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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_animation_base.h"
00027 #include "newgrf_class_func.h"
00028
00029
00030 template <typename Tspec, typename Tid, Tid Tmax>
00031 void NewGRFClass<Tspec, Tid, Tmax>::InsertDefaults()
00032 {
00033
00034 classes[0].global_id = 'DFLT';
00035 classes[0].name = STR_STATION_CLASS_DFLT;
00036 classes[0].Insert(NULL);
00037
00038 classes[1].global_id = 'WAYP';
00039 classes[1].name = STR_STATION_CLASS_WAYP;
00040 classes[1].Insert(NULL);
00041 }
00042
00043 template <typename Tspec, typename Tid, Tid Tmax>
00044 bool NewGRFClass<Tspec, Tid, Tmax>::IsUIAvailable(uint index) const
00045 {
00046 return true;
00047 }
00048
00049 INSTANTIATE_NEWGRF_CLASS_METHODS(StationClass, StationSpec, StationClassID, STAT_CLASS_MAX)
00050
00051 static const uint MAX_SPECLIST = 255;
00052
00053 enum TriggerArea {
00054 TA_TILE,
00055 TA_PLATFORM,
00056 TA_WHOLE,
00057 };
00058
00059 struct ETileArea : TileArea {
00060 ETileArea(const BaseStation *st, TileIndex tile, TriggerArea ta)
00061 {
00062 switch (ta) {
00063 default: NOT_REACHED();
00064
00065 case TA_TILE:
00066 this->tile = tile;
00067 this->w = 1;
00068 this->h = 1;
00069 break;
00070
00071 case TA_PLATFORM: {
00072 TileIndex start, end;
00073 Axis axis = GetRailStationAxis(tile);
00074 TileIndexDiff delta = TileOffsByDiagDir(AxisToDiagDir(axis));
00075
00076 for (end = tile; IsRailStationTile(end + delta) && IsCompatibleTrainStationTile(tile, end + delta); end += delta) { }
00077 for (start = tile; IsRailStationTile(start - delta) && IsCompatibleTrainStationTile(tile, start - delta); start -= delta) { }
00078
00079 this->tile = start;
00080 this->w = TileX(end) - TileX(start) + 1;
00081 this->h = TileY(end) - TileY(start) + 1;
00082 break;
00083 }
00084
00085 case TA_WHOLE:
00086 st->GetTileArea(this, Station::IsExpected(st) ? STATION_RAIL : STATION_WAYPOINT);
00087 break;
00088 }
00089 }
00090 };
00091
00092
00105 uint32 GetPlatformInfo(Axis axis, byte tile, int platforms, int length, int x, int y, bool centred)
00106 {
00107 uint32 retval = 0;
00108
00109 if (axis == AXIS_X) {
00110 Swap(platforms, length);
00111 Swap(x, y);
00112 }
00113
00114 if (centred) {
00115 x -= platforms / 2;
00116 y -= length / 2;
00117 x = Clamp(x, -8, 7);
00118 y = Clamp(y, -8, 7);
00119 SB(retval, 0, 4, y & 0xF);
00120 SB(retval, 4, 4, x & 0xF);
00121 } else {
00122 SB(retval, 0, 4, min(15, y));
00123 SB(retval, 4, 4, min(15, length - y - 1));
00124 SB(retval, 8, 4, min(15, x));
00125 SB(retval, 12, 4, min(15, platforms - x - 1));
00126 }
00127 SB(retval, 16, 4, min(15, length));
00128 SB(retval, 20, 4, min(15, platforms));
00129 SB(retval, 24, 4, tile);
00130
00131 return retval;
00132 }
00133
00134
00143 static TileIndex FindRailStationEnd(TileIndex tile, TileIndexDiff delta, bool check_type, bool check_axis)
00144 {
00145 byte orig_type = 0;
00146 Axis orig_axis = AXIS_X;
00147 StationID sid = GetStationIndex(tile);
00148
00149 if (check_type) orig_type = GetCustomStationSpecIndex(tile);
00150 if (check_axis) orig_axis = GetRailStationAxis(tile);
00151
00152 for (;;) {
00153 TileIndex new_tile = TILE_ADD(tile, delta);
00154
00155 if (!IsTileType(new_tile, MP_STATION) || GetStationIndex(new_tile) != sid) break;
00156 if (!HasStationRail(new_tile)) break;
00157 if (check_type && GetCustomStationSpecIndex(new_tile) != orig_type) break;
00158 if (check_axis && GetRailStationAxis(new_tile) != orig_axis) break;
00159
00160 tile = new_tile;
00161 }
00162 return tile;
00163 }
00164
00165
00166 static uint32 GetPlatformInfoHelper(TileIndex tile, bool check_type, bool check_axis, bool centred)
00167 {
00168 int tx = TileX(tile);
00169 int ty = TileY(tile);
00170 int sx = TileX(FindRailStationEnd(tile, TileDiffXY(-1, 0), check_type, check_axis));
00171 int sy = TileY(FindRailStationEnd(tile, TileDiffXY( 0, -1), check_type, check_axis));
00172 int ex = TileX(FindRailStationEnd(tile, TileDiffXY( 1, 0), check_type, check_axis)) + 1;
00173 int ey = TileY(FindRailStationEnd(tile, TileDiffXY( 0, 1), check_type, check_axis)) + 1;
00174
00175 tx -= sx; ex -= sx;
00176 ty -= sy; ey -= sy;
00177
00178 return GetPlatformInfo(GetRailStationAxis(tile), GetStationGfx(tile), ex, ey, tx, ty, centred);
00179 }
00180
00181
00182 static uint32 GetRailContinuationInfo(TileIndex tile)
00183 {
00184
00185 static const Direction x_dir[8] = { DIR_SW, DIR_NE, DIR_SE, DIR_NW, DIR_S, DIR_E, DIR_W, DIR_N };
00186 static const DiagDirection x_exits[8] = { DIAGDIR_SW, DIAGDIR_NE, DIAGDIR_SE, DIAGDIR_NW, DIAGDIR_SW, DIAGDIR_NE, DIAGDIR_SW, DIAGDIR_NE };
00187
00188
00189 static const Direction y_dir[8] = { DIR_SE, DIR_NW, DIR_SW, DIR_NE, DIR_S, DIR_W, DIR_E, DIR_N };
00190 static const DiagDirection y_exits[8] = { DIAGDIR_SE, DIAGDIR_NW, DIAGDIR_SW, DIAGDIR_NE, DIAGDIR_SE, DIAGDIR_NW, DIAGDIR_SE, DIAGDIR_NW };
00191
00192 Axis axis = GetRailStationAxis(tile);
00193
00194
00195 const Direction *dir = axis == AXIS_X ? x_dir : y_dir;
00196 const DiagDirection *diagdir = axis == AXIS_X ? x_exits : y_exits;
00197
00198 uint32 res = 0;
00199 uint i;
00200
00201 for (i = 0; i < lengthof(x_dir); i++, dir++, diagdir++) {
00202 TileIndex neighbour_tile = tile + TileOffsByDir(*dir);
00203 TrackBits trackbits = TrackStatusToTrackBits(GetTileTrackStatus(neighbour_tile, TRANSPORT_RAIL, 0));
00204 if (trackbits != TRACK_BIT_NONE) {
00205
00206 SetBit(res, i + 8);
00207
00208
00209
00210 if (IsTileType(neighbour_tile, MP_TUNNELBRIDGE) && GetTunnelBridgeDirection(neighbour_tile) != *diagdir) {
00211 continue;
00212 }
00213
00214
00215 if (trackbits & DiagdirReachesTracks(*diagdir)) SetBit(res, i);
00216 }
00217 }
00218
00219 return res;
00220 }
00221
00222
00223
00224 static uint32 StationGetRandomBits(const ResolverObject *object)
00225 {
00226 const BaseStation *st = object->u.station.st;
00227 const TileIndex tile = object->u.station.tile;
00228 return (st == NULL ? 0 : st->random_bits) | (tile == INVALID_TILE ? 0 : GetStationTileRandomBits(tile) << 16);
00229 }
00230
00231
00232 static uint32 StationGetTriggers(const ResolverObject *object)
00233 {
00234 const BaseStation *st = object->u.station.st;
00235 return st == NULL ? 0 : st->waiting_triggers;
00236 }
00237
00238
00239 static void StationSetTriggers(const ResolverObject *object, int triggers)
00240 {
00241 BaseStation *st = const_cast<BaseStation *>(object->u.station.st);
00242 assert(st != NULL);
00243 st->waiting_triggers = triggers;
00244 }
00245
00251 static struct {
00252 uint32 v40;
00253 uint32 v41;
00254 uint32 v45;
00255 uint32 v46;
00256 uint32 v47;
00257 uint32 v49;
00258 uint8 valid;
00259 } _svc;
00260
00261 static uint32 StationGetVariable(const ResolverObject *object, byte variable, uint32 parameter, bool *available)
00262 {
00263 const BaseStation *st = object->u.station.st;
00264 TileIndex tile = object->u.station.tile;
00265
00266 if (object->scope == VSG_SCOPE_PARENT) {
00267
00268 Town *t;
00269
00270 if (st != NULL) {
00271 t = st->town;
00272 } else if (tile != INVALID_TILE) {
00273 t = ClosestTownFromTile(tile, UINT_MAX);
00274 } else {
00275 *available = false;
00276 return UINT_MAX;
00277 }
00278
00279 return TownGetVariable(variable, parameter, available, t, object->grffile);
00280 }
00281
00282 if (st == NULL) {
00283
00284 switch (variable) {
00285 case 0x40:
00286 case 0x41:
00287 case 0x46:
00288 case 0x47:
00289 case 0x49: return 0x2110000;
00290 case 0x42: return 0;
00291 case 0x43: return GetCompanyInfo(_current_company);
00292 case 0x44: return 2;
00293 case 0x67:
00294 if (object->u.station.axis != INVALID_AXIS && tile != INVALID_TILE) {
00295 if (parameter != 0) tile = GetNearbyTile(parameter, tile, true, object->u.station.axis);
00296
00297 Slope tileh = GetTileSlope(tile);
00298 bool swap = (object->u.station.axis == AXIS_Y && HasBit(tileh, CORNER_W) != HasBit(tileh, CORNER_E));
00299
00300 return GetNearbyTileInformation(tile, object->grffile->grf_version >= 8) ^ (swap ? SLOPE_EW : 0);
00301 }
00302 break;
00303
00304 case 0xFA: return Clamp(_date - DAYS_TILL_ORIGINAL_BASE_YEAR, 0, 65535);
00305 }
00306
00307 *available = false;
00308 return UINT_MAX;
00309 }
00310
00311 switch (variable) {
00312
00313 case 0x40:
00314 if (!HasBit(_svc.valid, 0)) { _svc.v40 = GetPlatformInfoHelper(tile, false, false, false); SetBit(_svc.valid, 0); }
00315 return _svc.v40;
00316
00317 case 0x41:
00318 if (!HasBit(_svc.valid, 1)) { _svc.v41 = GetPlatformInfoHelper(tile, true, false, false); SetBit(_svc.valid, 1); }
00319 return _svc.v41;
00320
00321 case 0x42: return GetTerrainType(tile) | (GetReverseRailTypeTranslation(GetRailType(tile), object->u.station.statspec->grf_prop.grffile) << 8);
00322 case 0x43: return GetCompanyInfo(st->owner);
00323 case 0x44: return HasStationReservation(tile) ? 7 : 4;
00324 case 0x45:
00325 if (!HasBit(_svc.valid, 2)) { _svc.v45 = GetRailContinuationInfo(tile); SetBit(_svc.valid, 2); }
00326 return _svc.v45;
00327
00328 case 0x46:
00329 if (!HasBit(_svc.valid, 3)) { _svc.v46 = GetPlatformInfoHelper(tile, false, false, true); SetBit(_svc.valid, 3); }
00330 return _svc.v46;
00331
00332 case 0x47:
00333 if (!HasBit(_svc.valid, 4)) { _svc.v47 = GetPlatformInfoHelper(tile, true, false, true); SetBit(_svc.valid, 4); }
00334 return _svc.v47;
00335
00336 case 0x49:
00337 if (!HasBit(_svc.valid, 5)) { _svc.v49 = GetPlatformInfoHelper(tile, false, true, false); SetBit(_svc.valid, 5); }
00338 return _svc.v49;
00339
00340 case 0x4A:
00341 return GetAnimationFrame(tile);
00342
00343
00344
00345 case 0x66:
00346 if (parameter != 0) tile = GetNearbyTile(parameter, tile);
00347 return st->TileBelongsToRailStation(tile) ? GetAnimationFrame(tile) : UINT_MAX;
00348
00349 case 0x67: {
00350 Axis axis = GetRailStationAxis(tile);
00351
00352 if (parameter != 0) tile = GetNearbyTile(parameter, tile);
00353
00354 Slope tileh = GetTileSlope(tile);
00355 bool swap = (axis == AXIS_Y && HasBit(tileh, CORNER_W) != HasBit(tileh, CORNER_E));
00356
00357 return GetNearbyTileInformation(tile, object->grffile->grf_version >= 8) ^ (swap ? SLOPE_EW : 0);
00358 }
00359
00360 case 0x68: {
00361 TileIndex nearby_tile = GetNearbyTile(parameter, tile);
00362
00363 if (!HasStationTileRail(nearby_tile)) return 0xFFFFFFFF;
00364
00365 uint32 grfid = st->speclist[GetCustomStationSpecIndex(tile)].grfid;
00366 bool perpendicular = GetRailStationAxis(tile) != GetRailStationAxis(nearby_tile);
00367 bool same_station = st->TileBelongsToRailStation(nearby_tile);
00368 uint32 res = GB(GetStationGfx(nearby_tile), 1, 2) << 12 | !!perpendicular << 11 | !!same_station << 10;
00369
00370 if (IsCustomStationSpecIndex(nearby_tile)) {
00371 const StationSpecList ssl = BaseStation::GetByTile(nearby_tile)->speclist[GetCustomStationSpecIndex(nearby_tile)];
00372 res |= 1 << (ssl.grfid != grfid ? 9 : 8) | ssl.localidx;
00373 }
00374 return res;
00375 }
00376
00377
00378 case 0x82: return 50;
00379 case 0x84: return st->string_id;
00380 case 0x86: return 0;
00381 case 0xF0: return st->facilities;
00382 case 0xFA: return Clamp(st->build_date - DAYS_TILL_ORIGINAL_BASE_YEAR, 0, 65535);
00383 }
00384
00385 return st->GetNewGRFVariable(object, variable, parameter, available);
00386 }
00387
00388 uint32 Station::GetNewGRFVariable(const ResolverObject *object, byte variable, byte parameter, bool *available) const
00389 {
00390 switch (variable) {
00391 case 0x48: {
00392 CargoID cargo_type;
00393 uint32 value = 0;
00394
00395 for (cargo_type = 0; cargo_type < NUM_CARGO; cargo_type++) {
00396 if (HasBit(this->goods[cargo_type].acceptance_pickup, GoodsEntry::GES_PICKUP)) SetBit(value, cargo_type);
00397 }
00398 return value;
00399 }
00400
00401 case 0x8A: return this->had_vehicle_of_type;
00402 case 0xF1: return (this->airport.tile != INVALID_TILE) ? this->airport.GetSpec()->ttd_airport_type : ATP_TTDP_LARGE;
00403 case 0xF2: return (this->truck_stops != NULL) ? this->truck_stops->status : 0;
00404 case 0xF3: return (this->bus_stops != NULL) ? this->bus_stops->status : 0;
00405 case 0xF6: return this->airport.flags;
00406 case 0xF7: return GB(this->airport.flags, 8, 8);
00407 }
00408
00409
00410 if ((variable >= 0x60 && variable <= 0x65) || variable == 0x69) {
00411 CargoID c = GetCargoTranslation(parameter, object->grffile);
00412
00413 if (c == CT_INVALID) return 0;
00414 const GoodsEntry *ge = &this->goods[c];
00415
00416 switch (variable) {
00417 case 0x60: return min(ge->cargo.Count(), 4095);
00418 case 0x61: return ge->days_since_pickup;
00419 case 0x62: return ge->rating;
00420 case 0x63: return ge->cargo.DaysInTransit();
00421 case 0x64: return ge->last_speed | (ge->last_age << 8);
00422 case 0x65: return GB(ge->acceptance_pickup, GoodsEntry::GES_ACCEPTANCE, 1) << 3;
00423 case 0x69: return GB(ge->acceptance_pickup, GoodsEntry::GES_EVER_ACCEPTED, 4);
00424 }
00425 }
00426
00427
00428 if (variable >= 0x8C && variable <= 0xEC) {
00429 const GoodsEntry *g = &this->goods[GB(variable - 0x8C, 3, 4)];
00430 switch (GB(variable - 0x8C, 0, 3)) {
00431 case 0: return g->cargo.Count();
00432 case 1: return GB(min(g->cargo.Count(), 4095), 0, 4) | (GB(g->acceptance_pickup, GoodsEntry::GES_ACCEPTANCE, 1) << 7);
00433 case 2: return g->days_since_pickup;
00434 case 3: return g->rating;
00435 case 4: return g->cargo.Source();
00436 case 5: return g->cargo.DaysInTransit();
00437 case 6: return g->last_speed;
00438 case 7: return g->last_age;
00439 }
00440 }
00441
00442 DEBUG(grf, 1, "Unhandled station variable 0x%X", variable);
00443
00444 *available = false;
00445 return UINT_MAX;
00446 }
00447
00448 uint32 Waypoint::GetNewGRFVariable(const ResolverObject *object, byte variable, byte parameter, bool *available) const
00449 {
00450 switch (variable) {
00451 case 0x48: return 0;
00452 case 0x8A: return HVOT_WAYPOINT;
00453 case 0xF1: return 0;
00454 case 0xF2: return 0;
00455 case 0xF3: return 0;
00456 case 0xF6: return 0;
00457 case 0xF7: return 0;
00458 }
00459
00460
00461 if (variable >= 0x60 && variable <= 0x65) {
00462 return 0;
00463 }
00464
00465
00466 if (variable >= 0x8C && variable <= 0xEC) {
00467 switch (GB(variable - 0x8C, 0, 3)) {
00468 case 3: return INITIAL_STATION_RATING;
00469 case 4: return INVALID_STATION;
00470 default: return 0;
00471 }
00472 }
00473
00474 DEBUG(grf, 1, "Unhandled station variable 0x%X", variable);
00475
00476 *available = false;
00477 return UINT_MAX;
00478 }
00479
00480 static const SpriteGroup *StationResolveReal(const ResolverObject *object, const RealSpriteGroup *group)
00481 {
00482 const BaseStation *bst = object->u.station.st;
00483 const StationSpec *statspec = object->u.station.statspec;
00484 uint set;
00485
00486 uint cargo = 0;
00487 CargoID cargo_type = object->u.station.cargo_type;
00488
00489 if (bst == NULL || statspec->cls_id == STAT_CLASS_WAYP) {
00490 return group->loading[0];
00491 }
00492
00493 const Station *st = Station::From(bst);
00494
00495 switch (cargo_type) {
00496 case CT_INVALID:
00497 case CT_DEFAULT_NA:
00498 case CT_PURCHASE:
00499 cargo = 0;
00500 break;
00501
00502 case CT_DEFAULT:
00503 for (cargo_type = 0; cargo_type < NUM_CARGO; cargo_type++) {
00504 cargo += st->goods[cargo_type].cargo.Count();
00505 }
00506 break;
00507
00508 default:
00509 cargo = st->goods[cargo_type].cargo.Count();
00510 break;
00511 }
00512
00513 if (HasBit(statspec->flags, SSF_DIV_BY_STATION_SIZE)) cargo /= (st->train_station.w + st->train_station.h);
00514 cargo = min(0xfff, cargo);
00515
00516 if (cargo > statspec->cargo_threshold) {
00517 if (group->num_loading > 0) {
00518 set = ((cargo - statspec->cargo_threshold) * group->num_loading) / (4096 - statspec->cargo_threshold);
00519 return group->loading[set];
00520 }
00521 } else {
00522 if (group->num_loaded > 0) {
00523 set = (cargo * group->num_loaded) / (statspec->cargo_threshold + 1);
00524 return group->loaded[set];
00525 }
00526 }
00527
00528 return group->loading[0];
00529 }
00530
00531
00538 void StationStorePSA(ResolverObject *object, uint pos, int32 value)
00539 {
00540
00541 BaseStation *st = object->u.station.st;
00542 if (object->scope != VSG_SCOPE_PARENT || st == NULL) return;
00543
00544 TownStorePSA(st->town, object->grffile, pos, value);
00545 }
00546
00547 static void NewStationResolver(ResolverObject *res, const StationSpec *statspec, BaseStation *st, TileIndex tile)
00548 {
00549 res->GetRandomBits = StationGetRandomBits;
00550 res->GetTriggers = StationGetTriggers;
00551 res->SetTriggers = StationSetTriggers;
00552 res->GetVariable = StationGetVariable;
00553 res->ResolveReal = StationResolveReal;
00554 res->StorePSA = StationStorePSA;
00555
00556 res->u.station.st = st;
00557 res->u.station.statspec = statspec;
00558 res->u.station.tile = tile;
00559 res->u.station.axis = INVALID_AXIS;
00560
00561 res->callback = CBID_NO_CALLBACK;
00562 res->callback_param1 = 0;
00563 res->callback_param2 = 0;
00564 res->ResetState();
00565
00566 res->grffile = (statspec != NULL ? statspec->grf_prop.grffile : NULL);
00567
00568
00569 _svc.valid = 0;
00570 }
00571
00572 static const SpriteGroup *ResolveStation(ResolverObject *object)
00573 {
00574 const SpriteGroup *group;
00575 CargoID ctype = CT_DEFAULT_NA;
00576
00577 if (object->u.station.st == NULL) {
00578
00579 ctype = CT_PURCHASE;
00580 } else if (Station::IsExpected(object->u.station.st)) {
00581 const Station *st = Station::From(object->u.station.st);
00582
00583 const CargoSpec *cs;
00584 FOR_ALL_CARGOSPECS(cs) {
00585 if (object->u.station.statspec->grf_prop.spritegroup[cs->Index()] != NULL &&
00586 !st->goods[cs->Index()].cargo.Empty()) {
00587 ctype = cs->Index();
00588 break;
00589 }
00590 }
00591 }
00592
00593 group = object->u.station.statspec->grf_prop.spritegroup[ctype];
00594 if (group == NULL) {
00595 ctype = CT_DEFAULT;
00596 group = object->u.station.statspec->grf_prop.spritegroup[ctype];
00597 }
00598
00599 if (group == NULL) return NULL;
00600
00601
00602 object->u.station.cargo_type = ctype;
00603
00604 return SpriteGroup::Resolve(group, object);
00605 }
00606
00615 SpriteID GetCustomStationRelocation(const StationSpec *statspec, BaseStation *st, TileIndex tile, uint32 var10)
00616 {
00617 const SpriteGroup *group;
00618 ResolverObject object;
00619
00620 NewStationResolver(&object, statspec, st, tile);
00621 object.callback_param1 = var10;
00622
00623 group = ResolveStation(&object);
00624 if (group == NULL || group->type != SGT_RESULT) return 0;
00625 return group->GetResult() - 0x42D;
00626 }
00627
00637 SpriteID GetCustomStationFoundationRelocation(const StationSpec *statspec, BaseStation *st, TileIndex tile, uint layout, uint edge_info)
00638 {
00639 const SpriteGroup *group;
00640 ResolverObject object;
00641
00642 NewStationResolver(&object, statspec, st, tile);
00643 object.callback_param1 = 2;
00644 object.callback_param2 = layout | (edge_info << 16);
00645
00646 ClearRegister(0x100);
00647 group = ResolveStation(&object);
00648 if (group == NULL || group->type != SGT_RESULT) return 0;
00649 return group->GetResult() + GetRegister(0x100);
00650 }
00651
00652
00653 uint16 GetStationCallback(CallbackID callback, uint32 param1, uint32 param2, const StationSpec *statspec, BaseStation *st, TileIndex tile)
00654 {
00655 const SpriteGroup *group;
00656 ResolverObject object;
00657
00658 NewStationResolver(&object, statspec, st, tile);
00659
00660 object.callback = callback;
00661 object.callback_param1 = param1;
00662 object.callback_param2 = param2;
00663
00664 group = ResolveStation(&object);
00665 if (group == NULL) return CALLBACK_FAILED;
00666 return group->GetCallbackResult();
00667 }
00668
00679 CommandCost PerformStationTileSlopeCheck(TileIndex north_tile, TileIndex cur_tile, const StationSpec *statspec, Axis axis, byte plat_len, byte numtracks)
00680 {
00681 TileIndexDiff diff = cur_tile - north_tile;
00682 Slope slope = GetTileSlope(cur_tile);
00683
00684 ResolverObject object;
00685 NewStationResolver(&object, statspec, NULL, cur_tile);
00686
00687 object.callback = CBID_STATION_LAND_SLOPE_CHECK;
00688 object.callback_param1 = slope << 4 | (slope ^ (axis == AXIS_Y && HasBit(slope, CORNER_W) != HasBit(slope, CORNER_E) ? SLOPE_EW : 0));
00689 object.callback_param2 = numtracks << 24 | plat_len << 16 | (axis == AXIS_Y ? TileX(diff) << 8 | TileY(diff) : TileY(diff) << 8 | TileX(diff));
00690 object.u.station.axis = axis;
00691
00692 const SpriteGroup *group = ResolveStation(&object);
00693 uint16 cb_res = group != NULL ? group->GetCallbackResult() : CALLBACK_FAILED;
00694
00695
00696 if (cb_res == CALLBACK_FAILED) return CommandCost();
00697
00698
00699 if (statspec->grf_prop.grffile->grf_version < 8) ToggleBit(cb_res, 10);
00700 return GetErrorMessageFromLocationCallbackResult(cb_res, statspec->grf_prop.grffile->grfid, STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION);
00701 }
00702
00703
00711 int AllocateSpecToStation(const StationSpec *statspec, BaseStation *st, bool exec)
00712 {
00713 uint i;
00714
00715 if (statspec == NULL || st == NULL) return 0;
00716
00717 for (i = 1; i < st->num_specs && i < MAX_SPECLIST; i++) {
00718 if (st->speclist[i].spec == NULL && st->speclist[i].grfid == 0) break;
00719 }
00720
00721 if (i == MAX_SPECLIST) {
00722
00723
00724
00725
00726
00727 for (i = 1; i < st->num_specs && i < MAX_SPECLIST; i++) {
00728 if (st->speclist[i].spec == statspec) return i;
00729 }
00730
00731 return -1;
00732 }
00733
00734 if (exec) {
00735 if (i >= st->num_specs) {
00736 st->num_specs = i + 1;
00737 st->speclist = ReallocT(st->speclist, st->num_specs);
00738
00739 if (st->num_specs == 2) {
00740
00741 st->speclist[0].spec = NULL;
00742 st->speclist[0].grfid = 0;
00743 st->speclist[0].localidx = 0;
00744 }
00745 }
00746
00747 st->speclist[i].spec = statspec;
00748 st->speclist[i].grfid = statspec->grf_prop.grffile->grfid;
00749 st->speclist[i].localidx = statspec->grf_prop.local_id;
00750 }
00751
00752 return i;
00753 }
00754
00755
00762 void DeallocateSpecFromStation(BaseStation *st, byte specindex)
00763 {
00764
00765 if (specindex == 0) return;
00766
00767 ETileArea area = ETileArea(st, INVALID_TILE, TA_WHOLE);
00768
00769 TILE_AREA_LOOP(tile, area) {
00770 if (st->TileBelongsToRailStation(tile) && GetCustomStationSpecIndex(tile) == specindex) {
00771 return;
00772 }
00773 }
00774
00775
00776 st->speclist[specindex].spec = NULL;
00777 st->speclist[specindex].grfid = 0;
00778 st->speclist[specindex].localidx = 0;
00779
00780
00781 if (specindex == st->num_specs - 1) {
00782 for (; st->speclist[st->num_specs - 1].grfid == 0 && st->num_specs > 1; st->num_specs--) {}
00783
00784 if (st->num_specs > 1) {
00785 st->speclist = ReallocT(st->speclist, st->num_specs);
00786 } else {
00787 free(st->speclist);
00788 st->num_specs = 0;
00789 st->speclist = NULL;
00790 st->cached_anim_triggers = 0;
00791 return;
00792 }
00793 }
00794
00795 StationUpdateAnimTriggers(st);
00796 }
00797
00808 bool DrawStationTile(int x, int y, RailType railtype, Axis axis, StationClassID sclass, uint station)
00809 {
00810 const DrawTileSprites *sprites = NULL;
00811 const RailtypeInfo *rti = GetRailTypeInfo(railtype);
00812 PaletteID palette = COMPANY_SPRITE_COLOUR(_local_company);
00813 uint tile = 2;
00814
00815 const StationSpec *statspec = StationClass::Get(sclass)->GetSpec(station);
00816 if (statspec == NULL) return false;
00817
00818 if (HasBit(statspec->callback_mask, CBM_STATION_SPRITE_LAYOUT)) {
00819 uint16 callback = GetStationCallback(CBID_STATION_SPRITE_LAYOUT, 0x2110000, 0, statspec, NULL, INVALID_TILE);
00820 if (callback != CALLBACK_FAILED) tile = callback;
00821 }
00822
00823 uint32 total_offset = rti->GetRailtypeSpriteOffset();
00824 uint32 relocation = 0;
00825 uint32 ground_relocation = 0;
00826 const NewGRFSpriteLayout *layout = NULL;
00827 DrawTileSprites tmp_rail_layout;
00828
00829 if (statspec->renderdata == NULL) {
00830 sprites = GetStationTileLayout(STATION_RAIL, tile + axis);
00831 } else {
00832 layout = &statspec->renderdata[(tile < statspec->tiles) ? tile + axis : (uint)axis];
00833 if (!layout->NeedsPreprocessing()) {
00834 sprites = layout;
00835 layout = NULL;
00836 }
00837 }
00838
00839 if (layout != NULL) {
00840
00841 bool separate_ground = HasBit(statspec->flags, SSF_SEPARATE_GROUND);
00842 uint32 var10_values = layout->PrepareLayout(total_offset, rti->fallback_railtype, 0, 0, separate_ground);
00843 uint8 var10;
00844 FOR_EACH_SET_BIT(var10, var10_values) {
00845 uint32 var10_relocation = GetCustomStationRelocation(statspec, NULL, INVALID_TILE, var10);
00846 layout->ProcessRegisters(var10, var10_relocation, separate_ground);
00847 }
00848
00849 tmp_rail_layout.seq = layout->GetLayout(&tmp_rail_layout.ground);
00850 sprites = &tmp_rail_layout;
00851 total_offset = 0;
00852 } else {
00853
00854 ground_relocation = relocation = GetCustomStationRelocation(statspec, NULL, INVALID_TILE, 0);
00855 if (HasBit(sprites->ground.sprite, SPRITE_MODIFIER_CUSTOM_SPRITE)) {
00856 ground_relocation = GetCustomStationRelocation(statspec, NULL, INVALID_TILE, 1);
00857 }
00858 ground_relocation += rti->fallback_railtype;
00859 }
00860
00861 SpriteID image = sprites->ground.sprite;
00862 PaletteID pal = sprites->ground.pal;
00863 image += HasBit(image, SPRITE_MODIFIER_CUSTOM_SPRITE) ? ground_relocation : total_offset;
00864 if (HasBit(pal, SPRITE_MODIFIER_CUSTOM_SPRITE)) pal += ground_relocation;
00865
00866 DrawSprite(image, GroundSpritePaletteTransform(image, pal, palette), x, y);
00867
00868 DrawRailTileSeqInGUI(x, y, sprites, total_offset, relocation, palette);
00869
00870 return true;
00871 }
00872
00873
00874 const StationSpec *GetStationSpec(TileIndex t)
00875 {
00876 if (!IsCustomStationSpecIndex(t)) return NULL;
00877
00878 const BaseStation *st = BaseStation::GetByTile(t);
00879 uint specindex = GetCustomStationSpecIndex(t);
00880 return specindex < st->num_specs ? st->speclist[specindex].spec : NULL;
00881 }
00882
00883
00890 bool IsStationTileBlocked(TileIndex tile)
00891 {
00892 const StationSpec *statspec = GetStationSpec(tile);
00893
00894 return statspec != NULL && HasBit(statspec->blocked, GetStationGfx(tile));
00895 }
00896
00903 bool CanStationTileHavePylons(TileIndex tile)
00904 {
00905 const StationSpec *statspec = GetStationSpec(tile);
00906 uint gfx = GetStationGfx(tile);
00907
00908 return statspec != NULL ? HasBit(statspec->pylons, gfx) : gfx < 4;
00909 }
00910
00917 bool CanStationTileHaveWires(TileIndex tile)
00918 {
00919 const StationSpec *statspec = GetStationSpec(tile);
00920 return statspec == NULL || !HasBit(statspec->wires, GetStationGfx(tile));
00921 }
00922
00924 uint16 GetAnimStationCallback(CallbackID callback, uint32 param1, uint32 param2, const StationSpec *statspec, BaseStation *st, TileIndex tile, int extra_data)
00925 {
00926 return GetStationCallback(callback, param1, param2, statspec, st, tile);
00927 }
00928
00930 struct StationAnimationBase : public AnimationBase<StationAnimationBase, StationSpec, BaseStation, int, GetAnimStationCallback> {
00931 static const CallbackID cb_animation_speed = CBID_STATION_ANIMATION_SPEED;
00932 static const CallbackID cb_animation_next_frame = CBID_STATION_ANIM_NEXT_FRAME;
00933
00934 static const StationCallbackMask cbm_animation_speed = CBM_STATION_ANIMATION_SPEED;
00935 static const StationCallbackMask cbm_animation_next_frame = CBM_STATION_ANIMATION_NEXT_FRAME;
00936 };
00937
00938 void AnimateStationTile(TileIndex tile)
00939 {
00940 const StationSpec *ss = GetStationSpec(tile);
00941 if (ss == NULL) return;
00942
00943 StationAnimationBase::AnimateTile(ss, BaseStation::GetByTile(tile), tile, HasBit(ss->flags, SSF_CB141_RANDOM_BITS));
00944 }
00945
00946 void TriggerStationAnimation(BaseStation *st, TileIndex tile, StationAnimationTrigger trigger, CargoID cargo_type)
00947 {
00948
00949 static const TriggerArea tas[] = {
00950 TA_TILE, TA_WHOLE, TA_WHOLE, TA_PLATFORM, TA_PLATFORM, TA_PLATFORM, TA_WHOLE
00951 };
00952
00953
00954 if (st == NULL) st = BaseStation::GetByTile(tile);
00955
00956
00957
00958 if (!HasBit(st->cached_anim_triggers, trigger)) return;
00959
00960 uint16 random_bits = Random();
00961 ETileArea area = ETileArea(st, tile, tas[trigger]);
00962
00963
00964 TILE_AREA_LOOP(tile, area) {
00965 if (st->TileBelongsToRailStation(tile)) {
00966 const StationSpec *ss = GetStationSpec(tile);
00967 if (ss != NULL && HasBit(ss->animation.triggers, trigger)) {
00968 CargoID cargo;
00969 if (cargo_type == CT_INVALID) {
00970 cargo = CT_INVALID;
00971 } else {
00972 cargo = ss->grf_prop.grffile->cargo_map[cargo_type];
00973 }
00974 StationAnimationBase::ChangeAnimationFrame(CBID_STATION_ANIM_START_STOP, ss, st, tile, (random_bits << 16) | Random(), (uint8)trigger | (cargo << 8));
00975 }
00976 }
00977 }
00978 }
00979
00984 void StationUpdateAnimTriggers(BaseStation *st)
00985 {
00986 st->cached_anim_triggers = 0;
00987
00988
00989
00990 for (uint i = 0; i < st->num_specs; i++) {
00991 const StationSpec *ss = st->speclist[i].spec;
00992 if (ss != NULL) st->cached_anim_triggers |= ss->animation.triggers;
00993 }
00994 }
00995
01001 void GetStationResolver(ResolverObject *ro, uint index)
01002 {
01003 NewStationResolver(ro, GetStationSpec(index), Station::GetByTile(index), index);
01004 }