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00015 #include "stdafx.h"
00016 #include "openttd.h"
00017 #include "rail_map.h"
00018 #include "landscape.h"
00019 #include "unmovable_map.h"
00020 #include "viewport_func.h"
00021 #include "command_func.h"
00022 #include "town.h"
00023 #include "variables.h"
00024 #include "train.h"
00025 #include "ship.h"
00026 #include "roadveh.h"
00027 #include "water_map.h"
00028 #include "pathfinder/yapf/yapf_cache.h"
00029 #include "newgrf_sound.h"
00030 #include "autoslope.h"
00031 #include "tunnelbridge_map.h"
00032 #include "strings_func.h"
00033 #include "date_func.h"
00034 #include "functions.h"
00035 #include "vehicle_func.h"
00036 #include "sound_func.h"
00037 #include "tunnelbridge.h"
00038 #include "cheat_type.h"
00039 #include "elrail_func.h"
00040 #include "landscape_type.h"
00041 #include "pbs.h"
00042
00043 #include "table/sprites.h"
00044 #include "table/strings.h"
00045 #include "table/bridge_land.h"
00046
00047 BridgeSpec _bridge[MAX_BRIDGES];
00048 TileIndex _build_tunnel_endtile;
00049
00051 void ResetBridges()
00052 {
00053
00054 for (BridgeType i = 0; i < MAX_BRIDGES; i++) {
00055 if (_bridge[i].sprite_table != NULL) {
00056 for (BridgePieces j = BRIDGE_PIECE_NORTH; j < BRIDGE_PIECE_INVALID; j++) free(_bridge[i].sprite_table[j]);
00057 free(_bridge[i].sprite_table);
00058 }
00059 }
00060
00061
00062 memset(&_bridge, 0, sizeof(_bridge));
00063
00064 memcpy(&_bridge, &_orig_bridge, sizeof(_orig_bridge));
00065 }
00066
00070 int CalcBridgeLenCostFactor(int x)
00071 {
00072 int n;
00073 int r;
00074
00075 if (x < 2) return x;
00076 x -= 2;
00077 for (n = 0, r = 2;; n++) {
00078 if (x <= n) return r + x * n;
00079 r += n * n;
00080 x -= n;
00081 }
00082 }
00083
00084 Foundation GetBridgeFoundation(Slope tileh, Axis axis)
00085 {
00086 if ((tileh == SLOPE_FLAT) ||
00087 (((tileh == SLOPE_NE) || (tileh == SLOPE_SW)) && (axis == AXIS_X)) ||
00088 (((tileh == SLOPE_NW) || (tileh == SLOPE_SE)) && (axis == AXIS_Y))) return FOUNDATION_NONE;
00089
00090 return (HasSlopeHighestCorner(tileh) ? InclinedFoundation(axis) : FlatteningFoundation(tileh));
00091 }
00092
00100 bool HasBridgeFlatRamp(Slope tileh, Axis axis)
00101 {
00102 ApplyFoundationToSlope(GetBridgeFoundation(tileh, axis), &tileh);
00103
00104 return (tileh != SLOPE_FLAT);
00105 }
00106
00107 static inline const PalSpriteID *GetBridgeSpriteTable(int index, BridgePieces table)
00108 {
00109 const BridgeSpec *bridge = GetBridgeSpec(index);
00110 assert(table < BRIDGE_PIECE_INVALID);
00111 if (bridge->sprite_table == NULL || bridge->sprite_table[table] == NULL) {
00112 return _bridge_sprite_table[index][table];
00113 } else {
00114 return bridge->sprite_table[table];
00115 }
00116 }
00117
00118
00127 static CommandCost CheckBridgeSlopeNorth(Axis axis, Slope *tileh, uint *z)
00128 {
00129 Foundation f = GetBridgeFoundation(*tileh, axis);
00130 *z += ApplyFoundationToSlope(f, tileh);
00131
00132 Slope valid_inclined = (axis == AXIS_X ? SLOPE_NE : SLOPE_NW);
00133 if ((*tileh != SLOPE_FLAT) && (*tileh != valid_inclined)) return CMD_ERROR;
00134
00135 if (f == FOUNDATION_NONE) return CommandCost();
00136
00137 return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
00138 }
00139
00148 static CommandCost CheckBridgeSlopeSouth(Axis axis, Slope *tileh, uint *z)
00149 {
00150 Foundation f = GetBridgeFoundation(*tileh, axis);
00151 *z += ApplyFoundationToSlope(f, tileh);
00152
00153 Slope valid_inclined = (axis == AXIS_X ? SLOPE_SW : SLOPE_SE);
00154 if ((*tileh != SLOPE_FLAT) && (*tileh != valid_inclined)) return CMD_ERROR;
00155
00156 if (f == FOUNDATION_NONE) return CommandCost();
00157
00158 return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
00159 }
00160
00161 bool CheckBridge_Stuff(BridgeType bridge_type, uint bridge_len, DoCommandFlag flags)
00162 {
00163 if (flags & DC_QUERY_COST) {
00164 return bridge_len <= (_settings_game.construction.longbridges ? 100U : 16U);
00165 }
00166
00167 if (bridge_type >= MAX_BRIDGES) return false;
00168
00169 const BridgeSpec *b = GetBridgeSpec(bridge_type);
00170 if (b->avail_year > _cur_year) return false;
00171
00172 uint max = b->max_length;
00173 if (max >= 16 && _settings_game.construction.longbridges) max = 100;
00174
00175 return b->min_length <= bridge_len && bridge_len <= max;
00176 }
00177
00189 CommandCost CmdBuildBridge(TileIndex end_tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00190 {
00191 RailType railtype = INVALID_RAILTYPE;
00192 RoadTypes roadtypes = ROADTYPES_NONE;
00193 CommandCost cost(EXPENSES_CONSTRUCTION);
00194 Owner owner;
00195
00196
00197 BridgeType bridge_type = GB(p2, 0, 8);
00198
00199 if (p1 >= MapSize()) return CMD_ERROR;
00200
00201 TransportType transport_type = (TransportType)GB(p2, 15, 2);
00202
00203
00204 switch (transport_type) {
00205 case TRANSPORT_ROAD:
00206 roadtypes = (RoadTypes)GB(p2, 8, 2);
00207 if (!AreValidRoadTypes(roadtypes) || !HasRoadTypesAvail(_current_company, roadtypes)) return CMD_ERROR;
00208 break;
00209
00210 case TRANSPORT_RAIL:
00211 railtype = (RailType)GB(p2, 8, 7);
00212 if (!ValParamRailtype(railtype)) return CMD_ERROR;
00213 break;
00214
00215 case TRANSPORT_WATER:
00216 break;
00217
00218 default:
00219
00220 return CMD_ERROR;
00221 }
00222 TileIndex tile_start = p1;
00223 TileIndex tile_end = end_tile;
00224
00225 if (tile_start == tile_end) {
00226 return_cmd_error(STR_ERROR_CAN_T_START_AND_END_ON);
00227 }
00228
00229 Axis direction;
00230 if (TileX(tile_start) == TileX(tile_end)) {
00231 direction = AXIS_Y;
00232 } else if (TileY(tile_start) == TileY(tile_end)) {
00233 direction = AXIS_X;
00234 } else {
00235 return_cmd_error(STR_ERROR_START_AND_END_MUST_BE_IN);
00236 }
00237
00238 if (tile_end < tile_start) Swap(tile_start, tile_end);
00239
00240 uint bridge_len = GetTunnelBridgeLength(tile_start, tile_end);
00241 if (transport_type != TRANSPORT_WATER) {
00242
00243 if (!CheckBridge_Stuff(bridge_type, bridge_len, flags)) return_cmd_error(STR_ERROR_CAN_T_BUILD_BRIDGE_HERE);
00244 } else {
00245 if (bridge_len > (_settings_game.construction.longbridges ? 100U : 16U)) return_cmd_error(STR_ERROR_CAN_T_BUILD_BRIDGE_HERE);
00246 }
00247
00248
00249 if (IsWaterTile(tile_start) || IsWaterTile(tile_end)) {
00250 return_cmd_error(STR_ERROR_ENDS_OF_BRIDGE_MUST_BOTH);
00251 }
00252
00253 uint z_start;
00254 uint z_end;
00255 Slope tileh_start = GetTileSlope(tile_start, &z_start);
00256 Slope tileh_end = GetTileSlope(tile_end, &z_end);
00257
00258 CommandCost terraform_cost_north = CheckBridgeSlopeNorth(direction, &tileh_start, &z_start);
00259 CommandCost terraform_cost_south = CheckBridgeSlopeSouth(direction, &tileh_end, &z_end);
00260
00261 if (z_start != z_end) return_cmd_error(STR_ERROR_BRIDGEHEADS_NOT_SAME_HEIGHT);
00262
00263 if (IsBridgeTile(tile_start) && IsBridgeTile(tile_end) &&
00264 GetOtherBridgeEnd(tile_start) == tile_end &&
00265 GetTunnelBridgeTransportType(tile_start) == transport_type) {
00266
00267
00268
00269 if (transport_type == TRANSPORT_RAIL && GetRailType(tile_start) != railtype) {
00270 return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00271 }
00272
00273
00274 if (!(flags & DC_QUERY_COST) && IsTileOwner(tile_start, OWNER_TOWN) &&
00275 GetBridgeSpec(bridge_type)->speed < GetBridgeSpec(GetBridgeType(tile_start))->speed) {
00276 Town *t = ClosestTownFromTile(tile_start, UINT_MAX);
00277
00278 if (t == NULL) {
00279 return CMD_ERROR;
00280 } else {
00281 SetDParam(0, t->index);
00282 return_cmd_error(STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS);
00283 }
00284 }
00285
00286
00287 if (!(flags & DC_QUERY_COST) && bridge_type == GetBridgeType(tile_start)) {
00288 return_cmd_error(STR_ERROR_ALREADY_BUILT);
00289 }
00290
00291
00292 if (!IsTileOwner(tile_start, _current_company) && !IsTileOwner(tile_start, OWNER_TOWN)) {
00293 return_cmd_error(STR_ERROR_AREA_IS_OWNED_BY_ANOTHER);
00294 }
00295
00296 cost.AddCost((bridge_len + 1) * _price[PR_CLEAR_BRIDGE]);
00297 owner = GetTileOwner(tile_start);
00298
00299
00300 roadtypes |= GetRoadTypes(tile_start);
00301 } else {
00302
00303
00304 bool allow_on_slopes = (_settings_game.construction.build_on_slopes && transport_type != TRANSPORT_WATER);
00305
00306
00307 CommandCost ret = DoCommand(tile_start, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00308 if (CmdFailed(ret)) return ret;
00309 cost = ret;
00310
00311 if (CmdFailed(terraform_cost_north) || (terraform_cost_north.GetCost() != 0 && !allow_on_slopes))
00312 return_cmd_error(STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION);
00313 cost.AddCost(terraform_cost_north);
00314
00315
00316 ret = DoCommand(tile_end, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00317 if (CmdFailed(ret)) return ret;
00318 cost.AddCost(ret);
00319
00320
00321 if (CmdFailed(terraform_cost_south) || (terraform_cost_south.GetCost() != 0 && !allow_on_slopes))
00322 return_cmd_error(STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION);
00323 cost.AddCost(terraform_cost_south);
00324
00325 if (transport_type == TRANSPORT_WATER && (tileh_start == SLOPE_FLAT || tileh_end == SLOPE_FLAT)) return_cmd_error(STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION);
00326
00327 const TileIndex heads[] = {tile_start, tile_end};
00328 for (int i = 0; i < 2; i++) {
00329 if (MayHaveBridgeAbove(heads[i])) {
00330 if (IsBridgeAbove(heads[i])) {
00331 TileIndex north_head = GetNorthernBridgeEnd(heads[i]);
00332
00333 if (direction == GetBridgeAxis(heads[i])) return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00334
00335 if (z_start + TILE_HEIGHT == GetBridgeHeight(north_head)) {
00336 return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00337 }
00338 }
00339 }
00340 }
00341
00342 TileIndexDiff delta = (direction == AXIS_X ? TileDiffXY(1, 0) : TileDiffXY(0, 1));
00343 for (TileIndex tile = tile_start + delta; tile != tile_end; tile += delta) {
00344 if (GetTileMaxZ(tile) > z_start) return_cmd_error(STR_ERROR_BRIDGE_TOO_LOW_FOR_TERRAIN);
00345
00346 if (MayHaveBridgeAbove(tile) && IsBridgeAbove(tile)) {
00347
00348 return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00349 }
00350
00351 switch (GetTileType(tile)) {
00352 case MP_WATER:
00353 if (!IsWater(tile) && !IsCoast(tile)) goto not_valid_below;
00354 break;
00355
00356 case MP_RAILWAY:
00357 if (!IsPlainRail(tile)) goto not_valid_below;
00358 break;
00359
00360 case MP_ROAD:
00361 if (IsRoadDepot(tile)) goto not_valid_below;
00362 break;
00363
00364 case MP_TUNNELBRIDGE:
00365 if (IsTunnel(tile)) break;
00366 if (direction == DiagDirToAxis(GetTunnelBridgeDirection(tile))) goto not_valid_below;
00367 if (z_start < GetBridgeHeight(tile)) goto not_valid_below;
00368 break;
00369
00370 case MP_UNMOVABLE:
00371 if (!IsOwnedLand(tile)) goto not_valid_below;
00372 break;
00373
00374 case MP_CLEAR:
00375 break;
00376
00377 default:
00378 not_valid_below:;
00379
00380 ret = DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00381 if (CmdFailed(ret)) return ret;
00382 cost.AddCost(ret);
00383 break;
00384 }
00385
00386 if (flags & DC_EXEC) {
00387
00388
00389
00390 SetBridgeMiddle(tile, direction);
00391 }
00392 }
00393
00394 owner = _current_company;
00395 }
00396
00397
00398 if (flags & DC_EXEC) {
00399 DiagDirection dir = AxisToDiagDir(direction);
00400
00401 switch (transport_type) {
00402 case TRANSPORT_RAIL:
00403 MakeRailBridgeRamp(tile_start, owner, bridge_type, dir, railtype);
00404 MakeRailBridgeRamp(tile_end, owner, bridge_type, ReverseDiagDir(dir), railtype);
00405 break;
00406
00407 case TRANSPORT_ROAD:
00408 MakeRoadBridgeRamp(tile_start, owner, bridge_type, dir, roadtypes);
00409 MakeRoadBridgeRamp(tile_end, owner, bridge_type, ReverseDiagDir(dir), roadtypes);
00410 break;
00411
00412 case TRANSPORT_WATER:
00413 MakeAqueductBridgeRamp(tile_start, owner, dir);
00414 MakeAqueductBridgeRamp(tile_end, owner, ReverseDiagDir(dir));
00415 break;
00416
00417 default:
00418 NOT_REACHED();
00419 }
00420
00421
00422 TileIndexDiff delta = (direction == AXIS_X ? TileDiffXY(1, 0) : TileDiffXY(0, 1));
00423 for (TileIndex tile = tile_start; tile <= tile_end; tile += delta) {
00424 MarkTileDirtyByTile(tile);
00425 }
00426 }
00427
00428 if ((flags & DC_EXEC) && transport_type == TRANSPORT_RAIL) {
00429 Track track = AxisToTrack(direction);
00430 AddSideToSignalBuffer(tile_start, INVALID_DIAGDIR, _current_company);
00431 YapfNotifyTrackLayoutChange(tile_start, track);
00432 }
00433
00434
00435
00436
00437
00438 Company *c = Company::GetIfValid(_current_company);
00439 if (!(flags & DC_QUERY_COST) || (c != NULL && c->is_ai)) {
00440 bridge_len += 2;
00441
00442 if (c != NULL) bridge_len = CalcBridgeLenCostFactor(bridge_len);
00443
00444 cost.AddCost((int64)bridge_len * _price[PR_BUILD_BRIDGE] * GetBridgeSpec(bridge_type)->price >> 8);
00445
00446
00447 if (transport_type == TRANSPORT_WATER) cost.AddCost((int64)bridge_len * _price[PR_CLEAR_WATER]);
00448 }
00449
00450 return cost;
00451 }
00452
00453
00462 CommandCost CmdBuildTunnel(TileIndex start_tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00463 {
00464 TransportType transport_type = (TransportType)GB(p1, 9, 1);
00465 CommandCost cost(EXPENSES_CONSTRUCTION);
00466
00467 _build_tunnel_endtile = 0;
00468 if (transport_type == TRANSPORT_RAIL) {
00469 if (!ValParamRailtype((RailType)p1)) return CMD_ERROR;
00470 } else {
00471 const RoadTypes rts = (RoadTypes)GB(p1, 0, 2);
00472 if (!AreValidRoadTypes(rts) || !HasRoadTypesAvail(_current_company, rts)) return CMD_ERROR;
00473 }
00474
00475 uint start_z;
00476 uint end_z;
00477 Slope start_tileh = GetTileSlope(start_tile, &start_z);
00478 DiagDirection direction = GetInclinedSlopeDirection(start_tileh);
00479 if (direction == INVALID_DIAGDIR) return_cmd_error(STR_ERROR_SITE_UNSUITABLE_FOR_TUNNEL);
00480
00481 if (IsWaterTile(start_tile)) return_cmd_error(STR_ERROR_CAN_T_BUILD_ON_WATER);
00482
00483 CommandCost ret = DoCommand(start_tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00484 if (CmdFailed(ret)) return ret;
00485
00486
00487
00488
00489
00490
00491 TileIndexDiff delta = TileOffsByDiagDir(direction);
00492 DiagDirection tunnel_in_way_dir;
00493 if (DiagDirToAxis(direction) == AXIS_Y) {
00494 tunnel_in_way_dir = (TileX(start_tile) < (MapMaxX() / 2)) ? DIAGDIR_SW : DIAGDIR_NE;
00495 } else {
00496 tunnel_in_way_dir = (TileY(start_tile) < (MapMaxX() / 2)) ? DIAGDIR_SE : DIAGDIR_NW;
00497 }
00498
00499 TileIndex end_tile = start_tile;
00500
00501
00502 int tiles_coef = 3;
00503
00504 int tiles = 0;
00505
00506 int tiles_bump = 25;
00507
00508 Slope end_tileh;
00509 for (;;) {
00510 end_tile += delta;
00511 if (!IsValidTile(end_tile)) return_cmd_error(STR_ERROR_TUNNEL_THROUGH_MAP_BORDER);
00512 end_tileh = GetTileSlope(end_tile, &end_z);
00513
00514 if (start_z == end_z) break;
00515
00516 if (!_cheats.crossing_tunnels.value && IsTunnelInWayDir(end_tile, start_z, tunnel_in_way_dir)) {
00517 return_cmd_error(STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY);
00518 }
00519
00520 tiles++;
00521 if (tiles == tiles_bump) {
00522 tiles_coef++;
00523 tiles_bump *= 2;
00524 }
00525
00526 cost.AddCost(_price[PR_BUILD_TUNNEL]);
00527 cost.AddCost(cost.GetCost() >> tiles_coef);
00528 }
00529
00530
00531 cost.AddCost(_price[PR_BUILD_TUNNEL]);
00532 cost.AddCost(ret);
00533
00534
00535 _build_tunnel_endtile = end_tile;
00536
00537 if (IsWaterTile(end_tile)) return_cmd_error(STR_ERROR_CAN_T_BUILD_ON_WATER);
00538
00539
00540 if (end_tileh != ComplementSlope(start_tileh)) {
00541
00542
00543
00544
00545 ret = DoCommand(end_tile, 0, 0, DC_AUTO, CMD_LANDSCAPE_CLEAR);
00546 if (CmdFailed(ret)) return_cmd_error(STR_ERROR_UNABLE_TO_EXCAVATE_LAND);
00547
00548 ret = DoCommand(end_tile, end_tileh & start_tileh, 0, flags, CMD_TERRAFORM_LAND);
00549 if (CmdFailed(ret)) return_cmd_error(STR_ERROR_UNABLE_TO_EXCAVATE_LAND);
00550 } else {
00551 ret = DoCommand(end_tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00552 if (CmdFailed(ret)) return ret;
00553 }
00554 cost.AddCost(_price[PR_BUILD_TUNNEL]);
00555 cost.AddCost(ret);
00556
00557 if (flags & DC_EXEC) {
00558 if (transport_type == TRANSPORT_RAIL) {
00559 MakeRailTunnel(start_tile, _current_company, direction, (RailType)GB(p1, 0, 4));
00560 MakeRailTunnel(end_tile, _current_company, ReverseDiagDir(direction), (RailType)GB(p1, 0, 4));
00561 AddSideToSignalBuffer(start_tile, INVALID_DIAGDIR, _current_company);
00562 YapfNotifyTrackLayoutChange(start_tile, DiagDirToDiagTrack(direction));
00563 } else {
00564 MakeRoadTunnel(start_tile, _current_company, direction, (RoadTypes)GB(p1, 0, 2));
00565 MakeRoadTunnel(end_tile, _current_company, ReverseDiagDir(direction), (RoadTypes)GB(p1, 0, 2));
00566 }
00567 }
00568
00569 return cost;
00570 }
00571
00572
00573 static inline bool CheckAllowRemoveTunnelBridge(TileIndex tile)
00574 {
00575
00576 if (_current_company == OWNER_WATER || _game_mode == GM_EDITOR) return true;
00577
00578 switch (GetTunnelBridgeTransportType(tile)) {
00579 case TRANSPORT_ROAD: {
00580 RoadTypes rts = GetRoadTypes(tile);
00581 Owner road_owner = _current_company;
00582 Owner tram_owner = _current_company;
00583
00584 if (HasBit(rts, ROADTYPE_ROAD)) road_owner = GetRoadOwner(tile, ROADTYPE_ROAD);
00585 if (HasBit(rts, ROADTYPE_TRAM)) tram_owner = GetRoadOwner(tile, ROADTYPE_TRAM);
00586
00587
00588 if (road_owner == OWNER_TOWN && !(_settings_game.construction.extra_dynamite || _cheats.magic_bulldozer.value)) return CheckTileOwnership(tile);
00589 if (road_owner == OWNER_NONE || road_owner == OWNER_TOWN) road_owner = _current_company;
00590 if (tram_owner == OWNER_NONE) tram_owner = _current_company;
00591
00592 return CheckOwnership(road_owner) && CheckOwnership(tram_owner);
00593 }
00594
00595 case TRANSPORT_RAIL:
00596 case TRANSPORT_WATER:
00597 return CheckOwnership(GetTileOwner(tile));
00598
00599 default: NOT_REACHED();
00600 }
00601 }
00602
00603 static CommandCost DoClearTunnel(TileIndex tile, DoCommandFlag flags)
00604 {
00605 Town *t = NULL;
00606 TileIndex endtile;
00607
00608 if (!CheckAllowRemoveTunnelBridge(tile)) return CMD_ERROR;
00609
00610 endtile = GetOtherTunnelEnd(tile);
00611
00612 if (HasVehicleOnTunnelBridge(tile, endtile)) return CMD_ERROR;
00613
00614 _build_tunnel_endtile = endtile;
00615
00616 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00617 t = ClosestTownFromTile(tile, UINT_MAX);
00618
00619
00620
00621 if (!CheckforTownRating(flags, t, TUNNELBRIDGE_REMOVE)) {
00622 SetDParam(0, t->index);
00623 return_cmd_error(STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS);
00624 }
00625 }
00626
00627
00628
00629 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00630 ChangeTownRating(t, RATING_TUNNEL_BRIDGE_DOWN_STEP, RATING_TUNNEL_BRIDGE_MINIMUM, flags);
00631 }
00632
00633 if (flags & DC_EXEC) {
00634 if (GetTunnelBridgeTransportType(tile) == TRANSPORT_RAIL) {
00635
00636 DiagDirection dir = GetTunnelBridgeDirection(tile);
00637 Track track = DiagDirToDiagTrack(dir);
00638 Owner owner = GetTileOwner(tile);
00639
00640 Train *v = NULL;
00641 if (HasTunnelBridgeReservation(tile)) {
00642 v = GetTrainForReservation(tile, track);
00643 if (v != NULL) FreeTrainTrackReservation(v);
00644 }
00645
00646 DoClearSquare(tile);
00647 DoClearSquare(endtile);
00648
00649
00650 AddSideToSignalBuffer(tile, ReverseDiagDir(dir), owner);
00651 AddSideToSignalBuffer(endtile, dir, owner);
00652
00653 YapfNotifyTrackLayoutChange(tile, track);
00654 YapfNotifyTrackLayoutChange(endtile, track);
00655
00656 if (v != NULL) TryPathReserve(v);
00657 } else {
00658 DoClearSquare(tile);
00659 DoClearSquare(endtile);
00660 }
00661 }
00662 return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_CLEAR_TUNNEL] * (GetTunnelBridgeLength(tile, endtile) + 2));
00663 }
00664
00665
00666 static CommandCost DoClearBridge(TileIndex tile, DoCommandFlag flags)
00667 {
00668 DiagDirection direction;
00669 TileIndexDiff delta;
00670 TileIndex endtile;
00671 Town *t = NULL;
00672
00673 if (!CheckAllowRemoveTunnelBridge(tile)) return CMD_ERROR;
00674
00675 endtile = GetOtherBridgeEnd(tile);
00676
00677 if (HasVehicleOnTunnelBridge(tile, endtile)) return CMD_ERROR;
00678
00679 direction = GetTunnelBridgeDirection(tile);
00680 delta = TileOffsByDiagDir(direction);
00681
00682 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00683 t = ClosestTownFromTile(tile, UINT_MAX);
00684
00685
00686
00687 if (!CheckforTownRating(flags, t, TUNNELBRIDGE_REMOVE)) {
00688 SetDParam(0, t->index);
00689 return_cmd_error(STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS);
00690 }
00691 }
00692
00693
00694
00695 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00696 ChangeTownRating(t, RATING_TUNNEL_BRIDGE_DOWN_STEP, RATING_TUNNEL_BRIDGE_MINIMUM, flags);
00697 }
00698
00699 if (flags & DC_EXEC) {
00700
00701 bool rail = GetTunnelBridgeTransportType(tile) == TRANSPORT_RAIL;
00702 Owner owner = GetTileOwner(tile);
00703 uint height = GetBridgeHeight(tile);
00704 Train *v = NULL;
00705
00706 if (rail && HasTunnelBridgeReservation(tile)) {
00707 v = GetTrainForReservation(tile, DiagDirToDiagTrack(direction));
00708 if (v != NULL) FreeTrainTrackReservation(v);
00709 }
00710
00711 DoClearSquare(tile);
00712 DoClearSquare(endtile);
00713 for (TileIndex c = tile + delta; c != endtile; c += delta) {
00714
00715 if (IsNormalRoadTile(c) && GetRoadside(c) == ROADSIDE_TREES) {
00716 uint minz = GetTileMaxZ(c) + 3 * TILE_HEIGHT;
00717 if (height < minz) SetRoadside(c, ROADSIDE_PAVED);
00718 }
00719 ClearBridgeMiddle(c);
00720 MarkTileDirtyByTile(c);
00721 }
00722
00723 if (rail) {
00724
00725 AddSideToSignalBuffer(tile, ReverseDiagDir(direction), owner);
00726 AddSideToSignalBuffer(endtile, direction, owner);
00727
00728 Track track = DiagDirToDiagTrack(direction);
00729 YapfNotifyTrackLayoutChange(tile, track);
00730 YapfNotifyTrackLayoutChange(endtile, track);
00731
00732 if (v != NULL) TryPathReserve(v, true);
00733 }
00734 }
00735
00736 return CommandCost(EXPENSES_CONSTRUCTION, (GetTunnelBridgeLength(tile, endtile) + 2) * _price[PR_CLEAR_BRIDGE]);
00737 }
00738
00739 static CommandCost ClearTile_TunnelBridge(TileIndex tile, DoCommandFlag flags)
00740 {
00741 if (IsTunnel(tile)) {
00742 if (flags & DC_AUTO) return_cmd_error(STR_ERROR_MUST_DEMOLISH_TUNNEL_FIRST);
00743 return DoClearTunnel(tile, flags);
00744 } else {
00745 if (flags & DC_AUTO) return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00746 return DoClearBridge(tile, flags);
00747 }
00748
00749 return CMD_ERROR;
00750 }
00751
00763 static void DrawBridgePillars(const PalSpriteID *psid, const TileInfo *ti, Axis axis, bool drawfarpillar, int x, int y, int z_bridge)
00764 {
00765
00766 if (IsInvisibilitySet(TO_BRIDGES)) return;
00767
00768 SpriteID image = psid->sprite;
00769
00770 if (image != 0) {
00771
00772
00773
00774
00775
00776
00777
00778
00779
00780 bool side = HasBit(image, 0);
00781
00782
00783 DiagDirection dir = AxisToDiagDir(axis);
00784 if (side != (axis == AXIS_Y)) dir = ReverseDiagDir(dir);
00785
00786
00787 int front_height = ti->z;
00788 int back_height = ti->z;
00789 GetSlopeZOnEdge(ti->tileh, dir, &front_height, &back_height);
00790
00791
00792 int w = (axis == AXIS_X ? 16 : 2);
00793 int h = (axis == AXIS_X ? 2 : 16);
00794
00795 int x_back = x - (axis == AXIS_X ? 0 : 9);
00796 int y_back = y - (axis == AXIS_X ? 9 : 0);
00797
00798 for (int cur_z = z_bridge; cur_z >= front_height || cur_z >= back_height; cur_z -= TILE_HEIGHT) {
00799
00800 if (cur_z >= front_height) {
00801 AddSortableSpriteToDraw(image, psid->pal, x, y, w, h, BB_HEIGHT_UNDER_BRIDGE - 5, cur_z, IsTransparencySet(TO_BRIDGES), 0, 0, -5);
00802 }
00803
00804
00805 if (drawfarpillar && cur_z >= back_height && cur_z < z_bridge - TILE_HEIGHT) {
00806 AddSortableSpriteToDraw(image, psid->pal, x_back, y_back, w, h, BB_HEIGHT_UNDER_BRIDGE - 5, cur_z, IsTransparencySet(TO_BRIDGES), 0, 0, -5);
00807 }
00808 }
00809 }
00810 }
00811
00821 static void DrawBridgeTramBits(int x, int y, byte z, int offset, bool overlay, bool head)
00822 {
00823 static const SpriteID tram_offsets[2][6] = { { 107, 108, 109, 110, 111, 112 }, { 4, 5, 15, 16, 17, 18 } };
00824 static const SpriteID back_offsets[6] = { 95, 96, 99, 102, 100, 101 };
00825 static const SpriteID front_offsets[6] = { 97, 98, 103, 106, 104, 105 };
00826
00827 static const uint size_x[6] = { 1, 16, 16, 1, 16, 1 };
00828 static const uint size_y[6] = { 16, 1, 1, 16, 1, 16 };
00829 static const uint front_bb_offset_x[6] = { 15, 0, 0, 15, 0, 15 };
00830 static const uint front_bb_offset_y[6] = { 0, 15, 15, 0, 15, 0 };
00831
00832
00833
00834 if (head || !IsInvisibilitySet(TO_BRIDGES)) {
00835 AddSortableSpriteToDraw(SPR_TRAMWAY_BASE + tram_offsets[overlay][offset], PAL_NONE,
00836 x, y, size_x[offset], size_y[offset], 0x28, z,
00837 !head && IsTransparencySet(TO_BRIDGES));
00838 }
00839
00840
00841 if (!IsInvisibilitySet(TO_CATENARY)) {
00842 AddSortableSpriteToDraw(SPR_TRAMWAY_BASE + back_offsets[offset], PAL_NONE,
00843 x, y, size_x[offset], size_y[offset], 0x28, z,
00844 IsTransparencySet(TO_CATENARY));
00845 }
00846
00847
00848 EndSpriteCombine();
00849 StartSpriteCombine();
00850
00851
00852 if (!IsInvisibilitySet(TO_CATENARY)) {
00853 AddSortableSpriteToDraw(SPR_TRAMWAY_BASE + front_offsets[offset], PAL_NONE,
00854 x, y, size_x[offset] + front_bb_offset_x[offset], size_y[offset] + front_bb_offset_y[offset], 0x28, z,
00855 IsTransparencySet(TO_CATENARY), front_bb_offset_x[offset], front_bb_offset_y[offset]);
00856 }
00857 }
00858
00872 static void DrawTile_TunnelBridge(TileInfo *ti)
00873 {
00874 SpriteID image;
00875 TransportType transport_type = GetTunnelBridgeTransportType(ti->tile);
00876 DiagDirection tunnelbridge_direction = GetTunnelBridgeDirection(ti->tile);
00877
00878 if (IsTunnel(ti->tile)) {
00879
00880
00881
00882
00883
00884
00885
00886
00887
00888 static const int _tunnel_BB[4][12] = {
00889
00890
00891 { 1, 0, -15, -14, 0, 15, 16, 1, 0, 1, 16, 15 },
00892 { 0, 1, -14, -15, 15, 0, 1, 16, 1, 0, 15, 16 },
00893 { 1, 0, -15, -14, 0, 15, 16, 1, 0, 1, 16, 15 },
00894 { 0, 1, -14, -15, 15, 0, 1, 16, 1, 0, 15, 16 },
00895 };
00896 const int *BB_data = _tunnel_BB[tunnelbridge_direction];
00897
00898 bool catenary = false;
00899
00900 if (transport_type == TRANSPORT_RAIL) {
00901 image = GetRailTypeInfo(GetRailType(ti->tile))->base_sprites.tunnel;
00902 } else {
00903 image = SPR_TUNNEL_ENTRY_REAR_ROAD;
00904 }
00905
00906 if (HasTunnelBridgeSnowOrDesert(ti->tile)) image += 32;
00907
00908 image += tunnelbridge_direction * 2;
00909 DrawGroundSprite(image, PAL_NONE);
00910
00911
00912 if (_game_mode != GM_MENU && _settings_client.gui.show_track_reservation && (transport_type == TRANSPORT_RAIL && HasTunnelBridgeReservation(ti->tile))) {
00913 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(ti->tile));
00914 DrawGroundSprite(DiagDirToAxis(tunnelbridge_direction) == AXIS_X ? rti->base_sprites.single_x : rti->base_sprites.single_y, PALETTE_CRASH);
00915 }
00916
00917 if (transport_type == TRANSPORT_ROAD) {
00918 RoadTypes rts = GetRoadTypes(ti->tile);
00919
00920 if (HasBit(rts, ROADTYPE_TRAM)) {
00921 static const SpriteID tunnel_sprites[2][4] = { { 28, 78, 79, 27 }, { 5, 76, 77, 4 } };
00922
00923 DrawGroundSprite(SPR_TRAMWAY_BASE + tunnel_sprites[rts - ROADTYPES_TRAM][tunnelbridge_direction], PAL_NONE);
00924
00925
00926 if (!IsInvisibilitySet(TO_CATENARY)) {
00927 catenary = true;
00928 StartSpriteCombine();
00929 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);
00930 }
00931 }
00932 } else if (HasCatenaryDrawn(GetRailType(ti->tile))) {
00933
00934 DrawCatenary(ti);
00935
00936 catenary = true;
00937 StartSpriteCombine();
00938
00939 DrawCatenaryOnTunnel(ti);
00940 }
00941
00942 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);
00943
00944 if (catenary) EndSpriteCombine();
00945
00946
00947 AddSortableSpriteToDraw(SPR_EMPTY_BOUNDING_BOX, PAL_NONE, ti->x, ti->y, BB_data[6], BB_data[7], TILE_HEIGHT, ti->z);
00948 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);
00949
00950 DrawBridgeMiddle(ti);
00951 } else {
00952 const PalSpriteID *psid;
00953 int base_offset;
00954 bool ice = HasTunnelBridgeSnowOrDesert(ti->tile);
00955
00956 if (transport_type == TRANSPORT_RAIL) {
00957 base_offset = GetRailTypeInfo(GetRailType(ti->tile))->bridge_offset;
00958 assert(base_offset != 8);
00959 } else {
00960 base_offset = 8;
00961 }
00962
00963
00964 assert( (base_offset & 0x07) == 0x00);
00965
00966 DrawFoundation(ti, GetBridgeFoundation(ti->tileh, DiagDirToAxis(tunnelbridge_direction)));
00967
00968
00969 base_offset += (6 - tunnelbridge_direction) % 4;
00970
00971 if (ti->tileh == SLOPE_FLAT) base_offset += 4;
00972
00973
00974 if (transport_type != TRANSPORT_WATER) {
00975 psid = &GetBridgeSpriteTable(GetBridgeType(ti->tile), BRIDGE_PIECE_HEAD)[base_offset];
00976 } else {
00977 psid = _aqueduct_sprites + base_offset;
00978 }
00979
00980 if (!ice) {
00981 DrawClearLandTile(ti, 3);
00982 } else {
00983 DrawGroundSprite(SPR_FLAT_SNOW_DESERT_TILE + _tileh_to_sprite[ti->tileh], PAL_NONE);
00984 }
00985
00986
00987
00988
00989 if (transport_type == TRANSPORT_ROAD || transport_type == TRANSPORT_RAIL) StartSpriteCombine();
00990
00991
00992
00993
00994
00995 AddSortableSpriteToDraw(psid->sprite, psid->pal, ti->x, ti->y, 16, 16, ti->tileh == SLOPE_FLAT ? 0 : 8, ti->z);
00996
00997 if (_game_mode != GM_MENU && _settings_client.gui.show_track_reservation && transport_type == TRANSPORT_RAIL && HasTunnelBridgeReservation(ti->tile)) {
00998 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(ti->tile));
00999 if (HasBridgeFlatRamp(ti->tileh, DiagDirToAxis(tunnelbridge_direction))) {
01000 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);
01001 } else {
01002 AddSortableSpriteToDraw(rti->base_sprites.single_sloped + tunnelbridge_direction, PALETTE_CRASH, ti->x, ti->y, 16, 16, 8, ti->z);
01003 }
01004 }
01005
01006 if (transport_type == TRANSPORT_ROAD) {
01007 RoadTypes rts = GetRoadTypes(ti->tile);
01008
01009 if (HasBit(rts, ROADTYPE_TRAM)) {
01010 uint offset = tunnelbridge_direction;
01011 uint z = ti->z;
01012 if (ti->tileh != SLOPE_FLAT) {
01013 offset = (offset + 1) & 1;
01014 z += TILE_HEIGHT;
01015 } else {
01016 offset += 2;
01017 }
01018
01019 DrawBridgeTramBits(ti->x, ti->y, z, offset, HasBit(rts, ROADTYPE_ROAD), true);
01020 }
01021 EndSpriteCombine();
01022 } else if (transport_type == TRANSPORT_RAIL) {
01023 EndSpriteCombine();
01024 if (HasCatenaryDrawn(GetRailType(ti->tile))) {
01025 DrawCatenary(ti);
01026 }
01027 }
01028
01029 DrawBridgeMiddle(ti);
01030 }
01031 }
01032
01033
01051 static BridgePieces CalcBridgePiece(uint north, uint south)
01052 {
01053 if (north == 1) {
01054 return BRIDGE_PIECE_NORTH;
01055 } else if (south == 1) {
01056 return BRIDGE_PIECE_SOUTH;
01057 } else if (north < south) {
01058 return north & 1 ? BRIDGE_PIECE_INNER_SOUTH : BRIDGE_PIECE_INNER_NORTH;
01059 } else if (north > south) {
01060 return south & 1 ? BRIDGE_PIECE_INNER_NORTH : BRIDGE_PIECE_INNER_SOUTH;
01061 } else {
01062 return north & 1 ? BRIDGE_PIECE_MIDDLE_EVEN : BRIDGE_PIECE_MIDDLE_ODD;
01063 }
01064 }
01065
01066
01067 void DrawBridgeMiddle(const TileInfo *ti)
01068 {
01069
01070
01071
01072
01073
01074
01075
01076
01077
01078
01079
01080
01081
01082
01083
01084
01085
01086 static const int BRIDGE_Z_START = 3;
01087
01088 if (!IsBridgeAbove(ti->tile)) return;
01089
01090 TileIndex rampnorth = GetNorthernBridgeEnd(ti->tile);
01091 TileIndex rampsouth = GetSouthernBridgeEnd(ti->tile);
01092 TransportType transport_type = GetTunnelBridgeTransportType(rampsouth);
01093
01094 Axis axis = GetBridgeAxis(ti->tile);
01095 BridgePieces piece = CalcBridgePiece(
01096 GetTunnelBridgeLength(ti->tile, rampnorth) + 1,
01097 GetTunnelBridgeLength(ti->tile, rampsouth) + 1
01098 );
01099
01100 const PalSpriteID *psid;
01101 bool drawfarpillar;
01102 if (transport_type != TRANSPORT_WATER) {
01103 BridgeType type = GetBridgeType(rampsouth);
01104 drawfarpillar = !HasBit(GetBridgeSpec(type)->flags, 0);
01105
01106 uint base_offset;
01107 if (transport_type == TRANSPORT_RAIL) {
01108 base_offset = GetRailTypeInfo(GetRailType(rampsouth))->bridge_offset;
01109 } else {
01110 base_offset = 8;
01111 }
01112
01113 psid = base_offset + GetBridgeSpriteTable(type, piece);
01114 } else {
01115 drawfarpillar = true;
01116 psid = _aqueduct_sprites;
01117 }
01118
01119 if (axis != AXIS_X) psid += 4;
01120
01121 int x = ti->x;
01122 int y = ti->y;
01123 uint bridge_z = GetBridgeHeight(rampsouth);
01124 uint z = bridge_z - BRIDGE_Z_START;
01125
01126
01127 AddSortableSpriteToDraw(SPR_EMPTY_BOUNDING_BOX, PAL_NONE, x, y, 16, 16, 1, bridge_z - TILE_HEIGHT + BB_Z_SEPARATOR);
01128
01129
01130 if (transport_type == TRANSPORT_ROAD) StartSpriteCombine();
01131
01132
01133 if (!IsInvisibilitySet(TO_BRIDGES)) {
01134 if (axis == AXIS_X) {
01135 AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 16, 1, 0x28, z, IsTransparencySet(TO_BRIDGES), 0, 0, BRIDGE_Z_START);
01136 } else {
01137 AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 1, 16, 0x28, z, IsTransparencySet(TO_BRIDGES), 0, 0, BRIDGE_Z_START);
01138 }
01139 }
01140
01141 psid++;
01142
01143 if (transport_type == TRANSPORT_ROAD) {
01144 RoadTypes rts = GetRoadTypes(rampsouth);
01145
01146 if (HasBit(rts, ROADTYPE_TRAM)) {
01147
01148 DrawBridgeTramBits(x, y, bridge_z, axis ^ 1, HasBit(rts, ROADTYPE_ROAD), false);
01149 } else {
01150 EndSpriteCombine();
01151 StartSpriteCombine();
01152 }
01153 } else if (transport_type == TRANSPORT_RAIL) {
01154 if (HasCatenaryDrawn(GetRailType(rampsouth))) {
01155 DrawCatenaryOnBridge(ti);
01156 }
01157 }
01158
01159
01160 if (!IsInvisibilitySet(TO_BRIDGES)) {
01161 if (axis == AXIS_X) {
01162 y += 12;
01163 if (psid->sprite & SPRITE_MASK) AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 16, 4, 0x28, z, IsTransparencySet(TO_BRIDGES), 0, 3, BRIDGE_Z_START);
01164 } else {
01165 x += 12;
01166 if (psid->sprite & SPRITE_MASK) AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 4, 16, 0x28, z, IsTransparencySet(TO_BRIDGES), 3, 0, BRIDGE_Z_START);
01167 }
01168 }
01169
01170
01171 if (transport_type == TRANSPORT_ROAD) EndSpriteCombine();
01172
01173
01174 if (IsInvisibilitySet(TO_BRIDGES)) return;
01175
01176 psid++;
01177 if (ti->z + 5 == z) {
01178
01179 if (psid->sprite != 0) {
01180 SpriteID image = psid->sprite;
01181 SpriteID pal = psid->pal;
01182 if (IsTransparencySet(TO_BRIDGES)) {
01183 SetBit(image, PALETTE_MODIFIER_TRANSPARENT);
01184 pal = PALETTE_TO_TRANSPARENT;
01185 }
01186
01187 DrawGroundSpriteAt(image, pal, x, y, z);
01188 }
01189 } else if (_settings_client.gui.bridge_pillars) {
01190
01191 DrawBridgePillars(psid, ti, axis, drawfarpillar, x, y, z);
01192 }
01193 }
01194
01195
01196 static uint GetSlopeZ_TunnelBridge(TileIndex tile, uint x, uint y)
01197 {
01198 uint z;
01199 Slope tileh = GetTileSlope(tile, &z);
01200
01201 x &= 0xF;
01202 y &= 0xF;
01203
01204 if (IsTunnel(tile)) {
01205 uint pos = (DiagDirToAxis(GetTunnelBridgeDirection(tile)) == AXIS_X ? y : x);
01206
01207
01208 if (5 <= pos && pos <= 10) return z;
01209 } else {
01210 DiagDirection dir = GetTunnelBridgeDirection(tile);
01211 uint pos = (DiagDirToAxis(dir) == AXIS_X ? y : x);
01212
01213 z += ApplyFoundationToSlope(GetBridgeFoundation(tileh, DiagDirToAxis(dir)), &tileh);
01214
01215
01216 if (5 <= pos && pos <= 10) {
01217 uint delta;
01218
01219 if (tileh != SLOPE_FLAT) return z + TILE_HEIGHT;
01220
01221 switch (dir) {
01222 default: NOT_REACHED();
01223 case DIAGDIR_NE: delta = (TILE_SIZE - 1 - x) / 2; break;
01224 case DIAGDIR_SE: delta = y / 2; break;
01225 case DIAGDIR_SW: delta = x / 2; break;
01226 case DIAGDIR_NW: delta = (TILE_SIZE - 1 - y) / 2; break;
01227 }
01228 return z + 1 + delta;
01229 }
01230 }
01231
01232 return z + GetPartialZ(x, y, tileh);
01233 }
01234
01235 static Foundation GetFoundation_TunnelBridge(TileIndex tile, Slope tileh)
01236 {
01237 return IsTunnel(tile) ? FOUNDATION_NONE : GetBridgeFoundation(tileh, DiagDirToAxis(GetTunnelBridgeDirection(tile)));
01238 }
01239
01240 static void GetTileDesc_TunnelBridge(TileIndex tile, TileDesc *td)
01241 {
01242 TransportType tt = GetTunnelBridgeTransportType(tile);
01243
01244 if (IsTunnel(tile)) {
01245 td->str = (tt == TRANSPORT_RAIL) ? STR_LAI_TUNNEL_DESCRIPTION_RAILROAD : STR_LAI_TUNNEL_DESCRIPTION_ROAD;
01246 } else {
01247 td->str = (tt == TRANSPORT_WATER) ? STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT : GetBridgeSpec(GetBridgeType(tile))->transport_name[tt];
01248 }
01249 td->owner[0] = GetTileOwner(tile);
01250
01251 Owner road_owner = INVALID_OWNER;
01252 Owner tram_owner = INVALID_OWNER;
01253 RoadTypes rts = GetRoadTypes(tile);
01254 if (HasBit(rts, ROADTYPE_ROAD)) road_owner = GetRoadOwner(tile, ROADTYPE_ROAD);
01255 if (HasBit(rts, ROADTYPE_TRAM)) tram_owner = GetRoadOwner(tile, ROADTYPE_TRAM);
01256
01257
01258 if ((tram_owner != INVALID_OWNER && tram_owner != td->owner[0]) ||
01259 (road_owner != INVALID_OWNER && road_owner != td->owner[0])) {
01260 uint i = 1;
01261 if (road_owner != INVALID_OWNER) {
01262 td->owner_type[i] = STR_LAND_AREA_INFORMATION_ROAD_OWNER;
01263 td->owner[i] = road_owner;
01264 i++;
01265 }
01266 if (tram_owner != INVALID_OWNER) {
01267 td->owner_type[i] = STR_LAND_AREA_INFORMATION_TRAM_OWNER;
01268 td->owner[i] = tram_owner;
01269 }
01270 }
01271 }
01272
01273
01274 static void TileLoop_TunnelBridge(TileIndex tile)
01275 {
01276 bool snow_or_desert = HasTunnelBridgeSnowOrDesert(tile);
01277 switch (_settings_game.game_creation.landscape) {
01278 case LT_ARCTIC:
01279 if (snow_or_desert != (GetTileZ(tile) > GetSnowLine())) {
01280 SetTunnelBridgeSnowOrDesert(tile, !snow_or_desert);
01281 MarkTileDirtyByTile(tile);
01282 }
01283 break;
01284
01285 case LT_TROPIC:
01286 if (GetTropicZone(tile) == TROPICZONE_DESERT && !snow_or_desert) {
01287 SetTunnelBridgeSnowOrDesert(tile, true);
01288 MarkTileDirtyByTile(tile);
01289 }
01290 break;
01291
01292 default:
01293 break;
01294 }
01295 }
01296
01297 static TrackStatus GetTileTrackStatus_TunnelBridge(TileIndex tile, TransportType mode, uint sub_mode, DiagDirection side)
01298 {
01299 TransportType transport_type = GetTunnelBridgeTransportType(tile);
01300 if (transport_type != mode || (transport_type == TRANSPORT_ROAD && (GetRoadTypes(tile) & sub_mode) == 0)) return 0;
01301
01302 DiagDirection dir = GetTunnelBridgeDirection(tile);
01303 if (side != INVALID_DIAGDIR && side != ReverseDiagDir(dir)) return 0;
01304 return CombineTrackStatus(TrackBitsToTrackdirBits(DiagDirToDiagTrackBits(dir)), TRACKDIR_BIT_NONE);
01305 }
01306
01307 static void ChangeTileOwner_TunnelBridge(TileIndex tile, Owner old_owner, Owner new_owner)
01308 {
01309 for (RoadType rt = ROADTYPE_ROAD; rt < ROADTYPE_END; rt++) {
01310
01311 if (GetRoadOwner(tile, rt) == old_owner) {
01312 SetRoadOwner(tile, rt, new_owner == INVALID_OWNER ? OWNER_NONE : new_owner);
01313 }
01314 }
01315
01316 if (!IsTileOwner(tile, old_owner)) return;
01317
01318 if (new_owner != INVALID_OWNER) {
01319 SetTileOwner(tile, new_owner);
01320 } else {
01321 if (CmdFailed(DoCommand(tile, 0, 0, DC_EXEC | DC_BANKRUPT, CMD_LANDSCAPE_CLEAR))) {
01322
01323
01324
01325
01326 assert(GetTunnelBridgeTransportType(tile) != TRANSPORT_RAIL);
01327 SetTileOwner(tile, OWNER_NONE);
01328 }
01329 }
01330 }
01331
01332
01333 static const byte _tunnel_fractcoord_1[4] = {0x8E, 0x18, 0x81, 0xE8};
01334 static const byte _tunnel_fractcoord_2[4] = {0x81, 0x98, 0x87, 0x38};
01335 static const byte _tunnel_fractcoord_3[4] = {0x82, 0x88, 0x86, 0x48};
01336 static const byte _exit_tunnel_track[4] = {1, 2, 1, 2};
01337
01339 static const Trackdir _road_exit_tunnel_state[DIAGDIR_END] = {
01340 TRACKDIR_X_SW, TRACKDIR_Y_NW, TRACKDIR_X_NE, TRACKDIR_Y_SE
01341 };
01342 static const byte _road_exit_tunnel_frame[4] = {2, 7, 9, 4};
01343
01344 static const byte _tunnel_fractcoord_4[4] = {0x52, 0x85, 0x98, 0x29};
01345 static const byte _tunnel_fractcoord_5[4] = {0x92, 0x89, 0x58, 0x25};
01346 static const byte _tunnel_fractcoord_6[4] = {0x92, 0x89, 0x56, 0x45};
01347 static const byte _tunnel_fractcoord_7[4] = {0x52, 0x85, 0x96, 0x49};
01348
01349 static VehicleEnterTileStatus VehicleEnter_TunnelBridge(Vehicle *v, TileIndex tile, int x, int y)
01350 {
01351 int z = GetSlopeZ(x, y) - v->z_pos;
01352
01353 if (abs(z) > 2) return VETSB_CANNOT_ENTER;
01354 const DiagDirection dir = GetTunnelBridgeDirection(tile);
01355
01356 if (IsTunnel(tile)) {
01357 byte fc;
01358 DiagDirection vdir;
01359
01360 if (v->type == VEH_TRAIN) {
01361 Train *t = Train::From(v);
01362 fc = (x & 0xF) + (y << 4);
01363
01364 vdir = DirToDiagDir(t->direction);
01365
01366 if (t->track != TRACK_BIT_WORMHOLE && dir == vdir) {
01367 if (t->IsFrontEngine() && fc == _tunnel_fractcoord_1[dir]) {
01368 if (!PlayVehicleSound(t, VSE_TUNNEL) && RailVehInfo(t->engine_type)->engclass == 0) {
01369 SndPlayVehicleFx(SND_05_TRAIN_THROUGH_TUNNEL, v);
01370 }
01371 return VETSB_CONTINUE;
01372 }
01373 if (fc == _tunnel_fractcoord_2[dir]) {
01374 t->tile = tile;
01375 t->track = TRACK_BIT_WORMHOLE;
01376 t->vehstatus |= VS_HIDDEN;
01377 return VETSB_ENTERED_WORMHOLE;
01378 }
01379 }
01380
01381 if (dir == ReverseDiagDir(vdir) && fc == _tunnel_fractcoord_3[dir] && z == 0) {
01382
01383 t->tile = tile;
01384 t->track = (TrackBits)_exit_tunnel_track[dir];
01385 assert(t->track);
01386 t->vehstatus &= ~VS_HIDDEN;
01387 return VETSB_ENTERED_WORMHOLE;
01388 }
01389 } else if (v->type == VEH_ROAD) {
01390 RoadVehicle *rv = RoadVehicle::From(v);
01391 fc = (x & 0xF) + (y << 4);
01392 vdir = DirToDiagDir(v->direction);
01393
01394
01395 if (rv->state != RVSB_WORMHOLE && dir == vdir) {
01396 if (fc == _tunnel_fractcoord_4[dir] ||
01397 fc == _tunnel_fractcoord_5[dir]) {
01398 rv->tile = tile;
01399 rv->state = RVSB_WORMHOLE;
01400 rv->vehstatus |= VS_HIDDEN;
01401 return VETSB_ENTERED_WORMHOLE;
01402 } else {
01403 return VETSB_CONTINUE;
01404 }
01405 }
01406
01407 if (dir == ReverseDiagDir(vdir) && (
01408
01409 fc == _tunnel_fractcoord_6[dir] ||
01410 fc == _tunnel_fractcoord_7[dir]
01411 ) &&
01412 z == 0) {
01413 rv->tile = tile;
01414 rv->state = _road_exit_tunnel_state[dir];
01415 rv->frame = _road_exit_tunnel_frame[dir];
01416 rv->vehstatus &= ~VS_HIDDEN;
01417 return VETSB_ENTERED_WORMHOLE;
01418 }
01419 }
01420 } else {
01421
01422 if (v->IsPrimaryVehicle() && v->type != VEH_SHIP) {
01423
01424 uint16 spd = GetBridgeSpec(GetBridgeType(tile))->speed;
01425
01426 if (v->type == VEH_ROAD) spd *= 2;
01427 if (v->cur_speed > spd) v->cur_speed = spd;
01428 }
01429
01430 if (DirToDiagDir(v->direction) == dir) {
01431 switch (dir) {
01432 default: NOT_REACHED();
01433 case DIAGDIR_NE: if ((x & 0xF) != 0) return VETSB_CONTINUE; break;
01434 case DIAGDIR_SE: if ((y & 0xF) != TILE_SIZE - 1) return VETSB_CONTINUE; break;
01435 case DIAGDIR_SW: if ((x & 0xF) != TILE_SIZE - 1) return VETSB_CONTINUE; break;
01436 case DIAGDIR_NW: if ((y & 0xF) != 0) return VETSB_CONTINUE; break;
01437 }
01438 switch (v->type) {
01439 case VEH_TRAIN: {
01440 Train *t = Train::From(v);
01441 t->track = TRACK_BIT_WORMHOLE;
01442 ClrBit(t->flags, VRF_GOINGUP);
01443 ClrBit(t->flags, VRF_GOINGDOWN);
01444 } break;
01445
01446 case VEH_ROAD:
01447 RoadVehicle::From(v)->state = RVSB_WORMHOLE;
01448 break;
01449
01450 case VEH_SHIP:
01451 Ship::From(v)->state = TRACK_BIT_WORMHOLE;
01452 break;
01453
01454 default: NOT_REACHED();
01455 }
01456 return VETSB_ENTERED_WORMHOLE;
01457 } else if (DirToDiagDir(v->direction) == ReverseDiagDir(dir)) {
01458 v->tile = tile;
01459 switch (v->type) {
01460 case VEH_TRAIN: {
01461 Train *t = Train::From(v);
01462 if (t->track == TRACK_BIT_WORMHOLE) {
01463 t->track = (DiagDirToAxis(dir) == AXIS_X ? TRACK_BIT_X : TRACK_BIT_Y);
01464 return VETSB_ENTERED_WORMHOLE;
01465 }
01466 } break;
01467
01468 case VEH_ROAD: {
01469 RoadVehicle *rv = RoadVehicle::From(v);
01470 if (rv->state == RVSB_WORMHOLE) {
01471 rv->state = _road_exit_tunnel_state[dir];
01472 rv->frame = 0;
01473 return VETSB_ENTERED_WORMHOLE;
01474 }
01475 } break;
01476
01477 case VEH_SHIP: {
01478 Ship *ship = Ship::From(v);
01479 if (ship->state == TRACK_BIT_WORMHOLE) {
01480 ship->state = (DiagDirToAxis(dir) == AXIS_X ? TRACK_BIT_X : TRACK_BIT_Y);
01481 return VETSB_ENTERED_WORMHOLE;
01482 }
01483 } break;
01484
01485 default: NOT_REACHED();
01486 }
01487 }
01488 }
01489 return VETSB_CONTINUE;
01490 }
01491
01492 static CommandCost TerraformTile_TunnelBridge(TileIndex tile, DoCommandFlag flags, uint z_new, Slope tileh_new)
01493 {
01494 if (_settings_game.construction.build_on_slopes && AutoslopeEnabled() && IsBridge(tile) && GetTunnelBridgeTransportType(tile) != TRANSPORT_WATER) {
01495 DiagDirection direction = GetTunnelBridgeDirection(tile);
01496 Axis axis = DiagDirToAxis(direction);
01497 CommandCost res;
01498 uint z_old;
01499 Slope tileh_old = GetTileSlope(tile, &z_old);
01500
01501
01502 if ((direction == DIAGDIR_NW) || (direction == DIAGDIR_NE)) {
01503 CheckBridgeSlopeSouth(axis, &tileh_old, &z_old);
01504 res = CheckBridgeSlopeSouth(axis, &tileh_new, &z_new);
01505 } else {
01506 CheckBridgeSlopeNorth(axis, &tileh_old, &z_old);
01507 res = CheckBridgeSlopeNorth(axis, &tileh_new, &z_new);
01508 }
01509
01510
01511 if (!CmdFailed(res) && (z_old == z_new) && (tileh_old == tileh_new)) return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
01512 }
01513
01514 return DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
01515 }
01516
01517 extern const TileTypeProcs _tile_type_tunnelbridge_procs = {
01518 DrawTile_TunnelBridge,
01519 GetSlopeZ_TunnelBridge,
01520 ClearTile_TunnelBridge,
01521 NULL,
01522 GetTileDesc_TunnelBridge,
01523 GetTileTrackStatus_TunnelBridge,
01524 NULL,
01525 NULL,
01526 TileLoop_TunnelBridge,
01527 ChangeTileOwner_TunnelBridge,
01528 NULL,
01529 VehicleEnter_TunnelBridge,
01530 GetFoundation_TunnelBridge,
01531 TerraformTile_TunnelBridge,
01532 };