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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].count = 1;
00037 classes[0].spec = MallocT<StationSpec*>(1);
00038 classes[0].spec[0] = NULL;
00039
00040 classes[1].global_id = 'WAYP';
00041 classes[1].name = STR_STATION_CLASS_WAYP;
00042 classes[1].count = 1;
00043 classes[1].spec = MallocT<StationSpec*>(1);
00044 classes[1].spec[0] = NULL;
00045 }
00046
00047 INSTANTIATE_NEWGRF_CLASS_METHODS(StationClass, StationSpec, StationClassID, STAT_CLASS_MAX)
00048
00049 static const uint MAX_SPECLIST = 255;
00050
00051 enum TriggerArea {
00052 TA_TILE,
00053 TA_PLATFORM,
00054 TA_WHOLE,
00055 };
00056
00057 struct ETileArea : TileArea {
00058 ETileArea(const BaseStation *st, TileIndex tile, TriggerArea ta)
00059 {
00060 switch (ta) {
00061 default: NOT_REACHED();
00062
00063 case TA_TILE:
00064 this->tile = tile;
00065 this->w = 1;
00066 this->h = 1;
00067 break;
00068
00069 case TA_PLATFORM: {
00070 TileIndex start, end;
00071 Axis axis = GetRailStationAxis(tile);
00072 TileIndexDiff delta = TileOffsByDiagDir(AxisToDiagDir(axis));
00073
00074 for (end = tile; IsRailStationTile(end + delta) && IsCompatibleTrainStationTile(tile, end + delta); end += delta) { }
00075 for (start = tile; IsRailStationTile(start - delta) && IsCompatibleTrainStationTile(tile, start - delta); start -= delta) { }
00076
00077 this->tile = start;
00078 this->w = TileX(end) - TileX(start) + 1;
00079 this->h = TileY(end) - TileY(start) + 1;
00080 break;
00081 }
00082
00083 case TA_WHOLE:
00084 st->GetTileArea(this, Station::IsExpected(st) ? STATION_RAIL : STATION_WAYPOINT);
00085 break;
00086 }
00087 }
00088 };
00089
00090
00103 uint32 GetPlatformInfo(Axis axis, byte tile, int platforms, int length, int x, int y, bool centred)
00104 {
00105 uint32 retval = 0;
00106
00107 if (axis == AXIS_X) {
00108 Swap(platforms, length);
00109 Swap(x, y);
00110 }
00111
00112 if (centred) {
00113 x -= platforms / 2;
00114 y -= length / 2;
00115 x = Clamp(x, -8, 7);
00116 y = Clamp(y, -8, 7);
00117 SB(retval, 0, 4, y & 0xF);
00118 SB(retval, 4, 4, x & 0xF);
00119 } else {
00120 SB(retval, 0, 4, min(15, y));
00121 SB(retval, 4, 4, min(15, length - y - 1));
00122 SB(retval, 8, 4, min(15, x));
00123 SB(retval, 12, 4, min(15, platforms - x - 1));
00124 }
00125 SB(retval, 16, 4, min(15, length));
00126 SB(retval, 20, 4, min(15, platforms));
00127 SB(retval, 24, 4, tile);
00128
00129 return retval;
00130 }
00131
00132
00141 static TileIndex FindRailStationEnd(TileIndex tile, TileIndexDiff delta, bool check_type, bool check_axis)
00142 {
00143 byte orig_type = 0;
00144 Axis orig_axis = AXIS_X;
00145 StationID sid = GetStationIndex(tile);
00146
00147 if (check_type) orig_type = GetCustomStationSpecIndex(tile);
00148 if (check_axis) orig_axis = GetRailStationAxis(tile);
00149
00150 for (;;) {
00151 TileIndex new_tile = TILE_ADD(tile, delta);
00152
00153 if (!IsTileType(new_tile, MP_STATION) || GetStationIndex(new_tile) != sid) break;
00154 if (!HasStationRail(new_tile)) break;
00155 if (check_type && GetCustomStationSpecIndex(new_tile) != orig_type) break;
00156 if (check_axis && GetRailStationAxis(new_tile) != orig_axis) break;
00157
00158 tile = new_tile;
00159 }
00160 return tile;
00161 }
00162
00163
00164 static uint32 GetPlatformInfoHelper(TileIndex tile, bool check_type, bool check_axis, bool centred)
00165 {
00166 int tx = TileX(tile);
00167 int ty = TileY(tile);
00168 int sx = TileX(FindRailStationEnd(tile, TileDiffXY(-1, 0), check_type, check_axis));
00169 int sy = TileY(FindRailStationEnd(tile, TileDiffXY( 0, -1), check_type, check_axis));
00170 int ex = TileX(FindRailStationEnd(tile, TileDiffXY( 1, 0), check_type, check_axis)) + 1;
00171 int ey = TileY(FindRailStationEnd(tile, TileDiffXY( 0, 1), check_type, check_axis)) + 1;
00172
00173 tx -= sx; ex -= sx;
00174 ty -= sy; ey -= sy;
00175
00176 return GetPlatformInfo(GetRailStationAxis(tile), GetStationGfx(tile), ex, ey, tx, ty, centred);
00177 }
00178
00179
00180 static uint32 GetRailContinuationInfo(TileIndex tile)
00181 {
00182
00183 static const Direction x_dir[8] = { DIR_SW, DIR_NE, DIR_SE, DIR_NW, DIR_S, DIR_E, DIR_W, DIR_N };
00184 static const DiagDirection x_exits[8] = { DIAGDIR_SW, DIAGDIR_NE, DIAGDIR_SE, DIAGDIR_NW, DIAGDIR_SW, DIAGDIR_NE, DIAGDIR_SW, DIAGDIR_NE };
00185
00186
00187 static const Direction y_dir[8] = { DIR_SE, DIR_NW, DIR_SW, DIR_NE, DIR_S, DIR_W, DIR_E, DIR_N };
00188 static const DiagDirection y_exits[8] = { DIAGDIR_SE, DIAGDIR_NW, DIAGDIR_SW, DIAGDIR_NE, DIAGDIR_SE, DIAGDIR_NW, DIAGDIR_SE, DIAGDIR_NW };
00189
00190 Axis axis = GetRailStationAxis(tile);
00191
00192
00193 const Direction *dir = axis == AXIS_X ? x_dir : y_dir;
00194 const DiagDirection *diagdir = axis == AXIS_X ? x_exits : y_exits;
00195
00196 uint32 res = 0;
00197 uint i;
00198
00199 for (i = 0; i < lengthof(x_dir); i++, dir++, diagdir++) {
00200 TileIndex neighbour_tile = tile + TileOffsByDir(*dir);
00201 TrackBits trackbits = TrackStatusToTrackBits(GetTileTrackStatus(neighbour_tile, TRANSPORT_RAIL, 0));
00202 if (trackbits != TRACK_BIT_NONE) {
00203
00204 SetBit(res, i + 8);
00205
00206
00207
00208 if (IsTileType(neighbour_tile, MP_TUNNELBRIDGE) && GetTunnelBridgeDirection(neighbour_tile) != *diagdir) {
00209 continue;
00210 }
00211
00212
00213 if (trackbits & DiagdirReachesTracks(*diagdir)) SetBit(res, i);
00214 }
00215 }
00216
00217 return res;
00218 }
00219
00220
00221
00222 static uint32 StationGetRandomBits(const ResolverObject *object)
00223 {
00224 const BaseStation *st = object->u.station.st;
00225 const TileIndex tile = object->u.station.tile;
00226 return (st == NULL ? 0 : st->random_bits) | (tile == INVALID_TILE ? 0 : GetStationTileRandomBits(tile) << 16);
00227 }
00228
00229
00230 static uint32 StationGetTriggers(const ResolverObject *object)
00231 {
00232 const BaseStation *st = object->u.station.st;
00233 return st == NULL ? 0 : st->waiting_triggers;
00234 }
00235
00236
00237 static void StationSetTriggers(const ResolverObject *object, int triggers)
00238 {
00239 BaseStation *st = const_cast<BaseStation *>(object->u.station.st);
00240 assert(st != NULL);
00241 st->waiting_triggers = triggers;
00242 }
00243
00249 static struct {
00250 uint32 v40;
00251 uint32 v41;
00252 uint32 v45;
00253 uint32 v46;
00254 uint32 v47;
00255 uint32 v49;
00256 uint8 valid;
00257 } _svc;
00258
00259 static uint32 StationGetVariable(const ResolverObject *object, byte variable, uint32 parameter, bool *available)
00260 {
00261 const BaseStation *st = object->u.station.st;
00262 TileIndex tile = object->u.station.tile;
00263
00264 if (object->scope == VSG_SCOPE_PARENT) {
00265
00266 Town *t;
00267
00268 if (st != NULL) {
00269 t = st->town;
00270 } else if (tile != INVALID_TILE) {
00271 t = ClosestTownFromTile(tile, UINT_MAX);
00272 } else {
00273 *available = false;
00274 return UINT_MAX;
00275 }
00276
00277 return TownGetVariable(variable, parameter, available, t, object->grffile);
00278 }
00279
00280 if (st == NULL) {
00281
00282 switch (variable) {
00283 case 0x40:
00284 case 0x41:
00285 case 0x46:
00286 case 0x47:
00287 case 0x49: return 0x2110000;
00288 case 0x42: return 0;
00289 case 0x43: return GetCompanyInfo(_current_company);
00290 case 0x44: return 2;
00291 case 0x67:
00292 if (object->u.station.axis != INVALID_AXIS && tile != INVALID_TILE) {
00293 if (parameter != 0) tile = GetNearbyTile(parameter, tile, true, object->u.station.axis);
00294
00295 Slope tileh = GetTileSlope(tile);
00296 bool swap = (object->u.station.axis == AXIS_Y && HasBit(tileh, CORNER_W) != HasBit(tileh, CORNER_E));
00297
00298 return GetNearbyTileInformation(tile, object->grffile->grf_version >= 8) ^ (swap ? SLOPE_EW : 0);
00299 }
00300 break;
00301
00302 case 0xFA: return Clamp(_date - DAYS_TILL_ORIGINAL_BASE_YEAR, 0, 65535);
00303 }
00304
00305 *available = false;
00306 return UINT_MAX;
00307 }
00308
00309 switch (variable) {
00310
00311 case 0x40:
00312 if (!HasBit(_svc.valid, 0)) { _svc.v40 = GetPlatformInfoHelper(tile, false, false, false); SetBit(_svc.valid, 0); }
00313 return _svc.v40;
00314
00315 case 0x41:
00316 if (!HasBit(_svc.valid, 1)) { _svc.v41 = GetPlatformInfoHelper(tile, true, false, false); SetBit(_svc.valid, 1); }
00317 return _svc.v41;
00318
00319 case 0x42: return GetTerrainType(tile) | (GetReverseRailTypeTranslation(GetRailType(tile), object->u.station.statspec->grf_prop.grffile) << 8);
00320 case 0x43: return GetCompanyInfo(st->owner);
00321 case 0x44: return HasStationReservation(tile) ? 7 : 4;
00322 case 0x45:
00323 if (!HasBit(_svc.valid, 2)) { _svc.v45 = GetRailContinuationInfo(tile); SetBit(_svc.valid, 2); }
00324 return _svc.v45;
00325
00326 case 0x46:
00327 if (!HasBit(_svc.valid, 3)) { _svc.v46 = GetPlatformInfoHelper(tile, false, false, true); SetBit(_svc.valid, 3); }
00328 return _svc.v46;
00329
00330 case 0x47:
00331 if (!HasBit(_svc.valid, 4)) { _svc.v47 = GetPlatformInfoHelper(tile, true, false, true); SetBit(_svc.valid, 4); }
00332 return _svc.v47;
00333
00334 case 0x49:
00335 if (!HasBit(_svc.valid, 5)) { _svc.v49 = GetPlatformInfoHelper(tile, false, true, false); SetBit(_svc.valid, 5); }
00336 return _svc.v49;
00337
00338 case 0x4A:
00339 return GetAnimationFrame(tile);
00340
00341
00342
00343 case 0x66:
00344 if (parameter != 0) tile = GetNearbyTile(parameter, tile);
00345 return st->TileBelongsToRailStation(tile) ? GetAnimationFrame(tile) : UINT_MAX;
00346
00347 case 0x67: {
00348 Axis axis = GetRailStationAxis(tile);
00349
00350 if (parameter != 0) tile = GetNearbyTile(parameter, tile);
00351
00352 Slope tileh = GetTileSlope(tile);
00353 bool swap = (axis == AXIS_Y && HasBit(tileh, CORNER_W) != HasBit(tileh, CORNER_E));
00354
00355 return GetNearbyTileInformation(tile, object->grffile->grf_version >= 8) ^ (swap ? SLOPE_EW : 0);
00356 }
00357
00358 case 0x68: {
00359 TileIndex nearby_tile = GetNearbyTile(parameter, tile);
00360
00361 if (!HasStationTileRail(nearby_tile)) return 0xFFFFFFFF;
00362
00363 uint32 grfid = st->speclist[GetCustomStationSpecIndex(tile)].grfid;
00364 bool perpendicular = GetRailStationAxis(tile) != GetRailStationAxis(nearby_tile);
00365 bool same_station = st->TileBelongsToRailStation(nearby_tile);
00366 uint32 res = GB(GetStationGfx(nearby_tile), 1, 2) << 12 | !!perpendicular << 11 | !!same_station << 10;
00367
00368 if (IsCustomStationSpecIndex(nearby_tile)) {
00369 const StationSpecList ssl = BaseStation::GetByTile(nearby_tile)->speclist[GetCustomStationSpecIndex(nearby_tile)];
00370 res |= 1 << (ssl.grfid != grfid ? 9 : 8) | ssl.localidx;
00371 }
00372 return res;
00373 }
00374
00375
00376 case 0x82: return 50;
00377 case 0x84: return st->string_id;
00378 case 0x86: return 0;
00379 case 0xF0: return st->facilities;
00380 case 0xFA: return Clamp(st->build_date - DAYS_TILL_ORIGINAL_BASE_YEAR, 0, 65535);
00381 }
00382
00383 return st->GetNewGRFVariable(object, variable, parameter, available);
00384 }
00385
00386 uint32 Station::GetNewGRFVariable(const ResolverObject *object, byte variable, byte parameter, bool *available) const
00387 {
00388 switch (variable) {
00389 case 0x48: {
00390 CargoID cargo_type;
00391 uint32 value = 0;
00392
00393 for (cargo_type = 0; cargo_type < NUM_CARGO; cargo_type++) {
00394 if (HasBit(this->goods[cargo_type].acceptance_pickup, GoodsEntry::GES_PICKUP)) SetBit(value, cargo_type);
00395 }
00396 return value;
00397 }
00398
00399 case 0x8A: return this->had_vehicle_of_type;
00400 case 0xF1: return (this->airport.tile != INVALID_TILE) ? this->airport.GetSpec()->ttd_airport_type : ATP_TTDP_LARGE;
00401 case 0xF2: return (this->truck_stops != NULL) ? this->truck_stops->status : 0;
00402 case 0xF3: return (this->bus_stops != NULL) ? this->bus_stops->status : 0;
00403 case 0xF6: return this->airport.flags;
00404 case 0xF7: return GB(this->airport.flags, 8, 8);
00405 }
00406
00407
00408 if ((variable >= 0x60 && variable <= 0x65) || variable == 0x69) {
00409 CargoID c = GetCargoTranslation(parameter, object->grffile);
00410
00411 if (c == CT_INVALID) return 0;
00412 const GoodsEntry *ge = &this->goods[c];
00413
00414 switch (variable) {
00415 case 0x60: return min(ge->cargo.Count(), 4095);
00416 case 0x61: return ge->days_since_pickup;
00417 case 0x62: return ge->rating;
00418 case 0x63: return ge->cargo.DaysInTransit();
00419 case 0x64: return ge->last_speed | (ge->last_age << 8);
00420 case 0x65: return GB(ge->acceptance_pickup, GoodsEntry::GES_ACCEPTANCE, 1) << 3;
00421 case 0x69: return GB(ge->acceptance_pickup, GoodsEntry::GES_EVER_ACCEPTED, 4);
00422 }
00423 }
00424
00425
00426 if (variable >= 0x8C && variable <= 0xEC) {
00427 const GoodsEntry *g = &this->goods[GB(variable - 0x8C, 3, 4)];
00428 switch (GB(variable - 0x8C, 0, 3)) {
00429 case 0: return g->cargo.Count();
00430 case 1: return GB(min(g->cargo.Count(), 4095), 0, 4) | (GB(g->acceptance_pickup, GoodsEntry::GES_ACCEPTANCE, 1) << 7);
00431 case 2: return g->days_since_pickup;
00432 case 3: return g->rating;
00433 case 4: return g->cargo.Source();
00434 case 5: return g->cargo.DaysInTransit();
00435 case 6: return g->last_speed;
00436 case 7: return g->last_age;
00437 }
00438 }
00439
00440 DEBUG(grf, 1, "Unhandled station variable 0x%X", variable);
00441
00442 *available = false;
00443 return UINT_MAX;
00444 }
00445
00446 uint32 Waypoint::GetNewGRFVariable(const ResolverObject *object, byte variable, byte parameter, bool *available) const
00447 {
00448 switch (variable) {
00449 case 0x48: return 0;
00450 case 0x8A: return HVOT_WAYPOINT;
00451 case 0xF1: return 0;
00452 case 0xF2: return 0;
00453 case 0xF3: return 0;
00454 case 0xF6: return 0;
00455 case 0xF7: return 0;
00456 }
00457
00458
00459 if (variable >= 0x60 && variable <= 0x65) {
00460 return 0;
00461 }
00462
00463
00464 if (variable >= 0x8C && variable <= 0xEC) {
00465 switch (GB(variable - 0x8C, 0, 3)) {
00466 case 3: return INITIAL_STATION_RATING;
00467 case 4: return INVALID_STATION;
00468 default: return 0;
00469 }
00470 }
00471
00472 DEBUG(grf, 1, "Unhandled station variable 0x%X", variable);
00473
00474 *available = false;
00475 return UINT_MAX;
00476 }
00477
00478 static const SpriteGroup *StationResolveReal(const ResolverObject *object, const RealSpriteGroup *group)
00479 {
00480 const BaseStation *bst = object->u.station.st;
00481 const StationSpec *statspec = object->u.station.statspec;
00482 uint set;
00483
00484 uint cargo = 0;
00485 CargoID cargo_type = object->u.station.cargo_type;
00486
00487 if (bst == NULL || statspec->cls_id == STAT_CLASS_WAYP) {
00488 return group->loading[0];
00489 }
00490
00491 const Station *st = Station::From(bst);
00492
00493 switch (cargo_type) {
00494 case CT_INVALID:
00495 case CT_DEFAULT_NA:
00496 case CT_PURCHASE:
00497 cargo = 0;
00498 break;
00499
00500 case CT_DEFAULT:
00501 for (cargo_type = 0; cargo_type < NUM_CARGO; cargo_type++) {
00502 cargo += st->goods[cargo_type].cargo.Count();
00503 }
00504 break;
00505
00506 default:
00507 cargo = st->goods[cargo_type].cargo.Count();
00508 break;
00509 }
00510
00511 if (HasBit(statspec->flags, SSF_DIV_BY_STATION_SIZE)) cargo /= (st->train_station.w + st->train_station.h);
00512 cargo = min(0xfff, cargo);
00513
00514 if (cargo > statspec->cargo_threshold) {
00515 if (group->num_loading > 0) {
00516 set = ((cargo - statspec->cargo_threshold) * group->num_loading) / (4096 - statspec->cargo_threshold);
00517 return group->loading[set];
00518 }
00519 } else {
00520 if (group->num_loaded > 0) {
00521 set = (cargo * group->num_loaded) / (statspec->cargo_threshold + 1);
00522 return group->loaded[set];
00523 }
00524 }
00525
00526 return group->loading[0];
00527 }
00528
00529
00536 void StationStorePSA(ResolverObject *object, uint pos, int32 value)
00537 {
00538
00539 BaseStation *st = object->u.station.st;
00540 if (object->scope != VSG_SCOPE_PARENT || st == NULL) return;
00541
00542 TownStorePSA(st->town, object->grffile, pos, value);
00543 }
00544
00545 static void NewStationResolver(ResolverObject *res, const StationSpec *statspec, BaseStation *st, TileIndex tile)
00546 {
00547 res->GetRandomBits = StationGetRandomBits;
00548 res->GetTriggers = StationGetTriggers;
00549 res->SetTriggers = StationSetTriggers;
00550 res->GetVariable = StationGetVariable;
00551 res->ResolveReal = StationResolveReal;
00552 res->StorePSA = StationStorePSA;
00553
00554 res->u.station.st = st;
00555 res->u.station.statspec = statspec;
00556 res->u.station.tile = tile;
00557 res->u.station.axis = INVALID_AXIS;
00558
00559 res->callback = CBID_NO_CALLBACK;
00560 res->callback_param1 = 0;
00561 res->callback_param2 = 0;
00562 res->ResetState();
00563
00564 res->grffile = (statspec != NULL ? statspec->grf_prop.grffile : NULL);
00565
00566
00567 _svc.valid = 0;
00568 }
00569
00570 static const SpriteGroup *ResolveStation(ResolverObject *object)
00571 {
00572 const SpriteGroup *group;
00573 CargoID ctype = CT_DEFAULT_NA;
00574
00575 if (object->u.station.st == NULL) {
00576
00577 ctype = CT_PURCHASE;
00578 } else if (Station::IsExpected(object->u.station.st)) {
00579 const Station *st = Station::From(object->u.station.st);
00580
00581 const CargoSpec *cs;
00582 FOR_ALL_CARGOSPECS(cs) {
00583 if (object->u.station.statspec->grf_prop.spritegroup[cs->Index()] != NULL &&
00584 !st->goods[cs->Index()].cargo.Empty()) {
00585 ctype = cs->Index();
00586 break;
00587 }
00588 }
00589 }
00590
00591 group = object->u.station.statspec->grf_prop.spritegroup[ctype];
00592 if (group == NULL) {
00593 ctype = CT_DEFAULT;
00594 group = object->u.station.statspec->grf_prop.spritegroup[ctype];
00595 }
00596
00597 if (group == NULL) return NULL;
00598
00599
00600 object->u.station.cargo_type = ctype;
00601
00602 return SpriteGroup::Resolve(group, object);
00603 }
00604
00613 SpriteID GetCustomStationRelocation(const StationSpec *statspec, BaseStation *st, TileIndex tile, uint32 var10)
00614 {
00615 const SpriteGroup *group;
00616 ResolverObject object;
00617
00618 NewStationResolver(&object, statspec, st, tile);
00619 object.callback_param1 = var10;
00620
00621 group = ResolveStation(&object);
00622 if (group == NULL || group->type != SGT_RESULT) return 0;
00623 return group->GetResult() - 0x42D;
00624 }
00625
00635 SpriteID GetCustomStationFoundationRelocation(const StationSpec *statspec, BaseStation *st, TileIndex tile, uint layout, uint edge_info)
00636 {
00637 const SpriteGroup *group;
00638 ResolverObject object;
00639
00640 NewStationResolver(&object, statspec, st, tile);
00641 object.callback_param1 = 2;
00642 object.callback_param2 = layout | (edge_info << 16);
00643
00644 ClearRegister(0x100);
00645 group = ResolveStation(&object);
00646 if (group == NULL || group->type != SGT_RESULT) return 0;
00647 return group->GetResult() + GetRegister(0x100);
00648 }
00649
00650
00651 uint16 GetStationCallback(CallbackID callback, uint32 param1, uint32 param2, const StationSpec *statspec, BaseStation *st, TileIndex tile)
00652 {
00653 const SpriteGroup *group;
00654 ResolverObject object;
00655
00656 NewStationResolver(&object, statspec, st, tile);
00657
00658 object.callback = callback;
00659 object.callback_param1 = param1;
00660 object.callback_param2 = param2;
00661
00662 group = ResolveStation(&object);
00663 if (group == NULL) return CALLBACK_FAILED;
00664 return group->GetCallbackResult();
00665 }
00666
00677 CommandCost PerformStationTileSlopeCheck(TileIndex north_tile, TileIndex cur_tile, const StationSpec *statspec, Axis axis, byte plat_len, byte numtracks)
00678 {
00679 TileIndexDiff diff = cur_tile - north_tile;
00680 Slope slope = GetTileSlope(cur_tile);
00681
00682 ResolverObject object;
00683 NewStationResolver(&object, statspec, NULL, cur_tile);
00684
00685 object.callback = CBID_STATION_LAND_SLOPE_CHECK;
00686 object.callback_param1 = slope << 4 | (slope ^ (axis == AXIS_Y && HasBit(slope, CORNER_W) != HasBit(slope, CORNER_E) ? SLOPE_EW : 0));
00687 object.callback_param2 = numtracks << 24 | plat_len << 16 | (axis == AXIS_Y ? TileX(diff) << 8 | TileY(diff) : TileY(diff) << 8 | TileX(diff));
00688 object.u.station.axis = axis;
00689
00690 const SpriteGroup *group = ResolveStation(&object);
00691 uint16 cb_res = group != NULL ? group->GetCallbackResult() : CALLBACK_FAILED;
00692
00693
00694 if (cb_res == CALLBACK_FAILED) return CommandCost();
00695
00696
00697 if (statspec->grf_prop.grffile->grf_version < 8) ToggleBit(cb_res, 10);
00698 return GetErrorMessageFromLocationCallbackResult(cb_res, statspec->grf_prop.grffile->grfid, STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION);
00699 }
00700
00701
00709 int AllocateSpecToStation(const StationSpec *statspec, BaseStation *st, bool exec)
00710 {
00711 uint i;
00712
00713 if (statspec == NULL || st == NULL) return 0;
00714
00715 for (i = 1; i < st->num_specs && i < MAX_SPECLIST; i++) {
00716 if (st->speclist[i].spec == NULL && st->speclist[i].grfid == 0) break;
00717 }
00718
00719 if (i == MAX_SPECLIST) {
00720
00721
00722
00723
00724
00725 for (i = 1; i < st->num_specs && i < MAX_SPECLIST; i++) {
00726 if (st->speclist[i].spec == statspec) return i;
00727 }
00728
00729 return -1;
00730 }
00731
00732 if (exec) {
00733 if (i >= st->num_specs) {
00734 st->num_specs = i + 1;
00735 st->speclist = ReallocT(st->speclist, st->num_specs);
00736
00737 if (st->num_specs == 2) {
00738
00739 st->speclist[0].spec = NULL;
00740 st->speclist[0].grfid = 0;
00741 st->speclist[0].localidx = 0;
00742 }
00743 }
00744
00745 st->speclist[i].spec = statspec;
00746 st->speclist[i].grfid = statspec->grf_prop.grffile->grfid;
00747 st->speclist[i].localidx = statspec->grf_prop.local_id;
00748 }
00749
00750 return i;
00751 }
00752
00753
00760 void DeallocateSpecFromStation(BaseStation *st, byte specindex)
00761 {
00762
00763 if (specindex == 0) return;
00764
00765 ETileArea area = ETileArea(st, INVALID_TILE, TA_WHOLE);
00766
00767 TILE_AREA_LOOP(tile, area) {
00768 if (st->TileBelongsToRailStation(tile) && GetCustomStationSpecIndex(tile) == specindex) {
00769 return;
00770 }
00771 }
00772
00773
00774 st->speclist[specindex].spec = NULL;
00775 st->speclist[specindex].grfid = 0;
00776 st->speclist[specindex].localidx = 0;
00777
00778
00779 if (specindex == st->num_specs - 1) {
00780 for (; st->speclist[st->num_specs - 1].grfid == 0 && st->num_specs > 1; st->num_specs--) {}
00781
00782 if (st->num_specs > 1) {
00783 st->speclist = ReallocT(st->speclist, st->num_specs);
00784 } else {
00785 free(st->speclist);
00786 st->num_specs = 0;
00787 st->speclist = NULL;
00788 st->cached_anim_triggers = 0;
00789 return;
00790 }
00791 }
00792
00793 StationUpdateAnimTriggers(st);
00794 }
00795
00806 bool DrawStationTile(int x, int y, RailType railtype, Axis axis, StationClassID sclass, uint station)
00807 {
00808 const StationSpec *statspec;
00809 const DrawTileSprites *sprites = NULL;
00810 const RailtypeInfo *rti = GetRailTypeInfo(railtype);
00811 PaletteID palette = COMPANY_SPRITE_COLOUR(_local_company);
00812 uint tile = 2;
00813
00814 statspec = StationClass::Get(sclass, station);
00815 if (statspec == NULL) return false;
00816
00817 if (HasBit(statspec->callback_mask, CBM_STATION_SPRITE_LAYOUT)) {
00818 uint16 callback = GetStationCallback(CBID_STATION_SPRITE_LAYOUT, 0x2110000, 0, statspec, NULL, INVALID_TILE);
00819 if (callback != CALLBACK_FAILED) tile = callback;
00820 }
00821
00822 uint32 total_offset = rti->GetRailtypeSpriteOffset();
00823 uint32 relocation = 0;
00824 uint32 ground_relocation = 0;
00825 const NewGRFSpriteLayout *layout = NULL;
00826 DrawTileSprites tmp_rail_layout;
00827
00828 if (statspec->renderdata == NULL) {
00829 sprites = GetStationTileLayout(STATION_RAIL, tile + axis);
00830 } else {
00831 layout = &statspec->renderdata[(tile < statspec->tiles) ? tile + axis : (uint)axis];
00832 if (!layout->NeedsPreprocessing()) {
00833 sprites = layout;
00834 layout = NULL;
00835 }
00836 }
00837
00838 if (layout != NULL) {
00839
00840 bool separate_ground = HasBit(statspec->flags, SSF_SEPARATE_GROUND);
00841 uint32 var10_values = layout->PrepareLayout(total_offset, rti->fallback_railtype, 0, 0, separate_ground);
00842 uint8 var10;
00843 FOR_EACH_SET_BIT(var10, var10_values) {
00844 uint32 var10_relocation = GetCustomStationRelocation(statspec, NULL, INVALID_TILE, var10);
00845 layout->ProcessRegisters(var10, var10_relocation, separate_ground);
00846 }
00847
00848 tmp_rail_layout.seq = layout->GetLayout(&tmp_rail_layout.ground);
00849 sprites = &tmp_rail_layout;
00850 total_offset = 0;
00851 } else {
00852
00853 ground_relocation = relocation = GetCustomStationRelocation(statspec, NULL, INVALID_TILE, 0);
00854 if (HasBit(sprites->ground.sprite, SPRITE_MODIFIER_CUSTOM_SPRITE)) {
00855 ground_relocation = GetCustomStationRelocation(statspec, NULL, INVALID_TILE, 1);
00856 }
00857 ground_relocation += rti->fallback_railtype;
00858 }
00859
00860 SpriteID image = sprites->ground.sprite;
00861 PaletteID pal = sprites->ground.pal;
00862 image += HasBit(image, SPRITE_MODIFIER_CUSTOM_SPRITE) ? ground_relocation : total_offset;
00863 if (HasBit(pal, SPRITE_MODIFIER_CUSTOM_SPRITE)) pal += ground_relocation;
00864
00865 DrawSprite(image, GroundSpritePaletteTransform(image, pal, palette), x, y);
00866
00867 DrawRailTileSeqInGUI(x, y, sprites, total_offset, relocation, palette);
00868
00869 return true;
00870 }
00871
00872
00873 const StationSpec *GetStationSpec(TileIndex t)
00874 {
00875 if (!IsCustomStationSpecIndex(t)) return NULL;
00876
00877 const BaseStation *st = BaseStation::GetByTile(t);
00878 uint specindex = GetCustomStationSpecIndex(t);
00879 return specindex < st->num_specs ? st->speclist[specindex].spec : NULL;
00880 }
00881
00882
00889 bool IsStationTileBlocked(TileIndex tile)
00890 {
00891 const StationSpec *statspec = GetStationSpec(tile);
00892
00893 return statspec != NULL && HasBit(statspec->blocked, GetStationGfx(tile));
00894 }
00895
00902 bool CanStationTileHavePylons(TileIndex tile)
00903 {
00904 const StationSpec *statspec = GetStationSpec(tile);
00905 uint gfx = GetStationGfx(tile);
00906
00907 return statspec != NULL ? HasBit(statspec->pylons, gfx) : gfx < 4;
00908 }
00909
00916 bool CanStationTileHaveWires(TileIndex tile)
00917 {
00918 const StationSpec *statspec = GetStationSpec(tile);
00919 return statspec == NULL || !HasBit(statspec->wires, GetStationGfx(tile));
00920 }
00921
00923 uint16 GetAnimStationCallback(CallbackID callback, uint32 param1, uint32 param2, const StationSpec *statspec, BaseStation *st, TileIndex tile, int extra_data)
00924 {
00925 return GetStationCallback(callback, param1, param2, statspec, st, tile);
00926 }
00927
00929 struct StationAnimationBase : public AnimationBase<StationAnimationBase, StationSpec, BaseStation, int, GetAnimStationCallback> {
00930 static const CallbackID cb_animation_speed = CBID_STATION_ANIMATION_SPEED;
00931 static const CallbackID cb_animation_next_frame = CBID_STATION_ANIM_NEXT_FRAME;
00932
00933 static const StationCallbackMask cbm_animation_speed = CBM_STATION_ANIMATION_SPEED;
00934 static const StationCallbackMask cbm_animation_next_frame = CBM_STATION_ANIMATION_NEXT_FRAME;
00935 };
00936
00937 void AnimateStationTile(TileIndex tile)
00938 {
00939 const StationSpec *ss = GetStationSpec(tile);
00940 if (ss == NULL) return;
00941
00942 StationAnimationBase::AnimateTile(ss, BaseStation::GetByTile(tile), tile, HasBit(ss->flags, SSF_CB141_RANDOM_BITS));
00943 }
00944
00945 void TriggerStationAnimation(BaseStation *st, TileIndex tile, StationAnimationTrigger trigger, CargoID cargo_type)
00946 {
00947
00948 static const TriggerArea tas[] = {
00949 TA_TILE, TA_WHOLE, TA_WHOLE, TA_PLATFORM, TA_PLATFORM, TA_PLATFORM, TA_WHOLE
00950 };
00951
00952
00953 if (st == NULL) st = BaseStation::GetByTile(tile);
00954
00955
00956
00957 if (!HasBit(st->cached_anim_triggers, trigger)) return;
00958
00959 uint16 random_bits = Random();
00960 ETileArea area = ETileArea(st, tile, tas[trigger]);
00961
00962
00963 TILE_AREA_LOOP(tile, area) {
00964 if (st->TileBelongsToRailStation(tile)) {
00965 const StationSpec *ss = GetStationSpec(tile);
00966 if (ss != NULL && HasBit(ss->animation.triggers, trigger)) {
00967 CargoID cargo;
00968 if (cargo_type == CT_INVALID) {
00969 cargo = CT_INVALID;
00970 } else {
00971 cargo = ss->grf_prop.grffile->cargo_map[cargo_type];
00972 }
00973 StationAnimationBase::ChangeAnimationFrame(CBID_STATION_ANIM_START_STOP, ss, st, tile, (random_bits << 16) | Random(), (uint8)trigger | (cargo << 8));
00974 }
00975 }
00976 }
00977 }
00978
00983 void StationUpdateAnimTriggers(BaseStation *st)
00984 {
00985 st->cached_anim_triggers = 0;
00986
00987
00988
00989 for (uint i = 0; i < st->num_specs; i++) {
00990 const StationSpec *ss = st->speclist[i].spec;
00991 if (ss != NULL) st->cached_anim_triggers |= ss->animation.triggers;
00992 }
00993 }
00994
01000 void GetStationResolver(ResolverObject *ro, uint index)
01001 {
01002 NewStationResolver(ro, GetStationSpec(index), Station::GetByTile(index), index);
01003 }