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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 "water_map.h"
00026 #include "pathfinder/yapf/yapf_cache.h"
00027 #include "newgrf_sound.h"
00028 #include "autoslope.h"
00029 #include "tunnelbridge_map.h"
00030 #include "strings_func.h"
00031 #include "date_func.h"
00032 #include "clear_func.h"
00033 #include "vehicle_func.h"
00034 #include "sound_func.h"
00035 #include "tunnelbridge.h"
00036 #include "cheat_type.h"
00037 #include "elrail_func.h"
00038 #include "pbs.h"
00039 #include "company_base.h"
00040 #include "newgrf_railtype.h"
00041 #include "object_base.h"
00042 #include "water.h"
00043 #include "company_gui.h"
00044
00045 #include "table/sprites.h"
00046 #include "table/strings.h"
00047 #include "table/bridge_land.h"
00048
00049 BridgeSpec _bridge[MAX_BRIDGES];
00050 TileIndex _build_tunnel_endtile;
00051
00053 static const int BRIDGE_Z_START = 3;
00054
00056 void ResetBridges()
00057 {
00058
00059 for (BridgeType i = 0; i < MAX_BRIDGES; i++) {
00060 if (_bridge[i].sprite_table != NULL) {
00061 for (BridgePieces j = BRIDGE_PIECE_NORTH; j < BRIDGE_PIECE_INVALID; j++) free(_bridge[i].sprite_table[j]);
00062 free(_bridge[i].sprite_table);
00063 }
00064 }
00065
00066
00067 memset(&_bridge, 0, sizeof(_bridge));
00068
00069 memcpy(&_bridge, &_orig_bridge, sizeof(_orig_bridge));
00070 }
00071
00078 int CalcBridgeLenCostFactor(int length)
00079 {
00080 if (length < 2) return length;
00081
00082 length -= 2;
00083 int sum = 2;
00084 for (int delta = 1;; delta++) {
00085 for (int count = 0; count < delta; count++) {
00086 if (length == 0) return sum;
00087 sum += delta;
00088 length--;
00089 }
00090 }
00091 }
00092
00099 Foundation GetBridgeFoundation(Slope tileh, Axis axis)
00100 {
00101 if (tileh == SLOPE_FLAT ||
00102 ((tileh == SLOPE_NE || tileh == SLOPE_SW) && axis == AXIS_X) ||
00103 ((tileh == SLOPE_NW || tileh == SLOPE_SE) && axis == AXIS_Y)) return FOUNDATION_NONE;
00104
00105 return (HasSlopeHighestCorner(tileh) ? InclinedFoundation(axis) : FlatteningFoundation(tileh));
00106 }
00107
00115 bool HasBridgeFlatRamp(Slope tileh, Axis axis)
00116 {
00117 ApplyFoundationToSlope(GetBridgeFoundation(tileh, axis), &tileh);
00118
00119 return (tileh != SLOPE_FLAT);
00120 }
00121
00122 static inline const PalSpriteID *GetBridgeSpriteTable(int index, BridgePieces table)
00123 {
00124 const BridgeSpec *bridge = GetBridgeSpec(index);
00125 assert(table < BRIDGE_PIECE_INVALID);
00126 if (bridge->sprite_table == NULL || bridge->sprite_table[table] == NULL) {
00127 return _bridge_sprite_table[index][table];
00128 } else {
00129 return bridge->sprite_table[table];
00130 }
00131 }
00132
00133
00142 static CommandCost CheckBridgeSlopeNorth(Axis axis, Slope *tileh, int *z)
00143 {
00144 Foundation f = GetBridgeFoundation(*tileh, axis);
00145 *z += ApplyFoundationToSlope(f, tileh);
00146
00147 Slope valid_inclined = (axis == AXIS_X ? SLOPE_NE : SLOPE_NW);
00148 if ((*tileh != SLOPE_FLAT) && (*tileh != valid_inclined)) return CMD_ERROR;
00149
00150 if (f == FOUNDATION_NONE) return CommandCost();
00151
00152 return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
00153 }
00154
00163 static CommandCost CheckBridgeSlopeSouth(Axis axis, Slope *tileh, int *z)
00164 {
00165 Foundation f = GetBridgeFoundation(*tileh, axis);
00166 *z += ApplyFoundationToSlope(f, tileh);
00167
00168 Slope valid_inclined = (axis == AXIS_X ? SLOPE_SW : SLOPE_SE);
00169 if ((*tileh != SLOPE_FLAT) && (*tileh != valid_inclined)) return CMD_ERROR;
00170
00171 if (f == FOUNDATION_NONE) return CommandCost();
00172
00173 return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
00174 }
00175
00182 CommandCost CheckBridgeAvailability(BridgeType bridge_type, uint bridge_len, DoCommandFlag flags)
00183 {
00184 if (flags & DC_QUERY_COST) {
00185 if (bridge_len <= _settings_game.construction.max_bridge_length) return CommandCost();
00186 return_cmd_error(STR_ERROR_BRIDGE_TOO_LONG);
00187 }
00188
00189 if (bridge_type >= MAX_BRIDGES) return CMD_ERROR;
00190
00191 const BridgeSpec *b = GetBridgeSpec(bridge_type);
00192 if (b->avail_year > _cur_year) return CMD_ERROR;
00193
00194 uint max = min(b->max_length, _settings_game.construction.max_bridge_length);
00195
00196 if (b->min_length > bridge_len) return CMD_ERROR;
00197 if (bridge_len <= max) return CommandCost();
00198 return_cmd_error(STR_ERROR_BRIDGE_TOO_LONG);
00199 }
00200
00213 CommandCost CmdBuildBridge(TileIndex end_tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00214 {
00215 CompanyID company = _current_company;
00216
00217 RailType railtype = INVALID_RAILTYPE;
00218 RoadTypes roadtypes = ROADTYPES_NONE;
00219
00220
00221 BridgeType bridge_type = GB(p2, 0, 8);
00222
00223 if (!IsValidTile(p1)) return_cmd_error(STR_ERROR_BRIDGE_THROUGH_MAP_BORDER);
00224
00225 TransportType transport_type = Extract<TransportType, 15, 2>(p2);
00226
00227
00228 switch (transport_type) {
00229 case TRANSPORT_ROAD:
00230 roadtypes = Extract<RoadTypes, 8, 2>(p2);
00231 if (!HasExactlyOneBit(roadtypes) || !HasRoadTypesAvail(company, roadtypes)) return CMD_ERROR;
00232 break;
00233
00234 case TRANSPORT_RAIL:
00235 railtype = Extract<RailType, 8, 4>(p2);
00236 if (!ValParamRailtype(railtype)) return CMD_ERROR;
00237 break;
00238
00239 case TRANSPORT_WATER:
00240 break;
00241
00242 default:
00243
00244 return CMD_ERROR;
00245 }
00246 TileIndex tile_start = p1;
00247 TileIndex tile_end = end_tile;
00248
00249 if (company == OWNER_DEITY) {
00250 if (transport_type != TRANSPORT_ROAD) return CMD_ERROR;
00251 const Town *town = CalcClosestTownFromTile(tile_start);
00252
00253 company = OWNER_TOWN;
00254
00255
00256 if (town == NULL || DistanceSquare(tile_start, town->xy) > town->squared_town_zone_radius[HZB_TOWN_EDGE]) {
00257 company = OWNER_NONE;
00258 }
00259 }
00260
00261 if (tile_start == tile_end) {
00262 return_cmd_error(STR_ERROR_CAN_T_START_AND_END_ON);
00263 }
00264
00265 Axis direction;
00266 if (TileX(tile_start) == TileX(tile_end)) {
00267 direction = AXIS_Y;
00268 } else if (TileY(tile_start) == TileY(tile_end)) {
00269 direction = AXIS_X;
00270 } else {
00271 return_cmd_error(STR_ERROR_START_AND_END_MUST_BE_IN);
00272 }
00273
00274 if (tile_end < tile_start) Swap(tile_start, tile_end);
00275
00276 uint bridge_len = GetTunnelBridgeLength(tile_start, tile_end);
00277 if (transport_type != TRANSPORT_WATER) {
00278
00279 CommandCost ret = CheckBridgeAvailability(bridge_type, bridge_len, flags);
00280 if (ret.Failed()) return ret;
00281 } else {
00282 if (bridge_len > _settings_game.construction.max_bridge_length) return_cmd_error(STR_ERROR_BRIDGE_TOO_LONG);
00283 }
00284
00285 int z_start;
00286 int z_end;
00287 Slope tileh_start = GetTileSlope(tile_start, &z_start);
00288 Slope tileh_end = GetTileSlope(tile_end, &z_end);
00289 bool pbs_reservation = false;
00290
00291 CommandCost terraform_cost_north = CheckBridgeSlopeNorth(direction, &tileh_start, &z_start);
00292 CommandCost terraform_cost_south = CheckBridgeSlopeSouth(direction, &tileh_end, &z_end);
00293
00294
00295 if (transport_type == TRANSPORT_WATER && (tileh_start == SLOPE_FLAT || tileh_end == SLOPE_FLAT)) return_cmd_error(STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION);
00296 if (z_start != z_end) return_cmd_error(STR_ERROR_BRIDGEHEADS_NOT_SAME_HEIGHT);
00297
00298 CommandCost cost(EXPENSES_CONSTRUCTION);
00299 Owner owner;
00300 if (IsBridgeTile(tile_start) && IsBridgeTile(tile_end) &&
00301 GetOtherBridgeEnd(tile_start) == tile_end &&
00302 GetTunnelBridgeTransportType(tile_start) == transport_type) {
00303
00304
00305
00306 if (transport_type == TRANSPORT_RAIL && GetRailType(tile_start) != railtype) {
00307 return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00308 }
00309
00310
00311 if (!(flags & DC_QUERY_COST) && IsTileOwner(tile_start, OWNER_TOWN) &&
00312 GetBridgeSpec(bridge_type)->speed < GetBridgeSpec(GetBridgeType(tile_start))->speed) {
00313 Town *t = ClosestTownFromTile(tile_start, UINT_MAX);
00314
00315 if (t == NULL) {
00316 return CMD_ERROR;
00317 } else {
00318 SetDParam(0, t->index);
00319 return_cmd_error(STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS);
00320 }
00321 }
00322
00323
00324 if (!(flags & DC_QUERY_COST) && bridge_type == GetBridgeType(tile_start)) {
00325 return_cmd_error(STR_ERROR_ALREADY_BUILT);
00326 }
00327
00328
00329 if (!IsTileOwner(tile_start, company) && !IsTileOwner(tile_start, OWNER_TOWN)) {
00330 return_cmd_error(STR_ERROR_AREA_IS_OWNED_BY_ANOTHER);
00331 }
00332
00333 cost.AddCost((bridge_len + 1) * _price[PR_CLEAR_BRIDGE]);
00334 owner = GetTileOwner(tile_start);
00335
00336 switch (transport_type) {
00337 case TRANSPORT_RAIL:
00338
00339 pbs_reservation = HasTunnelBridgeReservation(tile_start);
00340 break;
00341
00342 case TRANSPORT_ROAD:
00343
00344 roadtypes |= GetRoadTypes(tile_start);
00345 break;
00346
00347 default: break;
00348 }
00349 } else {
00350
00351
00352 bool allow_on_slopes = (_settings_game.construction.build_on_slopes && transport_type != TRANSPORT_WATER);
00353
00354
00355 CommandCost ret = DoCommand(tile_start, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00356 if (ret.Failed()) return ret;
00357 cost = ret;
00358
00359 if (terraform_cost_north.Failed() || (terraform_cost_north.GetCost() != 0 && !allow_on_slopes)) return_cmd_error(STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION);
00360 cost.AddCost(terraform_cost_north);
00361
00362
00363 ret = DoCommand(tile_end, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00364 if (ret.Failed()) return ret;
00365 cost.AddCost(ret);
00366
00367
00368 if (terraform_cost_south.Failed() || (terraform_cost_south.GetCost() != 0 && !allow_on_slopes)) return_cmd_error(STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION);
00369 cost.AddCost(terraform_cost_south);
00370
00371 const TileIndex heads[] = {tile_start, tile_end};
00372 for (int i = 0; i < 2; i++) {
00373 if (MayHaveBridgeAbove(heads[i])) {
00374 if (IsBridgeAbove(heads[i])) {
00375 TileIndex north_head = GetNorthernBridgeEnd(heads[i]);
00376
00377 if (direction == GetBridgeAxis(heads[i])) return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00378
00379 if (z_start + 1 == GetBridgeHeight(north_head)) {
00380 return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00381 }
00382 }
00383 }
00384 }
00385
00386 TileIndexDiff delta = (direction == AXIS_X ? TileDiffXY(1, 0) : TileDiffXY(0, 1));
00387 for (TileIndex tile = tile_start + delta; tile != tile_end; tile += delta) {
00388 if (GetTileMaxZ(tile) > z_start) return_cmd_error(STR_ERROR_BRIDGE_TOO_LOW_FOR_TERRAIN);
00389
00390 if (MayHaveBridgeAbove(tile) && IsBridgeAbove(tile)) {
00391
00392 return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00393 }
00394
00395 switch (GetTileType(tile)) {
00396 case MP_WATER:
00397 if (!IsWater(tile) && !IsCoast(tile)) goto not_valid_below;
00398 break;
00399
00400 case MP_RAILWAY:
00401 if (!IsPlainRail(tile)) goto not_valid_below;
00402 break;
00403
00404 case MP_ROAD:
00405 if (IsRoadDepot(tile)) goto not_valid_below;
00406 break;
00407
00408 case MP_TUNNELBRIDGE:
00409 if (IsTunnel(tile)) break;
00410 if (direction == DiagDirToAxis(GetTunnelBridgeDirection(tile))) goto not_valid_below;
00411 if (z_start < GetBridgeHeight(tile)) goto not_valid_below;
00412 break;
00413
00414 case MP_OBJECT: {
00415 const ObjectSpec *spec = ObjectSpec::GetByTile(tile);
00416 if ((spec->flags & OBJECT_FLAG_ALLOW_UNDER_BRIDGE) == 0) goto not_valid_below;
00417 if (GetTileMaxZ(tile) + spec->height > z_start) goto not_valid_below;
00418 break;
00419 }
00420
00421 case MP_CLEAR:
00422 break;
00423
00424 default:
00425 not_valid_below:;
00426
00427 ret = DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00428 if (ret.Failed()) return ret;
00429 cost.AddCost(ret);
00430 break;
00431 }
00432
00433 if (flags & DC_EXEC) {
00434
00435
00436
00437 SetBridgeMiddle(tile, direction);
00438 }
00439 }
00440
00441 owner = company;
00442 }
00443
00444
00445 if (flags & DC_EXEC) {
00446 DiagDirection dir = AxisToDiagDir(direction);
00447
00448 Company *c = Company::GetIfValid(owner);
00449 switch (transport_type) {
00450 case TRANSPORT_RAIL:
00451
00452 if (!IsBridgeTile(tile_start) && c != NULL) c->infrastructure.rail[railtype] += (bridge_len + 2) * TUNNELBRIDGE_TRACKBIT_FACTOR;
00453 MakeRailBridgeRamp(tile_start, owner, bridge_type, dir, railtype);
00454 MakeRailBridgeRamp(tile_end, owner, bridge_type, ReverseDiagDir(dir), railtype);
00455 SetTunnelBridgeReservation(tile_start, pbs_reservation);
00456 SetTunnelBridgeReservation(tile_end, pbs_reservation);
00457 break;
00458
00459 case TRANSPORT_ROAD:
00460 if (c != NULL) {
00461
00462 RoadType new_rt;
00463 FOR_EACH_SET_ROADTYPE(new_rt, roadtypes ^ (IsBridgeTile(tile_start) ? GetRoadTypes(tile_start) : ROADTYPES_NONE)) {
00464
00465 Company::Get(owner)->infrastructure.road[new_rt] += (bridge_len + 2) * 2 * TUNNELBRIDGE_TRACKBIT_FACTOR;
00466 }
00467 }
00468 MakeRoadBridgeRamp(tile_start, owner, bridge_type, dir, roadtypes);
00469 MakeRoadBridgeRamp(tile_end, owner, bridge_type, ReverseDiagDir(dir), roadtypes);
00470 break;
00471
00472 case TRANSPORT_WATER:
00473 if (!IsBridgeTile(tile_start) && c != NULL) c->infrastructure.water += (bridge_len + 2) * TUNNELBRIDGE_TRACKBIT_FACTOR;
00474 MakeAqueductBridgeRamp(tile_start, owner, dir);
00475 MakeAqueductBridgeRamp(tile_end, owner, ReverseDiagDir(dir));
00476 break;
00477
00478 default:
00479 NOT_REACHED();
00480 }
00481
00482
00483 TileIndexDiff delta = (direction == AXIS_X ? TileDiffXY(1, 0) : TileDiffXY(0, 1));
00484 for (TileIndex tile = tile_start; tile <= tile_end; tile += delta) {
00485 MarkTileDirtyByTile(tile);
00486 }
00487 DirtyCompanyInfrastructureWindows(owner);
00488 }
00489
00490 if ((flags & DC_EXEC) && transport_type == TRANSPORT_RAIL) {
00491 Track track = AxisToTrack(direction);
00492 AddSideToSignalBuffer(tile_start, INVALID_DIAGDIR, company);
00493 YapfNotifyTrackLayoutChange(tile_start, track);
00494 }
00495
00496
00497
00498
00499
00500 Company *c = Company::GetIfValid(company);
00501 if (!(flags & DC_QUERY_COST) || (c != NULL && c->is_ai)) {
00502 bridge_len += 2;
00503
00504 switch (transport_type) {
00505 case TRANSPORT_ROAD: cost.AddCost(bridge_len * _price[PR_BUILD_ROAD] * 2 * CountBits(roadtypes)); break;
00506 case TRANSPORT_RAIL: cost.AddCost(bridge_len * RailBuildCost(railtype)); break;
00507 default: break;
00508 }
00509
00510 if (c != NULL) bridge_len = CalcBridgeLenCostFactor(bridge_len);
00511
00512 if (transport_type != TRANSPORT_WATER) {
00513 cost.AddCost((int64)bridge_len * _price[PR_BUILD_BRIDGE] * GetBridgeSpec(bridge_type)->price >> 8);
00514 } else {
00515
00516 cost.AddCost((int64)bridge_len * _price[PR_BUILD_AQUEDUCT]);
00517 }
00518
00519 }
00520
00521 return cost;
00522 }
00523
00524
00535 CommandCost CmdBuildTunnel(TileIndex start_tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00536 {
00537 CompanyID company = _current_company;
00538
00539 TransportType transport_type = Extract<TransportType, 8, 2>(p1);
00540
00541 RailType railtype = INVALID_RAILTYPE;
00542 RoadTypes rts = ROADTYPES_NONE;
00543 _build_tunnel_endtile = 0;
00544 switch (transport_type) {
00545 case TRANSPORT_RAIL:
00546 railtype = Extract<RailType, 0, 4>(p1);
00547 if (!ValParamRailtype(railtype)) return CMD_ERROR;
00548 break;
00549
00550 case TRANSPORT_ROAD:
00551 rts = Extract<RoadTypes, 0, 2>(p1);
00552 if (!HasExactlyOneBit(rts) || !HasRoadTypesAvail(company, rts)) return CMD_ERROR;
00553 break;
00554
00555 default: return CMD_ERROR;
00556 }
00557
00558 if (company == OWNER_DEITY) {
00559 if (transport_type != TRANSPORT_ROAD) return CMD_ERROR;
00560 const Town *town = CalcClosestTownFromTile(start_tile);
00561
00562 company = OWNER_TOWN;
00563
00564
00565 if (town == NULL || DistanceSquare(start_tile, town->xy) > town->squared_town_zone_radius[HZB_TOWN_EDGE]) {
00566 company = OWNER_NONE;
00567 }
00568 }
00569
00570 int start_z;
00571 int end_z;
00572 Slope start_tileh = GetTileSlope(start_tile, &start_z);
00573 DiagDirection direction = GetInclinedSlopeDirection(start_tileh);
00574 if (direction == INVALID_DIAGDIR) return_cmd_error(STR_ERROR_SITE_UNSUITABLE_FOR_TUNNEL);
00575
00576 if (HasTileWaterGround(start_tile)) return_cmd_error(STR_ERROR_CAN_T_BUILD_ON_WATER);
00577
00578 CommandCost ret = DoCommand(start_tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00579 if (ret.Failed()) return ret;
00580
00581
00582
00583
00584
00585
00586 TileIndexDiff delta = TileOffsByDiagDir(direction);
00587 DiagDirection tunnel_in_way_dir;
00588 if (DiagDirToAxis(direction) == AXIS_Y) {
00589 tunnel_in_way_dir = (TileX(start_tile) < (MapMaxX() / 2)) ? DIAGDIR_SW : DIAGDIR_NE;
00590 } else {
00591 tunnel_in_way_dir = (TileY(start_tile) < (MapMaxX() / 2)) ? DIAGDIR_SE : DIAGDIR_NW;
00592 }
00593
00594 TileIndex end_tile = start_tile;
00595
00596
00597 int tiles_coef = 3;
00598
00599 int tiles = 0;
00600
00601 int tiles_bump = 25;
00602
00603 CommandCost cost(EXPENSES_CONSTRUCTION);
00604 Slope end_tileh;
00605 for (;;) {
00606 end_tile += delta;
00607 if (!IsValidTile(end_tile)) return_cmd_error(STR_ERROR_TUNNEL_THROUGH_MAP_BORDER);
00608 end_tileh = GetTileSlope(end_tile, &end_z);
00609
00610 if (start_z == end_z) break;
00611
00612 if (!_cheats.crossing_tunnels.value && IsTunnelInWayDir(end_tile, start_z, tunnel_in_way_dir)) {
00613 return_cmd_error(STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY);
00614 }
00615
00616 tiles++;
00617 if (tiles == tiles_bump) {
00618 tiles_coef++;
00619 tiles_bump *= 2;
00620 }
00621
00622 cost.AddCost(_price[PR_BUILD_TUNNEL]);
00623 cost.AddCost(cost.GetCost() >> tiles_coef);
00624 }
00625
00626
00627 cost.AddCost(_price[PR_BUILD_TUNNEL]);
00628 cost.AddCost(ret);
00629
00630
00631 _build_tunnel_endtile = end_tile;
00632
00633 if (tiles > _settings_game.construction.max_tunnel_length) return_cmd_error(STR_ERROR_TUNNEL_TOO_LONG);
00634
00635 if (HasTileWaterGround(end_tile)) return_cmd_error(STR_ERROR_CAN_T_BUILD_ON_WATER);
00636
00637
00638 ret = DoCommand(end_tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00639 if (ret.Failed()) return_cmd_error(STR_ERROR_UNABLE_TO_EXCAVATE_LAND);
00640 cost.AddCost(ret);
00641
00642
00643 if (end_tileh != ComplementSlope(start_tileh)) {
00644
00645
00646 ClearedObjectArea *coa = FindClearedObject(end_tile);
00647 if (coa == NULL) {
00648 coa = _cleared_object_areas.Append();
00649 coa->first_tile = end_tile;
00650 coa->area = TileArea(end_tile, 1, 1);
00651 }
00652
00653
00654 TileIndex old_first_tile = coa->first_tile;
00655 coa->first_tile = INVALID_TILE;
00656 ret = DoCommand(end_tile, end_tileh & start_tileh, 0, flags, CMD_TERRAFORM_LAND);
00657 coa->first_tile = old_first_tile;
00658 if (ret.Failed()) return_cmd_error(STR_ERROR_UNABLE_TO_EXCAVATE_LAND);
00659 cost.AddCost(ret);
00660 }
00661 cost.AddCost(_price[PR_BUILD_TUNNEL]);
00662
00663
00664 switch (transport_type) {
00665 case TRANSPORT_ROAD: cost.AddCost((tiles + 2) * _price[PR_BUILD_ROAD] * 2); break;
00666 case TRANSPORT_RAIL: cost.AddCost((tiles + 2) * RailBuildCost(railtype)); break;
00667 default: break;
00668 }
00669
00670 if (flags & DC_EXEC) {
00671 Company *c = Company::GetIfValid(company);
00672 uint num_pieces = (tiles + 2) * TUNNELBRIDGE_TRACKBIT_FACTOR;
00673 if (transport_type == TRANSPORT_RAIL) {
00674 if (!IsTunnelTile(start_tile) && c != NULL) c->infrastructure.rail[railtype] += num_pieces;
00675 MakeRailTunnel(start_tile, company, direction, railtype);
00676 MakeRailTunnel(end_tile, company, ReverseDiagDir(direction), railtype);
00677 AddSideToSignalBuffer(start_tile, INVALID_DIAGDIR, company);
00678 YapfNotifyTrackLayoutChange(start_tile, DiagDirToDiagTrack(direction));
00679 } else {
00680 if (c != NULL) {
00681 RoadType rt;
00682 FOR_EACH_SET_ROADTYPE(rt, rts ^ (IsTunnelTile(start_tile) ? GetRoadTypes(start_tile) : ROADTYPES_NONE)) {
00683 c->infrastructure.road[rt] += num_pieces * 2;
00684 }
00685 }
00686 MakeRoadTunnel(start_tile, company, direction, rts);
00687 MakeRoadTunnel(end_tile, company, ReverseDiagDir(direction), rts);
00688 }
00689 DirtyCompanyInfrastructureWindows(company);
00690 }
00691
00692 return cost;
00693 }
00694
00695
00701 static inline CommandCost CheckAllowRemoveTunnelBridge(TileIndex tile)
00702 {
00703
00704 if (_current_company == OWNER_WATER || _game_mode == GM_EDITOR) return CommandCost();
00705
00706 switch (GetTunnelBridgeTransportType(tile)) {
00707 case TRANSPORT_ROAD: {
00708 RoadTypes rts = GetRoadTypes(tile);
00709 Owner road_owner = _current_company;
00710 Owner tram_owner = _current_company;
00711
00712 if (HasBit(rts, ROADTYPE_ROAD)) road_owner = GetRoadOwner(tile, ROADTYPE_ROAD);
00713 if (HasBit(rts, ROADTYPE_TRAM)) tram_owner = GetRoadOwner(tile, ROADTYPE_TRAM);
00714
00715
00716 if (road_owner == OWNER_TOWN && !(_settings_game.construction.extra_dynamite || _cheats.magic_bulldozer.value)) {
00717 return CheckTileOwnership(tile);
00718 }
00719 if (road_owner == OWNER_NONE || road_owner == OWNER_TOWN) road_owner = _current_company;
00720 if (tram_owner == OWNER_NONE) tram_owner = _current_company;
00721
00722 CommandCost ret = CheckOwnership(road_owner, tile);
00723 if (ret.Succeeded()) ret = CheckOwnership(tram_owner, tile);
00724 return ret;
00725 }
00726
00727 case TRANSPORT_RAIL:
00728 return CheckOwnership(GetTileOwner(tile));
00729
00730 case TRANSPORT_WATER: {
00731
00732 Owner aqueduct_owner = GetTileOwner(tile);
00733 if (aqueduct_owner == OWNER_NONE) aqueduct_owner = _current_company;
00734 return CheckOwnership(aqueduct_owner);
00735 }
00736
00737 default: NOT_REACHED();
00738 }
00739 }
00740
00747 static CommandCost DoClearTunnel(TileIndex tile, DoCommandFlag flags)
00748 {
00749 CommandCost ret = CheckAllowRemoveTunnelBridge(tile);
00750 if (ret.Failed()) return ret;
00751
00752 TileIndex endtile = GetOtherTunnelEnd(tile);
00753
00754 ret = TunnelBridgeIsFree(tile, endtile);
00755 if (ret.Failed()) return ret;
00756
00757 _build_tunnel_endtile = endtile;
00758
00759 Town *t = NULL;
00760 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00761 t = ClosestTownFromTile(tile, UINT_MAX);
00762
00763
00764
00765 CommandCost ret = CheckforTownRating(flags, t, TUNNELBRIDGE_REMOVE);
00766 if (ret.Failed()) return ret;
00767 }
00768
00769
00770
00771 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00772 ChangeTownRating(t, RATING_TUNNEL_BRIDGE_DOWN_STEP, RATING_TUNNEL_BRIDGE_MINIMUM, flags);
00773 }
00774
00775 uint len = GetTunnelBridgeLength(tile, endtile) + 2;
00776
00777 if (flags & DC_EXEC) {
00778 if (GetTunnelBridgeTransportType(tile) == TRANSPORT_RAIL) {
00779
00780 DiagDirection dir = GetTunnelBridgeDirection(tile);
00781 Track track = DiagDirToDiagTrack(dir);
00782 Owner owner = GetTileOwner(tile);
00783
00784 Train *v = NULL;
00785 if (HasTunnelBridgeReservation(tile)) {
00786 v = GetTrainForReservation(tile, track);
00787 if (v != NULL) FreeTrainTrackReservation(v);
00788 }
00789
00790 if (Company::IsValidID(owner)) {
00791 Company::Get(owner)->infrastructure.rail[GetRailType(tile)] -= len * TUNNELBRIDGE_TRACKBIT_FACTOR;
00792 DirtyCompanyInfrastructureWindows(owner);
00793 }
00794
00795 DoClearSquare(tile);
00796 DoClearSquare(endtile);
00797
00798
00799 AddSideToSignalBuffer(tile, ReverseDiagDir(dir), owner);
00800 AddSideToSignalBuffer(endtile, dir, owner);
00801
00802 YapfNotifyTrackLayoutChange(tile, track);
00803 YapfNotifyTrackLayoutChange(endtile, track);
00804
00805 if (v != NULL) TryPathReserve(v);
00806 } else {
00807 RoadType rt;
00808 FOR_EACH_SET_ROADTYPE(rt, GetRoadTypes(tile)) {
00809
00810 Company *c = Company::GetIfValid(GetRoadOwner(tile, rt));
00811 if (c != NULL) {
00812 c->infrastructure.road[rt] -= len * 2 * TUNNELBRIDGE_TRACKBIT_FACTOR;
00813 DirtyCompanyInfrastructureWindows(c->index);
00814 }
00815 }
00816
00817 DoClearSquare(tile);
00818 DoClearSquare(endtile);
00819 }
00820 }
00821 return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_CLEAR_TUNNEL] * len);
00822 }
00823
00824
00831 static CommandCost DoClearBridge(TileIndex tile, DoCommandFlag flags)
00832 {
00833 CommandCost ret = CheckAllowRemoveTunnelBridge(tile);
00834 if (ret.Failed()) return ret;
00835
00836 TileIndex endtile = GetOtherBridgeEnd(tile);
00837
00838 ret = TunnelBridgeIsFree(tile, endtile);
00839 if (ret.Failed()) return ret;
00840
00841 DiagDirection direction = GetTunnelBridgeDirection(tile);
00842 TileIndexDiff delta = TileOffsByDiagDir(direction);
00843
00844 Town *t = NULL;
00845 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00846 t = ClosestTownFromTile(tile, UINT_MAX);
00847
00848
00849
00850 CommandCost ret = CheckforTownRating(flags, t, TUNNELBRIDGE_REMOVE);
00851 if (ret.Failed()) return ret;
00852 }
00853
00854
00855
00856 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00857 ChangeTownRating(t, RATING_TUNNEL_BRIDGE_DOWN_STEP, RATING_TUNNEL_BRIDGE_MINIMUM, flags);
00858 }
00859
00860 Money base_cost = (GetTunnelBridgeTransportType(tile) != TRANSPORT_WATER) ? _price[PR_CLEAR_BRIDGE] : _price[PR_CLEAR_AQUEDUCT];
00861 uint len = GetTunnelBridgeLength(tile, endtile) + 2;
00862
00863 if (flags & DC_EXEC) {
00864
00865 bool rail = GetTunnelBridgeTransportType(tile) == TRANSPORT_RAIL;
00866 Owner owner = GetTileOwner(tile);
00867 int height = GetBridgeHeight(tile);
00868 Train *v = NULL;
00869
00870 if (rail && HasTunnelBridgeReservation(tile)) {
00871 v = GetTrainForReservation(tile, DiagDirToDiagTrack(direction));
00872 if (v != NULL) FreeTrainTrackReservation(v);
00873 }
00874
00875
00876 if (rail) {
00877 if (Company::IsValidID(owner)) Company::Get(owner)->infrastructure.rail[GetRailType(tile)] -= len * TUNNELBRIDGE_TRACKBIT_FACTOR;
00878 } else if (GetTunnelBridgeTransportType(tile) == TRANSPORT_ROAD) {
00879 RoadType rt;
00880 FOR_EACH_SET_ROADTYPE(rt, GetRoadTypes(tile)) {
00881 Company *c = Company::GetIfValid(GetRoadOwner(tile, rt));
00882 if (c != NULL) {
00883
00884 c->infrastructure.road[rt] -= len * 2 * TUNNELBRIDGE_TRACKBIT_FACTOR;
00885 DirtyCompanyInfrastructureWindows(c->index);
00886 }
00887 }
00888 } else {
00889 if (Company::IsValidID(owner)) Company::Get(owner)->infrastructure.water -= len * TUNNELBRIDGE_TRACKBIT_FACTOR;
00890 }
00891 DirtyCompanyInfrastructureWindows(owner);
00892
00893 DoClearSquare(tile);
00894 DoClearSquare(endtile);
00895 for (TileIndex c = tile + delta; c != endtile; c += delta) {
00896
00897 if (IsNormalRoadTile(c) && GetRoadside(c) == ROADSIDE_TREES) {
00898 int minz = GetTileMaxZ(c) + 3;
00899 if (height < minz) SetRoadside(c, ROADSIDE_PAVED);
00900 }
00901 ClearBridgeMiddle(c);
00902 MarkTileDirtyByTile(c);
00903 }
00904
00905 if (rail) {
00906
00907 AddSideToSignalBuffer(tile, ReverseDiagDir(direction), owner);
00908 AddSideToSignalBuffer(endtile, direction, owner);
00909
00910 Track track = DiagDirToDiagTrack(direction);
00911 YapfNotifyTrackLayoutChange(tile, track);
00912 YapfNotifyTrackLayoutChange(endtile, track);
00913
00914 if (v != NULL) TryPathReserve(v, true);
00915 }
00916 }
00917
00918 return CommandCost(EXPENSES_CONSTRUCTION, len * base_cost);
00919 }
00920
00927 static CommandCost ClearTile_TunnelBridge(TileIndex tile, DoCommandFlag flags)
00928 {
00929 if (IsTunnel(tile)) {
00930 if (flags & DC_AUTO) return_cmd_error(STR_ERROR_MUST_DEMOLISH_TUNNEL_FIRST);
00931 return DoClearTunnel(tile, flags);
00932 } else {
00933 if (flags & DC_AUTO) return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00934 return DoClearBridge(tile, flags);
00935 }
00936 }
00937
00948 static inline void DrawPillar(const PalSpriteID *psid, int x, int y, int z, int w, int h, const SubSprite *subsprite)
00949 {
00950 static const int PILLAR_Z_OFFSET = TILE_HEIGHT - BRIDGE_Z_START;
00951 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);
00952 }
00953
00965 static int DrawPillarColumn(int z_bottom, int z_top, const PalSpriteID *psid, int x, int y, int w, int h)
00966 {
00967 int cur_z;
00968 for (cur_z = z_top; cur_z >= z_bottom; cur_z -= TILE_HEIGHT) {
00969 DrawPillar(psid, x, y, cur_z, w, h, NULL);
00970 }
00971 return cur_z;
00972 }
00973
00985 static void DrawBridgePillars(const PalSpriteID *psid, const TileInfo *ti, Axis axis, bool drawfarpillar, int x, int y, int z_bridge)
00986 {
00987 static const int bounding_box_size[2] = {16, 2};
00988 static const int back_pillar_offset[2] = { 0, 9};
00989
00990 static const int INF = 1000;
00991 static const SubSprite half_pillar_sub_sprite[2][2] = {
00992 { { -14, -INF, INF, INF }, { -INF, -INF, -15, INF } },
00993 { { -INF, -INF, 15, INF }, { 16, -INF, INF, INF } },
00994 };
00995
00996 if (psid->sprite == 0) return;
00997
00998
00999 DiagDirection south_dir = AxisToDiagDir(axis);
01000 int z_front_north = ti->z;
01001 int z_back_north = ti->z;
01002 int z_front_south = ti->z;
01003 int z_back_south = ti->z;
01004 GetSlopePixelZOnEdge(ti->tileh, south_dir, &z_front_south, &z_back_south);
01005 GetSlopePixelZOnEdge(ti->tileh, ReverseDiagDir(south_dir), &z_front_north, &z_back_north);
01006
01007
01008 int z_front = max(z_front_north, z_front_south);
01009 int z_back = max(z_back_north, z_back_south);
01010
01011
01012 int w = bounding_box_size[axis];
01013 int h = bounding_box_size[OtherAxis(axis)];
01014
01015 int x_back = x - back_pillar_offset[axis];
01016 int y_back = y - back_pillar_offset[OtherAxis(axis)];
01017
01018
01019 int bottom_z = DrawPillarColumn(z_front, z_bridge, psid, x, y, w, h);
01020 if (z_front_north < z_front) DrawPillar(psid, x, y, bottom_z, w, h, &half_pillar_sub_sprite[axis][0]);
01021 if (z_front_south < z_front) DrawPillar(psid, x, y, bottom_z, w, h, &half_pillar_sub_sprite[axis][1]);
01022
01023
01024 int z_bridge_back = z_bridge - 2 * (int)TILE_HEIGHT;
01025 if (drawfarpillar && (z_back_north <= z_bridge_back || z_back_south <= z_bridge_back)) {
01026 bottom_z = DrawPillarColumn(z_back, z_bridge_back, psid, x_back, y_back, w, h);
01027 if (z_back_north < z_back) DrawPillar(psid, x_back, y_back, bottom_z, w, h, &half_pillar_sub_sprite[axis][0]);
01028 if (z_back_south < z_back) DrawPillar(psid, x_back, y_back, bottom_z, w, h, &half_pillar_sub_sprite[axis][1]);
01029 }
01030 }
01031
01041 static void DrawBridgeTramBits(int x, int y, int z, int offset, bool overlay, bool head)
01042 {
01043 static const SpriteID tram_offsets[2][6] = { { 107, 108, 109, 110, 111, 112 }, { 4, 5, 15, 16, 17, 18 } };
01044 static const SpriteID back_offsets[6] = { 95, 96, 99, 102, 100, 101 };
01045 static const SpriteID front_offsets[6] = { 97, 98, 103, 106, 104, 105 };
01046
01047 static const uint size_x[6] = { 1, 16, 16, 1, 16, 1 };
01048 static const uint size_y[6] = { 16, 1, 1, 16, 1, 16 };
01049 static const uint front_bb_offset_x[6] = { 15, 0, 0, 15, 0, 15 };
01050 static const uint front_bb_offset_y[6] = { 0, 15, 15, 0, 15, 0 };
01051
01052
01053
01054 if (head || !IsInvisibilitySet(TO_BRIDGES)) {
01055 AddSortableSpriteToDraw(SPR_TRAMWAY_BASE + tram_offsets[overlay][offset], PAL_NONE,
01056 x, y, size_x[offset], size_y[offset], 0x28, z,
01057 !head && IsTransparencySet(TO_BRIDGES));
01058 }
01059
01060
01061 if (!IsInvisibilitySet(TO_CATENARY)) {
01062 AddSortableSpriteToDraw(SPR_TRAMWAY_BASE + back_offsets[offset], PAL_NONE,
01063 x, y, size_x[offset], size_y[offset], 0x28, z,
01064 IsTransparencySet(TO_CATENARY));
01065 }
01066
01067
01068 EndSpriteCombine();
01069 StartSpriteCombine();
01070
01071
01072 if (!IsInvisibilitySet(TO_CATENARY)) {
01073 AddSortableSpriteToDraw(SPR_TRAMWAY_BASE + front_offsets[offset], PAL_NONE,
01074 x, y, size_x[offset] + front_bb_offset_x[offset], size_y[offset] + front_bb_offset_y[offset], 0x28, z,
01075 IsTransparencySet(TO_CATENARY), front_bb_offset_x[offset], front_bb_offset_y[offset]);
01076 }
01077 }
01078
01092 static void DrawTile_TunnelBridge(TileInfo *ti)
01093 {
01094 TransportType transport_type = GetTunnelBridgeTransportType(ti->tile);
01095 DiagDirection tunnelbridge_direction = GetTunnelBridgeDirection(ti->tile);
01096
01097 if (IsTunnel(ti->tile)) {
01098
01099
01100
01101
01102
01103
01104
01105
01106
01107 static const int _tunnel_BB[4][12] = {
01108
01109
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 { 1, 0, -15, -14, 0, 15, 16, 1, 0, 1, 16, 15 },
01113 { 0, 1, -14, -15, 15, 0, 1, 16, 1, 0, 15, 16 },
01114 };
01115 const int *BB_data = _tunnel_BB[tunnelbridge_direction];
01116
01117 bool catenary = false;
01118
01119 SpriteID image;
01120 if (transport_type == TRANSPORT_RAIL) {
01121 image = GetRailTypeInfo(GetRailType(ti->tile))->base_sprites.tunnel;
01122 } else {
01123 image = SPR_TUNNEL_ENTRY_REAR_ROAD;
01124 }
01125
01126 if (HasTunnelBridgeSnowOrDesert(ti->tile)) image += 32;
01127
01128 image += tunnelbridge_direction * 2;
01129 DrawGroundSprite(image, PAL_NONE);
01130
01131 if (transport_type == TRANSPORT_ROAD) {
01132 RoadTypes rts = GetRoadTypes(ti->tile);
01133
01134 if (HasBit(rts, ROADTYPE_TRAM)) {
01135 static const SpriteID tunnel_sprites[2][4] = { { 28, 78, 79, 27 }, { 5, 76, 77, 4 } };
01136
01137 DrawGroundSprite(SPR_TRAMWAY_BASE + tunnel_sprites[rts - ROADTYPES_TRAM][tunnelbridge_direction], PAL_NONE);
01138
01139
01140 if (!IsInvisibilitySet(TO_CATENARY)) {
01141 catenary = true;
01142 StartSpriteCombine();
01143 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);
01144 }
01145 }
01146 } else {
01147 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(ti->tile));
01148 if (rti->UsesOverlay()) {
01149 SpriteID surface = GetCustomRailSprite(rti, ti->tile, RTSG_TUNNEL);
01150 if (surface != 0) DrawGroundSprite(surface + tunnelbridge_direction, PAL_NONE);
01151 }
01152
01153
01154 if (_game_mode != GM_MENU && _settings_client.gui.show_track_reservation && HasTunnelBridgeReservation(ti->tile)) {
01155 DrawGroundSprite(DiagDirToAxis(tunnelbridge_direction) == AXIS_X ? rti->base_sprites.single_x : rti->base_sprites.single_y, PALETTE_CRASH);
01156 }
01157
01158 if (HasCatenaryDrawn(GetRailType(ti->tile))) {
01159
01160 DrawCatenary(ti);
01161
01162 catenary = true;
01163 StartSpriteCombine();
01164
01165 DrawCatenaryOnTunnel(ti);
01166 }
01167 }
01168
01169 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);
01170
01171 if (catenary) EndSpriteCombine();
01172
01173
01174 AddSortableSpriteToDraw(SPR_EMPTY_BOUNDING_BOX, PAL_NONE, ti->x, ti->y, BB_data[6], BB_data[7], TILE_HEIGHT, ti->z);
01175 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);
01176
01177 DrawBridgeMiddle(ti);
01178 } else {
01179 const PalSpriteID *psid;
01180 int base_offset;
01181 bool ice = HasTunnelBridgeSnowOrDesert(ti->tile);
01182
01183 if (transport_type == TRANSPORT_RAIL) {
01184 base_offset = GetRailTypeInfo(GetRailType(ti->tile))->bridge_offset;
01185 assert(base_offset != 8);
01186 } else {
01187 base_offset = 8;
01188 }
01189
01190
01191 assert( (base_offset & 0x07) == 0x00);
01192
01193 DrawFoundation(ti, GetBridgeFoundation(ti->tileh, DiagDirToAxis(tunnelbridge_direction)));
01194
01195
01196 base_offset += (6 - tunnelbridge_direction) % 4;
01197
01198 if (ti->tileh == SLOPE_FLAT) base_offset += 4;
01199
01200
01201 if (transport_type != TRANSPORT_WATER) {
01202 psid = &GetBridgeSpriteTable(GetBridgeType(ti->tile), BRIDGE_PIECE_HEAD)[base_offset];
01203 } else {
01204 psid = _aqueduct_sprites + base_offset;
01205 }
01206
01207 if (!ice) {
01208 TileIndex next = ti->tile + TileOffsByDiagDir(tunnelbridge_direction);
01209 if (ti->tileh != SLOPE_FLAT && ti->z == 0 && HasTileWaterClass(next) && GetWaterClass(next) == WATER_CLASS_SEA) {
01210 DrawShoreTile(ti->tileh);
01211 } else {
01212 DrawClearLandTile(ti, 3);
01213 }
01214 } else {
01215 DrawGroundSprite(SPR_FLAT_SNOW_DESERT_TILE + SlopeToSpriteOffset(ti->tileh), PAL_NONE);
01216 }
01217
01218
01219
01220
01221 if (transport_type == TRANSPORT_ROAD || transport_type == TRANSPORT_RAIL) StartSpriteCombine();
01222
01223
01224
01225
01226
01227 AddSortableSpriteToDraw(psid->sprite, psid->pal, ti->x, ti->y, 16, 16, ti->tileh == SLOPE_FLAT ? 0 : 8, ti->z);
01228
01229 if (transport_type == TRANSPORT_ROAD) {
01230 RoadTypes rts = GetRoadTypes(ti->tile);
01231
01232 if (HasBit(rts, ROADTYPE_TRAM)) {
01233 uint offset = tunnelbridge_direction;
01234 int z = ti->z;
01235 if (ti->tileh != SLOPE_FLAT) {
01236 offset = (offset + 1) & 1;
01237 z += TILE_HEIGHT;
01238 } else {
01239 offset += 2;
01240 }
01241
01242 DrawBridgeTramBits(ti->x, ti->y, z, offset, HasBit(rts, ROADTYPE_ROAD), true);
01243 }
01244 EndSpriteCombine();
01245 } else if (transport_type == TRANSPORT_RAIL) {
01246 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(ti->tile));
01247 if (rti->UsesOverlay()) {
01248 SpriteID surface = GetCustomRailSprite(rti, ti->tile, RTSG_BRIDGE);
01249 if (surface != 0) {
01250 if (HasBridgeFlatRamp(ti->tileh, DiagDirToAxis(tunnelbridge_direction))) {
01251 AddSortableSpriteToDraw(surface + ((DiagDirToAxis(tunnelbridge_direction) == AXIS_X) ? RTBO_X : RTBO_Y), PAL_NONE, ti->x, ti->y, 16, 16, 0, ti->z + 8);
01252 } else {
01253 AddSortableSpriteToDraw(surface + RTBO_SLOPE + tunnelbridge_direction, PAL_NONE, ti->x, ti->y, 16, 16, 8, ti->z);
01254 }
01255 }
01256
01257
01258
01259 }
01260
01261
01262 if (_game_mode != GM_MENU &&_settings_client.gui.show_track_reservation && HasTunnelBridgeReservation(ti->tile)) {
01263 if (HasBridgeFlatRamp(ti->tileh, DiagDirToAxis(tunnelbridge_direction))) {
01264 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);
01265 } else {
01266 AddSortableSpriteToDraw(rti->base_sprites.single_sloped + tunnelbridge_direction, PALETTE_CRASH, ti->x, ti->y, 16, 16, 8, ti->z);
01267 }
01268 }
01269
01270 EndSpriteCombine();
01271 if (HasCatenaryDrawn(GetRailType(ti->tile))) {
01272 DrawCatenary(ti);
01273 }
01274 }
01275
01276 DrawBridgeMiddle(ti);
01277 }
01278 }
01279
01280
01299 static BridgePieces CalcBridgePiece(uint north, uint south)
01300 {
01301 if (north == 1) {
01302 return BRIDGE_PIECE_NORTH;
01303 } else if (south == 1) {
01304 return BRIDGE_PIECE_SOUTH;
01305 } else if (north < south) {
01306 return north & 1 ? BRIDGE_PIECE_INNER_SOUTH : BRIDGE_PIECE_INNER_NORTH;
01307 } else if (north > south) {
01308 return south & 1 ? BRIDGE_PIECE_INNER_NORTH : BRIDGE_PIECE_INNER_SOUTH;
01309 } else {
01310 return north & 1 ? BRIDGE_PIECE_MIDDLE_EVEN : BRIDGE_PIECE_MIDDLE_ODD;
01311 }
01312 }
01313
01318 void DrawBridgeMiddle(const TileInfo *ti)
01319 {
01320
01321
01322
01323
01324
01325
01326
01327
01328
01329
01330
01331
01332
01333
01334
01335
01336 if (!IsBridgeAbove(ti->tile)) return;
01337
01338 TileIndex rampnorth = GetNorthernBridgeEnd(ti->tile);
01339 TileIndex rampsouth = GetSouthernBridgeEnd(ti->tile);
01340 TransportType transport_type = GetTunnelBridgeTransportType(rampsouth);
01341
01342 Axis axis = GetBridgeAxis(ti->tile);
01343 BridgePieces piece = CalcBridgePiece(
01344 GetTunnelBridgeLength(ti->tile, rampnorth) + 1,
01345 GetTunnelBridgeLength(ti->tile, rampsouth) + 1
01346 );
01347
01348 const PalSpriteID *psid;
01349 bool drawfarpillar;
01350 if (transport_type != TRANSPORT_WATER) {
01351 BridgeType type = GetBridgeType(rampsouth);
01352 drawfarpillar = !HasBit(GetBridgeSpec(type)->flags, 0);
01353
01354 uint base_offset;
01355 if (transport_type == TRANSPORT_RAIL) {
01356 base_offset = GetRailTypeInfo(GetRailType(rampsouth))->bridge_offset;
01357 } else {
01358 base_offset = 8;
01359 }
01360
01361 psid = base_offset + GetBridgeSpriteTable(type, piece);
01362 } else {
01363 drawfarpillar = true;
01364 psid = _aqueduct_sprites;
01365 }
01366
01367 if (axis != AXIS_X) psid += 4;
01368
01369 int x = ti->x;
01370 int y = ti->y;
01371 uint bridge_z = GetBridgePixelHeight(rampsouth);
01372 int z = bridge_z - BRIDGE_Z_START;
01373
01374
01375 AddSortableSpriteToDraw(SPR_EMPTY_BOUNDING_BOX, PAL_NONE, x, y, 16, 16, 1, bridge_z - TILE_HEIGHT + BB_Z_SEPARATOR);
01376
01377
01378 if (transport_type == TRANSPORT_ROAD || transport_type == TRANSPORT_RAIL) StartSpriteCombine();
01379
01380
01381 if (!IsInvisibilitySet(TO_BRIDGES)) {
01382 if (axis == AXIS_X) {
01383 AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 16, 1, 0x28, z, IsTransparencySet(TO_BRIDGES), 0, 0, BRIDGE_Z_START);
01384 } else {
01385 AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 1, 16, 0x28, z, IsTransparencySet(TO_BRIDGES), 0, 0, BRIDGE_Z_START);
01386 }
01387 }
01388
01389 psid++;
01390
01391 if (transport_type == TRANSPORT_ROAD) {
01392 RoadTypes rts = GetRoadTypes(rampsouth);
01393
01394 if (HasBit(rts, ROADTYPE_TRAM)) {
01395
01396 DrawBridgeTramBits(x, y, bridge_z, axis ^ 1, HasBit(rts, ROADTYPE_ROAD), false);
01397 } else {
01398 EndSpriteCombine();
01399 StartSpriteCombine();
01400 }
01401 } else if (transport_type == TRANSPORT_RAIL) {
01402 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(rampsouth));
01403 if (rti->UsesOverlay()) {
01404 SpriteID surface = GetCustomRailSprite(rti, rampsouth, RTSG_BRIDGE, TCX_ON_BRIDGE);
01405 if (surface != 0) {
01406 AddSortableSpriteToDraw(surface + axis, PAL_NONE, x, y, 16, 16, 0, bridge_z, IsTransparencySet(TO_BRIDGES));
01407 }
01408 }
01409 EndSpriteCombine();
01410
01411 if (HasCatenaryDrawn(GetRailType(rampsouth))) {
01412 DrawCatenaryOnBridge(ti);
01413 }
01414 }
01415
01416
01417 if (!IsInvisibilitySet(TO_BRIDGES)) {
01418 if (axis == AXIS_X) {
01419 y += 12;
01420 if (psid->sprite & SPRITE_MASK) AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 16, 4, 0x28, z, IsTransparencySet(TO_BRIDGES), 0, 3, BRIDGE_Z_START);
01421 } else {
01422 x += 12;
01423 if (psid->sprite & SPRITE_MASK) AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 4, 16, 0x28, z, IsTransparencySet(TO_BRIDGES), 3, 0, BRIDGE_Z_START);
01424 }
01425 }
01426
01427
01428 if (transport_type == TRANSPORT_ROAD) EndSpriteCombine();
01429
01430
01431 if (IsInvisibilitySet(TO_BRIDGES)) return;
01432
01433 psid++;
01434 if (ti->z + 5 == z) {
01435
01436 if (psid->sprite != 0) {
01437 SpriteID image = psid->sprite;
01438 SpriteID pal = psid->pal;
01439 if (IsTransparencySet(TO_BRIDGES)) {
01440 SetBit(image, PALETTE_MODIFIER_TRANSPARENT);
01441 pal = PALETTE_TO_TRANSPARENT;
01442 }
01443
01444 DrawGroundSpriteAt(image, pal, x - ti->x, y - ti->y, z - ti->z);
01445 }
01446 } else {
01447
01448 DrawBridgePillars(psid, ti, axis, drawfarpillar, x, y, z);
01449 }
01450 }
01451
01452
01453 static int GetSlopePixelZ_TunnelBridge(TileIndex tile, uint x, uint y)
01454 {
01455 int z;
01456 Slope tileh = GetTilePixelSlope(tile, &z);
01457
01458 x &= 0xF;
01459 y &= 0xF;
01460
01461 if (IsTunnel(tile)) {
01462 uint pos = (DiagDirToAxis(GetTunnelBridgeDirection(tile)) == AXIS_X ? y : x);
01463
01464
01465 if (5 <= pos && pos <= 10) return z;
01466 } else {
01467 DiagDirection dir = GetTunnelBridgeDirection(tile);
01468 uint pos = (DiagDirToAxis(dir) == AXIS_X ? y : x);
01469
01470 z += ApplyPixelFoundationToSlope(GetBridgeFoundation(tileh, DiagDirToAxis(dir)), &tileh);
01471
01472
01473 if (5 <= pos && pos <= 10) {
01474 int delta;
01475
01476 if (tileh != SLOPE_FLAT) return z + TILE_HEIGHT;
01477
01478 switch (dir) {
01479 default: NOT_REACHED();
01480 case DIAGDIR_NE: delta = (TILE_SIZE - 1 - x) / 2; break;
01481 case DIAGDIR_SE: delta = y / 2; break;
01482 case DIAGDIR_SW: delta = x / 2; break;
01483 case DIAGDIR_NW: delta = (TILE_SIZE - 1 - y) / 2; break;
01484 }
01485 return z + 1 + delta;
01486 }
01487 }
01488
01489 return z + GetPartialPixelZ(x, y, tileh);
01490 }
01491
01492 static Foundation GetFoundation_TunnelBridge(TileIndex tile, Slope tileh)
01493 {
01494 return IsTunnel(tile) ? FOUNDATION_NONE : GetBridgeFoundation(tileh, DiagDirToAxis(GetTunnelBridgeDirection(tile)));
01495 }
01496
01497 static void GetTileDesc_TunnelBridge(TileIndex tile, TileDesc *td)
01498 {
01499 TransportType tt = GetTunnelBridgeTransportType(tile);
01500
01501 if (IsTunnel(tile)) {
01502 td->str = (tt == TRANSPORT_RAIL) ? STR_LAI_TUNNEL_DESCRIPTION_RAILROAD : STR_LAI_TUNNEL_DESCRIPTION_ROAD;
01503 } else {
01504 td->str = (tt == TRANSPORT_WATER) ? STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT : GetBridgeSpec(GetBridgeType(tile))->transport_name[tt];
01505 }
01506 td->owner[0] = GetTileOwner(tile);
01507
01508 Owner road_owner = INVALID_OWNER;
01509 Owner tram_owner = INVALID_OWNER;
01510 RoadTypes rts = GetRoadTypes(tile);
01511 if (HasBit(rts, ROADTYPE_ROAD)) road_owner = GetRoadOwner(tile, ROADTYPE_ROAD);
01512 if (HasBit(rts, ROADTYPE_TRAM)) tram_owner = GetRoadOwner(tile, ROADTYPE_TRAM);
01513
01514
01515 if ((tram_owner != INVALID_OWNER && tram_owner != td->owner[0]) ||
01516 (road_owner != INVALID_OWNER && road_owner != td->owner[0])) {
01517 uint i = 1;
01518 if (road_owner != INVALID_OWNER) {
01519 td->owner_type[i] = STR_LAND_AREA_INFORMATION_ROAD_OWNER;
01520 td->owner[i] = road_owner;
01521 i++;
01522 }
01523 if (tram_owner != INVALID_OWNER) {
01524 td->owner_type[i] = STR_LAND_AREA_INFORMATION_TRAM_OWNER;
01525 td->owner[i] = tram_owner;
01526 }
01527 }
01528
01529 if (tt == TRANSPORT_RAIL) {
01530 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(tile));
01531 td->rail_speed = rti->max_speed;
01532
01533 if (!IsTunnel(tile)) {
01534 uint16 spd = GetBridgeSpec(GetBridgeType(tile))->speed;
01535 if (td->rail_speed == 0 || spd < td->rail_speed) {
01536 td->rail_speed = spd;
01537 }
01538 }
01539 }
01540 }
01541
01542
01543 static void TileLoop_TunnelBridge(TileIndex tile)
01544 {
01545 bool snow_or_desert = HasTunnelBridgeSnowOrDesert(tile);
01546 switch (_settings_game.game_creation.landscape) {
01547 case LT_ARCTIC: {
01548
01549
01550
01551 int z = IsBridge(tile) ? GetTileMaxZ(tile) : GetTileZ(tile);
01552 if (snow_or_desert != (z > GetSnowLine())) {
01553 SetTunnelBridgeSnowOrDesert(tile, !snow_or_desert);
01554 MarkTileDirtyByTile(tile);
01555 }
01556 break;
01557 }
01558
01559 case LT_TROPIC:
01560 if (GetTropicZone(tile) == TROPICZONE_DESERT && !snow_or_desert) {
01561 SetTunnelBridgeSnowOrDesert(tile, true);
01562 MarkTileDirtyByTile(tile);
01563 }
01564 break;
01565
01566 default:
01567 break;
01568 }
01569 }
01570
01571 static TrackStatus GetTileTrackStatus_TunnelBridge(TileIndex tile, TransportType mode, uint sub_mode, DiagDirection side)
01572 {
01573 TransportType transport_type = GetTunnelBridgeTransportType(tile);
01574 if (transport_type != mode || (transport_type == TRANSPORT_ROAD && (GetRoadTypes(tile) & sub_mode) == 0)) return 0;
01575
01576 DiagDirection dir = GetTunnelBridgeDirection(tile);
01577 if (side != INVALID_DIAGDIR && side != ReverseDiagDir(dir)) return 0;
01578 return CombineTrackStatus(TrackBitsToTrackdirBits(DiagDirToDiagTrackBits(dir)), TRACKDIR_BIT_NONE);
01579 }
01580
01581 static void ChangeTileOwner_TunnelBridge(TileIndex tile, Owner old_owner, Owner new_owner)
01582 {
01583 TileIndex other_end = GetOtherTunnelBridgeEnd(tile);
01584
01585
01586 uint num_pieces = tile < other_end ? (GetTunnelBridgeLength(tile, other_end) + 2) * TUNNELBRIDGE_TRACKBIT_FACTOR : 0;
01587
01588 for (RoadType rt = ROADTYPE_ROAD; rt < ROADTYPE_END; rt++) {
01589
01590 if (GetRoadOwner(tile, rt) == old_owner) {
01591 if (HasBit(GetRoadTypes(tile), rt)) {
01592
01593
01594 Company::Get(old_owner)->infrastructure.road[rt] -= num_pieces * 2;
01595 if (new_owner != INVALID_OWNER) Company::Get(new_owner)->infrastructure.road[rt] += num_pieces * 2;
01596 }
01597
01598 SetRoadOwner(tile, rt, new_owner == INVALID_OWNER ? OWNER_NONE : new_owner);
01599 }
01600 }
01601
01602 if (!IsTileOwner(tile, old_owner)) return;
01603
01604
01605
01606 TransportType tt = GetTunnelBridgeTransportType(tile);
01607 Company *old = Company::Get(old_owner);
01608 if (tt == TRANSPORT_RAIL) {
01609 old->infrastructure.rail[GetRailType(tile)] -= num_pieces;
01610 if (new_owner != INVALID_OWNER) Company::Get(new_owner)->infrastructure.rail[GetRailType(tile)] += num_pieces;
01611 } else if (tt == TRANSPORT_WATER) {
01612 old->infrastructure.water -= num_pieces;
01613 if (new_owner != INVALID_OWNER) Company::Get(new_owner)->infrastructure.water += num_pieces;
01614 }
01615
01616 if (new_owner != INVALID_OWNER) {
01617 SetTileOwner(tile, new_owner);
01618 } else {
01619 if (tt == TRANSPORT_RAIL) {
01620
01621
01622 CommandCost ret = DoCommand(tile, 0, 0, DC_EXEC | DC_BANKRUPT, CMD_LANDSCAPE_CLEAR);
01623 assert(ret.Succeeded());
01624 } else {
01625
01626 SetTileOwner(tile, OWNER_NONE);
01627 }
01628 }
01629 }
01630
01636 static const byte TUNNEL_SOUND_FRAME = 1;
01637
01646 extern const byte _tunnel_visibility_frame[DIAGDIR_END] = {12, 8, 8, 12};
01647
01648 static VehicleEnterTileStatus VehicleEnter_TunnelBridge(Vehicle *v, TileIndex tile, int x, int y)
01649 {
01650 int z = GetSlopePixelZ(x, y) - v->z_pos;
01651
01652 if (abs(z) > 2) return VETSB_CANNOT_ENTER;
01653
01654 const DiagDirection dir = GetTunnelBridgeDirection(tile);
01655
01656 const DiagDirection vdir = DirToDiagDir(v->direction);
01657
01658 byte pos = (DiagDirToAxis(vdir) == AXIS_X ? x : y) & TILE_UNIT_MASK;
01659
01660 byte frame = (vdir == DIAGDIR_NE || vdir == DIAGDIR_NW) ? TILE_SIZE - 1 - pos : pos;
01661
01662 if (IsTunnel(tile)) {
01663 if (v->type == VEH_TRAIN) {
01664 Train *t = Train::From(v);
01665
01666 if (t->track != TRACK_BIT_WORMHOLE && dir == vdir) {
01667 if (t->IsFrontEngine() && frame == TUNNEL_SOUND_FRAME) {
01668 if (!PlayVehicleSound(t, VSE_TUNNEL) && RailVehInfo(t->engine_type)->engclass == 0) {
01669 SndPlayVehicleFx(SND_05_TRAIN_THROUGH_TUNNEL, v);
01670 }
01671 return VETSB_CONTINUE;
01672 }
01673 if (frame == _tunnel_visibility_frame[dir]) {
01674 t->tile = tile;
01675 t->track = TRACK_BIT_WORMHOLE;
01676 t->vehstatus |= VS_HIDDEN;
01677 return VETSB_ENTERED_WORMHOLE;
01678 }
01679 }
01680
01681 if (dir == ReverseDiagDir(vdir) && frame == TILE_SIZE - _tunnel_visibility_frame[dir] && z == 0) {
01682
01683 t->tile = tile;
01684 t->track = DiagDirToDiagTrackBits(vdir);
01685 assert(t->track);
01686 t->vehstatus &= ~VS_HIDDEN;
01687 return VETSB_ENTERED_WORMHOLE;
01688 }
01689 } else if (v->type == VEH_ROAD) {
01690 RoadVehicle *rv = RoadVehicle::From(v);
01691
01692
01693 if (rv->state != RVSB_WORMHOLE && dir == vdir) {
01694 if (frame == _tunnel_visibility_frame[dir]) {
01695
01696 assert(frame == rv->frame + 1);
01697 rv->tile = tile;
01698 rv->state = RVSB_WORMHOLE;
01699 rv->vehstatus |= VS_HIDDEN;
01700 return VETSB_ENTERED_WORMHOLE;
01701 } else {
01702 return VETSB_CONTINUE;
01703 }
01704 }
01705
01706
01707 if (dir == ReverseDiagDir(vdir) && frame == TILE_SIZE - _tunnel_visibility_frame[dir] && z == 0) {
01708 rv->tile = tile;
01709 rv->state = DiagDirToDiagTrackdir(vdir);
01710 rv->frame = frame;
01711 rv->vehstatus &= ~VS_HIDDEN;
01712 return VETSB_ENTERED_WORMHOLE;
01713 }
01714 }
01715 } else {
01716 if (v->type != VEH_SHIP) {
01717
01718 uint16 spd = GetBridgeSpec(GetBridgeType(tile))->speed;
01719
01720 if (v->type == VEH_ROAD) spd *= 2;
01721 Vehicle *first = v->First();
01722 first->cur_speed = min(first->cur_speed, spd);
01723 }
01724
01725 if (vdir == dir) {
01726
01727 if (frame != TILE_SIZE - 1) return VETSB_CONTINUE;
01728 switch (v->type) {
01729 case VEH_TRAIN: {
01730 Train *t = Train::From(v);
01731 t->track = TRACK_BIT_WORMHOLE;
01732 ClrBit(t->gv_flags, GVF_GOINGUP_BIT);
01733 ClrBit(t->gv_flags, GVF_GOINGDOWN_BIT);
01734 break;
01735 }
01736
01737 case VEH_ROAD: {
01738 RoadVehicle *rv = RoadVehicle::From(v);
01739 rv->state = RVSB_WORMHOLE;
01740
01741 ClrBit(rv->gv_flags, GVF_GOINGUP_BIT);
01742 ClrBit(rv->gv_flags, GVF_GOINGDOWN_BIT);
01743 break;
01744 }
01745
01746 case VEH_SHIP:
01747 Ship::From(v)->state = TRACK_BIT_WORMHOLE;
01748 break;
01749
01750 default: NOT_REACHED();
01751 }
01752 return VETSB_ENTERED_WORMHOLE;
01753 } else if (vdir == ReverseDiagDir(dir)) {
01754 v->tile = tile;
01755 switch (v->type) {
01756 case VEH_TRAIN: {
01757 Train *t = Train::From(v);
01758 if (t->track == TRACK_BIT_WORMHOLE) {
01759 t->track = DiagDirToDiagTrackBits(vdir);
01760 return VETSB_ENTERED_WORMHOLE;
01761 }
01762 break;
01763 }
01764
01765 case VEH_ROAD: {
01766 RoadVehicle *rv = RoadVehicle::From(v);
01767 if (rv->state == RVSB_WORMHOLE) {
01768 rv->state = DiagDirToDiagTrackdir(vdir);
01769 rv->frame = 0;
01770 return VETSB_ENTERED_WORMHOLE;
01771 }
01772 break;
01773 }
01774
01775 case VEH_SHIP: {
01776 Ship *ship = Ship::From(v);
01777 if (ship->state == TRACK_BIT_WORMHOLE) {
01778 ship->state = DiagDirToDiagTrackBits(vdir);
01779 return VETSB_ENTERED_WORMHOLE;
01780 }
01781 break;
01782 }
01783
01784 default: NOT_REACHED();
01785 }
01786 }
01787 }
01788 return VETSB_CONTINUE;
01789 }
01790
01791 static CommandCost TerraformTile_TunnelBridge(TileIndex tile, DoCommandFlag flags, int z_new, Slope tileh_new)
01792 {
01793 if (_settings_game.construction.build_on_slopes && AutoslopeEnabled() && IsBridge(tile) && GetTunnelBridgeTransportType(tile) != TRANSPORT_WATER) {
01794 DiagDirection direction = GetTunnelBridgeDirection(tile);
01795 Axis axis = DiagDirToAxis(direction);
01796 CommandCost res;
01797 int z_old;
01798 Slope tileh_old = GetTileSlope(tile, &z_old);
01799
01800
01801 if ((direction == DIAGDIR_NW) || (direction == DIAGDIR_NE)) {
01802 CheckBridgeSlopeSouth(axis, &tileh_old, &z_old);
01803 res = CheckBridgeSlopeSouth(axis, &tileh_new, &z_new);
01804 } else {
01805 CheckBridgeSlopeNorth(axis, &tileh_old, &z_old);
01806 res = CheckBridgeSlopeNorth(axis, &tileh_new, &z_new);
01807 }
01808
01809
01810 if (res.Succeeded() && (z_old == z_new) && (tileh_old == tileh_new)) return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
01811 }
01812
01813 return DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
01814 }
01815
01816 extern const TileTypeProcs _tile_type_tunnelbridge_procs = {
01817 DrawTile_TunnelBridge,
01818 GetSlopePixelZ_TunnelBridge,
01819 ClearTile_TunnelBridge,
01820 NULL,
01821 GetTileDesc_TunnelBridge,
01822 GetTileTrackStatus_TunnelBridge,
01823 NULL,
01824 NULL,
01825 TileLoop_TunnelBridge,
01826 ChangeTileOwner_TunnelBridge,
01827 NULL,
01828 VehicleEnter_TunnelBridge,
01829 GetFoundation_TunnelBridge,
01830 TerraformTile_TunnelBridge,
01831 };