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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
00540 if (GetTileSlope(end_tile, NULL) != InclinedSlope(ReverseDiagDir(direction))) return false;
00541
00542
00543 end_tile += delta;
00544 if (!IsValidTile(end_tile)) return false;
00545 if (!(IsWaterTile(end_tile) || IsBuoyTile(end_tile))) return false;
00546
00547
00548 for (;;) {
00549 end_tile += delta;
00550 if (!IsValidTile(end_tile)) return false;
00551 if (GetTileSlope(end_tile, NULL) != SLOPE_FLAT) break;
00552 if (!(IsWaterTile(end_tile) || IsBuoyTile(end_tile))) return false;
00553 }
00554
00555
00556 if (GetTileSlope(end_tile, NULL) != InclinedSlope(direction)) return false;
00557
00558 int tiles = 0;
00559
00560 for (;;) {
00561 end_tile += delta;
00562 if (!IsValidTile(end_tile)) return false;
00563 if (GetTileZ(end_tile) == 0) break;
00564 tiles++;
00565 }
00566
00567
00568 return (tiles >= 2 && tiles <= 4);
00569 }
00570
00581 CommandCost CmdBuildTunnel(TileIndex start_tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00582 {
00583 TransportType transport_type = Extract<TransportType, 8, 2>(p1);
00584
00585 RailType railtype = INVALID_RAILTYPE;
00586 RoadTypes rts = ROADTYPES_NONE;
00587 _build_tunnel_endtile = 0;
00588 switch (transport_type) {
00589 case TRANSPORT_RAIL:
00590 railtype = Extract<RailType, 0, 4>(p1);
00591 if (!ValParamRailtype(railtype)) return CMD_ERROR;
00592 break;
00593
00594 case TRANSPORT_ROAD:
00595 rts = Extract<RoadTypes, 0, 2>(p1);
00596 if (!HasExactlyOneBit(rts) || !HasRoadTypesAvail(_current_company, rts)) return CMD_ERROR;
00597 break;
00598
00599 default: return CMD_ERROR;
00600 }
00601
00602 uint start_z;
00603 uint end_z;
00604 Slope start_tileh = GetTileSlope(start_tile, &start_z);
00605 DiagDirection direction = GetInclinedSlopeDirection(start_tileh);
00606 if (direction == INVALID_DIAGDIR) return_cmd_error(STR_ERROR_SITE_UNSUITABLE_FOR_TUNNEL);
00607
00608 if (HasTileWaterGround(start_tile)) return_cmd_error(STR_ERROR_CAN_T_BUILD_ON_WATER);
00609
00610 CommandCost ret = DoCommand(start_tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00611 if (ret.Failed()) return ret;
00612
00613
00614
00615
00616
00617
00618 TileIndexDiff delta = TileOffsByDiagDir(direction);
00619 DiagDirection tunnel_in_way_dir;
00620 if (DiagDirToAxis(direction) == AXIS_Y) {
00621 tunnel_in_way_dir = (TileX(start_tile) < (MapMaxX() / 2)) ? DIAGDIR_SW : DIAGDIR_NE;
00622 } else {
00623 tunnel_in_way_dir = (TileY(start_tile) < (MapMaxX() / 2)) ? DIAGDIR_SE : DIAGDIR_NW;
00624 }
00625
00626 TileIndex end_tile = start_tile;
00627
00628
00629 int tiles_coef = 3;
00630
00631 int tiles = 0;
00632
00633 int tiles_bump = 25;
00634
00635
00636
00637
00638
00639
00640
00641 int pass_water = 0;
00642
00643 CommandCost cost(EXPENSES_CONSTRUCTION);
00644 Slope end_tileh;
00645 for (;;) {
00646 end_tile += delta;
00647 if (!IsValidTile(end_tile)) return_cmd_error(STR_ERROR_TUNNEL_THROUGH_MAP_BORDER);
00648 end_tileh = GetTileSlope(end_tile, &end_z);
00649
00650 if (start_z == end_z) {
00651 if (start_z > 0) break;
00652
00653 if (end_tileh != SLOPE_FLAT) {
00654 if (pass_water == 2) pass_water = 3;
00655 if (pass_water == 0) {
00656
00657 (tiles >= 2 && tiles <= 4 && IsCrossableWater(end_tile, delta, direction)) ? pass_water = 2 : pass_water = 1;
00658 }
00659
00660 if (pass_water == 1) break;
00661 if (pass_water == 3) pass_water = 1;
00662 }
00663 }
00664
00665 if (!_cheats.crossing_tunnels.value && IsTunnelInWayDir(end_tile, start_z, tunnel_in_way_dir)) {
00666 return_cmd_error(STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY);
00667 }
00668
00669 tiles++;
00670 if (tiles == tiles_bump) {
00671 tiles_coef++;
00672 tiles_bump *= 2;
00673 }
00674
00675 cost.AddCost(_price[PR_BUILD_TUNNEL]);
00676 cost.AddCost(cost.GetCost() >> tiles_coef);
00677 }
00678
00679
00680 cost.AddCost(_price[PR_BUILD_TUNNEL]);
00681 cost.AddCost(ret);
00682
00683
00684 _build_tunnel_endtile = end_tile;
00685
00686 if (tiles > _settings_game.construction.max_tunnel_length) return_cmd_error(STR_ERROR_TUNNEL_TOO_LONG);
00687
00688 if (HasTileWaterGround(end_tile)) return_cmd_error(STR_ERROR_CAN_T_BUILD_ON_WATER);
00689
00690
00691 ret = DoCommand(end_tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00692 if (ret.Failed()) return_cmd_error(STR_ERROR_UNABLE_TO_EXCAVATE_LAND);
00693 cost.AddCost(ret);
00694
00695
00696 if (end_tileh != ComplementSlope(start_tileh)) {
00697
00698
00699 ClearedObjectArea *coa = FindClearedObject(end_tile);
00700 if (coa == NULL) {
00701 coa = _cleared_object_areas.Append();
00702 coa->first_tile = end_tile;
00703 coa->area = TileArea(end_tile, 1, 1);
00704 }
00705
00706
00707 TileIndex old_first_tile = coa->first_tile;
00708 coa->first_tile = INVALID_TILE;
00709 ret = DoCommand(end_tile, end_tileh & start_tileh, 0, flags, CMD_TERRAFORM_LAND);
00710 coa->first_tile = old_first_tile;
00711 if (ret.Failed()) return_cmd_error(STR_ERROR_UNABLE_TO_EXCAVATE_LAND);
00712 cost.AddCost(ret);
00713 }
00714 cost.AddCost(_price[PR_BUILD_TUNNEL]);
00715
00716
00717 switch (transport_type) {
00718 case TRANSPORT_ROAD: cost.AddCost((tiles + 2) * _price[PR_BUILD_ROAD] * 2); break;
00719 case TRANSPORT_RAIL: cost.AddCost((tiles + 2) * RailBuildCost(railtype)); break;
00720 default: break;
00721 }
00722
00723 if (flags & DC_EXEC) {
00724 if (transport_type == TRANSPORT_RAIL) {
00725 MakeRailTunnel(start_tile, _current_company, direction, railtype);
00726 MakeRailTunnel(end_tile, _current_company, ReverseDiagDir(direction), railtype);
00727 AddSideToSignalBuffer(start_tile, INVALID_DIAGDIR, _current_company);
00728 YapfNotifyTrackLayoutChange(start_tile, DiagDirToDiagTrack(direction));
00729 } else {
00730 MakeRoadTunnel(start_tile, _current_company, direction, rts);
00731 MakeRoadTunnel(end_tile, _current_company, ReverseDiagDir(direction), rts);
00732 }
00733 }
00734
00735 return cost;
00736 }
00737
00738
00744 static inline CommandCost CheckAllowRemoveTunnelBridge(TileIndex tile)
00745 {
00746
00747 if (_current_company == OWNER_WATER || _game_mode == GM_EDITOR) return CommandCost();
00748
00749 switch (GetTunnelBridgeTransportType(tile)) {
00750 case TRANSPORT_ROAD: {
00751 RoadTypes rts = GetRoadTypes(tile);
00752 Owner road_owner = _current_company;
00753 Owner tram_owner = _current_company;
00754
00755 if (HasBit(rts, ROADTYPE_ROAD)) road_owner = GetRoadOwner(tile, ROADTYPE_ROAD);
00756 if (HasBit(rts, ROADTYPE_TRAM)) tram_owner = GetRoadOwner(tile, ROADTYPE_TRAM);
00757
00758
00759 if (road_owner == OWNER_TOWN && !(_settings_game.construction.extra_dynamite || _cheats.magic_bulldozer.value)) {
00760 return CheckTileOwnership(tile);
00761 }
00762 if (road_owner == OWNER_NONE || road_owner == OWNER_TOWN) road_owner = _current_company;
00763 if (tram_owner == OWNER_NONE) tram_owner = _current_company;
00764
00765 CommandCost ret = CheckOwnership(road_owner, tile);
00766 if (ret.Succeeded()) ret = CheckOwnership(tram_owner, tile);
00767 return ret;
00768 }
00769
00770 case TRANSPORT_RAIL:
00771 case TRANSPORT_WATER:
00772 return CheckOwnership(GetTileOwner(tile));
00773
00774 default: NOT_REACHED();
00775 }
00776 }
00777
00784 static CommandCost DoClearTunnel(TileIndex tile, DoCommandFlag flags)
00785 {
00786 CommandCost ret = CheckAllowRemoveTunnelBridge(tile);
00787 if (ret.Failed()) return ret;
00788
00789 TileIndex endtile = GetOtherTunnelEnd(tile);
00790
00791 ret = TunnelBridgeIsFree(tile, endtile);
00792 if (ret.Failed()) return ret;
00793
00794 _build_tunnel_endtile = endtile;
00795
00796 Town *t = NULL;
00797 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00798 t = ClosestTownFromTile(tile, UINT_MAX);
00799
00800
00801
00802 CommandCost ret = CheckforTownRating(flags, t, TUNNELBRIDGE_REMOVE);
00803 if (ret.Failed()) return ret;
00804 }
00805
00806
00807
00808 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00809 ChangeTownRating(t, RATING_TUNNEL_BRIDGE_DOWN_STEP, RATING_TUNNEL_BRIDGE_MINIMUM, flags);
00810 }
00811
00812 if (flags & DC_EXEC) {
00813 if (GetTunnelBridgeTransportType(tile) == TRANSPORT_RAIL) {
00814
00815 DiagDirection dir = GetTunnelBridgeDirection(tile);
00816 Track track = DiagDirToDiagTrack(dir);
00817 Owner owner = GetTileOwner(tile);
00818
00819 Train *v = NULL;
00820 if (HasTunnelBridgeReservation(tile)) {
00821 v = GetTrainForReservation(tile, track);
00822 if (v != NULL) FreeTrainTrackReservation(v);
00823 }
00824
00825 DoClearSquare(tile);
00826 DoClearSquare(endtile);
00827
00828
00829 AddSideToSignalBuffer(tile, ReverseDiagDir(dir), owner);
00830 AddSideToSignalBuffer(endtile, dir, owner);
00831
00832 YapfNotifyTrackLayoutChange(tile, track);
00833 YapfNotifyTrackLayoutChange(endtile, track);
00834
00835 if (v != NULL) TryPathReserve(v);
00836 } else {
00837 DoClearSquare(tile);
00838 DoClearSquare(endtile);
00839 }
00840 }
00841 return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_CLEAR_TUNNEL] * (GetTunnelBridgeLength(tile, endtile) + 2));
00842 }
00843
00844
00851 static CommandCost DoClearBridge(TileIndex tile, DoCommandFlag flags)
00852 {
00853 CommandCost ret = CheckAllowRemoveTunnelBridge(tile);
00854 if (ret.Failed()) return ret;
00855
00856 TileIndex endtile = GetOtherBridgeEnd(tile);
00857
00858 ret = TunnelBridgeIsFree(tile, endtile);
00859 if (ret.Failed()) return ret;
00860
00861 DiagDirection direction = GetTunnelBridgeDirection(tile);
00862 TileIndexDiff delta = TileOffsByDiagDir(direction);
00863
00864 Town *t = NULL;
00865 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00866 t = ClosestTownFromTile(tile, UINT_MAX);
00867
00868
00869
00870 CommandCost ret = CheckforTownRating(flags, t, TUNNELBRIDGE_REMOVE);
00871 if (ret.Failed()) return ret;
00872 }
00873
00874
00875
00876 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00877 ChangeTownRating(t, RATING_TUNNEL_BRIDGE_DOWN_STEP, RATING_TUNNEL_BRIDGE_MINIMUM, flags);
00878 }
00879
00880 Money base_cost = (GetTunnelBridgeTransportType(tile) != TRANSPORT_WATER) ? _price[PR_CLEAR_BRIDGE] : _price[PR_CLEAR_AQUEDUCT];
00881
00882 if (flags & DC_EXEC) {
00883
00884 bool rail = GetTunnelBridgeTransportType(tile) == TRANSPORT_RAIL;
00885 Owner owner = GetTileOwner(tile);
00886 uint height = GetBridgeHeight(tile);
00887 Train *v = NULL;
00888
00889 if (rail && HasTunnelBridgeReservation(tile)) {
00890 v = GetTrainForReservation(tile, DiagDirToDiagTrack(direction));
00891 if (v != NULL) FreeTrainTrackReservation(v);
00892 }
00893
00894 DoClearSquare(tile);
00895 DoClearSquare(endtile);
00896 for (TileIndex c = tile + delta; c != endtile; c += delta) {
00897
00898 if (IsNormalRoadTile(c) && GetRoadside(c) == ROADSIDE_TREES) {
00899 uint minz = GetTileMaxZ(c) + 3 * TILE_HEIGHT;
00900 if (height < minz) SetRoadside(c, ROADSIDE_PAVED);
00901 }
00902 ClearBridgeMiddle(c);
00903 MarkTileDirtyByTile(c);
00904 }
00905
00906 if (rail) {
00907
00908 AddSideToSignalBuffer(tile, ReverseDiagDir(direction), owner);
00909 AddSideToSignalBuffer(endtile, direction, owner);
00910
00911 Track track = DiagDirToDiagTrack(direction);
00912 YapfNotifyTrackLayoutChange(tile, track);
00913 YapfNotifyTrackLayoutChange(endtile, track);
00914
00915 if (v != NULL) TryPathReserve(v, true);
00916 }
00917 }
00918
00919 return CommandCost(EXPENSES_CONSTRUCTION, (GetTunnelBridgeLength(tile, endtile) + 2) * base_cost);
00920 }
00921
00928 static CommandCost ClearTile_TunnelBridge(TileIndex tile, DoCommandFlag flags)
00929 {
00930 if (IsTunnel(tile)) {
00931 if (flags & DC_AUTO) return_cmd_error(STR_ERROR_MUST_DEMOLISH_TUNNEL_FIRST);
00932 return DoClearTunnel(tile, flags);
00933 } else {
00934 if (flags & DC_AUTO) return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00935 return DoClearBridge(tile, flags);
00936 }
00937 }
00938
00949 static inline void DrawPillar(const PalSpriteID *psid, int x, int y, int z, int w, int h, const SubSprite *subsprite)
00950 {
00951 static const int PILLAR_Z_OFFSET = TILE_HEIGHT - BRIDGE_Z_START;
00952 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);
00953 }
00954
00966 static int DrawPillarColumn(int z_bottom, int z_top, const PalSpriteID *psid, int x, int y, int w, int h)
00967 {
00968 int cur_z;
00969 for (cur_z = z_top; cur_z >= z_bottom; cur_z -= TILE_HEIGHT) {
00970 DrawPillar(psid, x, y, cur_z, w, h, NULL);
00971 }
00972 return cur_z;
00973 }
00974
00986 static void DrawBridgePillars(const PalSpriteID *psid, const TileInfo *ti, Axis axis, bool drawfarpillar, int x, int y, int z_bridge)
00987 {
00988 static const int bounding_box_size[2] = {16, 2};
00989 static const int back_pillar_offset[2] = { 0, 9};
00990
00991 static const int INF = 1000;
00992 static const SubSprite half_pillar_sub_sprite[2][2] = {
00993 { { -14, -INF, INF, INF }, { -INF, -INF, -15, INF } },
00994 { { -INF, -INF, 15, INF }, { 16, -INF, INF, INF } },
00995 };
00996
00997 if (psid->sprite == 0) return;
00998
00999
01000 DiagDirection south_dir = AxisToDiagDir(axis);
01001 int z_front_north = ti->z;
01002 int z_back_north = ti->z;
01003 int z_front_south = ti->z;
01004 int z_back_south = ti->z;
01005 GetSlopeZOnEdge(ti->tileh, south_dir, &z_front_south, &z_back_south);
01006 GetSlopeZOnEdge(ti->tileh, ReverseDiagDir(south_dir), &z_front_north, &z_back_north);
01007
01008
01009 int z_front = max(z_front_north, z_front_south);
01010 int z_back = max(z_back_north, z_back_south);
01011
01012
01013 int w = bounding_box_size[axis];
01014 int h = bounding_box_size[OtherAxis(axis)];
01015
01016 int x_back = x - back_pillar_offset[axis];
01017 int y_back = y - back_pillar_offset[OtherAxis(axis)];
01018
01019
01020 int bottom_z = DrawPillarColumn(z_front, z_bridge, psid, x, y, w, h);
01021 if (z_front_north < z_front) DrawPillar(psid, x, y, bottom_z, w, h, &half_pillar_sub_sprite[axis][0]);
01022 if (z_front_south < z_front) DrawPillar(psid, x, y, bottom_z, w, h, &half_pillar_sub_sprite[axis][1]);
01023
01024
01025 int z_bridge_back = z_bridge - 2 * (int)TILE_HEIGHT;
01026 if (drawfarpillar && (z_back_north <= z_bridge_back || z_back_south <= z_bridge_back)) {
01027 bottom_z = DrawPillarColumn(z_back, z_bridge_back, psid, x_back, y_back, w, h);
01028 if (z_back_north < z_back) DrawPillar(psid, x_back, y_back, bottom_z, w, h, &half_pillar_sub_sprite[axis][0]);
01029 if (z_back_south < z_back) DrawPillar(psid, x_back, y_back, bottom_z, w, h, &half_pillar_sub_sprite[axis][1]);
01030 }
01031 }
01032
01042 static void DrawBridgeTramBits(int x, int y, int z, int offset, bool overlay, bool head)
01043 {
01044 static const SpriteID tram_offsets[2][6] = { { 107, 108, 109, 110, 111, 112 }, { 4, 5, 15, 16, 17, 18 } };
01045 static const SpriteID back_offsets[6] = { 95, 96, 99, 102, 100, 101 };
01046 static const SpriteID front_offsets[6] = { 97, 98, 103, 106, 104, 105 };
01047
01048 static const uint size_x[6] = { 1, 16, 16, 1, 16, 1 };
01049 static const uint size_y[6] = { 16, 1, 1, 16, 1, 16 };
01050 static const uint front_bb_offset_x[6] = { 15, 0, 0, 15, 0, 15 };
01051 static const uint front_bb_offset_y[6] = { 0, 15, 15, 0, 15, 0 };
01052
01053
01054
01055 if (head || !IsInvisibilitySet(TO_BRIDGES)) {
01056 AddSortableSpriteToDraw(SPR_TRAMWAY_BASE + tram_offsets[overlay][offset], PAL_NONE,
01057 x, y, size_x[offset], size_y[offset], 0x28, z,
01058 !head && IsTransparencySet(TO_BRIDGES));
01059 }
01060
01061
01062 if (!IsInvisibilitySet(TO_CATENARY)) {
01063 AddSortableSpriteToDraw(SPR_TRAMWAY_BASE + back_offsets[offset], PAL_NONE,
01064 x, y, size_x[offset], size_y[offset], 0x28, z,
01065 IsTransparencySet(TO_CATENARY));
01066 }
01067
01068
01069 EndSpriteCombine();
01070 StartSpriteCombine();
01071
01072
01073 if (!IsInvisibilitySet(TO_CATENARY)) {
01074 AddSortableSpriteToDraw(SPR_TRAMWAY_BASE + front_offsets[offset], PAL_NONE,
01075 x, y, size_x[offset] + front_bb_offset_x[offset], size_y[offset] + front_bb_offset_y[offset], 0x28, z,
01076 IsTransparencySet(TO_CATENARY), front_bb_offset_x[offset], front_bb_offset_y[offset]);
01077 }
01078 }
01079
01081 static void DrawTunnelBridgeRampSignal(const TileInfo *ti)
01082 {
01083 bool side = (_settings_game.vehicle.road_side != 0) &&_settings_game.construction.signal_side;
01084
01085 static const Point SignalPositions[2][4] = {
01086 {
01087 {13, 3}, { 2, 13}, { 3, 4}, {13, 14}
01088 }, {
01089 {14, 13}, { 3, 3}, {13, 2}, { 3, 13}
01090 }
01091 };
01092
01093 uint position;
01094 DiagDirection dir = GetTunnelBridgeDirection(ti->tile);
01095 if (IsTunnelBridgeExit(ti->tile)) dir = ReverseDiagDir(dir);
01096
01097 switch (dir) {
01098 default: NOT_REACHED();
01099 case DIAGDIR_NE: position = 0; break;
01100 case DIAGDIR_SE: position = 2; break;
01101 case DIAGDIR_SW: position = 1; break;
01102 case DIAGDIR_NW: position = 3; break;
01103 }
01104
01105 uint x = ti->x + SignalPositions[side][position].x;
01106 uint y = ti->y + SignalPositions[side][position].y;
01107 uint z = ti->z;
01108 if (ti->tileh != SLOPE_FLAT && IsBridge(ti->tile)) z += 8;
01109 SignalVariant variant = (_cur_year < _settings_client.gui.semaphore_build_before ? SIG_SEMAPHORE : SIG_ELECTRIC);
01110
01111 SpriteID sprite;
01112 if (variant == SIG_ELECTRIC) {
01113
01114 sprite = SPR_ORIGINAL_SIGNALS_BASE + ((position << 1) + IsTunnelBridgeWithSignGreen(ti->tile));
01115 } else {
01116
01117 sprite = SPR_SIGNALS_BASE + ((SIGTYPE_NORMAL - 1) * 16 + variant * 64 + (position << 1) + IsTunnelBridgeWithSignGreen(ti->tile));
01118 }
01119
01120 AddSortableSpriteToDraw(sprite, PAL_NONE, x, y, 1, 1, TILE_HEIGHT, z, false, 0, 0, BB_Z_SEPARATOR);
01121 }
01122
01123
01124 static void DrawBrigeSignalOnMiddelPart(const TileInfo *ti, TileIndex bridge_start_tile, uint z)
01125 {
01126
01127 uint bridge_signal_position = 0;
01128 int m2_position = 0;
01129
01130 uint bridge_section = GetTunnelBridgeLength(ti->tile, bridge_start_tile) + 1;
01131
01132 while (bridge_signal_position <= bridge_section) {
01133 bridge_signal_position += 4;
01134 if (bridge_signal_position == bridge_section) {
01135 bool side = (_settings_game.vehicle.road_side != 0) && _settings_game.construction.signal_side;
01136
01137 static const Point SignalPositions[2][4] = {
01138 {
01139 {13, 3}, { 2, 13}, { 3, 4}, {13, 14}
01140 }, {
01141 {10, 13}, { 4, 3}, {13, 2}, { 3, 3}
01142 }
01143 };
01144 uint position;
01145
01146 switch (GetTunnelBridgeDirection(bridge_start_tile)) {
01147 default: NOT_REACHED();
01148 case DIAGDIR_NE: position = 0; z += 8; break;
01149 case DIAGDIR_SE: position = 2; z += 8; break;
01150 case DIAGDIR_SW: position = 1; break;
01151 case DIAGDIR_NW: position = 3; break;
01152 }
01153
01154
01155 uint x = ti->x + SignalPositions[side][position].x;
01156 uint y = ti->y + SignalPositions[side][position].y;
01157
01158 SignalVariant variant = (_cur_year < _settings_client.gui.semaphore_build_before ? SIG_SEMAPHORE : SIG_ELECTRIC);
01159
01160 SpriteID sprite;
01161 if (variant == SIG_ELECTRIC) {
01162
01163 sprite = SPR_ORIGINAL_SIGNALS_BASE + ((position << 1) + !HasBit(_m[bridge_start_tile].m2, m2_position));
01164 } else {
01165
01166 sprite = SPR_SIGNALS_BASE + ((SIGTYPE_NORMAL - 1) * 16 + variant * 64 + (position << 1) + !HasBit(_m[bridge_start_tile].m2, m2_position));
01167 }
01168
01169 AddSortableSpriteToDraw(sprite, PAL_NONE, x, y, 1, 1, TILE_HEIGHT, z, false, 0, 0, BB_Z_SEPARATOR);
01170 }
01171 m2_position++;
01172 }
01173 }
01174
01188 static void DrawTile_TunnelBridge(TileInfo *ti)
01189 {
01190 TransportType transport_type = GetTunnelBridgeTransportType(ti->tile);
01191 DiagDirection tunnelbridge_direction = GetTunnelBridgeDirection(ti->tile);
01192
01193 if (IsTunnel(ti->tile)) {
01194
01195
01196
01197
01198
01199
01200
01201
01202
01203 static const int _tunnel_BB[4][12] = {
01204
01205
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 { 1, 0, -15, -14, 0, 15, 16, 1, 0, 1, 16, 15 },
01209 { 0, 1, -14, -15, 15, 0, 1, 16, 1, 0, 15, 16 },
01210 };
01211 const int *BB_data = _tunnel_BB[tunnelbridge_direction];
01212
01213 bool catenary = false;
01214
01215 SpriteID image;
01216 if (transport_type == TRANSPORT_RAIL) {
01217 image = GetRailTypeInfo(GetRailType(ti->tile))->base_sprites.tunnel;
01218 } else {
01219 image = SPR_TUNNEL_ENTRY_REAR_ROAD;
01220 }
01221
01222 if (HasTunnelBridgeSnowOrDesert(ti->tile)) image += 32;
01223
01224 image += tunnelbridge_direction * 2;
01225 DrawGroundSprite(image, PAL_NONE);
01226
01227
01228 if (_game_mode != GM_MENU && _settings_client.gui.show_track_reservation && (transport_type == TRANSPORT_RAIL && HasTunnelBridgeReservation(ti->tile))) {
01229 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(ti->tile));
01230 DrawGroundSprite(DiagDirToAxis(tunnelbridge_direction) == AXIS_X ? rti->base_sprites.single_x : rti->base_sprites.single_y, PALETTE_CRASH);
01231 }
01232
01233 if (transport_type == TRANSPORT_ROAD) {
01234 RoadTypes rts = GetRoadTypes(ti->tile);
01235
01236 if (HasBit(rts, ROADTYPE_TRAM)) {
01237 static const SpriteID tunnel_sprites[2][4] = { { 28, 78, 79, 27 }, { 5, 76, 77, 4 } };
01238
01239 DrawGroundSprite(SPR_TRAMWAY_BASE + tunnel_sprites[rts - ROADTYPES_TRAM][tunnelbridge_direction], PAL_NONE);
01240
01241
01242 if (!IsInvisibilitySet(TO_CATENARY)) {
01243 catenary = true;
01244 StartSpriteCombine();
01245 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);
01246 }
01247 }
01248 } else {
01249 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(ti->tile));
01250 if (rti->UsesOverlay()) {
01251 SpriteID surface = GetCustomRailSprite(rti, ti->tile, RTSG_TUNNEL);
01252 if (surface != 0) DrawGroundSprite(surface + tunnelbridge_direction, PAL_NONE);
01253 }
01254
01255 if (HasCatenaryDrawn(GetRailType(ti->tile))) {
01256
01257 DrawCatenary(ti);
01258
01259 catenary = true;
01260 StartSpriteCombine();
01261
01262 DrawCatenaryOnTunnel(ti);
01263 }
01264 }
01265
01266 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);
01267
01268 if (catenary) EndSpriteCombine();
01269
01270
01271 AddSortableSpriteToDraw(SPR_EMPTY_BOUNDING_BOX, PAL_NONE, ti->x, ti->y, BB_data[6], BB_data[7], TILE_HEIGHT, ti->z);
01272 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);
01273
01274
01275 if (IsTunnelBridgeEntrance(ti->tile)) DrawTunnelBridgeRampSignal(ti);
01276
01277 DrawBridgeMiddle(ti);
01278 } else {
01279 const PalSpriteID *psid;
01280 int base_offset;
01281 bool ice = HasTunnelBridgeSnowOrDesert(ti->tile);
01282
01283 if (transport_type == TRANSPORT_RAIL) {
01284 base_offset = GetRailTypeInfo(GetRailType(ti->tile))->bridge_offset;
01285 assert(base_offset != 8);
01286 } else {
01287 base_offset = 8;
01288 }
01289
01290
01291 assert( (base_offset & 0x07) == 0x00);
01292
01293 DrawFoundation(ti, GetBridgeFoundation(ti->tileh, DiagDirToAxis(tunnelbridge_direction)));
01294
01295
01296 base_offset += (6 - tunnelbridge_direction) % 4;
01297
01298 if (ti->tileh == SLOPE_FLAT) base_offset += 4;
01299
01300
01301 if (transport_type != TRANSPORT_WATER) {
01302 psid = &GetBridgeSpriteTable(GetBridgeType(ti->tile), BRIDGE_PIECE_HEAD)[base_offset];
01303 } else {
01304 psid = _aqueduct_sprites + base_offset;
01305 }
01306
01307 if (!ice) {
01308 TileIndex next = ti->tile + TileOffsByDiagDir(tunnelbridge_direction);
01309 if (ti->tileh != SLOPE_FLAT && ti->z == 0 && HasTileWaterClass(next) && GetWaterClass(next) == WATER_CLASS_SEA) {
01310 DrawShoreTile(ti->tileh);
01311 } else {
01312 DrawClearLandTile(ti, 3);
01313 }
01314 } else {
01315 DrawGroundSprite(SPR_FLAT_SNOW_DESERT_TILE + SlopeToSpriteOffset(ti->tileh), PAL_NONE);
01316 }
01317
01318
01319
01320
01321 if (transport_type == TRANSPORT_ROAD || transport_type == TRANSPORT_RAIL) StartSpriteCombine();
01322
01323
01324
01325
01326
01327 AddSortableSpriteToDraw(psid->sprite, psid->pal, ti->x, ti->y, 16, 16, ti->tileh == SLOPE_FLAT ? 0 : 8, ti->z);
01328
01329 if (transport_type == TRANSPORT_ROAD) {
01330 RoadTypes rts = GetRoadTypes(ti->tile);
01331
01332 if (HasBit(rts, ROADTYPE_TRAM)) {
01333 uint offset = tunnelbridge_direction;
01334 uint z = ti->z;
01335 if (ti->tileh != SLOPE_FLAT) {
01336 offset = (offset + 1) & 1;
01337 z += TILE_HEIGHT;
01338 } else {
01339 offset += 2;
01340 }
01341
01342 DrawBridgeTramBits(ti->x, ti->y, z, offset, HasBit(rts, ROADTYPE_ROAD), true);
01343 }
01344 EndSpriteCombine();
01345 } else if (transport_type == TRANSPORT_RAIL) {
01346 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(ti->tile));
01347 if (rti->UsesOverlay()) {
01348 SpriteID surface = GetCustomRailSprite(rti, ti->tile, RTSG_BRIDGE);
01349 if (surface != 0) {
01350 if (HasBridgeFlatRamp(ti->tileh, DiagDirToAxis(tunnelbridge_direction))) {
01351 AddSortableSpriteToDraw(surface + ((DiagDirToAxis(tunnelbridge_direction) == AXIS_X) ? RTBO_X : RTBO_Y), PAL_NONE, ti->x, ti->y, 16, 16, 0, ti->z + 8);
01352 } else {
01353 AddSortableSpriteToDraw(surface + RTBO_SLOPE + tunnelbridge_direction, PAL_NONE, ti->x, ti->y, 16, 16, 8, ti->z);
01354 }
01355 }
01356
01357
01358
01359 } else if (_game_mode != GM_MENU &&_settings_client.gui.show_track_reservation && HasTunnelBridgeReservation(ti->tile)) {
01360 if (HasBridgeFlatRamp(ti->tileh, DiagDirToAxis(tunnelbridge_direction))) {
01361 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);
01362 } else {
01363 AddSortableSpriteToDraw(rti->base_sprites.single_sloped + tunnelbridge_direction, PALETTE_CRASH, ti->x, ti->y, 16, 16, 8, ti->z);
01364 }
01365 }
01366 EndSpriteCombine();
01367 if (HasCatenaryDrawn(GetRailType(ti->tile))) {
01368 DrawCatenary(ti);
01369 }
01370 }
01371
01372 if (HasWormholeSignals(ti->tile)) DrawTunnelBridgeRampSignal(ti);
01373
01374 DrawBridgeMiddle(ti);
01375 }
01376 }
01377
01396 static BridgePieces CalcBridgePiece(uint north, uint south)
01397 {
01398 if (north == 1) {
01399 return BRIDGE_PIECE_NORTH;
01400 } else if (south == 1) {
01401 return BRIDGE_PIECE_SOUTH;
01402 } else if (north < south) {
01403 return north & 1 ? BRIDGE_PIECE_INNER_SOUTH : BRIDGE_PIECE_INNER_NORTH;
01404 } else if (north > south) {
01405 return south & 1 ? BRIDGE_PIECE_INNER_NORTH : BRIDGE_PIECE_INNER_SOUTH;
01406 } else {
01407 return north & 1 ? BRIDGE_PIECE_MIDDLE_EVEN : BRIDGE_PIECE_MIDDLE_ODD;
01408 }
01409 }
01410
01415 void DrawBridgeMiddle(const TileInfo *ti)
01416 {
01417
01418
01419
01420
01421
01422
01423
01424
01425
01426
01427
01428
01429
01430
01431
01432
01433 if (!IsBridgeAbove(ti->tile)) return;
01434
01435 TileIndex rampnorth = GetNorthernBridgeEnd(ti->tile);
01436 TileIndex rampsouth = GetSouthernBridgeEnd(ti->tile);
01437 TransportType transport_type = GetTunnelBridgeTransportType(rampsouth);
01438
01439 Axis axis = GetBridgeAxis(ti->tile);
01440 BridgePieces piece = CalcBridgePiece(
01441 GetTunnelBridgeLength(ti->tile, rampnorth) + 1,
01442 GetTunnelBridgeLength(ti->tile, rampsouth) + 1
01443 );
01444
01445 const PalSpriteID *psid;
01446 bool drawfarpillar;
01447 if (transport_type != TRANSPORT_WATER) {
01448 BridgeType type = GetBridgeType(rampsouth);
01449 drawfarpillar = !HasBit(GetBridgeSpec(type)->flags, 0);
01450
01451 uint base_offset;
01452 if (transport_type == TRANSPORT_RAIL) {
01453 base_offset = GetRailTypeInfo(GetRailType(rampsouth))->bridge_offset;
01454 } else {
01455 base_offset = 8;
01456 }
01457
01458 psid = base_offset + GetBridgeSpriteTable(type, piece);
01459 } else {
01460 drawfarpillar = true;
01461 psid = _aqueduct_sprites;
01462 }
01463
01464 if (axis != AXIS_X) psid += 4;
01465
01466 int x = ti->x;
01467 int y = ti->y;
01468 uint bridge_z = GetBridgeHeight(rampsouth);
01469 uint z = bridge_z - BRIDGE_Z_START;
01470
01471
01472 AddSortableSpriteToDraw(SPR_EMPTY_BOUNDING_BOX, PAL_NONE, x, y, 16, 16, 1, bridge_z - TILE_HEIGHT + BB_Z_SEPARATOR);
01473
01474
01475 if (transport_type == TRANSPORT_ROAD || transport_type == TRANSPORT_RAIL) StartSpriteCombine();
01476
01477
01478 if (!IsInvisibilitySet(TO_BRIDGES)) {
01479 if (axis == AXIS_X) {
01480 AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 16, 1, 0x28, z, IsTransparencySet(TO_BRIDGES), 0, 0, BRIDGE_Z_START);
01481 } else {
01482 AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 1, 16, 0x28, z, IsTransparencySet(TO_BRIDGES), 0, 0, BRIDGE_Z_START);
01483 }
01484 }
01485
01486 psid++;
01487
01488 if (transport_type == TRANSPORT_ROAD) {
01489 RoadTypes rts = GetRoadTypes(rampsouth);
01490
01491 if (HasBit(rts, ROADTYPE_TRAM)) {
01492
01493 DrawBridgeTramBits(x, y, bridge_z, axis ^ 1, HasBit(rts, ROADTYPE_ROAD), false);
01494 } else {
01495 EndSpriteCombine();
01496 StartSpriteCombine();
01497 }
01498 } else if (transport_type == TRANSPORT_RAIL) {
01499 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(rampsouth));
01500 if (rti->UsesOverlay()) {
01501 SpriteID surface = GetCustomRailSprite(rti, rampsouth, RTSG_BRIDGE, TCX_ON_BRIDGE);
01502 if (surface != 0) {
01503 AddSortableSpriteToDraw(surface + axis, PAL_NONE, x, y, 16, 16, 0, bridge_z, IsTransparencySet(TO_BRIDGES));
01504 }
01505 }
01506 EndSpriteCombine();
01507
01508 if (HasCatenaryDrawn(GetRailType(rampsouth))) {
01509 DrawCatenaryOnBridge(ti);
01510 }
01511
01512 if (HasWormholeSignals(rampsouth)) {
01513 IsTunnelBridgeExit(rampsouth) ? DrawBrigeSignalOnMiddelPart(ti, rampnorth, z): DrawBrigeSignalOnMiddelPart(ti, rampsouth, z);
01514 }
01515 }
01516
01517
01518 if (!IsInvisibilitySet(TO_BRIDGES)) {
01519 if (axis == AXIS_X) {
01520 y += 12;
01521 if (psid->sprite & SPRITE_MASK) AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 16, 4, 0x28, z, IsTransparencySet(TO_BRIDGES), 0, 3, BRIDGE_Z_START);
01522 } else {
01523 x += 12;
01524 if (psid->sprite & SPRITE_MASK) AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 4, 16, 0x28, z, IsTransparencySet(TO_BRIDGES), 3, 0, BRIDGE_Z_START);
01525 }
01526 }
01527
01528
01529 if (transport_type == TRANSPORT_ROAD) EndSpriteCombine();
01530
01531
01532 if (IsInvisibilitySet(TO_BRIDGES)) return;
01533
01534 psid++;
01535 if (ti->z + 5 == z) {
01536
01537 if (psid->sprite != 0) {
01538 SpriteID image = psid->sprite;
01539 SpriteID pal = psid->pal;
01540 if (IsTransparencySet(TO_BRIDGES)) {
01541 SetBit(image, PALETTE_MODIFIER_TRANSPARENT);
01542 pal = PALETTE_TO_TRANSPARENT;
01543 }
01544
01545 DrawGroundSpriteAt(image, pal, x - ti->x, y - ti->y, z - ti->z);
01546 }
01547 } else if (_settings_client.gui.bridge_pillars) {
01548
01549 DrawBridgePillars(psid, ti, axis, drawfarpillar, x, y, z);
01550 }
01551 }
01552
01553
01554 static uint GetSlopeZ_TunnelBridge(TileIndex tile, uint x, uint y)
01555 {
01556 uint z;
01557 Slope tileh = GetTileSlope(tile, &z);
01558
01559 x &= 0xF;
01560 y &= 0xF;
01561
01562 if (IsTunnel(tile)) {
01563 uint pos = (DiagDirToAxis(GetTunnelBridgeDirection(tile)) == AXIS_X ? y : x);
01564
01565
01566 if (5 <= pos && pos <= 10) return z;
01567 } else {
01568 DiagDirection dir = GetTunnelBridgeDirection(tile);
01569 uint pos = (DiagDirToAxis(dir) == AXIS_X ? y : x);
01570
01571 z += ApplyFoundationToSlope(GetBridgeFoundation(tileh, DiagDirToAxis(dir)), &tileh);
01572
01573
01574 if (5 <= pos && pos <= 10) {
01575 uint delta;
01576
01577 if (tileh != SLOPE_FLAT) return z + TILE_HEIGHT;
01578
01579 switch (dir) {
01580 default: NOT_REACHED();
01581 case DIAGDIR_NE: delta = (TILE_SIZE - 1 - x) / 2; break;
01582 case DIAGDIR_SE: delta = y / 2; break;
01583 case DIAGDIR_SW: delta = x / 2; break;
01584 case DIAGDIR_NW: delta = (TILE_SIZE - 1 - y) / 2; break;
01585 }
01586 return z + 1 + delta;
01587 }
01588 }
01589
01590 return z + GetPartialZ(x, y, tileh);
01591 }
01592
01593 static Foundation GetFoundation_TunnelBridge(TileIndex tile, Slope tileh)
01594 {
01595 return IsTunnel(tile) ? FOUNDATION_NONE : GetBridgeFoundation(tileh, DiagDirToAxis(GetTunnelBridgeDirection(tile)));
01596 }
01597
01598 static void GetTileDesc_TunnelBridge(TileIndex tile, TileDesc *td)
01599 {
01600 TransportType tt = GetTunnelBridgeTransportType(tile);
01601
01602 if (IsTunnel(tile)) {
01603 td->str = (tt == TRANSPORT_RAIL) ? HasWormholeSignals(tile) ? STR_LAI_TUNNEL_DESCRIPTION_RAILROAD_SIGNAL : STR_LAI_TUNNEL_DESCRIPTION_RAILROAD : STR_LAI_TUNNEL_DESCRIPTION_ROAD;
01604 } else {
01605 td->str = (tt == TRANSPORT_WATER) ? STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT : HasWormholeSignals(tile) ? STR_LAI_BRIDGE_DESCRIPTION_RAILROAD_SIGNAL : GetBridgeSpec(GetBridgeType(tile))->transport_name[tt];
01606 }
01607 td->owner[0] = GetTileOwner(tile);
01608
01609 Owner road_owner = INVALID_OWNER;
01610 Owner tram_owner = INVALID_OWNER;
01611 RoadTypes rts = GetRoadTypes(tile);
01612 if (HasBit(rts, ROADTYPE_ROAD)) road_owner = GetRoadOwner(tile, ROADTYPE_ROAD);
01613 if (HasBit(rts, ROADTYPE_TRAM)) tram_owner = GetRoadOwner(tile, ROADTYPE_TRAM);
01614
01615
01616 if ((tram_owner != INVALID_OWNER && tram_owner != td->owner[0]) ||
01617 (road_owner != INVALID_OWNER && road_owner != td->owner[0])) {
01618 uint i = 1;
01619 if (road_owner != INVALID_OWNER) {
01620 td->owner_type[i] = STR_LAND_AREA_INFORMATION_ROAD_OWNER;
01621 td->owner[i] = road_owner;
01622 i++;
01623 }
01624 if (tram_owner != INVALID_OWNER) {
01625 td->owner_type[i] = STR_LAND_AREA_INFORMATION_TRAM_OWNER;
01626 td->owner[i] = tram_owner;
01627 }
01628 }
01629
01630 if (tt == TRANSPORT_RAIL) {
01631 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(tile));
01632 td->rail_speed = rti->max_speed;
01633
01634 if (!IsTunnel(tile)) {
01635 uint16 spd = GetBridgeSpec(GetBridgeType(tile))->speed;
01636 if (td->rail_speed == 0 || spd < td->rail_speed) {
01637 td->rail_speed = spd;
01638 }
01639 }
01640 }
01641 }
01642
01643
01644 static void TileLoop_TunnelBridge(TileIndex tile)
01645 {
01646 bool snow_or_desert = HasTunnelBridgeSnowOrDesert(tile);
01647 switch (_settings_game.game_creation.landscape) {
01648 case LT_ARCTIC: {
01649
01650
01651
01652 uint z = IsBridge(tile) ? GetTileMaxZ(tile) : GetTileZ(tile);
01653 if (snow_or_desert != (z > GetSnowLine())) {
01654 SetTunnelBridgeSnowOrDesert(tile, !snow_or_desert);
01655 MarkTileDirtyByTile(tile);
01656 }
01657 break;
01658 }
01659
01660 case LT_TROPIC:
01661 if (GetTropicZone(tile) == TROPICZONE_DESERT && !snow_or_desert) {
01662 SetTunnelBridgeSnowOrDesert(tile, true);
01663 MarkTileDirtyByTile(tile);
01664 }
01665 break;
01666
01667 default:
01668 break;
01669 }
01670 }
01671
01672 static bool ClickTile_TunnelBridge(TileIndex tile)
01673 {
01674
01675 if (IsTunnelTile(tile)) {
01676 int count = 0;
01677 const Train *t;
01678 TileIndex tile_end = GetOtherTunnelBridgeEnd(tile);
01679 FOR_ALL_TRAINS(t) {
01680 if (!t->IsFrontEngine()) continue;
01681 if (tile == t->tile || tile_end == t->tile) {
01682 ShowVehicleViewWindow(t);
01683 count++;
01684 }
01685 if (count > 19) break;
01686 }
01687 if (count > 0) return true;
01688 }
01689 return false;
01690 }
01691
01692 static TrackStatus GetTileTrackStatus_TunnelBridge(TileIndex tile, TransportType mode, uint sub_mode, DiagDirection side)
01693 {
01694 TransportType transport_type = GetTunnelBridgeTransportType(tile);
01695 if (transport_type != mode || (transport_type == TRANSPORT_ROAD && (GetRoadTypes(tile) & sub_mode) == 0)) return 0;
01696
01697 DiagDirection dir = GetTunnelBridgeDirection(tile);
01698 if (side != INVALID_DIAGDIR && side != ReverseDiagDir(dir)) return 0;
01699 return CombineTrackStatus(TrackBitsToTrackdirBits(DiagDirToDiagTrackBits(dir)), TRACKDIR_BIT_NONE);
01700 }
01701
01702 static void ChangeTileOwner_TunnelBridge(TileIndex tile, Owner old_owner, Owner new_owner)
01703 {
01704 for (RoadType rt = ROADTYPE_ROAD; rt < ROADTYPE_END; rt++) {
01705
01706 if (GetRoadOwner(tile, rt) == old_owner) {
01707 SetRoadOwner(tile, rt, new_owner == INVALID_OWNER ? OWNER_NONE : new_owner);
01708 }
01709 }
01710
01711 if (!IsTileOwner(tile, old_owner)) return;
01712
01713 if (new_owner != INVALID_OWNER) {
01714 SetTileOwner(tile, new_owner);
01715 } else {
01716 if (GetTunnelBridgeTransportType(tile) == TRANSPORT_RAIL) {
01717
01718
01719 CommandCost ret = DoCommand(tile, 0, 0, DC_EXEC | DC_BANKRUPT, CMD_LANDSCAPE_CLEAR);
01720 assert(ret.Succeeded());
01721 } else {
01722
01723 SetTileOwner(tile, OWNER_NONE);
01724 }
01725 }
01726 }
01727
01733 static const byte TUNNEL_SOUND_FRAME = 1;
01734
01743 extern const byte _tunnel_visibility_frame[DIAGDIR_END] = {12, 8, 8, 12};
01744
01745 static VehicleEnterTileStatus VehicleEnter_TunnelBridge(Vehicle *v, TileIndex tile, int x, int y)
01746 {
01747 int z = GetSlopeZ(x, y) - v->z_pos;
01748
01749 if (abs(z) > 2) return VETSB_CANNOT_ENTER;
01750
01751 const DiagDirection dir = GetTunnelBridgeDirection(tile);
01752
01753 const DiagDirection vdir = DirToDiagDir(v->direction);
01754
01755 byte pos = (DiagDirToAxis(vdir) == AXIS_X ? x : y) & TILE_UNIT_MASK;
01756
01757 byte frame = (vdir == DIAGDIR_NE || vdir == DIAGDIR_NW) ? TILE_SIZE - 1 - pos : pos;
01758
01759 if (IsTunnel(tile)) {
01760 if (v->type == VEH_TRAIN) {
01761 Train *t = Train::From(v);
01762
01763 if (t->track != TRACK_BIT_WORMHOLE && dir == vdir) {
01764 if (t->IsFrontEngine() && frame == TUNNEL_SOUND_FRAME) {
01765 if (!PlayVehicleSound(t, VSE_TUNNEL) && RailVehInfo(t->engine_type)->engclass == 0) {
01766 SndPlayVehicleFx(SND_05_TRAIN_THROUGH_TUNNEL, v);
01767 }
01768 return VETSB_CONTINUE;
01769 }
01770 if (frame == _tunnel_visibility_frame[dir]) {
01771 t->tile = tile;
01772 t->track = TRACK_BIT_WORMHOLE;
01773 t->vehstatus |= VS_HIDDEN;
01774 return VETSB_ENTERED_WORMHOLE;
01775 }
01776 }
01777
01778 if (dir == ReverseDiagDir(vdir) && frame == TILE_SIZE - _tunnel_visibility_frame[dir] && z == 0) {
01779
01780 t->tile = tile;
01781 t->track = DiagDirToDiagTrackBits(vdir);
01782 assert(t->track);
01783 t->vehstatus &= ~VS_HIDDEN;
01784 return VETSB_ENTERED_WORMHOLE;
01785 }
01786 } else if (v->type == VEH_ROAD) {
01787 RoadVehicle *rv = RoadVehicle::From(v);
01788
01789
01790 if (rv->state != RVSB_WORMHOLE && dir == vdir) {
01791 if (frame == _tunnel_visibility_frame[dir]) {
01792
01793 assert(frame == rv->frame + 1);
01794 rv->tile = tile;
01795 rv->state = RVSB_WORMHOLE;
01796 rv->vehstatus |= VS_HIDDEN;
01797 return VETSB_ENTERED_WORMHOLE;
01798 } else {
01799 return VETSB_CONTINUE;
01800 }
01801 }
01802
01803
01804 if (dir == ReverseDiagDir(vdir) && frame == TILE_SIZE - _tunnel_visibility_frame[dir] && z == 0) {
01805 rv->tile = tile;
01806 rv->state = DiagDirToDiagTrackdir(vdir);
01807 rv->frame = frame;
01808 rv->vehstatus &= ~VS_HIDDEN;
01809 return VETSB_ENTERED_WORMHOLE;
01810 }
01811 }
01812 } else {
01813 if (v->type != VEH_SHIP) {
01814
01815 uint16 spd = GetBridgeSpec(GetBridgeType(tile))->speed;
01816
01817 if (v->type == VEH_ROAD) spd *= 2;
01818 Vehicle *first = v->First();
01819 first->cur_speed = min(first->cur_speed, spd);
01820 }
01821
01822 if (vdir == dir) {
01823
01824 if (frame != TILE_SIZE - 1) return VETSB_CONTINUE;
01825 switch (v->type) {
01826 case VEH_TRAIN: {
01827 Train *t = Train::From(v);
01828 t->track = TRACK_BIT_WORMHOLE;
01829 ClrBit(t->gv_flags, GVF_GOINGUP_BIT);
01830 ClrBit(t->gv_flags, GVF_GOINGDOWN_BIT);
01831 break;
01832 }
01833
01834 case VEH_ROAD: {
01835 RoadVehicle *rv = RoadVehicle::From(v);
01836 rv->state = RVSB_WORMHOLE;
01837
01838 ClrBit(rv->gv_flags, GVF_GOINGUP_BIT);
01839 ClrBit(rv->gv_flags, GVF_GOINGDOWN_BIT);
01840 break;
01841 }
01842
01843 case VEH_SHIP:
01844 Ship::From(v)->state = TRACK_BIT_WORMHOLE;
01845 break;
01846
01847 default: NOT_REACHED();
01848 }
01849 return VETSB_ENTERED_WORMHOLE;
01850 } else if (vdir == ReverseDiagDir(dir)) {
01851 v->tile = tile;
01852 switch (v->type) {
01853 case VEH_TRAIN: {
01854 Train *t = Train::From(v);
01855 if (t->track == TRACK_BIT_WORMHOLE) {
01856 t->track = DiagDirToDiagTrackBits(vdir);
01857 return VETSB_ENTERED_WORMHOLE;
01858 }
01859 break;
01860 }
01861
01862 case VEH_ROAD: {
01863 RoadVehicle *rv = RoadVehicle::From(v);
01864 if (rv->state == RVSB_WORMHOLE) {
01865 rv->state = DiagDirToDiagTrackdir(vdir);
01866 rv->frame = 0;
01867 return VETSB_ENTERED_WORMHOLE;
01868 }
01869 break;
01870 }
01871
01872 case VEH_SHIP: {
01873 Ship *ship = Ship::From(v);
01874 if (ship->state == TRACK_BIT_WORMHOLE) {
01875 ship->state = DiagDirToDiagTrackBits(vdir);
01876 return VETSB_ENTERED_WORMHOLE;
01877 }
01878 break;
01879 }
01880
01881 default: NOT_REACHED();
01882 }
01883 }
01884 }
01885 return VETSB_CONTINUE;
01886 }
01887
01888 static CommandCost TerraformTile_TunnelBridge(TileIndex tile, DoCommandFlag flags, uint z_new, Slope tileh_new)
01889 {
01890 if (_settings_game.construction.build_on_slopes && AutoslopeEnabled() && IsBridge(tile) && GetTunnelBridgeTransportType(tile) != TRANSPORT_WATER) {
01891 DiagDirection direction = GetTunnelBridgeDirection(tile);
01892 Axis axis = DiagDirToAxis(direction);
01893 CommandCost res;
01894 uint z_old;
01895 Slope tileh_old = GetTileSlope(tile, &z_old);
01896
01897
01898 if ((direction == DIAGDIR_NW) || (direction == DIAGDIR_NE)) {
01899 CheckBridgeSlopeSouth(axis, &tileh_old, &z_old);
01900 res = CheckBridgeSlopeSouth(axis, &tileh_new, &z_new);
01901 } else {
01902 CheckBridgeSlopeNorth(axis, &tileh_old, &z_old);
01903 res = CheckBridgeSlopeNorth(axis, &tileh_new, &z_new);
01904 }
01905
01906
01907 if (res.Succeeded() && (z_old == z_new) && (tileh_old == tileh_new)) return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
01908 }
01909
01910 return DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
01911 }
01912
01913 extern const TileTypeProcs _tile_type_tunnelbridge_procs = {
01914 DrawTile_TunnelBridge,
01915 GetSlopeZ_TunnelBridge,
01916 ClearTile_TunnelBridge,
01917 NULL,
01918 GetTileDesc_TunnelBridge,
01919 GetTileTrackStatus_TunnelBridge,
01920 ClickTile_TunnelBridge,
01921 NULL,
01922 TileLoop_TunnelBridge,
01923 ChangeTileOwner_TunnelBridge,
01924 NULL,
01925 VehicleEnter_TunnelBridge,
01926 GetFoundation_TunnelBridge,
01927 TerraformTile_TunnelBridge,
01928 };