00001
00002
00003
00004
00005
00006
00007
00008
00009
00012 #include "stdafx.h"
00013 #include "debug.h"
00014 #include "station_base.h"
00015 #include "waypoint_base.h"
00016 #include "roadstop_base.h"
00017 #include "newgrf_cargo.h"
00018 #include "newgrf_station.h"
00019 #include "newgrf_spritegroup.h"
00020 #include "newgrf_sound.h"
00021 #include "newgrf_railtype.h"
00022 #include "town.h"
00023 #include "newgrf_town.h"
00024 #include "company_func.h"
00025 #include "tunnelbridge_map.h"
00026 #include "newgrf.h"
00027 #include "newgrf_animation_base.h"
00028 #include "newgrf_class_func.h"
00029
00030
00031 template <typename Tspec, typename Tid, Tid Tmax>
00032 void NewGRFClass<Tspec, Tid, Tmax>::InsertDefaults()
00033 {
00034
00035 classes[0].global_id = 'DFLT';
00036 classes[0].name = STR_STATION_CLASS_DFLT;
00037 classes[0].count = 1;
00038 classes[0].spec = MallocT<StationSpec*>(1);
00039 classes[0].spec[0] = NULL;
00040
00041 classes[1].global_id = 'WAYP';
00042 classes[1].name = STR_STATION_CLASS_WAYP;
00043 classes[1].count = 1;
00044 classes[1].spec = MallocT<StationSpec*>(1);
00045 classes[1].spec[0] = NULL;
00046 }
00047
00048 INSTANTIATE_NEWGRF_CLASS_METHODS(StationClass, StationSpec, StationClassID, STAT_CLASS_MAX)
00049
00050 static const uint MAX_SPECLIST = 255;
00051
00052 enum TriggerArea {
00053 TA_TILE,
00054 TA_PLATFORM,
00055 TA_WHOLE,
00056 };
00057
00058 struct ETileArea : TileArea {
00059 ETileArea(const BaseStation *st, TileIndex tile, TriggerArea ta)
00060 {
00061 switch (ta) {
00062 default: NOT_REACHED();
00063
00064 case TA_TILE:
00065 this->tile = tile;
00066 this->w = 1;
00067 this->h = 1;
00068 break;
00069
00070 case TA_PLATFORM: {
00071 TileIndex start, end;
00072 Axis axis = GetRailStationAxis(tile);
00073 TileIndexDiff delta = TileOffsByDiagDir(AxisToDiagDir(axis));
00074
00075 for (end = tile; IsRailStationTile(end + delta) && IsCompatibleTrainStationTile(tile, end + delta); end += delta) { }
00076 for (start = tile; IsRailStationTile(start - delta) && IsCompatibleTrainStationTile(tile, start - delta); start -= delta) { }
00077
00078 this->tile = start;
00079 this->w = TileX(end) - TileX(start) + 1;
00080 this->h = TileY(end) - TileY(start) + 1;
00081 break;
00082 }
00083
00084 case TA_WHOLE:
00085 st->GetTileArea(this, Station::IsExpected(st) ? STATION_RAIL : STATION_WAYPOINT);
00086 break;
00087 }
00088 }
00089 };
00090
00091
00104 uint32 GetPlatformInfo(Axis axis, byte tile, int platforms, int length, int x, int y, bool centred)
00105 {
00106 uint32 retval = 0;
00107
00108 if (axis == AXIS_X) {
00109 Swap(platforms, length);
00110 Swap(x, y);
00111 }
00112
00113 if (centred) {
00114 x -= platforms / 2;
00115 y -= length / 2;
00116 x = Clamp(x, -8, 7);
00117 y = Clamp(y, -8, 7);
00118 SB(retval, 0, 4, y & 0xF);
00119 SB(retval, 4, 4, x & 0xF);
00120 } else {
00121 SB(retval, 0, 4, min(15, y));
00122 SB(retval, 4, 4, min(15, length - y - 1));
00123 SB(retval, 8, 4, min(15, x));
00124 SB(retval, 12, 4, min(15, platforms - x - 1));
00125 }
00126 SB(retval, 16, 4, min(15, length));
00127 SB(retval, 20, 4, min(15, platforms));
00128 SB(retval, 24, 4, tile);
00129
00130 return retval;
00131 }
00132
00133
00142 static TileIndex FindRailStationEnd(TileIndex tile, TileIndexDiff delta, bool check_type, bool check_axis)
00143 {
00144 byte orig_type = 0;
00145 Axis orig_axis = AXIS_X;
00146 StationID sid = GetStationIndex(tile);
00147
00148 if (check_type) orig_type = GetCustomStationSpecIndex(tile);
00149 if (check_axis) orig_axis = GetRailStationAxis(tile);
00150
00151 while (true) {
00152 TileIndex new_tile = TILE_ADD(tile, delta);
00153
00154 if (!IsTileType(new_tile, MP_STATION) || GetStationIndex(new_tile) != sid) break;
00155 if (!HasStationRail(new_tile)) break;
00156 if (check_type && GetCustomStationSpecIndex(new_tile) != orig_type) break;
00157 if (check_axis && GetRailStationAxis(new_tile) != orig_axis) break;
00158
00159 tile = new_tile;
00160 }
00161 return tile;
00162 }
00163
00164
00165 static uint32 GetPlatformInfoHelper(TileIndex tile, bool check_type, bool check_axis, bool centred)
00166 {
00167 int tx = TileX(tile);
00168 int ty = TileY(tile);
00169 int sx = TileX(FindRailStationEnd(tile, TileDiffXY(-1, 0), check_type, check_axis));
00170 int sy = TileY(FindRailStationEnd(tile, TileDiffXY( 0, -1), check_type, check_axis));
00171 int ex = TileX(FindRailStationEnd(tile, TileDiffXY( 1, 0), check_type, check_axis)) + 1;
00172 int ey = TileY(FindRailStationEnd(tile, TileDiffXY( 0, 1), check_type, check_axis)) + 1;
00173
00174 tx -= sx; ex -= sx;
00175 ty -= sy; ey -= sy;
00176
00177 return GetPlatformInfo(GetRailStationAxis(tile), GetStationGfx(tile), ex, ey, tx, ty, centred);
00178 }
00179
00180
00181 static uint32 GetRailContinuationInfo(TileIndex tile)
00182 {
00183
00184 static const Direction x_dir[8] = { DIR_SW, DIR_NE, DIR_SE, DIR_NW, DIR_S, DIR_E, DIR_W, DIR_N };
00185 static const DiagDirection x_exits[8] = { DIAGDIR_SW, DIAGDIR_NE, DIAGDIR_SE, DIAGDIR_NW, DIAGDIR_SW, DIAGDIR_NE, DIAGDIR_SW, DIAGDIR_NE };
00186
00187
00188 static const Direction y_dir[8] = { DIR_SE, DIR_NW, DIR_SW, DIR_NE, DIR_S, DIR_W, DIR_E, DIR_N };
00189 static const DiagDirection y_exits[8] = { DIAGDIR_SE, DIAGDIR_NW, DIAGDIR_SW, DIAGDIR_NE, DIAGDIR_SE, DIAGDIR_NW, DIAGDIR_SE, DIAGDIR_NW };
00190
00191 Axis axis = GetRailStationAxis(tile);
00192
00193
00194 const Direction *dir = axis == AXIS_X ? x_dir : y_dir;
00195 const DiagDirection *diagdir = axis == AXIS_X ? x_exits : y_exits;
00196
00197 uint32 res = 0;
00198 uint i;
00199
00200 for (i = 0; i < lengthof(x_dir); i++, dir++, diagdir++) {
00201 TileIndex neighbour_tile = tile + TileOffsByDir(*dir);
00202 TrackBits trackbits = TrackStatusToTrackBits(GetTileTrackStatus(neighbour_tile, TRANSPORT_RAIL, 0));
00203 if (trackbits != TRACK_BIT_NONE) {
00204
00205 SetBit(res, i + 8);
00206
00207
00208
00209 if (IsTileType(neighbour_tile, MP_TUNNELBRIDGE) && GetTunnelBridgeDirection(neighbour_tile) != *diagdir) {
00210 continue;
00211 }
00212
00213
00214 if (trackbits & DiagdirReachesTracks(*diagdir)) SetBit(res, i);
00215 }
00216 }
00217
00218 return res;
00219 }
00220
00221
00222
00223 static uint32 StationGetRandomBits(const ResolverObject *object)
00224 {
00225 const BaseStation *st = object->u.station.st;
00226 const TileIndex tile = object->u.station.tile;
00227 return (st == NULL ? 0 : st->random_bits) | (tile == INVALID_TILE ? 0 : GetStationTileRandomBits(tile) << 16);
00228 }
00229
00230
00231 static uint32 StationGetTriggers(const ResolverObject *object)
00232 {
00233 const BaseStation *st = object->u.station.st;
00234 return st == NULL ? 0 : st->waiting_triggers;
00235 }
00236
00237
00238 static void StationSetTriggers(const ResolverObject *object, int triggers)
00239 {
00240 BaseStation *st = const_cast<BaseStation *>(object->u.station.st);
00241 assert(st != NULL);
00242 st->waiting_triggers = triggers;
00243 }
00244
00250 static struct {
00251 uint32 v40;
00252 uint32 v41;
00253 uint32 v45;
00254 uint32 v46;
00255 uint32 v47;
00256 uint32 v49;
00257 uint8 valid;
00258 } _svc;
00259
00260 static uint32 StationGetVariable(const ResolverObject *object, byte variable, byte parameter, bool *available)
00261 {
00262 const BaseStation *st = object->u.station.st;
00263 TileIndex tile = object->u.station.tile;
00264
00265 if (object->scope == VSG_SCOPE_PARENT) {
00266
00267 const Town *t;
00268
00269 if (st != NULL) {
00270 t = st->town;
00271 } else if (tile != INVALID_TILE) {
00272 t = ClosestTownFromTile(tile, UINT_MAX);
00273 } else {
00274 *available = false;
00275 return UINT_MAX;
00276 }
00277
00278 return TownGetVariable(variable, parameter, available, t);
00279 }
00280
00281 if (st == NULL) {
00282
00283 switch (variable) {
00284 case 0x40:
00285 case 0x41:
00286 case 0x46:
00287 case 0x47:
00288 case 0x49: return 0x2110000;
00289 case 0x42: return 0;
00290 case 0x43: return _current_company;
00291 case 0x44: return 2;
00292 case 0xFA: return Clamp(_date - DAYS_TILL_ORIGINAL_BASE_YEAR, 0, 65535);
00293 }
00294
00295 *available = false;
00296 return UINT_MAX;
00297 }
00298
00299 switch (variable) {
00300
00301 case 0x40:
00302 if (!HasBit(_svc.valid, 0)) { _svc.v40 = GetPlatformInfoHelper(tile, false, false, false); SetBit(_svc.valid, 0); }
00303 return _svc.v40;
00304
00305 case 0x41:
00306 if (!HasBit(_svc.valid, 1)) { _svc.v41 = GetPlatformInfoHelper(tile, true, false, false); SetBit(_svc.valid, 1); }
00307 return _svc.v41;
00308
00309 case 0x42: return GetTerrainType(tile) | (GetReverseRailTypeTranslation(GetRailType(tile), object->u.station.statspec->grf_prop.grffile) << 8);
00310 case 0x43: return st->owner;
00311 case 0x44: return HasStationReservation(tile) ? 7 : 4;
00312 case 0x45:
00313 if (!HasBit(_svc.valid, 2)) { _svc.v45 = GetRailContinuationInfo(tile); SetBit(_svc.valid, 2); }
00314 return _svc.v45;
00315
00316 case 0x46:
00317 if (!HasBit(_svc.valid, 3)) { _svc.v46 = GetPlatformInfoHelper(tile, false, false, true); SetBit(_svc.valid, 3); }
00318 return _svc.v46;
00319
00320 case 0x47:
00321 if (!HasBit(_svc.valid, 4)) { _svc.v47 = GetPlatformInfoHelper(tile, true, false, true); SetBit(_svc.valid, 4); }
00322 return _svc.v47;
00323
00324 case 0x49:
00325 if (!HasBit(_svc.valid, 5)) { _svc.v49 = GetPlatformInfoHelper(tile, false, true, false); SetBit(_svc.valid, 5); }
00326 return _svc.v49;
00327
00328 case 0x4A:
00329 return GetAnimationFrame(tile);
00330
00331
00332
00333 case 0x66:
00334 if (parameter != 0) tile = GetNearbyTile(parameter, tile);
00335 return st->TileBelongsToRailStation(tile) ? GetAnimationFrame(tile) : UINT_MAX;
00336
00337 case 0x67: {
00338 Axis axis = GetRailStationAxis(tile);
00339
00340 if (parameter != 0) tile = GetNearbyTile(parameter, tile);
00341
00342 Slope tileh = GetTileSlope(tile, NULL);
00343 bool swap = (axis == AXIS_Y && HasBit(tileh, CORNER_W) != HasBit(tileh, CORNER_E));
00344
00345 return GetNearbyTileInformation(tile) ^ (swap ? SLOPE_EW : 0);
00346 }
00347
00348 case 0x68: {
00349 TileIndex nearby_tile = GetNearbyTile(parameter, tile);
00350
00351 if (!HasStationTileRail(nearby_tile)) return 0xFFFFFFFF;
00352
00353 uint32 grfid = st->speclist[GetCustomStationSpecIndex(tile)].grfid;
00354 bool perpendicular = GetRailStationAxis(tile) != GetRailStationAxis(nearby_tile);
00355 bool same_station = st->TileBelongsToRailStation(nearby_tile);
00356 uint32 res = GB(GetStationGfx(nearby_tile), 1, 2) << 12 | !!perpendicular << 11 | !!same_station << 10;
00357
00358 if (IsCustomStationSpecIndex(nearby_tile)) {
00359 const StationSpecList ssl = BaseStation::GetByTile(nearby_tile)->speclist[GetCustomStationSpecIndex(nearby_tile)];
00360 res |= 1 << (ssl.grfid != grfid ? 9 : 8) | ssl.localidx;
00361 }
00362 return res;
00363 }
00364
00365
00366 case 0x82: return 50;
00367 case 0x84: return st->string_id;
00368 case 0x86: return 0;
00369 case 0xF0: return st->facilities;
00370 case 0xFA: return Clamp(st->build_date - DAYS_TILL_ORIGINAL_BASE_YEAR, 0, 65535);
00371 }
00372
00373 return st->GetNewGRFVariable(object, variable, parameter, available);
00374 }
00375
00376 uint32 Station::GetNewGRFVariable(const ResolverObject *object, byte variable, byte parameter, bool *available) const
00377 {
00378 switch (variable) {
00379 case 0x48: {
00380 CargoID cargo_type;
00381 uint32 value = 0;
00382
00383 for (cargo_type = 0; cargo_type < NUM_CARGO; cargo_type++) {
00384 if (HasBit(this->goods[cargo_type].acceptance_pickup, GoodsEntry::PICKUP)) SetBit(value, cargo_type);
00385 }
00386 return value;
00387 }
00388
00389 case 0x8A: return this->had_vehicle_of_type;
00390 case 0xF1: return (this->airport.tile != INVALID_TILE) ? this->airport.GetSpec()->ttd_airport_type : ATP_TTDP_LARGE;
00391 case 0xF2: return (this->truck_stops != NULL) ? this->truck_stops->status : 0;
00392 case 0xF3: return (this->bus_stops != NULL) ? this->bus_stops->status : 0;
00393 case 0xF6: return this->airport.flags;
00394 case 0xF7: return GB(this->airport.flags, 8, 8);
00395 }
00396
00397
00398 if (variable >= 0x60 && variable <= 0x65) {
00399 CargoID c = GetCargoTranslation(parameter, object->u.station.statspec->grf_prop.grffile);
00400
00401 if (c == CT_INVALID) return 0;
00402 const GoodsEntry *ge = &this->goods[c];
00403
00404 switch (variable) {
00405 case 0x60: return min(ge->cargo.Count(), 4095);
00406 case 0x61: return ge->days_since_pickup;
00407 case 0x62: return ge->rating;
00408 case 0x63: return ge->cargo.DaysInTransit();
00409 case 0x64: return ge->last_speed | (ge->last_age << 8);
00410 case 0x65: return GB(ge->acceptance_pickup, GoodsEntry::ACCEPTANCE, 1) << 3;
00411 }
00412 }
00413
00414
00415 if (variable >= 0x8C && variable <= 0xEC) {
00416 const GoodsEntry *g = &this->goods[GB(variable - 0x8C, 3, 4)];
00417 switch (GB(variable - 0x8C, 0, 3)) {
00418 case 0: return g->cargo.Count();
00419 case 1: return GB(min(g->cargo.Count(), 4095), 0, 4) | (GB(g->acceptance_pickup, GoodsEntry::ACCEPTANCE, 1) << 7);
00420 case 2: return g->days_since_pickup;
00421 case 3: return g->rating;
00422 case 4: return g->cargo.Source();
00423 case 5: return g->cargo.DaysInTransit();
00424 case 6: return g->last_speed;
00425 case 7: return g->last_age;
00426 }
00427 }
00428
00429 DEBUG(grf, 1, "Unhandled station variable 0x%X", variable);
00430
00431 *available = false;
00432 return UINT_MAX;
00433 }
00434
00435 uint32 Waypoint::GetNewGRFVariable(const ResolverObject *object, byte variable, byte parameter, bool *available) const
00436 {
00437 switch (variable) {
00438 case 0x48: return 0;
00439 case 0x8A: return HVOT_WAYPOINT;
00440 case 0xF1: return 0;
00441 case 0xF2: return 0;
00442 case 0xF3: return 0;
00443 case 0xF6: return 0;
00444 case 0xF7: return 0;
00445 }
00446
00447
00448 if (variable >= 0x60 && variable <= 0x65) {
00449 return 0;
00450 }
00451
00452
00453 if (variable >= 0x8C && variable <= 0xEC) {
00454 switch (GB(variable - 0x8C, 0, 3)) {
00455 case 3: return INITIAL_STATION_RATING;
00456 case 4: return INVALID_STATION;
00457 default: return 0;
00458 }
00459 }
00460
00461 DEBUG(grf, 1, "Unhandled station variable 0x%X", variable);
00462
00463 *available = false;
00464 return UINT_MAX;
00465 }
00466
00467 static const SpriteGroup *StationResolveReal(const ResolverObject *object, const RealSpriteGroup *group)
00468 {
00469 const BaseStation *bst = object->u.station.st;
00470 const StationSpec *statspec = object->u.station.statspec;
00471 uint set;
00472
00473 uint cargo = 0;
00474 CargoID cargo_type = object->u.station.cargo_type;
00475
00476 if (bst == NULL || statspec->cls_id == STAT_CLASS_WAYP) {
00477 return group->loading[0];
00478 }
00479
00480 const Station *st = Station::From(bst);
00481
00482 switch (cargo_type) {
00483 case CT_INVALID:
00484 case CT_DEFAULT_NA:
00485 case CT_PURCHASE:
00486 cargo = 0;
00487 break;
00488
00489 case CT_DEFAULT:
00490 for (cargo_type = 0; cargo_type < NUM_CARGO; cargo_type++) {
00491 cargo += st->goods[cargo_type].cargo.Count();
00492 }
00493 break;
00494
00495 default:
00496 cargo = st->goods[cargo_type].cargo.Count();
00497 break;
00498 }
00499
00500 if (HasBit(statspec->flags, SSF_DIV_BY_STATION_SIZE)) cargo /= (st->train_station.w + st->train_station.h);
00501 cargo = min(0xfff, cargo);
00502
00503 if (cargo > statspec->cargo_threshold) {
00504 if (group->num_loading > 0) {
00505 set = ((cargo - statspec->cargo_threshold) * group->num_loading) / (4096 - statspec->cargo_threshold);
00506 return group->loading[set];
00507 }
00508 } else {
00509 if (group->num_loaded > 0) {
00510 set = (cargo * group->num_loaded) / (statspec->cargo_threshold + 1);
00511 return group->loaded[set];
00512 }
00513 }
00514
00515 return group->loading[0];
00516 }
00517
00518
00519 static void NewStationResolver(ResolverObject *res, const StationSpec *statspec, const BaseStation *st, TileIndex tile)
00520 {
00521 res->GetRandomBits = StationGetRandomBits;
00522 res->GetTriggers = StationGetTriggers;
00523 res->SetTriggers = StationSetTriggers;
00524 res->GetVariable = StationGetVariable;
00525 res->ResolveReal = StationResolveReal;
00526
00527 res->u.station.st = st;
00528 res->u.station.statspec = statspec;
00529 res->u.station.tile = tile;
00530
00531 res->callback = CBID_NO_CALLBACK;
00532 res->callback_param1 = 0;
00533 res->callback_param2 = 0;
00534 res->ResetState();
00535
00536 res->grffile = (statspec != NULL ? statspec->grf_prop.grffile : NULL);
00537 }
00538
00539 static const SpriteGroup *ResolveStation(ResolverObject *object)
00540 {
00541 const SpriteGroup *group;
00542 CargoID ctype = CT_DEFAULT_NA;
00543
00544 if (object->u.station.st == NULL) {
00545
00546 ctype = CT_PURCHASE;
00547 } else if (Station::IsExpected(object->u.station.st)) {
00548 const Station *st = Station::From(object->u.station.st);
00549
00550 const CargoSpec *cs;
00551 FOR_ALL_CARGOSPECS(cs) {
00552 if (object->u.station.statspec->grf_prop.spritegroup[cs->Index()] != NULL &&
00553 !st->goods[cs->Index()].cargo.Empty()) {
00554 ctype = cs->Index();
00555 break;
00556 }
00557 }
00558 }
00559
00560 group = object->u.station.statspec->grf_prop.spritegroup[ctype];
00561 if (group == NULL) {
00562 ctype = CT_DEFAULT;
00563 group = object->u.station.statspec->grf_prop.spritegroup[ctype];
00564 }
00565
00566 if (group == NULL) return NULL;
00567
00568
00569 object->u.station.cargo_type = ctype;
00570
00571
00572 _svc.valid = 0;
00573
00574 return SpriteGroup::Resolve(group, object);
00575 }
00576
00577 SpriteID GetCustomStationRelocation(const StationSpec *statspec, const BaseStation *st, TileIndex tile)
00578 {
00579 const SpriteGroup *group;
00580 ResolverObject object;
00581
00582 NewStationResolver(&object, statspec, st, tile);
00583
00584 group = ResolveStation(&object);
00585 if (group == NULL || group->type != SGT_RESULT) return 0;
00586 return group->GetResult() - 0x42D;
00587 }
00588
00589
00590 SpriteID GetCustomStationGroundRelocation(const StationSpec *statspec, const BaseStation *st, TileIndex tile)
00591 {
00592 const SpriteGroup *group;
00593 ResolverObject object;
00594
00595 NewStationResolver(&object, statspec, st, tile);
00596 if (HasBit(statspec->flags, SSF_SEPARATE_GROUND)) {
00597 object.callback_param1 = 1;
00598 }
00599
00600 group = ResolveStation(&object);
00601 if (group == NULL || group->type != SGT_RESULT) return 0;
00602 return group->GetResult() - 0x42D;
00603 }
00604
00605
00606 SpriteID GetCustomStationFoundationRelocation(const StationSpec *statspec, const BaseStation *st, TileIndex tile)
00607 {
00608 const SpriteGroup *group;
00609 ResolverObject object;
00610
00611 NewStationResolver(&object, statspec, st, tile);
00612 object.callback_param1 = 2;
00613
00614 ClearRegister(0x100);
00615 group = ResolveStation(&object);
00616 if (group == NULL || group->type != SGT_RESULT) return 0;
00617 return group->GetResult() + GetRegister(0x100);
00618 }
00619
00620
00621 uint16 GetStationCallback(CallbackID callback, uint32 param1, uint32 param2, const StationSpec *statspec, const BaseStation *st, TileIndex tile)
00622 {
00623 const SpriteGroup *group;
00624 ResolverObject object;
00625
00626 NewStationResolver(&object, statspec, st, tile);
00627
00628 object.callback = callback;
00629 object.callback_param1 = param1;
00630 object.callback_param2 = param2;
00631
00632 group = ResolveStation(&object);
00633 if (group == NULL) return CALLBACK_FAILED;
00634 return group->GetCallbackResult();
00635 }
00636
00637
00645 int AllocateSpecToStation(const StationSpec *statspec, BaseStation *st, bool exec)
00646 {
00647 uint i;
00648
00649 if (statspec == NULL || st == NULL) return 0;
00650
00651 for (i = 1; i < st->num_specs && i < MAX_SPECLIST; i++) {
00652 if (st->speclist[i].spec == NULL && st->speclist[i].grfid == 0) break;
00653 }
00654
00655 if (i == MAX_SPECLIST) {
00656
00657
00658
00659
00660
00661 for (i = 1; i < st->num_specs && i < MAX_SPECLIST; i++) {
00662 if (st->speclist[i].spec == statspec) return i;
00663 }
00664
00665 return -1;
00666 }
00667
00668 if (exec) {
00669 if (i >= st->num_specs) {
00670 st->num_specs = i + 1;
00671 st->speclist = ReallocT(st->speclist, st->num_specs);
00672
00673 if (st->num_specs == 2) {
00674
00675 st->speclist[0].spec = NULL;
00676 st->speclist[0].grfid = 0;
00677 st->speclist[0].localidx = 0;
00678 }
00679 }
00680
00681 st->speclist[i].spec = statspec;
00682 st->speclist[i].grfid = statspec->grf_prop.grffile->grfid;
00683 st->speclist[i].localidx = statspec->grf_prop.local_id;
00684 }
00685
00686 return i;
00687 }
00688
00689
00696 void DeallocateSpecFromStation(BaseStation *st, byte specindex)
00697 {
00698
00699 if (specindex == 0) return;
00700
00701 ETileArea area = ETileArea(st, INVALID_TILE, TA_WHOLE);
00702
00703 TILE_AREA_LOOP(tile, area) {
00704 if (st->TileBelongsToRailStation(tile) && GetCustomStationSpecIndex(tile) == specindex) {
00705 return;
00706 }
00707 }
00708
00709
00710 st->speclist[specindex].spec = NULL;
00711 st->speclist[specindex].grfid = 0;
00712 st->speclist[specindex].localidx = 0;
00713
00714
00715 if (specindex == st->num_specs - 1) {
00716 for (; st->speclist[st->num_specs - 1].grfid == 0 && st->num_specs > 1; st->num_specs--) {}
00717
00718 if (st->num_specs > 1) {
00719 st->speclist = ReallocT(st->speclist, st->num_specs);
00720 } else {
00721 free(st->speclist);
00722 st->num_specs = 0;
00723 st->speclist = NULL;
00724 st->cached_anim_triggers = 0;
00725 return;
00726 }
00727 }
00728
00729 StationUpdateAnimTriggers(st);
00730 }
00731
00742 bool DrawStationTile(int x, int y, RailType railtype, Axis axis, StationClassID sclass, uint station)
00743 {
00744 const StationSpec *statspec;
00745 const DrawTileSprites *sprites;
00746 const RailtypeInfo *rti = GetRailTypeInfo(railtype);
00747 PaletteID palette = COMPANY_SPRITE_COLOUR(_local_company);
00748 uint tile = 2;
00749
00750 statspec = StationClass::Get(sclass, station);
00751 if (statspec == NULL) return false;
00752
00753 uint relocation = GetCustomStationRelocation(statspec, NULL, INVALID_TILE);
00754
00755 if (HasBit(statspec->callback_mask, CBM_STATION_SPRITE_LAYOUT)) {
00756 uint16 callback = GetStationCallback(CBID_STATION_SPRITE_LAYOUT, 0x2110000, 0, statspec, NULL, INVALID_TILE);
00757 if (callback != CALLBACK_FAILED) tile = callback;
00758 }
00759
00760 if (statspec->renderdata == NULL) {
00761 sprites = GetStationTileLayout(STATION_RAIL, tile + axis);
00762 } else {
00763 sprites = &statspec->renderdata[(tile < statspec->tiles) ? tile + axis : (uint)axis];
00764 }
00765
00766 SpriteID image = sprites->ground.sprite;
00767 PaletteID pal = sprites->ground.pal;
00768 if (HasBit(image, SPRITE_MODIFIER_CUSTOM_SPRITE)) {
00769 image += GetCustomStationGroundRelocation(statspec, NULL, INVALID_TILE);
00770 image += rti->fallback_railtype;
00771 } else {
00772 image += rti->GetRailtypeSpriteOffset();
00773 }
00774
00775 DrawSprite(image, GroundSpritePaletteTransform(image, pal, palette), x, y);
00776
00777 DrawRailTileSeqInGUI(x, y, sprites, rti->GetRailtypeSpriteOffset(), relocation, palette);
00778
00779 return true;
00780 }
00781
00782
00783 const StationSpec *GetStationSpec(TileIndex t)
00784 {
00785 if (!IsCustomStationSpecIndex(t)) return NULL;
00786
00787 const BaseStation *st = BaseStation::GetByTile(t);
00788 uint specindex = GetCustomStationSpecIndex(t);
00789 return specindex < st->num_specs ? st->speclist[specindex].spec : NULL;
00790 }
00791
00792
00799 bool IsStationTileBlocked(TileIndex tile)
00800 {
00801 const StationSpec *statspec = GetStationSpec(tile);
00802
00803 return statspec != NULL && HasBit(statspec->blocked, GetStationGfx(tile));
00804 }
00805
00812 bool IsStationTileElectrifiable(TileIndex tile)
00813 {
00814 const StationSpec *statspec = GetStationSpec(tile);
00815
00816 return statspec == NULL ||
00817 HasBit(statspec->pylons, GetStationGfx(tile)) ||
00818 !HasBit(statspec->wires, GetStationGfx(tile));
00819 }
00820
00822 struct StationAnimationBase : public AnimationBase<StationAnimationBase, StationSpec, BaseStation, GetStationCallback> {
00823 static const CallbackID cb_animation_speed = CBID_STATION_ANIMATION_SPEED;
00824 static const CallbackID cb_animation_next_frame = CBID_STATION_ANIM_NEXT_FRAME;
00825
00826 static const StationCallbackMask cbm_animation_speed = CBM_STATION_ANIMATION_SPEED;
00827 static const StationCallbackMask cbm_animation_next_frame = CBM_STATION_ANIMATION_NEXT_FRAME;
00828 };
00829
00830 void AnimateStationTile(TileIndex tile)
00831 {
00832 const StationSpec *ss = GetStationSpec(tile);
00833 if (ss == NULL) return;
00834
00835 StationAnimationBase::AnimateTile(ss, BaseStation::GetByTile(tile), tile, HasBit(ss->flags, SSF_CB141_RANDOM_BITS));
00836 }
00837
00838 void TriggerStationAnimation(const BaseStation *st, TileIndex tile, StationAnimationTrigger trigger, CargoID cargo_type)
00839 {
00840
00841 static const TriggerArea tas[] = {
00842 TA_TILE, TA_WHOLE, TA_WHOLE, TA_PLATFORM, TA_PLATFORM, TA_PLATFORM, TA_WHOLE
00843 };
00844
00845
00846 if (st == NULL) st = BaseStation::GetByTile(tile);
00847
00848
00849
00850 if (!HasBit(st->cached_anim_triggers, trigger)) return;
00851
00852 uint16 random_bits = Random();
00853 ETileArea area = ETileArea(st, tile, tas[trigger]);
00854
00855
00856 TILE_AREA_LOOP(tile, area) {
00857 if (st->TileBelongsToRailStation(tile)) {
00858 const StationSpec *ss = GetStationSpec(tile);
00859 if (ss != NULL && HasBit(ss->animation.triggers, trigger)) {
00860 CargoID cargo;
00861 if (cargo_type == CT_INVALID) {
00862 cargo = CT_INVALID;
00863 } else {
00864 cargo = GetReverseCargoTranslation(cargo_type, ss->grf_prop.grffile);
00865 }
00866 StationAnimationBase::ChangeAnimationFrame(CBID_STATION_ANIM_START_STOP, ss, st, tile, (random_bits << 16) | Random(), (uint8)trigger | (cargo << 8));
00867 }
00868 }
00869 }
00870 }
00871
00876 void StationUpdateAnimTriggers(BaseStation *st)
00877 {
00878 st->cached_anim_triggers = 0;
00879
00880
00881
00882 for (uint i = 0; i < st->num_specs; i++) {
00883 const StationSpec *ss = st->speclist[i].spec;
00884 if (ss != NULL) st->cached_anim_triggers |= ss->animation.triggers;
00885 }
00886 }
00887
00893 void GetStationResolver(ResolverObject *ro, uint index)
00894 {
00895 NewStationResolver(ro, GetStationSpec(index), Station::GetByTile(index), index);
00896 }