReader *buf)
{
	/* <04> <veh-type> <language-id> <num-veh> <offset> <data...>
	 *
	 * B veh-type      see action 0 (as 00..07, + 0A
	 *                 But IF veh-type = 48, then generic text
	 * B language-id   If bit 6 is set, This is the extended language scheme,
	 *                 with up to 64 language.
	 *                 Otherwise, it is a mapping where set bits have meaning
	 *                 0 = american, 1 = english, 2 = german, 3 = french, 4 = spanish
	 *                 Bit 7 set means this is a generic text, not a vehicle one (or else)
	 * B num-veh       number of vehicles which are getting a new name
	 * B/W offset      number of the first vehicle that gets a new name
	 *                 Byte : ID of vehicle to change
	 *                 Word : ID of string to change/add
	 * S data          new texts, each of them zero-terminated, after
	 *                 which the next name begins. */

	bool new_scheme = _cur.grffile->grf_version >= 7;

	uint8 feature  = buf->ReadByte();
	uint8 lang     = buf->ReadByte();
	uint8 num      = buf->ReadByte();
	bool generic   = HasBit(lang, 7);
	uint16 id;
	if (generic) {
		id = buf->ReadWord();
	} else if (feature <= GSF_AIRCRAFT) {
		id = buf->ReadExtendedByte();
	} else {
		id = buf->ReadByte();
	}

	ClrBit(lang, 7);

	uint16 endid = id + num;

	grfmsg(6, "FeatureNewName: About to rename engines %d..%d (feature %d) in language 0x%02X",
	               id, endid, feature, lang);

	for (; id < endid && buf->HasData(); id++) {
		const char *name = buf->ReadString();
		grfmsg(8, "FeatureNewName: 0x%04X <- %s", id, name);

		switch (feature) {
			case GSF_TRAINS:
			case GSF_ROADVEHICLES:
			case GSF_SHIPS:
			case GSF_AIRCRAFT:
				if (!generic) {
					Engine *e = GetNewEngine(_cur.grffile, (VehicleType)feature, id, HasBit(_cur.grfconfig->flags, GCF_STATIC));
					if (e == NULL) break;
					StringID string = AddGRFString(_cur.grffile->grfid, e->index, lang, new_scheme, false, name, e->info.string_id);
					e->info.string_id = string;
				} else {
					AddGRFString(_cur.grffile->grfid, id, lang, new_scheme, true, name, STR_UNDEFINED);
				}
				break;

			case GSF_INDUSTRIES: {
				AddGRFString(_cur.grffile->grfid, id, lang, new_scheme, true, name, STR_UNDEFINED);
				break;
			}

			case GSF_HOUSES:
			default:
				switch (GB(id, 8, 8)) {
					case 0xC4: // Station class name
						if (_cur.grffile->stations == NULL || _cur.grffile->stations[GB(id, 0, 8)] == NULL) {
							grfmsg(1, "FeatureNewName: Attempt to name undefined station 0x%X, ignoring", GB(id, 0, 8));
						} else {
							StationClassID cls_id = _cur.grffile->stations[GB(id, 0, 8)]->cls_id;
							StationClass::SetName(cls_id, AddGRFString(_cur.grffile->grfid, id, lang, new_scheme, false, name, STR_UNDEFINED));
						}
						break;

					case 0xC5: // Station name
						if (_cur.grffile->stations == NULL || _cur.grffile->stations[GB(id, 0, 8)] == NULL) {
							grfmsg(1, "FeatureNewName: Attempt to name undefined station 0x%X, ignoring", GB(id, 0, 8));
						} else {
							_cur.grffile->stations[GB(id, 0, 8)]->name = AddGRFString(_cur.grffile->grfid, id, lang, new_scheme, false, name, STR_UNDEFINED);
						}
						break;

					case 0xC7: // Airporttile name
						if (_cur.grffile->airtspec == NULL || _cur.grffile->airtspec[GB(id, 0, 8)] == NULL) {
							grfmsg(1, "FeatureNewName: Attempt to name undefined airport tile 0x%X, ignoring", GB(id, 0, 8));
						} else {
							_cur.grffile->airtspec[GB(id, 0, 8)]->name = AddGRFString(_cur.grffile->grfid, id, lang, new_scheme, false, name, STR_UNDEFINED);
						}
						break;

					case 0xC9: // House name
						if (_cur.grffile->housespec == NULL || _cur.grffile->housespec[GB(id, 0, 8)] == NULL) {
							grfmsg(1, "FeatureNewName: Attempt to name undefined house 0x%X, ignoring.", GB(id, 0, 8));
						} else {
							_cur.grffile->housespec[GB(id, 0, 8)]->building_name = AddGRFString(_cur.grffile->grfid, id, lang, new_scheme, false, name, STR_UNDEFINED);
						}
						break;

					case 0xD0:
					case 0xD1:
					case 0xD2:
					case 0xD3:
					case 0xDC:
						AddGRFString(_cur.grffile->grfid, id, lang, new_scheme, true, name, STR_UNDEFINED);
						break;

					default:
						grfmsg(7, "FeatureNewName: Unsupported ID (0x%04X)", id);
						break;
				}
				break;
		}
	}
}

/**
 * Sanitize incoming sprite offsets for Action 5 graphics replacements.
 * @param num         The number of sprites to load.
 * @param offset      Offset from the base.
 * @param max_sprites The maximum number of sprites that can be loaded in this action 5.
 * @param name        Used for error warnings.
 * @return The number of sprites that is going to be skipped.
 */
static uint16 SanitizeSpriteOffset(uint16& num, uint16 offset, int max_sprites, const char *name)
{

	if (offset >= max_sprites) {
		grfmsg(1, "GraphicsNew: %s sprite offset must be less than %i, skipping", name, max_sprites);
		uint orig_num = num;
		num = 0;
		return orig_num;
	}

	if (offset + num > max_sprites) {
		grfmsg(4, "GraphicsNew: %s sprite overflow, truncating...", name);
		uint orig_num = num;
		num = max(max_sprites - offset, 0);
		return orig_num - num;
	}

	return 0;
}


/** The type of action 5 type. */
enum Action5BlockType {
	A5BLOCK_FIXED,                ///< Only allow replacing a whole block of sprites. (TTDP compatible)
	A5BLOCK_ALLOW_OFFSET,         ///< Allow replacing any subset by specifiing an offset.
	A5BLOCK_INVALID,              ///< unknown/not-implemented type
};
/** Information about a single action 5 type. */
struct Action5Type {
	Action5BlockType block_type;  ///< How is this Action5 type processed?
	SpriteID sprite_base;         ///< Load the sprites starting from this sprite.
	uint16 min_sprites;           ///< If the Action5 contains less sprites, the whole block will be ignored.
	uint16 max_sprites;           ///< If the Action5 contains more sprites, only the first max_sprites sprites will be used.
	const char *name;             ///< Name for error messages.
};

/** The information about action 5 types. */
static const Action5Type _action5_types[] = {
	/* Note: min_sprites should not be changed. Therefore these constants are directly here and not in sprites.h */
	/* 0x00 */ { A5BLOCK_INVALID,      0,                            0, 0,                                           "Type 0x00"                },
	/* 0x01 */ { A5BLOCK_INVALID,      0,                            0, 0,                                           "Type 0x01"                },
	/* 0x02 */ { A5BLOCK_INVALID,      0,                            0, 0,                                           "Type 0x02"                },
	/* 0x03 */ { A5BLOCK_INVALID,      0,                            0, 0,                                           "Type 0x03"                },
	/* 0x04 */ { A5BLOCK_ALLOW_OFFSET, SPR_SIGNALS_BASE,             1, PRESIGNAL_SEMAPHORE_AND_PBS_SPRITE_COUNT,    "Signal graphics"          },
	/* 0x05 */ { A5BLOCK_ALLOW_OFFSET, SPR_ELRAIL_BASE,              1, ELRAIL_SPRITE_COUNT,                         "Catenary graphics"        },
	/* 0x06 */ { A5BLOCK_ALLOW_OFFSET, SPR_SLOPES_BASE,              1, NORMAL_AND_HALFTILE_FOUNDATION_SPRITE_COUNT, "Foundation graphics"      },
	/* 0x07 */ { A5BLOCK_INVALID,      0,                           75, 0,                                           "TTDP GUI graphics"        }, // Not used by OTTD.
	/* 0x08 */ { A5BLOCK_ALLOW_OFFSET, SPR_CANALS_BASE,              1, CANALS_SPRITE_COUNT,                         "Canal graphics"           },
	/* 0x09 */ { A5BLOCK_ALLOW_OFFSET, SPR_ONEWAY_BASE,              1, ONEWAY_SPRITE_COUNT,                         "One way road graphics"    },
	/* 0x0A */ { A5BLOCK_ALLOW_OFFSET, SPR_2CCMAP_BASE,              1, TWOCCMAP_SPRITE_COUNT,                       "2CC colour maps"          },
	/* 0x0B */ { A5BLOCK_ALLOW_OFFSET, SPR_TRAMWAY_BASE,             1, TRAMWAY_SPRITE_COUNT,                        "Tramway graphics"         },
	/* 0x0C */ { A5BLOCK_INVALID,      0,                          133, 0,                                           "Snowy temperate tree"     }, // Not yet used by OTTD.
	/* 0x0D */ { A5BLOCK_FIXED,        SPR_SHORE_BASE,              16, SPR_SHORE_SPRITE_COUNT,                      "Shore graphics"           },
	/* 0x0E */ { A5BLOCK_INVALID,      0,                            0, 0,                                           "New Signals graphics"     }, // Not yet used by OTTD.
	/* 0x0F */ { A5BLOCK_ALLOW_OFFSET, SPR_TRACKS_FOR_SLOPES_BASE,   1, TRACKS_FOR_SLOPES_SPRITE_COUNT,              "Sloped rail track"        },
	/* 0x10 */ { A5BLOCK_ALLOW_OFFSET, SPR_AIRPORTX_BASE,            1, AIRPORTX_SPRITE_COUNT,                       "Airport graphics"         },
	/* 0x11 */ { A5BLOCK_ALLOW_OFFSET, SPR_ROADSTOP_BASE,            1, ROADSTOP_SPRITE_COUNT,                       "Road stop graphics"       },
	/* 0x12 */ { A5BLOCK_ALLOW_OFFSET, SPR_AQUEDUCT_BASE,            1, AQUEDUCT_SPRITE_COUNT,                       "Aqueduct graphics"        },
	/* 0x13 */ { A5BLOCK_ALLOW_OFFSET, SPR_AUTORAIL_BASE,            1, AUTORAIL_SPRITE_COUNT,                       "Autorail graphics"        },
	/* 0x14 */ { A5BLOCK_ALLOW_OFFSET, SPR_FLAGS_BASE,               1, FLAGS_SPRITE_COUNT,                          "Flag graphics"            },
	/* 0x15 */ { A5BLOCK_ALLOW_OFFSET, SPR_OPENTTD_BASE,             1, OPENTTD_SPRITE_COUNT,                        "OpenTTD GUI graphics"     },
	/* 0x16 */ { A5BLOCK_ALLOW_OFFSET, SPR_AIRPORT_PREVIEW_BASE,     1, SPR_AIRPORT_PREVIEW_COUNT,                   "Airport preview graphics" },
};

/* Action 0x05 */
static void GraphicsNew(ByteReader *buf)
{
	/* <05> <graphics-type> <num-sprites> <other data...>
	 *
	 * B graphics-type What set of graphics the sprites define.
	 * E num-sprites   How many sprites are in this set?
	 * V other data    Graphics type specific data.  Currently unused. */
	/* TODO */

	uint8 type = buf->ReadByte();
	uint16 num = buf->ReadExtendedByte();
	uint16 offset = HasBit(type, 7) ? buf->ReadExtendedByte() : 0;
	ClrBit(type, 7); // Clear the high bit as that only indicates whether there is an offset.

	if ((type == 0x0D) && (num == 10) && _cur.grffile->is_ottdfile) {
		/* Special not-TTDP-compatible case used in openttd.grf
		 * Missing shore sprites and initialisation of SPR_SHORE_BASE */
		grfmsg(2, "GraphicsNew: Loading 10 missing shore sprites from extra grf.");
		LoadNextSprite(SPR_SHORE_BASE +  0, _cur.file_index, _cur.nfo_line++); // SLOPE_STEEP_S
		LoadNextSprite(SPR_SHORE_BASE +  5, _cur.file_index, _cur.nfo_line++); // SLOPE_STEEP_W
		LoadNextSprite(SPR_SHORE_BASE +  7, _cur.file_index, _cur.nfo_line++); // SLOPE_WSE
		LoadNextSprite(SPR_SHORE_BASE + 10, _cur.file_index, _cur.nfo_line++); // SLOPE_STEEP_N
		LoadNextSprite(SPR_SHORE_BASE + 11, _cur.file_index, _cur.nfo_line++); // SLOPE_NWS
		LoadNextSprite(SPR_SHORE_BASE + 13, _cur.file_index, _cur.nfo_line++); // SLOPE_ENW
		LoadNextSprite(SPR_SHORE_BASE + 14, _cur.file_index, _cur.nfo_line++); // SLOPE_SEN
		LoadNextSprite(SPR_SHORE_BASE + 15, _cur.file_index, _cur.nfo_line++); // SLOPE_STEEP_E
		LoadNextSprite(SPR_SHORE_BASE + 16, _cur.file_index, _cur.nfo_line++); // SLOPE_EW
		LoadNextSprite(SPR_SHORE_BASE + 17, _cur.file_index, _cur.nfo_line++); // SLOPE_NS
		if (_loaded_newgrf_features.shore == SHORE_REPLACE_NONE) _loaded_newgrf_features.shore = SHORE_REPLACE_ONLY_NEW;
		return;
	}

	/* Supported type? */
	if ((type >= lengthof(_action5_types)) || (_action5_types[type].block_type == A5BLOCK_INVALID)) {
		grfmsg(2, "GraphicsNew: Custom graphics (type 0x%02X) sprite block of length %u (unimplemented, ignoring)", type, num);
		_cur.skip_sprites = num;
		return;
	}

	const Action5Type *action5_type = &_action5_types[type];

	/* Contrary to TTDP we allow always to specify too few sprites as we allow always an offset,
	 * except for the long version of the shore type:
	 * Ignore offset if not allowed */
	if ((action5_type->block_type != A5BLOCK_ALLOW_OFFSET) && (offset != 0)) {
		grfmsg(1, "GraphicsNew: %s (type 0x%02X) do not allow an <offset> field. Ignoring offset.", action5_type->name, type);
		offset = 0;
	}

	/* Ignore action5 if too few sprites are specified. (for TTDP compatibility)
	 * This does not make sense, if <offset> is allowed */
	if ((action5_type->block_type == A5BLOCK_FIXED) && (num < action5_type->min_sprites)) {
		grfmsg(1, "GraphicsNew: %s (type 0x%02X) count must be at least %d. Only %d were specified. Skipping.", action5_type->name, type, action5_type->min_sprites, num);
		_cur.skip_sprites = num;
		return;
	}

	/* Load at most max_sprites sprites. Skip remaining sprites. (for compatibility with TTDP and future extentions) */
	uint16 skip_num = SanitizeSpriteOffset(num, offset, action5_type->max_sprites, action5_type->name);
	SpriteID replace = action5_type->sprite_base + offset;

	/* Load <num> sprites starting from <replace>, then skip <skip_num> sprites. */
	grfmsg(2, "GraphicsNew: Replacing sprites %d to %d of %s (type 0x%02X) at SpriteID 0x%04X", offset, offset + num - 1, action5_type->name, type, replace);

	for (; num > 0; num--) {
		_cur.nfo_line++;
		LoadNextSprite(replace == 0 ? _cur.spriteid++ : replace++, _cur.file_index, _cur.nfo_line);
	}

	if (type == 0x0D) _loaded_newgrf_features.shore = SHORE_REPLACE_ACTION_5;

	_cur.skip_sprites = skip_num;
}

/* Action 0x05 (SKIP) */
static void SkipAct5(ByteReader *buf)
{
	/* Ignore type byte */
	buf->ReadByte();

	/* Skip the sprites of this action */
	_cur.skip_sprites = buf->ReadExtendedByte();

	grfmsg(3, "SkipAct5: Skipping %d sprites", _cur.skip_sprites);
}

/**
 * Check whether we are (obviously) missing some of the extra
 * (Action 0x05) sprites that we like to use.
 * When missing sprites are found a warning will be shown.
 */
void CheckForMissingSprites()
{
	/* Don't break out quickly, but allow to check the other
	 * sprites as well, so we can give the best information. */
	bool missing = false;
	for (uint8 i = 0; i < lengthof(_action5_types); i++) {
		const Action5Type *type = &_action5_types[i];
		if (type->block_type == A5BLOCK_INVALID) continue;

		for (uint j = 0; j < type->max_sprites; j++) {
			if (!SpriteExists(type->sprite_base + j)) {
				DEBUG(grf, 0, "%s sprites are missing", type->name);
				missing = true;
				/* No need to log more of the same. */
				break;
			}
		}
	}

	if (missing) {
		ShowErrorMessage(STR_NEWGRF_ERROR_MISSING_SPRITES, INVALID_STRING_ID, WL_CRITICAL);
	}
}

/**
 * Reads a variable common to VarAction2 and Action7/9/D.
 *
 * Returns VarAction2 variable 'param' resp. Action7/9/D variable '0x80 + param'.
 * If a variable is not accessible from all four actions, it is handled in the action specific functions.
 *
 * @param param variable number (as for VarAction2, for Action7/9/D you have to subtract 0x80 first).
 * @param value returns the value of the variable.
 * @param grffile NewGRF querying the variable
 * @return true iff the variable is known and the value is returned in 'value'.
 */
bool GetGlobalVariable(byte param, uint32 *value, const GRFFile *grffile)
{
	switch (param) {
		case 0x00: // current date
			*value = max(_date - DAYS_TILL_ORIGINAL_BASE_YEAR, 0);
			return true;

		case 0x01: // current year
			*value = Clamp(_cur_year, ORIGINAL_BASE_YEAR, ORIGINAL_MAX_YEAR) - ORIGINAL_BASE_YEAR;
			return true;

		case 0x02: { // detailed date information: month of year (bit 0-7), day of month (bit 8-12), leap year (bit 15), day of year (bit 16-24)
			YearMonthDay ymd;
			ConvertDateToYMD(_date, &ymd);
			Date start_of_year = ConvertYMDToDate(ymd.year, 0, 1);
			*value = ymd.month | (ymd.day - 1) << 8 | (IsLeapYear(ymd.year) ? 1 << 15 : 0) | (_date - start_of_year) << 16;
			return true;
		}

		case 0x03: // current climate, 0=temp, 1=arctic, 2=trop, 3=toyland
			*value = _settings_game.game_creation.landscape;
			return true;

		case 0x06: // road traffic side, bit 4 clear=left, set=right
			*value = _settings_game.vehicle.road_side << 4;
			return true;

		case 0x09: // date fraction
			*value = _date_fract * 885;
			return true;

		case 0x0A: // animation counter
			*value = _tick_counter;
			return true;

		case 0x0B: { // TTDPatch version
			uint major    = 2;
			uint minor    = 6;
			uint revision = 1; // special case: 2.0.1 is 2.0.10
			uint build    = 1382;
			*value = (major << 24) | (minor << 20) | (revision << 16) | build;
			return true;
		}

		case 0x0D: // TTD Version, 00=DOS, 01=Windows
			*value = _cur.grfconfig->palette & GRFP_USE_MASK;
			return true;

		case 0x0E: // Y-offset for train sprites
			*value = _cur.grffile->traininfo_vehicle_pitch;
			return true;

		case 0x0F: // Rail track type cost factors
			*value = 0;
			SB(*value, 0, 8, GetRailTypeInfo(RAILTYPE_RAIL)->cost_multiplier); // normal rail
			if (_settings_game.vehicle.disable_elrails) {
				/* skip elrail multiplier - disabled */
				SB(*value, 8, 8, GetRailTypeInfo(RAILTYPE_MONO)->cost_multiplier); // monorail
			} else {
				SB(*value, 8, 8, GetRailTypeInfo(RAILTYPE_ELECTRIC)->cost_multiplier); // electified railway
				/* Skip monorail multiplier - no space in result */
			}
			SB(*value, 16, 8, GetRailTypeInfo(RAILTYPE_MAGLEV)->cost_multiplier); // maglev
			return true;

		case 0x11: // current rail tool type
			*value = 0; // constant fake value to avoid desync
			return true;

		case 0x12: // Game mode
			*value = _game_mode;
			return true;

		/* case 0x13: // Tile refresh offset to left    not implemented */
		/* case 0x14: // Tile refresh offset to right   not implemented */
		/* case 0x15: // Tile refresh offset upwards    not implemented */
		/* case 0x16: // Tile refresh offset downwards  not implemented */
		/* case 0x17: // temperate snow line            not implemented */

		case 0x1A: // Always -1
			*value = UINT_MAX;
			return true;

		case 0x1B: // Display options
			*value = 0x3F; // constant fake value to avoid desync
			return true;

		case 0x1D: // TTD Platform, 00=TTDPatch, 01=OpenTTD
			*value = 1;
			return true;

		case 0x1E: // Miscellaneous GRF features
			*value = _misc_grf_features;

			/* Add the local flags */
			assert(!HasBit(*value, GMB_TRAIN_WIDTH_32_PIXELS));
			if (_cur.grffile->traininfo_vehicle_width == VEHICLEINFO_FULL_VEHICLE_WIDTH) SetBit(*value, GMB_TRAIN_WIDTH_32_PIXELS);
			return true;

		/* case 0x1F: // locale dependent settings not implemented to avoid desync */

		case 0x20: { // snow line height
			byte snowline = GetSnowLine();
			if (_settings_game.game_creation.landscape == LT_ARCTIC && snowline <= MAX_TILE_HEIGHT) {
				*value = Clamp(snowline * (grffile->grf_version >= 8 ? 1 : TILE_HEIGHT), 0, 0xFE);
			} else {
				/* No snow */
				*value = 0xFF;
			}
			return true;
		}

		case 0x21: // OpenTTD version
			*value = _openttd_newgrf_version;
			return true;

		case 0x22: // difficulty level
			*value = _settings_game.difficulty.diff_level;
			return true;

		case 0x23: // long format date
			*value = _date;
			return true;

		case 0x24: // long format year
			*value = _cur_year;
			return true;

		default: return false;
	}
}

static uint32 GetParamVal(byte param, uint32 *cond_val)
{
	/* First handle variable common with VarAction2 */
	uint32 value;
	if (GetGlobalVariable(param - 0x80, &value, _cur.grffile)) return value;

	/* Non-common variable */
	switch (param) {
		case 0x84: { // GRF loading stage
			uint32 res = 0;

			if (_cur.stage > GLS_INIT) SetBit(res, 0);
			if (_cur.stage == GLS_RESERVE) SetBit(res, 8);
			if (_cur.stage == GLS_ACTIVATION) SetBit(res, 9);
			return res;
		}

		case 0x85: // TTDPatch flags, only for bit tests
			if (cond_val == NULL) {
				/* Supported in Action 0x07 and 0x09, not 0x0D */
				return 0;
			} else {
				uint32 param_val = _ttdpatch_flags[*cond_val / 0x20];
				*cond_val %= 0x20;
				return param_val;
			}

		case 0x88: // GRF ID check
			return 0;

		/* case 0x99: Global ID offest not implemented */

		default:
			/* GRF Parameter */
			if (param < 0x80) return _cur.grffile->GetParam(param);

			/* In-game variable. */
			grfmsg(1, "Unsupported in-game variable 0x%02X", param);
			return UINT_MAX;
	}
}

/* Action 0x06 */
static void CfgApply(ByteReader *buf)
{
	/* <06> <param-num> <param-size> <offset> ... <FF>
	 *
	 * B param-num     Number of parameter to substitute (First = "zero")
	 *                 Ignored if that parameter was not specified in newgrf.cfg
	 * B param-size    How many bytes to replace.  If larger than 4, the
	 *                 bytes of the following parameter are used.  In that
	 *                 case, nothing is applied unless *all* parameters
	 *                 were specified.
	 * B offset        Offset into data from beginning of next sprite
	 *                 to place where parameter is to be stored. */

	/* Preload the next sprite */
	size_t pos = FioGetPos();
	uint16 num = FioReadWord();
	uint8 type = FioReadByte();
	byte *preload_sprite = NULL;

	/* Check if the sprite is a pseudo sprite. We can't operate on real sprites. */
	if (type == 0xFF) {
		preload_sprite = MallocT<byte>(num);
		FioReadBlock(preload_sprite, num);
	}

	/* Reset the file position to the start of the next sprite */
	FioSeekTo(pos, SEEK_SET);

	if (type != 0xFF) {
		grfmsg(2, "CfgApply: Ignoring (next sprite is real, unsupported)");
		free(preload_sprite);
		return;
	}

	GRFLocation location(_cur.grfconfig->ident.grfid, _cur.nfo_line + 1);
	GRFLineToSpriteOverride::iterator it = _grf_line_to_action6_sprite_override.find(location);
	if (it != _grf_line_to_action6_sprite_override.end()) {
		free(preload_sprite);
		preload_sprite = _grf_line_to_action6_sprite_override[location];
	} else {
		_grf_line_to_action6_sprite_override[location] = preload_sprite;
	}

	/* Now perform the Action 0x06 on our data. */

	for (;;) {
		uint i;
		uint param_num;
		uint param_size;
		uint offset;
		bool add_value;

		/* Read the parameter to apply. 0xFF indicates no more data to change. */
		param_num = buf->ReadByte();
		if (param_num == 0xFF) break;

		/* Get the size of the parameter to use. If the size covers multiple
		 * double words, sequential parameter values are used. */
		param_size = buf->ReadByte();

		/* Bit 7 of param_size indicates we should add to the original value
		 * instead of replacing it. */
		add_value  = HasBit(param_size, 7);
		param_size = GB(param_size, 0, 7);

		/* Where to apply the data to within the pseudo sprite data. */
		offset     = buf->ReadExtendedByte();

		/* If the parameter is a GRF parameter (not an internal variable) check
		 * if it (and all further sequential parameters) has been defined. */
		if (param_num < 0x80 && (param_num + (param_size - 1) / 4) >= _cur.grffile->param_end) {
			grfmsg(2, "CfgApply: Ignoring (param %d not set)", (param_num + (param_size - 1) / 4));
			break;
		}

		grfmsg(8, "CfgApply: Applying %u bytes from parameter 0x%02X at offset 0x%04X", param_size, param_num, offset);

		bool carry = false;
		for (i = 0; i < param_size && offset + i < num; i++) {
			uint32 value = GetParamVal(param_num + i / 4, NULL);
			/* Reset carry flag for each iteration of the variable (only really
			 * matters if param_size is greater than 4) */
			if (i % 4 == 0) carry = false;

			if (add_value) {
				uint new_value = preload_sprite[offset + i] + GB(value, (i % 4) * 8, 8) + (carry ? 1 : 0);
				preload_sprite[offset + i] = GB(new_value, 0, 8);
				/* Check if the addition overflowed */
				carry = new_value >= 256;
			} else {
				preload_sprite[offset + i] = GB(value, (i % 4) * 8, 8);
			}
		}
	}
}

/**
 * Disable a static NewGRF when it is influencing another (non-static)
 * NewGRF as this could cause desyncs.
 *
 * We could just tell the NewGRF querying that the file doesn't exist,
 * but that might give unwanted results. Disabling the NewGRF gives the
 * best result as no NewGRF author can complain about that.
 * @param c The NewGRF to disable.
 */
static void DisableStaticNewGRFInfluencingNonStaticNewGRFs(GRFConfig *c)
{
	GRFError *error = DisableGrf(STR_NEWGRF_ERROR_STATIC_GRF_CAUSES_DESYNC, c);
	error->data = strdup(_cur.grfconfig->GetName());
}

/* Action 0x07
 * Action 0x09 */
static void SkipIf(ByteReader *buf)
{
	/* <07/09> <param-num> <param-size> <condition-type> <value> <num-sprites>
	 *
	 * B param-num
	 * B param-size
	 * B condition-type
	 * V value
	 * B num-sprites */
	/* TODO: More params. More condition types. */
	uint32 cond_val = 0;
	uint32 mask = 0;
	bool result;

	uint8 param     = buf->ReadByte();
	uint8 paramsize = buf->ReadByte();
	uint8 condtype  = buf->ReadByte();

	if (condtype < 2) {
		/* Always 1 for bit tests, the given value should be ignored. */
		paramsize = 1;
	}

	switch (paramsize) {
		case 8: cond_val = buf->ReadDWord(); mask = buf->ReadDWord(); break;
		case 4: cond_val = buf->ReadDWord(); mask = 0xFFFFFFFF; break;
		case 2: cond_val = buf->ReadWord();  mask = 0x0000FFFF; break;
		case 1: cond_val = buf->ReadByte();  mask = 0x000000FF; break;
		default: break;
	}

	if (param < 0x80 && _cur.grffile->param_end <= param) {
		grfmsg(7, "SkipIf: Param %d undefined, skipping test", param);
		return;
	}

	uint32 param_val = GetParamVal(param, &cond_val);

	grfmsg(7, "SkipIf: Test condtype %d, param 0x%08X, condval 0x%08X", condtype, param_val, cond_val);

	/*
	 * Parameter (variable in specs) 0x88 can only have GRF ID checking
	 * conditions, except conditions 0x0B, 0x0C (cargo availability) and
	 * 0x0D, 0x0E (Rail type availability) as those ignore the parameter.
	 * So, when the condition type is one of those, the specific variable
	 * 0x88 code is skipped, so the "general" code for the cargo
	 * availability conditions kicks in.
	 */
	if (param == 0x88 && (condtype < 0x0B || condtype > 0x0E)) {
		/* GRF ID checks */

		GRFConfig *c = GetGRFConfig(cond_val, mask);

		if (c != NULL && HasBit(c->flags, GCF_STATIC) && !HasBit(_cur.grfconfig->flags, GCF_STATIC) && _networking) {
			DisableStaticNewGRFInfluencingNonStaticNewGRFs(c);
			c = NULL;
		}

		if (condtype != 10 && c == NULL) {
			grfmsg(7, "SkipIf: GRFID 0x%08X unknown, skipping test", BSWAP32(cond_val));
			return;
		}

		switch (condtype) {
			/* Tests 0x06 to 0x0A are only for param 0x88, GRFID checks */
			case 0x06: // Is GRFID active?
				result = c->status == GCS_ACTIVATED;
				break;

			case 0x07: // Is GRFID non-active?
				result = c->status != GCS_ACTIVATED;
				break;

			case 0x08: // GRFID is not but will be active?
				result = c->status == GCS_INITIALISED;
				break;

			case 0x09: // GRFID is or will be active?
				result = c->status == GCS_ACTIVATED || c->status == GCS_INITIALISED;
				break;

			case 0x0A: // GRFID is not nor will be active
				/* This is the only condtype that doesn't get ignored if the GRFID is not found */
				result = c == NULL || c->flags == GCS_DISABLED || c->status == GCS_NOT_FOUND;
				break;

			default: grfmsg(1, "SkipIf: Unsupported GRF condition type %02X. Ignoring", condtype); return;
		}
	} else {
		/* Parameter or variable tests */
		switch (condtype) {
			case 0x00: result = !!(param_val & (1 << cond_val));
				break;
			case 0x01: result = !(param_val & (1 << cond_val));
				break;
			case 0x02: result = (param_val & mask) == cond_val;
				break;
			case 0x03: result = (param_val & mask) != cond_val;
				break;
			case 0x04: result = (param_val & mask) < cond_val;
				break;
			case 0x05: result = (param_val & mask) > cond_val;
				break;
			case 0x0B: result = GetCargoIDByLabel(BSWAP32(cond_val)) == CT_INVALID;
				break;
			case 0x0C: result = GetCargoIDByLabel(BSWAP32(cond_val)) != CT_INVALID;
				break;
			case 0x0D: result = GetRailTypeByLabel(BSWAP32(cond_val)) == INVALID_RAILTYPE;
				break;
			case 0x0E: result = GetRailTypeByLabel(BSWAP32(cond_val)) != INVALID_RAILTYPE;
				break;

			default: grfmsg(1, "SkipIf: Unsupported condition type %02X. Ignoring", condtype); return;
		}
	}

	if (!result) {
		grfmsg(2, "SkipIf: Not skipping sprites, test was false");
		return;
	}

	uint8 numsprites = buf->ReadByte();

	/* numsprites can be a GOTO label if it has been defined in the GRF
	 * file. The jump will always be the first matching label that follows
	 * the current nfo_line. If no matching label is found, the first matching
	 * label in the file is used. */
	GRFLabel *choice = NULL;
	for (GRFLabel *label = _cur.grffile->label; label != NULL; label = label->next) {
		if (label->label != numsprites) continue;

		/* Remember a goto before the current line */
		if (choice == NULL) choice = label;
		/* If we find a label here, this is definitely good */
		if (label->nfo_line > _cur.nfo_line) {
			choice = label;
			break;
		}
	}

	if (choice != NULL) {
		grfmsg(2, "SkipIf: Jumping to label 0x%0X at line %d, test was true", choice->label, choice->nfo_line);
		FioSeekTo(choice->pos, SEEK_SET);
		_cur.nfo_line = choice->nfo_line;
		return;
	}

	grfmsg(2, "SkipIf: Skipping %d sprites, test was true", numsprites);
	_cur.skip_sprites = numsprites;
	if (_cur.skip_sprites == 0) {
		/* Zero means there are no sprites to skip, so
		 * we use -1 to indicate that all further
		 * sprites should be skipped. */
		_cur.skip_sprites = -1;

		/* If an action 8 hasn't been encountered yet, disable the grf. */
		if (_cur.grfconfig->status != (_cur.stage < GLS_RESERVE ? GCS_INITIALISED : GCS_ACTIVATED)) {
			DisableGrf();
		}
	}
}


/* Action 0x08 (GLS_FILESCAN) */
static void ScanInfo(ByteReader *buf)
{
	uint8 grf_version = buf->ReadByte();
	uint32 grfid      = buf->ReadDWord();
	const char *name  = buf->ReadString();

	_cur.grfconfig->ident.grfid = grfid;

	if (grf_version < 2 || grf_version > 8) {
		SetBit(_cur.grfconfig->flags, GCF_INVALID);
		DEBUG(grf, 0, "%s: NewGRF \"%s\" (GRFID %08X) uses GRF version %d, which is incompatible with this version of OpenTTD.", _cur.grfconfig->filename, name, BSWAP32(grfid), grf_version);
	}

	/* GRF IDs starting with 0xFF are reserved for internal TTDPatch use */
	if (GB(grfid, 24, 8) == 0xFF) SetBit(_cur.grfconfig->flags, GCF_SYSTEM);

	AddGRFTextToList(&_cur.grfconfig->name->text, 0x7F, grfid, false, name);

	if (buf->HasData()) {
		const char *info = buf->ReadString();
		AddGRFTextToList(&_cur.grfconfig->info->text, 0x7F, grfid, true, info);
	}

	/* GLS_INFOSCAN only looks for the action 8, so we can skip the rest of the file */
	_cur.skip_sprites = -1;
}

/* Action 0x08 */
static void GRFInfo(ByteReader *buf)
{
	/* <08> <version> <grf-id> <name> <info>
	 *
	 * B version       newgrf version, currently 06
	 * 4*B grf-id      globally unique ID of this .grf file
	 * S name          name of this .grf set
	 * S info          string describing the set, and e.g. author and copyright */

	uint8 version    = buf->ReadByte();
	uint32 grfid     = buf->ReadDWord();
	const char *name = buf->ReadString();

	if (_cur.stage < GLS_RESERVE && _cur.grfconfig->status != GCS_UNKNOWN) {
		DisableGrf(STR_NEWGRF_ERROR_MULTIPLE_ACTION_8);
		return;
	}

	if (_cur.grffile->grfid != grfid) {
		DEBUG(grf, 0, "GRFInfo: GRFID %08X in FILESCAN stage does not match GRFID %08X in INIT/RESERVE/ACTIVATION stage", BSWAP32(_cur.grffile->grfid), BSWAP32(grfid));
		_cur.grffile->grfid = grfid;
	}

	_cur.grffile->grf_version = version;
	_cur.grfconfig->status = _cur.stage < GLS_RESERVE ? GCS_INITIALISED : GCS_ACTIVATED;

	/* Do swap the GRFID for displaying purposes since people expect that */
	DEBUG(grf, 1, "GRFInfo: Loaded GRFv%d set %08X - %s (palette: %s, version: %i)", version, BSWAP32(grfid), name, (_cur.grfconfig->palette & GRFP_USE_MASK) ? "Windows" : "DOS", _cur.grfconfig->version);
}

/* Action 0x0A */
static void SpriteReplace(ByteReader *buf)
{
	/* <0A> <num-sets> <set1> [<set2> ...]
	 * <set>: <num-sprites> <first-sprite>
	 *
	 * B num-sets      How many sets of sprites to replace.
	 * Each set:
	 * B num-sprites   How many sprites are in this set
	 * W first-sprite  First sprite number to replace */

	uint8 num_sets = buf->ReadByte();

	for (uint i = 0; i < num_sets; i++) {
		uint8 num_sprites = buf->ReadByte();
		uint16 first_sprite = buf->ReadWord();

		grfmsg(2, "SpriteReplace: [Set %d] Changing %d sprites, beginning with %d",
			i, num_sprites, first_sprite
		);

		for (uint j = 0; j < num_sprites; j++) {
			int load_index = first_sprite + j;
			_cur.nfo_line++;
			LoadNextSprite(load_index, _cur.file_index, _cur.nfo_line); // XXX

			/* Shore sprites now located at different addresses.
			 * So detect when the old ones get replaced. */
			if (IsInsideMM(load_index, SPR_ORIGINALSHORE_START, SPR_ORIGINALSHORE_END + 1)) {
				if (_loaded_newgrf_features.shore != SHORE_REPLACE_ACTION_5) _loaded_newgrf_features.shore = SHORE_REPLACE_ACTION_A;
			}
		}
	}
}

/* Action 0x0A (SKIP) */
static void SkipActA(ByteReader *buf)
{
	uint8 num_sets = buf->ReadByte();

	for (uint i = 0; i < num_sets; i++) {
		/* Skip the sprites this replaces */
		_cur.skip_sprites += buf->ReadByte();
		/* But ignore where they go */
		buf->ReadWord();
	}

	grfmsg(3, "SkipActA: Skipping %d sprites", _cur.skip_sprites);
}

/* Action 0x0B */
static void GRFLoadError(ByteReader *buf)
{
	/* <0B> <severity> <language-id> <message-id> [<message...> 00] [<data...>] 00 [<parnum>]
	 *
	 * B severity      00: notice, contine loading grf file
	 *                 01: warning, continue loading grf file
	 *                 02: error, but continue loading grf file, and attempt
	 *                     loading grf again when loading or starting next game
	 *                 03: error, abort loading and prevent loading again in
	 *                     the future (only when restarting the patch)
	 * B language-id   see action 4, use 1F for built-in error messages
	 * B message-id    message to show, see below
	 * S message       for custom messages (message-id FF), text of the message
	 *                 not present for built-in messages.
	 * V data          additional data for built-in (or custom) messages
	 * B parnum        parameter numbers to be shown in the message (maximum of 2) */

	static const StringID msgstr[] = {
		STR_NEWGRF_ERROR_VERSION_NUMBER,
		STR_NEWGRF_ERROR_DOS_OR_WINDOWS,
		STR_NEWGRF_ERROR_UNSET_SWITCH,
		STR_NEWGRF_ERROR_INVALID_PARAMETER,
		STR_NEWGRF_ERROR_LOAD_BEFORE,
		STR_NEWGRF_ERROR_LOAD_AFTER,
		STR_NEWGRF_ERROR_OTTD_VERSION_NUMBER,
	};

	static const StringID sevstr[] = {
		STR_NEWGRF_ERROR_MSG_INFO,
		STR_NEWGRF_ERROR_MSG_WARNING,
		STR_NEWGRF_ERROR_MSG_ERROR,
		STR_NEWGRF_ERROR_MSG_FATAL
	};

	/* For now we can only show one message per newgrf file. */
	if (_cur.grfconfig->error != NULL) return;

	byte severity   = buf->ReadByte();
	byte lang       = buf->ReadByte();
	byte message_id = buf->ReadByte();

	/* Skip the error if it isn't valid for the current language. */
	if (!CheckGrfLangID(lang, _cur.grffile->grf_version)) return;

	/* Skip the error until the activation stage unless bit 7 of the severity
	 * is set. */
	if (!HasBit(severity, 7) && _cur.stage == GLS_INIT) {
		grfmsg(7, "GRFLoadError: Skipping non-fatal GRFLoadError in stage %d", _cur.stage);
		return;
	}
	ClrBit(severity, 7);

	if (severity >= lengthof(sevstr)) {
		grfmsg(7, "GRFLoadError: Invalid severity id %d. Setting to 2 (non-fatal error).", severity);
		severity = 2;
	} else if (severity == 3) {
		/* This is a fatal error, so make sure the GRF is deactivated and no
		 * more of it gets loaded. */
		DisableGrf();
	}

	if (message_id >= lengthof(msgstr) && message_id != 0xFF) {
		grfmsg(7, "GRFLoadError: Invalid message id.");
		return;
	}

	if (buf->Remaining() <= 1) {
		grfmsg(7, "GRFLoadError: No message data supplied.");
		return;
	}

	GRFError *error = new GRFError(sevstr[severity]);

	if (message_id == 0xFF) {
		/* This is a custom error message. */
		if (buf->HasData()) {
			const char *message = buf->ReadString();

			error->custom_message = TranslateTTDPatchCodes(_cur.grffile->grfid, lang, true, message);
		} else {
			grfmsg(7, "GRFLoadError: No custom message supplied.");
			error->custom_message = strdup("");
		}
	} else {
		error->message = msgstr[message_id];
	}

	if (buf->HasData()) {
		const char *data = buf->ReadString();

		error->data = TranslateTTDPatchCodes(_cur.grffile->grfid, lang, true, data);
	} else {
		grfmsg(7, "GRFLoadError: No message data supplied.");
		error->data = strdup("");
	}

	/* Only two parameter numbers can be used in the string. */
	uint i = 0;
	for (; i < 2 && buf->HasData(); i++) {
		uint param_number = buf->ReadByte();
		error->param_value[i] = _cur.grffile->GetParam(param_number);
	}
	error->num_params = i;

	_cur.grfconfig->error = error;
}

/* Action 0x0C */
static void GRFComment(ByteReader *buf)
{
	/* <0C> [<ignored...>]
	 *
	 * V ignored       Anything following the 0C is ignored */

	if (!buf->HasData()) return;

	const char *text = buf->ReadString();
	grfmsg(2, "GRFComment: %s", text);
}

/* Action 0x0D (GLS_SAFETYSCAN) */
static void SafeParamSet(ByteReader *buf)
{
	uint8 target = buf->ReadByte();

	/* Only writing GRF parameters is considered safe */
	if (target < 0x80) return;

	/* GRM could be unsafe, but as here it can only happen after other GRFs
	 * are loaded, it should be okay. If the GRF tried to use the slots it
	 * reserved, it would be marked unsafe anyway. GRM for (e.g. bridge)
	 * sprites  is considered safe. */

	SetBit(_cur.grfconfig->flags, GCF_UNSAFE);

	/* Skip remainder of GRF */
	_cur.skip_sprites = -1;
}


static uint32 GetPatchVariable(uint8 param)
{
	switch (param) {
		/* start year - 1920 */
		case 0x0B: return max(_settings_game.game_creation.starting_year, ORIGINAL_BASE_YEAR) - ORIGINAL_BASE_YEAR;

		/* freight trains weight factor */
		case 0x0E: return _settings_game.vehicle.freight_trains;

		/* empty wagon speed increase */
		case 0x0F: return 0;

		/* plane speed factor; our patch option is reversed from TTDPatch's,
		 * the following is good for 1x, 2x and 4x (most common?) and...
		 * well not really for 3x. */
		case 0x10:
			switch (_settings_game.vehicle.plane_speed) {
				default:
				case 4: return 1;
				case 3: return 2;
				case 2: return 2;
				case 1: return 4;
			}


		/* 2CC colourmap base sprite */
		case 0x11: return SPR_2CCMAP_BASE;

		/* map size: format = -MABXYSS
		 * M  : the type of map
		 *       bit 0 : set   : squared map. Bit 1 is now not relevant
		 *               clear : rectangle map. Bit 1 will indicate the bigger edge of the map
		 *       bit 1 : set   : Y is the bigger edge. Bit 0 is clear
		 *               clear : X is the bigger edge.
		 * A  : minimum edge(log2) of the map
		 * B  : maximum edge(log2) of the map
		 * XY : edges(log2) of each side of the map.
		 * SS : combination of both X and Y, thus giving the size(log2) of the map
		 */
		case 0x13: {
			byte map_bits = 0;
			byte log_X = MapLogX() - 6; // substraction is required to make the minimal size (64) zero based
			byte log_Y = MapLogY() - 6;
			byte max_edge = max(log_X, log_Y);

			if (log_X == log_Y) { // we have a squared map, since both edges are identical
				SetBit(map_bits, 0);
			} else {
				if (max_edge == log_Y) SetBit(map_bits, 1); // edge Y been the biggest, mark it
			}

			return (map_bits << 24) | (min(log_X, log_Y) << 20) | (max_edge << 16) |
				(log_X << 12) | (log_Y << 8) | (log_X + log_Y);
		}

		/* The maximum height of the map. */
		case 0x14:
			return MAX_TILE_HEIGHT;

		default:
			grfmsg(2, "ParamSet: Unknown Patch variable 0x%02X.", param);
			return 0;
	}
}


static uint32 PerformGRM(uint32 *grm, uint16 num_ids, uint16 count, uint8 op, uint8 target, const char *type)
{
	uint start = 0;
	uint size  = 0;

	if (op == 6) {
		/* Return GRFID of set that reserved ID */
		return grm[_cur.grffile->GetParam(target)];
	}

	/* With an operation of 2 or 3, we want to reserve a specific block of IDs */
	if (op == 2 || op == 3) start = _cur.grffile->GetParam(target);

	for (uint i = start; i < num_ids; i++) {
		if (grm[i] == 0) {
			size++;
		} else {
			if (op == 2 || op == 3) break;
			start = i + 1;
			size = 0;
		}

		if (size == count) break;
	}

	if (size == count) {
		/* Got the slot... */
		if (op == 0 || op == 3) {
			grfmsg(2, "ParamSet: GRM: Reserving %d %s at %d", count, type, start);
			for (uint i = 0; i < count; i++) grm[start + i] = _cur.grffile->grfid;
		}
		return start;
	}

	/* Unable to allocate */
	if (op != 4 && op != 5) {
		/* Deactivate GRF */
		grfmsg(0, "ParamSet: GRM: Unable to allocate %d %s, deactivating", count, type);
		DisableGrf(STR_NEWGRF_ERROR_GRM_FAILED);
		return UINT_MAX;
	}

	grfmsg(1, "ParamSet: GRM: Unable to allocate %d %s", count, type);
	return UINT_MAX;
}


/** Action 0x0D: Set parameter */
static void ParamSet(ByteReader *buf)
{
	/* <0D> <target> <operation> <source1> <source2> [<data>]
	 *
	 * B target        parameter number where result is stored
	 * B operation     operation to perform, see below
	 * B source1       first source operand
	 * B source2       second source operand
	 * D data          data to use in the calculation, not necessary
	 *                 if both source1 and source2 refer to actual parameters
	 *
	 * Operations
	 * 00      Set parameter equal to source1
	 * 01      Addition, source1 + source2
	 * 02      Subtraction, source1 - source2
	 * 03      Unsigned multiplication, source1 * source2 (both unsigned)
	 * 04      Signed multiplication, source1 * source2 (both signed)
	 * 05      Unsigned bit shift, source1 by source2 (source2 taken to be a
	 *         signed quantity; left shift if positive and right shift if
	 *         negative, source1 is unsigned)
	 * 06      Signed bit shift, source1 by source2
	 *         (source2 like in 05, and source1 as well)
	 */

	uint8 target = buf->ReadByte();
	uint8 oper   = buf->ReadByte();
	uint32 src1  = buf->ReadByte();
	uint32 src2  = buf->ReadByte();

	uint32 data = 0;
	if (buf->Remaining() >= 4) data = buf->ReadDWord();

	/* You can add 80 to the operation to make it apply only if the target
	 * is not defined yet.  In this respect, a parameter is taken to be
	 * defined if any of the following applies:
	 * - it has been set to any value in the newgrf(w).cfg parameter list
	 * - it OR A PARAMETER WITH HIGHER NUMBER has been set to any value by
	 *   an earlier action D */
	if (HasBit(oper, 7)) {
		if (target < 0x80 && target < _cur.grffile->param_end) {
			grfmsg(7, "ParamSet: Param %u already defined, skipping", target);
			return;
		}

		oper = GB(oper, 0, 7);
	}

	if (src2 == 0xFE) {
		if (GB(data, 0, 8) == 0xFF) {
			if (data == 0x0000FFFF) {
				/* Patch variables */
				src1 = GetPatchVariable(src1);
			} else {
				/* GRF Resource Management */
				uint8  op      = src1;
				uint8  feature = GB(data, 8, 8);
				uint16 count   = GB(data, 16, 16);

				if (_cur.stage == GLS_RESERVE) {
					if (feature == 0x08) {
						/* General sprites */
						if (op == 0) {
							/* Check if the allocated sprites will fit below the original sprite limit */
							if (_cur.spriteid + count >= 16384) {
								grfmsg(0, "ParamSet: GRM: Unable to allocate %d sprites; try changing NewGRF order", count);
								DisableGrf(STR_NEWGRF_ERROR_GRM_FAILED);
								return;
							}

							/* Reserve space at the current sprite ID */
							grfmsg(4, "ParamSet: GRM: Allocated %d sprites at %d", count, _cur.spriteid);
							_grm_sprites[GRFLocation(_cur.grffile->grfid, _cur.nfo_line)] = _cur.spriteid;
							_cur.spriteid += count;
						}
					}
					/* Ignore GRM result during reservation */
					src1 = 0;
				} else if (_cur.stage == GLS_ACTIVATION) {
					switch (feature) {
						case 0x00: // Trains
						case 0x01: // Road Vehicles
						case 0x02: // Ships
						case 0x03: // Aircraft
							if (!_settings_game.vehicle.dynamic_engines) {
								src1 = PerformGRM(&_grm_engines[_engine_offsets[feature]], _engine_counts[feature], count, op, target, "vehicles");
								if (_cur.skip_sprites == -1) return;
							} else {
								/* GRM does not apply for dynamic engine allocation. */
								switch (op) {
									case 2:
									case 3:
										src1 = _cur.grffile->GetParam(target);
										break;

									default:
										src1 = 0;
										break;
								}
							}
							break;

						case 0x08: // General sprites
							switch (op) {
								case 0:
									/* Return space reserved during reservation stage */
									src1 = _grm_sprites[GRFLocation(_cur.grffile->grfid, _cur.nfo_line)];
									grfmsg(4, "ParamSet: GRM: Using pre-allocated sprites at %d", src1);
									break;

								case 1:
									src1 = _cur.spriteid;
									break;

								default:
									grfmsg(1, "ParamSet: GRM: Unsupported operation %d for general sprites", op);
									return;
							}
							break;

						case 0x0B: // Cargo
							/* There are two ranges: one for cargo IDs and one for cargo bitmasks */
							src1 = PerformGRM(_grm_cargos, NUM_CARGO * 2, count, op, target, "cargos");
							if (_cur.skip_sprites == -1) return;
							break;

						default: grfmsg(1, "ParamSet: GRM: Unsupported feature 0x%X", feature); return;
					}
				} else {
					/* Ignore GRM during initialization */
					src1 = 0;
				}
			}
		} else {
			/* Read another GRF File's parameter */
			const GRFFile *file = GetFileByGRFID(data);
			GRFConfig *c = GetGRFConfig(data);
			if (c != NULL && HasBit(c->flags, GCF_STATIC) && !HasBit(_cur.grfconfig->flags, GCF_STATIC) && _networking) {
				/* Disable the read GRF if it is a static NewGRF. */
				DisableStaticNewGRFInfluencingNonStaticNewGRFs(c);
				src1 = 0;
			} else if (file == NULL || (c != NULL && c->status == GCS_DISABLED)) {
				src1 = 0;
			} else if (src1 == 0xFE) {
				src1 = c->version;
			} else {
				src1 = file->GetParam(src1);
			}
		}
	} else {
		/* The source1 and source2 operands refer to the grf parameter number
		 * like in action 6 and 7.  In addition, they can refer to the special
		 * variables available in action 7, or they can be FF to use the value
		 * of <data>.  If referring to parameters that are undefined, a value
		 * of 0 is used instead.  */
		src1 = (src1 == 0xFF) ? data : GetParamVal(src1, NULL);
		src2 = (src2 == 0xFF) ? data : GetParamVal(src2, NULL);
	}

	/* TODO: You can access the parameters of another GRF file by using
	 * source2=FE, source1=the other GRF's parameter number and data=GRF
	 * ID.  This is only valid with operation 00 (set).  If the GRF ID
	 * cannot be found, a value of 0 is used for the parameter value
	 * instead. */

	uint32 res;
	switch (oper) {
		case 0x00:
			res = src1;
			break;

		case 0x01:
			res = src1 + src2;
			break;

		case 0x02:
			res = src1 - src2;
			break;

		case 0x03:
			res = src1 * src2;
			break;

		case 0x04:
			res = (int32)src1 * (int32)src2;
			break;

		case 0x05:
			if ((int32)src2 < 0) {
				res = src1 >> -(int32)src2;
			} else {
				res = src1 << src2;
			}
			break;

		case 0x06:
			if ((int32)src2 < 0) {
				res = (int32)src1 >> -(int32)src2;
			} else {
				res = (int32)src1 << src2;
			}
			break;

		case 0x07: // Bitwise AND
			res = src1 & src2;
			break;

		case 0x08: // Bitwise OR
			res = src1 | src2;
			break;

		case 0x09: // Unsigned division
			if (src2 == 0) {
				res = src1;
			} else {
				res = src1 / src2;
			}
			break;

		case 0x0A: // Signed divison
			if (src2 == 0) {
				res = src1;
			} else {
				res = (int32)src1 / (int32)src2;
			}
			break;

		case 0x0B: // Unsigned modulo
			if (src2 == 0) {
				res = src1;
			} else {
				res = src1 % src2;
			}
			break;

		case 0x0C: // Signed modulo
			if (src2 == 0) {
				res = src1;
			} else {
				res = (int32)src1 % (int32)src2;
			}
			break;

		default: grfmsg(0, "ParamSet: Unknown operation %d, skipping", oper); return;
	}

	switch (target) {
		case 0x8E: // Y-Offset for train sprites
			_cur.grffile->traininfo_vehicle_pitch = res;
			break;

		case 0x8F: { // Rail track type cost factors
			extern RailtypeInfo _railtypes[RAILTYPE_END];
			_railtypes[RAILTYPE_RAIL].cost_multiplier = GB(res, 0, 8);
			if (_settings_game.vehicle.disable_elrails) {
				_railtypes[RAILTYPE_ELECTRIC].cost_multiplier = GB(res, 0, 8);
				_railtypes[RAILTYPE_MONO].cost_multiplier = GB(res, 8, 8);
			} else {
				_railtypes[RAILTYPE_ELECTRIC].cost_multiplier = GB(res, 8, 8);
				_railtypes[RAILTYPE_MONO].cost_multiplier = GB(res, 16, 8);
			}
			_railtypes[RAILTYPE_MAGLEV].cost_multiplier = GB(res, 16, 8);
			break;
		}

		/* @todo implement */
		case 0x93: // Tile refresh offset to left
		case 0x94: // Tile refresh offset to right
		case 0x95: // Tile refresh offset upwards
		case 0x96: // Tile refresh offset downwards
		case 0x97: // Snow line height
		case 0x99: // Global ID offset
			grfmsg(7, "ParamSet: Skipping unimplemented target 0x%02X", target);
			break;

		case 0x9E: // Miscellaneous GRF features
			_misc_grf_features = res;

			/* Set train list engine width */
			_cur.grffile->traininfo_vehicle_width = HasGrfMiscBit(GMB_TRAIN_WIDTH_32_PIXELS) ? VEHICLEINFO_FULL_VEHICLE_WIDTH : TRAININFO_DEFAULT_VEHICLE_WIDTH;

			/* Remove the local flags from the global flags */
			ClrBit(_misc_grf_features, GMB_TRAIN_WIDTH_32_PIXELS);
			break;

		case 0x9F: // locale-dependent settings
			grfmsg(7, "ParamSet: Skipping unimplemented target 0x%02X", target);
			break;

		default:
			if (target < 0x80) {
				_cur.grffile->param[target] = res;
				/* param is zeroed by default */
				if (target + 1U > _cur.grffile->param_end) _cur.grffile->param_end = target + 1;
			} else {
				grfmsg(7, "ParamSet: Skipping unknown target 0x%02X", target);
			}
			break;
	}
}

/* Action 0x0E (GLS_SAFETYSCAN) */
static void SafeGRFInhibit(ByteReader *buf)
{
	/* <0E> <num> <grfids...>
	 *
	 * B num           Number of GRFIDs that follow
	 * D grfids        GRFIDs of the files to deactivate */

	uint8 num = buf->ReadByte();

	for (uint i = 0; i < num; i++) {
		uint32 grfid = buf->ReadDWord();

		/* GRF is unsafe it if tries to deactivate other GRFs */
		if (grfid != _cur.grfconfig->ident.grfid) {
			SetBit(_cur.grfconfig->flags, GCF_UNSAFE);

			/* Skip remainder of GRF */
			_cur.skip_sprites = -1;

			return;
		}
	}
}

/* Action 0x0E */
static void GRFInhibit(ByteReader *buf)
{
	/* <0E> <num> <grfids...>
	 *
	 * B num           Number of GRFIDs that follow
	 * D grfids        GRFIDs of the files to deactivate */

	uint8 num = buf->ReadByte();

	for (uint i = 0; i < num; i++) {
		uint32 grfid = buf->ReadDWord();
		GRFConfig *file = GetGRFConfig(grfid);

		/* Unset activation flag */
		if (file != NULL && file != _cur.grfconfig) {
			grfmsg(2, "GRFInhibit: Deactivating file '%s'", file->filename);
			GRFError *error = DisableGrf(STR_NEWGRF_ERROR_FORCEFULLY_DISABLED, file);
			error->data = strdup(_cur.grfconfig->GetName());
		}
	}
}

/** Action 0x0F - Define Town names */
static void FeatureTownName(ByteReader *buf)
{
	/* <0F> <id> <style-name> <num-parts> <parts>
	 *
	 * B id          ID of this definition in bottom 7 bits (final definition if bit 7 set)
	 * V style-name  Name of the style (only for final definition)
	 * B num-parts   Number of parts in this definition
	 * V parts       The parts */

	uint32 grfid = _cur.grffile->grfid;

	GRFTownName *townname = AddGRFTownName(grfid);

	byte id = buf->ReadByte();
	grfmsg(6, "FeatureTownName: definition 0x%02X", id & 0x7F);

	if (HasBit(id, 7)) {
		/* Final definition */
		ClrBit(id, 7);
		bool new_scheme = _cur.grffile->grf_version >= 7;

		byte lang = buf->ReadByte();

		byte nb_gen = townname->nb_gen;
		do {
			ClrBit(lang, 7);

			const char *name = buf->ReadString();

			char *lang_name = TranslateTTDPatchCodes(grfid, lang, false, name);
			grfmsg(6, "FeatureTownName: lang 0x%X -> '%s'", lang, lang_name);
			free(lang_name);

			townname->name[nb_gen] = AddGRFString(grfid, id, lang, new_scheme, false, name, STR_UNDEFINED);

			lang = buf->ReadByte();
		} while (lang != 0);
		townname->id[nb_gen] = id;
		townname->nb_gen++;
	}

	byte nb = buf->ReadByte();
	grfmsg(6, "FeatureTownName: %u parts", nb);

	townname->nbparts[id] = nb;
	townname->partlist[id] = CallocT<NamePartList>(nb);

	for (int i = 0; i < nb; i++) {
		byte nbtext =  buf->ReadByte();
		townname->partlist[id][i].bitstart  = buf->ReadByte();
		townname->partlist[id][i].bitcount  = buf->ReadByte();
		townname->partlist[id][i].maxprob   = 0;
		townname->partlist[id][i].partcount = nbtext;
		townname->partlist[id][i].parts     = CallocT<NamePart>(nbtext);
		grfmsg(6, "FeatureTownName: part %d contains %d texts and will use GB(seed, %d, %d)", i, nbtext, townname->partlist[id][i].bitstart, townname->partlist[id][i].bitcount);

		for (int j = 0; j < nbtext; j++) {
			byte prob = buf->ReadByte();

			if (HasBit(prob, 7)) {
				byte ref_id = buf->ReadByte();

				if (townname->nbparts[ref_id] == 0) {
					grfmsg(0, "FeatureTownName: definition 0x%02X doesn't exist, deactivating", ref_id);
					DelGRFTownName(grfid);
					DisableGrf(STR_NEWGRF_ERROR_INVALID_ID);
					return;
				}

				grfmsg(6, "FeatureTownName: part %d, text %d, uses intermediate definition 0x%02X (with probability %d)", i, j, ref_id, prob & 0x7F);
				townname->partlist[id][i].parts[j].data.id = ref_id;
			} else {
				const char *text = buf->ReadString();
				townname->partlist[id][i].parts[j].data.text = TranslateTTDPatchCodes(grfid, 0, false, text);
				grfmsg(6, "FeatureTownName: part %d, text %d, '%s' (with probability %d)", i, j, townname->partlist[id][i].parts[j].data.text, prob);
			}
			townname->partlist[id][i].parts[j].prob = prob;
			townname->partlist[id][i].maxprob += GB(prob, 0, 7);
		}
		grfmsg(6, "FeatureTownName: part %d, total probability %d", i, townname->partlist[id][i].maxprob);
	}
}

/** Action 0x10 - Define goto label */
static void DefineGotoLabel(ByteReader *buf)
{
	/* <10> <label> [<comment>]
	 *
	 * B label      The label to define
	 * V comment    Optional comment - ignored */

	byte nfo_label = buf->ReadByte();

	GRFLabel *label = MallocT<GRFLabel>(1);
	label->label    = nfo_label;
	label->nfo_line = _cur.nfo_line;
	label->pos      = FioGetPos();
	label->next     = NULL;

	/* Set up a linked list of goto targets which we will search in an Action 0x7/0x9 */
	if (_cur.grffile->label == NULL) {
		_cur.grffile->label = label;
	} else {
		/* Attach the label to the end of the list */
		GRFLabel *l;
		for (l = _cur.grffile->label; l->next != NULL; l = l->next) {}
		l->next = label;
	}

	grfmsg(2, "DefineGotoLabel: GOTO target with label 0x%02X", label->label);
}

/* Action 0x11 */
static void GRFSound(ByteReader *buf)
{
	/* <11> <num>
	 *
	 * W num      Number of sound files that follow */

	uint16 num = buf->ReadWord();

	_cur.data_blocks = num;
	_cur.data_type   = GDT_SOUND;

	if (_cur.grffile->sound_offset == 0) {
		_cur.grffile->sound_offset = GetNumSounds();
		_cur.grffile->num_sounds = num;
	}
}

/* Action 0x11 (SKIP) */
static void SkipAct11(ByteReader *buf)
{
	/* <11> <num>
	 *
	 * W num      Number of sound files that follow */

	_cur.skip_sprites = buf->ReadWord();

	grfmsg(3, "SkipAct11: Skipping %d sprites", _cur.skip_sprites);
}

static void ImportGRFSound(ByteReader *buf)
{
	const GRFFile *file;
	SoundEntry *sound = AllocateSound();
	uint32 grfid = buf->ReadDWord();
	SoundID sound_id = buf->ReadWord();

	file = GetFileByGRFID(grfid);
	if (file == NULL || file->sound_offset == 0) {
		grfmsg(1, "ImportGRFSound: Source file not available");
		return;
	}

	if (sound_id >= file->num_sounds) {
		grfmsg(1, "ImportGRFSound: Sound effect %d is invalid", sound_id);
		return;
	}

	grfmsg(2, "ImportGRFSound: Copying sound %d (%d) from file %X", sound_id, file->sound_offset + sound_id, grfid);

	*sound = *GetSound(file->sound_offset + sound_id);

	/* Reset volume and priority, which TTDPatch doesn't copy */
	sound->volume   = 128;
	sound->priority = 0;
}

/* 'Action 0xFE' */
static void GRFImportBlock(ByteReader *buf)
{
	if (_cur.data_blocks == 0) {
		grfmsg(2, "GRFImportBlock: Unexpected import block, skipping");
		return;
	}

	_cur.data_blocks--;

	/* XXX 'Action 0xFE' isn't really specified. It is only mentioned for
	 * importing sounds, so this is probably all wrong... */
	if (buf->ReadByte() != _cur.data_type) {
		grfmsg(1, "GRFImportBlock: Import type mismatch");
	}

	switch (_cur.data_type) {
		case GDT_SOUND: ImportGRFSound(buf); break;
		default: NOT_REACHED();
	}
}

static void LoadGRFSound(ByteReader *buf)
{
	/* Allocate a sound entry. This is done even if the data is not loaded
	 * so that the indices used elsewhere are still correct. */
	SoundEntry *sound = AllocateSound();

	if (buf->ReadDWord() != BSWAP32('RIFF')) {
		grfmsg(1, "LoadGRFSound: Missing RIFF header");
		return;
	}

	uint32 total_size = buf->ReadDWord();
	if (total_size > buf->Remaining()) {
		grfmsg(1, "LoadGRFSound: RIFF was truncated");
		return;
	}

	if (buf->ReadDWord() != BSWAP32('WAVE')) {
		grfmsg(1, "LoadGRFSound: Invalid RIFF type");
		return;
	}

	while (total_size >= 8) {
		uint32 tag  = buf->ReadDWord();
		uint32 size = buf->ReadDWord();
		total_size -= 8;
		if (total_size < size) {
			grfmsg(1, "LoadGRFSound: Invalid RIFF");
			return;
		}
		total_size -= size;

		switch (tag) {
			case ' tmf': // 'fmt '
				/* Audio format, must be 1 (PCM) */
				if (size < 16 || buf->ReadWord() != 1) {
					grfmsg(1, "LoadGRFSound: Invalid audio format");
					return;
				}
				sound->channels = buf->ReadWord();
				sound->rate = buf->ReadDWord();
				buf->ReadDWord();
				buf->ReadWord();
				sound->bits_per_sample = buf->ReadWord();

				/* The rest will be skipped */
				size -= 16;
				break;

			case 'atad': // 'data'
				sound->file_size   = size;
				sound->file_offset = FioGetPos() - buf->Remaining();
				sound->file_slot   = _cur.file_index;

				/* Set default volume and priority */
				sound->volume = 0x80;
				sound->priority = 0;

				grfmsg(2, "LoadGRFSound: channels %u, sample rate %u, bits per sample %u, length %u", sound->channels, sound->rate, sound->bits_per_sample, size);
				return; // the fmt chunk has to appear before data, so we are finished

			default:
				/* Skip unknown chunks */
				break;
		}

		/* Skip rest of chunk */
		for (; size > 0; size--) buf->ReadByte();
	}

	grfmsg(1, "LoadGRFSound: RIFF does not contain any sound data");

	/* Clear everything that was read */
	MemSetT(sound, 0);
}

/** Action 0x12 */
static void LoadFontGlyph(ByteReader *buf)
{
	/* <12> <num_def> <font_size> <num_char> <base_char>
	 *
	 * B num_def      Number of definitions
	 * B font_size    Size of font (0 = normal, 1 = small, 2 = large, 3 = mono)
	 * B num_char     Number of consecutive glyphs
	 * W base_char    First character index */

	uint8 num_def = buf->ReadByte();

	for (uint i = 0; i < num_def; i++) {
		FontSize size    = (FontSize)buf->ReadByte();
		uint8  num_char  = buf->ReadByte();
		uint16 base_char = buf->ReadWord();

		if (size >= FS_END) {
			grfmsg(1, "LoadFontGlyph: Size %u is not supported, ignoring", size);
		}

		grfmsg(7, "LoadFontGlyph: Loading %u glyph(s) at 0x%04X for size %u", num_char, base_char, size);

		for (uint c = 0; c < num_char; c++) {
			if (size < FS_END) SetUnicodeGlyph(size, base_char + c, _cur.spriteid);
			_cur.nfo_line++;
			LoadNextSprite(_cur.spriteid++, _cur.file_index, _cur.nfo_line);
		}
	}
}

/** Action 0x12 (SKIP) */
static void SkipAct12(ByteReader *buf)
{
	/* <12> <num_def> <font_size> <num_char> <base_char>
	 *
	 * B num_def      Number of definitions
	 * B font_size    Size of font (0 = normal, 1 = small, 2 = large)
	 * B num_char     Number of consecutive glyphs
	 * W base_char    First character index */

	uint8 num_def = buf->ReadByte();

	for (uint i = 0; i < num_def; i++) {
		/* Ignore 'size' byte */
		buf->ReadByte();

		/* Sum up number of characters */
		_cur.skip_sprites += buf->ReadByte();

		/* Ignore 'base_char' word */
		buf->ReadWord();
	}

	grfmsg(3, "SkipAct12: Skipping %d sprites", _cur.skip_sprites);
}

/** Action 0x13 */
static void TranslateGRFStrings(ByteReader *buf)
{
	/* <13> <grfid> <num-ent> <offset> <text...>
	 *
	 * 4*B grfid     The GRFID of the file whose texts are to be translated
	 * B   num-ent   Number of strings
	 * W   offset    First text ID
	 * S   text...   Zero-terminated strings */

	uint32 grfid = buf->ReadDWord();
	const GRFConfig *c = GetGRFConfig(grfid);
	if (c == NULL || (c->status != GCS_INITIALISED && c->status != GCS_ACTIVATED)) {
		grfmsg(7, "TranslateGRFStrings: GRFID 0x%08x unknown, skipping action 13", BSWAP32(grfid));
		return;
	}

	if (c->status == GCS_INITIALISED) {
		/* If the file is not active but will be activated later, give an error
		 * and disable this file. */
		GRFError *error = DisableGrf(STR_NEWGRF_ERROR_LOAD_AFTER);

		char tmp[256];
		GetString(tmp, STR_NEWGRF_ERROR_AFTER_TRANSLATED_FILE, lastof(tmp));
		error->data = strdup(tmp);

		return;
	}

	/* Since no language id is supplied for with version 7 and lower NewGRFs, this string has
	 * to be added as a generic string, thus the language id of 0x7F. For this to work
	 * new_scheme has to be true as well, which will also be implicitly the case for version 8
	 * and higher. A language id of 0x7F will be overridden by a non-generic id, so this will
	 * not change anything if a string has been provided specifically for this language. */
	byte language = _cur.grffile->grf_version >= 8 ? buf->ReadByte() : 0x7F;
	byte num_strings = buf->ReadByte();
	uint16 first_id  = buf->ReadWord();

	if (!((first_id >= 0xD000 && first_id + num_strings <= 0xD3FF) || (first_id >= 0xDC00 && first_id + num_strings <= 0xDCFF))) {
		grfmsg(7, "TranslateGRFStrings: Attempting to set out-of-range string IDs in action 13 (first: 0x%4X, number: 0x%2X)", first_id, num_strings);
		return;
	}

	for (uint i = 0; i < num_strings && buf->HasData(); i++) {
		const char *string = buf->ReadString();

		if (StrEmpty(string)) {
			grfmsg(7, "TranslateGRFString: Ignoring empty string.");
			continue;
		}

		AddGRFString(grfid, first_id + i, language, true, true, string, STR_UNDEFINED);
	}
}

/** Callback function for 'INFO'->'NAME' to add a translation to the newgrf name. */
static bool ChangeGRFName(byte langid, const char *str)
{
	AddGRFTextToList(&_cur.grfconfig->name->text, langid, _cur.grfconfig->ident.grfid, false, str);
	return true;
}

/** Callback function for 'INFO'->'DESC' to add a translation to the newgrf description. */
static bool ChangeGRFDescription(byte langid, const char *str)
{
	AddGRFTextToList(&_cur.grfconfig->info->text, langid, _cur.grfconfig->ident.grfid, true, str);
	return true;
}

/** Callback function for 'INFO'->'URL_' to set the newgrf url. */
static bool ChangeGRFURL(byte langid, const char *str)
{
	AddGRFTextToList(&_cur.grfconfig->url->text, langid, _cur.grfconfig->ident.grfid, false, str);
	return true;
}

/** Callback function for 'INFO'->'NPAR' to set the number of valid parameters. */
static bool ChangeGRFNumUsedParams(size_t len, ByteReader *buf)
{
	if (len != 1) {
		grfmsg(2, "StaticGRFInfo: expected only 1 byte for 'INFO'->'NPAR' but got " PRINTF_SIZE ", ignoring this field", len);
		buf->Skip(len);
	} else {
		_cur.grfconfig->num_valid_params = min(buf->ReadByte(), lengthof(_cur.grfconfig->param));
	}
	return true;
}

/** Callback function for 'INFO'->'PALS' to set the number of valid parameters. */
static bool ChangeGRFPalette(size_t len, ByteReader *buf)
{
	if (len != 1) {
		grfmsg(2, "StaticGRFInfo: expected only 1 byte for 'INFO'->'PALS' but got " PRINTF_SIZE ", ignoring this field", len);
		buf->Skip(len);
	} else {
		char data = buf->ReadByte();
		GRFPalette pal = GRFP_GRF_UNSET;
		switch (data) {
			case '*':
			case 'A': pal = GRFP_GRF_ANY;     break;
			case 'W': pal = GRFP_GRF_WINDOWS; break;
			case 'D': pal = GRFP_GRF_DOS;     break;
			default:
				grfmsg(2, "StaticGRFInfo: unexpected value '%02x' for 'INFO'->'PALS', ignoring this field", data);
				break;
		}
		if (pal != GRFP_GRF_UNSET) {
			_cur.grfconfig->palette &= ~GRFP_GRF_MASK;
			_cur.grfconfig->palette |= pal;
		}
	}
	return true;
}

/** Callback function for 'INFO'->'BLTR' to set the blitter info. */
static bool ChangeGRFBlitter(size_t len, ByteReader *buf)
{
	if (len != 1) {
		grfmsg(2, "StaticGRFInfo: expected only 1 byte for 'INFO'->'BLTR' but got " PRINTF_SIZE ", ignoring this field", len);
		buf->Skip(len);
	} else {
		char data = buf->ReadByte();
		GRFPalette pal = GRFP_BLT_UNSET;
		switch (data) {
			case '8': pal = GRFP_BLT_UNSET; break;
			case '3': pal = GRFP_BLT_32BPP;  break;
			default:
				grfmsg(2, "StaticGRFInfo: unexpected value '%02x' for 'INFO'->'BLTR', ignoring this field", data);
				return true;
		}
		_cur.grfconfig->palette &= ~GRFP_BLT_MASK;
		_cur.grfconfig->palette |= pal;
	}
	return true;
}

/** Callback function for 'INFO'->'VRSN' to the version of the NewGRF. */
static bool ChangeGRFVersion(size_t len, ByteReader *buf)
{
	if (len != 4) {
		grfmsg(2, "StaticGRFInfo: expected 4 bytes for 'INFO'->'VRSN' but got " PRINTF_SIZE ", ignoring this field", len);
		buf->Skip(len);
	} else {
		/* Set min_loadable_version as well (default to minimal compatibility) */
		_cur.grfconfig->version = _cur.grfconfig->min_loadable_version = buf->ReadDWord();
	}
	return true;
}

/** Callback function for 'INFO'->'MINV' to the minimum compatible version of the NewGRF. */
static bool ChangeGRFMinVersion(size_t len, ByteReader *buf)
{
	if (len != 4) {
		grfmsg(2, "StaticGRFInfo: expected 4 bytes for 'INFO'->'MINV' but got " PRINTF_SIZE ", ignoring this field", len);
		buf->Skip(len);
	} else {
		_cur.grfconfig->min_loadable_version = buf->ReadDWord();
		if (_cur.grfconfig->version == 0) {
			grfmsg(2, "StaticGRFInfo: 'MINV' defined before 'VRSN' or 'VRSN' set to 0, ignoring this field");
			_cur.grfconfig->min_loadable_version = 0;
		}
		if (_cur.grfconfig->version < _cur.grfconfig->min_loadable_version) {
			grfmsg(2, "StaticGRFInfo: 'MINV' defined as %d, limiting it to 'VRSN'", _cur.grfconfig->min_loadable_version);
			_cur.grfconfig->min_loadable_version = _cur.grfconfig->version;
		}
	}
	return true;
}

static GRFParameterInfo *_cur_parameter; ///< The parameter which info is currently changed by the newgrf.

/** Callback function for 'INFO'->'PARAM'->param_num->'NAME' to set the name of a parameter. */
static bool ChangeGRFParamName(byte langid, const char *str)
{
	AddGRFTextToList(&_cur_parameter->name, langid, _cur.grfconfig->ident.grfid, false, str);
	return true;
}

/** Callback function for 'INFO'->'PARAM'->param_num->'DESC' to set the description of a parameter. */
static bool ChangeGRFParamDescription(byte langid, const char *str)
{
	AddGRFTextToList(&_cur_parameter->desc, langid, _cur.grfconfig->ident.grfid, true, str);
	return true;
}

/** Callback function for 'INFO'->'PARAM'->param_num->'TYPE' to set the typeof a parameter. */
static bool ChangeGRFParamType(size_t len, ByteReader *buf)
{
	if (len != 1) {
		grfmsg(2, "StaticGRFInfo: expected 1 byte for 'INFO'->'PARA'->'TYPE' but got " PRINTF_SIZE ", ignoring this field", len);
		buf->Skip(len);
	} else {
		GRFParameterType type = (GRFParameterType)buf->ReadByte();
		if (type < PTYPE_END) {
			_cur_parameter->type = type;
		} else {
			grfmsg(3, "StaticGRFInfo: unknown parameter type %d, ignoring this field", type);
		}
	}
	return true;
}

/** Callback function for 'INFO'->'PARAM'->param_num->'LIMI' to set the min/max value of a parameter. */
static bool ChangeGRFParamLimits(size_t len, ByteReader *buf)
{
	if (_cur_parameter->type != PTYPE_UINT_ENUM) {
		grfmsg(2, "StaticGRFInfo: 'INFO'->'PARA'->'LIMI' is only valid for parameters with type uint/enum, ignoring this field");
		buf->Skip(len);
	} else if (len != 8) {
		grfmsg(2, "StaticGRFInfo: expected 8 bytes for 'INFO'->'PARA'->'LIMI' but got " PRINTF_SIZE ", ignoring this field", len);
		buf->Skip(len);
	} else {
		_cur_parameter->min_value = buf->ReadDWord();
		_cur_parameter->max_value = buf->ReadDWord();
	}
	return true;
}

/** Callback function for 'INFO'->'PARAM'->param_num->'MASK' to set the parameter and bits to use. */
static bool ChangeGRFParamMask(size_t len, ByteReader *buf)
{
	if (len < 1 || len > 3) {
		grfmsg(2, "StaticGRFInfo: expected 1 to 3 bytes for 'INFO'->'PARA'->'MASK' but got " PRINTF_SIZE ", ignoring this field", len);
		buf->Skip(len);
	} else {
		byte param_nr = buf->ReadByte();
		if (param_nr >= lengthof(_cur.grfconfig->param)) {
			grfmsg(2, "StaticGRFInfo: invalid parameter number in 'INFO'->'PARA'->'MASK', param %d, ignoring this field", param_nr);
			buf->Skip(len - 1);
		} else {
			_cur_parameter->param_nr = param_nr;
			if (len >= 2) _cur_parameter->first_bit = min(buf->ReadByte(), 31);
			if (len >= 3) _cur_parameter->num_bit = min(buf->ReadByte(), 32 - _cur_parameter->first_bit);
		}
	}

	return true;
}

/** Callback function for 'INFO'->'PARAM'->param_num->'DFLT' to set the default value. */
static bool ChangeGRFParamDefault(size_t len, ByteReader *buf)
{
	if (len != 4) {
		grfmsg(2, "StaticGRFInfo: expected 4 bytes for 'INFO'->'PARA'->'DEFA' but got " PRINTF_SIZE ", ignoring this field", len);
		buf->Skip(len);
	} else {
		_cur_parameter->def_value = buf->ReadDWord();
	}
	_cur.grfconfig->has_param_defaults = true;
	return true;
}

typedef bool (*DataHandler)(size_t, ByteReader *);  ///< Type of callback function for binary nodes
typedef bool (*TextHandler)(byte, const char *str); ///< Type of callback function for text nodes
typedef bool (*BranchHandler)(ByteReader *);        ///< Type of callback function for branch nodes

/**
 * Data structure to store the allowed id/type combinations for action 14. The
 * data can be represented as a tree with 3 types of nodes:
 * 1. Branch nodes (identified by 'C' for choice).
 * 2. Binary leaf nodes (identified by 'B').
 * 3. Text leaf nodes (identified by 'T').
 */
struct AllowedSubtags {
	/** Create empty subtags object used to identify the end of a list. */
	AllowedSubtags() :
		id(0),
		type(0)
	{}

	/**
	 * Create a binary leaf node.
	 * @param id The id for this node.
	 * @param handler The callback function to call.
	 */
	AllowedSubtags(uint32 id, DataHandler handler) :
		id(id),
		type('B')
	{
		this->handler.data = handler;
	}

	/**
	 * Create a text leaf node.
	 * @param id The id for this node.
	 * @param handler The callback function to call.
	 */
	AllowedSubtags(uint32 id, TextHandler handler) :
		id(id),
		type('T')
	{
		this->handler.text = handler;
	}

	/**
	 * Create a branch node with a callback handler
	 * @param id The id for this node.
	 * @param handler The callback function to call.
	 */
	AllowedSubtags(uint32 id, BranchHandler handler) :
		id(id),
		type('C')
	{
		this->handler.call_handler = true;
		this->handler.u.branch = handler;
	}

	/**
	 * Create a branch node with a list of sub-nodes.
	 * @param id The id for this node.
	 * @param subtags Array with all valid subtags.
	 */
	AllowedSubtags(uint32 id, AllowedSubtags *subtags) :
		id(id),
		type('C')
	{
		this->handler.call_handler = false;
		this->handler.u.subtags = subtags;
	}

	uint32 id; ///< The identifier for this node
	byte type; ///< The type of the node, must be one of 'C', 'B' or 'T'.
	union {
		DataHandler data; ///< Callback function for a binary node, only valid if type == 'B'.
		TextHandler text; ///< Callback function for a text node, only valid if type == 'T'.
		struct {
			union {
				BranchHandler branch;    ///< Callback function for a branch node, only valid if type == 'C' && call_handler.
				AllowedSubtags *subtags; ///< Pointer to a list of subtags, only valid if type == 'C' && !call_handler.
			} u;
			bool call_handler; ///< True if there is a callback function for this node, false if there is a list of subnodes.
		};
	} handler;
};

static bool SkipUnknownInfo(ByteReader *buf, byte type);
static bool HandleNodes(ByteReader *buf, AllowedSubtags *tags);

/**
 * Callback function for 'INFO'->'PARA'->param_num->'VALU' to set the names
 * of some parameter values (type uint/enum) or the names of some bits
 * (type bitmask). In both cases the format is the same:
 * Each subnode should be a text node with the value/bit number as id.
 */
static bool ChangeGRFParamValueNames(ByteReader *buf)
{
	byte type = buf->ReadByte();
	while (type != 0) {
		uint32 id = buf->ReadDWord();
		if (type != 'T' || id > _cur_parameter->max_value) {
			grfmsg(2, "StaticGRFInfo: all child nodes of 'INFO'->'PARA'->param_num->'VALU' should have type 't' and the value/bit number as id");
			if (!SkipUnknownInfo(buf, type)) return false;
			type = buf->ReadByte();
			continue;
		}

		byte langid = buf->ReadByte();
		const char *name_string = buf->ReadString();

		SmallPair<uint32, GRFText *> *val_name = _cur_parameter->value_names.Find(id);
		if (val_name != _cur_parameter->value_names.End()) {
			AddGRFTextToList(&val_name->second, langid, _cur.grfconfig->ident.grfid, false, name_string);
		} else {
			GRFText *list = NULL;
			AddGRFTextToList(&list, langid, _cur.grfconfig->ident.grfid, false, name_string);
			_cur_parameter->value_names.Insert(id, list);
		}

		type = buf->ReadByte();
	}
	return true;
}

/** Action14 parameter tags */
AllowedSubtags _tags_parameters[] = {
	AllowedSubtags('NAME', ChangeGRFParamName),
	AllowedSubtags('DESC', ChangeGRFParamDescription),
	AllowedSubtags('TYPE', ChangeGRFParamType),
	AllowedSubtags('LIMI', ChangeGRFParamLimits),
	AllowedSubtags('MASK', ChangeGRFParamMask),
	AllowedSubtags('VALU', ChangeGRFParamValueNames),
	AllowedSubtags('DFLT', ChangeGRFParamDefault),
	AllowedSubtags()
};

/**
 * Callback function for 'INFO'->'PARA' to set extra information about the
 * parameters. Each subnode of 'INFO'->'PARA' should be a branch node with
 * the parameter number as id. The first parameter has id 0. The maximum
 * parameter that can be changed is set by 'INFO'->'NPAR' which defaults to 80.
 */
static bool HandleParameterInfo(ByteReader *buf)
{
	byte type = buf->ReadByte();
	while (type != 0) {
		uint32 id = buf->ReadDWord();
		if (type != 'C' || id >= _cur.grfconfig->num_valid_params) {
			grfmsg(2, "StaticGRFInfo: all child nodes of 'INFO'->'PARA' should have type 'C' and their parameter number as id");
			if (!SkipUnknownInfo(buf, type)) return false;
			type = buf->ReadByte();
			continue;
		}

		if (id >= _cur.grfconfig->param_info.Length()) {
			uint num_to_add = id - _cur.grfconfig->param_info.Length() + 1;
			GRFParameterInfo **newdata = _cur.grfconfig->param_info.Append(num_to_add);
			MemSetT<GRFParameterInfo *>(newdata, 0, num_to_add);
		}
		if (_cur.grfconfig->param_info[id] == NULL) {
			_cur.grfconfig->param_info[id] = new GRFParameterInfo(id);
		}
		_cur_parameter = _cur.grfconfig->param_info[id];
		/* Read all parameter-data and process each node. */
		if (!HandleNodes(buf, _tags_parameters)) return false;
		type = buf->ReadByte();
	}
	return true;
}

/** Action14 tags for the INFO node */
AllowedSubtags _tags_info[] = {
	AllowedSubtags('NAME', ChangeGRFName),
	AllowedSubtags('DESC', ChangeGRFDescription),
	AllowedSubtags('URL_', ChangeGRFURL),
	AllowedSubtags('NPAR', ChangeGRFNumUsedParams),
	AllowedSubtags('PALS', ChangeGRFPalette),
	AllowedSubtags('BLTR', ChangeGRFBlitter),
	AllowedSubtags('VRSN', ChangeGRFVersion),
	AllowedSubtags('MINV', ChangeGRFMinVersion),
	AllowedSubtags('PARA', HandleParameterInfo),
	AllowedSubtags()
};

/** Action14 root tags */
AllowedSubtags _tags_root[] = {
	AllowedSubtags('INFO', _tags_info),
	AllowedSubtags()
};


/**
 * Try to skip the current node and all subnodes (if it's a branch node).
 * @param buf Buffer.
 * @param type The node type to skip.
 * @return True if we could skip the node, false if an error occured.
 */
static bool SkipUnknownInfo(ByteReader *buf, byte type)
{
	/* type and id are already read */
	switch (type) {
		case 'C': {
			byte new_type = buf->ReadByte();
			while (new_type != 0) {
				buf->ReadDWord(); // skip the id
				if (!SkipUnknownInfo(buf, new_type)) return false;
				new_type = buf->ReadByte();
			}
			break;
		}

		case 'T':
			buf->ReadByte(); // lang
			buf->ReadString(); // actual text
			break;

		case 'B': {
			uint16 size = buf->ReadWord();
			buf->Skip(size);
			break;
		}

		default:
			return false;
	}

	return true;
}

/**
 * Handle the nodes of an Action14
 * @param type Type of node.
 * @param id ID.
 * @param buf Buffer.
 * @param subtags Allowed subtags.
 * @return Whether all tags could be handled.
 */
static bool HandleNode(byte type, uint32 id, ByteReader *buf, AllowedSubtags subtags[])
{
	uint i = 0;
	AllowedSubtags *tag;
	while ((tag = &subtags[i++])->type != 0) {
		if (tag->id != BSWAP32(id) || tag->type != type) continue;
		switch (type) {
			default: NOT_REACHED();

			case 'T': {
				byte langid = buf->ReadByte();
				return tag->handler.text(langid, buf->ReadString());
			}

			case 'B': {
				size_t len = buf->ReadWord();
				if (buf->Remaining() < len) return false;
				return tag->handler.data(len, buf);
			}

			case 'C': {
				if (tag->handler.call_handler) {
					return tag->handler.u.branch(buf);
				}
				return HandleNodes(buf, tag->handler.u.subtags);
			}
		}
	}
	grfmsg(2, "StaticGRFInfo: unknown type/id combination found, type=%c, id=%x", type, id);
	return SkipUnknownInfo(buf, type);
}

/**
 * Handle the contents of a 'C' choice of an Action14
 * @param buf Buffer.
 * @param subtags List of subtags.
 * @return Whether the nodes could all be handled.
 */
static bool HandleNodes(ByteReader *buf, AllowedSubtags subtags[])
{
	byte type = buf->ReadByte();
	while (type != 0) {
		uint32 id = buf->ReadDWord();
		if (!HandleNode(type, id, buf, subtags)) return false;
		type = buf->ReadByte();
	}
	return true;
}

/**
 * Handle Action 0x14
 * @param buf Buffer.
 */
static void StaticGRFInfo(ByteReader *buf)
{
	/* <14> <type> <id> <text/data...> */
	HandleNodes(buf, _tags_root);
}

/** 'Action 0xFF' */
static void GRFDataBlock(ByteReader *buf)
{
	/* <FF> <name_len> <name> '\0' <data> */

	if (_cur.data_blocks == 0) {
		grfmsg(2, "GRFDataBlock: unexpected data block, skipping");
		return;
	}

	uint8 name_len = buf->ReadByte();
	const char *name = reinterpret_cast<const char *>(buf->Data());
	buf->Skip(name_len);

	/* Test string termination */
	if (buf->ReadByte() != 0) {
		grfmsg(2, "GRFDataBlock: Name not properly terminated");
		return;
	}

	grfmsg(2, "GRFDataBlock: block name '%s'...", name);

	_cur.data_blocks--;

	switch (_cur.data_type) {
		case GDT_SOUND: LoadGRFSound(buf); break;
		default: NOT_REACHED();
	}
}

/**
 * Set the current NewGRF as unsafe for static use
 * @param buf Unused.
 * @note Used during safety scan on unsafe actions.
 */
static void GRFUnsafe(ByteReader *buf)
{
	SetBit(_cur.grfconfig->flags, GCF_UNSAFE);

	/* Skip remainder of GRF */
	_cur.skip_sprites = -1;
}


/** Initialize the TTDPatch flags */
static void InitializeGRFSpecial()
{
	_ttdpatch_flags[0] = ((_settings_game.station.never_expire_airports ? 1 : 0) << 0x0C)  // keepsmallairport
	                   |                                                      (1 << 0x0D)  // newairports
	                   |                                                      (1 << 0x0E)  // largestations
	                   | ((_settings_game.construction.max_bridge_length > 16 ? 1 : 0) << 0x0F)  // longbridges
	                   |                                                      (0 << 0x10)  // loadtime
	                   |                                                      (1 << 0x12)  // presignals
	                   |                                                      (1 << 0x13)  // extpresignals
	                   | ((_settings_game.vehicle.never_expire_vehicles ? 1 : 0) << 0x16)  // enginespersist
	                   |                                                      (1 << 0x1B)  // multihead
	                   |                                                      (1 << 0x1D)  // lowmemory
	                   |                                                      (1 << 0x1E); // generalfixes

	_ttdpatch_flags[1] =   ((_settings_game.economy.station_noise_level ? 1 : 0) << 0x07)  // moreairports - based on units of noise
	                   |                                                      (1 << 0x08)  // mammothtrains
	                   |                                                      (1 << 0x09)  // trainrefit
	                   |                                                      (0 << 0x0B)  // subsidiaries
	                   |         ((_settings_game.order.gradual_loading ? 1 : 0) << 0x0C)  // gradualloading
	                   |                                                      (1 << 0x12)  // unifiedmaglevmode - set bit 0 mode. Not revelant to OTTD
	                   |                                                      (1 << 0x13)  // unifiedmaglevmode - set bit 1 mode
	                   |                                                      (1 << 0x14)  // bridgespeedlimits
	                   |                                                      (1 << 0x16)  // eternalgame
	                   |                                                      (1 << 0x17)  // newtrains
	                   |                                                      (1 << 0x18)  // newrvs
	                   |                                                      (1 << 0x19)  // newships
	                   |                                                      (1 << 0x1A)  // newplanes
	                   |      ((_settings_game.construction.signal_side ? 1 : 0) << 0x1B)  // signalsontrafficside
	                   |       ((_settings_game.vehicle.disable_elrails ? 0 : 1) << 0x1C); // electrifiedrailway

	_ttdpatch_flags[2] =                                                      (1 << 0x01)  // loadallgraphics - obsolote
	                   |                                                      (1 << 0x03)  // semaphores
	                   |                                                      (1 << 0x0A)  // newobjects
	                   |                                                      (0 << 0x0B)  // enhancedgui
	                   |                                                      (0 << 0x0C)  // newagerating
	                   |  ((_settings_game.construction.build_on_slopes ? 1 : 0) << 0x0D)  // buildonslopes
	                   |                                                      (1 << 0x0E)  // fullloadany
	                   |                                                      (1 << 0x0F)  // planespeed
	                   |                                                      (0 << 0x10)  // moreindustriesperclimate - obsolete
	                   |                                                      (0 << 0x11)  // moretoylandfeatures
	                   |                                                      (1 << 0x12)  // newstations
	                   |                                                      (1 << 0x13)  // tracktypecostdiff
	                   |                                                      (1 << 0x14)  // manualconvert
	                   |  ((_settings_game.construction.build_on_slopes ? 1 : 0) << 0x15)  // buildoncoasts
	                   |                                                      (1 << 0x16)  // canals
	                   |                                                      (1 << 0x17)  // newstartyear
	                   |    ((_settings_game.vehicle.freight_trains > 1 ? 1 : 0) << 0x18)  // freighttrains
	                   |                                                      (1 << 0x19)  // newhouses
	                   |                                                      (1 << 0x1A)  // newbridges
	                   |                                                      (1 << 0x1B)  // newtownnames
	                   |                                                      (1 << 0x1C)  // moreanimation
	                   |    ((_settings_game.vehicle.wagon_speed_limits ? 1 : 0) << 0x1D)  // wagonspeedlimits
	                   |                                                      (1 << 0x1E)  // newshistory
	                   |                                                      (0 << 0x1F); // custombridgeheads

	_ttdpatch_flags[3] =                                                      (0 << 0x00)  // newcargodistribution
	                   |                                                      (1 << 0x01)  // windowsnap
	                   | ((_settings_game.economy.allow_town_roads || _generating_world ? 0 : 1) << 0x02)  // townbuildnoroad
	                   |                                                      (1 << 0x03)  // pathbasedsignalling
	                   |                                                      (0 << 0x04)  // aichoosechance
	                   |                                                      (1 << 0x05)  // resolutionwidth
	                   |                                                      (1 << 0x06)  // resolutionheight
	                   |                                                      (1 << 0x07)  // newindustries
	                   |           ((_settings_game.order.improved_load ? 1 : 0) << 0x08)  // fifoloading
	                   |                                                      (0 << 0x09)  // townroadbranchprob
	                   |                                                      (0 << 0x0A)  // tempsnowline
	                   |                                                      (1 << 0x0B)  // newcargo
	                   |                                                      (1 << 0x0C)  // enhancemultiplayer
	                   |                                                      (1 << 0x0D)  // onewayroads
	                   |                                                      (1 << 0x0E)  // irregularstations
	                   |                                                      (1 << 0x0F)  // statistics
	                   |                                                      (1 << 0x10)  // newsounds
	                   |                                                      (1 << 0x11)  // autoreplace
	                   |                                                      (1 << 0x12)  // autoslope
	                   |                                                      (0 << 0x13)  // followvehicle
	                   |                                                      (1 << 0x14)  // trams
	                   |                                                      (0 << 0x15)  // enhancetunnels
	                   |                                                      (1 << 0x16)  // shortrvs
	                   |                                                      (1 << 0x17)  // articulatedrvs
	                   |       ((_settings_game.vehicle.dynamic_engines ? 1 : 0) << 0x18)  // dynamic engines
	                   |                                                      (1 << 0x1E)  // variablerunningcosts
	                   |                                                      (1 << 0x1F); // any switch is on
}

/** Reset and clear all NewGRF stations */
static void ResetCustomStations()
{
	const GRFFile * const *end = _grf_files.End();
	for (GRFFile **file = _grf_files.Begin(); file != end; file++) {
		StationSpec **&stations = (*file)->stations;
		if (stations == NULL) continue;
		for (uint i = 0; i < MAX_STATIONS; i++) {
			if (stations[i] == NULL) continue;
			StationSpec *statspec = stations[i];

			delete[] statspec->renderdata;

			/* Release platforms and layouts */
			if (!statspec->copied_layouts) {
				for (uint l = 0; l < statspec->lengths; l++) {
					for (uint p = 0; p < statspec->platforms[l]; p++) {
						free(statspec->layouts[l][p]);
					}
					free(statspec->layouts[l]);
				}
				free(statspec->layouts);
				free(statspec->platforms);
			}

			/* Release this station */
			free(statspec);
		}

		/* Free and reset the station data */
		free(stations);
		stations = NULL;
	}
}

/** Reset and clear all NewGRF houses */
static void ResetCustomHouses()
{
	const GRFFile * const *end = _grf_files.End();
	for (GRFFile **file = _grf_files.Begin(); file != end; file++) {
		HouseSpec **&housespec = (*file)->housespec;
		if (housespec == NULL) continue;
		for (uint i = 0; i < HOUSE_MAX; i++) {
			free(housespec[i]);
		}

		free(housespec);
		housespec = NULL;
	}
}

/** Reset and clear all NewGRF airports */
static void ResetCustomAirports()
{
	const GRFFile * const *end = _grf_files.End();
	for (GRFFile **file = _grf_files.Begin(); file != end; file++) {
		AirportSpec **aslist = (*file)->airportspec;
		if (aslist != NULL) {
			for (uint i = 0; i < NUM_AIRPORTS; i++) {
				AirportSpec *as = aslist[i];

				if (as != NULL) {
					/* We need to remove the tiles layouts */
					for (int j = 0; j < as->num_table; j++) {
						/* remove the individual layouts */
						free(as->table[j]);
					}
					free(as->table);
					free(as->depot_table);

					free(as);
				}
			}
			free(aslist);
			(*file)->airportspec = NULL;
		}

		AirportTileSpec **&airporttilespec = (*file)->airtspec;
		if (airporttilespec != NULL) {
			for (uint i = 0; i < NUM_AIRPORTTILES; i++) {
				free(airporttilespec[i]);
			}
			free(airporttilespec);
			airporttilespec = NULL;
		}
	}
}

/** Reset and clear all NewGRF industries */
static void ResetCustomIndustries()
{
	const GRFFile * const *end = _grf_files.End();
	for (GRFFile **file = _grf_files.Begin(); file != end; file++) {
		IndustrySpec **&industryspec = (*file)->industryspec;
		IndustryTileSpec **&indtspec = (*file)->indtspec;

		/* We are verifiying both tiles and industries specs loaded from the grf file
		 * First, let's deal with industryspec */
		if (industryspec != NULL) {
			for (uint i = 0; i < NUM_INDUSTRYTYPES; i++) {
				IndustrySpec *ind = industryspec[i];
				if (ind == NULL) continue;

				/* We need to remove the sounds array */
				if (HasBit(ind->cleanup_flag, CLEAN_RANDOMSOUNDS)) {
					free(ind->random_sounds);
				}

				/* We need to remove the tiles layouts */
				CleanIndustryTileTable(ind);

				free(ind);
			}

			free(industryspec);
			industryspec = NULL;
		}

		if (indtspec == NULL) continue;
		for (uint i = 0; i < NUM_INDUSTRYTILES; i++) {
			free(indtspec[i]);
		}

		free(indtspec);
		indtspec = NULL;
	}
}

/** Reset and clear all NewObjects */
static void ResetCustomObjects()
{
	const GRFFile * const *end = _grf_files.End();
	for (GRFFile **file = _grf_files.Begin(); file != end; file++) {
		ObjectSpec **&objectspec = (*file)->objectspec;
		if (objectspec == NULL) continue;
		for (uint i = 0; i < NUM_OBJECTS; i++) {
			free(objectspec[i]);
		}

		free(objectspec);
		objectspec = NULL;
	}
}

/** Reset and clear all NewGRFs */
static void ResetNewGRF()
{
	const GRFFile * const *end = _grf_files.End();
	for (GRFFile **file = _grf_files.Begin(); file != end; file++) {
		GRFFile *f = *file;
		free(f->filename);
		free(f->cargo_list);
		free(f->railtype_list);
		delete [] f->language_map;
		free(f);
	}

	_grf_files.Clear();
	_cur.grffile   = NULL;
}

/** Clear all NewGRF errors */
static void ResetNewGRFErrors()
{
	for (GRFConfig *c = _grfconfig; c != NULL; c = c->next) {
		if (!HasBit(c->flags, GCF_COPY) && c->error != NULL) {
			delete c->error;
			c->error = NULL;
		}
	}
}

/**
 * Reset all NewGRF loaded data
 * TODO
 */
void ResetNewGRFData()
{
	CleanUpStrings();
	CleanUpGRFTownNames();

	/* Copy/reset original engine info data */
	SetupEngines();

	/* Copy/reset original bridge info data */
	ResetBridges();

	/* Reset rail type information */
	ResetRailTypes();

	/* Allocate temporary refit/cargo class data */
	_gted = CallocT<GRFTempEngineData>(Engine::GetPoolSize());

	/* Fill rail type label temporary data for default trains */
	Engine *e;
	FOR_ALL_ENGINES_OF_TYPE(e, VEH_TRAIN) {
		_gted[e->index].railtypelabel = GetRailTypeInfo(e->u.rail.railtype)->label;
	}

	/* Reset GRM reservations */
	memset(&_grm_engines, 0, sizeof(_grm_engines));
	memset(&_grm_cargos, 0, sizeof(_grm_cargos));

	/* Reset generic feature callback lists */
	ResetGenericCallbacks();

	/* Reset price base data */
	ResetPriceBaseMultipliers();

	/* Reset the curencies array */
	ResetCurrencies();

	/* Reset the house array */
	ResetCustomHouses();
	ResetHouses();

	/* Reset the industries structures*/
	ResetCustomIndustries();
	ResetIndustries();

	/* Reset the objects. */
	ObjectClass::Reset();
	ResetCustomObjects();
	ResetObjects();

	/* Reset station classes */
	StationClass::Reset();
	ResetCustomStations();

	/* Reset airport-related structures */
	AirportClass::Reset();
	ResetCustomAirports();
	AirportSpec::ResetAirports();
	AirportTileSpec::ResetAirportTiles();

	/* Reset canal sprite groups and flags */
	memset(_water_feature, 0, sizeof(_water_feature));

	/* Reset the snowline table. */
	ClearSnowLine();

	/* Reset NewGRF files */
	ResetNewGRF();

	/* Reset NewGRF errors. */
	ResetNewGRFErrors();

	/* Set up the default cargo types */
	SetupCargoForClimate(_settings_game.game_creation.landscape);

	/* Reset misc GRF features and train list display variables */
	_misc_grf_features = 0;

	_loaded_newgrf_features.has_2CC           = false;
	_loaded_newgrf_features.used_liveries     = 1 << LS_DEFAULT;
	_loaded_newgrf_features.has_newhouses     = false;
	_loaded_newgrf_features.has_newindustries = false;
	_loaded_newgrf_features.shore             = SHORE_REPLACE_NONE;

	/* Clear all GRF overrides */
	_grf_id_overrides.clear();

	InitializeSoundPool();
	_spritegroup_pool.CleanPool();
}

/**
 * Reset NewGRF data which is stored persistently in savegames.
 */
void ResetPersistentNewGRFData()
{
	/* Reset override managers */
	_engine_mngr.ResetToDefaultMapping();
	_house_mngr.ResetMapping();
	_industry_mngr.ResetMapping();
	_industile_mngr.ResetMapping();
	_airport_mngr.ResetMapping();
	_airporttile_mngr.ResetMapping();
}

/**
 * Construct the Cargo Mapping
 * @note This is the reverse of a cargo translation table
 */
static void BuildCargoTranslationMap()
{
	memset(_cur.grffile->cargo_map, 0xFF, sizeof(_cur.grffile->cargo_map));

	for (CargoID c = 0; c < NUM_CARGO; c++) {
		const CargoSpec *cs = CargoSpec::Get(c);
		if (!cs->IsValid()) continue;

		if (_cur.grffile->cargo_max == 0) {
			/* Default translation table, so just a straight mapping to bitnum */
			_cur.grffile->cargo_map[c] = cs->bitnum;
		} else {
			/* Check the translation table for this cargo's label */
			for (uint i = 0; i < _cur.grffile->cargo_max; i++) {
				if (cs->label == _cur.grffile->cargo_list[i]) {
					_cur.grffile->cargo_map[c] = i;
					break;
				}
			}
		}
	}
}

/**
 * Prepare loading a NewGRF file with its config
 * @param config The NewGRF configuration struct with name, id, parameters and alike.
 */
static void InitNewGRFFile(const GRFConfig *config)
{
	GRFFile *newfile = GetFileByFilename(config->filename);
	if (newfile != NULL) {
		/* We already loaded it once. */
		_cur.grffile = newfile;
		return;
	}

	newfile = CallocT<GRFFile>(1);

	newfile->filename = strdup(config->filename);
	newfile->grfid = config->ident.grfid;

	/* Initialise local settings to defaults */
	newfile->traininfo_vehicle_pitch = 0;
	newfile->traininfo_vehicle_width = TRAININFO_DEFAULT_VEHICLE_WIDTH;

	/* Mark price_base_multipliers as 'not set' */
	for (Price i = PR_BEGIN; i < PR_END; i++) {
		newfile->price_base_multipliers[i] = INVALID_PRICE_MODIFIER;
	}

	/* Initialise rail type map with default rail types */
	memset(newfile->railtype_map, INVALID_RAILTYPE, sizeof newfile->railtype_map);
	newfile->railtype_map[0] = RAILTYPE_RAIL;
	newfile->railtype_map[1] = RAILTYPE_ELECTRIC;
	newfile->railtype_map[2] = RAILTYPE_MONO;
	newfile->railtype_map[3] = RAILTYPE_MAGLEV;

	/* Copy the initial parameter list
	 * 'Uninitialised' parameters are zeroed as that is their default value when dynamically creating them. */
	assert_compile(lengthof(newfile->param) == lengthof(config->param) && lengthof(config->param) == 0x80);
	memset(newfile->param, 0, sizeof(newfile->param));

	assert(config->num_params <= lengthof(config->param));
	newfile->param_end = config->num_params;
	if (newfile->param_end > 0) {
		MemCpyT(newfile->param, config->param, newfile->param_end);
	}

	*_grf_files.Append() = _cur.grffile = newfile;
}


/**
 * List of what cargo labels are refittable for the given the vehicle-type.
 * Only currently active labels are applied.
 */
static const CargoLabel _default_refitmasks_rail[] = {
	'PASS', 'COAL', 'MAIL', 'LVST', 'GOOD', 'GRAI', 'WHEA', 'MAIZ', 'WOOD',
	'IORE', 'STEL', 'VALU', 'GOLD', 'DIAM', 'PAPR', 'FOOD', 'FRUT', 'CORE',
	'WATR', 'SUGR', 'TOYS', 'BATT', 'SWET', 'TOFF', 'COLA', 'CTCD', 'BUBL',
	'PLST', 'FZDR',
	0 };

static const CargoLabel _default_refitmasks_road[] = {
	0 };

static const CargoLabel _default_refitmasks_ships[] = {
	'COAL', 'MAIL', 'LVST', 'GOOD', 'GRAI', 'WHEA', 'MAIZ', 'WOOD', 'IORE',
	'STEL', 'VALU', 'GOLD', 'DIAM', 'PAPR', 'FOOD', 'FRUT', 'CORE', 'WATR',
	'RUBR', 'SUGR', 'TOYS', 'BATT', 'SWET', 'TOFF', 'COLA', 'CTCD', 'BUBL',
	'PLST', 'FZDR',
	0 };

static const CargoLabel _default_refitmasks_aircraft[] = {
	'PASS', 'MAIL', 'GOOD', 'VALU', 'GOLD', 'DIAM', 'FOOD', 'FRUT', 'SUGR',
	'TOYS', 'BATT', 'SWET', 'TOFF', 'COLA', 'CTCD', 'BUBL', 'PLST', 'FZDR',
	0 };

static const CargoLabel * const _default_refitmasks[] = {
	_default_refitmasks_rail,
	_default_refitmasks_road,
	_default_refitmasks_ships,
	_default_refitmasks_aircraft,
};


/**
 * Precalculate refit masks from cargo classes for all vehicles.
 */
static void CalculateRefitMasks()
{
	Engine *e;

	FOR_ALL_ENGINES(e) {
		EngineID engine = e->index;
		EngineInfo *ei = &e->info;
		bool only_defaultcargo; ///< Set if the vehicle shall carry only the default cargo
		const uint8 *cargo_map_for_first_refittable = NULL;

		/* Did the newgrf specify any refitting? If not, use defaults. */
		if (_gted[engine].refitmask_valid) {
			uint32 mask = 0;
			uint32 not_mask = 0;
			uint32 xor_mask = 0;

			/* If the original masks set by the grf are zero, the vehicle shall only carry the default cargo.
			 * Note: After applying the translations, the vehicle may end up carrying no defined cargo. It becomes unavailable in that case. */
			only_defaultcargo = (ei->refit_mask == 0 && _gted[engine].cargo_allowed == 0 && _gted[engine].ctt_include_mask == 0);

			const GRFFile *file = _gted[engine].refitmask_grf;
			if (file == NULL) file = e->GetGRF();
			if (file != NULL && file->grf_version >= 8 && file->cargo_max != 0) {
				cargo_map_for_first_refittable = file->cargo_map;
			}

			if (ei->refit_mask != 0) {
				if (file != NULL && file->cargo_max != 0) {
					/* Apply cargo translation table to the refit mask */
					uint num_cargo = min(32, file->cargo_max);
					for (uint i = 0; i < num_cargo; i++) {
						if (!HasBit(ei->refit_mask, i)) continue;

						CargoID c = GetCargoIDByLabel(file->cargo_list[i]);
						if (c == CT_INVALID) continue;

						SetBit(xor_mask, c);
					}
				} else {
					/* No cargo table, so use the cargo bitnum values */
					const CargoSpec *cs;
					FOR_ALL_CARGOSPECS(cs) {
						if (HasBit(ei->refit_mask, cs->bitnum)) SetBit(xor_mask, cs->Index());
					}
				}
			}

			if (_gted[engine].cargo_allowed != 0) {
				/* Build up the list of cargo types from the set cargo classes. */
				const CargoSpec *cs;
				FOR_ALL_CARGOSPECS(cs) {
					if (_gted[engine].cargo_allowed    & cs->classes) SetBit(mask,     cs->Index());
					if (_gted[engine].cargo_disallowed & cs->classes) SetBit(not_mask, cs->Index());
				}
			}

			ei->refit_mask = ((mask & ~not_mask) ^ xor_mask) & _cargo_mask;

			/* Apply explicit refit includes/excludes. */
			ei->refit_mask |= _gted[engine].ctt_include_mask;
			ei->refit_mask &= ~_gted[engine].ctt_exclude_mask;
		} else {
			uint32 xor_mask = 0;

			/* Don't apply default refit mask to wagons nor engines with no capacity */
			if (e->type != VEH_TRAIN || (e->u.rail.capacity != 0 && e->u.rail.railveh_type != RAILVEH_WAGON)) {
				const CargoLabel *cl = _default_refitmasks[e->type];
				for (uint i = 0;; i++) {
					if (cl[i] == 0) break;

					CargoID cargo = GetCargoIDByLabel(cl[i]);
					if (cargo == CT_INVALID) continue;

					SetBit(xor_mask, cargo);
				}
			}

			ei->refit_mask = xor_mask & _cargo_mask;

			/* If the mask is zero, the vehicle shall only carry the default cargo */
			only_defaultcargo = (ei->refit_mask == 0);
		}

		/* Ensure that the vehicle is either not refittable, or that the default cargo is one of the refittable cargos.
		 * Note: Vehicles refittable to no cargo are handle differently to vehicle refittable to a single cargo. The latter might have subtypes. */
		if (!only_defaultcargo && (e->type != VEH_SHIP || e->u.ship.old_refittable) && ei->cargo_type != CT_INVALID && !HasBit(ei->refit_mask, ei->cargo_type)) {
			ei->cargo_type = CT_INVALID;
		}

		/* Check if this engine's cargo type is valid. If not, set to the first refittable
		 * cargo type. Finally disable the vehicle, if there is still no cargo. */
		if (ei->cargo_type == CT_INVALID && ei->refit_mask != 0) {
			if (cargo_map_for_first_refittable == NULL) {
				/* Use first refittable cargo slot */
				ei->cargo_type = (CargoID)FindFirstBit(ei->refit_mask);
			} else {
				/* Use first refittable cargo from cargo translation table */
				byte best_local_slot = 0xFF;
				CargoID cargo_type;
				FOR_EACH_SET_CARGO_ID(cargo_type, ei->refit_mask) {
					byte local_slot = cargo_map_for_first_refittable[cargo_type];
					if (local_slot < best_local_slot) {
						best_local_slot = local_slot;
						ei->cargo_type = cargo_type;
					}
				}
			}
		}
		if (ei->cargo_type == CT_INVALID) ei->climates = 0;

		/* Clear refit_mask for not refittable ships */
		if (e->type == VEH_SHIP && !e->u.ship.old_refittable) {
			ei->refit_mask = 0;
		}
	}
}

/** Set to use the correct action0 properties for each canal feature */
static void FinaliseCanals()
{
	for (uint i = 0; i < CF_END; i++) {
		if (_water_feature[i].grffile != NULL) {
			_water_feature[i].callback_mask = _water_feature[i].grffile->canal_local_properties[i].callback_mask;
			_water_feature[i].flags = _water_feature[i].grffile->canal_local_properties[i].flags;
		}
	}
}

/** Check for invalid engines */
static void FinaliseEngineArray()
{
	Engine *e;

	FOR_ALL_ENGINES(e) {
		if (e->GetGRF() == NULL) {
			const EngineIDMapping &eid = _engine_mngr[e->index];
			if (eid.grfid != INVALID_GRFID || eid.internal_id != eid.substitute_id) {
				e->info.string_id = STR_NEWGRF_INVALID_ENGINE;
			}
		}

		/* When the train does not set property 27 (misc flags), but it
		 * is overridden by a NewGRF graphically we want to disable the
		 * flipping possibility. */
		if (e->type == VEH_TRAIN && !_gted[e->index].prop27_set && e->GetGRF() != NULL && is_custom_sprite(e->u.rail.image_index)) {
			ClrBit(e->info.misc_flags, EF_RAIL_FLIPS);
		}

		/* Skip wagons, there livery is defined via the engine */
		if (e->type != VEH_TRAIN || e->u.rail.railveh_type != RAILVEH_WAGON) {
			LiveryScheme ls = GetEngineLiveryScheme(e->index, INVALID_ENGINE, NULL);
			SetBit(_loaded_newgrf_features.used_liveries, ls);
			/* Note: For ships and roadvehicles we assume that they cannot be refitted between passenger and freight */

			if (e->type == VEH_TRAIN) {
				SetBit(_loaded_newgrf_features.used_liveries, LS_FREIGHT_WAGON);
				switch (ls) {
					case LS_STEAM:
					case LS_DIESEL:
					case LS_ELECTRIC:
					case LS_MONORAIL:
					case LS_MAGLEV:
						SetBit(_loaded_newgrf_features.used_liveries, LS_PASSENGER_WAGON_STEAM + ls - LS_STEAM);
						break;

					case LS_DMU:
					case LS_EMU:
						SetBit(_loaded_newgrf_features.used_liveries, LS_PASSENGER_WAGON_DIESEL + ls - LS_DMU);
						break;

					default: NOT_REACHED();
				}
			}
		}
	}
}

/** Check for invalid cargos */
static void FinaliseCargoArray()
{
	for (CargoID c = 0; c < NUM_CARGO; c++) {
		CargoSpec *cs = CargoSpec::Get(c);
		if (!cs->IsValid()) {
			cs->name = cs->name_single = cs->units_volume = STR_NEWGRF_INVALID_CARGO;
			cs->quantifier = STR_NEWGRF_INVALID_CARGO_QUANTITY;
			cs->abbrev = STR_NEWGRF_INVALID_CARGO_ABBREV;
		}
	}
}

/**
 * Check if a given housespec is valid and disable it if it's not.
 * The housespecs that follow it are used to check the validity of
 * multitile houses.
 * @param hs The housespec to check.
 * @param next1 The housespec that follows \c hs.
 * @param next2 The housespec that follows \c next1.
 * @param next3 The housespec that follows \c next2.
 * @param filename The filename of the newgrf this house was defined in.
 * @return Whether the given housespec is valid.
 */
static bool IsHouseSpecValid(HouseSpec *hs, const HouseSpec *next1, const HouseSpec *next2, const HouseSpec *next3, const char *filename)
{
	if (((hs->building_flags & BUILDING_HAS_2_TILES) != 0 &&
				(next1 == NULL || !next1->enabled || (next1->building_flags & BUILDING_HAS_1_TILE) != 0)) ||
			((hs->building_flags & BUILDING_HAS_4_TILES) != 0 &&
				(next2 == NULL || !next2->enabled || (next2->building_flags & BUILDING_HAS_1_TILE) != 0 ||
				next3 == NULL || !next3->enabled || (next3->building_flags & BUILDING_HAS_1_TILE) != 0))) {
		hs->enabled = false;
		if (filename != NULL) DEBUG(grf, 1, "FinaliseHouseArray: %s defines house %d as multitile, but no suitable tiles follow. Disabling house.", filename, hs->grf_prop.local_id);
		return false;
	}

	/* Some places sum population by only counting north tiles. Other places use all tiles causing desyncs.
	 * As the newgrf specs define population to be zero for non-north tiles, we just disable the offending house.
	 * If you want to allow non-zero populations somewhen, make sure to sum the population of all tiles in all places. */
	if (((hs->building_flags & BUILDING_HAS_2_TILES) != 0 && next1->population != 0) ||
			((hs->building_flags & BUILDING_HAS_4_TILES) != 0 && (next2->population != 0 || next3->population != 0))) {
		hs->enabled = false;
		if (filename != NULL) DEBUG(grf, 1, "FinaliseHouseArray: %s defines multitile house %d with non-zero population on additional tiles. Disabling house.", filename, hs->grf_prop.local_id);
		return false;
	}

	/* Substitute type is also used for override, and having an override with a different size causes crashes.
	 * This check should only be done for NewGRF houses because grf_prop.subst_id is not set for original houses.*/
	if (filename != NULL && (hs->building_flags & BUILDING_HAS_1_TILE) != (HouseSpec::Get(hs->grf_prop.subst_id)->building_flags & BUILDING_HAS_1_TILE)) {
		hs->enabled = false;
		DEBUG(grf, 1, "FinaliseHouseArray: %s defines house %d with different house size then it's substitute type. Disabling house.", filename, hs->grf_prop.local_id);
		return false;
	}

	/* Make sure that additional parts of multitile houses are not available. */
	if ((hs->building_flags & BUILDING_HAS_1_TILE) == 0 && (hs->building_availability & HZ_ZONALL) != 0 && (hs->building_availability & HZ_CLIMALL) != 0) {
		hs->enabled = false;
		if (filename != NULL) DEBUG(grf, 1, "FinaliseHouseArray: %s defines house %d without a size but marked it as available. Disabling house.", filename, hs->grf_prop.local_id);
		return false;
	}

	return true;
}

/**
 * Make sure there is at least one house available in the year 0 for the given
 * climate / housezone combination.
 * @param bitmask The climate and housezone to check for. Exactly one climate
 *   bit and one housezone bit should be set.
 */
static void EnsureEarlyHouse(HouseZones bitmask)
{
	Year min_year = MAX_YEAR;

	for (int i = 0; i < HOUSE_MAX; i++) {
		HouseSpec *hs = HouseSpec::Get(i);
		if (hs == NULL || !hs->enabled) continue;
		if ((hs->building_availability & bitmask) != bitmask) continue;
		if (hs->min_year < min_year) min_year = hs->min_year;
	}

	if (min_year == 0) return;

	for (int i = 0; i < HOUSE_MAX; i++) {
		HouseSpec *hs = HouseSpec::Get(i);
		if (hs == NULL || !hs->enabled) continue;
		if ((hs->building_availability & bitmask) != bitmask) continue;
		if (hs->min_year == min_year) hs->min_year = 0;
	}
}

/**
 * Add all new houses to the house array. House properties can be set at any
 * time in the GRF file, so we can only add a house spec to the house array
 * after the file has finished loading. We also need to check the dates, due to
 * the TTDPatch behaviour described below that we need to emulate.
 */
static void FinaliseHouseArray()
{
	/* If there are no houses with start dates before 1930, then all houses
	 * with start dates of 1930 have them reset to 0. This is in order to be
	 * compatible with TTDPatch, where if no houses have start dates before
	 * 1930 and the date is before 1930, the game pretends that this is 1930.
	 * If there have been any houses defined with start dates before 1930 then
	 * the dates are left alone.
	 * On the other hand, why 1930? Just 'fix' the houses with the lowest
	 * minimum introduction date to 0.
	 */
	const GRFFile * const *end = _grf_files.End();
	for (GRFFile **file = _grf_files.Begin(); file != end; file++) {
		HouseSpec **&housespec = (*file)->housespec;
		if (housespec == NULL) continue;

		for (int i = 0; i < HOUSE_MAX; i++) {
			HouseSpec *hs = housespec[i];

			if (hs == NULL) continue;

			const HouseSpec *next1 = (i + 1 < HOUSE_MAX ? housespec[i + 1] : NULL);
			const HouseSpec *next2 = (i + 2 < HOUSE_MAX ? housespec[i + 2] : NULL);
			const HouseSpec *next3 = (i + 3 < HOUSE_MAX ? housespec[i + 3] : NULL);

			if (!IsHouseSpecValid(hs, next1, next2, next3, (*file)->filename)) continue;

			_house_mngr.SetEntitySpec(hs);
		}
	}

	for (int i = 0; i < HOUSE_MAX; i++) {
		HouseSpec *hs = HouseSpec::Get(i);
		const HouseSpec *next1 = (i + 1 < HOUSE_MAX ? HouseSpec::Get(i + 1) : NULL);
		const HouseSpec *next2 = (i + 2 < HOUSE_MAX ? HouseSpec::Get(i + 2) : NULL);
		const HouseSpec *next3 = (i + 3 < HOUSE_MAX ? HouseSpec::Get(i + 3) : NULL);

		/* We need to check all houses again to we are sure that multitile houses
		 * did get consecutive IDs and none of the parts are missing. */
		if (!IsHouseSpecValid(hs, next1, next2, next3, NULL)) {
			/* GetHouseNorthPart checks 3 houses that are directly before
			 * it in the house pool. If any of those houses have multi-tile
			 * flags set it assumes it's part of a multitile house. Since
			 * we can have invalid houses in the pool marked as disabled, we
			 * don't want to have them influencing valid tiles. As such set
			 * building_flags to zero here to make sure any house following
			 * this one in the pool is properly handled as 1x1 house. */
			hs->building_flags = TILE_NO_FLAG;
		}
	}

	HouseZones climate_mask = (HouseZones)(1 << (_settings_game.game_creation.landscape + 12));
	EnsureEarlyHouse(HZ_ZON1 | climate_mask);
	EnsureEarlyHouse(HZ_ZON2 | climate_mask);
	EnsureEarlyHouse(HZ_ZON3 | climate_mask);
	EnsureEarlyHouse(HZ_ZON4 | climate_mask);
	EnsureEarlyHouse(HZ_ZON5 | climate_mask);

	if (_settings_game.game_creation.landscape == LT_ARCTIC) {
		EnsureEarlyHouse(HZ_ZON1 | HZ_SUBARTC_ABOVE);
		EnsureEarlyHouse(HZ_ZON2 | HZ_SUBARTC_ABOVE);
		EnsureEarlyHouse(HZ_ZON3 | HZ_SUBARTC_ABOVE);
		EnsureEarlyHouse(HZ_ZON4 | HZ_SUBARTC_ABOVE);
		EnsureEarlyHouse(HZ_ZON5 | HZ_SUBARTC_ABOVE);
	}
}

/**
 * Add all new industries to the industry array. Industry properties can be set at any
 * time in the GRF file, so we can only add a industry spec to the industry array
 * after the file has finished loading.
 */
static void FinaliseIndustriesArray()
{
	const GRFFile * const *end = _grf_files.End();
	for (GRFFile **file = _grf_files.Begin(); file != end; file++) {
		IndustrySpec **&industryspec = (*file)->industryspec;
		IndustryTileSpec **&indtspec = (*file)->indtspec;
		if (industryspec != NULL) {
			for (int i = 0; i < NUM_INDUSTRYTYPES; i++) {
				IndustrySpec *indsp = industryspec[i];

				if (indsp != NULL && indsp->enabled) {
					StringID strid;
					/* process the conversion of text at the end, so to be sure everything will be fine
					 * and available.  Check if it does not return undefind marker, which is a very good sign of a
					 * substitute industry who has not changed the string been examined, thus using it as such */
					strid = GetGRFStringID(indsp->grf_prop.grffile->grfid, indsp->name);
					if (strid != STR_UNDEFINED) indsp->name = strid;

					strid = GetGRFStringID(indsp->grf_prop.grffile->grfid, indsp->closure_text);
					if (strid != STR_UNDEFINED) indsp->closure_text = strid;

					strid = GetGRFStringID(indsp->grf_prop.grffile->grfid, indsp->production_up_text);
					if (strid != STR_UNDEFINED) indsp->production_up_text = strid;

					strid = GetGRFStringID(indsp->grf_prop.grffile->grfid, indsp->production_down_text);
					if (strid != STR_UNDEFINED) indsp->production_down_text = strid;

					strid = GetGRFStringID(indsp->grf_prop.grffile->grfid, indsp->new_industry_text);
					if (strid != STR_UNDEFINED) indsp->new_industry_text = strid;

					if (indsp->station_name != STR_NULL) {
						/* STR_NULL (0) can be set by grf.  It has a meaning regarding assignation of the
						 * station's name. Don't want to lose the value, therefore, do not process. */
						strid = GetGRFStringID(indsp->grf_prop.grffile->grfid, indsp->station_name);
						if (strid != STR_UNDEFINED) indsp->station_name = strid;
					}

					_industry_mngr.SetEntitySpec(indsp);
					_loaded_newgrf_features.has_newindustries = true;
				}
			}
		}

		if (indtspec != NULL) {
			for (int i = 0; i < NUM_INDUSTRYTILES; i++) {
				IndustryTileSpec *indtsp = indtspec[i];
				if (indtsp != NULL) {
					_industile_mngr.SetEntitySpec(indtsp);
				}
			}
		}
	}

	for (uint j = 0; j < NUM_INDUSTRYTYPES; j++) {
		IndustrySpec *indsp = &_industry_specs[j];
		if (indsp->enabled && indsp->grf_prop.grffile != NULL) {
			for (uint i = 0; i < 3; i++) {
				indsp->conflicting[i] = MapNewGRFIndustryType(indsp->conflicting[i], indsp->grf_prop.grffile->grfid);
			}
		}
		if (!indsp->enabled) {
			indsp->name = STR_NEWGRF_INVALID_INDUSTRYTYPE;
		}
	}
}

/**
 * Add all new objects to the object array. Object properties can be set at any
 * time in the GRF file, so we can only add an object spec to the object array
 * after the file has finished loading.
 */
static void FinaliseObjectsArray()
{
	const GRFFile * const *end = _grf_files.End();
	for (GRFFile **file = _grf_files.Begin(); file != end; file++) {
		ObjectSpec **&objectspec = (*file)->objectspec;
		if (objectspec != NULL) {
			for (int i = 0; i < NUM_OBJECTS; i++) {
				if (objectspec[i] != NULL && objectspec[i]->grf_prop.grffile != NULL && objectspec[i]->enabled) {
					_object_mngr.SetEntitySpec(objectspec[i]);
				}
			}
		}
	}
}

/**
 * Add all new airports to the airport array. Airport properties can be set at any
 * time in the GRF file, so we can only add a airport spec to the airport array
 * after the file has finished loading.
 */
static void FinaliseAirportsArray()
{
	const GRFFile * const *end = _grf_files.End();
	for (GRFFile **file = _grf_files.Begin(); file != end; file++) {
		AirportSpec **&airportspec = (*file)->airportspec;
		if (airportspec != NULL) {
			for (int i = 0; i < NUM_AIRPORTS; i++) {
				if (airportspec[i] != NULL && airportspec[i]->enabled) {
					_airport_mngr.SetEntitySpec(airportspec[i]);
				}
			}
		}

		AirportTileSpec **&airporttilespec = (*file)->airtspec;
		if (airporttilespec != NULL) {
			for (uint i = 0; i < NUM_AIRPORTTILES; i++) {
				if (airporttilespec[i] != NULL && airporttilespec[i]->enabled) {
					_airporttile_mngr.SetEntitySpec(airporttilespec[i]);
				}
			}
		}
	}
}

/* Here we perform initial decoding of some special sprites (as are they
 * described at http://www.ttdpatch.net/src/newgrf.txt, but this is only a very
 * partial implementation yet).
 * XXX: We consider GRF files trusted. It would be trivial to exploit OTTD by
 * a crafted invalid GRF file. We should tell that to the user somehow, or
 * better make this more robust in the future. */
static void DecodeSpecialSprite(byte *buf, uint num, GrfLoadingStage stage)
{
	/* XXX: There is a difference between staged loading in TTDPatch and
	 * here.  In TTDPatch, for some reason actions 1 and 2 are carried out
	 * during stage 1, whilst action 3 is carried out during stage 2 (to
	 * "resolve" cargo IDs... wtf). This is a little problem, because cargo
	 * IDs are valid only within a given set (action 1) block, and may be
	 * overwritten after action 3 associates them. But overwriting happens
	 * in an earlier stage than associating, so...  We just process actions
	 * 1 and 2 in stage 2 now, let's hope that won't get us into problems.
	 * --pasky
	 * We need a pre-stage to set up GOTO labels of Action 0x10 because the grf
	 * is not in memory and scanning the file every time would be too expensive.
	 * In other stages we skip action 0x10 since it's already dealt with. */
	static const SpecialSpriteHandler handlers[][GLS_END] = {
		/* 0x00 */ { NULL,     SafeChangeInfo, NULL,       NULL,           ReserveChangeInfo, FeatureChangeInfo, },
		/* 0x01 */ { SkipAct1, SkipAct1,  SkipAct1,        SkipAct1,       SkipAct1,          NewSpriteSet, },
		/* 0x02 */ { NULL,     NULL,      NULL,            NULL,           NULL,              NewSpriteGroup, },
		/* 0x03 */ { NULL,     GRFUnsafe, NULL,            NULL,           NULL,              FeatureMapSpriteGroup, },
		/* 0x04 */ { NULL,     NULL,      NULL,            NULL,           NULL,              FeatureNewName, },
		/* 0x05 */ { SkipAct5, SkipAct5,  SkipAct5,        SkipAct5,       SkipAct5,          GraphicsNew, },
		/* 0x06 */ { NULL,     NULL,      NULL,            CfgApply,       CfgApply,          CfgApply, },
		/* 0x07 */ { NULL,     NULL,      NULL,            NULL,           SkipIf,            SkipIf, },
		/* 0x08 */ { ScanInfo, NULL,      NULL,            GRFInfo,        GRFInfo,           GRFInfo, },
		/* 0x09 */ { NULL,     NULL,      NULL,            SkipIf,         SkipIf,            SkipIf, },
		/* 0x0A */ { SkipActA, SkipActA,  SkipActA,        SkipActA,       SkipActA,          SpriteReplace, },
		/* 0x0B */ { NULL,     NULL,      NULL,            GRFLoadError,   GRFLoadError,      GRFLoadError, },
		/* 0x0C */ { NULL,     NULL,      NULL,            GRFComment,     NULL,              GRFComment, },
		/* 0x0D */ { NULL,     SafeParamSet, NULL,         ParamSet,       ParamSet,          ParamSet, },
		/* 0x0E */ { NULL,     SafeGRFInhibit, NULL,       GRFInhibit,     GRFInhibit,        GRFInhibit, },
		/* 0x0F */ { NULL,     GRFUnsafe, NULL,            FeatureTownName, NULL,             NULL, },
		/* 0x10 */ { NULL,     NULL,      DefineGotoLabel, NULL,           NULL,              NULL, },
		/* 0x11 */ { SkipAct11,GRFUnsafe, SkipAct11,       SkipAct11,      SkipAct11,         GRFSound, },
		/* 0x12 */ { SkipAct12, SkipAct12, SkipAct12,      SkipAct12,      SkipAct12,         LoadFontGlyph, },
		/* 0x13 */ { NULL,     NULL,      NULL,            NULL,           NULL,              TranslateGRFStrings, },
		/* 0x14 */ { StaticGRFInfo, NULL, NULL,            NULL,           NULL,              NULL, },
	};

	GRFLocation location(_cur.grfconfig->ident.grfid, _cur.nfo_line);

	GRFLineToSpriteOverride::iterator it = _grf_line_to_action6_sprite_override.find(location);
	if (it == _grf_line_to_action6_sprite_override.end()) {
		/* No preloaded sprite to work with; read the
		 * pseudo sprite content. */
		FioReadBlock(buf, num);
	} else {
		/* Use the preloaded sprite data. */
		buf = _grf_line_to_action6_sprite_override[location];
		grfmsg(7, "DecodeSpecialSprite: Using preloaded pseudo sprite data");

		/* Skip the real (original) content of this action. */
		FioSeekTo(num, SEEK_CUR);
	}

	ByteReader br(buf, buf + num);
	ByteReader *bufp = &br;

	try {
		byte action = bufp->ReadByte();

		if (action == 0xFF) {
			grfmsg(7, "DecodeSpecialSprite: Handling data block in stage %d", stage);
			GRFDataBlock(bufp);
		} else if (action == 0xFE) {
			grfmsg(7, "DecodeSpecialSprite: Handling import block in stage %d", stage);
			GRFImportBlock(bufp);
		} else if (action >= lengthof(handlers)) {
			grfmsg(7, "DecodeSpecialSprite: Skipping unknown action 0x%02X", action);
		} else if (handlers[action][stage] == NULL) {
			grfmsg(7, "DecodeSpecialSprite: Skipping action 0x%02X in stage %d", action, stage);
		} else {
			grfmsg(7, "DecodeSpecialSprite: Handling action 0x%02X in stage %d", action, stage);
			handlers[action][stage](bufp);
		}
	} catch (...) {
		grfmsg(1, "DecodeSpecialSprite: Tried to read past end of pseudo-sprite data");
		DisableGrf(STR_NEWGRF_ERROR_READ_BOUNDS);
	}
}


/**
 * Load a particular NewGRF.
 * @param config     The configuration of the to be loaded NewGRF.
 * @param file_index The Fio index of the first NewGRF to load.
 * @param stage      The loading stage of the NewGRF.
 * @param subdir     The sub directory to find the NewGRF in.
 */
void LoadNewGRFFile(GRFConfig *config, uint file_index, GrfLoadingStage stage, Subdirectory subdir)
{
	const char *filename = config->filename;
	uint16 num;

	/* A .grf file is activated only if it was active when the game was
	 * started.  If a game is loaded, only its active .grfs will be
	 * reactivated, unless "loadallgraphics on" is used.  A .grf file is
	 * considered active if its action 8 has been processed, i.e. its
	 * action 8 hasn't been skipped using an action 7.
	 *
	 * During activation, only actions 0, 1, 2, 3, 4, 5, 7, 8, 9, 0A and 0B are
	 * carried out.  All others are ignored, because they only need to be
	 * processed once at initialization.  */
	if (stage != GLS_FILESCAN && stage != GLS_SAFETYSCAN && stage != GLS_LABELSCAN) {
		_cur.grffile = GetFileByFilename(filename);
		if (_cur.grffile == NULL) usererror("File '%s' lost in cache.\n", filename);
		if (stage == GLS_RESERVE && config->status != GCS_INITIALISED) return;
		if (stage == GLS_ACTIVATION && !HasBit(config->flags, GCF_RESERVED)) return;
		_cur.grffile->is_ottdfile = config->IsOpenTTDBaseGRF();
	}

	if (file_index > LAST_GRF_SLOT) {
		DEBUG(grf, 0, "'%s' is not loaded as the maximum number of GRFs has been reached", filename);
		config->status = GCS_DISABLED;
		config->error  = new GRFError(STR_NEWGRF_ERROR_MSG_FATAL, STR_NEWGRF_ERROR_TOO_MANY_NEWGRFS_LOADED);
		return;
	}

	FioOpenFile(file_index, filename, subdir);
	_cur.file_index = file_index; // XXX
	_palette_remap_grf[_cur.file_index] = (config->palette & GRFP_USE_MASK);

	_cur.grfconfig = config;

	DEBUG(grf, 2, "LoadNewGRFFile: Reading NewGRF-file '%s'", filename);

	/* Skip the first sprite; we don't care about how many sprites this
	 * does contain; newest TTDPatches and George's longvehicles don't
	 * neither, apparently. */
	if (FioReadWord() == 4 && FioReadByte() == 0xFF) {
		FioReadDword();
	} else {
		DEBUG(grf, 7, "LoadNewGRFFile: Custom .grf has invalid format");
		return;
	}

	_cur.ClearDataForNextFile();

	ReusableBuffer<byte> buf;

	while ((num = FioReadWord()) != 0) {
		byte type = FioReadByte();
		_cur.nfo_line++;

		if (type == 0xFF) {
			if (_cur.skip_sprites == 0) {
				DecodeSpecialSprite(buf.Allocate(num), num, stage);

				/* Stop all processing if we are to skip the remaining sprites */
				if (_cur.skip_sprites == -1) break;

				continue;
			} else {
				FioSkipBytes(num);
			}
		} else {
			if (_cur.skip_sprites == 0) {
				grfmsg(0, "LoadNewGRFFile: Unexpected sprite, disabling");
				DisableGrf(STR_NEWGRF_ERROR_UNEXPECTED_SPRITE);
				break;
			}

			FioSkipBytes(7);
			SkipSpriteData(type, num - 8);
		}

		if (_cur.skip_sprites > 0) _cur.skip_sprites--;
	}
}

/**
 * Relocates the old shore sprites at new positions.
 *
 * 1. If shore sprites are neither loaded by Action5 nor ActionA, the extra sprites from openttd(w/d).grf are used. (SHORE_REPLACE_ONLY_NEW)
 * 2. If a newgrf replaces some shore sprites by ActionA. The (maybe also replaced) grass tiles are used for corner shores. (SHORE_REPLACE_ACTION_A)
 * 3. If a newgrf replaces shore sprites by Action5 any shore replacement by ActionA has no effect. (SHORE_REPLACE_ACTION_5)
 */
static void ActivateOldShore()
{
	/* Use default graphics, if no shore sprites were loaded.
	 * Should not happen, as openttd(w/d).grf includes some. */
	if (_loaded_newgrf_features.shore == SHORE_REPLACE_NONE) _loaded_newgrf_features.shore = SHORE_REPLACE_ACTION_A;

	if (_loaded_newgrf_features.shore != SHORE_REPLACE_ACTION_5) {
		DupSprite(SPR_ORIGINALSHORE_START +  1, SPR_SHORE_BASE +  1); // SLOPE_W
		DupSprite(SPR_ORIGINALSHORE_START +  2, SPR_SHORE_BASE +  2); // SLOPE_S
		DupSprite(SPR_ORIGINALSHORE_START +  6, SPR_SHORE_BASE +  3); // SLOPE_SW
		DupSprite(SPR_ORIGINALSHORE_START +  0, SPR_SHORE_BASE +  4); // SLOPE_E
		DupSprite(SPR_ORIGINALSHORE_START +  4, SPR_SHORE_BASE +  6); // SLOPE_SE
		DupSprite(SPR_ORIGINALSHORE_START +  3, SPR_SHORE_BASE +  8); // SLOPE_N
		DupSprite(SPR_ORIGINALSHORE_START +  7, SPR_SHORE_BASE +  9); // SLOPE_NW
		DupSprite(SPR_ORIGINALSHORE_START +  5, SPR_SHORE_BASE + 12); // SLOPE_NE
	}

	if (_loaded_newgrf_features.shore == SHORE_REPLACE_ACTION_A) {
		DupSprite(SPR_FLAT_GRASS_TILE + 16, SPR_SHORE_BASE +  0); // SLOPE_STEEP_S
		DupSprite(SPR_FLAT_GRASS_TILE + 17, SPR_SHORE_BASE +  5); // SLOPE_STEEP_W
		DupSprite(SPR_FLAT_GRASS_TILE +  7, SPR_SHORE_BASE +  7); // SLOPE_WSE
		DupSprite(SPR_FLAT_GRASS_TILE + 15, SPR_SHORE_BASE + 10); // SLOPE_STEEP_N
		DupSprite(SPR_FLAT_GRASS_TILE + 11, SPR_SHORE_BASE + 11); // SLOPE_NWS
		DupSprite(SPR_FLAT_GRASS_TILE + 13, SPR_SHORE_BASE + 13); // SLOPE_ENW
		DupSprite(SPR_FLAT_GRASS_TILE + 14, SPR_SHORE_BASE + 14); // SLOPE_SEN
		DupSprite(SPR_FLAT_GRASS_TILE + 18, SPR_SHORE_BASE + 15); // SLOPE_STEEP_E

		/* XXX - SLOPE_EW, SLOPE_NS are currently not used.
		 *       If they would be used somewhen, then these grass tiles will most like not look as needed */
		DupSprite(SPR_FLAT_GRASS_TILE +  5, SPR_SHORE_BASE + 16); // SLOPE_EW
		DupSprite(SPR_FLAT_GRASS_TILE + 10, SPR_SHORE_BASE + 17); // SLOPE_NS
	}
}

/**
 * Decide whether price base multipliers of grfs shall apply globally or only to the grf specifying them
 */
static void FinalisePriceBaseMultipliers()
{
	extern const PriceBaseSpec _price_base_specs[];
	/** Features, to which '_grf_id_overrides' applies. Currently vehicle features only. */
	static const uint32 override_features = (1 << GSF_TRAINS) | (1 << GSF_ROADVEHICLES) | (1 << GSF_SHIPS) | (1 << GSF_AIRCRAFT);

	/* Evaluate grf overrides */
	int num_grfs = _grf_files.Length();
	int *grf_overrides = AllocaM(int, num_grfs);
	for (int i = 0; i < num_grfs; i++) {
		grf_overrides[i] = -1;

		GRFFile *source = _grf_files[i];
		uint32 override = _grf_id_overrides[source->grfid];
		if (override == 0) continue;

		GRFFile *dest = GetFileByGRFID(override);
		if (dest == NULL) continue;

		grf_overrides[i] = _grf_files.FindIndex(dest);
		assert(grf_overrides[i] >= 0);
	}

	/* Override features and price base multipliers of earlier loaded grfs */
	for (int i = 0; i < num_grfs; i++) {
		if (grf_overrides[i] < 0 || grf_overrides[i] >= i) continue;
		GRFFile *source = _grf_files[i];
		GRFFile *dest = _grf_files[grf_overrides[i]];

		uint32 features = (source->grf_features | dest->grf_features) & override_features;
		source->grf_features |= features;
		dest->grf_features |= features;

		for (Price p = PR_BEGIN; p < PR_END; p++) {
			/* No price defined -> nothing to do */
			if (!HasBit(features, _price_base_specs[p].grf_feature) || source->price_base_multipliers[p] == INVALID_PRICE_MODIFIER) continue;
			DEBUG(grf, 3, "'%s' overrides price base multiplier %d of '%s'", source->filename, p, dest->filename);
			dest->price_base_multipliers[p] = source->price_base_multipliers[p];
		}
	}

	/* Propagate features and price base multipliers of afterwards loaded grfs, if none is present yet */
	for (int i = num_grfs - 1; i >= 0; i--) {
		if (grf_overrides[i] < 0 || grf_overrides[i] <= i) continue;
		GRFFile *source = _grf_files[i];
		GRFFile *dest = _grf_files[grf_overrides[i]];

		uint32 features = (source->grf_features | dest->grf_features) & override_features;
		source->grf_features |= features;
		dest->grf_features |= features;

		for (Price p = PR_BEGIN; p < PR_END; p++) {
			/* Already a price defined -> nothing to do */
			if (!HasBit(features, _price_base_specs[p].grf_feature) || dest->price_base_multipliers[p] != INVALID_PRICE_MODIFIER) continue;
			DEBUG(grf, 3, "Price base multiplier %d from '%s' propagated to '%s'", p, source->filename, dest->filename);
			dest->price_base_multipliers[p] = source->price_base_multipliers[p];
		}
	}

	/* The 'master grf' now have the correct multipliers. Assign them to the 'addon grfs' to make everything consistent. */
	for (int i = 0; i < num_grfs; i++) {
		if (grf_overrides[i] < 0) continue;
		GRFFile *source = _grf_files[i];
		GRFFile *dest = _grf_files[grf_overrides[i]];

		uint32 features = (source->grf_features | dest->grf_features) & override_features;
		source->grf_features |= features;
		dest->grf_features |= features;

		for (Price p = PR_BEGIN; p < PR_END; p++) {
			if (!HasBit(features, _price_base_specs[p].grf_feature)) continue;
			if (source->price_base_multipliers[p] != dest->price_base_multipliers[p]) {
				DEBUG(grf, 3, "Price base multiplier %d from '%s' propagated to '%s'", p, dest->filename, source->filename);
			}
			source->price_base_multipliers[p] = dest->price_base_multipliers[p];
		}
	}

	/* Apply fallback prices for grf version < 8 */
	const GRFFile * const *end = _grf_files.End();
	for (GRFFile **file = _grf_files.Begin(); file != end; file++) {
		if ((*file)->grf_version >= 8) continue;
		PriceMultipliers &price_base_multipliers = (*file)->price_base_multipliers;
		for (Price p = PR_BEGIN; p < PR_END; p++) {
			Price fallback_price = _price_base_specs[p].fallback_price;
			if (fallback_price != INVALID_PRICE && price_base_multipliers[p] == INVALID_PRICE_MODIFIER) {
				/* No price multiplier has been set.
				 * So copy the multiplier from the fallback price, maybe a multiplier was set there. */
				price_base_multipliers[p] = price_base_multipliers[fallback_price];
			}
		}
	}

	/* Decide local/global scope of price base multipliers */
	for (GRFFile **file = _grf_files.Begin(); file != end; file++) {
		PriceMultipliers &price_base_multipliers = (*file)->price_base_multipliers;
		for (Price p = PR_BEGIN; p < PR_END; p++) {
			if (price_base_multipliers[p] == INVALID_PRICE_MODIFIER) {
				/* No multiplier was set; set it to a neutral value */
				price_base_multipliers[p] = 0;
			} else {
				if (!HasBit((*file)->grf_features, _price_base_specs[p].grf_feature)) {
					/* The grf does not define any objects of the feature,
					 * so it must be a difficulty setting. Apply it globally */
					DEBUG(grf, 3, "'%s' sets global price base multiplier %d", (*file)->filename, p);
					SetPriceBaseMultiplier(p, price_base_multipliers[p]);
					price_base_multipliers[p] = 0;
				} else {
					DEBUG(grf, 3, "'%s' sets local price base multiplier %d", (*file)->filename, p);
				}
			}
		}
	}
}

void InitDepotWindowBlockSizes();

extern void InitGRFTownGeneratorNames();

/** Finish loading NewGRFs and execute needed post-processing */
static void AfterLoadGRFs()
{
	for (StringIDToGRFIDMapping::iterator it = _string_to_grf_mapping.begin(); it != _string_to_grf_mapping.end(); it++) {
		*((*it).first) = MapGRFStringID((*it).second, *((*it).first));
	}
	_string_to_grf_mapping.clear();

	/* Free the action 6 override sprites. */
	for (GRFLineToSpriteOverride::iterator it = _grf_line_to_action6_sprite_override.begin(); it != _grf_line_to_action6_sprite_override.end(); it++) {
		free((*it).second);
	}
	_grf_line_to_action6_sprite_override.clear();

	/* Polish cargos */
	FinaliseCargoArray();

	/* Pre-calculate all refit masks after loading GRF files. */
	CalculateRefitMasks();

	/* Polish engines */
	FinaliseEngineArray();

	/* Set the actually used Canal properties */
	FinaliseCanals();

	/* Set the block size in the depot windows based on vehicle sprite sizes */
	InitDepotWindowBlockSizes();

	/* Add all new houses to the house array. */
	FinaliseHouseArray();

	/* Add all new industries to the industry array. */
	FinaliseIndustriesArray();

	/* Add all new objects to the object array. */
	FinaliseObjectsArray();

	InitializeSortedCargoSpecs();

	/* Sort the list of industry types. */
	SortIndustryTypes();

	/* Create dynamic list of industry legends for smallmap_gui.cpp */
	BuildIndustriesLegend();

	/* Add all new airports to the airports array. */
	FinaliseAirportsArray();
	BindAirportSpecs();

	/* Update the townname generators list */
	InitGRFTownGeneratorNames();

	/* Run all queued vehicle list order changes */
	CommitVehicleListOrderChanges();

	/* Load old shore sprites in new position, if they were replaced by ActionA */
	ActivateOldShore();

	/* Set up custom rail types */
	InitRailTypes();

	Engine *e;
	FOR_ALL_ENGINES_OF_TYPE(e, VEH_ROAD) {
		if (_gted[e->index].rv_max_speed != 0) {
			/* Set RV maximum speed from the mph/0.8 unit value */
			e->u.road.max_speed = _gted[e->index].rv_max_speed * 4;
		}
	}

	FOR_ALL_ENGINES_OF_TYPE(e, VEH_TRAIN) {
		RailType railtype = GetRailTypeByLabel(_gted[e->index].railtypelabel);
		if (railtype == INVALID_RAILTYPE) {
			/* Rail type is not available, so disable this engine */
			e->info.climates = 0;
		} else {
			e->u.rail.railtype = railtype;
		}
	}

	SetYearEngineAgingStops();

	FinalisePriceBaseMultipliers();

	/* Deallocate temporary loading data */
	free(_gted);
	_grm_sprites.clear();
}

/**
 * Load all the NewGRFs.
 * @param load_index The offset for the first sprite to add.
 * @param file_index The Fio index of the first NewGRF to load.
 */
void LoadNewGRF(uint load_index, uint file_index)
{
	/* In case of networking we need to "sync" the start values
	 * so all NewGRFs are loaded equally. For this we use the
	 * start date of the game and we set the counters, etc. to
	 * 0 so they're the same too. */
	Date date            = _date;
	Year year            = _cur_year;
	DateFract date_fract = _date_fract;
	uint16 tick_counter  = _tick_counter;
	byte display_opt     = _display_opt;

	if (_networking) {
		_cur_year     = _settings_game.game_creation.starting_year;
		_date         = ConvertYMDToDate(_cur_year, 0, 1);
		_date_fract   = 0;
		_tick_counter = 0;
		_display_opt  = 0;
	}

	InitializeGRFSpecial();

	ResetNewGRFData();

	/*
	 * Reset the status of all files, so we can 'retry' to load them.
	 * This is needed when one for example rearranges the NewGRFs in-game
	 * and a previously disabled NewGRF becomes useable. If it would not
	 * be reset, the NewGRF would remain disabled even though it should
	 * have been enabled.
	 */
	for (GRFConfig *c = _grfconfig; c != NULL; c = c->next) {
		if (c->status != GCS_NOT_FOUND) c->status = GCS_UNKNOWN;
	}

	_cur.spriteid = load_index;

	/* Load newgrf sprites
	 * in each loading stage, (try to) open each file specified in the config
	 * and load information from it. */
	for (GrfLoadingStage stage = GLS_LABELSCAN; stage <= GLS_ACTIVATION; stage++) {
		/* Set activated grfs back to will-be-activated between reservation- and activation-stage.
		 * This ensures that action7/9 conditions 0x06 - 0x0A work correctly. */
		for (GRFConfig *c = _grfconfig; c != NULL; c = c->next) {
			if (c->status == GCS_ACTIVATED) c->status = GCS_INITIALISED;
		}

		if (stage == GLS_RESERVE) {
			static const uint32 overrides[][2] = {
				{ 0x44442202, 0x44440111 }, // UKRS addons modifies UKRS
				{ 0x6D620402, 0x6D620401 }, // DBSetXL ECS extension modifies DBSetXL
				{ 0x4D656f20, 0x4D656F17 }, // LV4cut modifies LV4
			};
			for (size_t i = 0; i < lengthof(overrides); i++) {
				SetNewGRFOverride(BSWAP32(overrides[i][0]), BSWAP32(overrides[i][1]));
			}
		}

		uint slot = file_index;

		_cur.stage = stage;
		for (GRFConfig *c = _grfconfig; c != NULL; c = c->next) {
			if (c->status == GCS_DISABLED || c->status == GCS_NOT_FOUND) continue;
			if (stage > GLS_INIT && HasBit(c->flags, GCF_INIT_ONLY)) continue;

			Subdirectory subdir = slot == file_index ? BASESET_DIR : NEWGRF_DIR;
			if (!FioCheckFileExists(c->filename, subdir)) {
				DEBUG(grf, 0, "NewGRF file is missing '%s'; disabling", c->filename);
				c->status = GCS_NOT_FOUND;
				continue;
			}

			if (stage == GLS_LABELSCAN) InitNewGRFFile(c);
			LoadNewGRFFile(c, slot++, stage, subdir);
			if (stage == GLS_RESERVE) {
				SetBit(c->flags, GCF_RESERVED);
			} else if (stage == GLS_ACTIVATION) {
				ClrBit(c->flags, GCF_RESERVED);
				assert(GetFileByGRFID(c->ident.grfid) == _cur.grffile);
				ClearTemporaryNewGRFData(_cur.grffile);
				BuildCargoTranslationMap();
				DEBUG(sprite, 2, "LoadNewGRF: Currently %i sprites are loaded", _cur.spriteid);
			} else if (stage == GLS_INIT && HasBit(c->flags, GCF_INIT_ONLY)) {
				/* We're not going to activate this, so free whatever data we allocated */
				ClearTemporaryNewGRFData(_cur.grffile);
			}
		}
	}

	/* Pseudo sprite processing is finished; free temporary stuff */
	_cur.ClearDataForNextFile();

	/* Call any functions that should be run after GRFs have been loaded. */
	AfterLoadGRFs();

	/* Now revert back to the original situation */
	_cur_year     = year;
	_date         = date;
	_date_fract   = date_fract;
	_tick_counter = tick_counter;
	_display_opt  = display_opt;
}

/**
 * Check for grf miscelaneous bits
 * @param bit The bit to check.
 * @return Whether the bit is set.
 */
bool HasGrfMiscBit(GrfMiscBit bit)
{
	return HasBit(_misc_grf_features, bit);
}