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00016 #include "stdafx.h"
00017 #include "newgrf_object.h"
00018 #include "viewport_func.h"
00019 #include "cmd_helper.h"
00020 #include "command_func.h"
00021 #include "town.h"
00022 #include "train.h"
00023 #include "ship.h"
00024 #include "roadveh.h"
00025 #include "pathfinder/yapf/yapf_cache.h"
00026 #include "newgrf_sound.h"
00027 #include "autoslope.h"
00028 #include "tunnelbridge_map.h"
00029 #include "strings_func.h"
00030 #include "date_func.h"
00031 #include "clear_func.h"
00032 #include "vehicle_func.h"
00033 #include "sound_func.h"
00034 #include "tunnelbridge.h"
00035 #include "cheat_type.h"
00036 #include "elrail_func.h"
00037 #include "pbs.h"
00038 #include "company_base.h"
00039 #include "newgrf_railtype.h"
00040 #include "object_base.h"
00041 #include "water.h"
00042 #include "company_gui.h"
00043
00044 #include "table/strings.h"
00045 #include "table/bridge_land.h"
00046
00047 BridgeSpec _bridge[MAX_BRIDGES];
00048 TileIndex _build_tunnel_endtile;
00049
00051 static const int BRIDGE_Z_START = 3;
00052
00054 void ResetBridges()
00055 {
00056
00057 for (BridgeType i = 0; i < MAX_BRIDGES; i++) {
00058 if (_bridge[i].sprite_table != NULL) {
00059 for (BridgePieces j = BRIDGE_PIECE_NORTH; j < BRIDGE_PIECE_INVALID; j++) free(_bridge[i].sprite_table[j]);
00060 free(_bridge[i].sprite_table);
00061 }
00062 }
00063
00064
00065 memset(&_bridge, 0, sizeof(_bridge));
00066
00067 memcpy(&_bridge, &_orig_bridge, sizeof(_orig_bridge));
00068 }
00069
00076 int CalcBridgeLenCostFactor(int length)
00077 {
00078 if (length < 2) return length;
00079
00080 length -= 2;
00081 int sum = 2;
00082 for (int delta = 1;; delta++) {
00083 for (int count = 0; count < delta; count++) {
00084 if (length == 0) return sum;
00085 sum += delta;
00086 length--;
00087 }
00088 }
00089 }
00090
00097 Foundation GetBridgeFoundation(Slope tileh, Axis axis)
00098 {
00099 if (tileh == SLOPE_FLAT ||
00100 ((tileh == SLOPE_NE || tileh == SLOPE_SW) && axis == AXIS_X) ||
00101 ((tileh == SLOPE_NW || tileh == SLOPE_SE) && axis == AXIS_Y)) return FOUNDATION_NONE;
00102
00103 return (HasSlopeHighestCorner(tileh) ? InclinedFoundation(axis) : FlatteningFoundation(tileh));
00104 }
00105
00113 bool HasBridgeFlatRamp(Slope tileh, Axis axis)
00114 {
00115 ApplyFoundationToSlope(GetBridgeFoundation(tileh, axis), &tileh);
00116
00117 return (tileh != SLOPE_FLAT);
00118 }
00119
00120 static inline const PalSpriteID *GetBridgeSpriteTable(int index, BridgePieces table)
00121 {
00122 const BridgeSpec *bridge = GetBridgeSpec(index);
00123 assert(table < BRIDGE_PIECE_INVALID);
00124 if (bridge->sprite_table == NULL || bridge->sprite_table[table] == NULL) {
00125 return _bridge_sprite_table[index][table];
00126 } else {
00127 return bridge->sprite_table[table];
00128 }
00129 }
00130
00131
00140 static CommandCost CheckBridgeSlopeNorth(Axis axis, Slope *tileh, int *z)
00141 {
00142 Foundation f = GetBridgeFoundation(*tileh, axis);
00143 *z += ApplyFoundationToSlope(f, tileh);
00144
00145 Slope valid_inclined = (axis == AXIS_X ? SLOPE_NE : SLOPE_NW);
00146 if ((*tileh != SLOPE_FLAT) && (*tileh != valid_inclined)) return CMD_ERROR;
00147
00148 if (f == FOUNDATION_NONE) return CommandCost();
00149
00150 return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
00151 }
00152
00161 static CommandCost CheckBridgeSlopeSouth(Axis axis, Slope *tileh, int *z)
00162 {
00163 Foundation f = GetBridgeFoundation(*tileh, axis);
00164 *z += ApplyFoundationToSlope(f, tileh);
00165
00166 Slope valid_inclined = (axis == AXIS_X ? SLOPE_SW : SLOPE_SE);
00167 if ((*tileh != SLOPE_FLAT) && (*tileh != valid_inclined)) return CMD_ERROR;
00168
00169 if (f == FOUNDATION_NONE) return CommandCost();
00170
00171 return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
00172 }
00173
00180 CommandCost CheckBridgeAvailability(BridgeType bridge_type, uint bridge_len, DoCommandFlag flags)
00181 {
00182 if (flags & DC_QUERY_COST) {
00183 if (bridge_len <= _settings_game.construction.max_bridge_length) return CommandCost();
00184 return_cmd_error(STR_ERROR_BRIDGE_TOO_LONG);
00185 }
00186
00187 if (bridge_type >= MAX_BRIDGES) return CMD_ERROR;
00188
00189 const BridgeSpec *b = GetBridgeSpec(bridge_type);
00190 if (b->avail_year > _cur_year) return CMD_ERROR;
00191
00192 uint max = min(b->max_length, _settings_game.construction.max_bridge_length);
00193
00194 if (b->min_length > bridge_len) return CMD_ERROR;
00195 if (bridge_len <= max) return CommandCost();
00196 return_cmd_error(STR_ERROR_BRIDGE_TOO_LONG);
00197 }
00198
00211 CommandCost CmdBuildBridge(TileIndex end_tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00212 {
00213 CompanyID company = _current_company;
00214
00215 RailType railtype = INVALID_RAILTYPE;
00216 RoadTypes roadtypes = ROADTYPES_NONE;
00217
00218
00219 BridgeType bridge_type = GB(p2, 0, 8);
00220
00221 if (!IsValidTile(p1)) return_cmd_error(STR_ERROR_BRIDGE_THROUGH_MAP_BORDER);
00222
00223 TransportType transport_type = Extract<TransportType, 15, 2>(p2);
00224
00225
00226 switch (transport_type) {
00227 case TRANSPORT_ROAD:
00228 roadtypes = Extract<RoadTypes, 8, 2>(p2);
00229 if (!HasExactlyOneBit(roadtypes) || !HasRoadTypesAvail(company, roadtypes)) return CMD_ERROR;
00230 break;
00231
00232 case TRANSPORT_RAIL:
00233 railtype = Extract<RailType, 8, 4>(p2);
00234 if (!ValParamRailtype(railtype)) return CMD_ERROR;
00235 break;
00236
00237 case TRANSPORT_WATER:
00238 break;
00239
00240 default:
00241
00242 return CMD_ERROR;
00243 }
00244 TileIndex tile_start = p1;
00245 TileIndex tile_end = end_tile;
00246
00247 if (company == OWNER_DEITY) {
00248 if (transport_type != TRANSPORT_ROAD) return CMD_ERROR;
00249 const Town *town = CalcClosestTownFromTile(tile_start);
00250
00251 company = OWNER_TOWN;
00252
00253
00254 if (town == NULL || DistanceSquare(tile_start, town->xy) > town->squared_town_zone_radius[HZB_TOWN_EDGE]) {
00255 company = OWNER_NONE;
00256 }
00257 }
00258
00259 if (tile_start == tile_end) {
00260 return_cmd_error(STR_ERROR_CAN_T_START_AND_END_ON);
00261 }
00262
00263 Axis direction;
00264 if (TileX(tile_start) == TileX(tile_end)) {
00265 direction = AXIS_Y;
00266 } else if (TileY(tile_start) == TileY(tile_end)) {
00267 direction = AXIS_X;
00268 } else {
00269 return_cmd_error(STR_ERROR_START_AND_END_MUST_BE_IN);
00270 }
00271
00272 if (tile_end < tile_start) Swap(tile_start, tile_end);
00273
00274 uint bridge_len = GetTunnelBridgeLength(tile_start, tile_end);
00275 if (transport_type != TRANSPORT_WATER) {
00276
00277 CommandCost ret = CheckBridgeAvailability(bridge_type, bridge_len, flags);
00278 if (ret.Failed()) return ret;
00279 } else {
00280 if (bridge_len > _settings_game.construction.max_bridge_length) return_cmd_error(STR_ERROR_BRIDGE_TOO_LONG);
00281 }
00282
00283 int z_start;
00284 int z_end;
00285 Slope tileh_start = GetTileSlope(tile_start, &z_start);
00286 Slope tileh_end = GetTileSlope(tile_end, &z_end);
00287 bool pbs_reservation = false;
00288
00289 CommandCost terraform_cost_north = CheckBridgeSlopeNorth(direction, &tileh_start, &z_start);
00290 CommandCost terraform_cost_south = CheckBridgeSlopeSouth(direction, &tileh_end, &z_end);
00291
00292
00293 if (transport_type == TRANSPORT_WATER && (tileh_start == SLOPE_FLAT || tileh_end == SLOPE_FLAT)) return_cmd_error(STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION);
00294 if (z_start != z_end) return_cmd_error(STR_ERROR_BRIDGEHEADS_NOT_SAME_HEIGHT);
00295
00296 CommandCost cost(EXPENSES_CONSTRUCTION);
00297 Owner owner;
00298 if (IsBridgeTile(tile_start) && IsBridgeTile(tile_end) &&
00299 GetOtherBridgeEnd(tile_start) == tile_end &&
00300 GetTunnelBridgeTransportType(tile_start) == transport_type) {
00301
00302
00303
00304 if (transport_type == TRANSPORT_RAIL && GetRailType(tile_start) != railtype) {
00305 return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00306 }
00307
00308
00309 if (!(flags & DC_QUERY_COST) && IsTileOwner(tile_start, OWNER_TOWN) &&
00310 GetBridgeSpec(bridge_type)->speed < GetBridgeSpec(GetBridgeType(tile_start))->speed) {
00311 Town *t = ClosestTownFromTile(tile_start, UINT_MAX);
00312
00313 if (t == NULL) {
00314 return CMD_ERROR;
00315 } else {
00316 SetDParam(0, t->index);
00317 return_cmd_error(STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS);
00318 }
00319 }
00320
00321
00322 if (!(flags & DC_QUERY_COST) && bridge_type == GetBridgeType(tile_start)) {
00323 return_cmd_error(STR_ERROR_ALREADY_BUILT);
00324 }
00325
00326
00327 if (!IsTileOwner(tile_start, company) && !IsTileOwner(tile_start, OWNER_TOWN)) {
00328 return_cmd_error(STR_ERROR_AREA_IS_OWNED_BY_ANOTHER);
00329 }
00330
00331 cost.AddCost((bridge_len + 1) * _price[PR_CLEAR_BRIDGE]);
00332 owner = GetTileOwner(tile_start);
00333
00334 switch (transport_type) {
00335 case TRANSPORT_RAIL:
00336
00337 pbs_reservation = HasTunnelBridgeReservation(tile_start);
00338 break;
00339
00340 case TRANSPORT_ROAD:
00341
00342 roadtypes |= GetRoadTypes(tile_start);
00343 break;
00344
00345 default: break;
00346 }
00347 } else {
00348
00349
00350 bool allow_on_slopes = (_settings_game.construction.build_on_slopes && transport_type != TRANSPORT_WATER);
00351
00352
00353 CommandCost ret = DoCommand(tile_start, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00354 if (ret.Failed()) return ret;
00355 cost = ret;
00356
00357 if (terraform_cost_north.Failed() || (terraform_cost_north.GetCost() != 0 && !allow_on_slopes)) return_cmd_error(STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION);
00358 cost.AddCost(terraform_cost_north);
00359
00360
00361 ret = DoCommand(tile_end, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00362 if (ret.Failed()) return ret;
00363 cost.AddCost(ret);
00364
00365
00366 if (terraform_cost_south.Failed() || (terraform_cost_south.GetCost() != 0 && !allow_on_slopes)) return_cmd_error(STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION);
00367 cost.AddCost(terraform_cost_south);
00368
00369 const TileIndex heads[] = {tile_start, tile_end};
00370 for (int i = 0; i < 2; i++) {
00371 if (MayHaveBridgeAbove(heads[i])) {
00372 if (IsBridgeAbove(heads[i])) {
00373 TileIndex north_head = GetNorthernBridgeEnd(heads[i]);
00374
00375 if (direction == GetBridgeAxis(heads[i])) return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00376
00377 if (z_start + 1 == GetBridgeHeight(north_head)) {
00378 return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00379 }
00380 }
00381 }
00382 }
00383
00384 TileIndexDiff delta = (direction == AXIS_X ? TileDiffXY(1, 0) : TileDiffXY(0, 1));
00385 for (TileIndex tile = tile_start + delta; tile != tile_end; tile += delta) {
00386 if (GetTileMaxZ(tile) > z_start) return_cmd_error(STR_ERROR_BRIDGE_TOO_LOW_FOR_TERRAIN);
00387
00388 if (MayHaveBridgeAbove(tile) && IsBridgeAbove(tile)) {
00389
00390 return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00391 }
00392
00393 switch (GetTileType(tile)) {
00394 case MP_WATER:
00395 if (!IsWater(tile) && !IsCoast(tile)) goto not_valid_below;
00396 break;
00397
00398 case MP_RAILWAY:
00399 if (!IsPlainRail(tile)) goto not_valid_below;
00400 break;
00401
00402 case MP_ROAD:
00403 if (IsRoadDepot(tile)) goto not_valid_below;
00404 break;
00405
00406 case MP_TUNNELBRIDGE:
00407 if (IsTunnel(tile)) break;
00408 if (direction == DiagDirToAxis(GetTunnelBridgeDirection(tile))) goto not_valid_below;
00409 if (z_start < GetBridgeHeight(tile)) goto not_valid_below;
00410 break;
00411
00412 case MP_OBJECT: {
00413 const ObjectSpec *spec = ObjectSpec::GetByTile(tile);
00414 if ((spec->flags & OBJECT_FLAG_ALLOW_UNDER_BRIDGE) == 0) goto not_valid_below;
00415 if (GetTileMaxZ(tile) + spec->height > z_start) goto not_valid_below;
00416 break;
00417 }
00418
00419 case MP_CLEAR:
00420 break;
00421
00422 default:
00423 not_valid_below:;
00424
00425 ret = DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00426 if (ret.Failed()) return ret;
00427 cost.AddCost(ret);
00428 break;
00429 }
00430
00431 if (flags & DC_EXEC) {
00432
00433
00434
00435 SetBridgeMiddle(tile, direction);
00436 }
00437 }
00438
00439 owner = company;
00440 }
00441
00442
00443 if (flags & DC_EXEC) {
00444 DiagDirection dir = AxisToDiagDir(direction);
00445
00446 Company *c = Company::GetIfValid(owner);
00447 switch (transport_type) {
00448 case TRANSPORT_RAIL:
00449
00450 if (!IsBridgeTile(tile_start) && c != NULL) c->infrastructure.rail[railtype] += (bridge_len + 2) * TUNNELBRIDGE_TRACKBIT_FACTOR;
00451 MakeRailBridgeRamp(tile_start, owner, bridge_type, dir, railtype);
00452 MakeRailBridgeRamp(tile_end, owner, bridge_type, ReverseDiagDir(dir), railtype);
00453 SetTunnelBridgeReservation(tile_start, pbs_reservation);
00454 SetTunnelBridgeReservation(tile_end, pbs_reservation);
00455 break;
00456
00457 case TRANSPORT_ROAD:
00458 if (c != NULL) {
00459
00460 RoadType new_rt;
00461 FOR_EACH_SET_ROADTYPE(new_rt, roadtypes ^ (IsBridgeTile(tile_start) ? GetRoadTypes(tile_start) : ROADTYPES_NONE)) {
00462
00463 Company::Get(owner)->infrastructure.road[new_rt] += (bridge_len + 2) * 2 * TUNNELBRIDGE_TRACKBIT_FACTOR;
00464 }
00465 }
00466 MakeRoadBridgeRamp(tile_start, owner, bridge_type, dir, roadtypes);
00467 MakeRoadBridgeRamp(tile_end, owner, bridge_type, ReverseDiagDir(dir), roadtypes);
00468 break;
00469
00470 case TRANSPORT_WATER:
00471 if (!IsBridgeTile(tile_start) && c != NULL) c->infrastructure.water += (bridge_len + 2) * TUNNELBRIDGE_TRACKBIT_FACTOR;
00472 MakeAqueductBridgeRamp(tile_start, owner, dir);
00473 MakeAqueductBridgeRamp(tile_end, owner, ReverseDiagDir(dir));
00474 break;
00475
00476 default:
00477 NOT_REACHED();
00478 }
00479
00480
00481 TileIndexDiff delta = (direction == AXIS_X ? TileDiffXY(1, 0) : TileDiffXY(0, 1));
00482 for (TileIndex tile = tile_start; tile <= tile_end; tile += delta) {
00483 MarkTileDirtyByTile(tile);
00484 }
00485 DirtyCompanyInfrastructureWindows(owner);
00486 }
00487
00488 if ((flags & DC_EXEC) && transport_type == TRANSPORT_RAIL) {
00489 Track track = AxisToTrack(direction);
00490 AddSideToSignalBuffer(tile_start, INVALID_DIAGDIR, company);
00491 YapfNotifyTrackLayoutChange(tile_start, track);
00492 }
00493
00494
00495
00496
00497
00498 Company *c = Company::GetIfValid(company);
00499 if (!(flags & DC_QUERY_COST) || (c != NULL && c->is_ai)) {
00500 bridge_len += 2;
00501
00502 switch (transport_type) {
00503 case TRANSPORT_ROAD: cost.AddCost(bridge_len * _price[PR_BUILD_ROAD] * 2 * CountBits(roadtypes)); break;
00504 case TRANSPORT_RAIL: cost.AddCost(bridge_len * RailBuildCost(railtype)); break;
00505 default: break;
00506 }
00507
00508 if (c != NULL) bridge_len = CalcBridgeLenCostFactor(bridge_len);
00509
00510 if (transport_type != TRANSPORT_WATER) {
00511 cost.AddCost((int64)bridge_len * _price[PR_BUILD_BRIDGE] * GetBridgeSpec(bridge_type)->price >> 8);
00512 } else {
00513
00514 cost.AddCost((int64)bridge_len * _price[PR_BUILD_AQUEDUCT]);
00515 }
00516
00517 }
00518
00519 return cost;
00520 }
00521
00522
00533 CommandCost CmdBuildTunnel(TileIndex start_tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00534 {
00535 CompanyID company = _current_company;
00536
00537 TransportType transport_type = Extract<TransportType, 8, 2>(p1);
00538
00539 RailType railtype = INVALID_RAILTYPE;
00540 RoadTypes rts = ROADTYPES_NONE;
00541 _build_tunnel_endtile = 0;
00542 switch (transport_type) {
00543 case TRANSPORT_RAIL:
00544 railtype = Extract<RailType, 0, 4>(p1);
00545 if (!ValParamRailtype(railtype)) return CMD_ERROR;
00546 break;
00547
00548 case TRANSPORT_ROAD:
00549 rts = Extract<RoadTypes, 0, 2>(p1);
00550 if (!HasExactlyOneBit(rts) || !HasRoadTypesAvail(company, rts)) return CMD_ERROR;
00551 break;
00552
00553 default: return CMD_ERROR;
00554 }
00555
00556 if (company == OWNER_DEITY) {
00557 if (transport_type != TRANSPORT_ROAD) return CMD_ERROR;
00558 const Town *town = CalcClosestTownFromTile(start_tile);
00559
00560 company = OWNER_TOWN;
00561
00562
00563 if (town == NULL || DistanceSquare(start_tile, town->xy) > town->squared_town_zone_radius[HZB_TOWN_EDGE]) {
00564 company = OWNER_NONE;
00565 }
00566 }
00567
00568 int start_z;
00569 int end_z;
00570 Slope start_tileh = GetTileSlope(start_tile, &start_z);
00571 DiagDirection direction = GetInclinedSlopeDirection(start_tileh);
00572 if (direction == INVALID_DIAGDIR) return_cmd_error(STR_ERROR_SITE_UNSUITABLE_FOR_TUNNEL);
00573
00574 if (HasTileWaterGround(start_tile)) return_cmd_error(STR_ERROR_CAN_T_BUILD_ON_WATER);
00575
00576 CommandCost ret = DoCommand(start_tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00577 if (ret.Failed()) return ret;
00578
00579
00580
00581
00582
00583
00584 TileIndexDiff delta = TileOffsByDiagDir(direction);
00585 DiagDirection tunnel_in_way_dir;
00586 if (DiagDirToAxis(direction) == AXIS_Y) {
00587 tunnel_in_way_dir = (TileX(start_tile) < (MapMaxX() / 2)) ? DIAGDIR_SW : DIAGDIR_NE;
00588 } else {
00589 tunnel_in_way_dir = (TileY(start_tile) < (MapMaxX() / 2)) ? DIAGDIR_SE : DIAGDIR_NW;
00590 }
00591
00592 TileIndex end_tile = start_tile;
00593
00594
00595 int tiles_coef = 3;
00596
00597 int tiles = 0;
00598
00599 int tiles_bump = 25;
00600
00601 CommandCost cost(EXPENSES_CONSTRUCTION);
00602 Slope end_tileh;
00603 for (;;) {
00604 end_tile += delta;
00605 if (!IsValidTile(end_tile)) return_cmd_error(STR_ERROR_TUNNEL_THROUGH_MAP_BORDER);
00606 end_tileh = GetTileSlope(end_tile, &end_z);
00607
00608 if (start_z == end_z) break;
00609
00610 if (!_cheats.crossing_tunnels.value && IsTunnelInWayDir(end_tile, start_z, tunnel_in_way_dir)) {
00611 return_cmd_error(STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY);
00612 }
00613
00614 tiles++;
00615 if (tiles == tiles_bump) {
00616 tiles_coef++;
00617 tiles_bump *= 2;
00618 }
00619
00620 cost.AddCost(_price[PR_BUILD_TUNNEL]);
00621 cost.AddCost(cost.GetCost() >> tiles_coef);
00622 }
00623
00624
00625 cost.AddCost(_price[PR_BUILD_TUNNEL]);
00626 cost.AddCost(ret);
00627
00628
00629 _build_tunnel_endtile = end_tile;
00630
00631 if (tiles > _settings_game.construction.max_tunnel_length) return_cmd_error(STR_ERROR_TUNNEL_TOO_LONG);
00632
00633 if (HasTileWaterGround(end_tile)) return_cmd_error(STR_ERROR_CAN_T_BUILD_ON_WATER);
00634
00635
00636 ret = DoCommand(end_tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00637 if (ret.Failed()) return_cmd_error(STR_ERROR_UNABLE_TO_EXCAVATE_LAND);
00638 cost.AddCost(ret);
00639
00640
00641 if (end_tileh != ComplementSlope(start_tileh)) {
00642
00643
00644 ClearedObjectArea *coa = FindClearedObject(end_tile);
00645 if (coa == NULL) {
00646 coa = _cleared_object_areas.Append();
00647 coa->first_tile = end_tile;
00648 coa->area = TileArea(end_tile, 1, 1);
00649 }
00650
00651
00652 TileIndex old_first_tile = coa->first_tile;
00653 coa->first_tile = INVALID_TILE;
00654 ret = DoCommand(end_tile, end_tileh & start_tileh, 0, flags, CMD_TERRAFORM_LAND);
00655 coa->first_tile = old_first_tile;
00656 if (ret.Failed()) return_cmd_error(STR_ERROR_UNABLE_TO_EXCAVATE_LAND);
00657 cost.AddCost(ret);
00658 }
00659 cost.AddCost(_price[PR_BUILD_TUNNEL]);
00660
00661
00662 switch (transport_type) {
00663 case TRANSPORT_ROAD: cost.AddCost((tiles + 2) * _price[PR_BUILD_ROAD] * 2); break;
00664 case TRANSPORT_RAIL: cost.AddCost((tiles + 2) * RailBuildCost(railtype)); break;
00665 default: break;
00666 }
00667
00668 if (flags & DC_EXEC) {
00669 Company *c = Company::GetIfValid(company);
00670 uint num_pieces = (tiles + 2) * TUNNELBRIDGE_TRACKBIT_FACTOR;
00671 if (transport_type == TRANSPORT_RAIL) {
00672 if (!IsTunnelTile(start_tile) && c != NULL) c->infrastructure.rail[railtype] += num_pieces;
00673 MakeRailTunnel(start_tile, company, direction, railtype);
00674 MakeRailTunnel(end_tile, company, ReverseDiagDir(direction), railtype);
00675 AddSideToSignalBuffer(start_tile, INVALID_DIAGDIR, company);
00676 YapfNotifyTrackLayoutChange(start_tile, DiagDirToDiagTrack(direction));
00677 } else {
00678 if (c != NULL) {
00679 RoadType rt;
00680 FOR_EACH_SET_ROADTYPE(rt, rts ^ (IsTunnelTile(start_tile) ? GetRoadTypes(start_tile) : ROADTYPES_NONE)) {
00681 c->infrastructure.road[rt] += num_pieces * 2;
00682 }
00683 }
00684 MakeRoadTunnel(start_tile, company, direction, rts);
00685 MakeRoadTunnel(end_tile, company, ReverseDiagDir(direction), rts);
00686 }
00687 DirtyCompanyInfrastructureWindows(company);
00688 }
00689
00690 return cost;
00691 }
00692
00693
00699 static inline CommandCost CheckAllowRemoveTunnelBridge(TileIndex tile)
00700 {
00701
00702 if (_current_company == OWNER_WATER || _game_mode == GM_EDITOR) return CommandCost();
00703
00704 switch (GetTunnelBridgeTransportType(tile)) {
00705 case TRANSPORT_ROAD: {
00706 RoadTypes rts = GetRoadTypes(tile);
00707 Owner road_owner = _current_company;
00708 Owner tram_owner = _current_company;
00709
00710 if (HasBit(rts, ROADTYPE_ROAD)) road_owner = GetRoadOwner(tile, ROADTYPE_ROAD);
00711 if (HasBit(rts, ROADTYPE_TRAM)) tram_owner = GetRoadOwner(tile, ROADTYPE_TRAM);
00712
00713
00714 if (road_owner == OWNER_TOWN && !(_settings_game.construction.extra_dynamite || _cheats.magic_bulldozer.value)) {
00715 return CheckTileOwnership(tile);
00716 }
00717 if (road_owner == OWNER_NONE || road_owner == OWNER_TOWN) road_owner = _current_company;
00718 if (tram_owner == OWNER_NONE) tram_owner = _current_company;
00719
00720 CommandCost ret = CheckOwnership(road_owner, tile);
00721 if (ret.Succeeded()) ret = CheckOwnership(tram_owner, tile);
00722 return ret;
00723 }
00724
00725 case TRANSPORT_RAIL:
00726 return CheckOwnership(GetTileOwner(tile));
00727
00728 case TRANSPORT_WATER: {
00729
00730 Owner aqueduct_owner = GetTileOwner(tile);
00731 if (aqueduct_owner == OWNER_NONE) aqueduct_owner = _current_company;
00732 return CheckOwnership(aqueduct_owner);
00733 }
00734
00735 default: NOT_REACHED();
00736 }
00737 }
00738
00745 static CommandCost DoClearTunnel(TileIndex tile, DoCommandFlag flags)
00746 {
00747 CommandCost ret = CheckAllowRemoveTunnelBridge(tile);
00748 if (ret.Failed()) return ret;
00749
00750 TileIndex endtile = GetOtherTunnelEnd(tile);
00751
00752 ret = TunnelBridgeIsFree(tile, endtile);
00753 if (ret.Failed()) return ret;
00754
00755 _build_tunnel_endtile = endtile;
00756
00757 Town *t = NULL;
00758 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00759 t = ClosestTownFromTile(tile, UINT_MAX);
00760
00761
00762
00763 CommandCost ret = CheckforTownRating(flags, t, TUNNELBRIDGE_REMOVE);
00764 if (ret.Failed()) return ret;
00765 }
00766
00767
00768
00769 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00770 ChangeTownRating(t, RATING_TUNNEL_BRIDGE_DOWN_STEP, RATING_TUNNEL_BRIDGE_MINIMUM, flags);
00771 }
00772
00773 uint len = GetTunnelBridgeLength(tile, endtile) + 2;
00774
00775 if (flags & DC_EXEC) {
00776 if (GetTunnelBridgeTransportType(tile) == TRANSPORT_RAIL) {
00777
00778 DiagDirection dir = GetTunnelBridgeDirection(tile);
00779 Track track = DiagDirToDiagTrack(dir);
00780 Owner owner = GetTileOwner(tile);
00781
00782 Train *v = NULL;
00783 if (HasTunnelBridgeReservation(tile)) {
00784 v = GetTrainForReservation(tile, track);
00785 if (v != NULL) FreeTrainTrackReservation(v);
00786 }
00787
00788 if (Company::IsValidID(owner)) {
00789 Company::Get(owner)->infrastructure.rail[GetRailType(tile)] -= len * TUNNELBRIDGE_TRACKBIT_FACTOR;
00790 DirtyCompanyInfrastructureWindows(owner);
00791 }
00792
00793 DoClearSquare(tile);
00794 DoClearSquare(endtile);
00795
00796
00797 AddSideToSignalBuffer(tile, ReverseDiagDir(dir), owner);
00798 AddSideToSignalBuffer(endtile, dir, owner);
00799
00800 YapfNotifyTrackLayoutChange(tile, track);
00801 YapfNotifyTrackLayoutChange(endtile, track);
00802
00803 if (v != NULL) TryPathReserve(v);
00804 } else {
00805 RoadType rt;
00806 FOR_EACH_SET_ROADTYPE(rt, GetRoadTypes(tile)) {
00807
00808 Company *c = Company::GetIfValid(GetRoadOwner(tile, rt));
00809 if (c != NULL) {
00810 c->infrastructure.road[rt] -= len * 2 * TUNNELBRIDGE_TRACKBIT_FACTOR;
00811 DirtyCompanyInfrastructureWindows(c->index);
00812 }
00813 }
00814
00815 DoClearSquare(tile);
00816 DoClearSquare(endtile);
00817 }
00818 }
00819 return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_CLEAR_TUNNEL] * len);
00820 }
00821
00822
00829 static CommandCost DoClearBridge(TileIndex tile, DoCommandFlag flags)
00830 {
00831 CommandCost ret = CheckAllowRemoveTunnelBridge(tile);
00832 if (ret.Failed()) return ret;
00833
00834 TileIndex endtile = GetOtherBridgeEnd(tile);
00835
00836 ret = TunnelBridgeIsFree(tile, endtile);
00837 if (ret.Failed()) return ret;
00838
00839 DiagDirection direction = GetTunnelBridgeDirection(tile);
00840 TileIndexDiff delta = TileOffsByDiagDir(direction);
00841
00842 Town *t = NULL;
00843 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00844 t = ClosestTownFromTile(tile, UINT_MAX);
00845
00846
00847
00848 CommandCost ret = CheckforTownRating(flags, t, TUNNELBRIDGE_REMOVE);
00849 if (ret.Failed()) return ret;
00850 }
00851
00852
00853
00854 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00855 ChangeTownRating(t, RATING_TUNNEL_BRIDGE_DOWN_STEP, RATING_TUNNEL_BRIDGE_MINIMUM, flags);
00856 }
00857
00858 Money base_cost = (GetTunnelBridgeTransportType(tile) != TRANSPORT_WATER) ? _price[PR_CLEAR_BRIDGE] : _price[PR_CLEAR_AQUEDUCT];
00859 uint len = GetTunnelBridgeLength(tile, endtile) + 2;
00860
00861 if (flags & DC_EXEC) {
00862
00863 bool rail = GetTunnelBridgeTransportType(tile) == TRANSPORT_RAIL;
00864 Owner owner = GetTileOwner(tile);
00865 int height = GetBridgeHeight(tile);
00866 Train *v = NULL;
00867
00868 if (rail && HasTunnelBridgeReservation(tile)) {
00869 v = GetTrainForReservation(tile, DiagDirToDiagTrack(direction));
00870 if (v != NULL) FreeTrainTrackReservation(v);
00871 }
00872
00873
00874 if (rail) {
00875 if (Company::IsValidID(owner)) Company::Get(owner)->infrastructure.rail[GetRailType(tile)] -= len * TUNNELBRIDGE_TRACKBIT_FACTOR;
00876 } else if (GetTunnelBridgeTransportType(tile) == TRANSPORT_ROAD) {
00877 RoadType rt;
00878 FOR_EACH_SET_ROADTYPE(rt, GetRoadTypes(tile)) {
00879 Company *c = Company::GetIfValid(GetRoadOwner(tile, rt));
00880 if (c != NULL) {
00881
00882 c->infrastructure.road[rt] -= len * 2 * TUNNELBRIDGE_TRACKBIT_FACTOR;
00883 DirtyCompanyInfrastructureWindows(c->index);
00884 }
00885 }
00886 } else {
00887 if (Company::IsValidID(owner)) Company::Get(owner)->infrastructure.water -= len * TUNNELBRIDGE_TRACKBIT_FACTOR;
00888 }
00889 DirtyCompanyInfrastructureWindows(owner);
00890
00891 DoClearSquare(tile);
00892 DoClearSquare(endtile);
00893 for (TileIndex c = tile + delta; c != endtile; c += delta) {
00894
00895 if (IsNormalRoadTile(c) && GetRoadside(c) == ROADSIDE_TREES) {
00896 int minz = GetTileMaxZ(c) + 3;
00897 if (height < minz) SetRoadside(c, ROADSIDE_PAVED);
00898 }
00899 ClearBridgeMiddle(c);
00900 MarkTileDirtyByTile(c);
00901 }
00902
00903 if (rail) {
00904
00905 AddSideToSignalBuffer(tile, ReverseDiagDir(direction), owner);
00906 AddSideToSignalBuffer(endtile, direction, owner);
00907
00908 Track track = DiagDirToDiagTrack(direction);
00909 YapfNotifyTrackLayoutChange(tile, track);
00910 YapfNotifyTrackLayoutChange(endtile, track);
00911
00912 if (v != NULL) TryPathReserve(v, true);
00913 }
00914 }
00915
00916 return CommandCost(EXPENSES_CONSTRUCTION, len * base_cost);
00917 }
00918
00925 static CommandCost ClearTile_TunnelBridge(TileIndex tile, DoCommandFlag flags)
00926 {
00927 if (IsTunnel(tile)) {
00928 if (flags & DC_AUTO) return_cmd_error(STR_ERROR_MUST_DEMOLISH_TUNNEL_FIRST);
00929 return DoClearTunnel(tile, flags);
00930 } else {
00931 if (flags & DC_AUTO) return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00932 return DoClearBridge(tile, flags);
00933 }
00934 }
00935
00946 static inline void DrawPillar(const PalSpriteID *psid, int x, int y, int z, int w, int h, const SubSprite *subsprite)
00947 {
00948 static const int PILLAR_Z_OFFSET = TILE_HEIGHT - BRIDGE_Z_START;
00949 AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, w, h, BB_HEIGHT_UNDER_BRIDGE - PILLAR_Z_OFFSET, z, IsTransparencySet(TO_BRIDGES), 0, 0, -PILLAR_Z_OFFSET, subsprite);
00950 }
00951
00963 static int DrawPillarColumn(int z_bottom, int z_top, const PalSpriteID *psid, int x, int y, int w, int h)
00964 {
00965 int cur_z;
00966 for (cur_z = z_top; cur_z >= z_bottom; cur_z -= TILE_HEIGHT) {
00967 DrawPillar(psid, x, y, cur_z, w, h, NULL);
00968 }
00969 return cur_z;
00970 }
00971
00983 static void DrawBridgePillars(const PalSpriteID *psid, const TileInfo *ti, Axis axis, bool drawfarpillar, int x, int y, int z_bridge)
00984 {
00985 static const int bounding_box_size[2] = {16, 2};
00986 static const int back_pillar_offset[2] = { 0, 9};
00987
00988 static const int INF = 1000;
00989 static const SubSprite half_pillar_sub_sprite[2][2] = {
00990 { { -14, -INF, INF, INF }, { -INF, -INF, -15, INF } },
00991 { { -INF, -INF, 15, INF }, { 16, -INF, INF, INF } },
00992 };
00993
00994 if (psid->sprite == 0) return;
00995
00996
00997 DiagDirection south_dir = AxisToDiagDir(axis);
00998 int z_front_north = ti->z;
00999 int z_back_north = ti->z;
01000 int z_front_south = ti->z;
01001 int z_back_south = ti->z;
01002 GetSlopePixelZOnEdge(ti->tileh, south_dir, &z_front_south, &z_back_south);
01003 GetSlopePixelZOnEdge(ti->tileh, ReverseDiagDir(south_dir), &z_front_north, &z_back_north);
01004
01005
01006 int z_front = max(z_front_north, z_front_south);
01007 int z_back = max(z_back_north, z_back_south);
01008
01009
01010 int w = bounding_box_size[axis];
01011 int h = bounding_box_size[OtherAxis(axis)];
01012
01013 int x_back = x - back_pillar_offset[axis];
01014 int y_back = y - back_pillar_offset[OtherAxis(axis)];
01015
01016
01017 int bottom_z = DrawPillarColumn(z_front, z_bridge, psid, x, y, w, h);
01018 if (z_front_north < z_front) DrawPillar(psid, x, y, bottom_z, w, h, &half_pillar_sub_sprite[axis][0]);
01019 if (z_front_south < z_front) DrawPillar(psid, x, y, bottom_z, w, h, &half_pillar_sub_sprite[axis][1]);
01020
01021
01022 int z_bridge_back = z_bridge - 2 * (int)TILE_HEIGHT;
01023 if (drawfarpillar && (z_back_north <= z_bridge_back || z_back_south <= z_bridge_back)) {
01024 bottom_z = DrawPillarColumn(z_back, z_bridge_back, psid, x_back, y_back, w, h);
01025 if (z_back_north < z_back) DrawPillar(psid, x_back, y_back, bottom_z, w, h, &half_pillar_sub_sprite[axis][0]);
01026 if (z_back_south < z_back) DrawPillar(psid, x_back, y_back, bottom_z, w, h, &half_pillar_sub_sprite[axis][1]);
01027 }
01028 }
01029
01039 static void DrawBridgeTramBits(int x, int y, int z, int offset, bool overlay, bool head)
01040 {
01041 static const SpriteID tram_offsets[2][6] = { { 107, 108, 109, 110, 111, 112 }, { 4, 5, 15, 16, 17, 18 } };
01042 static const SpriteID back_offsets[6] = { 95, 96, 99, 102, 100, 101 };
01043 static const SpriteID front_offsets[6] = { 97, 98, 103, 106, 104, 105 };
01044
01045 static const uint size_x[6] = { 1, 16, 16, 1, 16, 1 };
01046 static const uint size_y[6] = { 16, 1, 1, 16, 1, 16 };
01047 static const uint front_bb_offset_x[6] = { 15, 0, 0, 15, 0, 15 };
01048 static const uint front_bb_offset_y[6] = { 0, 15, 15, 0, 15, 0 };
01049
01050
01051
01052 if (head || !IsInvisibilitySet(TO_BRIDGES)) {
01053 AddSortableSpriteToDraw(SPR_TRAMWAY_BASE + tram_offsets[overlay][offset], PAL_NONE,
01054 x, y, size_x[offset], size_y[offset], 0x28, z,
01055 !head && IsTransparencySet(TO_BRIDGES));
01056 }
01057
01058
01059 if (!IsInvisibilitySet(TO_CATENARY)) {
01060 AddSortableSpriteToDraw(SPR_TRAMWAY_BASE + back_offsets[offset], PAL_NONE,
01061 x, y, size_x[offset], size_y[offset], 0x28, z,
01062 IsTransparencySet(TO_CATENARY));
01063 }
01064
01065
01066 EndSpriteCombine();
01067 StartSpriteCombine();
01068
01069
01070 if (!IsInvisibilitySet(TO_CATENARY)) {
01071 AddSortableSpriteToDraw(SPR_TRAMWAY_BASE + front_offsets[offset], PAL_NONE,
01072 x, y, size_x[offset] + front_bb_offset_x[offset], size_y[offset] + front_bb_offset_y[offset], 0x28, z,
01073 IsTransparencySet(TO_CATENARY), front_bb_offset_x[offset], front_bb_offset_y[offset]);
01074 }
01075 }
01076
01090 static void DrawTile_TunnelBridge(TileInfo *ti)
01091 {
01092 TransportType transport_type = GetTunnelBridgeTransportType(ti->tile);
01093 DiagDirection tunnelbridge_direction = GetTunnelBridgeDirection(ti->tile);
01094
01095 if (IsTunnel(ti->tile)) {
01096
01097
01098
01099
01100
01101
01102
01103
01104
01105 static const int _tunnel_BB[4][12] = {
01106
01107
01108 { 1, 0, -15, -14, 0, 15, 16, 1, 0, 1, 16, 15 },
01109 { 0, 1, -14, -15, 15, 0, 1, 16, 1, 0, 15, 16 },
01110 { 1, 0, -15, -14, 0, 15, 16, 1, 0, 1, 16, 15 },
01111 { 0, 1, -14, -15, 15, 0, 1, 16, 1, 0, 15, 16 },
01112 };
01113 const int *BB_data = _tunnel_BB[tunnelbridge_direction];
01114
01115 bool catenary = false;
01116
01117 SpriteID image;
01118 if (transport_type == TRANSPORT_RAIL) {
01119 image = GetRailTypeInfo(GetRailType(ti->tile))->base_sprites.tunnel;
01120 } else {
01121 image = SPR_TUNNEL_ENTRY_REAR_ROAD;
01122 }
01123
01124 if (HasTunnelBridgeSnowOrDesert(ti->tile)) image += 32;
01125
01126 image += tunnelbridge_direction * 2;
01127 DrawGroundSprite(image, PAL_NONE);
01128
01129 if (transport_type == TRANSPORT_ROAD) {
01130 RoadTypes rts = GetRoadTypes(ti->tile);
01131
01132 if (HasBit(rts, ROADTYPE_TRAM)) {
01133 static const SpriteID tunnel_sprites[2][4] = { { 28, 78, 79, 27 }, { 5, 76, 77, 4 } };
01134
01135 DrawGroundSprite(SPR_TRAMWAY_BASE + tunnel_sprites[rts - ROADTYPES_TRAM][tunnelbridge_direction], PAL_NONE);
01136
01137
01138 if (!IsInvisibilitySet(TO_CATENARY)) {
01139 catenary = true;
01140 StartSpriteCombine();
01141 AddSortableSpriteToDraw(SPR_TRAMWAY_TUNNEL_WIRES + tunnelbridge_direction, PAL_NONE, ti->x, ti->y, BB_data[10], BB_data[11], TILE_HEIGHT, ti->z, IsTransparencySet(TO_CATENARY), BB_data[8], BB_data[9], BB_Z_SEPARATOR);
01142 }
01143 }
01144 } else {
01145 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(ti->tile));
01146 if (rti->UsesOverlay()) {
01147 SpriteID surface = GetCustomRailSprite(rti, ti->tile, RTSG_TUNNEL);
01148 if (surface != 0) DrawGroundSprite(surface + tunnelbridge_direction, PAL_NONE);
01149 }
01150
01151
01152 if (_game_mode != GM_MENU && _settings_client.gui.show_track_reservation && HasTunnelBridgeReservation(ti->tile)) {
01153 DrawGroundSprite(DiagDirToAxis(tunnelbridge_direction) == AXIS_X ? rti->base_sprites.single_x : rti->base_sprites.single_y, PALETTE_CRASH);
01154 }
01155
01156 if (HasCatenaryDrawn(GetRailType(ti->tile))) {
01157
01158 DrawCatenary(ti);
01159
01160 catenary = true;
01161 StartSpriteCombine();
01162
01163 DrawCatenaryOnTunnel(ti);
01164 }
01165 }
01166
01167 AddSortableSpriteToDraw(image + 1, PAL_NONE, ti->x + TILE_SIZE - 1, ti->y + TILE_SIZE - 1, BB_data[0], BB_data[1], TILE_HEIGHT, ti->z, false, BB_data[2], BB_data[3], BB_Z_SEPARATOR);
01168
01169 if (catenary) EndSpriteCombine();
01170
01171
01172 AddSortableSpriteToDraw(SPR_EMPTY_BOUNDING_BOX, PAL_NONE, ti->x, ti->y, BB_data[6], BB_data[7], TILE_HEIGHT, ti->z);
01173 AddSortableSpriteToDraw(SPR_EMPTY_BOUNDING_BOX, PAL_NONE, ti->x + BB_data[4], ti->y + BB_data[5], BB_data[6], BB_data[7], TILE_HEIGHT, ti->z);
01174
01175 DrawBridgeMiddle(ti);
01176 } else {
01177 const PalSpriteID *psid;
01178 int base_offset;
01179 bool ice = HasTunnelBridgeSnowOrDesert(ti->tile);
01180
01181 if (transport_type == TRANSPORT_RAIL) {
01182 base_offset = GetRailTypeInfo(GetRailType(ti->tile))->bridge_offset;
01183 assert(base_offset != 8);
01184 } else {
01185 base_offset = 8;
01186 }
01187
01188
01189 assert( (base_offset & 0x07) == 0x00);
01190
01191 DrawFoundation(ti, GetBridgeFoundation(ti->tileh, DiagDirToAxis(tunnelbridge_direction)));
01192
01193
01194 base_offset += (6 - tunnelbridge_direction) % 4;
01195
01196 if (ti->tileh == SLOPE_FLAT) base_offset += 4;
01197
01198
01199 if (transport_type != TRANSPORT_WATER) {
01200 psid = &GetBridgeSpriteTable(GetBridgeType(ti->tile), BRIDGE_PIECE_HEAD)[base_offset];
01201 } else {
01202 psid = _aqueduct_sprites + base_offset;
01203 }
01204
01205 if (!ice) {
01206 TileIndex next = ti->tile + TileOffsByDiagDir(tunnelbridge_direction);
01207 if (ti->tileh != SLOPE_FLAT && ti->z == 0 && HasTileWaterClass(next) && GetWaterClass(next) == WATER_CLASS_SEA) {
01208 DrawShoreTile(ti->tileh);
01209 } else {
01210 DrawClearLandTile(ti, 3);
01211 }
01212 } else {
01213 DrawGroundSprite(SPR_FLAT_SNOW_DESERT_TILE + SlopeToSpriteOffset(ti->tileh), PAL_NONE);
01214 }
01215
01216
01217
01218
01219 if (transport_type == TRANSPORT_ROAD || transport_type == TRANSPORT_RAIL) StartSpriteCombine();
01220
01221
01222
01223
01224
01225 AddSortableSpriteToDraw(psid->sprite, psid->pal, ti->x, ti->y, 16, 16, ti->tileh == SLOPE_FLAT ? 0 : 8, ti->z);
01226
01227 if (transport_type == TRANSPORT_ROAD) {
01228 RoadTypes rts = GetRoadTypes(ti->tile);
01229
01230 if (HasBit(rts, ROADTYPE_TRAM)) {
01231 uint offset = tunnelbridge_direction;
01232 int z = ti->z;
01233 if (ti->tileh != SLOPE_FLAT) {
01234 offset = (offset + 1) & 1;
01235 z += TILE_HEIGHT;
01236 } else {
01237 offset += 2;
01238 }
01239
01240 DrawBridgeTramBits(ti->x, ti->y, z, offset, HasBit(rts, ROADTYPE_ROAD), true);
01241 }
01242 EndSpriteCombine();
01243 } else if (transport_type == TRANSPORT_RAIL) {
01244 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(ti->tile));
01245 if (rti->UsesOverlay()) {
01246 SpriteID surface = GetCustomRailSprite(rti, ti->tile, RTSG_BRIDGE);
01247 if (surface != 0) {
01248 if (HasBridgeFlatRamp(ti->tileh, DiagDirToAxis(tunnelbridge_direction))) {
01249 AddSortableSpriteToDraw(surface + ((DiagDirToAxis(tunnelbridge_direction) == AXIS_X) ? RTBO_X : RTBO_Y), PAL_NONE, ti->x, ti->y, 16, 16, 0, ti->z + 8);
01250 } else {
01251 AddSortableSpriteToDraw(surface + RTBO_SLOPE + tunnelbridge_direction, PAL_NONE, ti->x, ti->y, 16, 16, 8, ti->z);
01252 }
01253 }
01254
01255
01256
01257 }
01258
01259
01260 if (_game_mode != GM_MENU &&_settings_client.gui.show_track_reservation && HasTunnelBridgeReservation(ti->tile)) {
01261 if (HasBridgeFlatRamp(ti->tileh, DiagDirToAxis(tunnelbridge_direction))) {
01262 AddSortableSpriteToDraw(DiagDirToAxis(tunnelbridge_direction) == AXIS_X ? rti->base_sprites.single_x : rti->base_sprites.single_y, PALETTE_CRASH, ti->x, ti->y, 16, 16, 0, ti->z + 8);
01263 } else {
01264 AddSortableSpriteToDraw(rti->base_sprites.single_sloped + tunnelbridge_direction, PALETTE_CRASH, ti->x, ti->y, 16, 16, 8, ti->z);
01265 }
01266 }
01267
01268 EndSpriteCombine();
01269 if (HasCatenaryDrawn(GetRailType(ti->tile))) {
01270 DrawCatenary(ti);
01271 }
01272 }
01273
01274 DrawBridgeMiddle(ti);
01275 }
01276 }
01277
01278
01297 static BridgePieces CalcBridgePiece(uint north, uint south)
01298 {
01299 if (north == 1) {
01300 return BRIDGE_PIECE_NORTH;
01301 } else if (south == 1) {
01302 return BRIDGE_PIECE_SOUTH;
01303 } else if (north < south) {
01304 return north & 1 ? BRIDGE_PIECE_INNER_SOUTH : BRIDGE_PIECE_INNER_NORTH;
01305 } else if (north > south) {
01306 return south & 1 ? BRIDGE_PIECE_INNER_NORTH : BRIDGE_PIECE_INNER_SOUTH;
01307 } else {
01308 return north & 1 ? BRIDGE_PIECE_MIDDLE_EVEN : BRIDGE_PIECE_MIDDLE_ODD;
01309 }
01310 }
01311
01316 void DrawBridgeMiddle(const TileInfo *ti)
01317 {
01318
01319
01320
01321
01322
01323
01324
01325
01326
01327
01328
01329
01330
01331
01332
01333
01334 if (!IsBridgeAbove(ti->tile)) return;
01335
01336 TileIndex rampnorth = GetNorthernBridgeEnd(ti->tile);
01337 TileIndex rampsouth = GetSouthernBridgeEnd(ti->tile);
01338 TransportType transport_type = GetTunnelBridgeTransportType(rampsouth);
01339
01340 Axis axis = GetBridgeAxis(ti->tile);
01341 BridgePieces piece = CalcBridgePiece(
01342 GetTunnelBridgeLength(ti->tile, rampnorth) + 1,
01343 GetTunnelBridgeLength(ti->tile, rampsouth) + 1
01344 );
01345
01346 const PalSpriteID *psid;
01347 bool drawfarpillar;
01348 if (transport_type != TRANSPORT_WATER) {
01349 BridgeType type = GetBridgeType(rampsouth);
01350 drawfarpillar = !HasBit(GetBridgeSpec(type)->flags, 0);
01351
01352 uint base_offset;
01353 if (transport_type == TRANSPORT_RAIL) {
01354 base_offset = GetRailTypeInfo(GetRailType(rampsouth))->bridge_offset;
01355 } else {
01356 base_offset = 8;
01357 }
01358
01359 psid = base_offset + GetBridgeSpriteTable(type, piece);
01360 } else {
01361 drawfarpillar = true;
01362 psid = _aqueduct_sprites;
01363 }
01364
01365 if (axis != AXIS_X) psid += 4;
01366
01367 int x = ti->x;
01368 int y = ti->y;
01369 uint bridge_z = GetBridgePixelHeight(rampsouth);
01370 int z = bridge_z - BRIDGE_Z_START;
01371
01372
01373 AddSortableSpriteToDraw(SPR_EMPTY_BOUNDING_BOX, PAL_NONE, x, y, 16, 16, 1, bridge_z - TILE_HEIGHT + BB_Z_SEPARATOR);
01374
01375
01376 if (transport_type == TRANSPORT_ROAD || transport_type == TRANSPORT_RAIL) StartSpriteCombine();
01377
01378
01379 if (!IsInvisibilitySet(TO_BRIDGES)) {
01380 if (axis == AXIS_X) {
01381 AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 16, 1, 0x28, z, IsTransparencySet(TO_BRIDGES), 0, 0, BRIDGE_Z_START);
01382 } else {
01383 AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 1, 16, 0x28, z, IsTransparencySet(TO_BRIDGES), 0, 0, BRIDGE_Z_START);
01384 }
01385 }
01386
01387 psid++;
01388
01389 if (transport_type == TRANSPORT_ROAD) {
01390 RoadTypes rts = GetRoadTypes(rampsouth);
01391
01392 if (HasBit(rts, ROADTYPE_TRAM)) {
01393
01394 DrawBridgeTramBits(x, y, bridge_z, axis ^ 1, HasBit(rts, ROADTYPE_ROAD), false);
01395 } else {
01396 EndSpriteCombine();
01397 StartSpriteCombine();
01398 }
01399 } else if (transport_type == TRANSPORT_RAIL) {
01400 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(rampsouth));
01401 if (rti->UsesOverlay() && !IsInvisibilitySet(TO_BRIDGES)) {
01402 SpriteID surface = GetCustomRailSprite(rti, rampsouth, RTSG_BRIDGE, TCX_ON_BRIDGE);
01403 if (surface != 0) {
01404 AddSortableSpriteToDraw(surface + axis, PAL_NONE, x, y, 16, 16, 0, bridge_z, IsTransparencySet(TO_BRIDGES));
01405 }
01406 }
01407 EndSpriteCombine();
01408
01409 if (HasCatenaryDrawn(GetRailType(rampsouth))) {
01410 DrawCatenaryOnBridge(ti);
01411 }
01412 }
01413
01414
01415 if (!IsInvisibilitySet(TO_BRIDGES)) {
01416 if (axis == AXIS_X) {
01417 y += 12;
01418 if (psid->sprite & SPRITE_MASK) AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 16, 4, 0x28, z, IsTransparencySet(TO_BRIDGES), 0, 3, BRIDGE_Z_START);
01419 } else {
01420 x += 12;
01421 if (psid->sprite & SPRITE_MASK) AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 4, 16, 0x28, z, IsTransparencySet(TO_BRIDGES), 3, 0, BRIDGE_Z_START);
01422 }
01423 }
01424
01425
01426 if (transport_type == TRANSPORT_ROAD) EndSpriteCombine();
01427
01428
01429 if (IsInvisibilitySet(TO_BRIDGES)) return;
01430
01431 psid++;
01432 if (ti->z + 5 == z) {
01433
01434 if (psid->sprite != 0) {
01435 SpriteID image = psid->sprite;
01436 SpriteID pal = psid->pal;
01437 if (IsTransparencySet(TO_BRIDGES)) {
01438 SetBit(image, PALETTE_MODIFIER_TRANSPARENT);
01439 pal = PALETTE_TO_TRANSPARENT;
01440 }
01441
01442 DrawGroundSpriteAt(image, pal, x - ti->x, y - ti->y, z - ti->z);
01443 }
01444 } else {
01445
01446 DrawBridgePillars(psid, ti, axis, drawfarpillar, x, y, z);
01447 }
01448 }
01449
01450
01451 static int GetSlopePixelZ_TunnelBridge(TileIndex tile, uint x, uint y)
01452 {
01453 int z;
01454 Slope tileh = GetTilePixelSlope(tile, &z);
01455
01456 x &= 0xF;
01457 y &= 0xF;
01458
01459 if (IsTunnel(tile)) {
01460 uint pos = (DiagDirToAxis(GetTunnelBridgeDirection(tile)) == AXIS_X ? y : x);
01461
01462
01463 if (5 <= pos && pos <= 10) return z;
01464 } else {
01465 DiagDirection dir = GetTunnelBridgeDirection(tile);
01466 uint pos = (DiagDirToAxis(dir) == AXIS_X ? y : x);
01467
01468 z += ApplyPixelFoundationToSlope(GetBridgeFoundation(tileh, DiagDirToAxis(dir)), &tileh);
01469
01470
01471 if (5 <= pos && pos <= 10) {
01472 int delta;
01473
01474 if (tileh != SLOPE_FLAT) return z + TILE_HEIGHT;
01475
01476 switch (dir) {
01477 default: NOT_REACHED();
01478 case DIAGDIR_NE: delta = (TILE_SIZE - 1 - x) / 2; break;
01479 case DIAGDIR_SE: delta = y / 2; break;
01480 case DIAGDIR_SW: delta = x / 2; break;
01481 case DIAGDIR_NW: delta = (TILE_SIZE - 1 - y) / 2; break;
01482 }
01483 return z + 1 + delta;
01484 }
01485 }
01486
01487 return z + GetPartialPixelZ(x, y, tileh);
01488 }
01489
01490 static Foundation GetFoundation_TunnelBridge(TileIndex tile, Slope tileh)
01491 {
01492 return IsTunnel(tile) ? FOUNDATION_NONE : GetBridgeFoundation(tileh, DiagDirToAxis(GetTunnelBridgeDirection(tile)));
01493 }
01494
01495 static void GetTileDesc_TunnelBridge(TileIndex tile, TileDesc *td)
01496 {
01497 TransportType tt = GetTunnelBridgeTransportType(tile);
01498
01499 if (IsTunnel(tile)) {
01500 td->str = (tt == TRANSPORT_RAIL) ? STR_LAI_TUNNEL_DESCRIPTION_RAILROAD : STR_LAI_TUNNEL_DESCRIPTION_ROAD;
01501 } else {
01502 td->str = (tt == TRANSPORT_WATER) ? STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT : GetBridgeSpec(GetBridgeType(tile))->transport_name[tt];
01503 }
01504 td->owner[0] = GetTileOwner(tile);
01505
01506 Owner road_owner = INVALID_OWNER;
01507 Owner tram_owner = INVALID_OWNER;
01508 RoadTypes rts = GetRoadTypes(tile);
01509 if (HasBit(rts, ROADTYPE_ROAD)) road_owner = GetRoadOwner(tile, ROADTYPE_ROAD);
01510 if (HasBit(rts, ROADTYPE_TRAM)) tram_owner = GetRoadOwner(tile, ROADTYPE_TRAM);
01511
01512
01513 if ((tram_owner != INVALID_OWNER && tram_owner != td->owner[0]) ||
01514 (road_owner != INVALID_OWNER && road_owner != td->owner[0])) {
01515 uint i = 1;
01516 if (road_owner != INVALID_OWNER) {
01517 td->owner_type[i] = STR_LAND_AREA_INFORMATION_ROAD_OWNER;
01518 td->owner[i] = road_owner;
01519 i++;
01520 }
01521 if (tram_owner != INVALID_OWNER) {
01522 td->owner_type[i] = STR_LAND_AREA_INFORMATION_TRAM_OWNER;
01523 td->owner[i] = tram_owner;
01524 }
01525 }
01526
01527 if (tt == TRANSPORT_RAIL) {
01528 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(tile));
01529 td->rail_speed = rti->max_speed;
01530
01531 if (!IsTunnel(tile)) {
01532 uint16 spd = GetBridgeSpec(GetBridgeType(tile))->speed;
01533 if (td->rail_speed == 0 || spd < td->rail_speed) {
01534 td->rail_speed = spd;
01535 }
01536 }
01537 }
01538 }
01539
01540
01541 static void TileLoop_TunnelBridge(TileIndex tile)
01542 {
01543 bool snow_or_desert = HasTunnelBridgeSnowOrDesert(tile);
01544 switch (_settings_game.game_creation.landscape) {
01545 case LT_ARCTIC: {
01546
01547
01548
01549 int z = IsBridge(tile) ? GetTileMaxZ(tile) : GetTileZ(tile);
01550 if (snow_or_desert != (z > GetSnowLine())) {
01551 SetTunnelBridgeSnowOrDesert(tile, !snow_or_desert);
01552 MarkTileDirtyByTile(tile);
01553 }
01554 break;
01555 }
01556
01557 case LT_TROPIC:
01558 if (GetTropicZone(tile) == TROPICZONE_DESERT && !snow_or_desert) {
01559 SetTunnelBridgeSnowOrDesert(tile, true);
01560 MarkTileDirtyByTile(tile);
01561 }
01562 break;
01563
01564 default:
01565 break;
01566 }
01567 }
01568
01569 static TrackStatus GetTileTrackStatus_TunnelBridge(TileIndex tile, TransportType mode, uint sub_mode, DiagDirection side)
01570 {
01571 TransportType transport_type = GetTunnelBridgeTransportType(tile);
01572 if (transport_type != mode || (transport_type == TRANSPORT_ROAD && (GetRoadTypes(tile) & sub_mode) == 0)) return 0;
01573
01574 DiagDirection dir = GetTunnelBridgeDirection(tile);
01575 if (side != INVALID_DIAGDIR && side != ReverseDiagDir(dir)) return 0;
01576 return CombineTrackStatus(TrackBitsToTrackdirBits(DiagDirToDiagTrackBits(dir)), TRACKDIR_BIT_NONE);
01577 }
01578
01579 static void ChangeTileOwner_TunnelBridge(TileIndex tile, Owner old_owner, Owner new_owner)
01580 {
01581 TileIndex other_end = GetOtherTunnelBridgeEnd(tile);
01582
01583
01584 uint num_pieces = tile < other_end ? (GetTunnelBridgeLength(tile, other_end) + 2) * TUNNELBRIDGE_TRACKBIT_FACTOR : 0;
01585
01586 for (RoadType rt = ROADTYPE_ROAD; rt < ROADTYPE_END; rt++) {
01587
01588 if (GetRoadOwner(tile, rt) == old_owner) {
01589 if (HasBit(GetRoadTypes(tile), rt)) {
01590
01591
01592 Company::Get(old_owner)->infrastructure.road[rt] -= num_pieces * 2;
01593 if (new_owner != INVALID_OWNER) Company::Get(new_owner)->infrastructure.road[rt] += num_pieces * 2;
01594 }
01595
01596 SetRoadOwner(tile, rt, new_owner == INVALID_OWNER ? OWNER_NONE : new_owner);
01597 }
01598 }
01599
01600 if (!IsTileOwner(tile, old_owner)) return;
01601
01602
01603
01604 TransportType tt = GetTunnelBridgeTransportType(tile);
01605 Company *old = Company::Get(old_owner);
01606 if (tt == TRANSPORT_RAIL) {
01607 old->infrastructure.rail[GetRailType(tile)] -= num_pieces;
01608 if (new_owner != INVALID_OWNER) Company::Get(new_owner)->infrastructure.rail[GetRailType(tile)] += num_pieces;
01609 } else if (tt == TRANSPORT_WATER) {
01610 old->infrastructure.water -= num_pieces;
01611 if (new_owner != INVALID_OWNER) Company::Get(new_owner)->infrastructure.water += num_pieces;
01612 }
01613
01614 if (new_owner != INVALID_OWNER) {
01615 SetTileOwner(tile, new_owner);
01616 } else {
01617 if (tt == TRANSPORT_RAIL) {
01618
01619
01620 CommandCost ret = DoCommand(tile, 0, 0, DC_EXEC | DC_BANKRUPT, CMD_LANDSCAPE_CLEAR);
01621 assert(ret.Succeeded());
01622 } else {
01623
01624 SetTileOwner(tile, OWNER_NONE);
01625 }
01626 }
01627 }
01628
01634 static const byte TUNNEL_SOUND_FRAME = 1;
01635
01644 extern const byte _tunnel_visibility_frame[DIAGDIR_END] = {12, 8, 8, 12};
01645
01646 static VehicleEnterTileStatus VehicleEnter_TunnelBridge(Vehicle *v, TileIndex tile, int x, int y)
01647 {
01648 int z = GetSlopePixelZ(x, y) - v->z_pos;
01649
01650 if (abs(z) > 2) return VETSB_CANNOT_ENTER;
01651
01652 const DiagDirection dir = GetTunnelBridgeDirection(tile);
01653
01654 const DiagDirection vdir = DirToDiagDir(v->direction);
01655
01656 byte pos = (DiagDirToAxis(vdir) == AXIS_X ? x : y) & TILE_UNIT_MASK;
01657
01658 byte frame = (vdir == DIAGDIR_NE || vdir == DIAGDIR_NW) ? TILE_SIZE - 1 - pos : pos;
01659
01660 if (IsTunnel(tile)) {
01661 if (v->type == VEH_TRAIN) {
01662 Train *t = Train::From(v);
01663
01664 if (t->track != TRACK_BIT_WORMHOLE && dir == vdir) {
01665 if (t->IsFrontEngine() && frame == TUNNEL_SOUND_FRAME) {
01666 if (!PlayVehicleSound(t, VSE_TUNNEL) && RailVehInfo(t->engine_type)->engclass == 0) {
01667 SndPlayVehicleFx(SND_05_TRAIN_THROUGH_TUNNEL, v);
01668 }
01669 return VETSB_CONTINUE;
01670 }
01671 if (frame == _tunnel_visibility_frame[dir]) {
01672 t->tile = tile;
01673 t->track = TRACK_BIT_WORMHOLE;
01674 t->vehstatus |= VS_HIDDEN;
01675 return VETSB_ENTERED_WORMHOLE;
01676 }
01677 }
01678
01679 if (dir == ReverseDiagDir(vdir) && frame == TILE_SIZE - _tunnel_visibility_frame[dir] && z == 0) {
01680
01681 t->tile = tile;
01682 t->track = DiagDirToDiagTrackBits(vdir);
01683 assert(t->track);
01684 t->vehstatus &= ~VS_HIDDEN;
01685 return VETSB_ENTERED_WORMHOLE;
01686 }
01687 } else if (v->type == VEH_ROAD) {
01688 RoadVehicle *rv = RoadVehicle::From(v);
01689
01690
01691 if (rv->state != RVSB_WORMHOLE && dir == vdir) {
01692 if (frame == _tunnel_visibility_frame[dir]) {
01693
01694 assert(frame == rv->frame + 1);
01695 rv->tile = tile;
01696 rv->state = RVSB_WORMHOLE;
01697 rv->vehstatus |= VS_HIDDEN;
01698 return VETSB_ENTERED_WORMHOLE;
01699 } else {
01700 return VETSB_CONTINUE;
01701 }
01702 }
01703
01704
01705 if (dir == ReverseDiagDir(vdir) && frame == TILE_SIZE - _tunnel_visibility_frame[dir] && z == 0) {
01706 rv->tile = tile;
01707 rv->state = DiagDirToDiagTrackdir(vdir);
01708 rv->frame = frame;
01709 rv->vehstatus &= ~VS_HIDDEN;
01710 return VETSB_ENTERED_WORMHOLE;
01711 }
01712 }
01713 } else {
01714 if (v->type != VEH_SHIP) {
01715
01716 uint16 spd = GetBridgeSpec(GetBridgeType(tile))->speed;
01717
01718 if (v->type == VEH_ROAD) spd *= 2;
01719 Vehicle *first = v->First();
01720 first->cur_speed = min(first->cur_speed, spd);
01721 }
01722
01723 if (vdir == dir) {
01724
01725 if (frame != TILE_SIZE - 1) return VETSB_CONTINUE;
01726 switch (v->type) {
01727 case VEH_TRAIN: {
01728 Train *t = Train::From(v);
01729 t->track = TRACK_BIT_WORMHOLE;
01730 ClrBit(t->gv_flags, GVF_GOINGUP_BIT);
01731 ClrBit(t->gv_flags, GVF_GOINGDOWN_BIT);
01732 break;
01733 }
01734
01735 case VEH_ROAD: {
01736 RoadVehicle *rv = RoadVehicle::From(v);
01737 rv->state = RVSB_WORMHOLE;
01738
01739 ClrBit(rv->gv_flags, GVF_GOINGUP_BIT);
01740 ClrBit(rv->gv_flags, GVF_GOINGDOWN_BIT);
01741 break;
01742 }
01743
01744 case VEH_SHIP:
01745 Ship::From(v)->state = TRACK_BIT_WORMHOLE;
01746 break;
01747
01748 default: NOT_REACHED();
01749 }
01750 return VETSB_ENTERED_WORMHOLE;
01751 } else if (vdir == ReverseDiagDir(dir)) {
01752 v->tile = tile;
01753 switch (v->type) {
01754 case VEH_TRAIN: {
01755 Train *t = Train::From(v);
01756 if (t->track == TRACK_BIT_WORMHOLE) {
01757 t->track = DiagDirToDiagTrackBits(vdir);
01758 return VETSB_ENTERED_WORMHOLE;
01759 }
01760 break;
01761 }
01762
01763 case VEH_ROAD: {
01764 RoadVehicle *rv = RoadVehicle::From(v);
01765 if (rv->state == RVSB_WORMHOLE) {
01766 rv->state = DiagDirToDiagTrackdir(vdir);
01767 rv->frame = 0;
01768 return VETSB_ENTERED_WORMHOLE;
01769 }
01770 break;
01771 }
01772
01773 case VEH_SHIP: {
01774 Ship *ship = Ship::From(v);
01775 if (ship->state == TRACK_BIT_WORMHOLE) {
01776 ship->state = DiagDirToDiagTrackBits(vdir);
01777 return VETSB_ENTERED_WORMHOLE;
01778 }
01779 break;
01780 }
01781
01782 default: NOT_REACHED();
01783 }
01784 }
01785 }
01786 return VETSB_CONTINUE;
01787 }
01788
01789 static CommandCost TerraformTile_TunnelBridge(TileIndex tile, DoCommandFlag flags, int z_new, Slope tileh_new)
01790 {
01791 if (_settings_game.construction.build_on_slopes && AutoslopeEnabled() && IsBridge(tile) && GetTunnelBridgeTransportType(tile) != TRANSPORT_WATER) {
01792 DiagDirection direction = GetTunnelBridgeDirection(tile);
01793 Axis axis = DiagDirToAxis(direction);
01794 CommandCost res;
01795 int z_old;
01796 Slope tileh_old = GetTileSlope(tile, &z_old);
01797
01798
01799 if ((direction == DIAGDIR_NW) || (direction == DIAGDIR_NE)) {
01800 CheckBridgeSlopeSouth(axis, &tileh_old, &z_old);
01801 res = CheckBridgeSlopeSouth(axis, &tileh_new, &z_new);
01802 } else {
01803 CheckBridgeSlopeNorth(axis, &tileh_old, &z_old);
01804 res = CheckBridgeSlopeNorth(axis, &tileh_new, &z_new);
01805 }
01806
01807
01808 if (res.Succeeded() && (z_old == z_new) && (tileh_old == tileh_new)) return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
01809 }
01810
01811 return DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
01812 }
01813
01814 extern const TileTypeProcs _tile_type_tunnelbridge_procs = {
01815 DrawTile_TunnelBridge,
01816 GetSlopePixelZ_TunnelBridge,
01817 ClearTile_TunnelBridge,
01818 NULL,
01819 GetTileDesc_TunnelBridge,
01820 GetTileTrackStatus_TunnelBridge,
01821 NULL,
01822 NULL,
01823 TileLoop_TunnelBridge,
01824 ChangeTileOwner_TunnelBridge,
01825 NULL,
01826 VehicleEnter_TunnelBridge,
01827 GetFoundation_TunnelBridge,
01828 TerraformTile_TunnelBridge,
01829 };