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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 "station_map.h"
00027 #include "pathfinder/yapf/yapf_cache.h"
00028 #include "newgrf_sound.h"
00029 #include "autoslope.h"
00030 #include "tunnelbridge_map.h"
00031 #include "strings_func.h"
00032 #include "date_func.h"
00033 #include "clear_func.h"
00034 #include "vehicle_func.h"
00035 #include "vehicle_gui.h"
00036 #include "sound_func.h"
00037 #include "tunnelbridge.h"
00038 #include "cheat_type.h"
00039 #include "elrail_func.h"
00040 #include "pbs.h"
00041 #include "company_base.h"
00042 #include "newgrf_railtype.h"
00043 #include "object_base.h"
00044 #include "water.h"
00045
00046 #include "table/sprites.h"
00047 #include "table/strings.h"
00048 #include "table/bridge_land.h"
00049
00050 BridgeSpec _bridge[MAX_BRIDGES];
00051 TileIndex _build_tunnel_endtile;
00052
00054 static const int BRIDGE_Z_START = 3;
00055
00057 void ResetBridges()
00058 {
00059
00060 for (BridgeType i = 0; i < MAX_BRIDGES; i++) {
00061 if (_bridge[i].sprite_table != NULL) {
00062 for (BridgePieces j = BRIDGE_PIECE_NORTH; j < BRIDGE_PIECE_INVALID; j++) free(_bridge[i].sprite_table[j]);
00063 free(_bridge[i].sprite_table);
00064 }
00065 }
00066
00067
00068 memset(&_bridge, 0, sizeof(_bridge));
00069
00070 memcpy(&_bridge, &_orig_bridge, sizeof(_orig_bridge));
00071 }
00072
00079 int CalcBridgeLenCostFactor(int length)
00080 {
00081 if (length < 2) return length;
00082
00083 length -= 2;
00084 int sum = 2;
00085 for (int delta = 1;; delta++) {
00086 for (int count = 0; count < delta; count++) {
00087 if (length == 0) return sum;
00088 sum += delta;
00089 length--;
00090 }
00091 }
00092 }
00093
00100 Foundation GetBridgeFoundation(Slope tileh, Axis axis)
00101 {
00102 if (tileh == SLOPE_FLAT ||
00103 ((tileh == SLOPE_NE || tileh == SLOPE_SW) && axis == AXIS_X) ||
00104 ((tileh == SLOPE_NW || tileh == SLOPE_SE) && axis == AXIS_Y)) return FOUNDATION_NONE;
00105
00106 return (HasSlopeHighestCorner(tileh) ? InclinedFoundation(axis) : FlatteningFoundation(tileh));
00107 }
00108
00112 BridgeType GetFastestAvailableBridgeType(uint bridge_len)
00113 {
00114 BridgeType fastest_type = 0;
00115 uint16 fastest_speed = 0;
00116
00117 for (BridgeType brd_type = 0; brd_type != MAX_BRIDGES; brd_type++) {
00118 CommandCost ret = CheckBridgeAvailability(brd_type, bridge_len, DC_NONE);
00119 if (!ret.Failed()) {
00120
00121 const BridgeSpec *b = GetBridgeSpec(brd_type);
00122 if (b->speed >= fastest_speed) {
00123 fastest_type = brd_type;
00124 fastest_speed = b->speed;
00125 }
00126 }
00127 }
00128
00129 return fastest_type;
00130 }
00131
00139 bool HasBridgeFlatRamp(Slope tileh, Axis axis)
00140 {
00141 ApplyFoundationToSlope(GetBridgeFoundation(tileh, axis), &tileh);
00142
00143 return (tileh != SLOPE_FLAT);
00144 }
00145
00146 static inline const PalSpriteID *GetBridgeSpriteTable(int index, BridgePieces table)
00147 {
00148 const BridgeSpec *bridge = GetBridgeSpec(index);
00149 assert(table < BRIDGE_PIECE_INVALID);
00150 if (bridge->sprite_table == NULL || bridge->sprite_table[table] == NULL) {
00151 return _bridge_sprite_table[index][table];
00152 } else {
00153 return bridge->sprite_table[table];
00154 }
00155 }
00156
00157
00166 static CommandCost CheckBridgeSlopeNorth(Axis axis, Slope *tileh, uint *z)
00167 {
00168 Foundation f = GetBridgeFoundation(*tileh, axis);
00169 *z += ApplyFoundationToSlope(f, tileh);
00170
00171 Slope valid_inclined = (axis == AXIS_X ? SLOPE_NE : SLOPE_NW);
00172 if ((*tileh != SLOPE_FLAT) && (*tileh != valid_inclined)) return CMD_ERROR;
00173
00174 if (f == FOUNDATION_NONE) return CommandCost();
00175
00176 return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
00177 }
00178
00187 static CommandCost CheckBridgeSlopeSouth(Axis axis, Slope *tileh, uint *z)
00188 {
00189 Foundation f = GetBridgeFoundation(*tileh, axis);
00190 *z += ApplyFoundationToSlope(f, tileh);
00191
00192 Slope valid_inclined = (axis == AXIS_X ? SLOPE_SW : SLOPE_SE);
00193 if ((*tileh != SLOPE_FLAT) && (*tileh != valid_inclined)) return CMD_ERROR;
00194
00195 if (f == FOUNDATION_NONE) return CommandCost();
00196
00197 return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
00198 }
00199
00206 CommandCost CheckBridgeAvailability(BridgeType bridge_type, uint bridge_len, DoCommandFlag flags)
00207 {
00208 if (flags & DC_QUERY_COST) {
00209 if (bridge_len <= _settings_game.construction.max_bridge_length) return CommandCost();
00210 return_cmd_error(STR_ERROR_BRIDGE_TOO_LONG);
00211 }
00212
00213 if (bridge_type >= MAX_BRIDGES) return CMD_ERROR;
00214
00215 const BridgeSpec *b = GetBridgeSpec(bridge_type);
00216 if (b->avail_year > _cur_year) return CMD_ERROR;
00217
00218 uint max = min(b->max_length, _settings_game.construction.max_bridge_length);
00219
00220 if (b->min_length > bridge_len) return CMD_ERROR;
00221 if (bridge_len <= max) return CommandCost();
00222 return_cmd_error(STR_ERROR_BRIDGE_TOO_LONG);
00223 }
00224
00237 CommandCost CmdBuildBridge(TileIndex end_tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00238 {
00239 RailType railtype = INVALID_RAILTYPE;
00240 RoadTypes roadtypes = ROADTYPES_NONE;
00241
00242
00243 BridgeType bridge_type = GB(p2, 0, 8);
00244
00245 if (!IsValidTile(p1)) return_cmd_error(STR_ERROR_BRIDGE_THROUGH_MAP_BORDER);
00246
00247 TransportType transport_type = Extract<TransportType, 15, 2>(p2);
00248
00249
00250 switch (transport_type) {
00251 case TRANSPORT_ROAD:
00252 roadtypes = Extract<RoadTypes, 8, 2>(p2);
00253 if (!HasExactlyOneBit(roadtypes) || !HasRoadTypesAvail(_current_company, roadtypes)) return CMD_ERROR;
00254 break;
00255
00256 case TRANSPORT_RAIL:
00257 railtype = Extract<RailType, 8, 4>(p2);
00258 if (!ValParamRailtype(railtype)) return CMD_ERROR;
00259 break;
00260
00261 case TRANSPORT_WATER:
00262 break;
00263
00264 default:
00265
00266 return CMD_ERROR;
00267 }
00268 TileIndex tile_start = p1;
00269 TileIndex tile_end = end_tile;
00270
00271 if (tile_start == tile_end) {
00272 return_cmd_error(STR_ERROR_CAN_T_START_AND_END_ON);
00273 }
00274
00275 Axis direction;
00276 if (TileX(tile_start) == TileX(tile_end)) {
00277 direction = AXIS_Y;
00278 } else if (TileY(tile_start) == TileY(tile_end)) {
00279 direction = AXIS_X;
00280 } else {
00281 return_cmd_error(STR_ERROR_START_AND_END_MUST_BE_IN);
00282 }
00283
00284 if (tile_end < tile_start) Swap(tile_start, tile_end);
00285
00286 uint bridge_len = GetTunnelBridgeLength(tile_start, tile_end);
00287 if (transport_type != TRANSPORT_WATER) {
00288
00289 CommandCost ret = CheckBridgeAvailability(bridge_type, bridge_len, flags);
00290 if (ret.Failed()) return ret;
00291 } else {
00292 if (bridge_len > _settings_game.construction.max_bridge_length) return_cmd_error(STR_ERROR_BRIDGE_TOO_LONG);
00293 }
00294
00295 uint z_start;
00296 uint z_end;
00297 Slope tileh_start = GetTileSlope(tile_start, &z_start);
00298 Slope tileh_end = GetTileSlope(tile_end, &z_end);
00299 bool pbs_reservation = false;
00300
00301 CommandCost terraform_cost_north = CheckBridgeSlopeNorth(direction, &tileh_start, &z_start);
00302 CommandCost terraform_cost_south = CheckBridgeSlopeSouth(direction, &tileh_end, &z_end);
00303
00304
00305 if (transport_type == TRANSPORT_WATER && (tileh_start == SLOPE_FLAT || tileh_end == SLOPE_FLAT)) return_cmd_error(STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION);
00306 if (z_start != z_end) return_cmd_error(STR_ERROR_BRIDGEHEADS_NOT_SAME_HEIGHT);
00307
00308 CommandCost cost(EXPENSES_CONSTRUCTION);
00309 Owner owner;
00310 if (IsBridgeTile(tile_start) && IsBridgeTile(tile_end) &&
00311 GetOtherBridgeEnd(tile_start) == tile_end &&
00312 GetTunnelBridgeTransportType(tile_start) == transport_type) {
00313
00314
00315
00316 if (transport_type == TRANSPORT_RAIL && GetRailType(tile_start) != railtype) {
00317 return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00318 }
00319
00320
00321 if (!(flags & DC_QUERY_COST) && IsTileOwner(tile_start, OWNER_TOWN) &&
00322 GetBridgeSpec(bridge_type)->speed < GetBridgeSpec(GetBridgeType(tile_start))->speed) {
00323 Town *t = ClosestTownFromTile(tile_start, UINT_MAX);
00324
00325 if (t == NULL) {
00326 return CMD_ERROR;
00327 } else {
00328 SetDParam(0, t->index);
00329 return_cmd_error(STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS);
00330 }
00331 }
00332
00333
00334 if (!(flags & DC_QUERY_COST) && bridge_type == GetBridgeType(tile_start)) {
00335 return_cmd_error(STR_ERROR_ALREADY_BUILT);
00336 }
00337
00338
00339 if (!IsTileOwner(tile_start, _current_company) && !IsTileOwner(tile_start, OWNER_TOWN)) {
00340 return_cmd_error(STR_ERROR_AREA_IS_OWNED_BY_ANOTHER);
00341 }
00342
00343 cost.AddCost((bridge_len + 1) * _price[PR_CLEAR_BRIDGE]);
00344 owner = GetTileOwner(tile_start);
00345
00346 switch (transport_type) {
00347 case TRANSPORT_RAIL:
00348
00349 pbs_reservation = HasTunnelBridgeReservation(tile_start);
00350 break;
00351
00352 case TRANSPORT_ROAD:
00353
00354 roadtypes |= GetRoadTypes(tile_start);
00355 break;
00356
00357 default: break;
00358 }
00359 } else {
00360
00361
00362 bool allow_on_slopes = (_settings_game.construction.build_on_slopes && transport_type != TRANSPORT_WATER);
00363
00364
00365 CommandCost ret = DoCommand(tile_start, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00366 if (ret.Failed()) return ret;
00367 cost = ret;
00368
00369 if (terraform_cost_north.Failed() || (terraform_cost_north.GetCost() != 0 && !allow_on_slopes)) return_cmd_error(STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION);
00370 cost.AddCost(terraform_cost_north);
00371
00372
00373 ret = DoCommand(tile_end, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00374 if (ret.Failed()) return ret;
00375 cost.AddCost(ret);
00376
00377
00378 if (terraform_cost_south.Failed() || (terraform_cost_south.GetCost() != 0 && !allow_on_slopes)) return_cmd_error(STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION);
00379 cost.AddCost(terraform_cost_south);
00380
00381 const TileIndex heads[] = {tile_start, tile_end};
00382 for (int i = 0; i < 2; i++) {
00383 if (MayHaveBridgeAbove(heads[i])) {
00384 if (IsBridgeAbove(heads[i])) {
00385 TileIndex north_head = GetNorthernBridgeEnd(heads[i]);
00386
00387 if (direction == GetBridgeAxis(heads[i])) return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00388
00389 if (z_start + TILE_HEIGHT == GetBridgeHeight(north_head)) {
00390 return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00391 }
00392 }
00393 }
00394 }
00395
00396 TileIndexDiff delta = (direction == AXIS_X ? TileDiffXY(1, 0) : TileDiffXY(0, 1));
00397 for (TileIndex tile = tile_start + delta; tile != tile_end; tile += delta) {
00398 if (GetTileMaxZ(tile) > z_start) return_cmd_error(STR_ERROR_BRIDGE_TOO_LOW_FOR_TERRAIN);
00399
00400 if (z_start + TILE_HEIGHT > (TileHeight(tile) + MAX_BRIDGE_HEIGHT) * TILE_HEIGHT) {
00401
00402
00403
00404 return_cmd_error(STR_ERROR_BRIDGE_TOO_HIGH_FOR_TERRAIN);
00405 }
00406
00407 if (MayHaveBridgeAbove(tile) && IsBridgeAbove(tile)) {
00408
00409 return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00410 }
00411
00412 switch (GetTileType(tile)) {
00413 case MP_WATER:
00414 if (!IsWater(tile) && !IsCoast(tile)) goto not_valid_below;
00415 break;
00416
00417 case MP_RAILWAY:
00418 if (!IsPlainRail(tile)) goto not_valid_below;
00419 break;
00420
00421 case MP_ROAD:
00422 if (IsRoadDepot(tile)) goto not_valid_below;
00423 break;
00424
00425 case MP_TUNNELBRIDGE:
00426 if (IsTunnel(tile)) break;
00427 if (direction == DiagDirToAxis(GetTunnelBridgeDirection(tile))) goto not_valid_below;
00428 if (z_start < GetBridgeHeight(tile)) goto not_valid_below;
00429 break;
00430
00431 case MP_OBJECT: {
00432 const ObjectSpec *spec = ObjectSpec::GetByTile(tile);
00433 if ((spec->flags & OBJECT_FLAG_ALLOW_UNDER_BRIDGE) == 0) goto not_valid_below;
00434 if (GetTileMaxZ(tile) + spec->height * TILE_HEIGHT > z_start) goto not_valid_below;
00435 break;
00436 }
00437
00438 case MP_CLEAR:
00439 break;
00440
00441 default:
00442 not_valid_below:;
00443
00444 ret = DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00445 if (ret.Failed()) return ret;
00446 cost.AddCost(ret);
00447 break;
00448 }
00449
00450 if (flags & DC_EXEC) {
00451
00452
00453
00454 SetBridgeMiddle(tile, direction);
00455 }
00456 }
00457
00458 owner = _current_company;
00459 }
00460
00461
00462 if (flags & DC_EXEC) {
00463 DiagDirection dir = AxisToDiagDir(direction);
00464
00465 switch (transport_type) {
00466 case TRANSPORT_RAIL:
00467 MakeRailBridgeRamp(tile_start, owner, bridge_type, dir, railtype);
00468 MakeRailBridgeRamp(tile_end, owner, bridge_type, ReverseDiagDir(dir), railtype);
00469 SetTunnelBridgeReservation(tile_start, pbs_reservation);
00470 SetTunnelBridgeReservation(tile_end, pbs_reservation);
00471 break;
00472
00473 case TRANSPORT_ROAD:
00474 MakeRoadBridgeRamp(tile_start, owner, bridge_type, dir, roadtypes);
00475 MakeRoadBridgeRamp(tile_end, owner, bridge_type, ReverseDiagDir(dir), roadtypes);
00476 break;
00477
00478 case TRANSPORT_WATER:
00479 MakeAqueductBridgeRamp(tile_start, owner, dir);
00480 MakeAqueductBridgeRamp(tile_end, owner, ReverseDiagDir(dir));
00481 break;
00482
00483 default:
00484 NOT_REACHED();
00485 }
00486
00487
00488 TileIndexDiff delta = (direction == AXIS_X ? TileDiffXY(1, 0) : TileDiffXY(0, 1));
00489 for (TileIndex tile = tile_start; tile <= tile_end; tile += delta) {
00490 MarkTileDirtyByTile(tile);
00491 }
00492 }
00493
00494 if ((flags & DC_EXEC) && transport_type == TRANSPORT_RAIL) {
00495 Track track = AxisToTrack(direction);
00496 AddSideToSignalBuffer(tile_start, INVALID_DIAGDIR, _current_company);
00497 YapfNotifyTrackLayoutChange(tile_start, track);
00498 }
00499
00500
00501
00502
00503
00504 Company *c = Company::GetIfValid(_current_company);
00505 if (!(flags & DC_QUERY_COST) || (c != NULL && c->is_ai)) {
00506 bridge_len += 2;
00507
00508 switch (transport_type) {
00509 case TRANSPORT_ROAD: cost.AddCost(bridge_len * _price[PR_BUILD_ROAD] * 2); break;
00510 case TRANSPORT_RAIL: cost.AddCost(bridge_len * RailBuildCost(railtype)); break;
00511 default: break;
00512 }
00513
00514 if (c != NULL) bridge_len = CalcBridgeLenCostFactor(bridge_len);
00515
00516 if (transport_type != TRANSPORT_WATER) {
00517 cost.AddCost((int64)bridge_len * _price[PR_BUILD_BRIDGE] * GetBridgeSpec(bridge_type)->price >> 8);
00518 } else {
00519
00520 cost.AddCost((int64)bridge_len * _price[PR_BUILD_AQUEDUCT]);
00521 }
00522
00523 }
00524
00525 return cost;
00526 }
00527
00537 bool IsCrossableWater(TileIndex end_tile, TileIndexDiff delta, DiagDirection direction)
00538 {
00539 bool crossed_water = false;
00540 uint end_z;
00541
00542 int end_tiles = 1;
00543 Slope end_tileh = GetTileSlope(end_tile, NULL);
00544
00545 if (end_tileh != InclinedSlope(ReverseDiagDir(direction))) return false;
00546
00547 for (;;) {
00548 end_tile += delta;
00549 if (!IsValidTile(end_tile)) break;
00550 if (crossed_water) end_tiles++;
00551 end_tileh = GetTileSlope(end_tile, &end_z);
00552 if (end_z == 0) {
00553 if (end_tileh == SLOPE_FLAT) {
00554 if (!(IsWaterTile(end_tile) || IsBuoyTile(end_tile))) break;
00555 } else {
00556 if (end_tiles > 1) {
00557 return (end_tiles > 3 && end_tiles < 7);
00558 } else if (end_tileh == InclinedSlope(direction)) {
00559 crossed_water = true;
00560 } else {
00561 break;
00562 }
00563 }
00564 }
00565 }
00566 return false;
00567 }
00568
00579 CommandCost CmdBuildTunnel(TileIndex start_tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00580 {
00581 TransportType transport_type = Extract<TransportType, 8, 2>(p1);
00582
00583 RailType railtype = INVALID_RAILTYPE;
00584 RoadTypes rts = ROADTYPES_NONE;
00585 _build_tunnel_endtile = 0;
00586 switch (transport_type) {
00587 case TRANSPORT_RAIL:
00588 railtype = Extract<RailType, 0, 4>(p1);
00589 if (!ValParamRailtype(railtype)) return CMD_ERROR;
00590 break;
00591
00592 case TRANSPORT_ROAD:
00593 rts = Extract<RoadTypes, 0, 2>(p1);
00594 if (!HasExactlyOneBit(rts) || !HasRoadTypesAvail(_current_company, rts)) return CMD_ERROR;
00595 break;
00596
00597 default: return CMD_ERROR;
00598 }
00599
00600 uint start_z;
00601 uint end_z;
00602 Slope start_tileh = GetTileSlope(start_tile, &start_z);
00603 DiagDirection direction = GetInclinedSlopeDirection(start_tileh);
00604 if (direction == INVALID_DIAGDIR) return_cmd_error(STR_ERROR_SITE_UNSUITABLE_FOR_TUNNEL);
00605
00606 if (HasTileWaterGround(start_tile)) return_cmd_error(STR_ERROR_CAN_T_BUILD_ON_WATER);
00607
00608 CommandCost ret = DoCommand(start_tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00609 if (ret.Failed()) return ret;
00610
00611
00612
00613
00614
00615
00616 TileIndexDiff delta = TileOffsByDiagDir(direction);
00617 DiagDirection tunnel_in_way_dir;
00618 if (DiagDirToAxis(direction) == AXIS_Y) {
00619 tunnel_in_way_dir = (TileX(start_tile) < (MapMaxX() / 2)) ? DIAGDIR_SW : DIAGDIR_NE;
00620 } else {
00621 tunnel_in_way_dir = (TileY(start_tile) < (MapMaxX() / 2)) ? DIAGDIR_SE : DIAGDIR_NW;
00622 }
00623
00624 TileIndex end_tile = start_tile;
00625
00626
00627 int tiles_coef = 3;
00628
00629 int tiles = 0;
00630
00631 int tiles_bump = 25;
00632
00633
00634
00635
00636
00637
00638
00639 int pass_water = 0;
00640
00641 CommandCost cost(EXPENSES_CONSTRUCTION);
00642 Slope end_tileh;
00643 for (;;) {
00644 end_tile += delta;
00645 if (!IsValidTile(end_tile)) return_cmd_error(STR_ERROR_TUNNEL_THROUGH_MAP_BORDER);
00646 end_tileh = GetTileSlope(end_tile, &end_z);
00647
00648 if (start_z == end_z) {
00649 if (start_z > 0) break;
00650
00651 if (end_tileh != SLOPE_FLAT) {
00652 if (pass_water == 2) pass_water = 3;
00653 if (pass_water == 0) {
00654
00655 (tiles > 1 && tiles < 5 && IsCrossableWater(end_tile, delta, direction)) ? pass_water = 2 : pass_water = 1;
00656 }
00657
00658 if (pass_water == 1) break;
00659 if (pass_water == 3) pass_water = 1;
00660 }
00661 }
00662
00663 if (!_cheats.crossing_tunnels.value && IsTunnelInWayDir(end_tile, start_z, tunnel_in_way_dir)) {
00664 return_cmd_error(STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY);
00665 }
00666
00667 tiles++;
00668 if (tiles == tiles_bump) {
00669 tiles_coef++;
00670 tiles_bump *= 2;
00671 }
00672
00673 cost.AddCost(_price[PR_BUILD_TUNNEL]);
00674 cost.AddCost(cost.GetCost() >> tiles_coef);
00675 }
00676
00677
00678 cost.AddCost(_price[PR_BUILD_TUNNEL]);
00679 cost.AddCost(ret);
00680
00681
00682 _build_tunnel_endtile = end_tile;
00683
00684 if (tiles > _settings_game.construction.max_tunnel_length) return_cmd_error(STR_ERROR_TUNNEL_TOO_LONG);
00685
00686 if (HasTileWaterGround(end_tile)) return_cmd_error(STR_ERROR_CAN_T_BUILD_ON_WATER);
00687
00688
00689 ret = DoCommand(end_tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00690 if (ret.Failed()) return_cmd_error(STR_ERROR_UNABLE_TO_EXCAVATE_LAND);
00691 cost.AddCost(ret);
00692
00693
00694 if (end_tileh != ComplementSlope(start_tileh)) {
00695
00696
00697 ClearedObjectArea *coa = FindClearedObject(end_tile);
00698 if (coa == NULL) {
00699 coa = _cleared_object_areas.Append();
00700 coa->first_tile = end_tile;
00701 coa->area = TileArea(end_tile, 1, 1);
00702 }
00703
00704
00705 TileIndex old_first_tile = coa->first_tile;
00706 coa->first_tile = INVALID_TILE;
00707 ret = DoCommand(end_tile, end_tileh & start_tileh, 0, flags, CMD_TERRAFORM_LAND);
00708 coa->first_tile = old_first_tile;
00709 if (ret.Failed()) return_cmd_error(STR_ERROR_UNABLE_TO_EXCAVATE_LAND);
00710 cost.AddCost(ret);
00711 }
00712 cost.AddCost(_price[PR_BUILD_TUNNEL]);
00713
00714
00715 switch (transport_type) {
00716 case TRANSPORT_ROAD: cost.AddCost((tiles + 2) * _price[PR_BUILD_ROAD] * 2); break;
00717 case TRANSPORT_RAIL: cost.AddCost((tiles + 2) * RailBuildCost(railtype)); break;
00718 default: break;
00719 }
00720
00721 if (flags & DC_EXEC) {
00722 if (transport_type == TRANSPORT_RAIL) {
00723 MakeRailTunnel(start_tile, _current_company, direction, railtype);
00724 MakeRailTunnel(end_tile, _current_company, ReverseDiagDir(direction), railtype);
00725 AddSideToSignalBuffer(start_tile, INVALID_DIAGDIR, _current_company);
00726 YapfNotifyTrackLayoutChange(start_tile, DiagDirToDiagTrack(direction));
00727 } else {
00728 MakeRoadTunnel(start_tile, _current_company, direction, rts);
00729 MakeRoadTunnel(end_tile, _current_company, ReverseDiagDir(direction), rts);
00730 }
00731 }
00732
00733 return cost;
00734 }
00735
00736
00742 static inline CommandCost CheckAllowRemoveTunnelBridge(TileIndex tile)
00743 {
00744
00745 if (_current_company == OWNER_WATER || _game_mode == GM_EDITOR) return CommandCost();
00746
00747 switch (GetTunnelBridgeTransportType(tile)) {
00748 case TRANSPORT_ROAD: {
00749 RoadTypes rts = GetRoadTypes(tile);
00750 Owner road_owner = _current_company;
00751 Owner tram_owner = _current_company;
00752
00753 if (HasBit(rts, ROADTYPE_ROAD)) road_owner = GetRoadOwner(tile, ROADTYPE_ROAD);
00754 if (HasBit(rts, ROADTYPE_TRAM)) tram_owner = GetRoadOwner(tile, ROADTYPE_TRAM);
00755
00756
00757 if (road_owner == OWNER_TOWN && !(_settings_game.construction.extra_dynamite || _cheats.magic_bulldozer.value)) {
00758 return CheckTileOwnership(tile);
00759 }
00760 if (road_owner == OWNER_NONE || road_owner == OWNER_TOWN) road_owner = _current_company;
00761 if (tram_owner == OWNER_NONE) tram_owner = _current_company;
00762
00763 CommandCost ret = CheckOwnership(road_owner, tile);
00764 if (ret.Succeeded()) ret = CheckOwnership(tram_owner, tile);
00765 return ret;
00766 }
00767
00768 case TRANSPORT_RAIL:
00769 case TRANSPORT_WATER:
00770 return CheckOwnership(GetTileOwner(tile));
00771
00772 default: NOT_REACHED();
00773 }
00774 }
00775
00782 static CommandCost DoClearTunnel(TileIndex tile, DoCommandFlag flags)
00783 {
00784 CommandCost ret = CheckAllowRemoveTunnelBridge(tile);
00785 if (ret.Failed()) return ret;
00786
00787 TileIndex endtile = GetOtherTunnelEnd(tile);
00788
00789 ret = TunnelBridgeIsFree(tile, endtile);
00790 if (ret.Failed()) return ret;
00791
00792 _build_tunnel_endtile = endtile;
00793
00794 Town *t = NULL;
00795 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00796 t = ClosestTownFromTile(tile, UINT_MAX);
00797
00798
00799
00800 CommandCost ret = CheckforTownRating(flags, t, TUNNELBRIDGE_REMOVE);
00801 if (ret.Failed()) return ret;
00802 }
00803
00804
00805
00806 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00807 ChangeTownRating(t, RATING_TUNNEL_BRIDGE_DOWN_STEP, RATING_TUNNEL_BRIDGE_MINIMUM, flags);
00808 }
00809
00810 if (flags & DC_EXEC) {
00811 if (GetTunnelBridgeTransportType(tile) == TRANSPORT_RAIL) {
00812
00813 DiagDirection dir = GetTunnelBridgeDirection(tile);
00814 Track track = DiagDirToDiagTrack(dir);
00815 Owner owner = GetTileOwner(tile);
00816
00817 Train *v = NULL;
00818 if (HasTunnelBridgeReservation(tile)) {
00819 v = GetTrainForReservation(tile, track);
00820 if (v != NULL) FreeTrainTrackReservation(v);
00821 }
00822
00823 DoClearSquare(tile);
00824 DoClearSquare(endtile);
00825
00826
00827 AddSideToSignalBuffer(tile, ReverseDiagDir(dir), owner);
00828 AddSideToSignalBuffer(endtile, dir, owner);
00829
00830 YapfNotifyTrackLayoutChange(tile, track);
00831 YapfNotifyTrackLayoutChange(endtile, track);
00832
00833 if (v != NULL) TryPathReserve(v);
00834 } else {
00835 DoClearSquare(tile);
00836 DoClearSquare(endtile);
00837 }
00838 }
00839 return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_CLEAR_TUNNEL] * (GetTunnelBridgeLength(tile, endtile) + 2));
00840 }
00841
00842
00849 static CommandCost DoClearBridge(TileIndex tile, DoCommandFlag flags)
00850 {
00851 CommandCost ret = CheckAllowRemoveTunnelBridge(tile);
00852 if (ret.Failed()) return ret;
00853
00854 TileIndex endtile = GetOtherBridgeEnd(tile);
00855
00856 ret = TunnelBridgeIsFree(tile, endtile);
00857 if (ret.Failed()) return ret;
00858
00859 DiagDirection direction = GetTunnelBridgeDirection(tile);
00860 TileIndexDiff delta = TileOffsByDiagDir(direction);
00861
00862 Town *t = NULL;
00863 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00864 t = ClosestTownFromTile(tile, UINT_MAX);
00865
00866
00867
00868 CommandCost ret = CheckforTownRating(flags, t, TUNNELBRIDGE_REMOVE);
00869 if (ret.Failed()) return ret;
00870 }
00871
00872
00873
00874 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00875 ChangeTownRating(t, RATING_TUNNEL_BRIDGE_DOWN_STEP, RATING_TUNNEL_BRIDGE_MINIMUM, flags);
00876 }
00877
00878 Money base_cost = (GetTunnelBridgeTransportType(tile) != TRANSPORT_WATER) ? _price[PR_CLEAR_BRIDGE] : _price[PR_CLEAR_AQUEDUCT];
00879
00880 if (flags & DC_EXEC) {
00881
00882 bool rail = GetTunnelBridgeTransportType(tile) == TRANSPORT_RAIL;
00883 Owner owner = GetTileOwner(tile);
00884 uint height = GetBridgeHeight(tile);
00885 Train *v = NULL;
00886
00887 if (rail && HasTunnelBridgeReservation(tile)) {
00888 v = GetTrainForReservation(tile, DiagDirToDiagTrack(direction));
00889 if (v != NULL) FreeTrainTrackReservation(v);
00890 }
00891
00892 DoClearSquare(tile);
00893 DoClearSquare(endtile);
00894 for (TileIndex c = tile + delta; c != endtile; c += delta) {
00895
00896 if (IsNormalRoadTile(c) && GetRoadside(c) == ROADSIDE_TREES) {
00897 uint minz = GetTileMaxZ(c) + 3 * TILE_HEIGHT;
00898 if (height < minz) SetRoadside(c, ROADSIDE_PAVED);
00899 }
00900 ClearBridgeMiddle(c);
00901 MarkTileDirtyByTile(c);
00902 }
00903
00904 if (rail) {
00905
00906 AddSideToSignalBuffer(tile, ReverseDiagDir(direction), owner);
00907 AddSideToSignalBuffer(endtile, direction, owner);
00908
00909 Track track = DiagDirToDiagTrack(direction);
00910 YapfNotifyTrackLayoutChange(tile, track);
00911 YapfNotifyTrackLayoutChange(endtile, track);
00912
00913 if (v != NULL) TryPathReserve(v, true);
00914 }
00915 }
00916
00917 return CommandCost(EXPENSES_CONSTRUCTION, (GetTunnelBridgeLength(tile, endtile) + 2) * base_cost);
00918 }
00919
00926 static CommandCost ClearTile_TunnelBridge(TileIndex tile, DoCommandFlag flags)
00927 {
00928 if (IsTunnel(tile)) {
00929 if (flags & DC_AUTO) return_cmd_error(STR_ERROR_MUST_DEMOLISH_TUNNEL_FIRST);
00930 return DoClearTunnel(tile, flags);
00931 } else {
00932 if (flags & DC_AUTO) return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00933 return DoClearBridge(tile, flags);
00934 }
00935 }
00936
00947 static inline void DrawPillar(const PalSpriteID *psid, int x, int y, int z, int w, int h, const SubSprite *subsprite)
00948 {
00949 static const int PILLAR_Z_OFFSET = TILE_HEIGHT - BRIDGE_Z_START;
00950 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);
00951 }
00952
00964 static int DrawPillarColumn(int z_bottom, int z_top, const PalSpriteID *psid, int x, int y, int w, int h)
00965 {
00966 int cur_z;
00967 for (cur_z = z_top; cur_z >= z_bottom; cur_z -= TILE_HEIGHT) {
00968 DrawPillar(psid, x, y, cur_z, w, h, NULL);
00969 }
00970 return cur_z;
00971 }
00972
00984 static void DrawBridgePillars(const PalSpriteID *psid, const TileInfo *ti, Axis axis, bool drawfarpillar, int x, int y, int z_bridge)
00985 {
00986 static const int bounding_box_size[2] = {16, 2};
00987 static const int back_pillar_offset[2] = { 0, 9};
00988
00989 static const int INF = 1000;
00990 static const SubSprite half_pillar_sub_sprite[2][2] = {
00991 { { -14, -INF, INF, INF }, { -INF, -INF, -15, INF } },
00992 { { -INF, -INF, 15, INF }, { 16, -INF, INF, INF } },
00993 };
00994
00995 if (psid->sprite == 0) return;
00996
00997
00998 DiagDirection south_dir = AxisToDiagDir(axis);
00999 int z_front_north = ti->z;
01000 int z_back_north = ti->z;
01001 int z_front_south = ti->z;
01002 int z_back_south = ti->z;
01003 GetSlopeZOnEdge(ti->tileh, south_dir, &z_front_south, &z_back_south);
01004 GetSlopeZOnEdge(ti->tileh, ReverseDiagDir(south_dir), &z_front_north, &z_back_north);
01005
01006
01007 int z_front = max(z_front_north, z_front_south);
01008 int z_back = max(z_back_north, z_back_south);
01009
01010
01011 int w = bounding_box_size[axis];
01012 int h = bounding_box_size[OtherAxis(axis)];
01013
01014 int x_back = x - back_pillar_offset[axis];
01015 int y_back = y - back_pillar_offset[OtherAxis(axis)];
01016
01017
01018 int bottom_z = DrawPillarColumn(z_front, z_bridge, psid, x, y, w, h);
01019 if (z_front_north < z_front) DrawPillar(psid, x, y, bottom_z, w, h, &half_pillar_sub_sprite[axis][0]);
01020 if (z_front_south < z_front) DrawPillar(psid, x, y, bottom_z, w, h, &half_pillar_sub_sprite[axis][1]);
01021
01022
01023 int z_bridge_back = z_bridge - 2 * (int)TILE_HEIGHT;
01024 if (drawfarpillar && (z_back_north <= z_bridge_back || z_back_south <= z_bridge_back)) {
01025 bottom_z = DrawPillarColumn(z_back, z_bridge_back, psid, x_back, y_back, w, h);
01026 if (z_back_north < z_back) DrawPillar(psid, x_back, y_back, bottom_z, w, h, &half_pillar_sub_sprite[axis][0]);
01027 if (z_back_south < z_back) DrawPillar(psid, x_back, y_back, bottom_z, w, h, &half_pillar_sub_sprite[axis][1]);
01028 }
01029 }
01030
01040 static void DrawBridgeTramBits(int x, int y, int z, int offset, bool overlay, bool head)
01041 {
01042 static const SpriteID tram_offsets[2][6] = { { 107, 108, 109, 110, 111, 112 }, { 4, 5, 15, 16, 17, 18 } };
01043 static const SpriteID back_offsets[6] = { 95, 96, 99, 102, 100, 101 };
01044 static const SpriteID front_offsets[6] = { 97, 98, 103, 106, 104, 105 };
01045
01046 static const uint size_x[6] = { 1, 16, 16, 1, 16, 1 };
01047 static const uint size_y[6] = { 16, 1, 1, 16, 1, 16 };
01048 static const uint front_bb_offset_x[6] = { 15, 0, 0, 15, 0, 15 };
01049 static const uint front_bb_offset_y[6] = { 0, 15, 15, 0, 15, 0 };
01050
01051
01052
01053 if (head || !IsInvisibilitySet(TO_BRIDGES)) {
01054 AddSortableSpriteToDraw(SPR_TRAMWAY_BASE + tram_offsets[overlay][offset], PAL_NONE,
01055 x, y, size_x[offset], size_y[offset], 0x28, z,
01056 !head && IsTransparencySet(TO_BRIDGES));
01057 }
01058
01059
01060 if (!IsInvisibilitySet(TO_CATENARY)) {
01061 AddSortableSpriteToDraw(SPR_TRAMWAY_BASE + back_offsets[offset], PAL_NONE,
01062 x, y, size_x[offset], size_y[offset], 0x28, z,
01063 IsTransparencySet(TO_CATENARY));
01064 }
01065
01066
01067 EndSpriteCombine();
01068 StartSpriteCombine();
01069
01070
01071 if (!IsInvisibilitySet(TO_CATENARY)) {
01072 AddSortableSpriteToDraw(SPR_TRAMWAY_BASE + front_offsets[offset], PAL_NONE,
01073 x, y, size_x[offset] + front_bb_offset_x[offset], size_y[offset] + front_bb_offset_y[offset], 0x28, z,
01074 IsTransparencySet(TO_CATENARY), front_bb_offset_x[offset], front_bb_offset_y[offset]);
01075 }
01076 }
01077
01079 static void DrawTunnelBridgeRampSignal(const TileInfo *ti)
01080 {
01081 bool side = (_settings_game.vehicle.road_side != 0) &&_settings_game.construction.signal_side;
01082
01083 static const Point SignalPositions[2][4] = {
01084 {
01085 {13, 3}, { 2, 13}, { 3, 4}, {13, 14}
01086 }, {
01087 {14, 13}, { 3, 3}, {13, 2}, { 3, 13}
01088 }
01089 };
01090
01091 uint position;
01092 DiagDirection dir = GetTunnelBridgeDirection(ti->tile);
01093 if (IsTunnelBridgeExit(ti->tile)) dir = ReverseDiagDir(dir);
01094
01095 switch (dir) {
01096 default: NOT_REACHED();
01097 case DIAGDIR_NE: position = 0; break;
01098 case DIAGDIR_SE: position = 2; break;
01099 case DIAGDIR_SW: position = 1; break;
01100 case DIAGDIR_NW: position = 3; break;
01101 }
01102
01103 uint x = ti->x + SignalPositions[side][position].x;
01104 uint y = ti->y + SignalPositions[side][position].y;
01105 uint z = ti->z;
01106 if (ti->tileh != SLOPE_FLAT && IsBridge(ti->tile)) z += 8;
01107 SignalVariant variant = (_cur_year < _settings_client.gui.semaphore_build_before ? SIG_SEMAPHORE : SIG_ELECTRIC);
01108
01109 SpriteID sprite;
01110 if (variant == SIG_ELECTRIC) {
01111
01112 sprite = SPR_ORIGINAL_SIGNALS_BASE + ((position << 1) + IsTunnelBridgeWithSignGreen(ti->tile));
01113 } else {
01114
01115 sprite = SPR_SIGNALS_BASE + ((SIGTYPE_NORMAL - 1) * 16 + variant * 64 + (position << 1) + IsTunnelBridgeWithSignGreen(ti->tile));
01116 }
01117
01118 AddSortableSpriteToDraw(sprite, PAL_NONE, x, y, 1, 1, TILE_HEIGHT, z, false, 0, 0, BB_Z_SEPARATOR);
01119 }
01120
01121
01122 static void DrawBrigeSignalOnMiddelPart(const TileInfo *ti, TileIndex bridge_start_tile, uint z)
01123 {
01124
01125 uint bridge_signal_position = 0;
01126 int m2_position = 0;
01127
01128 uint bridge_section = GetTunnelBridgeLength(ti->tile, bridge_start_tile) + 1;
01129
01130 while (bridge_signal_position <= bridge_section) {
01131 bridge_signal_position += 4;
01132 if (bridge_signal_position == bridge_section) {
01133 bool side = (_settings_game.vehicle.road_side != 0) && _settings_game.construction.signal_side;
01134
01135 static const Point SignalPositions[2][4] = {
01136 {
01137 {13, 3}, { 2, 13}, { 3, 4}, {13, 14}
01138 }, {
01139 {10, 13}, { 4, 3}, {13, 2}, { 3, 3}
01140 }
01141 };
01142 uint position;
01143
01144 switch (GetTunnelBridgeDirection(bridge_start_tile)) {
01145 default: NOT_REACHED();
01146 case DIAGDIR_NE: position = 0; z += 8; break;
01147 case DIAGDIR_SE: position = 2; z += 8; break;
01148 case DIAGDIR_SW: position = 1; break;
01149 case DIAGDIR_NW: position = 3; break;
01150 }
01151
01152
01153 uint x = ti->x + SignalPositions[side][position].x;
01154 uint y = ti->y + SignalPositions[side][position].y;
01155
01156 SignalVariant variant = (_cur_year < _settings_client.gui.semaphore_build_before ? SIG_SEMAPHORE : SIG_ELECTRIC);
01157
01158 SpriteID sprite;
01159 if (variant == SIG_ELECTRIC) {
01160
01161 sprite = SPR_ORIGINAL_SIGNALS_BASE + ((position << 1) + !HasBit(_m[bridge_start_tile].m2, m2_position));
01162 } else {
01163
01164 sprite = SPR_SIGNALS_BASE + ((SIGTYPE_NORMAL - 1) * 16 + variant * 64 + (position << 1) + !HasBit(_m[bridge_start_tile].m2, m2_position));
01165 }
01166
01167 AddSortableSpriteToDraw(sprite, PAL_NONE, x, y, 1, 1, TILE_HEIGHT, z, false, 0, 0, BB_Z_SEPARATOR);
01168 }
01169 m2_position++;
01170 }
01171 }
01172
01186 static void DrawTile_TunnelBridge(TileInfo *ti)
01187 {
01188 TransportType transport_type = GetTunnelBridgeTransportType(ti->tile);
01189 DiagDirection tunnelbridge_direction = GetTunnelBridgeDirection(ti->tile);
01190
01191 if (IsTunnel(ti->tile)) {
01192
01193
01194
01195
01196
01197
01198
01199
01200
01201 static const int _tunnel_BB[4][12] = {
01202
01203
01204 { 1, 0, -15, -14, 0, 15, 16, 1, 0, 1, 16, 15 },
01205 { 0, 1, -14, -15, 15, 0, 1, 16, 1, 0, 15, 16 },
01206 { 1, 0, -15, -14, 0, 15, 16, 1, 0, 1, 16, 15 },
01207 { 0, 1, -14, -15, 15, 0, 1, 16, 1, 0, 15, 16 },
01208 };
01209 const int *BB_data = _tunnel_BB[tunnelbridge_direction];
01210
01211 bool catenary = false;
01212
01213 SpriteID image;
01214 if (transport_type == TRANSPORT_RAIL) {
01215 image = GetRailTypeInfo(GetRailType(ti->tile))->base_sprites.tunnel;
01216 } else {
01217 image = SPR_TUNNEL_ENTRY_REAR_ROAD;
01218 }
01219
01220 if (HasTunnelBridgeSnowOrDesert(ti->tile)) image += 32;
01221
01222 image += tunnelbridge_direction * 2;
01223 DrawGroundSprite(image, PAL_NONE);
01224
01225
01226 if (_game_mode != GM_MENU && _settings_client.gui.show_track_reservation && (transport_type == TRANSPORT_RAIL && HasTunnelBridgeReservation(ti->tile))) {
01227 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(ti->tile));
01228 DrawGroundSprite(DiagDirToAxis(tunnelbridge_direction) == AXIS_X ? rti->base_sprites.single_x : rti->base_sprites.single_y, PALETTE_CRASH);
01229 }
01230
01231 if (transport_type == TRANSPORT_ROAD) {
01232 RoadTypes rts = GetRoadTypes(ti->tile);
01233
01234 if (HasBit(rts, ROADTYPE_TRAM)) {
01235 static const SpriteID tunnel_sprites[2][4] = { { 28, 78, 79, 27 }, { 5, 76, 77, 4 } };
01236
01237 DrawGroundSprite(SPR_TRAMWAY_BASE + tunnel_sprites[rts - ROADTYPES_TRAM][tunnelbridge_direction], PAL_NONE);
01238
01239
01240 if (!IsInvisibilitySet(TO_CATENARY)) {
01241 catenary = true;
01242 StartSpriteCombine();
01243 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);
01244 }
01245 }
01246 } else {
01247 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(ti->tile));
01248 if (rti->UsesOverlay()) {
01249 SpriteID surface = GetCustomRailSprite(rti, ti->tile, RTSG_TUNNEL);
01250 if (surface != 0) DrawGroundSprite(surface + tunnelbridge_direction, PAL_NONE);
01251 }
01252
01253 if (HasCatenaryDrawn(GetRailType(ti->tile))) {
01254
01255 DrawCatenary(ti);
01256
01257 catenary = true;
01258 StartSpriteCombine();
01259
01260 DrawCatenaryOnTunnel(ti);
01261 }
01262 }
01263
01264 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);
01265
01266 if (catenary) EndSpriteCombine();
01267
01268
01269 AddSortableSpriteToDraw(SPR_EMPTY_BOUNDING_BOX, PAL_NONE, ti->x, ti->y, BB_data[6], BB_data[7], TILE_HEIGHT, ti->z);
01270 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);
01271
01272
01273 if (IsTunnelBridgeEntrance(ti->tile)) DrawTunnelBridgeRampSignal(ti);
01274
01275 DrawBridgeMiddle(ti);
01276 } else {
01277 const PalSpriteID *psid;
01278 int base_offset;
01279 bool ice = HasTunnelBridgeSnowOrDesert(ti->tile);
01280
01281 if (transport_type == TRANSPORT_RAIL) {
01282 base_offset = GetRailTypeInfo(GetRailType(ti->tile))->bridge_offset;
01283 assert(base_offset != 8);
01284 } else {
01285 base_offset = 8;
01286 }
01287
01288
01289 assert( (base_offset & 0x07) == 0x00);
01290
01291 DrawFoundation(ti, GetBridgeFoundation(ti->tileh, DiagDirToAxis(tunnelbridge_direction)));
01292
01293
01294 base_offset += (6 - tunnelbridge_direction) % 4;
01295
01296 if (ti->tileh == SLOPE_FLAT) base_offset += 4;
01297
01298
01299 if (transport_type != TRANSPORT_WATER) {
01300 psid = &GetBridgeSpriteTable(GetBridgeType(ti->tile), BRIDGE_PIECE_HEAD)[base_offset];
01301 } else {
01302 psid = _aqueduct_sprites + base_offset;
01303 }
01304
01305 if (!ice) {
01306 TileIndex next = ti->tile + TileOffsByDiagDir(tunnelbridge_direction);
01307 if (ti->tileh != SLOPE_FLAT && ti->z == 0 && HasTileWaterClass(next) && GetWaterClass(next) == WATER_CLASS_SEA) {
01308 DrawShoreTile(ti->tileh);
01309 } else {
01310 DrawClearLandTile(ti, 3);
01311 }
01312 } else {
01313 DrawGroundSprite(SPR_FLAT_SNOW_DESERT_TILE + SlopeToSpriteOffset(ti->tileh), PAL_NONE);
01314 }
01315
01316
01317
01318
01319 if (transport_type == TRANSPORT_ROAD || transport_type == TRANSPORT_RAIL) StartSpriteCombine();
01320
01321
01322
01323
01324
01325 AddSortableSpriteToDraw(psid->sprite, psid->pal, ti->x, ti->y, 16, 16, ti->tileh == SLOPE_FLAT ? 0 : 8, ti->z);
01326
01327 if (transport_type == TRANSPORT_ROAD) {
01328 RoadTypes rts = GetRoadTypes(ti->tile);
01329
01330 if (HasBit(rts, ROADTYPE_TRAM)) {
01331 uint offset = tunnelbridge_direction;
01332 uint z = ti->z;
01333 if (ti->tileh != SLOPE_FLAT) {
01334 offset = (offset + 1) & 1;
01335 z += TILE_HEIGHT;
01336 } else {
01337 offset += 2;
01338 }
01339
01340 DrawBridgeTramBits(ti->x, ti->y, z, offset, HasBit(rts, ROADTYPE_ROAD), true);
01341 }
01342 EndSpriteCombine();
01343 } else if (transport_type == TRANSPORT_RAIL) {
01344 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(ti->tile));
01345 if (rti->UsesOverlay()) {
01346 SpriteID surface = GetCustomRailSprite(rti, ti->tile, RTSG_BRIDGE);
01347 if (surface != 0) {
01348 if (HasBridgeFlatRamp(ti->tileh, DiagDirToAxis(tunnelbridge_direction))) {
01349 AddSortableSpriteToDraw(surface + ((DiagDirToAxis(tunnelbridge_direction) == AXIS_X) ? RTBO_X : RTBO_Y), PAL_NONE, ti->x, ti->y, 16, 16, 0, ti->z + 8);
01350 } else {
01351 AddSortableSpriteToDraw(surface + RTBO_SLOPE + tunnelbridge_direction, PAL_NONE, ti->x, ti->y, 16, 16, 8, ti->z);
01352 }
01353 }
01354
01355
01356
01357 } else if (_game_mode != GM_MENU &&_settings_client.gui.show_track_reservation && HasTunnelBridgeReservation(ti->tile)) {
01358 if (HasBridgeFlatRamp(ti->tileh, DiagDirToAxis(tunnelbridge_direction))) {
01359 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);
01360 } else {
01361 AddSortableSpriteToDraw(rti->base_sprites.single_sloped + tunnelbridge_direction, PALETTE_CRASH, ti->x, ti->y, 16, 16, 8, ti->z);
01362 }
01363 }
01364 EndSpriteCombine();
01365 if (HasCatenaryDrawn(GetRailType(ti->tile))) {
01366 DrawCatenary(ti);
01367 }
01368 }
01369
01370 if (HasWormholeSignals(ti->tile)) DrawTunnelBridgeRampSignal(ti);
01371
01372 DrawBridgeMiddle(ti);
01373 }
01374 }
01375
01394 static BridgePieces CalcBridgePiece(uint north, uint south)
01395 {
01396 if (north == 1) {
01397 return BRIDGE_PIECE_NORTH;
01398 } else if (south == 1) {
01399 return BRIDGE_PIECE_SOUTH;
01400 } else if (north < south) {
01401 return north & 1 ? BRIDGE_PIECE_INNER_SOUTH : BRIDGE_PIECE_INNER_NORTH;
01402 } else if (north > south) {
01403 return south & 1 ? BRIDGE_PIECE_INNER_NORTH : BRIDGE_PIECE_INNER_SOUTH;
01404 } else {
01405 return north & 1 ? BRIDGE_PIECE_MIDDLE_EVEN : BRIDGE_PIECE_MIDDLE_ODD;
01406 }
01407 }
01408
01413 void DrawBridgeMiddle(const TileInfo *ti)
01414 {
01415
01416
01417
01418
01419
01420
01421
01422
01423
01424
01425
01426
01427
01428
01429
01430
01431 if (!IsBridgeAbove(ti->tile)) return;
01432
01433 TileIndex rampnorth = GetNorthernBridgeEnd(ti->tile);
01434 TileIndex rampsouth = GetSouthernBridgeEnd(ti->tile);
01435 TransportType transport_type = GetTunnelBridgeTransportType(rampsouth);
01436
01437 Axis axis = GetBridgeAxis(ti->tile);
01438 BridgePieces piece = CalcBridgePiece(
01439 GetTunnelBridgeLength(ti->tile, rampnorth) + 1,
01440 GetTunnelBridgeLength(ti->tile, rampsouth) + 1
01441 );
01442
01443 const PalSpriteID *psid;
01444 bool drawfarpillar;
01445 if (transport_type != TRANSPORT_WATER) {
01446 BridgeType type = GetBridgeType(rampsouth);
01447 drawfarpillar = !HasBit(GetBridgeSpec(type)->flags, 0);
01448
01449 uint base_offset;
01450 if (transport_type == TRANSPORT_RAIL) {
01451 base_offset = GetRailTypeInfo(GetRailType(rampsouth))->bridge_offset;
01452 } else {
01453 base_offset = 8;
01454 }
01455
01456 psid = base_offset + GetBridgeSpriteTable(type, piece);
01457 } else {
01458 drawfarpillar = true;
01459 psid = _aqueduct_sprites;
01460 }
01461
01462 if (axis != AXIS_X) psid += 4;
01463
01464 int x = ti->x;
01465 int y = ti->y;
01466 uint bridge_z = GetBridgeHeight(rampsouth);
01467 uint z = bridge_z - BRIDGE_Z_START;
01468
01469
01470 AddSortableSpriteToDraw(SPR_EMPTY_BOUNDING_BOX, PAL_NONE, x, y, 16, 16, 1, bridge_z - TILE_HEIGHT + BB_Z_SEPARATOR);
01471
01472
01473 if (transport_type == TRANSPORT_ROAD || transport_type == TRANSPORT_RAIL) StartSpriteCombine();
01474
01475
01476 if (!IsInvisibilitySet(TO_BRIDGES)) {
01477 if (axis == AXIS_X) {
01478 AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 16, 1, 0x28, z, IsTransparencySet(TO_BRIDGES), 0, 0, BRIDGE_Z_START);
01479 } else {
01480 AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 1, 16, 0x28, z, IsTransparencySet(TO_BRIDGES), 0, 0, BRIDGE_Z_START);
01481 }
01482 }
01483
01484 psid++;
01485
01486 if (transport_type == TRANSPORT_ROAD) {
01487 RoadTypes rts = GetRoadTypes(rampsouth);
01488
01489 if (HasBit(rts, ROADTYPE_TRAM)) {
01490
01491 DrawBridgeTramBits(x, y, bridge_z, axis ^ 1, HasBit(rts, ROADTYPE_ROAD), false);
01492 } else {
01493 EndSpriteCombine();
01494 StartSpriteCombine();
01495 }
01496 } else if (transport_type == TRANSPORT_RAIL) {
01497 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(rampsouth));
01498 if (rti->UsesOverlay()) {
01499 SpriteID surface = GetCustomRailSprite(rti, rampsouth, RTSG_BRIDGE, TCX_ON_BRIDGE);
01500 if (surface != 0) {
01501 AddSortableSpriteToDraw(surface + axis, PAL_NONE, x, y, 16, 16, 0, bridge_z, IsTransparencySet(TO_BRIDGES));
01502 }
01503 }
01504 EndSpriteCombine();
01505
01506 if (HasCatenaryDrawn(GetRailType(rampsouth))) {
01507 DrawCatenaryOnBridge(ti);
01508 }
01509
01510 if (HasWormholeSignals(rampsouth)) {
01511 IsTunnelBridgeExit(rampsouth) ? DrawBrigeSignalOnMiddelPart(ti, rampnorth, z): DrawBrigeSignalOnMiddelPart(ti, rampsouth, z);
01512 }
01513 }
01514
01515
01516 if (!IsInvisibilitySet(TO_BRIDGES)) {
01517 if (axis == AXIS_X) {
01518 y += 12;
01519 if (psid->sprite & SPRITE_MASK) AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 16, 4, 0x28, z, IsTransparencySet(TO_BRIDGES), 0, 3, BRIDGE_Z_START);
01520 } else {
01521 x += 12;
01522 if (psid->sprite & SPRITE_MASK) AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 4, 16, 0x28, z, IsTransparencySet(TO_BRIDGES), 3, 0, BRIDGE_Z_START);
01523 }
01524 }
01525
01526
01527 if (transport_type == TRANSPORT_ROAD) EndSpriteCombine();
01528
01529
01530 if (IsInvisibilitySet(TO_BRIDGES)) return;
01531
01532 psid++;
01533 if (ti->z + 5 == z) {
01534
01535 if (psid->sprite != 0) {
01536 SpriteID image = psid->sprite;
01537 SpriteID pal = psid->pal;
01538 if (IsTransparencySet(TO_BRIDGES)) {
01539 SetBit(image, PALETTE_MODIFIER_TRANSPARENT);
01540 pal = PALETTE_TO_TRANSPARENT;
01541 }
01542
01543 DrawGroundSpriteAt(image, pal, x - ti->x, y - ti->y, z - ti->z);
01544 }
01545 } else if (_settings_client.gui.bridge_pillars) {
01546
01547 DrawBridgePillars(psid, ti, axis, drawfarpillar, x, y, z);
01548 }
01549 }
01550
01551
01552 static uint GetSlopeZ_TunnelBridge(TileIndex tile, uint x, uint y)
01553 {
01554 uint z;
01555 Slope tileh = GetTileSlope(tile, &z);
01556
01557 x &= 0xF;
01558 y &= 0xF;
01559
01560 if (IsTunnel(tile)) {
01561 uint pos = (DiagDirToAxis(GetTunnelBridgeDirection(tile)) == AXIS_X ? y : x);
01562
01563
01564 if (5 <= pos && pos <= 10) return z;
01565 } else {
01566 DiagDirection dir = GetTunnelBridgeDirection(tile);
01567 uint pos = (DiagDirToAxis(dir) == AXIS_X ? y : x);
01568
01569 z += ApplyFoundationToSlope(GetBridgeFoundation(tileh, DiagDirToAxis(dir)), &tileh);
01570
01571
01572 if (5 <= pos && pos <= 10) {
01573 uint delta;
01574
01575 if (tileh != SLOPE_FLAT) return z + TILE_HEIGHT;
01576
01577 switch (dir) {
01578 default: NOT_REACHED();
01579 case DIAGDIR_NE: delta = (TILE_SIZE - 1 - x) / 2; break;
01580 case DIAGDIR_SE: delta = y / 2; break;
01581 case DIAGDIR_SW: delta = x / 2; break;
01582 case DIAGDIR_NW: delta = (TILE_SIZE - 1 - y) / 2; break;
01583 }
01584 return z + 1 + delta;
01585 }
01586 }
01587
01588 return z + GetPartialZ(x, y, tileh);
01589 }
01590
01591 static Foundation GetFoundation_TunnelBridge(TileIndex tile, Slope tileh)
01592 {
01593 return IsTunnel(tile) ? FOUNDATION_NONE : GetBridgeFoundation(tileh, DiagDirToAxis(GetTunnelBridgeDirection(tile)));
01594 }
01595
01596 static void GetTileDesc_TunnelBridge(TileIndex tile, TileDesc *td)
01597 {
01598 TransportType tt = GetTunnelBridgeTransportType(tile);
01599
01600 if (IsTunnel(tile)) {
01601 td->str = (tt == TRANSPORT_RAIL) ? HasWormholeSignals(tile) ? STR_LAI_TUNNEL_DESCRIPTION_RAILROAD_SIGNAL : STR_LAI_TUNNEL_DESCRIPTION_RAILROAD : STR_LAI_TUNNEL_DESCRIPTION_ROAD;
01602 } else {
01603 td->str = (tt == TRANSPORT_WATER) ? STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT : HasWormholeSignals(tile) ? STR_LAI_BRIDGE_DESCRIPTION_RAILROAD_SIGNAL : GetBridgeSpec(GetBridgeType(tile))->transport_name[tt];
01604 }
01605 td->owner[0] = GetTileOwner(tile);
01606
01607 Owner road_owner = INVALID_OWNER;
01608 Owner tram_owner = INVALID_OWNER;
01609 RoadTypes rts = GetRoadTypes(tile);
01610 if (HasBit(rts, ROADTYPE_ROAD)) road_owner = GetRoadOwner(tile, ROADTYPE_ROAD);
01611 if (HasBit(rts, ROADTYPE_TRAM)) tram_owner = GetRoadOwner(tile, ROADTYPE_TRAM);
01612
01613
01614 if ((tram_owner != INVALID_OWNER && tram_owner != td->owner[0]) ||
01615 (road_owner != INVALID_OWNER && road_owner != td->owner[0])) {
01616 uint i = 1;
01617 if (road_owner != INVALID_OWNER) {
01618 td->owner_type[i] = STR_LAND_AREA_INFORMATION_ROAD_OWNER;
01619 td->owner[i] = road_owner;
01620 i++;
01621 }
01622 if (tram_owner != INVALID_OWNER) {
01623 td->owner_type[i] = STR_LAND_AREA_INFORMATION_TRAM_OWNER;
01624 td->owner[i] = tram_owner;
01625 }
01626 }
01627
01628 if (tt == TRANSPORT_RAIL) {
01629 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(tile));
01630 td->rail_speed = rti->max_speed;
01631
01632 if (!IsTunnel(tile)) {
01633 uint16 spd = GetBridgeSpec(GetBridgeType(tile))->speed;
01634 if (td->rail_speed == 0 || spd < td->rail_speed) {
01635 td->rail_speed = spd;
01636 }
01637 }
01638 }
01639 }
01640
01641
01642 static void TileLoop_TunnelBridge(TileIndex tile)
01643 {
01644 bool snow_or_desert = HasTunnelBridgeSnowOrDesert(tile);
01645 switch (_settings_game.game_creation.landscape) {
01646 case LT_ARCTIC: {
01647
01648
01649
01650 uint z = IsBridge(tile) ? GetTileMaxZ(tile) : GetTileZ(tile);
01651 if (snow_or_desert != (z > GetSnowLine())) {
01652 SetTunnelBridgeSnowOrDesert(tile, !snow_or_desert);
01653 MarkTileDirtyByTile(tile);
01654 }
01655 break;
01656 }
01657
01658 case LT_TROPIC:
01659 if (GetTropicZone(tile) == TROPICZONE_DESERT && !snow_or_desert) {
01660 SetTunnelBridgeSnowOrDesert(tile, true);
01661 MarkTileDirtyByTile(tile);
01662 }
01663 break;
01664
01665 default:
01666 break;
01667 }
01668 }
01669
01670 static bool ClickTile_TunnelBridge(TileIndex tile)
01671 {
01672
01673 if (IsTunnelTile(tile)) {
01674 int count = 0;
01675 const Train *t;
01676 TileIndex tile_end = GetOtherTunnelBridgeEnd(tile);
01677 FOR_ALL_TRAINS(t) {
01678 if (!t->IsFrontEngine()) continue;
01679 if (tile == t->tile || tile_end == t->tile) {
01680 ShowVehicleViewWindow(t);
01681 count++;
01682 }
01683 if (count > 19) break;
01684 }
01685 if (count > 0) return true;
01686 }
01687 return false;
01688 }
01689
01690 static TrackStatus GetTileTrackStatus_TunnelBridge(TileIndex tile, TransportType mode, uint sub_mode, DiagDirection side)
01691 {
01692 TransportType transport_type = GetTunnelBridgeTransportType(tile);
01693 if (transport_type != mode || (transport_type == TRANSPORT_ROAD && (GetRoadTypes(tile) & sub_mode) == 0)) return 0;
01694
01695 DiagDirection dir = GetTunnelBridgeDirection(tile);
01696 if (side != INVALID_DIAGDIR && side != ReverseDiagDir(dir)) return 0;
01697 return CombineTrackStatus(TrackBitsToTrackdirBits(DiagDirToDiagTrackBits(dir)), TRACKDIR_BIT_NONE);
01698 }
01699
01700 static void ChangeTileOwner_TunnelBridge(TileIndex tile, Owner old_owner, Owner new_owner)
01701 {
01702 for (RoadType rt = ROADTYPE_ROAD; rt < ROADTYPE_END; rt++) {
01703
01704 if (GetRoadOwner(tile, rt) == old_owner) {
01705 SetRoadOwner(tile, rt, new_owner == INVALID_OWNER ? OWNER_NONE : new_owner);
01706 }
01707 }
01708
01709 if (!IsTileOwner(tile, old_owner)) return;
01710
01711 if (new_owner != INVALID_OWNER) {
01712 SetTileOwner(tile, new_owner);
01713 } else {
01714 if (GetTunnelBridgeTransportType(tile) == TRANSPORT_RAIL) {
01715
01716
01717 CommandCost ret = DoCommand(tile, 0, 0, DC_EXEC | DC_BANKRUPT, CMD_LANDSCAPE_CLEAR);
01718 assert(ret.Succeeded());
01719 } else {
01720
01721 SetTileOwner(tile, OWNER_NONE);
01722 }
01723 }
01724 }
01725
01731 static const byte TUNNEL_SOUND_FRAME = 1;
01732
01741 extern const byte _tunnel_visibility_frame[DIAGDIR_END] = {12, 8, 8, 12};
01742
01743 static VehicleEnterTileStatus VehicleEnter_TunnelBridge(Vehicle *v, TileIndex tile, int x, int y)
01744 {
01745 int z = GetSlopeZ(x, y) - v->z_pos;
01746
01747 if (abs(z) > 2) return VETSB_CANNOT_ENTER;
01748
01749 const DiagDirection dir = GetTunnelBridgeDirection(tile);
01750
01751 const DiagDirection vdir = DirToDiagDir(v->direction);
01752
01753 byte pos = (DiagDirToAxis(vdir) == AXIS_X ? x : y) & TILE_UNIT_MASK;
01754
01755 byte frame = (vdir == DIAGDIR_NE || vdir == DIAGDIR_NW) ? TILE_SIZE - 1 - pos : pos;
01756
01757 if (IsTunnel(tile)) {
01758 if (v->type == VEH_TRAIN) {
01759 Train *t = Train::From(v);
01760
01761 if (t->track != TRACK_BIT_WORMHOLE && dir == vdir) {
01762 if (t->IsFrontEngine() && frame == TUNNEL_SOUND_FRAME) {
01763 if (!PlayVehicleSound(t, VSE_TUNNEL) && RailVehInfo(t->engine_type)->engclass == 0) {
01764 SndPlayVehicleFx(SND_05_TRAIN_THROUGH_TUNNEL, v);
01765 }
01766 return VETSB_CONTINUE;
01767 }
01768 if (frame == _tunnel_visibility_frame[dir]) {
01769 t->tile = tile;
01770 t->track = TRACK_BIT_WORMHOLE;
01771 t->vehstatus |= VS_HIDDEN;
01772 return VETSB_ENTERED_WORMHOLE;
01773 }
01774 }
01775
01776 if (dir == ReverseDiagDir(vdir) && frame == TILE_SIZE - _tunnel_visibility_frame[dir] && z == 0) {
01777
01778 t->tile = tile;
01779 t->track = DiagDirToDiagTrackBits(vdir);
01780 assert(t->track);
01781 t->vehstatus &= ~VS_HIDDEN;
01782 return VETSB_ENTERED_WORMHOLE;
01783 }
01784 } else if (v->type == VEH_ROAD) {
01785 RoadVehicle *rv = RoadVehicle::From(v);
01786
01787
01788 if (rv->state != RVSB_WORMHOLE && dir == vdir) {
01789 if (frame == _tunnel_visibility_frame[dir]) {
01790
01791 assert(frame == rv->frame + 1);
01792 rv->tile = tile;
01793 rv->state = RVSB_WORMHOLE;
01794 rv->vehstatus |= VS_HIDDEN;
01795 return VETSB_ENTERED_WORMHOLE;
01796 } else {
01797 return VETSB_CONTINUE;
01798 }
01799 }
01800
01801
01802 if (dir == ReverseDiagDir(vdir) && frame == TILE_SIZE - _tunnel_visibility_frame[dir] && z == 0) {
01803 rv->tile = tile;
01804 rv->state = DiagDirToDiagTrackdir(vdir);
01805 rv->frame = frame;
01806 rv->vehstatus &= ~VS_HIDDEN;
01807 return VETSB_ENTERED_WORMHOLE;
01808 }
01809 }
01810 } else {
01811 if (v->type != VEH_SHIP) {
01812
01813 uint16 spd = GetBridgeSpec(GetBridgeType(tile))->speed;
01814
01815 if (v->type == VEH_ROAD) spd *= 2;
01816 Vehicle *first = v->First();
01817 first->cur_speed = min(first->cur_speed, spd);
01818 }
01819
01820 if (vdir == dir) {
01821
01822 if (frame != TILE_SIZE - 1) return VETSB_CONTINUE;
01823 switch (v->type) {
01824 case VEH_TRAIN: {
01825 Train *t = Train::From(v);
01826 t->track = TRACK_BIT_WORMHOLE;
01827 ClrBit(t->gv_flags, GVF_GOINGUP_BIT);
01828 ClrBit(t->gv_flags, GVF_GOINGDOWN_BIT);
01829 break;
01830 }
01831
01832 case VEH_ROAD: {
01833 RoadVehicle *rv = RoadVehicle::From(v);
01834 rv->state = RVSB_WORMHOLE;
01835
01836 ClrBit(rv->gv_flags, GVF_GOINGUP_BIT);
01837 ClrBit(rv->gv_flags, GVF_GOINGDOWN_BIT);
01838 break;
01839 }
01840
01841 case VEH_SHIP:
01842 Ship::From(v)->state = TRACK_BIT_WORMHOLE;
01843 break;
01844
01845 default: NOT_REACHED();
01846 }
01847 return VETSB_ENTERED_WORMHOLE;
01848 } else if (vdir == ReverseDiagDir(dir)) {
01849 v->tile = tile;
01850 switch (v->type) {
01851 case VEH_TRAIN: {
01852 Train *t = Train::From(v);
01853 if (t->track == TRACK_BIT_WORMHOLE) {
01854 t->track = DiagDirToDiagTrackBits(vdir);
01855 return VETSB_ENTERED_WORMHOLE;
01856 }
01857 break;
01858 }
01859
01860 case VEH_ROAD: {
01861 RoadVehicle *rv = RoadVehicle::From(v);
01862 if (rv->state == RVSB_WORMHOLE) {
01863 rv->state = DiagDirToDiagTrackdir(vdir);
01864 rv->frame = 0;
01865 return VETSB_ENTERED_WORMHOLE;
01866 }
01867 break;
01868 }
01869
01870 case VEH_SHIP: {
01871 Ship *ship = Ship::From(v);
01872 if (ship->state == TRACK_BIT_WORMHOLE) {
01873 ship->state = DiagDirToDiagTrackBits(vdir);
01874 return VETSB_ENTERED_WORMHOLE;
01875 }
01876 break;
01877 }
01878
01879 default: NOT_REACHED();
01880 }
01881 }
01882 }
01883 return VETSB_CONTINUE;
01884 }
01885
01886 static CommandCost TerraformTile_TunnelBridge(TileIndex tile, DoCommandFlag flags, uint z_new, Slope tileh_new)
01887 {
01888 if (_settings_game.construction.build_on_slopes && AutoslopeEnabled() && IsBridge(tile) && GetTunnelBridgeTransportType(tile) != TRANSPORT_WATER) {
01889 DiagDirection direction = GetTunnelBridgeDirection(tile);
01890 Axis axis = DiagDirToAxis(direction);
01891 CommandCost res;
01892 uint z_old;
01893 Slope tileh_old = GetTileSlope(tile, &z_old);
01894
01895
01896 if ((direction == DIAGDIR_NW) || (direction == DIAGDIR_NE)) {
01897 CheckBridgeSlopeSouth(axis, &tileh_old, &z_old);
01898 res = CheckBridgeSlopeSouth(axis, &tileh_new, &z_new);
01899 } else {
01900 CheckBridgeSlopeNorth(axis, &tileh_old, &z_old);
01901 res = CheckBridgeSlopeNorth(axis, &tileh_new, &z_new);
01902 }
01903
01904
01905 if (res.Succeeded() && (z_old == z_new) && (tileh_old == tileh_new)) return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
01906 }
01907
01908 return DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
01909 }
01910
01911 extern const TileTypeProcs _tile_type_tunnelbridge_procs = {
01912 DrawTile_TunnelBridge,
01913 GetSlopeZ_TunnelBridge,
01914 ClearTile_TunnelBridge,
01915 NULL,
01916 GetTileDesc_TunnelBridge,
01917 GetTileTrackStatus_TunnelBridge,
01918 ClickTile_TunnelBridge,
01919 NULL,
01920 TileLoop_TunnelBridge,
01921 ChangeTileOwner_TunnelBridge,
01922 NULL,
01923 VehicleEnter_TunnelBridge,
01924 GetFoundation_TunnelBridge,
01925 TerraformTile_TunnelBridge,
01926 };