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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 NUM_STATIONSSPECS_PER_STATION = 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(end + delta, tile); end += delta) { }
00077 for (start = tile; IsRailStationTile(start - delta) && IsCompatibleTrainStationTile(start - delta, tile); 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 uint32 StationScopeResolver::GetRandomBits() const
00225 {
00226 return (this->st == NULL ? 0 : this->st->random_bits) | (this->tile == INVALID_TILE ? 0 : GetStationTileRandomBits(this->tile) << 16);
00227 }
00228
00229
00230 uint32 StationScopeResolver::GetTriggers() const
00231 {
00232 return this->st == NULL ? 0 : this->st->waiting_triggers;
00233 }
00234
00235
00236 void StationScopeResolver::SetTriggers(int triggers) const
00237 {
00238 BaseStation *st = const_cast<BaseStation *>(this->st);
00239 assert(st != NULL);
00240 st->waiting_triggers = triggers;
00241 }
00242
00248 static struct {
00249 uint32 v40;
00250 uint32 v41;
00251 uint32 v45;
00252 uint32 v46;
00253 uint32 v47;
00254 uint32 v49;
00255 uint8 valid;
00256 } _svc;
00257
00263 TownScopeResolver *StationResolverObject::GetTown()
00264 {
00265 if (this->town_scope == NULL) {
00266 Town *t = NULL;
00267 if (this->station_scope.st != NULL) {
00268 t = this->station_scope.st->town;
00269 } else if (this->station_scope.tile != INVALID_TILE) {
00270 t = ClosestTownFromTile(this->station_scope.tile, UINT_MAX);
00271 }
00272 if (t == NULL) return NULL;
00273 this->town_scope = new TownScopeResolver(*this, t, this->station_scope.st == NULL);
00274 }
00275 return this->town_scope;
00276 }
00277
00278 uint32 StationScopeResolver::GetVariable(byte variable, uint32 parameter, bool *available) const
00279 {
00280 if (this->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 (this->axis != INVALID_AXIS && this->tile != INVALID_TILE) {
00293 TileIndex tile = this->tile;
00294 if (parameter != 0) tile = GetNearbyTile(parameter, tile, true, this->axis);
00295
00296 Slope tileh = GetTileSlope(tile);
00297 bool swap = (this->axis == AXIS_Y && HasBit(tileh, CORNER_W) != HasBit(tileh, CORNER_E));
00298
00299 return GetNearbyTileInformation(tile, this->ro.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(this->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(this->tile, true, false, false); SetBit(_svc.valid, 1); }
00318 return _svc.v41;
00319
00320 case 0x42: return GetTerrainType(this->tile) | (GetReverseRailTypeTranslation(GetRailType(this->tile), this->statspec->grf_prop.grffile) << 8);
00321 case 0x43: return GetCompanyInfo(this->st->owner);
00322 case 0x44: return HasStationReservation(this->tile) ? 7 : 4;
00323 case 0x45:
00324 if (!HasBit(_svc.valid, 2)) { _svc.v45 = GetRailContinuationInfo(this->tile); SetBit(_svc.valid, 2); }
00325 return _svc.v45;
00326
00327 case 0x46:
00328 if (!HasBit(_svc.valid, 3)) { _svc.v46 = GetPlatformInfoHelper(this->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(this->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(this->tile, false, true, false); SetBit(_svc.valid, 5); }
00337 return _svc.v49;
00338
00339 case 0x4A:
00340 return GetAnimationFrame(this->tile);
00341
00342
00343
00344 case 0x66: {
00345 TileIndex tile = this->tile;
00346 if (parameter != 0) tile = GetNearbyTile(parameter, tile);
00347 return this->st->TileBelongsToRailStation(tile) ? GetAnimationFrame(tile) : UINT_MAX;
00348 }
00349
00350 case 0x67: {
00351 Axis axis = GetRailStationAxis(this->tile);
00352 TileIndex tile = this->tile;
00353 if (parameter != 0) tile = GetNearbyTile(parameter, tile);
00354
00355 Slope tileh = GetTileSlope(tile);
00356 bool swap = (axis == AXIS_Y && HasBit(tileh, CORNER_W) != HasBit(tileh, CORNER_E));
00357
00358 return GetNearbyTileInformation(tile, this->ro.grffile->grf_version >= 8) ^ (swap ? SLOPE_EW : 0);
00359 }
00360
00361 case 0x68: {
00362 TileIndex nearby_tile = GetNearbyTile(parameter, this->tile);
00363
00364 if (!HasStationTileRail(nearby_tile)) return 0xFFFFFFFF;
00365
00366 uint32 grfid = this->st->speclist[GetCustomStationSpecIndex(this->tile)].grfid;
00367 bool perpendicular = GetRailStationAxis(this->tile) != GetRailStationAxis(nearby_tile);
00368 bool same_station = this->st->TileBelongsToRailStation(nearby_tile);
00369 uint32 res = GB(GetStationGfx(nearby_tile), 1, 2) << 12 | !!perpendicular << 11 | !!same_station << 10;
00370
00371 if (IsCustomStationSpecIndex(nearby_tile)) {
00372 const StationSpecList ssl = BaseStation::GetByTile(nearby_tile)->speclist[GetCustomStationSpecIndex(nearby_tile)];
00373 res |= 1 << (ssl.grfid != grfid ? 9 : 8) | ssl.localidx;
00374 }
00375 return res;
00376 }
00377
00378
00379 case 0x82: return 50;
00380 case 0x84: return this->st->string_id;
00381 case 0x86: return 0;
00382 case 0xF0: return this->st->facilities;
00383 case 0xFA: return Clamp(this->st->build_date - DAYS_TILL_ORIGINAL_BASE_YEAR, 0, 65535);
00384 }
00385
00386 return this->st->GetNewGRFVariable(this->ro, variable, parameter, available);
00387 }
00388
00389 uint32 Station::GetNewGRFVariable(const ResolverObject &object, byte variable, byte parameter, bool *available) const
00390 {
00391 switch (variable) {
00392 case 0x48: {
00393 CargoID cargo_type;
00394 uint32 value = 0;
00395
00396 for (cargo_type = 0; cargo_type < NUM_CARGO; cargo_type++) {
00397 if (HasBit(this->goods[cargo_type].acceptance_pickup, GoodsEntry::GES_ACCEPTANCE)) SetBit(value, cargo_type);
00398 }
00399 return value;
00400 }
00401
00402 case 0x8A: return this->had_vehicle_of_type;
00403 case 0xF1: return (this->airport.tile != INVALID_TILE) ? this->airport.GetSpec()->ttd_airport_type : ATP_TTDP_LARGE;
00404 case 0xF2: return (this->truck_stops != NULL) ? this->truck_stops->status : 0;
00405 case 0xF3: return (this->bus_stops != NULL) ? this->bus_stops->status : 0;
00406 case 0xF6: return this->airport.flags;
00407 case 0xF7: return GB(this->airport.flags, 8, 8);
00408 }
00409
00410
00411 if ((variable >= 0x60 && variable <= 0x65) || variable == 0x69) {
00412 CargoID c = GetCargoTranslation(parameter, object.grffile);
00413
00414 if (c == CT_INVALID) {
00415 switch (variable) {
00416 case 0x62: return 0xFFFFFFFF;
00417 case 0x64: return 0xFF00;
00418 default: return 0;
00419 }
00420 }
00421 const GoodsEntry *ge = &this->goods[c];
00422
00423 switch (variable) {
00424 case 0x60: return min(ge->cargo.TotalCount(), 4095);
00425 case 0x61: return ge->HasVehicleEverTriedLoading() ? ge->time_since_pickup : 0;
00426 case 0x62: return ge->HasRating() ? ge->rating : 0xFFFFFFFF;
00427 case 0x63: return ge->cargo.DaysInTransit();
00428 case 0x64: return ge->HasVehicleEverTriedLoading() ? ge->last_speed | (ge->last_age << 8) : 0xFF00;
00429 case 0x65: return GB(ge->acceptance_pickup, GoodsEntry::GES_ACCEPTANCE, 1) << 3;
00430 case 0x69: {
00431 assert_compile((int)GoodsEntry::GES_EVER_ACCEPTED + 1 == (int)GoodsEntry::GES_LAST_MONTH);
00432 assert_compile((int)GoodsEntry::GES_EVER_ACCEPTED + 2 == (int)GoodsEntry::GES_CURRENT_MONTH);
00433 assert_compile((int)GoodsEntry::GES_EVER_ACCEPTED + 3 == (int)GoodsEntry::GES_ACCEPTED_BIGTICK);
00434 return GB(ge->acceptance_pickup, GoodsEntry::GES_EVER_ACCEPTED, 4);
00435 }
00436 }
00437 }
00438
00439
00440 if (variable >= 0x8C && variable <= 0xEC) {
00441 const GoodsEntry *g = &this->goods[GB(variable - 0x8C, 3, 4)];
00442 switch (GB(variable - 0x8C, 0, 3)) {
00443 case 0: return g->cargo.TotalCount();
00444 case 1: return GB(min(g->cargo.TotalCount(), 4095), 0, 4) | (GB(g->acceptance_pickup, GoodsEntry::GES_ACCEPTANCE, 1) << 7);
00445 case 2: return g->time_since_pickup;
00446 case 3: return g->rating;
00447 case 4: return g->cargo.Source();
00448 case 5: return g->cargo.DaysInTransit();
00449 case 6: return g->last_speed;
00450 case 7: return g->last_age;
00451 }
00452 }
00453
00454 DEBUG(grf, 1, "Unhandled station variable 0x%X", variable);
00455
00456 *available = false;
00457 return UINT_MAX;
00458 }
00459
00460 uint32 Waypoint::GetNewGRFVariable(const ResolverObject &object, byte variable, byte parameter, bool *available) const
00461 {
00462 switch (variable) {
00463 case 0x48: return 0;
00464 case 0x8A: return HVOT_WAYPOINT;
00465 case 0xF1: return 0;
00466 case 0xF2: return 0;
00467 case 0xF3: return 0;
00468 case 0xF6: return 0;
00469 case 0xF7: return 0;
00470 }
00471
00472
00473 if (variable >= 0x60 && variable <= 0x65) {
00474 return 0;
00475 }
00476
00477
00478 if (variable >= 0x8C && variable <= 0xEC) {
00479 switch (GB(variable - 0x8C, 0, 3)) {
00480 case 3: return INITIAL_STATION_RATING;
00481 case 4: return INVALID_STATION;
00482 default: return 0;
00483 }
00484 }
00485
00486 DEBUG(grf, 1, "Unhandled station variable 0x%X", variable);
00487
00488 *available = false;
00489 return UINT_MAX;
00490 }
00491
00492 const SpriteGroup *StationResolverObject::ResolveReal(const RealSpriteGroup *group) const
00493 {
00494 if (this->station_scope.st == NULL || this->station_scope.statspec->cls_id == STAT_CLASS_WAYP) {
00495 return group->loading[0];
00496 }
00497
00498 uint cargo = 0;
00499 const Station *st = Station::From(this->station_scope.st);
00500
00501 switch (this->station_scope.cargo_type) {
00502 case CT_INVALID:
00503 case CT_DEFAULT_NA:
00504 case CT_PURCHASE:
00505 cargo = 0;
00506 break;
00507
00508 case CT_DEFAULT:
00509 for (CargoID cargo_type = 0; cargo_type < NUM_CARGO; cargo_type++) {
00510 cargo += st->goods[cargo_type].cargo.TotalCount();
00511 }
00512 break;
00513
00514 default:
00515 cargo = st->goods[this->station_scope.cargo_type].cargo.TotalCount();
00516 break;
00517 }
00518
00519 if (HasBit(this->station_scope.statspec->flags, SSF_DIV_BY_STATION_SIZE)) cargo /= (st->train_station.w + st->train_station.h);
00520 cargo = min(0xfff, cargo);
00521
00522 if (cargo > this->station_scope.statspec->cargo_threshold) {
00523 if (group->num_loading > 0) {
00524 uint set = ((cargo - this->station_scope.statspec->cargo_threshold) * group->num_loading) / (4096 - this->station_scope.statspec->cargo_threshold);
00525 return group->loading[set];
00526 }
00527 } else {
00528 if (group->num_loaded > 0) {
00529 uint set = (cargo * group->num_loaded) / (this->station_scope.statspec->cargo_threshold + 1);
00530 return group->loaded[set];
00531 }
00532 }
00533
00534 return group->loading[0];
00535 }
00536
00546 StationResolverObject::StationResolverObject(const StationSpec *statspec, BaseStation *st, TileIndex tile,
00547 CallbackID callback, uint32 callback_param1, uint32 callback_param2)
00548 : ResolverObject((statspec != NULL ? statspec->grf_prop.grffile : NULL), callback, callback_param1, callback_param2),
00549 station_scope(*this, statspec, st, tile), town_scope(NULL)
00550 {
00551
00552 _svc.valid = 0;
00553 }
00554
00555 StationResolverObject::~StationResolverObject()
00556 {
00557 delete this->town_scope;
00558 }
00559
00567 StationScopeResolver::StationScopeResolver(ResolverObject &ro, const StationSpec *statspec, BaseStation *st, TileIndex tile)
00568 : ScopeResolver(ro)
00569 {
00570 this->tile = tile;
00571 this->st = st;
00572 this->statspec = statspec;
00573 this->cargo_type = CT_INVALID;
00574 this->axis = INVALID_AXIS;
00575 }
00576
00577 static const SpriteGroup *ResolveStation(StationResolverObject &object)
00578 {
00579 CargoID ctype = CT_DEFAULT_NA;
00580
00581 if (object.station_scope.st == NULL) {
00582
00583 ctype = CT_PURCHASE;
00584 } else if (Station::IsExpected(object.station_scope.st)) {
00585 const Station *st = Station::From(object.station_scope.st);
00586
00587 const CargoSpec *cs;
00588 FOR_ALL_CARGOSPECS(cs) {
00589 if (object.station_scope.statspec->grf_prop.spritegroup[cs->Index()] != NULL &&
00590 st->goods[cs->Index()].cargo.TotalCount() > 0) {
00591 ctype = cs->Index();
00592 break;
00593 }
00594 }
00595 }
00596
00597 const SpriteGroup *group = object.station_scope.statspec->grf_prop.spritegroup[ctype];
00598 if (group == NULL) {
00599 ctype = CT_DEFAULT;
00600 group = object.station_scope.statspec->grf_prop.spritegroup[ctype];
00601 if (group == NULL) return NULL;
00602 }
00603
00604
00605 object.station_scope.cargo_type = ctype;
00606
00607 return SpriteGroup::Resolve(group, object);
00608 }
00609
00618 SpriteID GetCustomStationRelocation(const StationSpec *statspec, BaseStation *st, TileIndex tile, uint32 var10)
00619 {
00620 StationResolverObject object(statspec, st, tile, CBID_NO_CALLBACK, var10);
00621 const SpriteGroup *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
00638 StationResolverObject object(statspec, st, tile, CBID_NO_CALLBACK, 2, layout | (edge_info << 16));
00639
00640 ClearRegister(0x100);
00641 const SpriteGroup *group = ResolveStation(object);
00642 if (group == NULL || group->type != SGT_RESULT) return 0;
00643 return group->GetResult() + GetRegister(0x100);
00644 }
00645
00646
00647 uint16 GetStationCallback(CallbackID callback, uint32 param1, uint32 param2, const StationSpec *statspec, BaseStation *st, TileIndex tile)
00648 {
00649 StationResolverObject object(statspec, st, tile, callback, param1, param2);
00650 const SpriteGroup *group = ResolveStation(object);
00651 if (group == NULL) return CALLBACK_FAILED;
00652 return group->GetCallbackResult();
00653 }
00654
00665 CommandCost PerformStationTileSlopeCheck(TileIndex north_tile, TileIndex cur_tile, const StationSpec *statspec, Axis axis, byte plat_len, byte numtracks)
00666 {
00667 TileIndexDiff diff = cur_tile - north_tile;
00668 Slope slope = GetTileSlope(cur_tile);
00669
00670 StationResolverObject object(statspec, NULL, cur_tile, CBID_STATION_LAND_SLOPE_CHECK,
00671 (slope << 4) | (slope ^ (axis == AXIS_Y && HasBit(slope, CORNER_W) != HasBit(slope, CORNER_E) ? SLOPE_EW : 0)),
00672 (numtracks << 24) | (plat_len << 16) | (axis == AXIS_Y ? TileX(diff) << 8 | TileY(diff) : TileY(diff) << 8 | TileX(diff)));
00673 object.station_scope.axis = axis;
00674
00675 const SpriteGroup *group = ResolveStation(object);
00676 uint16 cb_res = group != NULL ? group->GetCallbackResult() : CALLBACK_FAILED;
00677
00678
00679 if (cb_res == CALLBACK_FAILED) return CommandCost();
00680
00681
00682 if (statspec->grf_prop.grffile->grf_version < 8) ToggleBit(cb_res, 10);
00683 return GetErrorMessageFromLocationCallbackResult(cb_res, statspec->grf_prop.grffile->grfid, STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION);
00684 }
00685
00686
00694 int AllocateSpecToStation(const StationSpec *statspec, BaseStation *st, bool exec)
00695 {
00696 uint i;
00697
00698 if (statspec == NULL || st == NULL) return 0;
00699
00700 for (i = 1; i < st->num_specs && i < NUM_STATIONSSPECS_PER_STATION; i++) {
00701 if (st->speclist[i].spec == NULL && st->speclist[i].grfid == 0) break;
00702 }
00703
00704 if (i == NUM_STATIONSSPECS_PER_STATION) {
00705
00706
00707
00708
00709
00710 for (i = 1; i < st->num_specs && i < NUM_STATIONSSPECS_PER_STATION; i++) {
00711 if (st->speclist[i].spec == statspec) return i;
00712 }
00713
00714 return -1;
00715 }
00716
00717 if (exec) {
00718 if (i >= st->num_specs) {
00719 st->num_specs = i + 1;
00720 st->speclist = ReallocT(st->speclist, st->num_specs);
00721
00722 if (st->num_specs == 2) {
00723
00724 st->speclist[0].spec = NULL;
00725 st->speclist[0].grfid = 0;
00726 st->speclist[0].localidx = 0;
00727 }
00728 }
00729
00730 st->speclist[i].spec = statspec;
00731 st->speclist[i].grfid = statspec->grf_prop.grffile->grfid;
00732 st->speclist[i].localidx = statspec->grf_prop.local_id;
00733
00734 StationUpdateCachedTriggers(st);
00735 }
00736
00737 return i;
00738 }
00739
00740
00747 void DeallocateSpecFromStation(BaseStation *st, byte specindex)
00748 {
00749
00750 if (specindex == 0) return;
00751
00752 ETileArea area = ETileArea(st, INVALID_TILE, TA_WHOLE);
00753
00754 TILE_AREA_LOOP(tile, area) {
00755 if (st->TileBelongsToRailStation(tile) && GetCustomStationSpecIndex(tile) == specindex) {
00756 return;
00757 }
00758 }
00759
00760
00761 st->speclist[specindex].spec = NULL;
00762 st->speclist[specindex].grfid = 0;
00763 st->speclist[specindex].localidx = 0;
00764
00765
00766 if (specindex == st->num_specs - 1) {
00767 for (; st->speclist[st->num_specs - 1].grfid == 0 && st->num_specs > 1; st->num_specs--) {}
00768
00769 if (st->num_specs > 1) {
00770 st->speclist = ReallocT(st->speclist, st->num_specs);
00771 } else {
00772 free(st->speclist);
00773 st->num_specs = 0;
00774 st->speclist = NULL;
00775 st->cached_anim_triggers = 0;
00776 st->cached_cargo_triggers = 0;
00777 return;
00778 }
00779 }
00780
00781 StationUpdateCachedTriggers(st);
00782 }
00783
00794 bool DrawStationTile(int x, int y, RailType railtype, Axis axis, StationClassID sclass, uint station)
00795 {
00796 const DrawTileSprites *sprites = NULL;
00797 const RailtypeInfo *rti = GetRailTypeInfo(railtype);
00798 PaletteID palette = COMPANY_SPRITE_COLOUR(_local_company);
00799 uint tile = 2;
00800
00801 const StationSpec *statspec = StationClass::Get(sclass)->GetSpec(station);
00802 if (statspec == NULL) return false;
00803
00804 if (HasBit(statspec->callback_mask, CBM_STATION_SPRITE_LAYOUT)) {
00805 uint16 callback = GetStationCallback(CBID_STATION_SPRITE_LAYOUT, 0x2110000, 0, statspec, NULL, INVALID_TILE);
00806 if (callback != CALLBACK_FAILED) tile = callback;
00807 }
00808
00809 uint32 total_offset = rti->GetRailtypeSpriteOffset();
00810 uint32 relocation = 0;
00811 uint32 ground_relocation = 0;
00812 const NewGRFSpriteLayout *layout = NULL;
00813 DrawTileSprites tmp_rail_layout;
00814
00815 if (statspec->renderdata == NULL) {
00816 sprites = GetStationTileLayout(STATION_RAIL, tile + axis);
00817 } else {
00818 layout = &statspec->renderdata[(tile < statspec->tiles) ? tile + axis : (uint)axis];
00819 if (!layout->NeedsPreprocessing()) {
00820 sprites = layout;
00821 layout = NULL;
00822 }
00823 }
00824
00825 if (layout != NULL) {
00826
00827 bool separate_ground = HasBit(statspec->flags, SSF_SEPARATE_GROUND);
00828 uint32 var10_values = layout->PrepareLayout(total_offset, rti->fallback_railtype, 0, 0, separate_ground);
00829 uint8 var10;
00830 FOR_EACH_SET_BIT(var10, var10_values) {
00831 uint32 var10_relocation = GetCustomStationRelocation(statspec, NULL, INVALID_TILE, var10);
00832 layout->ProcessRegisters(var10, var10_relocation, separate_ground);
00833 }
00834
00835 tmp_rail_layout.seq = layout->GetLayout(&tmp_rail_layout.ground);
00836 sprites = &tmp_rail_layout;
00837 total_offset = 0;
00838 } else {
00839
00840 ground_relocation = relocation = GetCustomStationRelocation(statspec, NULL, INVALID_TILE, 0);
00841 if (HasBit(sprites->ground.sprite, SPRITE_MODIFIER_CUSTOM_SPRITE)) {
00842 ground_relocation = GetCustomStationRelocation(statspec, NULL, INVALID_TILE, 1);
00843 }
00844 ground_relocation += rti->fallback_railtype;
00845 }
00846
00847 SpriteID image = sprites->ground.sprite;
00848 PaletteID pal = sprites->ground.pal;
00849 RailTrackOffset overlay_offset;
00850 if (rti->UsesOverlay() && SplitGroundSpriteForOverlay(NULL, &image, &overlay_offset)) {
00851 SpriteID ground = GetCustomRailSprite(rti, INVALID_TILE, RTSG_GROUND);
00852 DrawSprite(image, PAL_NONE, x, y);
00853 DrawSprite(ground + overlay_offset, PAL_NONE, x, y);
00854 } else {
00855 image += HasBit(image, SPRITE_MODIFIER_CUSTOM_SPRITE) ? ground_relocation : total_offset;
00856 if (HasBit(pal, SPRITE_MODIFIER_CUSTOM_SPRITE)) pal += ground_relocation;
00857 DrawSprite(image, GroundSpritePaletteTransform(image, pal, palette), x, y);
00858 }
00859
00860 DrawRailTileSeqInGUI(x, y, sprites, total_offset, relocation, palette);
00861
00862 return true;
00863 }
00864
00865
00866 const StationSpec *GetStationSpec(TileIndex t)
00867 {
00868 if (!IsCustomStationSpecIndex(t)) return NULL;
00869
00870 const BaseStation *st = BaseStation::GetByTile(t);
00871 uint specindex = GetCustomStationSpecIndex(t);
00872 return specindex < st->num_specs ? st->speclist[specindex].spec : NULL;
00873 }
00874
00875
00882 bool IsStationTileBlocked(TileIndex tile)
00883 {
00884 const StationSpec *statspec = GetStationSpec(tile);
00885
00886 return statspec != NULL && HasBit(statspec->blocked, GetStationGfx(tile));
00887 }
00888
00895 bool CanStationTileHavePylons(TileIndex tile)
00896 {
00897 const StationSpec *statspec = GetStationSpec(tile);
00898 uint gfx = GetStationGfx(tile);
00899
00900 return statspec != NULL ? HasBit(statspec->pylons, gfx) : gfx < 4;
00901 }
00902
00909 bool CanStationTileHaveWires(TileIndex tile)
00910 {
00911 const StationSpec *statspec = GetStationSpec(tile);
00912 return statspec == NULL || !HasBit(statspec->wires, GetStationGfx(tile));
00913 }
00914
00916 uint16 GetAnimStationCallback(CallbackID callback, uint32 param1, uint32 param2, const StationSpec *statspec, BaseStation *st, TileIndex tile, int extra_data)
00917 {
00918 return GetStationCallback(callback, param1, param2, statspec, st, tile);
00919 }
00920
00922 struct StationAnimationBase : public AnimationBase<StationAnimationBase, StationSpec, BaseStation, int, GetAnimStationCallback> {
00923 static const CallbackID cb_animation_speed = CBID_STATION_ANIMATION_SPEED;
00924 static const CallbackID cb_animation_next_frame = CBID_STATION_ANIM_NEXT_FRAME;
00925
00926 static const StationCallbackMask cbm_animation_speed = CBM_STATION_ANIMATION_SPEED;
00927 static const StationCallbackMask cbm_animation_next_frame = CBM_STATION_ANIMATION_NEXT_FRAME;
00928 };
00929
00930 void AnimateStationTile(TileIndex tile)
00931 {
00932 const StationSpec *ss = GetStationSpec(tile);
00933 if (ss == NULL) return;
00934
00935 StationAnimationBase::AnimateTile(ss, BaseStation::GetByTile(tile), tile, HasBit(ss->flags, SSF_CB141_RANDOM_BITS));
00936 }
00937
00938 void TriggerStationAnimation(BaseStation *st, TileIndex tile, StationAnimationTrigger trigger, CargoID cargo_type)
00939 {
00940
00941 static const TriggerArea tas[] = {
00942 TA_TILE, TA_WHOLE, TA_WHOLE, TA_PLATFORM, TA_PLATFORM, TA_PLATFORM, TA_WHOLE
00943 };
00944
00945
00946 if (st == NULL) st = BaseStation::GetByTile(tile);
00947
00948
00949
00950 if (!HasBit(st->cached_anim_triggers, trigger)) return;
00951
00952 uint16 random_bits = Random();
00953 ETileArea area = ETileArea(st, tile, tas[trigger]);
00954
00955
00956 TILE_AREA_LOOP(tile, area) {
00957 if (st->TileBelongsToRailStation(tile)) {
00958 const StationSpec *ss = GetStationSpec(tile);
00959 if (ss != NULL && HasBit(ss->animation.triggers, trigger)) {
00960 CargoID cargo;
00961 if (cargo_type == CT_INVALID) {
00962 cargo = CT_INVALID;
00963 } else {
00964 cargo = ss->grf_prop.grffile->cargo_map[cargo_type];
00965 }
00966 StationAnimationBase::ChangeAnimationFrame(CBID_STATION_ANIM_START_STOP, ss, st, tile, (random_bits << 16) | Random(), (uint8)trigger | (cargo << 8));
00967 }
00968 }
00969 }
00970 }
00971
00979 void TriggerStationRandomisation(Station *st, TileIndex tile, StationRandomTrigger trigger, CargoID cargo_type)
00980 {
00981
00982 static const TriggerArea tas[] = {
00983 TA_WHOLE, TA_WHOLE, TA_PLATFORM, TA_PLATFORM, TA_PLATFORM, TA_PLATFORM
00984 };
00985
00986
00987 if (st == NULL) st = Station::GetByTile(tile);
00988
00989
00990
00991 if (st->cached_cargo_triggers == 0) return;
00992 if (cargo_type != CT_INVALID && !HasBit(st->cached_cargo_triggers, cargo_type)) return;
00993
00994 uint32 whole_reseed = 0;
00995 ETileArea area = ETileArea(st, tile, tas[trigger]);
00996
00997 uint32 empty_mask = 0;
00998 if (trigger == SRT_CARGO_TAKEN) {
00999
01000 for (CargoID i = 0; i < NUM_CARGO; i++) {
01001 if (st->goods[i].cargo.TotalCount() == 0) {
01002 SetBit(empty_mask, i);
01003 }
01004 }
01005 }
01006
01007
01008 uint8 trigger_bit = 1 << trigger;
01009
01010
01011 TILE_AREA_LOOP(tile, area) {
01012 if (st->TileBelongsToRailStation(tile)) {
01013 const StationSpec *ss = GetStationSpec(tile);
01014 if (ss == NULL) continue;
01015
01016
01017
01018 if (trigger == SRT_CARGO_TAKEN) {
01019 if ((ss->cargo_triggers & ~empty_mask) != 0) continue;
01020 }
01021
01022 if (cargo_type == CT_INVALID || HasBit(ss->cargo_triggers, cargo_type)) {
01023 StationResolverObject object(ss, st, tile, CBID_RANDOM_TRIGGER, 0);
01024 object.trigger = trigger_bit;
01025
01026 const SpriteGroup *group = ResolveStation(object);
01027 if (group == NULL) continue;
01028
01029 uint32 reseed = object.GetReseedSum();
01030 if (reseed != 0) {
01031 whole_reseed |= reseed;
01032 reseed >>= 16;
01033
01034
01035 uint8 random_bits = GetStationTileRandomBits(tile);
01036 random_bits &= ~reseed;
01037 random_bits |= Random() & reseed;
01038 SetStationTileRandomBits(tile, random_bits);
01039
01040 MarkTileDirtyByTile(tile);
01041 }
01042 }
01043 }
01044 }
01045
01046
01047 if ((whole_reseed & 0xFFFF) != 0) {
01048 st->random_bits &= ~whole_reseed;
01049 st->random_bits |= Random() & whole_reseed;
01050 }
01051 }
01052
01057 void StationUpdateCachedTriggers(BaseStation *st)
01058 {
01059 st->cached_anim_triggers = 0;
01060 st->cached_cargo_triggers = 0;
01061
01062
01063
01064 for (uint i = 0; i < st->num_specs; i++) {
01065 const StationSpec *ss = st->speclist[i].spec;
01066 if (ss != NULL) {
01067 st->cached_anim_triggers |= ss->animation.triggers;
01068 st->cached_cargo_triggers |= ss->cargo_triggers;
01069 }
01070 }
01071 }
01072