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
|
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta name="Author" content="Marcin Grzegorczyk">
<meta name="Description" content="Structure of OpenTTD (OTTD) landscape arrays">
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<title>OpenTTD Landscape Internals</title>
</head>
<body>
<h3><a name="Landscape">Landscape</a></h3>
<p>Seven attributes (counting "<span style="font-weight: bold;">type_height</span>") hold the informations about a tile.<BR>
These attributes are referred to as
"<span style="font-weight: bold;">type_height</span>",
"<span style="font-weight: bold;">m1</span>", "<span style="font-weight: bold;">m2</span>",
"<span style="font-weight: bold;">m3</span>", "<span style="font-weight: bold;">m4</span>",
"<span style="font-weight: bold;">m5</span>" and "<span style="font-weight: bold;">m6</span>".<BR>
The most important value is the class of a tile, stored in the upper 4 bits
of the <span style="font-weight: bold;">type_height</span> attribute. The lower 4 bits are used to encode the height and
slope data.
</p>
Special Attribute : <span style="font-weight: bold;">m6</span>. There are 4 bits of it that are used accross multiple tile classes<br>
<ul>
<li>
<a name = "bridge_direction">
Bits 7..6 :
<table border="1">
<tr bgcolor="#CCCCCC"><td colspan="2">Presence and direction of bridge above,<br>for tiles that support this.</td></tr>
<tr><td><tt>00</tt> </td><td>no bridge</td></tr>
<tr><td><tt>01</tt> </td><td>Axis X (North-East)</td></tr>
<tr><td><tt>02</tt> </td><td>Axis Y (South-West)</td></tr>
</table>
</li>
<li>
<a name = "tropic_zone">
Bits 1..0 :
<table border="1">
<tr bgcolor="#CCCCCC"><td colspan="2">Only meaningfull in tropic climate.<br>It contains the definition of the available zones</td></tr>
<tr><td><tt>00</tt> </td><td>normal</td></tr>
<tr><td><tt>01</tt> </td><td>desert</td></tr>
<tr><td><tt>02</tt> </td><td>rain forest</td></tr>
</table>
In any other climate, those 2 bits are free of use.
</li>
</ul>
<p>
For a graphical representation of the tile-layout have a look at
<a href="landscape_grid.html">Landscape grid</a> page.
</p>
The <a name="OwnershipInfo">owner of a tile</a>, as frequently associated with attribute m1,
can be either players (human or AI) or "Game entities".
They are identified using:
<table border="1">
<tr><td><tt>00</tt> </td><td align=left>current player</td></tr>
<tr><td><tt>01..08</tt> </td><td align=left>AI or network players</td></tr>
<tr><td><tt>0F</tt> </td><td align=left>a town owns the tile</td></tr>
<tr><td><tt>10</tt> </td><td align=left>nobody owns the tile</td></tr>
<tr><td><tt>11</tt> </td><td align=left>"water" owns the tile</td></tr>
<tr><td><tt>FF</tt> </td><td align=left>spectator in MP or in scenario editor</td></tr>
</table>
<p>OTTD's class-specific periodic tile processing routine is called once every +256 ticks for each tile.</p>
<table border=1 cellpadding=3>
<tr bgcolor="#0099FF">
<th align=left><font color="#FFFFFF">Class</font></th>
<th align=left><font color="#FFFFFF">Meaning & details of encoding</font></th>
</tr>
<tr bgcolor="#CCCCCC">
<td align=left><strong><a name="Class0"><tt> 0 </tt></a></strong></td>
<td align=left> <strong>Ground </strong></td>
</tr>
<tr>
<td valign=top nowrap> </td>
<td>
<ul>
<li>m1: <a href="#OwnershipInfo">owner</a> of the tile (normally <tt>10</tt>)</li>
<li>m2: see fields</li>
<li>m3 bits 3..0: see fields</li>
<li>m4 bits 7..5: type of hedge on the SW border of the tile (1 through 6, or 0=none)</li>
<li>m4 bits 4..2: same as 7..5, but for the SE border</li>
<li>m5 bits 7..5: update counter, incremented on every periodic processing for tile types,
other than <tt>03</tt>, <tt>07</tt>, <tt>0B</tt>, <tt>10</tt> and above.<BR>
on wraparound, the tile is updated (for fields, the type of fields in m3 is increased, for other types the tile type in m5 is increased).<BR>
For snow and desert, these bits are not used, tile is updated on every periodic processing.</li>
<li>m5 bits 4..2: tile type:
<table>
<tr>
<td nowrap valign=top><tt>0</tt> </td>
<td align=left>bare land / grass</td>
</tr>
<tr>
<td nowrap valign=top><tt>1</tt> </td>
<td align=left>rough land (density must be 3)</td>
</tr>
<tr>
<td nowrap valign=top><tt>2</tt> </td>
<td align=left>rocks (density must be 3)</td>
</tr>
<tr>
<td nowrap valign=top><tt>3</tt> </td>
<td align=left>fields (density must be 3)
<ul>
<li>m2: index into the array of industries (farms), INVALID_INDUSTRY (0xFFFF) if farm has been removed</li>
<li>m3 bits 3..0: field type (legal values: 0 through 9)</li>
</ul>
</td>
</tr>
<tr>
<td nowrap valign=top><tt>4</tt> </td>
<td align=left>snow</td>
</tr>
<tr>
<td nowrap valign=top><tt>5</tt> </td>
<td align=left>desert (density must be 1 or 3)</td>
</tr>
</table>
</li>
<li>m5 bits 1..0: density:
<table>
<tr>
<td nowrap valign=top><tt>0</tt> </td>
<td>bare land</td>
<td></td>
<td></td>
<td></td>
<td>1/4 snow</td>
<td></td>
</tr>
<tr>
<td nowrap valign=top><tt>1</tt> </td>
<td>1/3 grass</td>
<td></td>
<td></td>
<td></td>
<td>2/4 snow; </td>
<td>1/2 desert</td>
</tr>
<tr>
<td nowrap valign=top><tt>2</tt> </td>
<td>2/3 grass</td>
<td></td>
<td></td>
<td></td>
<td>3/4 snow</td>
<td></td>
</tr>
<tr>
<td nowrap valign=top><tt>3</tt> </td>
<td>full grass; </td>
<td>rough land; </td>
<td>rocks; </td>
<td>fields; </td>
<td>full snow; </td>
<td>full desert</td>
</tr>
</table>
</li>
<li>m6 bits 7..6 : Possibility of a bridge above, in the <a href="#bridge_direction">direction specified</a></li>
<li>m6 bits 1..0 : <a href="#tropic_zone">Tropic zone definition</a></li>
</ul>
</td>
</tr>
<tr bgcolor="#CCCCCC">
<td valign=top nowrap><strong><a name="Class1"><tt> 1</tt></a></strong></td>
<td><strong>Railway tracks</strong></td>
</tr>
<tr>
<td valign=top nowrap> </td>
<td>
<ul>
<li>m1: <a href="#OwnershipInfo">owner</a> of the tile</li>
<li>m2: see waypoint and signals</li>
<li>m3 bits 7..4: see signals</li>
<li>m3 bits 3..0 = <a name="TrackType">track type</a>:
<table>
<tr>
<td><tt>0</tt> </td>
<td>conventional railway</td>
</tr>
<tr>
<td><tt>1</tt> </td>
<td>electrified railway</td>
</tr>
<tr>
<td><tt>2</tt> </td>
<td>monorail</td>
</tr>
<tr>
<td><tt>3</tt> </td>
<td>maglev</td>
</tr>
</table>
</li>
<li>m4 bits 7..4: see signals</li>
<li>m4 bits 3..0: Ground type (values with fences are not valid for depots and checkpoints)
<table>
<tr>
<td nowrap valign=top><tt>0</tt> </td>
<td align=left>on bare land</td>
</tr>
<tr>
<td nowrap valign=top><tt>1</tt> </td>
<td align=left>on grass, no fences</td>
</tr>
<tr>
<td nowrap valign=top><tt>2</tt> </td>
<td align=left>fence on the NW side</td>
</tr>
<tr>
<td nowrap valign=top><tt>3</tt> </td>
<td align=left>fence on the SE side</td>
</tr>
<tr>
<td nowrap valign=top><tt>4</tt> </td>
<td align=left>fences on the NW and SE sides</td>
</tr>
<tr>
<td nowrap valign=top><tt>5</tt> </td>
<td align=left>fence on the NE side</td>
</tr>
<tr>
<td nowrap valign=top><tt>6</tt> </td>
<td align=left>fence on the SW side</td>
</tr>
<tr>
<td nowrap valign=top><tt>7</tt> </td>
<td align=left>fences on the NE and SW sides</td>
</tr>
<tr>
<td nowrap valign=top><tt>8</tt> </td>
<td align=left>fence on the E side (track in the W corner)</td>
</tr>
<tr>
<td nowrap valign=top><tt>9</tt> </td>
<td align=left>fence on the W side (track in the E corner)</td>
</tr>
<tr>
<td nowrap valign=top><tt>A</tt> </td>
<td align=left>fence on the S side (track in the N corner)</td>
</tr>
<tr>
<td nowrap valign=top><tt>B</tt> </td>
<td align=left>fence on the N side (track in the S corner)</td>
</tr>
<tr>
<td nowrap valign=top><tt>C</tt> </td>
<td align=left>on snow or desert</td>
</tr>
<tr>
<td nowrap valign=top><tt>D</tt> </td>
<td align=left>on grass with fence and shore or water on the free halftile</td>
</tr>
<tr>
<td nowrap valign=top><tt>E</tt> </td>
<td align=left>higher part on foundation with snow, lower without snow</td>
</tr>
</table>
</li>
<li>m5 bit 7 clear: railway track
<ul>
<li>m5 bits 5..0: track layout: bit set = track present:
<table>
<tr>
<td nowrap valign=top>bit 0: </td>
<td align=left>in the X direction</td>
</tr>
<tr>
<td nowrap valign=top>bit 1: </td>
<td align=left>in the Y direction</td>
</tr>
<tr>
<td nowrap valign=top>bit 2: </td>
<td align=left>in the north corner (direction W-E)</td>
</tr>
<tr>
<td nowrap valign=top>bit 3: </td>
<td align=left>in the south corner (direction W-E)</td>
</tr>
<tr>
<td nowrap valign=top>bit 4: </td>
<td align=left>in the west corner (direction N-S)</td>
</tr>
<tr>
<td nowrap valign=top>bit 5: </td>
<td align=left>in the east corner (direction N-S)</td>
</tr>
</table>
</li>
<li>m5 bit 6 set = with signals:<BR>
There are at most 4 signals on a tile. The signals 0..3 belong to the directions:
<table>
<tr>
<td></td>
<td>Track <tt>0</tt> (X) </td>
<td>Track <tt>1</tt> (Y) </td>
<td>Track <tt>2</tt> (north) </td>
<td>Track <tt>3</tt> (south) </td>
<td>Track <tt>4</tt> (west) </td>
<td>Track <tt>5</tt> (east)</td>
</tr>
<tr>
<td align=left>Signal <tt>0</tt> </td>
<td></td>
<td></td>
<td></td>
<td>west</td>
<td></td>
<td>south</td>
</tr>
<tr>
<td align=left>Signal <tt>1</tt> </td>
<td></td>
<td></td>
<td></td>
<td>east</td>
<td></td>
<td>north</td>
</tr>
<tr>
<td align=left>Signal <tt>2</tt> </td>
<td>south-west</td>
<td>north-west</td>
<td>west</td>
<td></td>
<td>south</td>
<td></td>
</tr>
<tr>
<td align=left>Signal <tt>3</tt> </td>
<td>north-east</td>
<td>south-east</td>
<td>east</td>
<td></td>
<td>north</td>
<td></td>
</tr>
</table>
<ul>
<li>m2 bit 7: Signal 0 and 1: set = semaphore signals, clear = light signals</li>
<li>m2 bit 3: Signal 2 and 3: set = semaphore signals, clear = light signals</li>
<li>m2 bits 6..4: type of signal 0 and 1 (same values as m2 bits 2..0)</li>
<li>m2 bits 2..0: type of signal 2 and 3
<table>
<tr>
<td nowrap="nowrap" valign="top"><tt>000</tt>: </td>
<td align="left">normal signals</td>
</tr>
<tr>
<td nowrap="nowrap" valign="top"><tt>001</tt>: </td>
<td align="left">pre-signals</td>
</tr>
<tr>
<td nowrap="nowrap" valign="top"><tt>010</tt>: </td>
<td align="left">exit-signals</td>
</tr>
<tr>
<td nowrap="nowrap" valign="top"><tt>011</tt>: </td>
<td align="left">combo-signals</td>
</tr>
<tr>
<td nowrap="nowrap" valign="top"><tt>100</tt>: </td>
<td align="left">pbs signals</td>
</tr>
<tr>
<td nowrap="nowrap" valign="top"><tt>101</tt>: </td>
<td align="left">no-entry signals</td>
</tr>
</table>
</li>
<li>m3 bits 7..4: bit set = signal 3..0 present</li>
<li>m4 bits 7..4: bit clear = signal 3..0 shows red</li>
</ul>
</li>
<li>m2 bits 8..10: track reserved for pbs
<table>
<tr>
<td><tt>0</tt> </td>
<td>not reserved</td>
</tr>
<tr>
<td><tt>1</tt> </td>
<td>X direction</td>
</tr>
<tr>
<td><tt>2</tt> </td>
<td>Y direction</td>
</tr>
<tr>
<td><tt>3</tt> </td>
<td>north corner (W-E)</td>
</tr>
<tr>
<td><tt>4</tt> </td>
<td>south corner (W-E)</td>
</tr>
<tr>
<td><tt>5</tt> </td>
<td>west corner (N-S)</td>
</tr>
<tr>
<td><tt>6</tt> </td>
<td>east corner (N-S)</td>
</tr>
</table>
</li>
<li>m2 bit 11: opposite track is reserved, too</li>
</ul>
</li>
<li>m5 bit 7 set, bit 6 clear: checkpoint
<ul>
<li>m2: index into the array of waypoints.</li>
<li>m5 bit 0:
<table>
<tr>
<td><tt>0</tt> </td>
<td>in X direction</td>
</tr>
<tr>
<td><tt>1</tt> </td>
<td>in Y direction</td>
</tr>
</table>
</li>
<li>m5 bit 4: pbs reservation state</li>
</ul>
</li>
<li>m5 bit 7 set, bit 6 set: railway depot
<ul>
<li>m5 bits 1..0: exit towards
<table>
<tr>
<td><tt>0</tt> </td>
<td>NE</td>
</tr>
<tr>
<td><tt>1</tt> </td>
<td>SE</td>
</tr>
<tr>
<td><tt>2</tt> </td>
<td>SW</td>
</tr>
<tr>
<td><tt>3</tt> </td>
<td>NW</td>
</tr>
</table>
</li>
<li>m5 bit 4: pbs reservation state</li>
</ul>
</li>
<li>m6 bits 7..6 : Possibility of a bridge above, in the <a href="#bridge_direction">direction specified</a></li>
<li>m6 bits 1..0 : <a href="#tropic_zone">Tropic zone definition</a></li>
</ul>
</td>
</tr>
<tr bgcolor="#CCCCCC">
<td valign=top nowrap><strong><a name="Class2"><tt> 2</tt></a></strong></td>
<td><strong>Roads</strong></td>
</tr>
<tr>
<td valign=top nowrap> </td>
<td>
<ul>
<li>m2: Index into the array of towns (owning town for town roads; closest town otherwise, INVALID_TOWN if not yet calculated)</li>
<li>m3 bit 7 set = on snow or desert</li>
<li>m7 bits 7..5: present road types
<table>
<tr>
<td>bit 0 </td>
<td>normal road</td>
</tr>
<tr>
<td>bit 1 </td>
<td>tram</td>
</tr>
<tr>
<td>bit 2 </td>
<td>reserved</td>
</tr>
</table>
</li>
<li>m5 bits 7 clear: road or level-crossing
<ul>
<li>m3 bits 6..4:
<table>
<tr>
<td><tt>0</tt> </td>
<td>on bare land</td>
</tr>
<tr>
<td><tt>1</tt> </td>
<td>on grass</td>
</tr>
<tr>
<td><tt>2</tt> </td>
<td>paved</td>
</tr>
<tr>
<td><tt>3</tt> </td>
<td>with streetlights</td>
</tr>
<tr>
<td><tt>5</tt> </td>
<td>tree-lined</td>
</tr>
<tr>
<td><tt>6</tt> </td>
<td>on grass with road works</td>
</tr>
<tr>
<td><tt>7</tt> </td>
<td>paved with road works</td>
</tr>
</table>
</li>
<li>m5 bits 3..0: <a href="#OwnershipInfo">owner</a> of road type 1 (tram); OWNER_NONE (<tt>10</tt>) is stored as OWNER_TOWN (<tt>0F</tt>)
<li>m7 bits 4..0: <a href="#OwnershipInfo">owner</a> of road type 2 (reserved)
<li>m5 bit 6 clear: road
<ul>
<li>m1: <a href="#OwnershipInfo">owner</a> of the road type 0 (normal road)</li>
<li>m3 bits 3..0: counter for the roadworks</li>
<li>m4 bits 3..0: road layout road type 0 (normal road): bit set = road piece present:
<table>
<tr>
<td align=left>bit 0: </td>
<td>NW piece</td>
</tr>
<tr>
<td align=left>bit 1: </td>
<td>SW piece</td>
</tr>
<tr>
<td align=left>bit 2: </td>
<td>SE piece</td>
</tr>
<tr>
<td align=left>bit 3: </td>
<td>NE piece</td>
</tr>
</table>
</li>
<li>m4 bits 7..4: road layout road type 1 (tram)</li>
<li>m6 bits 5..2: road layout road type 2 (reserved)</li>
<li>m5 bits 5..4: bits to disallow vehicles to go a specific direction
<table>
<tr>
<td align=left>bit 0: </td>
<td>set = disallow driving in south-west or south-east direction</td>
</tr>
<tr>
<td align=left>bit 1: </td>
<td>set = disallow driving in north-west or north-east direction</td>
</tr>
</table>
</li>
</ul>
</li>
<li>m5 bit 6 set: level crossing
<ul>
<li>m1: <a href="#OwnershipInfo">owner</a> of the railway track</li>
<li>m3 bits 3..0: <a href="#TrackType">railway track type</a></li>
<li>m4 bit 6: direction
<table>
<tr>
<td align=left><tt>0</tt> </td>
<td align=left>road in the X direction, rail in Y</td>
</tr>
<tr>
<td align=left><tt>1</tt> </td>
<td align=left>road in the Y direction, rail in X</td>
</tr>
</table>
</li>
<li>m4 bit 5: set if crossing lights are on</li>
<li>m4 bits 4..0: <a href="#OwnershipInfo">owner</a> of the road type 0 (normal road)</li>
<li>m5 bit 4: pbs reservation state</li>
</ul>
</li>
</ul>
</li>
<li>m5 bit 7 set, bit 6 clear: road depot
<ul>
<li>m1: <a href="#OwnershipInfo">owner</a> of the depot</li>
<li>m5 bits 3..0: exit towards:
<table>
<tr>
<td><tt>0</tt> </td>
<td>NE</td>
</tr>
<tr>
<td><tt>1</tt> </td>
<td>SE</td>
</tr>
<tr>
<td><tt>2</tt> </td>
<td>SW</td>
</tr>
<tr>
<td><tt>3</tt> </td>
<td>NW</td>
</tr>
</table>
</li>
</ul>
</li>
<li>m6 bits 7..6 : Possibility of a bridge above, in the <a href="#bridge_direction">direction specified</a></li>
<li>m6 bits 1..0 : <a href="#tropic_zone">Tropic zone definition</a></li>
</ul>
</td>
</tr>
<tr bgcolor="#CCCCCC">
<td valign=top nowrap><strong><a name="Class3"><tt> 3</tt></a></strong></td>
<td><strong>Town building </strong></td>
</tr>
<tr>
<td valign=top nowrap> </td>
<td>
<ul>
<li>m1 : Random bits <a href="#newhouses">(newhouses)</a> </li>
<li>m2 : index into the array of towns</li>
<li>m3 bit 7 :
<ul>
<li> set : House is complete
<ul>
<li>m5 : year of house construction (relative to 1920); clamped to 0..255 (1920..2175)</li>
</ul>
</li>
<li> clear : House is in construction
<ul>
<li>m5 bits 7..5 : free</li>
<li>m5 bits 4..3 : construction stage</li>
<li>m5 bits 2..0 : construction counter</li>
</ul>
</li>
</ul>
<li>m3 bit 6 : bit 8 of house type (m4), allowing 512 different types.</li>
<li>m3 bit 5 : bit 6 of current animation frame (see m6)</li>
<li>m3 bits 4..0 : triggers activated <a href="#newhouses">(newhouses)</a></li>
<li>m4 : <a href="landscape_externals.html">town building type</a> (with m3[6] bit)</li>
<li>m5 : see m3 bit 7</li>
<li>m6 :
<ul>
<li>If <a href="#newhouses">newhouses</a> is activated
<ul>
<li>bits 7..2 : Current animation frame (bits 5..0); bit 6 in m3</li>
</ul>
</li>
<li>Standard behaviour
<ul>
<li>bits 7..2 : lift position (for houses type 04 and 05)</li>
</ul>
</li>
<li>bits 1..0 : tropic zone specifier</li>
</ul>
</li>
<li>m7 :
<ul>
<li>If <a href="#newhouses">newhouses</a> is activated
<ul>
<li>Periodic processing time remaining</li>
</ul>
</li>
<li>Standard behaviour (only for houses type 04 and 05)
<ul>
<li>bits 7..4 : free</li>
<li>bits 3..1 : lift destination. Values can be 0..6, except 1.<br>
So the building has 6 effective floors. This is due to the fact that the first floor is 2 'normal' floors high.<br>
One 'normal' floor has a height of 6 lift positions.
</li>
<li>bit 0 : Lift has destination when set</li>
</ul>
</li>
</ul>
</li>
</ul>
<small><a name="newhouses">Newhouses is the name englobing a newGRF feature developped by TTDPatch devs (mainly Csaboka).<br>
It allows the replacement of the properties as well as the graphics of houses in the game.<br>
To distinguish between the standard behaviour and the newGRF one, HouseID (m4 + m3[6]) is tested for anything above 110.<br>
110 is the count of standard houses. So above 110 means there is a new definition of at least one house</small>
</td>
</tr>
<tr bgcolor="#CCCCCC">
<td valign=top nowrap><strong><a name="Class4"><tt> 4 </tt></a></strong></td>
<td><strong>Trees </strong></td>
</tr>
<tr>
<td valign=top nowrap> </td>
<td>
<ul>
<li>m1: <a href="#OwnershipInfo">owner</a> (normally <tt>10</tt>)</li>
<li>m2 bits 7..6: ground density
<li>m2 bits 5..4: ground
<table>
<tr>
<td align=left><tt>0</tt> </td>
<td>on grass</td>
</tr>
<tr>
<td align=left><tt>1</tt> </td>
<td>on rough land (density must be 3)</td>
</tr>
<tr>
<td align=left><tt>2</tt> </td>
<td>on snow or desert</td>
</tr>
<tr>
<td align=left><tt>3</tt> </td>
<td>on shore (density must be 3)</td>
</tr>
</table>
</li>
<li>m2 bits 3..0: update counter, incremented on every periodic processing.<br>
on wraparound the growth status is updated (or, if it's <tt>3</tt>, a random action is taken)</li>
<li>m3 bits 7..0: type of trees:
<table>
<tr>
<td nowrap valign=top><tt>00</tt>..<tt>0B</tt> </td>
<td align=left>temperate climate trees</td>
</tr>
<tr>
<td nowrap valign=top><tt>0C</tt>..<tt>13</tt> </td>
<td align=left>sub-arctic climate trees</td>
</tr>
<tr>
<td nowrap valign=top><tt>14</tt>..<tt>1A</tt> </td>
<td align=left>rainforest trees</td>
</tr>
<tr>
<td nowrap valign=top><tt>1B</tt> </td>
<td align=left>cactus plants</td>
</tr>
<tr>
<td nowrap valign=top><tt>1C</tt>..<tt>1F</tt> </td>
<td align=left>sub-tropical climate, non-rainforest, non-desert trees</td>
</tr>
<tr>
<td nowrap valign=top><tt>20</tt>..<tt>28</tt> </td>
<td align=left>toyland trees</td>
</tr>
</table>
<small>Note: the actually displayed set of trees depends on both type and number of trees</small>
</li>
<li>m4 bits 7..5: type of hedge on the SW border of the tile (1 through 6, or 0=none)</li>
<li>m4 bits 4..2: type of hedge on the SE border of the tile (1 through 6, or 0=none)</li>
<li>m5 bits 7..6: number of trees minus one</li>
<li>m5 bits 2..0: growth status:
<table border="0">
<tr>
<td><tt>0</tt>..<tt>2</tt> </td>
<td>one of trees is growing </td>
</tr>
<tr>
<td><tt>3</tt> </td>
<td>all trees are fully grown </td>
</tr>
<tr>
<td><tt>4</tt>..<tt>6</tt> </td>
<td>one of trees is withering </td>
</tr>
</table>
</li>
<li>m6 bits 1..0 : <a href="#tropic_zone">Tropic zone definition</a></li>
</ul>
</td>
</tr>
<tr bgcolor="#CCCCCC">
<td valign=top nowrap><strong><a name="Class5"><tt> 5</tt></a></strong></td>
<td><strong>Station tiles</strong></td>
</tr>
<tr>
<td valign=top nowrap> </td>
<td>
<ul>
<li>m1: <a href="#OwnershipInfo">owner</a> of the station</li>
<li>m2: index into the array of stations</li>
<li>m3 bits 7..4: persistent random data for newstations</li>
<li>m3 bits 3..0: <a href="#TrackType">track type</a> for railway stations</li>
<li>m3 bits 2..0: present road types for road stops</li>
<li>m3 bits 1..0: water class for buoys and water part of docks</li>
<li>m4: custom station id; 0 means standard graphics</li>
<li>m5: graphics index (range from 0..255 for each station type):
<table>
<tr>
<td nowrap valign=top><tt>00</tt>..<tt>07</tt> </td>
<td align=left>railway station
<table>
<tr>
<td><tt>00</tt>..<tt>01</tt> </td>
<td align=left>open platform</td>
</tr>
<tr>
<td><tt>02</tt>..<tt>03</tt> </td>
<td align=left>open platform with station building</td>
</tr>
<tr>
<td><tt>04</tt>....<tt>07</tt> </td>
<td align=left>roofed platform</td>
</tr>
<tr>
<td colspan=2>bit 0: clear = in X direction, set = in Y direction</td>
</tr>
</table>
</td>
</tr>
<tr>
<td nowrap valign=top><tt>00</tt>..<tt>8F</tt></td>
<td align=left>all airports</td>
</tr>
<tr>
<td nowrap valign=top><tt>00</tt>..<tt>05</tt> </td>
<td align=left>road stops:
<table>
<tr>
<td><tt>00</tt> </td>
<td align=left>exit towards NE</td>
</tr>
<tr>
<td><tt>01</tt> </td>
<td align=left>exit towards SE</td>
</tr>
<tr>
<td><tt>02</tt> </td>
<td align=left>exit towards SW</td>
</tr>
<tr>
<td><tt>03</tt> </td>
<td align=left>exit towards NW</td>
</tr>
<tr>
<td><tt>04</tt> </td>
<td align=left>drive through X</td>
</tr>
<tr>
<td><tt>05</tt> </td>
<td align=left>drive through Y</td>
</tr>
</table>
</td>
</tr>
<tr>
<td nowrap valign=top><tt>00</tt>..<tt>05</tt> </td>
<td align=left>ship dock
<table>
<tr>
<td><tt>00</tt> </td>
<td align=left>SW coast part</td>
</tr>
<tr>
<td><tt>01</tt> </td>
<td align=left>NW coast part</td>
</tr>
<tr>
<td><tt>02</tt> </td>
<td align=left>NE coast part</td>
</tr>
<tr>
<td><tt>03</tt> </td>
<td align=left>SE coast part</td>
</tr>
<tr>
<td><tt>04</tt> </td>
<td align=left>X direction water part</td>
</tr>
<tr>
<td><tt>05</tt> </td>
<td align=left>Y direction water part</td>
</tr>
</table>
</td>
</tr>
</table>
</li>
<li>m6 bits 5..3: the station type (rail, airport, truck, bus, oilrig, dock, buoy)</li>
<li>m6 bit 2: 1 when a drive through road stop is built over a town owned road, otherwise 0</li>
<li>m6 bit 2: pbs reservation state for railway stations</li>
<li>m6 bits 1..0 : <a href="#tropic_zone">Tropic zone definition</a></li>
<li>m7: animation frame</li>
</ul>
</td>
</tr>
<tr bgcolor="#CCCCCC">
<td valign=top nowrap><strong><a name="Class6"><tt> 6 </tt></a></strong></td>
<td><strong>Water</strong></td>
</tr>
<tr>
<td valign=top nowrap> </td>
<td>
<ul>
<li>m1: <a href="#OwnershipInfo">owner</a> (for sea, rivers, and coasts normally <tt>11</tt>)</li>
<li>m3 bits 1..0 : Water class (sea, canal or river)
<li>m4: Random data for canal or river tiles</li>
<li>m5: tile type:
<table>
<tr>
<td nowrap valign=top><tt>00</tt> </td>
<td align=left>water, canal or river</td>
</tr>
<tr>
<td nowrap valign=top><tt>01</tt> </td>
<td align=left>coast or riverbank</td>
</tr>
<tr>
<td nowrap valign=top><tt>10</tt>..<tt>1B</tt> </td>
<td align=left>canal locks
<table>
<tr>
<td nowrap valign=top><tt>10</tt> </td>
<td align=left>middle part, (SW-NE direction)</td>
</tr>
<tr>
<td nowrap valign=top><tt>11</tt> </td>
<td align=left>middle part, (NW-SE direction)</td>
</tr>
<tr>
<td nowrap valign=top><tt>12</tt> </td>
<td align=left>middle part, (NE-SW direction)</td>
</tr>
<tr>
<td nowrap valign=top><tt>13</tt> </td>
<td align=left>middle part, (SE-NW direction)</td>
</tr>
<tr>
<td nowrap valign=top><tt>14</tt> </td>
<td align=left>lower part, (SW-NE direction)</td>
</tr>
<tr>
<td nowrap valign=top><tt>15</tt> </td>
<td align=left>lower part, (NW-SE direction)</td>
</tr>
<tr>
<td nowrap valign=top><tt>16</tt> </td>
<td align=left>lower part, (NE-SW direction)</td>
</tr>
<tr>
<td nowrap valign=top><tt>17</tt> </td>
<td align=left>lower part, (SE-NW direction)</td>
</tr>
<tr>
<td nowrap valign=top><tt>18</tt> </td>
<td align=left>upper part, (SW-NE direction)</td>
</tr>
<tr>
<td nowrap valign=top><tt>19</tt> </td>
<td align=left>upper part, (NW-SE direction)</td>
</tr>
<tr>
<td nowrap valign=top><tt>1A</tt> </td>
<td align=left>upper part, (NE-SW direction)</td>
</tr>
<tr>
<td nowrap valign=top><tt>1B</tt> </td>
<td align=left>upper part, (SE-NW direction)</td>
</tr>
</table>
</td>
</tr>
<tr>
<td nowrap valign=top><tt>80</tt>..<tt>83</tt> </td>
<td align=left>ship depots
<table>
<tr>
<td nowrap valign=top><tt>80</tt> </td>
<td align=left>ship depot, NE part (X direction)</td>
</tr>
<tr>
<td nowrap valign=top><tt>81</tt> </td>
<td align=left>ship depot, SW part (X direction)</td>
</tr>
<tr>
<td nowrap valign=top><tt>82</tt> </td>
<td align=left>ship depot, NW part (Y direction)</td>
</tr>
<tr>
<td nowrap valign=top><tt>83</tt> </td>
<td align=left>ship depot, SE part (Y direction)</td>
</tr>
</table>
</td>
</tr>
</table>
</li>
<li>m6 bits 7..6 : Possibility of a bridge above, in the <a href="#bridge_direction">direction specified</a></li>
<li>m6 bits 1..0 : <a href="#tropic_zone">Tropic zone definition</a></li>
</ul>
</td>
</tr>
<tr bgcolor="#CCCCCC">
<td valign=top nowrap><strong><a name="Class7"><tt> 7 </tt></a></strong></td>
<td><strong>Void </strong></td>
</tr>
<tr>
<td valign=top nowrap> </td>
<td>Tiles of this class form an invisible, one tile wide border at the south (bottom) edges of the map,<br>
so as to protect several algorithms from the consequences of a wraparound at the edges.
</td>
</tr>
<tr bgcolor="#CCCCCC">
<td valign=top nowrap><strong><a name="Class8"><tt> 8</tt></a></strong></td>
<td><strong>Industry tile </strong></td>
</tr>
<tr>
<td valign=top nowrap> </td>
<td>
<ul>
<li>m1 bit 7: clear = under construction
<ul>
<li>m1 bits 6..5 : Water class (sea, canal, river or land)
<li>m1 bits 3..2: construction counter, for buildings under construction incremented on every periodic tile processing</li>
<li>m1 bits 1..0: stage of construction (<tt>3</tt> = completed), incremented when the construction counter wraps around<br>
the meaning is different for some animated tiles which are never under construction (types <tt>01</tt>, <tt>1E</tt>..<tt>20</tt>, <tt>30</tt>, <tt>58</tt>; see above)</li>
</ul>
</li>
<li>m2: index into the array of industries</li>
<li>m3: animation state</li>
<li>m4: animation loop</li>
<li>m5: type (plus m6 bit 2):<br>
<small>(note: this is not the same as the industry type, which is stored in the array of industries)</small>
<table>
<tr>
<td nowrap valign=top><tt>00</tt>..<tt>06</tt> </td>
<td align=left>coal mine
<table>
<tr>
<td nowrap valign=top><tt>00</tt> </td>
<td align=left>wheel tower when not animated</td>
</tr>
<tr>
<td nowrap valign=top><tt>01</tt> </td>
<td align=left>wheel tower when animated<br>
animation state in m3 bits 5..0; m3 bit 6 set = sound already generated</td>
</tr>
</table>
</td>
</tr>
<tr>
<td nowrap valign=top><tt>07</tt>..<tt>0A</tt> </td>
<td align=left>power station
<table>
<tr>
<td nowrap valign=top><tt>08</tt> </td>
<td align=left>chimney</td>
</tr>
<tr>
<td nowrap valign=top><tt>0A</tt> </td>
<td align=left>transformer; animation progress in m3(valid range <tt>0</tt>..<tt>7</tt>)</td>
</tr>
</table>
</td>
</tr>
<tr>
<td nowrap valign=top><tt>0B</tt>..<tt>0F</tt> </td>
<td align=left>sawmill</td>
</tr>
<tr>
<td nowrap valign=top><tt>10</tt>..<tt>11</tt> </td>
<td align=left>forest
<table>
<tr>
<td nowrap valign=top><tt>11</tt> </td>
<td align=left>trees cut down</td>
</tr>
</table>
</td>
</tr>
<tr>
<td nowrap valign=top><tt>12</tt>..<tt>17</tt> </td>
<td align=left>oil refinery</td>
</tr>
<tr>
<td nowrap valign=top><tt>18</tt>..<tt>1C</tt> </td>
<td align=left>oil rig</td>
</tr>
<tr>
<td nowrap valign=top><tt>1D</tt>..<tt>20</tt> </td>
<td align=left>oil wells
<table>
<tr>
<td nowrap valign=top><tt>1D</tt> </td>
<td align=left>not animated</td>
</tr>
<tr>
<td nowrap valign=top><tt>1E</tt>..<tt>20</tt> </td>
<td align=left>various stages of animation; progress of animation in m3</td>
</tr>
</table>
</td>
</tr>
<tr>
<td nowrap valign=top><tt>21</tt>..<tt>26</tt> </td>
<td align=left>farm</td>
</tr>
<tr>
<td nowrap valign=top><tt>27</tt>..<tt>2A</tt> </td>
<td align=left>factory (temperate climate)</td>
</tr>
<tr>
<td nowrap valign=top><tt>2B</tt>..<tt>2E</tt> </td>
<td align=left>printing works</td>
</tr>
<tr>
<td nowrap valign=top><tt>2F</tt>..<tt>33</tt> </td>
<td align=left>copper ore mine
<table>
<tr>
<td nowrap valign=top><tt>2F</tt> </td>
<td align=left>wheel tower when not animated</td>
</tr>
<tr>
<td nowrap valign=top><tt>30</tt> </td>
<td align=left>wheel tower when animated; animation state in m3 bits 5..0; m3 bit 6 set = sound already generated</td>
</tr>
<tr>
<td nowrap valign=top><tt>31</tt> </td>
<td align=left>chimney</td>
</tr>
</table>
</td>
</tr>
<tr>
<td nowrap valign=top><tt>34</tt>..<tt>39</tt> </td>
<td align=left>steel mill</td>
</tr>
<tr>
<td nowrap valign=top><tt>3A</tt>..<tt>3B</tt> </td>
<td align=left>bank (temperate climate)</td>
</tr>
<tr>
<td nowrap valign=top><tt>3C</tt>..<tt>3F</tt> </td>
<td align=left>food processing plant</td>
</tr>
<tr>
<td nowrap valign=top><tt>40</tt>..<tt>47</tt> </td>
<td align=left>paper mill</td>
</tr>
<tr>
<td nowrap valign=top><tt>48</tt>..<tt>58</tt> </td>
<td align=left>gold mine
<table>
<tr>
<td nowrap valign=top><tt>4F</tt> </td>
<td align=left>wheel tower when not animated</td>
</tr>
<tr>
<td nowrap valign=top><tt>58</tt> </td>
<td align=left>wheel tower when animated; animation state in m3 bits 5..0; m3 bit 6 set = sound already generated</td>
</tr>
</table></td>
</tr>
<tr>
<td nowrap valign=top><tt>59</tt>..<tt>5A</tt> </td>
<td align=left>bank (sub-arctic or sub-tropical climate)</td>
</tr>
<tr>
<td nowrap valign=top><tt>5B</tt>..<tt>63</tt> </td>
<td align=left>diamond mine</td>
</tr>
<tr>
<td nowrap valign=top><tt>64</tt>..<tt>73</tt> </td>
<td align=left>iron ore mine</td>
</tr>
<tr>
<td nowrap valign=top><tt>74</tt></td>
<td align=left>fruit plantation</td>
</tr>
<tr>
<td nowrap valign=top><tt>75</tt></td>
<td align=left>rubber plantation</td>
</tr>
<tr>
<td nowrap valign=top><tt>76</tt>..<tt>77</tt> </td>
<td align=left>water supply</td>
</tr>
<tr>
<td nowrap valign=top><tt>78</tt></td>
<td align=left>water tower</td>
</tr>
<tr>
<td nowrap valign=top><tt>79</tt>..<tt>7C</tt> </td>
<td align=left>factory (sub-tropical climate)</td>
</tr>
<tr>
<td nowrap valign=top><tt>7D</tt>..<tt>80</tt> </td>
<td align=left>lumber mill</td>
</tr>
<tr>
<td nowrap valign=top><tt>81</tt>..<tt>82</tt> </td>
<td align=left>candyfloss forest
<table>
<tr>
<td nowrap valign=top><tt>82</tt> </td>
<td align=left>candyfloss 'trees' cut down</td>
</tr>
</table>
</td>
</tr>
<tr>
<td nowrap valign=top><tt>83</tt>..<tt>86</tt> </td>
<td align=left>sweet factory</td>
</tr>
<tr>
<td nowrap valign=top><tt>87</tt>..<tt>88</tt> </td>
<td align=left>battery farm
<table>
<tr>
<td nowrap valign=top><tt>88</tt> </td>
<td align=left>batteries 'reaped'</td>
</tr>
</table>
</td>
</tr>
<tr>
<td nowrap valign=top><tt>89</tt></td>
<td align=left>cola wells</td>
</tr>
<tr>
<td nowrap valign=top><tt>8A</tt>..<tt>8D</tt> </td>
<td align=left>toy shop</td>
</tr>
<tr>
<td nowrap valign=top><tt>8E</tt>..<tt>93</tt> </td>
<td align=left>toy factory
<table>
<tr>
<td nowrap valign=top><tt>8F</tt> </td>
<td align=left>Animated part; animation state in m3 (valid range <tt>00</tt>..<tt>31</tt>)<br>
Tile animation is started (m4 zeroed) on the periodic processing.<br>
While the animation is in progress, m4 holds the number
of animation cycles that have already taken place.<br>
when this number reaches 8 the animation is stopped.</td>
</tr>
</table>
</td>
</tr>
<tr>
<td nowrap valign=top><tt>94</tt>..<tt>9B</tt> </td>
<td align=left>plastic fountains (various stages of cyclic animation)</td>
</tr>
<tr>
<td nowrap valign=top><tt>9C</tt>..<tt>9F</tt> </td>
<td align=left>fizzy drink factory</td>
</tr>
<tr>
<td nowrap valign=top><tt>A0</tt>..<tt>A3</tt> </td>
<td align=left>bubble generator
<table>
<tr>
<td nowrap valign=top><tt>A1</tt> </td>
<td align=left>generators</td>
</tr>
<tr>
<td nowrap valign=top><tt>A2</tt> </td>
<td align=left>bubble capture facility; animation state in m3 (valid range <tt>00</tt>..<tt>27</tt>)</td>
</tr>
</table>
</td>
</tr>
<tr>
<td nowrap valign=top><tt>A4</tt>..<tt>A6</tt> </td>
<td align=left>toffee quarry
<table>
<tr>
<td nowrap valign=top><tt>A5</tt> </td>
<td align=left>animated part; animation state in m3 (valid range <tt>00</tt>..<tt>45</tt>)</td>
</tr>
</table>
</td>
</tr>
<tr>
<td nowrap valign=top><tt>A7</tt>..<tt>AE</tt> </td>
<td align=left>sugar mine
<table>
<tr>
<td nowrap valign=top><tt>AE</tt> </td>
<td align=left>animated part; animation state in m3 (valid range <tt>00</tt>..<tt>5F</tt>)</td>
</tr>
</table>
</td>
</tr>
<tr>
<td nowrap valign=top><tt>AF</tt>..<tt>1FF</tt> </td>
<td align=left>NewGRF industries industry</td>
</tr>
</table>
</li>
<li>m6 bits 5..3: random triggers (NewGRF)</li>
<li>m6 bit 2: bit 8 of type (see m5)</li>
<li>m6 bits 1..0 : <a href="#tropic_zone">Tropic zone definition</a></li>
<li>m7: random bits (NewGRF)</li>
</ul>
</td>
</tr>
<tr bgcolor="#CCCCCC">
<td valign=top nowrap><strong><a name="Class9"><tt> 9</tt></a></strong></td>
<td><strong>Tunnel / bridge</strong></td>
</tr>
<tr>
<td valign=top nowrap> </td>
<td>
<ul>
<li>m1: <a href="#OwnershipInfo">owner</a></li>
<li>m2 bits 7..4: see bridge ramp</li>
<li>m3 bits 3..0: <a href="#TrackType">track type</a> for railway</li>
<li>m3 bits 2..0: present road types for road</li>
<li>m4 bit 7 set = on snow or desert</li>
<li>m5 bit 4: pbs reservation state for railway</li>
<li>m5 bits 7 clear: tunnel entrance/exit</li>
<li>m5 bit 7 set: bridge ramp
<ul>
<li>m2 bits 7..4: <a name="BridgeType">bridge type</a>:
<table>
<tr>
<th align=left>Type </th>
<th align=left>Max. speed (mph) </th>
<th align=left>Description</th>
</tr>
<tr>
<td nowrap valign=top><tt>0</tt> </td>
<td align=center>20</td>
<td align=left>wooden</td>
</tr>
<tr>
<td nowrap valign=top><tt>1</tt> </td>
<td align=center>30</td>
<td align=left>concrete</td>
</tr>
<tr>
<td nowrap valign=top><tt>2</tt> </td>
<td align=center>40</td>
<td align=left>girder, steel</td>
</tr>
<tr>
<td nowrap valign=top><tt>3</tt> </td>
<td align=center>50</td>
<td align=left>suspension, concrete</td>
</tr>
<tr>
<td nowrap valign=top><tt>4</tt> </td>
<td align=center>60</td>
<td align=left>suspension, steel</td>
</tr>
<tr>
<td nowrap valign=top><tt>5</tt> </td>
<td align=center>70</td>
<td align=left>suspension, steel</td>
</tr>
<tr>
<td nowrap valign=top><tt>6</tt> </td>
<td align=center>100</td>
<td align=left>cantilever, steel</td>
</tr>
<tr>
<td nowrap valign=top><tt>7</tt> </td>
<td align=center>130</td>
<td align=left>cantilever, steel</td>
</tr>
<tr>
<td nowrap valign=top><tt>8</tt> </td>
<td align=center>150</td>
<td align=left>cantilever, steel</td>
</tr>
<tr>
<td nowrap valign=top><tt>9</tt> </td>
<td align=center>160</td>
<td align=left>girder, steel</td>
</tr>
<tr>
<td nowrap valign=top><tt>A</tt> </td>
<td align=center>200</td>
<td align=left>tubular, steel</td>
</tr>
<tr>
<td nowrap valign=top><tt>B</tt> </td>
<td align=center>320</td>
<td align=left>tubular, steel</td>
</tr>
<tr>
<td nowrap valign=top><tt>C</tt> </td>
<td align=center>380</td>
<td align=left>tubular, silicon</td>
</tr>
</table>
</li>
</ul>
</li>
<li>m5 bits 3..2: transport type
<table>
<tr>
<td><tt>0</tt> </td>
<td>railway</td>
</tr>
<tr>
<td><tt>1</tt> </td>
<td>road</td>
</tr>
<tr>
<td><tt>2</tt> </td>
<td>water</td>
</tr>
</li>
<li>m5 bits 1..0: direction onto the bridge / out of the tunnel
<table>
<tr>
<td><tt>0</tt> </td>
<td>NE</td>
</tr>
<tr>
<td><tt>1</tt> </td>
<td>SE</td>
</tr>
<tr>
<td><tt>2</tt> </td>
<td>SW</td>
</tr>
<tr>
<td><tt>3</tt> </td>
<td>NW</td>
</tr>
</table>
</li>
<li>m6 bits 7..6 : Possibility of a bridge above, in the <a href="#bridge_direction">direction specified</a></li>
<li>m6 bits 1..0 : <a href="#tropic_zone">Tropic zone definition</a></li>
</ul>
</td>
</tr>
<tr bgcolor="#CCCCCC">
<td valign=top nowrap><strong><a name="ClassA"><tt> A</tt></a></strong></td>
<td><strong><tt>Unmovables</tt></strong></td>
</tr>
<tr>
<td valign=top nowrap> </td>
<td>
<ul>
<li>m1: <a href="#OwnershipInfo">owner</a> of the object (for lighthouses and transmitters normally <tt>10</tt>)</li>
<li>m2: see company statue
<li>m5: tile type:
<table>
<tr>
<td nowrap valign=top><tt>00</tt> </td>
<td align=left>transmitter</td>
</tr>
<tr>
<td nowrap valign=top><tt>01</tt> </td>
<td align=left>lighthouse</td>
</tr>
<tr>
<td nowrap valign=top><tt>02</tt> </td>
<td align=left>company statue
<ul>
<li>m2: TownID on which the statue is built in</li>
</ul>
</td>
</tr>
<tr>
<td nowrap valign=top><tt>03</tt> </td>
<td align=left>company-owned land</td>
</tr>
<tr>
<td nowrap valign=top><tt>80</tt>..<tt>93</tt> </td>
<td align=left>company headquarters (5 sets of 4 tiles each, updated quarterly depending on the company performance)</td>
</tr>
</table>
</li>
<li>m6 bits 7..6 : Possibility of a bridge above, in the <a href="#bridge_direction">direction specified</a></li>
<li>m6 bits 1..0 : <a href="#tropic_zone">Tropic zone definition</a></li>
</ul>
</td>
</tr>
<tr>
<td colspan=2>Classes <tt>B</tt> through <tt>F</tt> are reserved. The presence
of a tile in one of the reserved classes will crash OTTD.</td>
</tr>
</table>
<hr>
Original Copyright © 2003 by Marcin Grzegorczyk for TTDLX.<br>
Transport Tycoon and Transport Tycoon Deluxe are Copyright © by Chris Sawyer.<br>
All the other trademarks are the property of their respective owners.<br>
</body>
</html>
|
