OpenTTD Source  20241120-master-g6d3adc6169
disaster_vehicle.cpp
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1 /*
2  * This file is part of OpenTTD.
3  * 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.
4  * 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.
5  * 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/>.
6  */
7 
26 #include "stdafx.h"
27 
28 #include "aircraft.h"
29 #include "disaster_vehicle.h"
30 #include "industry.h"
31 #include "station_base.h"
32 #include "command_func.h"
33 #include "news_func.h"
34 #include "town.h"
35 #include "company_func.h"
36 #include "strings_func.h"
37 #include "viewport_func.h"
38 #include "vehicle_func.h"
39 #include "sound_func.h"
40 #include "effectvehicle_func.h"
41 #include "roadveh.h"
42 #include "train.h"
43 #include "ai/ai.hpp"
44 #include "game/game.hpp"
45 #include "company_base.h"
46 #include "core/random_func.hpp"
47 #include "core/backup_type.hpp"
48 #include "landscape_cmd.h"
49 #include "timer/timer.h"
51 
52 #include "table/strings.h"
53 
54 #include "safeguards.h"
55 
57 uint16_t _disaster_delay;
58 
59 static void DisasterClearSquare(TileIndex tile)
60 {
61  if (EnsureNoVehicleOnGround(tile).Failed()) return;
62 
63  switch (GetTileType(tile)) {
64  case MP_RAILWAY:
65  if (Company::IsHumanID(GetTileOwner(tile)) && !IsRailDepot(tile)) {
68  cur_company.Restore();
69 
70  /* update signals in buffer */
72  }
73  break;
74 
75  case MP_HOUSE: {
78  cur_company.Restore();
79  break;
80  }
81 
82  case MP_TREES:
83  case MP_CLEAR:
84  DoClearSquare(tile);
85  break;
86 
87  default:
88  break;
89  }
90 }
91 
92 static const SpriteID _disaster_images_1[] = {SPR_BLIMP, SPR_BLIMP, SPR_BLIMP, SPR_BLIMP, SPR_BLIMP, SPR_BLIMP, SPR_BLIMP, SPR_BLIMP};
93 static const SpriteID _disaster_images_2[] = {SPR_UFO_SMALL_SCOUT, SPR_UFO_SMALL_SCOUT, SPR_UFO_SMALL_SCOUT, SPR_UFO_SMALL_SCOUT, SPR_UFO_SMALL_SCOUT, SPR_UFO_SMALL_SCOUT, SPR_UFO_SMALL_SCOUT, SPR_UFO_SMALL_SCOUT};
94 static const SpriteID _disaster_images_3[] = {SPR_F_15, SPR_F_15, SPR_F_15, SPR_F_15, SPR_F_15, SPR_F_15, SPR_F_15, SPR_F_15};
95 static const SpriteID _disaster_images_4[] = {SPR_SUB_SMALL_NE, SPR_SUB_SMALL_NE, SPR_SUB_SMALL_SE, SPR_SUB_SMALL_SE, SPR_SUB_SMALL_SW, SPR_SUB_SMALL_SW, SPR_SUB_SMALL_NW, SPR_SUB_SMALL_NW};
96 static const SpriteID _disaster_images_5[] = {SPR_SUB_LARGE_NE, SPR_SUB_LARGE_NE, SPR_SUB_LARGE_SE, SPR_SUB_LARGE_SE, SPR_SUB_LARGE_SW, SPR_SUB_LARGE_SW, SPR_SUB_LARGE_NW, SPR_SUB_LARGE_NW};
97 static const SpriteID _disaster_images_6[] = {SPR_UFO_HARVESTER, SPR_UFO_HARVESTER, SPR_UFO_HARVESTER, SPR_UFO_HARVESTER, SPR_UFO_HARVESTER, SPR_UFO_HARVESTER, SPR_UFO_HARVESTER, SPR_UFO_HARVESTER};
98 static const SpriteID _disaster_images_7[] = {SPR_XCOM_SKYRANGER, SPR_XCOM_SKYRANGER, SPR_XCOM_SKYRANGER, SPR_XCOM_SKYRANGER, SPR_XCOM_SKYRANGER, SPR_XCOM_SKYRANGER, SPR_XCOM_SKYRANGER, SPR_XCOM_SKYRANGER};
99 static const SpriteID _disaster_images_8[] = {SPR_AH_64A, SPR_AH_64A, SPR_AH_64A, SPR_AH_64A, SPR_AH_64A, SPR_AH_64A, SPR_AH_64A, SPR_AH_64A};
100 static const SpriteID _disaster_images_9[] = {SPR_ROTOR_MOVING_1, SPR_ROTOR_MOVING_1, SPR_ROTOR_MOVING_1, SPR_ROTOR_MOVING_1, SPR_ROTOR_MOVING_1, SPR_ROTOR_MOVING_1, SPR_ROTOR_MOVING_1, SPR_ROTOR_MOVING_1};
101 
102 static const SpriteID * const _disaster_images[] = {
103  _disaster_images_1, _disaster_images_1,
104  _disaster_images_2, _disaster_images_2,
105  _disaster_images_3, _disaster_images_3,
106  _disaster_images_8, _disaster_images_8, _disaster_images_9,
107  _disaster_images_6, _disaster_images_6,
108  _disaster_images_7, _disaster_images_7,
109  _disaster_images_4, _disaster_images_5,
110 };
111 
112 void DisasterVehicle::UpdateImage()
113 {
114  SpriteID img = this->image_override;
115  if (img == 0) img = _disaster_images[this->subtype][this->direction];
116  this->sprite_cache.sprite_seq.Set(img);
117 }
118 
127 DisasterVehicle::DisasterVehicle(int x, int y, Direction direction, DisasterSubType subtype, VehicleID big_ufo_destroyer_target) :
128  SpecializedVehicleBase(), big_ufo_destroyer_target(big_ufo_destroyer_target)
129 {
130  this->vehstatus = VS_UNCLICKABLE;
131 
132  this->x_pos = x;
133  this->y_pos = y;
134  switch (subtype) {
135  case ST_ZEPPELINER:
136  case ST_SMALL_UFO:
137  case ST_AIRPLANE:
138  case ST_HELICOPTER:
139  case ST_BIG_UFO:
141  GetAircraftFlightLevelBounds(this, &this->z_pos, nullptr);
142  break;
143 
145  GetAircraftFlightLevelBounds(this, &this->z_pos, nullptr);
146  this->z_pos += ROTOR_Z_OFFSET;
147  break;
148 
149  case ST_SMALL_SUBMARINE:
150  case ST_BIG_SUBMARINE:
151  this->z_pos = 0;
152  break;
153 
155  case ST_SMALL_UFO_SHADOW:
156  case ST_AIRPLANE_SHADOW:
158  case ST_BIG_UFO_SHADOW:
160  this->z_pos = 0;
161  this->vehstatus |= VS_SHADOW;
162  break;
163  }
164 
165  this->direction = direction;
166  this->tile = TileVirtXY(x, y);
167  this->subtype = subtype;
168  this->UpdateDeltaXY();
169  this->owner = OWNER_NONE;
170  this->image_override = 0;
171  this->state = 0;
172 
173  this->UpdateImage();
175 }
176 
183 void DisasterVehicle::UpdatePosition(int x, int y, int z)
184 {
185  this->x_pos = x;
186  this->y_pos = y;
187  this->z_pos = z;
188  this->tile = TileVirtXY(x, y);
189 
190  this->UpdateImage();
192 
193  DisasterVehicle *u = this->Next();
194  if (u != nullptr) {
195  int safe_x = Clamp(x, 0, Map::MaxX() * TILE_SIZE);
196  int safe_y = Clamp(y - 1, 0, Map::MaxY() * TILE_SIZE);
197 
198  u->x_pos = x;
199  u->y_pos = y - 1 - (std::max(z - GetSlopePixelZ(safe_x, safe_y), 0) >> 3);
200  safe_y = Clamp(u->y_pos, 0, Map::MaxY() * TILE_SIZE);
201  u->z_pos = GetSlopePixelZ(safe_x, safe_y);
202  u->direction = this->direction;
203 
204  u->UpdateImage();
206 
207  if ((u = u->Next()) != nullptr) {
208  u->x_pos = x;
209  u->y_pos = y;
210  u->z_pos = z + ROTOR_Z_OFFSET;
212  }
213  }
214 }
215 
225 {
226  v->tick_counter++;
227 
228  if (v->state < 2) {
229  if (HasBit(v->tick_counter, 0)) return true;
230 
232 
233  v->UpdatePosition(gp.x, gp.y, GetAircraftFlightLevel(v));
234 
235  if (v->state == 1) {
236  if (++v->age == 38) {
237  v->state = 2;
238  v->age = 0;
239  }
240 
241  if (GB(v->tick_counter, 0, 3) == 0) CreateEffectVehicleRel(v, 0, -17, 2, EV_CRASH_SMOKE);
242 
243  } else if (v->state == 0) {
244  if (IsValidTile(v->tile) && IsAirportTile(v->tile)) {
245  v->state = 1;
246  v->age = 0;
247 
249  AddTileNewsItem(STR_NEWS_DISASTER_ZEPPELIN, NT_ACCIDENT, v->tile);
250  AI::NewEvent(GetTileOwner(v->tile), new ScriptEventDisasterZeppelinerCrashed(GetStationIndex(v->tile)));
251  }
252  }
253 
254  if (v->y_pos >= (int)((Map::SizeY() + 9) * TILE_SIZE - 1)) {
255  delete v;
256  return false;
257  }
258 
259  return true;
260  }
261 
262  if (v->state > 2) {
263  if (++v->age <= 13320) return true;
264 
265  if (IsValidTile(v->tile) && IsAirportTile(v->tile)) {
266  Station *st = Station::GetByTile(v->tile);
267  CLRBITS(st->airport.flags, RUNWAY_IN_block);
268  AI::NewEvent(GetTileOwner(v->tile), new ScriptEventDisasterZeppelinerCleared(st->index));
269  }
270 
271  v->UpdatePosition(v->x_pos, v->y_pos, GetAircraftFlightLevel(v));
272  delete v;
273  return false;
274  }
275 
276  int x = v->x_pos;
277  int y = v->y_pos;
278  int z = GetSlopePixelZ(x, y);
279  if (z < v->z_pos) z = v->z_pos - 1;
280  v->UpdatePosition(x, y, z);
281 
282  if (++v->age == 1) {
284  if (_settings_client.sound.disaster) SndPlayVehicleFx(SND_12_EXPLOSION, v);
285  v->image_override = SPR_BLIMP_CRASHING;
286  } else if (v->age == 70) {
287  v->image_override = SPR_BLIMP_CRASHED;
288  } else if (v->age <= 300) {
289  if (GB(v->tick_counter, 0, 3) == 0) {
290  uint32_t r = Random();
291 
293  GB(r, 0, 4) - 7,
294  GB(r, 4, 4) - 7,
295  GB(r, 8, 3) + 5,
297  }
298  } else if (v->age == 350) {
299  v->state = 3;
300  v->age = 0;
301  }
302 
303  if (IsValidTile(v->tile) && IsAirportTile(v->tile)) {
304  SETBITS(Station::GetByTile(v->tile)->airport.flags, RUNWAY_IN_block);
305  }
306 
307  return true;
308 }
309 
317 {
318  v->image_override = (HasBit(++v->tick_counter, 3)) ? SPR_UFO_SMALL_SCOUT_DARKER : SPR_UFO_SMALL_SCOUT;
319 
320  if (v->state == 0) {
321  /* Fly around randomly */
322  int x = TileX(v->dest_tile) * TILE_SIZE;
323  int y = TileY(v->dest_tile) * TILE_SIZE;
324  if (Delta(x, v->x_pos) + Delta(y, v->y_pos) >= (int)TILE_SIZE) {
325  v->direction = GetDirectionTowards(v, x, y);
327  v->UpdatePosition(gp.x, gp.y, GetAircraftFlightLevel(v));
328  return true;
329  }
330  if (++v->age < 6) {
331  v->dest_tile = RandomTile();
332  return true;
333  }
334  v->state = 1;
335 
336  uint n = 0; // Total number of targetable road vehicles.
337  for (const Company *c : Company::Iterate()) {
338  n += c->group_all[VEH_ROAD].num_vehicle;
339  }
340 
341  if (n == 0) {
342  /* If there are no targetable road vehicles, destroy the UFO. */
343  delete v;
344  return false;
345  }
346 
347  n = RandomRange(n); // Choose one of them.
348  for (RoadVehicle *u : RoadVehicle::Iterate()) {
349  /* Find (n+1)-th road vehicle. */
350  if (u->IsFrontEngine() && (n-- == 0)) {
351  if (u->crashed_ctr != 0 || u->disaster_vehicle != INVALID_VEHICLE) {
352  /* Targetted vehicle is crashed or already a target, destroy the UFO. */
353  delete v;
354  return false;
355  }
356  /* Target it. */
357  v->dest_tile = u->index;
358  v->age = 0;
359  u->disaster_vehicle = v->index;
360  break;
361  }
362  }
363 
364  return true;
365  } else {
366  /* Target a vehicle */
367  RoadVehicle *u = RoadVehicle::Get(v->dest_tile.base());
368  assert(u != nullptr && u->type == VEH_ROAD && u->IsFrontEngine());
369 
370  uint dist = Delta(v->x_pos, u->x_pos) + Delta(v->y_pos, u->y_pos);
371 
372  if (dist < TILE_SIZE && !(u->vehstatus & VS_HIDDEN) && u->breakdown_ctr == 0) {
373  u->breakdown_ctr = 3;
374  u->breakdown_delay = 140;
375  }
376 
377  v->direction = GetDirectionTowards(v, u->x_pos, u->y_pos);
379 
380  int z = v->z_pos;
381  if (dist <= TILE_SIZE && z > u->z_pos) z--;
382  v->UpdatePosition(gp.x, gp.y, z);
383 
384  if (z <= u->z_pos && (u->vehstatus & VS_HIDDEN) == 0) {
385  v->age++;
386  if (u->crashed_ctr == 0) {
387  uint victims = u->Crash();
389 
390  AddTileNewsItem(STR_NEWS_DISASTER_SMALL_UFO, NT_ACCIDENT, u->tile);
391 
392  AI::NewEvent(u->owner, new ScriptEventVehicleCrashed(u->index, u->tile, ScriptEventVehicleCrashed::CRASH_RV_UFO, victims));
393  Game::NewEvent(new ScriptEventVehicleCrashed(u->index, u->tile, ScriptEventVehicleCrashed::CRASH_RV_UFO, victims));
394  }
395  }
396 
397  /* Destroy? */
398  if (v->age > 50) {
400  if (_settings_client.sound.disaster) SndPlayVehicleFx(SND_12_EXPLOSION, v);
401  delete v;
402  return false;
403  }
404  }
405 
406  return true;
407 }
408 
409 static void DestructIndustry(Industry *i)
410 {
411  for (TileIndex tile = 0; tile != Map::Size(); tile++) {
412  if (i->TileBelongsToIndustry(tile)) {
414  MarkTileDirtyByTile(tile);
415  }
416  }
417 }
418 
432 static bool DisasterTick_Aircraft(DisasterVehicle *v, uint16_t image_override, bool leave_at_top, StringID news_message, IndustryBehaviour industry_flag)
433 {
434  v->tick_counter++;
435  v->image_override = (v->state == 1 && HasBit(v->tick_counter, 2)) ? image_override : 0;
436 
438  v->UpdatePosition(gp.x, gp.y, GetAircraftFlightLevel(v));
439 
440  if ((leave_at_top && gp.x < (-10 * (int)TILE_SIZE)) || (!leave_at_top && gp.x > (int)(Map::SizeX() * TILE_SIZE + 9 * TILE_SIZE) - 1)) {
441  delete v;
442  return false;
443  }
444 
445  if (v->state == 2) {
446  if (GB(v->tick_counter, 0, 2) == 0) {
447  Industry *i = Industry::Get(v->dest_tile.base()); // Industry destructor calls ReleaseDisastersTargetingIndustry, so this is valid
448  int x = TileX(i->location.tile) * TILE_SIZE;
449  int y = TileY(i->location.tile) * TILE_SIZE;
450  uint32_t r = Random();
451 
453  GB(r, 0, 6) + x,
454  GB(r, 6, 6) + y,
455  GB(r, 12, 4),
457 
458  if (++v->age >= 55) v->state = 3;
459  }
460  } else if (v->state == 1) {
461  if (++v->age == 112) {
462  v->state = 2;
463  v->age = 0;
464 
465  Industry *i = Industry::Get(v->dest_tile.base()); // Industry destructor calls ReleaseDisastersTargetingIndustry, so this is valid
466  DestructIndustry(i);
467 
468  SetDParam(0, i->town->index);
469  AddIndustryNewsItem(news_message, NT_ACCIDENT, i->index);
471  }
472  } else if (v->state == 0) {
473  int x = v->x_pos + ((leave_at_top ? -15 : 15) * TILE_SIZE);
474  int y = v->y_pos;
475 
476  if ((uint)x > Map::MaxX() * TILE_SIZE - 1) return true;
477 
478  TileIndex tile = TileVirtXY(x, y);
479  if (!IsTileType(tile, MP_INDUSTRY)) return true;
480 
481  IndustryID ind = GetIndustryIndex(tile);
482  v->dest_tile = ind;
483 
484  if (GetIndustrySpec(Industry::Get(ind)->type)->behaviour & industry_flag) {
485  v->state = 1;
486  v->age = 0;
487  }
488  }
489 
490  return true;
491 }
492 
495 {
496  return DisasterTick_Aircraft(v, SPR_F_15_FIRING, true, STR_NEWS_DISASTER_AIRPLANE_OIL_REFINERY, INDUSTRYBEH_AIRPLANE_ATTACKS);
497 }
498 
501 {
502  return DisasterTick_Aircraft(v, SPR_AH_64A_FIRING, false, STR_NEWS_DISASTER_HELICOPTER_FACTORY, INDUSTRYBEH_CHOPPER_ATTACKS);
503 }
504 
507 {
508  v->tick_counter++;
509  if (HasBit(v->tick_counter, 0)) return true;
510 
511  SpriteID &cur_image = v->sprite_cache.sprite_seq.seq[0].sprite;
512  if (++cur_image > SPR_ROTOR_MOVING_3) cur_image = SPR_ROTOR_MOVING_1;
513 
515 
516  return true;
517 }
518 
526 {
527  v->tick_counter++;
528 
529  if (v->state == 1) {
530  int x = TileX(v->dest_tile) * TILE_SIZE + TILE_SIZE / 2;
531  int y = TileY(v->dest_tile) * TILE_SIZE + TILE_SIZE / 2;
532  if (Delta(v->x_pos, x) + Delta(v->y_pos, y) >= 8) {
533  v->direction = GetDirectionTowards(v, x, y);
534 
536  v->UpdatePosition(gp.x, gp.y, GetAircraftFlightLevel(v));
537  return true;
538  }
539 
540  if (!IsValidTile(v->dest_tile)) {
541  /* Make sure we don't land outside the map. */
542  delete v;
543  return false;
544  }
545 
546  int z = GetSlopePixelZ(v->x_pos, v->y_pos);
547  if (z < v->z_pos) {
548  v->UpdatePosition(v->x_pos, v->y_pos, v->z_pos - 1);
549  return true;
550  }
551 
552  v->state = 2;
553 
554  for (Vehicle *target : Vehicle::Iterate()) {
555  if (target->IsGroundVehicle()) {
556  if (Delta(target->x_pos, v->x_pos) + Delta(target->y_pos, v->y_pos) <= 12 * (int)TILE_SIZE) {
557  target->breakdown_ctr = 5;
558  target->breakdown_delay = 0xF0;
559  }
560  }
561  }
562 
563  Town *t = ClosestTownFromTile(v->dest_tile, UINT_MAX);
564  SetDParam(0, t->index);
565  AddTileNewsItem(STR_NEWS_DISASTER_BIG_UFO, NT_ACCIDENT, v->tile);
566 
567  if (!Vehicle::CanAllocateItem(2)) {
568  delete v;
569  return false;
570  }
573  u->SetNext(w);
574  } else if (v->state == 0) {
575  int x = TileX(v->dest_tile) * TILE_SIZE;
576  int y = TileY(v->dest_tile) * TILE_SIZE;
577  if (Delta(x, v->x_pos) + Delta(y, v->y_pos) >= (int)TILE_SIZE) {
578  v->direction = GetDirectionTowards(v, x, y);
580  v->UpdatePosition(gp.x, gp.y, GetAircraftFlightLevel(v));
581  return true;
582  }
583 
584  if (++v->age < 6) {
585  v->dest_tile = RandomTile();
586  return true;
587  }
588  v->state = 1;
589 
590  const auto is_valid_target = [](const Train *t) {
591  return t->IsFrontEngine() // Only the engines
592  && Company::IsHumanID(t->owner) // Don't break AIs
593  && IsPlainRailTile(t->tile) // No tunnels
594  && (t->vehstatus & VS_CRASHED) == 0; // Not crashed
595  };
596 
597  uint n = 0; // Total number of targetable trains.
598  for (const Train *t : Train::Iterate()) {
599  if (is_valid_target(t)) n++;
600  }
601 
602  if (n == 0) {
603  /* If there are no targetable trains, destroy the UFO. */
604  delete v;
605  return false;
606  }
607 
608  n = RandomRange(n); // Choose one of them.
609  for (const Train *t : Train::Iterate()) {
610  /* Find (n+1)-th train. */
611  if (is_valid_target(t) && (n-- == 0)) {
612  /* Target it. */
613  v->dest_tile = t->tile;
614  v->age = 0;
615  break;
616  }
617  }
618  }
619 
620  return true;
621 }
622 
628 {
629  v->tick_counter++;
630 
632  v->UpdatePosition(gp.x, gp.y, GetAircraftFlightLevel(v));
633 
634  if (gp.x > (int)(Map::SizeX() * TILE_SIZE + 9 * TILE_SIZE) - 1) {
635  delete v;
636  return false;
637  }
638 
639  if (v->state == 0) {
641  if (Delta(v->x_pos, u->x_pos) > (int)TILE_SIZE) return true;
642  v->state = 1;
643 
645  if (_settings_client.sound.disaster) SndPlayVehicleFx(SND_12_EXPLOSION, u);
646 
647  delete u;
648 
649  for (int i = 0; i != 80; i++) {
650  uint32_t r = Random();
652  GB(r, 0, 6) + v->x_pos - 32,
653  GB(r, 5, 6) + v->y_pos - 32,
654  0,
656  }
657 
658  for (int dy = -3; dy < 3; dy++) {
659  for (int dx = -3; dx < 3; dx++) {
660  TileIndex tile = TileAddWrap(v->tile, dx, dy);
661  if (tile != INVALID_TILE) DisasterClearSquare(tile);
662  }
663  }
664  }
665 
666  return true;
667 }
668 
674 {
675  v->tick_counter++;
676 
677  if (++v->age > 8880) {
678  delete v;
679  return false;
680  }
681 
682  if (!HasBit(v->tick_counter, 0)) return true;
683 
685  if (IsValidTile(tile)) {
687  if (trackbits == TRACK_BIT_ALL && !Chance16(1, 90)) {
689  v->UpdatePosition(gp.x, gp.y, v->z_pos);
690  return true;
691  }
692  }
693 
694  v->direction = ChangeDir(v->direction, GB(Random(), 0, 1) ? DIRDIFF_90RIGHT : DIRDIFF_90LEFT);
695 
696  return true;
697 }
698 
699 
700 static bool DisasterTick_NULL(DisasterVehicle *)
701 {
702  return true;
703 }
704 
705 typedef bool DisasterVehicleTickProc(DisasterVehicle *v);
706 
707 static DisasterVehicleTickProc * const _disastervehicle_tick_procs[] = {
708  DisasterTick_Zeppeliner, DisasterTick_NULL,
709  DisasterTick_Ufo, DisasterTick_NULL,
710  DisasterTick_Airplane, DisasterTick_NULL,
713  DisasterTick_NULL,
716 };
717 
718 
720 {
721  return _disastervehicle_tick_procs[this->subtype](this);
722 }
723 
724 typedef void DisasterInitProc();
725 
726 
732 {
733  if (!Vehicle::CanAllocateItem(2)) return;
734 
735  /* Pick a random place, unless we find a small airport */
736  int x = TileX(Random()) * TILE_SIZE + TILE_SIZE / 2;
737 
738  for (const Station *st : Station::Iterate()) {
739  if (st->airport.tile != INVALID_TILE && (st->airport.type == AT_SMALL || st->airport.type == AT_LARGE)) {
740  x = (TileX(st->airport.tile) + 2) * TILE_SIZE;
741  break;
742  }
743  }
744 
746  /* Allocate shadow */
748  v->SetNext(u);
749 }
750 
751 
757 {
758  if (!Vehicle::CanAllocateItem(2)) return;
759 
760  int x = TileX(Random()) * TILE_SIZE + TILE_SIZE / 2;
762  v->dest_tile = TileXY(Map::SizeX() / 2, Map::SizeY() / 2);
763 
764  /* Allocate shadow */
766  v->SetNext(u);
767 }
768 
769 
770 /* Combat airplane which destroys an oil refinery */
771 static void Disaster_Airplane_Init()
772 {
773  if (!Vehicle::CanAllocateItem(2)) return;
774 
775  Industry *found = nullptr;
776 
777  for (Industry *i : Industry::Iterate()) {
779  (found == nullptr || Chance16(1, 2))) {
780  found = i;
781  }
782  }
783 
784  if (found == nullptr) return;
785 
786  /* Start from the bottom (south side) of the map */
787  int x = (Map::SizeX() + 9) * TILE_SIZE - 1;
788  int y = TileY(found->location.tile) * TILE_SIZE + 37;
789 
792  v->SetNext(u);
793 }
794 
795 
798 {
799  if (!Vehicle::CanAllocateItem(3)) return;
800 
801  Industry *found = nullptr;
802 
803  for (Industry *i : Industry::Iterate()) {
805  (found == nullptr || Chance16(1, 2))) {
806  found = i;
807  }
808  }
809 
810  if (found == nullptr) return;
811 
812  int x = -16 * (int)TILE_SIZE;
813  int y = TileY(found->location.tile) * TILE_SIZE + 37;
814 
817  v->SetNext(u);
818 
820  u->SetNext(w);
821 }
822 
823 
824 /* Big Ufo which lands on a piece of rail and will consequently be shot
825  * down by a combat airplane, destroying the surroundings */
826 static void Disaster_Big_Ufo_Init()
827 {
828  if (!Vehicle::CanAllocateItem(2)) return;
829 
830  int x = TileX(Random()) * TILE_SIZE + TILE_SIZE / 2;
831  int y = Map::MaxX() * TILE_SIZE - 1;
832 
834  v->dest_tile = TileXY(Map::SizeX() / 2, Map::SizeY() / 2);
835 
836  /* Allocate shadow */
838  v->SetNext(u);
839 }
840 
841 
842 static void Disaster_Submarine_Init(DisasterSubType subtype)
843 {
844  if (!Vehicle::CanAllocateItem()) return;
845 
846  int y;
847  Direction dir;
848  uint32_t r = Random();
849  int x = TileX(r) * TILE_SIZE + TILE_SIZE / 2;
850 
851  if (HasBit(r, 31)) {
852  y = Map::MaxY() * TILE_SIZE - TILE_SIZE / 2 - 1;
853  dir = DIR_NW;
854  } else {
855  y = TILE_SIZE / 2;
857  dir = DIR_SE;
858  }
859  if (!IsWaterTile(TileVirtXY(x, y))) return;
860 
861  new DisasterVehicle(x, y, dir, subtype);
862 }
863 
864 /* Curious submarine #1, just floats around */
865 static void Disaster_Small_Submarine_Init()
866 {
867  Disaster_Submarine_Init(ST_SMALL_SUBMARINE);
868 }
869 
870 
871 /* Curious submarine #2, just floats around */
872 static void Disaster_Big_Submarine_Init()
873 {
874  Disaster_Submarine_Init(ST_BIG_SUBMARINE);
875 }
876 
877 
883 {
884  int index = GB(Random(), 0, 4);
885  uint m;
886 
887  for (m = 0; m < 15; m++) {
888  for (const Industry *i : Industry::Iterate()) {
889  if ((GetIndustrySpec(i->type)->behaviour & INDUSTRYBEH_CAN_SUBSIDENCE) && --index < 0) {
890  SetDParam(0, i->town->index);
891  AddTileNewsItem(STR_NEWS_DISASTER_COAL_MINE_SUBSIDENCE, NT_ACCIDENT, i->location.tile + TileDiffXY(1, 1)); // keep the news, even when the mine closes
892 
893  {
894  TileIndex tile = i->location.tile;
895  TileIndexDiff step = TileOffsByDiagDir((DiagDirection)GB(Random(), 0, 2));
896 
897  for (uint n = 0; n < 30; n++) {
898  DisasterClearSquare(tile);
899  tile += step;
900  if (!IsValidTile(tile)) break;
901  }
902  }
903  return;
904  }
905  }
906  }
907 }
908 
909 struct Disaster {
910  DisasterInitProc *init_proc;
913 };
914 
915 static const Disaster _disasters[] = {
916  {Disaster_Zeppeliner_Init, 1930, 1955}, // zeppeliner
917  {Disaster_Small_Ufo_Init, 1940, 1970}, // ufo (small)
918  {Disaster_Airplane_Init, 1960, 1990}, // airplane
919  {Disaster_Helicopter_Init, 1970, 2000}, // helicopter
920  {Disaster_Big_Ufo_Init, 2000, 2100}, // ufo (big)
921  {Disaster_Small_Submarine_Init, 1940, 1965}, // submarine (small)
922  {Disaster_Big_Submarine_Init, 1975, 2010}, // submarine (big)
923  {Disaster_CoalMine_Init, 1950, 1985}, // coalmine
924 };
925 
926 static void DoDisaster()
927 {
928  std::vector<DisasterInitProc *> available_disasters;
929 
930  for (auto &disaster : _disasters) {
931  if (TimerGameCalendar::year >= disaster.min_year && TimerGameCalendar::year < disaster.max_year) {
932  available_disasters.push_back(disaster.init_proc);
933  }
934  }
935 
936  if (available_disasters.empty()) return;
937 
938  available_disasters[RandomRange(static_cast<uint32_t>(available_disasters.size()))]();
939 }
940 
941 
942 static void ResetDisasterDelay()
943 {
944  _disaster_delay = GB(Random(), 0, 9) + 730;
945 }
946 
947 static IntervalTimer<TimerGameEconomy> _economy_disaster_daily({TimerGameEconomy::DAY, TimerGameEconomy::Priority::DISASTER}, [](auto)
948 {
949  if (--_disaster_delay != 0) return;
950 
951  ResetDisasterDelay();
952 
953  if (_settings_game.difficulty.disasters != 0) DoDisaster();
954 });
955 
956 void StartupDisasters()
957 {
958  ResetDisasterDelay();
959 }
960 
967 {
969  /* primary disaster vehicles that have chosen target */
970  if (v->subtype == ST_AIRPLANE || v->subtype == ST_HELICOPTER) {
971  /* if it has chosen target, and it is this industry (yes, dest_tile is IndustryID here), set order to "leaving map peacefully" */
972  if (v->state > 0 && v->dest_tile == (uint32_t)i) v->state = 3;
973  }
974  }
975 }
976 
982 {
984  if (v == nullptr) return;
985 
986  /* primary disaster vehicles that have chosen target */
987  assert(v->subtype == ST_SMALL_UFO);
988  assert(v->state != 0);
989 
990  /* Revert to target-searching */
991  v->state = 0;
992  v->dest_tile = RandomTile();
993  GetAircraftFlightLevelBounds(v, &v->z_pos, nullptr);
994  v->age = 0;
995 }
996 
998 {
999  this->x_offs = -1;
1000  this->y_offs = -1;
1001  this->x_extent = 2;
1002  this->y_extent = 2;
1003  this->z_extent = 5;
1004 }
Base functions for all AIs.
Base for aircraft.
void GetAircraftFlightLevelBounds(const Vehicle *v, int *min, int *max)
Get the 'flight level' bounds, in pixels from 'z_pos' 0 for a particular vehicle for normal flight si...
static const int ROTOR_Z_OFFSET
Z Offset between helicopter- and rotorsprite.
Definition: aircraft.h:48
@ AT_SMALL
Small airport.
Definition: airport.h:29
@ AT_LARGE
Large airport.
Definition: airport.h:30
Class for backupping variables and making sure they are restored later.
constexpr debug_inline bool HasBit(const T x, const uint8_t y)
Checks if a bit in a value is set.
#define CLRBITS(x, y)
Clears several bits in a variable.
#define SETBITS(x, y)
Sets several bits in a variable.
constexpr static debug_inline uint GB(const T x, const uint8_t s, const uint8_t n)
Fetch n bits from x, started at bit s.
static void NewEvent(CompanyID company, ScriptEvent *event)
Queue a new event for an AI.
Definition: ai_core.cpp:243
static void NewEvent(class ScriptEvent *event)
Queue a new event for a Game Script.
Definition: game_core.cpp:146
An interval timer will fire every interval, and will continue to fire until it is deleted.
Definition: timer.h:76
static Year year
Current year, starting at 0.
Functions related to commands.
@ DC_EXEC
execute the given command
Definition: command_type.h:376
Definition of stuff that is very close to a company, like the company struct itself.
CompanyID _current_company
Company currently doing an action.
Definition: company_cmd.cpp:53
Functions related to companies.
@ OWNER_NONE
The tile has no ownership.
Definition: company_type.h:25
@ OWNER_WATER
The tile/execution is done by "water".
Definition: company_type.h:26
Direction ChangeDir(Direction d, DirDiff delta)
Change a direction by a given difference.
DiagDirection DirToDiagDir(Direction dir)
Convert a Direction to a DiagDirection.
Direction
Defines the 8 directions on the map.
@ DIR_SW
Southwest.
@ DIR_NW
Northwest.
@ DIR_SE
Southeast.
@ DIR_NE
Northeast.
DiagDirection
Enumeration for diagonal directions.
@ DIRDIFF_90LEFT
Angle of 90 degrees left.
@ DIRDIFF_90RIGHT
Angle of 90 degrees right.
static bool DisasterTick_Big_Ufo_Destroyer(DisasterVehicle *v)
Skyranger destroying (Big) Ufo handling, v->state states: 0: Home in on landed Ufo and shoot it down.
static void Disaster_Small_Ufo_Init()
Ufo which flies around aimlessly from the middle of the map a bit until it locates a road vehicle whi...
static bool DisasterTick_Big_Ufo(DisasterVehicle *v)
(Big) Ufo handling, v->state states: 0: Fly around to the middle of the map, then randomly for a whil...
static void Disaster_Helicopter_Init()
Combat helicopter that destroys a factory.
static bool DisasterTick_Zeppeliner(DisasterVehicle *v)
Zeppeliner handling, v->state states: 0: Zeppeliner initialization has found a small airport,...
static bool DisasterTick_Helicopter_Rotors(DisasterVehicle *v)
Helicopter rotor blades; keep these spinning.
static bool DisasterTick_Ufo(DisasterVehicle *v)
(Small) Ufo handling, v->state states: 0: Fly around to the middle of the map, then randomly,...
static bool DisasterTick_Airplane(DisasterVehicle *v)
Airplane handling.
static void Disaster_Zeppeliner_Init()
Zeppeliner which crashes on a small airport if one found, otherwise crashes on a random tile.
uint16_t _disaster_delay
Delay counter for considering the next disaster.
void ReleaseDisasterVehicle(VehicleID vehicle)
Notify disasters that we are about to delete a vehicle.
static bool DisasterTick_Aircraft(DisasterVehicle *v, uint16_t image_override, bool leave_at_top, StringID news_message, IndustryBehaviour industry_flag)
Aircraft handling, v->state states: 0: Fly towards the targeted industry 1: If within 15 tiles,...
static bool DisasterTick_Submarine(DisasterVehicle *v)
Submarine, v->state states: Unused, just float around aimlessly and pop up at different places,...
static bool DisasterTick_Helicopter(DisasterVehicle *v)
Helicopter handling.
void ReleaseDisastersTargetingIndustry(IndustryID i)
Marks all disasters targeting this industry in such a way they won't call Industry::Get(v->dest_tile)...
static void Disaster_CoalMine_Init()
Coal mine catastrophe, destroys a stretch of 30 tiles of land in a certain direction.
All disaster vehicles.
DisasterSubType
Different sub types of disaster vehicles.
@ ST_ZEPPELINER_SHADOW
Shadow of the zeppelin.
@ ST_HELICOPTER_SHADOW
Shadow of helicopter.
@ ST_SMALL_UFO_SHADOW
Shadow of small UFO.
@ ST_SMALL_UFO
Small UFO, tries to find a road vehicle to destroy.
@ ST_BIG_UFO
Big UFO, finds a piece of railroad to "park" on.
@ ST_BIG_UFO_SHADOW
Shadow of the big UFO.
@ ST_ZEPPELINER
Zeppelin, crashes at airports.
@ ST_BIG_UFO_DESTROYER_SHADOW
Shadow of the aircraft.
@ ST_BIG_UFO_DESTROYER
Aircraft the will bomb the big UFO.
@ ST_BIG_SUBMARINE
Big submarine, pops up in the oceans but doesn't do anything.
@ ST_SMALL_SUBMARINE
Small submarine, pops up in the oceans but doesn't do anything.
@ ST_HELICOPTER
Helicopter destroying a factory.
@ ST_AIRPLANE
Airplane destroying an oil refinery.
@ ST_HELICOPTER_ROTORS
Rotors of helicopter.
@ ST_AIRPLANE_SHADOW
Shadow of airplane.
EffectVehicle * CreateEffectVehicleAbove(int x, int y, int z, EffectVehicleType type)
Create an effect vehicle above a particular location.
EffectVehicle * CreateEffectVehicleRel(const Vehicle *v, int x, int y, int z, EffectVehicleType type)
Create an effect vehicle above a particular vehicle.
Functions related to effect vehicles.
@ EV_CRASH_SMOKE
Smoke of disasters.
@ EV_EXPLOSION_SMALL
Various explosions.
@ EV_EXPLOSION_LARGE
Various explosions.
Base functions for all Games.
uint32_t SpriteID
The number of a sprite, without mapping bits and colourtables.
Definition: gfx_type.h:18
void MarkTileDirtyByTile(TileIndex tile, int bridge_level_offset, int tile_height_override)
Mark a tile given by its index dirty for repaint.
Definition: viewport.cpp:2057
Base of all industries.
const IndustrySpec * GetIndustrySpec(IndustryType thistype)
Accessor for array _industry_specs.
void ResetIndustryConstructionStage(Tile tile)
Reset the construction stage counter of the industry, as well as the completion bit.
Definition: industry_map.h:187
IndustryID GetIndustryIndex(Tile t)
Get the industry ID of the given tile.
Definition: industry_map.h:63
IndustryBehaviour
Various industry behaviours mostly to represent original TTD specialities.
Definition: industrytype.h:55
@ INDUSTRYBEH_CAN_SUBSIDENCE
can cause a subsidence (coal mine, shaft that collapses)
Definition: industrytype.h:70
@ INDUSTRYBEH_AIRPLANE_ATTACKS
can be exploded by a military airplane (oil refinery)
Definition: industrytype.h:68
@ INDUSTRYBEH_CHOPPER_ATTACKS
can be exploded by a military helicopter (factory)
Definition: industrytype.h:69
TrackStatus GetTileTrackStatus(TileIndex tile, TransportType mode, uint sub_mode, DiagDirection side)
Returns information about trackdirs and signal states.
Definition: landscape.cpp:554
int GetSlopePixelZ(int x, int y, bool ground_vehicle)
Return world Z coordinate of a given point of a tile.
Definition: landscape.cpp:303
Command definitions related to landscape (slopes etc.).
TileIndex TileAddWrap(TileIndex tile, int addx, int addy)
This function checks if we add addx/addy to tile, if we do wrap around the edges.
Definition: map.cpp:97
static debug_inline TileIndex TileXY(uint x, uint y)
Returns the TileIndex of a coordinate.
Definition: map_func.h:373
TileIndexDiff TileDiffXY(int x, int y)
Calculates an offset for the given coordinate(-offset).
Definition: map_func.h:389
#define RandomTile()
Get a valid random tile.
Definition: map_func.h:661
static debug_inline uint TileY(TileIndex tile)
Get the Y component of a tile.
Definition: map_func.h:425
static debug_inline uint TileX(TileIndex tile)
Get the X component of a tile.
Definition: map_func.h:415
TileIndexDiff TileOffsByDiagDir(DiagDirection dir)
Convert a DiagDirection to a TileIndexDiff.
Definition: map_func.h:567
static debug_inline TileIndex TileVirtXY(uint x, uint y)
Get a tile from the virtual XY-coordinate.
Definition: map_func.h:404
int32_t TileIndexDiff
An offset value between two tiles.
Definition: map_type.h:23
constexpr T Delta(const T a, const T b)
Returns the (absolute) difference between two (scalar) variables.
Definition: math_func.hpp:234
constexpr T Clamp(const T a, const T min, const T max)
Clamp a value between an interval.
Definition: math_func.hpp:79
Functions related to news.
@ NT_ACCIDENT
An accident or disaster has occurred.
Definition: news_type.h:26
static debug_inline bool IsRailDepot(Tile t)
Is this rail tile a rail depot?
Definition: rail_map.h:95
static debug_inline bool IsPlainRailTile(Tile t)
Checks whether the tile is a rail tile or rail tile with signals.
Definition: rail_map.h:60
Pseudo random number generator.
uint32_t RandomRange(uint32_t limit, const std::source_location location=std::source_location::current())
Pick a random number between 0 and limit - 1, inclusive.
Definition: random_func.hpp:88
bool Chance16(const uint32_t a, const uint32_t b, const std::source_location location=std::source_location::current())
Flips a coin with given probability.
Road vehicle states.
A number of safeguards to prevent using unsafe methods.
GameSettings _settings_game
Game settings of a running game or the scenario editor.
Definition: settings.cpp:57
ClientSettings _settings_client
The current settings for this game.
Definition: settings.cpp:56
static SigSegState UpdateSignalsInBuffer(Owner owner)
Updates blocks in _globset buffer.
Definition: signal.cpp:482
Functions related to sound.
@ SND_12_EXPLOSION
16 == 0x10 Destruction, crashes, disasters, ...
Definition: sound_type.h:55
Base classes/functions for stations.
bool IsAirportTile(Tile t)
Is this tile a station tile and an airport tile?
Definition: station_map.h:167
StationID GetStationIndex(Tile t)
Get StationID from a tile.
Definition: station_map.h:28
Definition of base types and functions in a cross-platform compatible way.
void SetDParam(size_t n, uint64_t v)
Set a string parameter v at index n in the global string parameter array.
Definition: strings.cpp:104
Functions related to OTTD's strings.
uint32_t StringID
Numeric value that represents a string, independent of the selected language.
Definition: strings_type.h:16
uint64_t flags
stores which blocks on the airport are taken. was 16 bit earlier on, then 32
Definition: station_base.h:293
Class to backup a specific variable and restore it later.
Definition: backup_type.hpp:21
void Restore()
Restore the variable.
VehicleType type
Type of vehicle.
Definition: vehicle_type.h:51
SoundSettings sound
sound effect settings
static bool IsHumanID(size_t index)
Is this company a company not controlled by a NoAI program?
Definition: company_base.h:184
bool freeform_edges
allow terraforming the tiles at the map edges
bool disasters
are disasters enabled
Disasters, like submarines, skyrangers and their shadows, belong to this class.
void UpdateDeltaXY() override
Updates the x and y offsets and the size of the sprite used for this vehicle.
SpriteID image_override
Override for the default disaster vehicle sprite.
void UpdatePosition(int x, int y, int z)
Update the position of the vehicle.
DisasterVehicle()
For use by saveload.
VehicleID big_ufo_destroyer_target
The big UFO that this destroyer is supposed to bomb.
bool Tick() override
Calls the tick handler of the vehicle.
uint16_t state
Action stage of the disaster vehicle.
DisasterInitProc * init_proc
The init function for this disaster.
TimerGameCalendar::Year min_year
The first year this disaster will occur.
TimerGameCalendar::Year max_year
The last year this disaster will occur.
ConstructionSettings construction
construction of things in-game
DifficultySettings difficulty
settings related to the difficulty
Position information of a vehicle after it moved.
Definition: vehicle_func.h:77
int y
x and y position of the vehicle after moving
Definition: vehicle_func.h:78
IndustryBehaviour behaviour
How this industry will behave, and how others entities can use it.
Definition: industrytype.h:119
Defines the internal data of a functional industry.
Definition: industry.h:66
IndustryType type
type of industry.
Definition: industry.h:102
Town * town
Nearest town.
Definition: industry.h:95
TileArea location
Location of the industry.
Definition: industry.h:94
bool TileBelongsToIndustry(TileIndex tile) const
Check if a given tile belongs to this industry.
Definition: industry.h:135
static uint SizeY()
Get the size of the map along the Y.
Definition: map_func.h:279
static debug_inline uint SizeX()
Get the size of the map along the X.
Definition: map_func.h:270
static uint MaxY()
Gets the maximum Y coordinate within the map, including MP_VOID.
Definition: map_func.h:306
static debug_inline uint Size()
Get the size of the map.
Definition: map_func.h:288
static debug_inline uint MaxX()
Gets the maximum X coordinate within the map, including MP_VOID.
Definition: map_func.h:297
VehicleSpriteSeq sprite_seq
Vehicle appearance.
Definition: vehicle_base.h:200
TileIndex tile
The base tile of the area.
Definition: tilearea_type.h:19
SpriteID sprite
The 'real' sprite.
Definition: gfx_type.h:24
Tindex index
Index of this pool item.
Definition: pool_type.hpp:238
static Titem * Get(size_t index)
Returns Titem with given index.
Definition: pool_type.hpp:339
static bool CanAllocateItem(size_t n=1)
Helper functions so we can use PoolItem::Function() instead of _poolitem_pool.Function()
Definition: pool_type.hpp:309
static Pool::IterateWrapper< Titem > Iterate(size_t from=0)
Returns an iterable ensemble of all valid Titem.
Definition: pool_type.hpp:388
Buses, trucks and trams belong to this class.
Definition: roadveh.h:98
uint Crash(bool flooded=false) override
Crash the (whole) vehicle chain.
uint16_t crashed_ctr
Animation counter when the vehicle has crashed.
Definition: roadveh.h:105
VehicleID disaster_vehicle
NOSAVE: Disaster vehicle targetting this vehicle.
Definition: roadveh.h:109
bool disaster
Play disaster and accident sounds.
static Pool::IterateWrapper< Station > Iterate(size_t from=0)
Returns an iterable ensemble of all valid stations of type T.
static Station * GetByTile(TileIndex tile)
Get the station belonging to a specific tile.
Class defining several overloaded accessors so we don't have to cast vehicle types that often.
DisasterVehicle * Next() const
Get next vehicle in the chain.
static Pool::IterateWrapper< T > Iterate(size_t from=0)
Returns an iterable ensemble of all valid vehicles of type T.
static DisasterVehicle * GetIfValid(size_t index)
Returns vehicle if the index is a valid index for this vehicle type.
static T * Get(size_t index)
Gets vehicle with given index.
Station data structure.
Definition: station_base.h:439
Airport airport
Tile area the airport covers.
Definition: station_base.h:453
Town data structure.
Definition: town.h:54
'Train' is either a loco or a wagon.
Definition: train.h:89
void Set(SpriteID sprite)
Assign a single sprite to the sequence.
Definition: vehicle_base.h:168
Vehicle data structure.
Definition: vehicle_base.h:244
int32_t z_pos
z coordinate.
Definition: vehicle_base.h:306
Direction direction
facing
Definition: vehicle_base.h:307
uint8_t x_extent
x-extent of vehicle bounding box
Definition: vehicle_base.h:316
uint8_t subtype
subtype (Filled with values from AircraftSubType/DisasterSubType/EffectVehicleType/GroundVehicleSubty...
Definition: vehicle_base.h:355
uint8_t breakdown_ctr
Counter for managing breakdown events.
Definition: vehicle_base.h:299
uint8_t breakdown_delay
Counter for managing breakdown length.
Definition: vehicle_base.h:300
uint8_t z_extent
z-extent of vehicle bounding box
Definition: vehicle_base.h:318
int8_t y_offs
y offset for vehicle sprite
Definition: vehicle_base.h:322
debug_inline bool IsFrontEngine() const
Check if the vehicle is a front engine.
Definition: vehicle_base.h:945
int8_t x_offs
x offset for vehicle sprite
Definition: vehicle_base.h:321
int32_t y_pos
y coordinate.
Definition: vehicle_base.h:305
int32_t x_pos
x coordinate.
Definition: vehicle_base.h:304
uint8_t y_extent
y-extent of vehicle bounding box
Definition: vehicle_base.h:317
uint8_t vehstatus
Status.
Definition: vehicle_base.h:354
TimerGameCalendar::Date age
Age in calendar days.
Definition: vehicle_base.h:292
void SetNext(Vehicle *next)
Set the next vehicle of this vehicle.
Definition: vehicle.cpp:2937
MutableSpriteCache sprite_cache
Cache of sprites and values related to recalculating them, see MutableSpriteCache.
Definition: vehicle_base.h:368
void UpdatePositionAndViewport()
Update the position of the vehicle, and update the viewport.
Definition: vehicle.cpp:1764
uint8_t tick_counter
Increased by one for each tick.
Definition: vehicle_base.h:350
TileIndex tile
Current tile index.
Definition: vehicle_base.h:264
TileIndex dest_tile
Heading for this tile.
Definition: vehicle_base.h:271
void UpdatePosition()
Update the position of the vehicle.
Definition: vehicle.cpp:1693
Owner owner
Which company owns the vehicle?
Definition: vehicle_base.h:309
Owner GetTileOwner(Tile tile)
Returns the owner of a tile.
Definition: tile_map.h:178
static debug_inline TileType GetTileType(Tile tile)
Get the tiletype of a given tile.
Definition: tile_map.h:96
bool IsValidTile(Tile tile)
Checks if a tile is valid.
Definition: tile_map.h:161
static debug_inline bool IsTileType(Tile tile, TileType type)
Checks if a tile is a given tiletype.
Definition: tile_map.h:150
static const uint TILE_SIZE
Tile size in world coordinates.
Definition: tile_type.h:15
constexpr TileIndex INVALID_TILE
The very nice invalid tile marker.
Definition: tile_type.h:95
@ MP_TREES
Tile got trees.
Definition: tile_type.h:52
@ MP_CLEAR
A tile without any structures, i.e. grass, rocks, farm fields etc.
Definition: tile_type.h:48
@ MP_HOUSE
A house by a town.
Definition: tile_type.h:51
@ MP_RAILWAY
A railway.
Definition: tile_type.h:49
@ MP_INDUSTRY
Part of an industry.
Definition: tile_type.h:56
Definition of Interval and OneShot timers.
Definition of the game-economy-timer.
Base of the town class.
Town * ClosestTownFromTile(TileIndex tile, uint threshold)
Return the town closest (in distance or ownership) to a given tile, within a given threshold.
Definition: town_cmd.cpp:3870
TrackBits TrackStatusToTrackBits(TrackStatus ts)
Returns the present-track-information of a TrackStatus.
Definition: track_func.h:363
TrackBits
Allow incrementing of Track variables.
Definition: track_type.h:35
@ TRACK_BIT_ALL
All possible tracks.
Definition: track_type.h:50
Base for the train class.
@ TRANSPORT_WATER
Transport over water.
CommandCost EnsureNoVehicleOnGround(TileIndex tile)
Ensure there is no vehicle at the ground at the given position.
Definition: vehicle.cpp:546
GetNewVehiclePosResult GetNewVehiclePos(const Vehicle *v)
Get position information of a vehicle when moving one pixel in the direction it is facing.
Definition: vehicle.cpp:1784
@ VS_UNCLICKABLE
Vehicle is not clickable by the user (shadow vehicles).
Definition: vehicle_base.h:35
@ VS_SHADOW
Vehicle is a shadow vehicle.
Definition: vehicle_base.h:38
@ VS_HIDDEN
Vehicle is not visible.
Definition: vehicle_base.h:33
@ VS_CRASHED
Vehicle is crashed.
Definition: vehicle_base.h:40
Functions related to vehicles.
@ VEH_ROAD
Road vehicle type.
Definition: vehicle_type.h:25
uint32_t VehicleID
The type all our vehicle IDs have.
Definition: vehicle_type.h:16
static const VehicleID INVALID_VEHICLE
Constant representing a non-existing vehicle.
Definition: vehicle_type.h:54
Functions related to (drawing on) viewports.
bool IsWaterTile(Tile t)
Is it a water tile with plain water?
Definition: water_map.h:190