summaryrefslogtreecommitdiff
path: root/airport.c
blob: 6f8cb5ceb5c2d3b06d38f98a20bb729c102e78ae (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
/* $Id$ */

#include "stdafx.h"
#include "openttd.h"
#include "debug.h"
#include "map.h"
#include "airport.h"
#include "macros.h"
#include "variables.h"
#include "airport_movement.h"

static AirportFTAClass* CountryAirport;
static AirportFTAClass* CityAirport;
static AirportFTAClass* Oilrig;
static AirportFTAClass* Heliport;
static AirportFTAClass* MetropolitanAirport;
static AirportFTAClass* InternationalAirport;
static AirportFTAClass* CommuterAirport;
static AirportFTAClass* HeliDepot;
static AirportFTAClass* IntercontinentalAirport;
static AirportFTAClass* HeliStation;

static void AirportFTAClass_Constructor(AirportFTAClass *Airport,
	const byte *terminals, const byte *helipads,
	const byte entry_point,  const byte acc_planes,
	const AirportFTAbuildup *FA,
	const TileIndexDiffC *depots, const byte nof_depots,
	uint size_x, uint size_y
);
static void AirportFTAClass_Destructor(AirportFTAClass *Airport);

static uint16 AirportGetNofElements(const AirportFTAbuildup *FA);
static void AirportBuildAutomata(AirportFTAClass *Airport, const AirportFTAbuildup *FA);
static byte AirportTestFTA(const AirportFTAClass *Airport);
#if 0
static void AirportPrintOut(const AirportFTAClass *Airport, const bool full_report);
#endif

void InitializeAirports(void)
{
	// country airport
	CountryAirport = malloc(sizeof(AirportFTAClass));

	AirportFTAClass_Constructor(
		CountryAirport,
		_airport_terminal_country,
		NULL,
		16,
		ALL,
		_airport_fta_country,
		_airport_depots_country,
		lengthof(_airport_depots_country),
		4, 3
	);

	// city airport
	CityAirport = malloc(sizeof(AirportFTAClass));

	AirportFTAClass_Constructor(
		CityAirport,
		_airport_terminal_city,
		NULL,
		19,
		ALL,
		_airport_fta_city,
		_airport_depots_city,
		lengthof(_airport_depots_city),
		6, 6
	);

	// metropolitan airport
	MetropolitanAirport = malloc(sizeof(AirportFTAClass));

	AirportFTAClass_Constructor(
		MetropolitanAirport,
		_airport_terminal_metropolitan,
		NULL,
		20,
		ALL,
		_airport_fta_metropolitan,
		_airport_depots_metropolitan,
		lengthof(_airport_depots_metropolitan),
		6, 6
	);

	// international airport
	InternationalAirport = (AirportFTAClass *)malloc(sizeof(AirportFTAClass));

	AirportFTAClass_Constructor(
		InternationalAirport,
		_airport_terminal_international,
		_airport_helipad_international,
		37,
		ALL,
		_airport_fta_international,
		_airport_depots_international,
		lengthof(_airport_depots_international),
		7, 7
	);

	// intercontintental airport
	IntercontinentalAirport = (AirportFTAClass *)malloc(sizeof(AirportFTAClass));

	AirportFTAClass_Constructor(
		IntercontinentalAirport,
		_airport_terminal_intercontinental,
		_airport_helipad_intercontinental,
		43,
		ALL,
		_airport_fta_intercontinental,
		_airport_depots_intercontinental,
		lengthof(_airport_depots_intercontinental),
		9,11
	);

	// heliport, oilrig
	Heliport = (AirportFTAClass *)malloc(sizeof(AirportFTAClass));

	AirportFTAClass_Constructor(
		Heliport,
		NULL,
		_airport_helipad_heliport_oilrig,
		7,
		HELICOPTERS_ONLY,
		_airport_fta_heliport_oilrig,
		NULL,
		0,
		1, 1
	);

	Oilrig = Heliport;  // exactly the same structure for heliport/oilrig, so share state machine

	// commuter airport
	CommuterAirport = malloc(sizeof(AirportFTAClass));

	AirportFTAClass_Constructor(
		CommuterAirport,
		_airport_terminal_commuter,
		_airport_helipad_commuter,
		22,
		ALL,
		_airport_fta_commuter,
		_airport_depots_commuter,
		lengthof(_airport_depots_commuter),
		5,4
	);

	// helidepot airport
	HeliDepot = malloc(sizeof(AirportFTAClass));

	AirportFTAClass_Constructor(
		HeliDepot,
		NULL,
		_airport_helipad_helidepot,
		4,
		HELICOPTERS_ONLY,
		_airport_fta_helidepot,
		_airport_depots_helidepot,
		lengthof(_airport_depots_helidepot),
		2,2
	);

	// helistation airport
	HeliStation = malloc(sizeof(AirportFTAClass));

	AirportFTAClass_Constructor(
		HeliStation,
		NULL,
		_airport_helipad_helistation,
		25,
		HELICOPTERS_ONLY,
		_airport_fta_helistation,
		_airport_depots_helistation,
		lengthof(_airport_depots_helistation),
		4,2
	);

}

void UnInitializeAirports(void)
{
	AirportFTAClass_Destructor(CountryAirport);
	AirportFTAClass_Destructor(CityAirport);
	AirportFTAClass_Destructor(Heliport);
	AirportFTAClass_Destructor(MetropolitanAirport);
	AirportFTAClass_Destructor(InternationalAirport);
	AirportFTAClass_Destructor(CommuterAirport);
	AirportFTAClass_Destructor(HeliDepot);
	AirportFTAClass_Destructor(IntercontinentalAirport);
	AirportFTAClass_Destructor(HeliStation);
}

static void AirportFTAClass_Constructor(AirportFTAClass *Airport,
																				const byte *terminals, const byte *helipads,
																				const byte entry_point, const byte acc_planes,
																				const AirportFTAbuildup *FA,
																				const TileIndexDiffC *depots, const byte nof_depots,
	uint size_x, uint size_y
)
{
	byte nofterminals, nofhelipads;
	byte nofterminalgroups = 0;
	byte nofhelipadgroups = 0;
	const byte * curr;
	int i;
	nofterminals = nofhelipads = 0;

	Airport->size_x = size_x;
	Airport->size_y = size_y;

	//now we read the number of terminals we have
	if (terminals != NULL) {
		i = terminals[0];
		nofterminalgroups = i;
		curr = terminals;
		while (i-- > 0) {
			curr++;
			assert(*curr != 0);	//we don't want to have an empty group
			nofterminals += *curr;
		}

	}
	Airport->terminals = terminals;

	//read helipads
	if (helipads != NULL) {
		i = helipads[0];
		nofhelipadgroups = i;
		curr = helipads;
		while (i-- > 0) {
			curr++;
			assert(*curr != 0); //no empty groups please
			nofhelipads += *curr;
		}

	}
	Airport->helipads = helipads;

	// if there are more terminals than 6, internal variables have to be changed, so don't allow that
	// same goes for helipads
	if (nofterminals > MAX_TERMINALS) { printf("Currently only maximum of %2d terminals are supported (you wanted %2d)\n", MAX_TERMINALS, nofterminals);}
	if (nofhelipads > MAX_HELIPADS) { printf("Currently only maximum of %2d helipads are supported (you wanted %2d)\n", MAX_HELIPADS, nofhelipads);}
	// terminals/helipads are divided into groups. Groups are computed by dividing the number
	// of terminals by the number of groups. Half in half. If #terminals is uneven, first group
	// will get the less # of terminals

	assert(nofterminals <= MAX_TERMINALS);
	assert(nofhelipads <= MAX_HELIPADS);

	Airport->nofelements = AirportGetNofElements(FA);
	// check
	if (entry_point >= Airport->nofelements) {printf("Entry point (%2d) must be within the airport positions (which is max %2d)\n", entry_point, Airport->nofelements);}
	assert(entry_point < Airport->nofelements);

	Airport->acc_planes = acc_planes;
	Airport->entry_point = entry_point;
	Airport->airport_depots = depots;
	Airport->nof_depots = nof_depots;


	// build the state machine
	AirportBuildAutomata(Airport, FA);
	DEBUG(misc, 1) ("#Elements %2d; #Terminals %2d in %d group(s); #Helipads %2d in %d group(s); Entry Point %d",
		Airport->nofelements, nofterminals, nofterminalgroups, nofhelipads, nofhelipadgroups, Airport->entry_point
	);


	{
		byte ret = AirportTestFTA(Airport);
		if (ret != MAX_ELEMENTS) printf("ERROR with element: %d\n", ret - 1);
		assert(ret == MAX_ELEMENTS);
	}
	// print out full information
	// true  -- full info including heading, block, etc
	// false -- short info, only position and next position
#if 0
	AirportPrintOut(Airport, false);
#endif
}

static void AirportFTAClass_Destructor(AirportFTAClass *Airport)
{
	int i;
	AirportFTA *current, *next;

	for (i = 0; i < Airport->nofelements; i++) {
		current = Airport->layout[i].next_in_chain;
		while (current != NULL) {
			next = current->next_in_chain;
			free(current);
			current = next;
		};
	}
	free(Airport->layout);
	free(Airport);
}

static uint16 AirportGetNofElements(const AirportFTAbuildup *FA)
{
	int i;
	uint16 nofelements = 0;
	int temp = FA[0].position;

	for (i = 0; i < MAX_ELEMENTS; i++) {
		if (temp != FA[i].position) {
			nofelements++;
			temp = FA[i].position;
		}
		if (FA[i].position == MAX_ELEMENTS) break;
	}
	return nofelements;
}

static void AirportBuildAutomata(AirportFTAClass *Airport, const AirportFTAbuildup *FA)
{
	AirportFTA *FAutomata;
	AirportFTA *current;
	uint16 internalcounter, i;
	FAutomata = malloc(sizeof(AirportFTA) * Airport->nofelements);
	Airport->layout = FAutomata;
	internalcounter = 0;

	for (i = 0; i < Airport->nofelements; i++) {
		current = &Airport->layout[i];
		current->position = FA[internalcounter].position;
		current->heading  = FA[internalcounter].heading;
		current->block    = FA[internalcounter].block;
		current->next_position = FA[internalcounter].next_in_chain;

		// outgoing nodes from the same position, create linked list
		while (current->position == FA[internalcounter + 1].position) {
			AirportFTA* newNode = malloc(sizeof(AirportFTA));

			newNode->position = FA[internalcounter + 1].position;
			newNode->heading  = FA[internalcounter + 1].heading;
			newNode->block    = FA[internalcounter + 1].block;
			newNode->next_position = FA[internalcounter + 1].next_in_chain;
			// create link
			current->next_in_chain = newNode;
			current = current->next_in_chain;
			internalcounter++;
		} // while
		current->next_in_chain = NULL;
		internalcounter++;
	}
}

static byte AirportTestFTA(const AirportFTAClass *Airport)
{
	byte position, i, next_element;
	AirportFTA *temp;
	next_element = 0;

	for (i = 0; i < Airport->nofelements; i++) {
		position = Airport->layout[i].position;
		if (position != next_element) return i;
		temp = &Airport->layout[i];

		do {
			if (temp->heading > MAX_HEADINGS && temp->heading != 255) return i;
			if (temp->heading == 0 && temp->next_in_chain != 0) return i;
			if (position != temp->position) return i;
			if (temp->next_position >= Airport->nofelements) return i;
			temp = temp->next_in_chain;
		} while (temp != NULL);
		next_element++;
	}
	return MAX_ELEMENTS;
}

#if 0
static const char* const _airport_heading_strings[] = {
	"TO_ALL",
	"HANGAR",
	"TERM1",
	"TERM2",
	"TERM3",
	"TERM4",
	"TERM5",
	"TERM6",
	"HELIPAD1",
	"HELIPAD2",
	"TAKEOFF",
	"STARTTAKEOFF",
	"ENDTAKEOFF",
	"HELITAKEOFF",
	"FLYING",
	"LANDING",
	"ENDLANDING",
	"HELILANDING",
	"HELIENDLANDING",
	"TERM7",
	"TERM8",
	"HELIPAD3",
	"HELIPAD4",
	"DUMMY"	// extra heading for 255
};


static uint AirportBlockToString(uint32 block)
{
	uint i = 0;
	if (block & 0xffff0000) { block >>= 16; i += 16; }
	if (block & 0x0000ff00) { block >>=  8; i +=  8; }
	if (block & 0x000000f0) { block >>=  4; i +=  4; }
	if (block & 0x0000000c) { block >>=  2; i +=  2; }
	if (block & 0x00000002) { i += 1; }
	return i;
}


static void AirportPrintOut(const AirportFTAClass *Airport, const bool full_report)
{
	byte heading;
	uint i;

	printf("(P = Current Position; NP = Next Position)\n");
	for (i = 0; i < Airport->nofelements; i++) {
		const AirportFTA* temp = &Airport->layout[i];

		if (full_report) {
			heading = (temp->heading == 255) ? MAX_HEADINGS + 1 : temp->heading;
			printf("Pos:%2d NPos:%2d Heading:%15s Block:%2d\n",
				temp->position, temp->next_position,
				_airport_heading_strings[heading], AirportBlockToString(temp->block)
			);
		} else {
			printf("P:%2d NP:%2d", temp->position, temp->next_position);
		}
		while (temp->next_in_chain != NULL) {
			temp = temp->next_in_chain;
			if (full_report) {
				heading = (temp->heading == 255) ? MAX_HEADINGS + 1 : temp->heading;
				printf("Pos:%2d NPos:%2d Heading:%15s Block:%2d\n",
					temp->position, temp->next_position,
					_airport_heading_strings[heading], AirportBlockToString(temp->block)
				);
			} else {
				printf("P:%2d NP:%2d", temp->position, temp->next_position);
			}
		}
		printf("\n");
	}
}
#endif

const AirportFTAClass* GetAirport(const byte airport_type)
{
	//FIXME -- AircraftNextAirportPos_and_Order -> Needs something nicer, don't like this code
	// needs constant change if more airports are added
	switch (airport_type) {
		default:               NOT_REACHED();
		case AT_SMALL:         return CountryAirport;
		case AT_LARGE:         return CityAirport;
		case AT_METROPOLITAN:  return MetropolitanAirport;
		case AT_HELIPORT:      return Heliport;
		case AT_OILRIG:        return Oilrig;
		case AT_INTERNATIONAL: return InternationalAirport;
		case AT_COMMUTER:      return CommuterAirport;
		case AT_HELIDEPOT:     return HeliDepot;
		case AT_INTERCON:      return IntercontinentalAirport;
		case AT_HELISTATION:   return HeliStation;
	}
}

const AirportMovingData *GetAirportMovingData(byte airport_type, byte position)
{
	assert(airport_type < lengthof(_airport_moving_datas));
	assert(position < GetAirport(airport_type)->nofelements);
	return &_airport_moving_datas[airport_type][position];
}

uint32 GetValidAirports(void)
{
	uint32 bytemask = _avail_aircraft; /// sets the first 3 bytes, 0 - 2, @see AdjustAvailAircraft()

	// 1980-1-1 is --> 21915
	// 1990-1-1 is --> 25568
	if (_date >= 21915) SETBIT(bytemask, 3); // metropilitan airport 1980
	if (_date >= 25568) SETBIT(bytemask, 4); // international airport 1990
	if (_date >= 23011) SETBIT(bytemask, 5); // commuter airport 1983
	if (_date >= 20455) SETBIT(bytemask, 6); // helidepot 1976
	if (_date >= 29951) SETBIT(bytemask, 7); // intercontinental airport 2002
	if (_date >= 21915) SETBIT(bytemask, 8); // helistation 1980
	return bytemask;
}