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 for (;;) {
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, uint32 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 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, object->grffile);
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 GetCompanyInfo(_current_company);
00291 case 0x44: return 2;
00292 case 0x67:
00293 if (object->u.station.axis != INVALID_AXIS && tile != INVALID_TILE) {
00294 if (parameter != 0) tile = GetNearbyTile(parameter, tile, true, object->u.station.axis);
00295
00296 Slope tileh = GetTileSlope(tile);
00297 bool swap = (object->u.station.axis == AXIS_Y && HasBit(tileh, CORNER_W) != HasBit(tileh, CORNER_E));
00298
00299 return GetNearbyTileInformation(tile, object->grffile->grf_version >= 8) ^ (swap ? SLOPE_EW : 0);
00300 }
00301 break;
00302
00303 case 0xFA: return Clamp(_date - DAYS_TILL_ORIGINAL_BASE_YEAR, 0, 65535);
00304 }
00305
00306 *available = false;
00307 return UINT_MAX;
00308 }
00309
00310 switch (variable) {
00311
00312 case 0x40:
00313 if (!HasBit(_svc.valid, 0)) { _svc.v40 = GetPlatformInfoHelper(tile, false, false, false); SetBit(_svc.valid, 0); }
00314 return _svc.v40;
00315
00316 case 0x41:
00317 if (!HasBit(_svc.valid, 1)) { _svc.v41 = GetPlatformInfoHelper(tile, true, false, false); SetBit(_svc.valid, 1); }
00318 return _svc.v41;
00319
00320 case 0x42: return GetTerrainType(tile) | (GetReverseRailTypeTranslation(GetRailType(tile), object->u.station.statspec->grf_prop.grffile) << 8);
00321 case 0x43: return GetCompanyInfo(st->owner);
00322 case 0x44: return HasStationReservation(tile) ? 7 : 4;
00323 case 0x45:
00324 if (!HasBit(_svc.valid, 2)) { _svc.v45 = GetRailContinuationInfo(tile); SetBit(_svc.valid, 2); }
00325 return _svc.v45;
00326
00327 case 0x46:
00328 if (!HasBit(_svc.valid, 3)) { _svc.v46 = GetPlatformInfoHelper(tile, false, false, true); SetBit(_svc.valid, 3); }
00329 return _svc.v46;
00330
00331 case 0x47:
00332 if (!HasBit(_svc.valid, 4)) { _svc.v47 = GetPlatformInfoHelper(tile, true, false, true); SetBit(_svc.valid, 4); }
00333 return _svc.v47;
00334
00335 case 0x49:
00336 if (!HasBit(_svc.valid, 5)) { _svc.v49 = GetPlatformInfoHelper(tile, false, true, false); SetBit(_svc.valid, 5); }
00337 return _svc.v49;
00338
00339 case 0x4A:
00340 return GetAnimationFrame(tile);
00341
00342
00343
00344 case 0x66:
00345 if (parameter != 0) tile = GetNearbyTile(parameter, tile);
00346 return st->TileBelongsToRailStation(tile) ? GetAnimationFrame(tile) : UINT_MAX;
00347
00348 case 0x67: {
00349 Axis axis = GetRailStationAxis(tile);
00350
00351 if (parameter != 0) tile = GetNearbyTile(parameter, tile);
00352
00353 Slope tileh = GetTileSlope(tile);
00354 bool swap = (axis == AXIS_Y && HasBit(tileh, CORNER_W) != HasBit(tileh, CORNER_E));
00355
00356 return GetNearbyTileInformation(tile, object->grffile->grf_version >= 8) ^ (swap ? SLOPE_EW : 0);
00357 }
00358
00359 case 0x68: {
00360 TileIndex nearby_tile = GetNearbyTile(parameter, tile);
00361
00362 if (!HasStationTileRail(nearby_tile)) return 0xFFFFFFFF;
00363
00364 uint32 grfid = st->speclist[GetCustomStationSpecIndex(tile)].grfid;
00365 bool perpendicular = GetRailStationAxis(tile) != GetRailStationAxis(nearby_tile);
00366 bool same_station = st->TileBelongsToRailStation(nearby_tile);
00367 uint32 res = GB(GetStationGfx(nearby_tile), 1, 2) << 12 | !!perpendicular << 11 | !!same_station << 10;
00368
00369 if (IsCustomStationSpecIndex(nearby_tile)) {
00370 const StationSpecList ssl = BaseStation::GetByTile(nearby_tile)->speclist[GetCustomStationSpecIndex(nearby_tile)];
00371 res |= 1 << (ssl.grfid != grfid ? 9 : 8) | ssl.localidx;
00372 }
00373 return res;
00374 }
00375
00376
00377 case 0x82: return 50;
00378 case 0x84: return st->string_id;
00379 case 0x86: return 0;
00380 case 0xF0: return st->facilities;
00381 case 0xFA: return Clamp(st->build_date - DAYS_TILL_ORIGINAL_BASE_YEAR, 0, 65535);
00382 }
00383
00384 return st->GetNewGRFVariable(object, variable, parameter, available);
00385 }
00386
00387 uint32 Station::GetNewGRFVariable(const ResolverObject *object, byte variable, byte parameter, bool *available) const
00388 {
00389 switch (variable) {
00390 case 0x48: {
00391 CargoID cargo_type;
00392 uint32 value = 0;
00393
00394 for (cargo_type = 0; cargo_type < NUM_CARGO; cargo_type++) {
00395 if (HasBit(this->goods[cargo_type].acceptance_pickup, GoodsEntry::GES_PICKUP)) SetBit(value, cargo_type);
00396 }
00397 return value;
00398 }
00399
00400 case 0x8A: return this->had_vehicle_of_type;
00401 case 0xF1: return (this->airport.tile != INVALID_TILE) ? this->airport.GetSpec()->ttd_airport_type : ATP_TTDP_LARGE;
00402 case 0xF2: return (this->truck_stops != NULL) ? this->truck_stops->status : 0;
00403 case 0xF3: return (this->bus_stops != NULL) ? this->bus_stops->status : 0;
00404 case 0xF6: return this->airport.flags;
00405 case 0xF7: return GB(this->airport.flags, 8, 8);
00406 }
00407
00408
00409 if ((variable >= 0x60 && variable <= 0x65) || variable == 0x69) {
00410 CargoID c = GetCargoTranslation(parameter, object->u.station.statspec->grf_prop.grffile);
00411
00412 if (c == CT_INVALID) return 0;
00413 const GoodsEntry *ge = &this->goods[c];
00414
00415 switch (variable) {
00416 case 0x60: return min(ge->cargo.Count(), 4095);
00417 case 0x61: return ge->days_since_pickup;
00418 case 0x62: return ge->rating;
00419 case 0x63: return ge->cargo.DaysInTransit();
00420 case 0x64: return ge->last_speed | (ge->last_age << 8);
00421 case 0x65: return GB(ge->acceptance_pickup, GoodsEntry::GES_ACCEPTANCE, 1) << 3;
00422 case 0x69: return GB(ge->acceptance_pickup, GoodsEntry::GES_EVER_ACCEPTED, 4);
00423 }
00424 }
00425
00426
00427 if (variable >= 0x8C && variable <= 0xEC) {
00428 const GoodsEntry *g = &this->goods[GB(variable - 0x8C, 3, 4)];
00429 switch (GB(variable - 0x8C, 0, 3)) {
00430 case 0: return g->cargo.Count();
00431 case 1: return GB(min(g->cargo.Count(), 4095), 0, 4) | (GB(g->acceptance_pickup, GoodsEntry::GES_ACCEPTANCE, 1) << 7);
00432 case 2: return g->days_since_pickup;
00433 case 3: return g->rating;
00434 case 4: return g->cargo.Source();
00435 case 5: return g->cargo.DaysInTransit();
00436 case 6: return g->last_speed;
00437 case 7: return g->last_age;
00438 }
00439 }
00440
00441 DEBUG(grf, 1, "Unhandled station variable 0x%X", variable);
00442
00443 *available = false;
00444 return UINT_MAX;
00445 }
00446
00447 uint32 Waypoint::GetNewGRFVariable(const ResolverObject *object, byte variable, byte parameter, bool *available) const
00448 {
00449 switch (variable) {
00450 case 0x48: return 0;
00451 case 0x8A: return HVOT_WAYPOINT;
00452 case 0xF1: return 0;
00453 case 0xF2: return 0;
00454 case 0xF3: return 0;
00455 case 0xF6: return 0;
00456 case 0xF7: return 0;
00457 }
00458
00459
00460 if (variable >= 0x60 && variable <= 0x65) {
00461 return 0;
00462 }
00463
00464
00465 if (variable >= 0x8C && variable <= 0xEC) {
00466 switch (GB(variable - 0x8C, 0, 3)) {
00467 case 3: return INITIAL_STATION_RATING;
00468 case 4: return INVALID_STATION;
00469 default: return 0;
00470 }
00471 }
00472
00473 DEBUG(grf, 1, "Unhandled station variable 0x%X", variable);
00474
00475 *available = false;
00476 return UINT_MAX;
00477 }
00478
00479 static const SpriteGroup *StationResolveReal(const ResolverObject *object, const RealSpriteGroup *group)
00480 {
00481 const BaseStation *bst = object->u.station.st;
00482 const StationSpec *statspec = object->u.station.statspec;
00483 uint set;
00484
00485 uint cargo = 0;
00486 CargoID cargo_type = object->u.station.cargo_type;
00487
00488 if (bst == NULL || statspec->cls_id == STAT_CLASS_WAYP) {
00489 return group->loading[0];
00490 }
00491
00492 const Station *st = Station::From(bst);
00493
00494 switch (cargo_type) {
00495 case CT_INVALID:
00496 case CT_DEFAULT_NA:
00497 case CT_PURCHASE:
00498 cargo = 0;
00499 break;
00500
00501 case CT_DEFAULT:
00502 for (cargo_type = 0; cargo_type < NUM_CARGO; cargo_type++) {
00503 cargo += st->goods[cargo_type].cargo.Count();
00504 }
00505 break;
00506
00507 default:
00508 cargo = st->goods[cargo_type].cargo.Count();
00509 break;
00510 }
00511
00512 if (HasBit(statspec->flags, SSF_DIV_BY_STATION_SIZE)) cargo /= (st->train_station.w + st->train_station.h);
00513 cargo = min(0xfff, cargo);
00514
00515 if (cargo > statspec->cargo_threshold) {
00516 if (group->num_loading > 0) {
00517 set = ((cargo - statspec->cargo_threshold) * group->num_loading) / (4096 - statspec->cargo_threshold);
00518 return group->loading[set];
00519 }
00520 } else {
00521 if (group->num_loaded > 0) {
00522 set = (cargo * group->num_loaded) / (statspec->cargo_threshold + 1);
00523 return group->loaded[set];
00524 }
00525 }
00526
00527 return group->loading[0];
00528 }
00529
00530
00537 void StationStorePSA(ResolverObject *object, uint pos, int32 value)
00538 {
00539
00540 BaseStation *st = object->u.station.st;
00541 if (object->scope != VSG_SCOPE_PARENT || st == NULL) return;
00542
00543 TownStorePSA(st->town, object->grffile, pos, value);
00544 }
00545
00546 static void NewStationResolver(ResolverObject *res, const StationSpec *statspec, BaseStation *st, TileIndex tile)
00547 {
00548 res->GetRandomBits = StationGetRandomBits;
00549 res->GetTriggers = StationGetTriggers;
00550 res->SetTriggers = StationSetTriggers;
00551 res->GetVariable = StationGetVariable;
00552 res->ResolveReal = StationResolveReal;
00553 res->StorePSA = StationStorePSA;
00554
00555 res->u.station.st = st;
00556 res->u.station.statspec = statspec;
00557 res->u.station.tile = tile;
00558 res->u.station.axis = INVALID_AXIS;
00559
00560 res->callback = CBID_NO_CALLBACK;
00561 res->callback_param1 = 0;
00562 res->callback_param2 = 0;
00563 res->ResetState();
00564
00565 res->grffile = (statspec != NULL ? statspec->grf_prop.grffile : NULL);
00566
00567
00568 _svc.valid = 0;
00569 }
00570
00571 static const SpriteGroup *ResolveStation(ResolverObject *object)
00572 {
00573 const SpriteGroup *group;
00574 CargoID ctype = CT_DEFAULT_NA;
00575
00576 if (object->u.station.st == NULL) {
00577
00578 ctype = CT_PURCHASE;
00579 } else if (Station::IsExpected(object->u.station.st)) {
00580 const Station *st = Station::From(object->u.station.st);
00581
00582 const CargoSpec *cs;
00583 FOR_ALL_CARGOSPECS(cs) {
00584 if (object->u.station.statspec->grf_prop.spritegroup[cs->Index()] != NULL &&
00585 !st->goods[cs->Index()].cargo.Empty()) {
00586 ctype = cs->Index();
00587 break;
00588 }
00589 }
00590 }
00591
00592 group = object->u.station.statspec->grf_prop.spritegroup[ctype];
00593 if (group == NULL) {
00594 ctype = CT_DEFAULT;
00595 group = object->u.station.statspec->grf_prop.spritegroup[ctype];
00596 }
00597
00598 if (group == NULL) return NULL;
00599
00600
00601 object->u.station.cargo_type = ctype;
00602
00603 return SpriteGroup::Resolve(group, object);
00604 }
00605
00614 SpriteID GetCustomStationRelocation(const StationSpec *statspec, BaseStation *st, TileIndex tile, uint32 var10)
00615 {
00616 const SpriteGroup *group;
00617 ResolverObject object;
00618
00619 NewStationResolver(&object, statspec, st, tile);
00620 object.callback_param1 = var10;
00621
00622 group = ResolveStation(&object);
00623 if (group == NULL || group->type != SGT_RESULT) return 0;
00624 return group->GetResult() - 0x42D;
00625 }
00626
00636 SpriteID GetCustomStationFoundationRelocation(const StationSpec *statspec, BaseStation *st, TileIndex tile, uint layout, uint edge_info)
00637 {
00638 const SpriteGroup *group;
00639 ResolverObject object;
00640
00641 NewStationResolver(&object, statspec, st, tile);
00642 object.callback_param1 = 2;
00643 object.callback_param2 = layout | (edge_info << 16);
00644
00645 ClearRegister(0x100);
00646 group = ResolveStation(&object);
00647 if (group == NULL || group->type != SGT_RESULT) return 0;
00648 return group->GetResult() + GetRegister(0x100);
00649 }
00650
00651
00652 uint16 GetStationCallback(CallbackID callback, uint32 param1, uint32 param2, const StationSpec *statspec, BaseStation *st, TileIndex tile)
00653 {
00654 const SpriteGroup *group;
00655 ResolverObject object;
00656
00657 NewStationResolver(&object, statspec, st, tile);
00658
00659 object.callback = callback;
00660 object.callback_param1 = param1;
00661 object.callback_param2 = param2;
00662
00663 group = ResolveStation(&object);
00664 if (group == NULL) return CALLBACK_FAILED;
00665 return group->GetCallbackResult();
00666 }
00667
00678 CommandCost PerformStationTileSlopeCheck(TileIndex north_tile, TileIndex cur_tile, const StationSpec *statspec, Axis axis, byte plat_len, byte numtracks)
00679 {
00680 TileIndexDiff diff = cur_tile - north_tile;
00681 Slope slope = GetTileSlope(cur_tile);
00682
00683 ResolverObject object;
00684 NewStationResolver(&object, statspec, NULL, cur_tile);
00685
00686 object.callback = CBID_STATION_LAND_SLOPE_CHECK;
00687 object.callback_param1 = slope << 4 | (slope ^ (axis == AXIS_Y && HasBit(slope, CORNER_W) != HasBit(slope, CORNER_E) ? SLOPE_EW : 0));
00688 object.callback_param2 = numtracks << 24 | plat_len << 16 | (axis == AXIS_Y ? TileX(diff) << 8 | TileY(diff) : TileY(diff) << 8 | TileX(diff));
00689 object.u.station.axis = axis;
00690
00691 const SpriteGroup *group = ResolveStation(&object);
00692 uint16 cb_res = group != NULL ? group->GetCallbackResult() : CALLBACK_FAILED;
00693
00694
00695 if (cb_res == CALLBACK_FAILED) return CommandCost();
00696
00697
00698 if (statspec->grf_prop.grffile->grf_version < 8) ToggleBit(cb_res, 10);
00699 return GetErrorMessageFromLocationCallbackResult(cb_res, statspec->grf_prop.grffile->grfid, STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION);
00700 }
00701
00702
00710 int AllocateSpecToStation(const StationSpec *statspec, BaseStation *st, bool exec)
00711 {
00712 uint i;
00713
00714 if (statspec == NULL || st == NULL) return 0;
00715
00716 for (i = 1; i < st->num_specs && i < MAX_SPECLIST; i++) {
00717 if (st->speclist[i].spec == NULL && st->speclist[i].grfid == 0) break;
00718 }
00719
00720 if (i == MAX_SPECLIST) {
00721
00722
00723
00724
00725
00726 for (i = 1; i < st->num_specs && i < MAX_SPECLIST; i++) {
00727 if (st->speclist[i].spec == statspec) return i;
00728 }
00729
00730 return -1;
00731 }
00732
00733 if (exec) {
00734 if (i >= st->num_specs) {
00735 st->num_specs = i + 1;
00736 st->speclist = ReallocT(st->speclist, st->num_specs);
00737
00738 if (st->num_specs == 2) {
00739
00740 st->speclist[0].spec = NULL;
00741 st->speclist[0].grfid = 0;
00742 st->speclist[0].localidx = 0;
00743 }
00744 }
00745
00746 st->speclist[i].spec = statspec;
00747 st->speclist[i].grfid = statspec->grf_prop.grffile->grfid;
00748 st->speclist[i].localidx = statspec->grf_prop.local_id;
00749 }
00750
00751 return i;
00752 }
00753
00754
00761 void DeallocateSpecFromStation(BaseStation *st, byte specindex)
00762 {
00763
00764 if (specindex == 0) return;
00765
00766 ETileArea area = ETileArea(st, INVALID_TILE, TA_WHOLE);
00767
00768 TILE_AREA_LOOP(tile, area) {
00769 if (st->TileBelongsToRailStation(tile) && GetCustomStationSpecIndex(tile) == specindex) {
00770 return;
00771 }
00772 }
00773
00774
00775 st->speclist[specindex].spec = NULL;
00776 st->speclist[specindex].grfid = 0;
00777 st->speclist[specindex].localidx = 0;
00778
00779
00780 if (specindex == st->num_specs - 1) {
00781 for (; st->speclist[st->num_specs - 1].grfid == 0 && st->num_specs > 1; st->num_specs--) {}
00782
00783 if (st->num_specs > 1) {
00784 st->speclist = ReallocT(st->speclist, st->num_specs);
00785 } else {
00786 free(st->speclist);
00787 st->num_specs = 0;
00788 st->speclist = NULL;
00789 st->cached_anim_triggers = 0;
00790 return;
00791 }
00792 }
00793
00794 StationUpdateAnimTriggers(st);
00795 }
00796
00807 bool DrawStationTile(int x, int y, RailType railtype, Axis axis, StationClassID sclass, uint station)
00808 {
00809 const StationSpec *statspec;
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 statspec = StationClass::Get(sclass, 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 IsStationTileElectrifiable(TileIndex tile)
00904 {
00905 const StationSpec *statspec = GetStationSpec(tile);
00906
00907 return statspec == NULL ||
00908 HasBit(statspec->pylons, GetStationGfx(tile)) ||
00909 !HasBit(statspec->wires, GetStationGfx(tile));
00910 }
00911
00913 uint16 GetAnimStationCallback(CallbackID callback, uint32 param1, uint32 param2, const StationSpec *statspec, BaseStation *st, TileIndex tile, int extra_data)
00914 {
00915 return GetStationCallback(callback, param1, param2, statspec, st, tile);
00916 }
00917
00919 struct StationAnimationBase : public AnimationBase<StationAnimationBase, StationSpec, BaseStation, int, GetAnimStationCallback> {
00920 static const CallbackID cb_animation_speed = CBID_STATION_ANIMATION_SPEED;
00921 static const CallbackID cb_animation_next_frame = CBID_STATION_ANIM_NEXT_FRAME;
00922
00923 static const StationCallbackMask cbm_animation_speed = CBM_STATION_ANIMATION_SPEED;
00924 static const StationCallbackMask cbm_animation_next_frame = CBM_STATION_ANIMATION_NEXT_FRAME;
00925 };
00926
00927 void AnimateStationTile(TileIndex tile)
00928 {
00929 const StationSpec *ss = GetStationSpec(tile);
00930 if (ss == NULL) return;
00931
00932 StationAnimationBase::AnimateTile(ss, BaseStation::GetByTile(tile), tile, HasBit(ss->flags, SSF_CB141_RANDOM_BITS));
00933 }
00934
00935 void TriggerStationAnimation(BaseStation *st, TileIndex tile, StationAnimationTrigger trigger, CargoID cargo_type)
00936 {
00937
00938 static const TriggerArea tas[] = {
00939 TA_TILE, TA_WHOLE, TA_WHOLE, TA_PLATFORM, TA_PLATFORM, TA_PLATFORM, TA_WHOLE
00940 };
00941
00942
00943 if (st == NULL) st = BaseStation::GetByTile(tile);
00944
00945
00946
00947 if (!HasBit(st->cached_anim_triggers, trigger)) return;
00948
00949 uint16 random_bits = Random();
00950 ETileArea area = ETileArea(st, tile, tas[trigger]);
00951
00952
00953 TILE_AREA_LOOP(tile, area) {
00954 if (st->TileBelongsToRailStation(tile)) {
00955 const StationSpec *ss = GetStationSpec(tile);
00956 if (ss != NULL && HasBit(ss->animation.triggers, trigger)) {
00957 CargoID cargo;
00958 if (cargo_type == CT_INVALID) {
00959 cargo = CT_INVALID;
00960 } else {
00961 cargo = GetReverseCargoTranslation(cargo_type, ss->grf_prop.grffile);
00962 }
00963 StationAnimationBase::ChangeAnimationFrame(CBID_STATION_ANIM_START_STOP, ss, st, tile, (random_bits << 16) | Random(), (uint8)trigger | (cargo << 8));
00964 }
00965 }
00966 }
00967 }
00968
00973 void StationUpdateAnimTriggers(BaseStation *st)
00974 {
00975 st->cached_anim_triggers = 0;
00976
00977
00978
00979 for (uint i = 0; i < st->num_specs; i++) {
00980 const StationSpec *ss = st->speclist[i].spec;
00981 if (ss != NULL) st->cached_anim_triggers |= ss->animation.triggers;
00982 }
00983 }
00984
00990 void GetStationResolver(ResolverObject *ro, uint index)
00991 {
00992 NewStationResolver(ro, GetStationSpec(index), Station::GetByTile(index), index);
00993 }