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00016 #include "stdafx.h"
00017 #include "newgrf_object.h"
00018 #include "viewport_func.h"
00019 #include "cmd_helper.h"
00020 #include "command_func.h"
00021 #include "town.h"
00022 #include "train.h"
00023 #include "ship.h"
00024 #include "roadveh.h"
00025 #include "water_map.h"
00026 #include "pathfinder/yapf/yapf_cache.h"
00027 #include "newgrf_sound.h"
00028 #include "autoslope.h"
00029 #include "tunnelbridge_map.h"
00030 #include "strings_func.h"
00031 #include "date_func.h"
00032 #include "functions.h"
00033 #include "vehicle_func.h"
00034 #include "sound_func.h"
00035 #include "tunnelbridge.h"
00036 #include "cheat_type.h"
00037 #include "elrail_func.h"
00038 #include "pbs.h"
00039 #include "company_base.h"
00040 #include "newgrf_railtype.h"
00041 #include "object_base.h"
00042 #include "water.h"
00043
00044 #include "table/sprites.h"
00045 #include "table/strings.h"
00046 #include "table/bridge_land.h"
00047
00048 BridgeSpec _bridge[MAX_BRIDGES];
00049 TileIndex _build_tunnel_endtile;
00050
00051
00052 static const int BRIDGE_Z_START = 3;
00053
00055 void ResetBridges()
00056 {
00057
00058 for (BridgeType i = 0; i < MAX_BRIDGES; i++) {
00059 if (_bridge[i].sprite_table != NULL) {
00060 for (BridgePieces j = BRIDGE_PIECE_NORTH; j < BRIDGE_PIECE_INVALID; j++) free(_bridge[i].sprite_table[j]);
00061 free(_bridge[i].sprite_table);
00062 }
00063 }
00064
00065
00066 memset(&_bridge, 0, sizeof(_bridge));
00067
00068 memcpy(&_bridge, &_orig_bridge, sizeof(_orig_bridge));
00069 }
00070
00077 int CalcBridgeLenCostFactor(int length)
00078 {
00079 if (length < 2) return length;
00080
00081 length -= 2;
00082 int sum = 2;
00083 for (int delta = 1;; delta++) {
00084 for (int count = 0; count < delta; count++) {
00085 if (length == 0) return sum;
00086 sum += delta;
00087 length--;
00088 }
00089 }
00090 }
00091
00092 Foundation GetBridgeFoundation(Slope tileh, Axis axis)
00093 {
00094 if (tileh == SLOPE_FLAT ||
00095 ((tileh == SLOPE_NE || tileh == SLOPE_SW) && axis == AXIS_X) ||
00096 ((tileh == SLOPE_NW || tileh == SLOPE_SE) && axis == AXIS_Y)) return FOUNDATION_NONE;
00097
00098 return (HasSlopeHighestCorner(tileh) ? InclinedFoundation(axis) : FlatteningFoundation(tileh));
00099 }
00100
00108 bool HasBridgeFlatRamp(Slope tileh, Axis axis)
00109 {
00110 ApplyFoundationToSlope(GetBridgeFoundation(tileh, axis), &tileh);
00111
00112 return (tileh != SLOPE_FLAT);
00113 }
00114
00115 static inline const PalSpriteID *GetBridgeSpriteTable(int index, BridgePieces table)
00116 {
00117 const BridgeSpec *bridge = GetBridgeSpec(index);
00118 assert(table < BRIDGE_PIECE_INVALID);
00119 if (bridge->sprite_table == NULL || bridge->sprite_table[table] == NULL) {
00120 return _bridge_sprite_table[index][table];
00121 } else {
00122 return bridge->sprite_table[table];
00123 }
00124 }
00125
00126
00135 static CommandCost CheckBridgeSlopeNorth(Axis axis, Slope *tileh, uint *z)
00136 {
00137 Foundation f = GetBridgeFoundation(*tileh, axis);
00138 *z += ApplyFoundationToSlope(f, tileh);
00139
00140 Slope valid_inclined = (axis == AXIS_X ? SLOPE_NE : SLOPE_NW);
00141 if ((*tileh != SLOPE_FLAT) && (*tileh != valid_inclined)) return CMD_ERROR;
00142
00143 if (f == FOUNDATION_NONE) return CommandCost();
00144
00145 return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
00146 }
00147
00156 static CommandCost CheckBridgeSlopeSouth(Axis axis, Slope *tileh, uint *z)
00157 {
00158 Foundation f = GetBridgeFoundation(*tileh, axis);
00159 *z += ApplyFoundationToSlope(f, tileh);
00160
00161 Slope valid_inclined = (axis == AXIS_X ? SLOPE_SW : SLOPE_SE);
00162 if ((*tileh != SLOPE_FLAT) && (*tileh != valid_inclined)) return CMD_ERROR;
00163
00164 if (f == FOUNDATION_NONE) return CommandCost();
00165
00166 return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
00167 }
00168
00175 CommandCost CheckBridgeAvailability(BridgeType bridge_type, uint bridge_len, DoCommandFlag flags)
00176 {
00177 if (flags & DC_QUERY_COST) {
00178 if (bridge_len <= (_settings_game.construction.longbridges ? MAX_BRIDGE_LENGTH_LONGBRIDGES : MAX_BRIDGE_LENGTH)) return CommandCost();
00179 return_cmd_error(STR_ERROR_BRIDGE_TOO_LONG);
00180 }
00181
00182 if (bridge_type >= MAX_BRIDGES) return CMD_ERROR;
00183
00184 const BridgeSpec *b = GetBridgeSpec(bridge_type);
00185 if (b->avail_year > _cur_year) return CMD_ERROR;
00186
00187 uint max = b->max_length;
00188 if (max >= MAX_BRIDGE_LENGTH && _settings_game.construction.longbridges) max = MAX_BRIDGE_LENGTH_LONGBRIDGES;
00189
00190 if (b->min_length > bridge_len) return CMD_ERROR;
00191 if (bridge_len <= max) return CommandCost();
00192 return_cmd_error(STR_ERROR_BRIDGE_TOO_LONG);
00193 }
00194
00207 CommandCost CmdBuildBridge(TileIndex end_tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00208 {
00209 RailType railtype = INVALID_RAILTYPE;
00210 RoadTypes roadtypes = ROADTYPES_NONE;
00211
00212
00213 BridgeType bridge_type = GB(p2, 0, 8);
00214
00215 if (!IsValidTile(p1)) return_cmd_error(STR_ERROR_BRIDGE_THROUGH_MAP_BORDER);
00216
00217 TransportType transport_type = Extract<TransportType, 15, 2>(p2);
00218
00219
00220 switch (transport_type) {
00221 case TRANSPORT_ROAD:
00222 roadtypes = Extract<RoadTypes, 8, 2>(p2);
00223 if (!HasExactlyOneBit(roadtypes) || !HasRoadTypesAvail(_current_company, roadtypes)) return CMD_ERROR;
00224 break;
00225
00226 case TRANSPORT_RAIL:
00227 railtype = Extract<RailType, 8, 4>(p2);
00228 if (!ValParamRailtype(railtype)) return CMD_ERROR;
00229 break;
00230
00231 case TRANSPORT_WATER:
00232 break;
00233
00234 default:
00235
00236 return CMD_ERROR;
00237 }
00238 TileIndex tile_start = p1;
00239 TileIndex tile_end = end_tile;
00240
00241 if (tile_start == tile_end) {
00242 return_cmd_error(STR_ERROR_CAN_T_START_AND_END_ON);
00243 }
00244
00245 Axis direction;
00246 if (TileX(tile_start) == TileX(tile_end)) {
00247 direction = AXIS_Y;
00248 } else if (TileY(tile_start) == TileY(tile_end)) {
00249 direction = AXIS_X;
00250 } else {
00251 return_cmd_error(STR_ERROR_START_AND_END_MUST_BE_IN);
00252 }
00253
00254 if (tile_end < tile_start) Swap(tile_start, tile_end);
00255
00256 uint bridge_len = GetTunnelBridgeLength(tile_start, tile_end);
00257 if (transport_type != TRANSPORT_WATER) {
00258
00259 CommandCost ret = CheckBridgeAvailability(bridge_type, bridge_len, flags);
00260 if (ret.Failed()) return ret;
00261 } else {
00262 if (bridge_len > (_settings_game.construction.longbridges ? MAX_BRIDGE_LENGTH_LONGBRIDGES : MAX_BRIDGE_LENGTH)) return_cmd_error(STR_ERROR_BRIDGE_TOO_LONG);
00263 }
00264
00265 uint z_start;
00266 uint z_end;
00267 Slope tileh_start = GetTileSlope(tile_start, &z_start);
00268 Slope tileh_end = GetTileSlope(tile_end, &z_end);
00269 bool pbs_reservation = false;
00270
00271 CommandCost terraform_cost_north = CheckBridgeSlopeNorth(direction, &tileh_start, &z_start);
00272 CommandCost terraform_cost_south = CheckBridgeSlopeSouth(direction, &tileh_end, &z_end);
00273
00274
00275 if (transport_type == TRANSPORT_WATER && (tileh_start == SLOPE_FLAT || tileh_end == SLOPE_FLAT)) return_cmd_error(STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION);
00276 if (z_start != z_end) return_cmd_error(STR_ERROR_BRIDGEHEADS_NOT_SAME_HEIGHT);
00277
00278 CommandCost cost(EXPENSES_CONSTRUCTION);
00279 Owner owner;
00280 if (IsBridgeTile(tile_start) && IsBridgeTile(tile_end) &&
00281 GetOtherBridgeEnd(tile_start) == tile_end &&
00282 GetTunnelBridgeTransportType(tile_start) == transport_type) {
00283
00284
00285
00286 if (transport_type == TRANSPORT_RAIL && GetRailType(tile_start) != railtype) {
00287 return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00288 }
00289
00290
00291 if (!(flags & DC_QUERY_COST) && IsTileOwner(tile_start, OWNER_TOWN) &&
00292 GetBridgeSpec(bridge_type)->speed < GetBridgeSpec(GetBridgeType(tile_start))->speed) {
00293 Town *t = ClosestTownFromTile(tile_start, UINT_MAX);
00294
00295 if (t == NULL) {
00296 return CMD_ERROR;
00297 } else {
00298 SetDParam(0, t->index);
00299 return_cmd_error(STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS);
00300 }
00301 }
00302
00303
00304 if (!(flags & DC_QUERY_COST) && bridge_type == GetBridgeType(tile_start)) {
00305 return_cmd_error(STR_ERROR_ALREADY_BUILT);
00306 }
00307
00308
00309 if (!IsTileOwner(tile_start, _current_company) && !IsTileOwner(tile_start, OWNER_TOWN)) {
00310 return_cmd_error(STR_ERROR_AREA_IS_OWNED_BY_ANOTHER);
00311 }
00312
00313 cost.AddCost((bridge_len + 1) * _price[PR_CLEAR_BRIDGE]);
00314 owner = GetTileOwner(tile_start);
00315
00316 switch (transport_type) {
00317 case TRANSPORT_RAIL:
00318
00319 pbs_reservation = HasTunnelBridgeReservation(tile_start);
00320 break;
00321
00322 case TRANSPORT_ROAD:
00323
00324 roadtypes |= GetRoadTypes(tile_start);
00325 break;
00326
00327 default: break;
00328 }
00329 } else {
00330
00331
00332 bool allow_on_slopes = (_settings_game.construction.build_on_slopes && transport_type != TRANSPORT_WATER);
00333
00334
00335 CommandCost ret = DoCommand(tile_start, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00336 if (ret.Failed()) return ret;
00337 cost = ret;
00338
00339 if (terraform_cost_north.Failed() || (terraform_cost_north.GetCost() != 0 && !allow_on_slopes)) return_cmd_error(STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION);
00340 cost.AddCost(terraform_cost_north);
00341
00342
00343 ret = DoCommand(tile_end, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00344 if (ret.Failed()) return ret;
00345 cost.AddCost(ret);
00346
00347
00348 if (terraform_cost_south.Failed() || (terraform_cost_south.GetCost() != 0 && !allow_on_slopes)) return_cmd_error(STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION);
00349 cost.AddCost(terraform_cost_south);
00350
00351 const TileIndex heads[] = {tile_start, tile_end};
00352 for (int i = 0; i < 2; i++) {
00353 if (MayHaveBridgeAbove(heads[i])) {
00354 if (IsBridgeAbove(heads[i])) {
00355 TileIndex north_head = GetNorthernBridgeEnd(heads[i]);
00356
00357 if (direction == GetBridgeAxis(heads[i])) return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00358
00359 if (z_start + TILE_HEIGHT == GetBridgeHeight(north_head)) {
00360 return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00361 }
00362 }
00363 }
00364 }
00365
00366 TileIndexDiff delta = (direction == AXIS_X ? TileDiffXY(1, 0) : TileDiffXY(0, 1));
00367 for (TileIndex tile = tile_start + delta; tile != tile_end; tile += delta) {
00368 if (GetTileMaxZ(tile) > z_start) return_cmd_error(STR_ERROR_BRIDGE_TOO_LOW_FOR_TERRAIN);
00369
00370 if (MayHaveBridgeAbove(tile) && IsBridgeAbove(tile)) {
00371
00372 return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00373 }
00374
00375 switch (GetTileType(tile)) {
00376 case MP_WATER:
00377 if (!IsWater(tile) && !IsCoast(tile)) goto not_valid_below;
00378 break;
00379
00380 case MP_RAILWAY:
00381 if (!IsPlainRail(tile)) goto not_valid_below;
00382 break;
00383
00384 case MP_ROAD:
00385 if (IsRoadDepot(tile)) goto not_valid_below;
00386 break;
00387
00388 case MP_TUNNELBRIDGE:
00389 if (IsTunnel(tile)) break;
00390 if (direction == DiagDirToAxis(GetTunnelBridgeDirection(tile))) goto not_valid_below;
00391 if (z_start < GetBridgeHeight(tile)) goto not_valid_below;
00392 break;
00393
00394 case MP_OBJECT: {
00395 const ObjectSpec *spec = ObjectSpec::GetByTile(tile);
00396 if ((spec->flags & OBJECT_FLAG_ALLOW_UNDER_BRIDGE) == 0) goto not_valid_below;
00397 if (GetTileMaxZ(tile) + spec->height * TILE_HEIGHT > z_start) goto not_valid_below;
00398 break;
00399 }
00400
00401 case MP_CLEAR:
00402 break;
00403
00404 default:
00405 not_valid_below:;
00406
00407 ret = DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00408 if (ret.Failed()) return ret;
00409 cost.AddCost(ret);
00410 break;
00411 }
00412
00413 if (flags & DC_EXEC) {
00414
00415
00416
00417 SetBridgeMiddle(tile, direction);
00418 }
00419 }
00420
00421 owner = _current_company;
00422 }
00423
00424
00425 if (flags & DC_EXEC) {
00426 DiagDirection dir = AxisToDiagDir(direction);
00427
00428 switch (transport_type) {
00429 case TRANSPORT_RAIL:
00430 MakeRailBridgeRamp(tile_start, owner, bridge_type, dir, railtype);
00431 MakeRailBridgeRamp(tile_end, owner, bridge_type, ReverseDiagDir(dir), railtype);
00432 SetTunnelBridgeReservation(tile_start, pbs_reservation);
00433 SetTunnelBridgeReservation(tile_end, pbs_reservation);
00434 break;
00435
00436 case TRANSPORT_ROAD:
00437 MakeRoadBridgeRamp(tile_start, owner, bridge_type, dir, roadtypes);
00438 MakeRoadBridgeRamp(tile_end, owner, bridge_type, ReverseDiagDir(dir), roadtypes);
00439 break;
00440
00441 case TRANSPORT_WATER:
00442 MakeAqueductBridgeRamp(tile_start, owner, dir);
00443 MakeAqueductBridgeRamp(tile_end, owner, ReverseDiagDir(dir));
00444 break;
00445
00446 default:
00447 NOT_REACHED();
00448 }
00449
00450
00451 TileIndexDiff delta = (direction == AXIS_X ? TileDiffXY(1, 0) : TileDiffXY(0, 1));
00452 for (TileIndex tile = tile_start; tile <= tile_end; tile += delta) {
00453 MarkTileDirtyByTile(tile);
00454 }
00455 }
00456
00457 if ((flags & DC_EXEC) && transport_type == TRANSPORT_RAIL) {
00458 Track track = AxisToTrack(direction);
00459 AddSideToSignalBuffer(tile_start, INVALID_DIAGDIR, _current_company);
00460 YapfNotifyTrackLayoutChange(tile_start, track);
00461 }
00462
00463
00464
00465
00466
00467 Company *c = Company::GetIfValid(_current_company);
00468 if (!(flags & DC_QUERY_COST) || (c != NULL && c->is_ai)) {
00469 bridge_len += 2;
00470
00471 switch (transport_type) {
00472 case TRANSPORT_ROAD: cost.AddCost(bridge_len * _price[PR_BUILD_ROAD] * 2); break;
00473 case TRANSPORT_RAIL: cost.AddCost(bridge_len * RailBuildCost(railtype)); break;
00474 default: break;
00475 }
00476
00477 if (c != NULL) bridge_len = CalcBridgeLenCostFactor(bridge_len);
00478
00479 if (transport_type != TRANSPORT_WATER) {
00480 cost.AddCost((int64)bridge_len * _price[PR_BUILD_BRIDGE] * GetBridgeSpec(bridge_type)->price >> 8);
00481 } else {
00482
00483 cost.AddCost((int64)bridge_len * _price[PR_BUILD_AQUEDUCT]);
00484 }
00485
00486 }
00487
00488 return cost;
00489 }
00490
00491
00502 CommandCost CmdBuildTunnel(TileIndex start_tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00503 {
00504 TransportType transport_type = Extract<TransportType, 8, 2>(p1);
00505
00506 RailType railtype = INVALID_RAILTYPE;
00507 RoadTypes rts = ROADTYPES_NONE;
00508 _build_tunnel_endtile = 0;
00509 switch (transport_type) {
00510 case TRANSPORT_RAIL:
00511 railtype = Extract<RailType, 0, 4>(p1);
00512 if (!ValParamRailtype(railtype)) return CMD_ERROR;
00513 break;
00514
00515 case TRANSPORT_ROAD:
00516 rts = Extract<RoadTypes, 0, 2>(p1);
00517 if (!HasExactlyOneBit(rts) || !HasRoadTypesAvail(_current_company, rts)) return CMD_ERROR;
00518 break;
00519
00520 default: return CMD_ERROR;
00521 }
00522
00523 uint start_z;
00524 uint end_z;
00525 Slope start_tileh = GetTileSlope(start_tile, &start_z);
00526 DiagDirection direction = GetInclinedSlopeDirection(start_tileh);
00527 if (direction == INVALID_DIAGDIR) return_cmd_error(STR_ERROR_SITE_UNSUITABLE_FOR_TUNNEL);
00528
00529 if (HasTileWaterGround(start_tile)) return_cmd_error(STR_ERROR_CAN_T_BUILD_ON_WATER);
00530
00531 CommandCost ret = DoCommand(start_tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00532 if (ret.Failed()) return ret;
00533
00534
00535
00536
00537
00538
00539 TileIndexDiff delta = TileOffsByDiagDir(direction);
00540 DiagDirection tunnel_in_way_dir;
00541 if (DiagDirToAxis(direction) == AXIS_Y) {
00542 tunnel_in_way_dir = (TileX(start_tile) < (MapMaxX() / 2)) ? DIAGDIR_SW : DIAGDIR_NE;
00543 } else {
00544 tunnel_in_way_dir = (TileY(start_tile) < (MapMaxX() / 2)) ? DIAGDIR_SE : DIAGDIR_NW;
00545 }
00546
00547 TileIndex end_tile = start_tile;
00548
00549
00550 int tiles_coef = 3;
00551
00552 int tiles = 0;
00553
00554 int tiles_bump = 25;
00555
00556 CommandCost cost(EXPENSES_CONSTRUCTION);
00557 Slope end_tileh;
00558 for (;;) {
00559 end_tile += delta;
00560 if (!IsValidTile(end_tile)) return_cmd_error(STR_ERROR_TUNNEL_THROUGH_MAP_BORDER);
00561 end_tileh = GetTileSlope(end_tile, &end_z);
00562
00563 if (start_z == end_z) break;
00564
00565 if (!_cheats.crossing_tunnels.value && IsTunnelInWayDir(end_tile, start_z, tunnel_in_way_dir)) {
00566 return_cmd_error(STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY);
00567 }
00568
00569 tiles++;
00570 if (tiles == tiles_bump) {
00571 tiles_coef++;
00572 tiles_bump *= 2;
00573 }
00574
00575 cost.AddCost(_price[PR_BUILD_TUNNEL]);
00576 cost.AddCost(cost.GetCost() >> tiles_coef);
00577 }
00578
00579
00580 cost.AddCost(_price[PR_BUILD_TUNNEL]);
00581 cost.AddCost(ret);
00582
00583
00584 _build_tunnel_endtile = end_tile;
00585
00586 if (HasTileWaterGround(end_tile)) return_cmd_error(STR_ERROR_CAN_T_BUILD_ON_WATER);
00587
00588
00589 ret = DoCommand(end_tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00590 if (ret.Failed()) return_cmd_error(STR_ERROR_UNABLE_TO_EXCAVATE_LAND);
00591 cost.AddCost(ret);
00592
00593
00594 if (end_tileh != ComplementSlope(start_tileh)) {
00595
00596
00597 ClearedObjectArea *coa = FindClearedObject(end_tile);
00598 if (coa == NULL) {
00599 coa = _cleared_object_areas.Append();
00600 coa->first_tile = end_tile;
00601 coa->area = TileArea(end_tile, 1, 1);
00602 }
00603
00604
00605 TileIndex old_first_tile = coa->first_tile;
00606 coa->first_tile = INVALID_TILE;
00607 ret = DoCommand(end_tile, end_tileh & start_tileh, 0, flags, CMD_TERRAFORM_LAND);
00608 coa->first_tile = old_first_tile;
00609 if (ret.Failed()) return_cmd_error(STR_ERROR_UNABLE_TO_EXCAVATE_LAND);
00610 cost.AddCost(ret);
00611 }
00612 cost.AddCost(_price[PR_BUILD_TUNNEL]);
00613
00614
00615 switch (transport_type) {
00616 case TRANSPORT_ROAD: cost.AddCost((tiles + 2) * _price[PR_BUILD_ROAD] * 2); break;
00617 case TRANSPORT_RAIL: cost.AddCost((tiles + 2) * RailBuildCost(railtype)); break;
00618 default: break;
00619 }
00620
00621 if (flags & DC_EXEC) {
00622 if (transport_type == TRANSPORT_RAIL) {
00623 MakeRailTunnel(start_tile, _current_company, direction, railtype);
00624 MakeRailTunnel(end_tile, _current_company, ReverseDiagDir(direction), railtype);
00625 AddSideToSignalBuffer(start_tile, INVALID_DIAGDIR, _current_company);
00626 YapfNotifyTrackLayoutChange(start_tile, DiagDirToDiagTrack(direction));
00627 } else {
00628 MakeRoadTunnel(start_tile, _current_company, direction, rts);
00629 MakeRoadTunnel(end_tile, _current_company, ReverseDiagDir(direction), rts);
00630 }
00631 }
00632
00633 return cost;
00634 }
00635
00636
00642 static inline CommandCost CheckAllowRemoveTunnelBridge(TileIndex tile)
00643 {
00644
00645 if (_current_company == OWNER_WATER || _game_mode == GM_EDITOR) return CommandCost();
00646
00647 switch (GetTunnelBridgeTransportType(tile)) {
00648 case TRANSPORT_ROAD: {
00649 RoadTypes rts = GetRoadTypes(tile);
00650 Owner road_owner = _current_company;
00651 Owner tram_owner = _current_company;
00652
00653 if (HasBit(rts, ROADTYPE_ROAD)) road_owner = GetRoadOwner(tile, ROADTYPE_ROAD);
00654 if (HasBit(rts, ROADTYPE_TRAM)) tram_owner = GetRoadOwner(tile, ROADTYPE_TRAM);
00655
00656
00657 if (road_owner == OWNER_TOWN && !(_settings_game.construction.extra_dynamite || _cheats.magic_bulldozer.value)) {
00658 return CheckTileOwnership(tile);
00659 }
00660 if (road_owner == OWNER_NONE || road_owner == OWNER_TOWN) road_owner = _current_company;
00661 if (tram_owner == OWNER_NONE) tram_owner = _current_company;
00662
00663 CommandCost ret = CheckOwnership(road_owner, tile);
00664 if (ret.Succeeded()) ret = CheckOwnership(tram_owner, tile);
00665 return ret;
00666 }
00667
00668 case TRANSPORT_RAIL:
00669 case TRANSPORT_WATER:
00670 return CheckOwnership(GetTileOwner(tile));
00671
00672 default: NOT_REACHED();
00673 }
00674 }
00675
00682 static CommandCost DoClearTunnel(TileIndex tile, DoCommandFlag flags)
00683 {
00684 CommandCost ret = CheckAllowRemoveTunnelBridge(tile);
00685 if (ret.Failed()) return ret;
00686
00687 TileIndex endtile = GetOtherTunnelEnd(tile);
00688
00689 ret = TunnelBridgeIsFree(tile, endtile);
00690 if (ret.Failed()) return ret;
00691
00692 _build_tunnel_endtile = endtile;
00693
00694 Town *t = NULL;
00695 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00696 t = ClosestTownFromTile(tile, UINT_MAX);
00697
00698
00699
00700 CommandCost ret = CheckforTownRating(flags, t, TUNNELBRIDGE_REMOVE);
00701 if (ret.Failed()) return ret;
00702 }
00703
00704
00705
00706 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00707 ChangeTownRating(t, RATING_TUNNEL_BRIDGE_DOWN_STEP, RATING_TUNNEL_BRIDGE_MINIMUM, flags);
00708 }
00709
00710 if (flags & DC_EXEC) {
00711 if (GetTunnelBridgeTransportType(tile) == TRANSPORT_RAIL) {
00712
00713 DiagDirection dir = GetTunnelBridgeDirection(tile);
00714 Track track = DiagDirToDiagTrack(dir);
00715 Owner owner = GetTileOwner(tile);
00716
00717 Train *v = NULL;
00718 if (HasTunnelBridgeReservation(tile)) {
00719 v = GetTrainForReservation(tile, track);
00720 if (v != NULL) FreeTrainTrackReservation(v);
00721 }
00722
00723 DoClearSquare(tile);
00724 DoClearSquare(endtile);
00725
00726
00727 AddSideToSignalBuffer(tile, ReverseDiagDir(dir), owner);
00728 AddSideToSignalBuffer(endtile, dir, owner);
00729
00730 YapfNotifyTrackLayoutChange(tile, track);
00731 YapfNotifyTrackLayoutChange(endtile, track);
00732
00733 if (v != NULL) TryPathReserve(v);
00734 } else {
00735 DoClearSquare(tile);
00736 DoClearSquare(endtile);
00737 }
00738 }
00739 return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_CLEAR_TUNNEL] * (GetTunnelBridgeLength(tile, endtile) + 2));
00740 }
00741
00742
00749 static CommandCost DoClearBridge(TileIndex tile, DoCommandFlag flags)
00750 {
00751 CommandCost ret = CheckAllowRemoveTunnelBridge(tile);
00752 if (ret.Failed()) return ret;
00753
00754 TileIndex endtile = GetOtherBridgeEnd(tile);
00755
00756 ret = TunnelBridgeIsFree(tile, endtile);
00757 if (ret.Failed()) return ret;
00758
00759 DiagDirection direction = GetTunnelBridgeDirection(tile);
00760 TileIndexDiff delta = TileOffsByDiagDir(direction);
00761
00762 Town *t = NULL;
00763 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00764 t = ClosestTownFromTile(tile, UINT_MAX);
00765
00766
00767
00768 CommandCost ret = CheckforTownRating(flags, t, TUNNELBRIDGE_REMOVE);
00769 if (ret.Failed()) return ret;
00770 }
00771
00772
00773
00774 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00775 ChangeTownRating(t, RATING_TUNNEL_BRIDGE_DOWN_STEP, RATING_TUNNEL_BRIDGE_MINIMUM, flags);
00776 }
00777
00778 Money base_cost = (GetTunnelBridgeTransportType(tile) != TRANSPORT_WATER) ? _price[PR_CLEAR_BRIDGE] : _price[PR_CLEAR_AQUEDUCT];
00779
00780 if (flags & DC_EXEC) {
00781
00782 bool rail = GetTunnelBridgeTransportType(tile) == TRANSPORT_RAIL;
00783 Owner owner = GetTileOwner(tile);
00784 uint height = GetBridgeHeight(tile);
00785 Train *v = NULL;
00786
00787 if (rail && HasTunnelBridgeReservation(tile)) {
00788 v = GetTrainForReservation(tile, DiagDirToDiagTrack(direction));
00789 if (v != NULL) FreeTrainTrackReservation(v);
00790 }
00791
00792 DoClearSquare(tile);
00793 DoClearSquare(endtile);
00794 for (TileIndex c = tile + delta; c != endtile; c += delta) {
00795
00796 if (IsNormalRoadTile(c) && GetRoadside(c) == ROADSIDE_TREES) {
00797 uint minz = GetTileMaxZ(c) + 3 * TILE_HEIGHT;
00798 if (height < minz) SetRoadside(c, ROADSIDE_PAVED);
00799 }
00800 ClearBridgeMiddle(c);
00801 MarkTileDirtyByTile(c);
00802 }
00803
00804 if (rail) {
00805
00806 AddSideToSignalBuffer(tile, ReverseDiagDir(direction), owner);
00807 AddSideToSignalBuffer(endtile, direction, owner);
00808
00809 Track track = DiagDirToDiagTrack(direction);
00810 YapfNotifyTrackLayoutChange(tile, track);
00811 YapfNotifyTrackLayoutChange(endtile, track);
00812
00813 if (v != NULL) TryPathReserve(v, true);
00814 }
00815 }
00816
00817 return CommandCost(EXPENSES_CONSTRUCTION, (GetTunnelBridgeLength(tile, endtile) + 2) * base_cost);
00818 }
00819
00826 static CommandCost ClearTile_TunnelBridge(TileIndex tile, DoCommandFlag flags)
00827 {
00828 if (IsTunnel(tile)) {
00829 if (flags & DC_AUTO) return_cmd_error(STR_ERROR_MUST_DEMOLISH_TUNNEL_FIRST);
00830 return DoClearTunnel(tile, flags);
00831 } else {
00832 if (flags & DC_AUTO) return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00833 return DoClearBridge(tile, flags);
00834 }
00835 }
00836
00847 static inline void DrawPillar(const PalSpriteID *psid, int x, int y, int z, int w, int h, const SubSprite *subsprite)
00848 {
00849 static const int PILLAR_Z_OFFSET = TILE_HEIGHT - BRIDGE_Z_START;
00850 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);
00851 }
00852
00864 static int DrawPillarColumn(int z_bottom, int z_top, const PalSpriteID *psid, int x, int y, int w, int h)
00865 {
00866 int cur_z;
00867 for (cur_z = z_top; cur_z >= z_bottom; cur_z -= TILE_HEIGHT) {
00868 DrawPillar(psid, x, y, cur_z, w, h, NULL);
00869 }
00870 return cur_z;
00871 }
00872
00884 static void DrawBridgePillars(const PalSpriteID *psid, const TileInfo *ti, Axis axis, bool drawfarpillar, int x, int y, int z_bridge)
00885 {
00886 static const int bounding_box_size[2] = {16, 2};
00887 static const int back_pillar_offset[2] = { 0, 9};
00888
00889 static const int INF = 1000;
00890 static const SubSprite half_pillar_sub_sprite[2][2] = {
00891 { { -14, -INF, INF, INF }, { -INF, -INF, -15, INF } },
00892 { { -INF, -INF, 15, INF }, { 16, -INF, INF, INF } },
00893 };
00894
00895 if (psid->sprite == 0) return;
00896
00897
00898 DiagDirection south_dir = AxisToDiagDir(axis);
00899 int z_front_north = ti->z;
00900 int z_back_north = ti->z;
00901 int z_front_south = ti->z;
00902 int z_back_south = ti->z;
00903 GetSlopeZOnEdge(ti->tileh, south_dir, &z_front_south, &z_back_south);
00904 GetSlopeZOnEdge(ti->tileh, ReverseDiagDir(south_dir), &z_front_north, &z_back_north);
00905
00906
00907 int z_front = max(z_front_north, z_front_south);
00908 int z_back = max(z_back_north, z_back_south);
00909
00910
00911 int w = bounding_box_size[axis];
00912 int h = bounding_box_size[OtherAxis(axis)];
00913
00914 int x_back = x - back_pillar_offset[axis];
00915 int y_back = y - back_pillar_offset[OtherAxis(axis)];
00916
00917
00918 int bottom_z = DrawPillarColumn(z_front, z_bridge, psid, x, y, w, h);
00919 if (z_front_north < z_front) DrawPillar(psid, x, y, bottom_z, w, h, &half_pillar_sub_sprite[axis][0]);
00920 if (z_front_south < z_front) DrawPillar(psid, x, y, bottom_z, w, h, &half_pillar_sub_sprite[axis][1]);
00921
00922
00923 int z_bridge_back = z_bridge - 2 * (int)TILE_HEIGHT;
00924 if (drawfarpillar && (z_back_north <= z_bridge_back || z_back_south <= z_bridge_back)) {
00925 bottom_z = DrawPillarColumn(z_back, z_bridge_back, psid, x_back, y_back, w, h);
00926 if (z_back_north < z_back) DrawPillar(psid, x_back, y_back, bottom_z, w, h, &half_pillar_sub_sprite[axis][0]);
00927 if (z_back_south < z_back) DrawPillar(psid, x_back, y_back, bottom_z, w, h, &half_pillar_sub_sprite[axis][1]);
00928 }
00929 }
00930
00940 static void DrawBridgeTramBits(int x, int y, byte z, int offset, bool overlay, bool head)
00941 {
00942 static const SpriteID tram_offsets[2][6] = { { 107, 108, 109, 110, 111, 112 }, { 4, 5, 15, 16, 17, 18 } };
00943 static const SpriteID back_offsets[6] = { 95, 96, 99, 102, 100, 101 };
00944 static const SpriteID front_offsets[6] = { 97, 98, 103, 106, 104, 105 };
00945
00946 static const uint size_x[6] = { 1, 16, 16, 1, 16, 1 };
00947 static const uint size_y[6] = { 16, 1, 1, 16, 1, 16 };
00948 static const uint front_bb_offset_x[6] = { 15, 0, 0, 15, 0, 15 };
00949 static const uint front_bb_offset_y[6] = { 0, 15, 15, 0, 15, 0 };
00950
00951
00952
00953 if (head || !IsInvisibilitySet(TO_BRIDGES)) {
00954 AddSortableSpriteToDraw(SPR_TRAMWAY_BASE + tram_offsets[overlay][offset], PAL_NONE,
00955 x, y, size_x[offset], size_y[offset], 0x28, z,
00956 !head && IsTransparencySet(TO_BRIDGES));
00957 }
00958
00959
00960 if (!IsInvisibilitySet(TO_CATENARY)) {
00961 AddSortableSpriteToDraw(SPR_TRAMWAY_BASE + back_offsets[offset], PAL_NONE,
00962 x, y, size_x[offset], size_y[offset], 0x28, z,
00963 IsTransparencySet(TO_CATENARY));
00964 }
00965
00966
00967 EndSpriteCombine();
00968 StartSpriteCombine();
00969
00970
00971 if (!IsInvisibilitySet(TO_CATENARY)) {
00972 AddSortableSpriteToDraw(SPR_TRAMWAY_BASE + front_offsets[offset], PAL_NONE,
00973 x, y, size_x[offset] + front_bb_offset_x[offset], size_y[offset] + front_bb_offset_y[offset], 0x28, z,
00974 IsTransparencySet(TO_CATENARY), front_bb_offset_x[offset], front_bb_offset_y[offset]);
00975 }
00976 }
00977
00991 static void DrawTile_TunnelBridge(TileInfo *ti)
00992 {
00993 TransportType transport_type = GetTunnelBridgeTransportType(ti->tile);
00994 DiagDirection tunnelbridge_direction = GetTunnelBridgeDirection(ti->tile);
00995
00996 if (IsTunnel(ti->tile)) {
00997
00998
00999
01000
01001
01002
01003
01004
01005
01006 static const int _tunnel_BB[4][12] = {
01007
01008
01009 { 1, 0, -15, -14, 0, 15, 16, 1, 0, 1, 16, 15 },
01010 { 0, 1, -14, -15, 15, 0, 1, 16, 1, 0, 15, 16 },
01011 { 1, 0, -15, -14, 0, 15, 16, 1, 0, 1, 16, 15 },
01012 { 0, 1, -14, -15, 15, 0, 1, 16, 1, 0, 15, 16 },
01013 };
01014 const int *BB_data = _tunnel_BB[tunnelbridge_direction];
01015
01016 bool catenary = false;
01017
01018 SpriteID image;
01019 if (transport_type == TRANSPORT_RAIL) {
01020 image = GetRailTypeInfo(GetRailType(ti->tile))->base_sprites.tunnel;
01021 } else {
01022 image = SPR_TUNNEL_ENTRY_REAR_ROAD;
01023 }
01024
01025 if (HasTunnelBridgeSnowOrDesert(ti->tile)) image += 32;
01026
01027 image += tunnelbridge_direction * 2;
01028 DrawGroundSprite(image, PAL_NONE);
01029
01030
01031 if (_game_mode != GM_MENU && _settings_client.gui.show_track_reservation && (transport_type == TRANSPORT_RAIL && HasTunnelBridgeReservation(ti->tile))) {
01032 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(ti->tile));
01033 DrawGroundSprite(DiagDirToAxis(tunnelbridge_direction) == AXIS_X ? rti->base_sprites.single_x : rti->base_sprites.single_y, PALETTE_CRASH);
01034 }
01035
01036 if (transport_type == TRANSPORT_ROAD) {
01037 RoadTypes rts = GetRoadTypes(ti->tile);
01038
01039 if (HasBit(rts, ROADTYPE_TRAM)) {
01040 static const SpriteID tunnel_sprites[2][4] = { { 28, 78, 79, 27 }, { 5, 76, 77, 4 } };
01041
01042 DrawGroundSprite(SPR_TRAMWAY_BASE + tunnel_sprites[rts - ROADTYPES_TRAM][tunnelbridge_direction], PAL_NONE);
01043
01044
01045 if (!IsInvisibilitySet(TO_CATENARY)) {
01046 catenary = true;
01047 StartSpriteCombine();
01048 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);
01049 }
01050 }
01051 } else {
01052 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(ti->tile));
01053 if (rti->UsesOverlay()) {
01054 SpriteID surface = GetCustomRailSprite(rti, ti->tile, RTSG_TUNNEL);
01055 if (surface != 0) DrawGroundSprite(surface + tunnelbridge_direction, PAL_NONE);
01056 }
01057
01058 if (HasCatenaryDrawn(GetRailType(ti->tile))) {
01059
01060 DrawCatenary(ti);
01061
01062 catenary = true;
01063 StartSpriteCombine();
01064
01065 DrawCatenaryOnTunnel(ti);
01066 }
01067 }
01068
01069 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);
01070
01071 if (catenary) EndSpriteCombine();
01072
01073
01074 AddSortableSpriteToDraw(SPR_EMPTY_BOUNDING_BOX, PAL_NONE, ti->x, ti->y, BB_data[6], BB_data[7], TILE_HEIGHT, ti->z);
01075 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);
01076
01077 DrawBridgeMiddle(ti);
01078 } else {
01079 const PalSpriteID *psid;
01080 int base_offset;
01081 bool ice = HasTunnelBridgeSnowOrDesert(ti->tile);
01082
01083 if (transport_type == TRANSPORT_RAIL) {
01084 base_offset = GetRailTypeInfo(GetRailType(ti->tile))->bridge_offset;
01085 assert(base_offset != 8);
01086 } else {
01087 base_offset = 8;
01088 }
01089
01090
01091 assert( (base_offset & 0x07) == 0x00);
01092
01093 DrawFoundation(ti, GetBridgeFoundation(ti->tileh, DiagDirToAxis(tunnelbridge_direction)));
01094
01095
01096 base_offset += (6 - tunnelbridge_direction) % 4;
01097
01098 if (ti->tileh == SLOPE_FLAT) base_offset += 4;
01099
01100
01101 if (transport_type != TRANSPORT_WATER) {
01102 psid = &GetBridgeSpriteTable(GetBridgeType(ti->tile), BRIDGE_PIECE_HEAD)[base_offset];
01103 } else {
01104 psid = _aqueduct_sprites + base_offset;
01105 }
01106
01107 if (!ice) {
01108 TileIndex next = ti->tile + TileOffsByDiagDir(tunnelbridge_direction);
01109 if (ti->tileh != SLOPE_FLAT && ti->z == 0 && HasTileWaterClass(next) && GetWaterClass(next) == WATER_CLASS_SEA) {
01110 DrawShoreTile(ti->tileh);
01111 } else {
01112 DrawClearLandTile(ti, 3);
01113 }
01114 } else {
01115 DrawGroundSprite(SPR_FLAT_SNOW_DESERT_TILE + SlopeToSpriteOffset(ti->tileh), PAL_NONE);
01116 }
01117
01118
01119
01120
01121 if (transport_type == TRANSPORT_ROAD || transport_type == TRANSPORT_RAIL) StartSpriteCombine();
01122
01123
01124
01125
01126
01127 AddSortableSpriteToDraw(psid->sprite, psid->pal, ti->x, ti->y, 16, 16, ti->tileh == SLOPE_FLAT ? 0 : 8, ti->z);
01128
01129 if (transport_type == TRANSPORT_ROAD) {
01130 RoadTypes rts = GetRoadTypes(ti->tile);
01131
01132 if (HasBit(rts, ROADTYPE_TRAM)) {
01133 uint offset = tunnelbridge_direction;
01134 uint z = ti->z;
01135 if (ti->tileh != SLOPE_FLAT) {
01136 offset = (offset + 1) & 1;
01137 z += TILE_HEIGHT;
01138 } else {
01139 offset += 2;
01140 }
01141
01142 DrawBridgeTramBits(ti->x, ti->y, z, offset, HasBit(rts, ROADTYPE_ROAD), true);
01143 }
01144 EndSpriteCombine();
01145 } else if (transport_type == TRANSPORT_RAIL) {
01146 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(ti->tile));
01147 if (rti->UsesOverlay()) {
01148 SpriteID surface = GetCustomRailSprite(rti, ti->tile, RTSG_BRIDGE);
01149 if (surface != 0) {
01150 if (HasBridgeFlatRamp(ti->tileh, DiagDirToAxis(tunnelbridge_direction))) {
01151 AddSortableSpriteToDraw(surface + ((DiagDirToAxis(tunnelbridge_direction) == AXIS_X) ? RTBO_X : RTBO_Y), PAL_NONE, ti->x, ti->y, 16, 16, 0, ti->z + 8);
01152 } else {
01153 AddSortableSpriteToDraw(surface + RTBO_SLOPE + tunnelbridge_direction, PAL_NONE, ti->x, ti->y, 16, 16, 8, ti->z);
01154 }
01155 }
01156
01157
01158
01159 } else if (_game_mode != GM_MENU &&_settings_client.gui.show_track_reservation && HasTunnelBridgeReservation(ti->tile)) {
01160 if (HasBridgeFlatRamp(ti->tileh, DiagDirToAxis(tunnelbridge_direction))) {
01161 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);
01162 } else {
01163 AddSortableSpriteToDraw(rti->base_sprites.single_sloped + tunnelbridge_direction, PALETTE_CRASH, ti->x, ti->y, 16, 16, 8, ti->z);
01164 }
01165 }
01166 EndSpriteCombine();
01167 if (HasCatenaryDrawn(GetRailType(ti->tile))) {
01168 DrawCatenary(ti);
01169 }
01170 }
01171
01172 DrawBridgeMiddle(ti);
01173 }
01174 }
01175
01176
01195 static BridgePieces CalcBridgePiece(uint north, uint south)
01196 {
01197 if (north == 1) {
01198 return BRIDGE_PIECE_NORTH;
01199 } else if (south == 1) {
01200 return BRIDGE_PIECE_SOUTH;
01201 } else if (north < south) {
01202 return north & 1 ? BRIDGE_PIECE_INNER_SOUTH : BRIDGE_PIECE_INNER_NORTH;
01203 } else if (north > south) {
01204 return south & 1 ? BRIDGE_PIECE_INNER_NORTH : BRIDGE_PIECE_INNER_SOUTH;
01205 } else {
01206 return north & 1 ? BRIDGE_PIECE_MIDDLE_EVEN : BRIDGE_PIECE_MIDDLE_ODD;
01207 }
01208 }
01209
01210
01211 void DrawBridgeMiddle(const TileInfo *ti)
01212 {
01213
01214
01215
01216
01217
01218
01219
01220
01221
01222
01223
01224
01225
01226
01227
01228
01229 if (!IsBridgeAbove(ti->tile)) return;
01230
01231 TileIndex rampnorth = GetNorthernBridgeEnd(ti->tile);
01232 TileIndex rampsouth = GetSouthernBridgeEnd(ti->tile);
01233 TransportType transport_type = GetTunnelBridgeTransportType(rampsouth);
01234
01235 Axis axis = GetBridgeAxis(ti->tile);
01236 BridgePieces piece = CalcBridgePiece(
01237 GetTunnelBridgeLength(ti->tile, rampnorth) + 1,
01238 GetTunnelBridgeLength(ti->tile, rampsouth) + 1
01239 );
01240
01241 const PalSpriteID *psid;
01242 bool drawfarpillar;
01243 if (transport_type != TRANSPORT_WATER) {
01244 BridgeType type = GetBridgeType(rampsouth);
01245 drawfarpillar = !HasBit(GetBridgeSpec(type)->flags, 0);
01246
01247 uint base_offset;
01248 if (transport_type == TRANSPORT_RAIL) {
01249 base_offset = GetRailTypeInfo(GetRailType(rampsouth))->bridge_offset;
01250 } else {
01251 base_offset = 8;
01252 }
01253
01254 psid = base_offset + GetBridgeSpriteTable(type, piece);
01255 } else {
01256 drawfarpillar = true;
01257 psid = _aqueduct_sprites;
01258 }
01259
01260 if (axis != AXIS_X) psid += 4;
01261
01262 int x = ti->x;
01263 int y = ti->y;
01264 uint bridge_z = GetBridgeHeight(rampsouth);
01265 uint z = bridge_z - BRIDGE_Z_START;
01266
01267
01268 AddSortableSpriteToDraw(SPR_EMPTY_BOUNDING_BOX, PAL_NONE, x, y, 16, 16, 1, bridge_z - TILE_HEIGHT + BB_Z_SEPARATOR);
01269
01270
01271 if (transport_type == TRANSPORT_ROAD || transport_type == TRANSPORT_RAIL) StartSpriteCombine();
01272
01273
01274 if (!IsInvisibilitySet(TO_BRIDGES)) {
01275 if (axis == AXIS_X) {
01276 AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 16, 1, 0x28, z, IsTransparencySet(TO_BRIDGES), 0, 0, BRIDGE_Z_START);
01277 } else {
01278 AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 1, 16, 0x28, z, IsTransparencySet(TO_BRIDGES), 0, 0, BRIDGE_Z_START);
01279 }
01280 }
01281
01282 psid++;
01283
01284 if (transport_type == TRANSPORT_ROAD) {
01285 RoadTypes rts = GetRoadTypes(rampsouth);
01286
01287 if (HasBit(rts, ROADTYPE_TRAM)) {
01288
01289 DrawBridgeTramBits(x, y, bridge_z, axis ^ 1, HasBit(rts, ROADTYPE_ROAD), false);
01290 } else {
01291 EndSpriteCombine();
01292 StartSpriteCombine();
01293 }
01294 } else if (transport_type == TRANSPORT_RAIL) {
01295 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(rampsouth));
01296 if (rti->UsesOverlay()) {
01297 SpriteID surface = GetCustomRailSprite(rti, rampsouth, RTSG_BRIDGE, TCX_ON_BRIDGE);
01298 if (surface != 0) {
01299 AddSortableSpriteToDraw(surface + axis, PAL_NONE, x, y, 16, 16, 0, bridge_z, IsTransparencySet(TO_BRIDGES));
01300 }
01301 }
01302 EndSpriteCombine();
01303
01304 if (HasCatenaryDrawn(GetRailType(rampsouth))) {
01305 DrawCatenaryOnBridge(ti);
01306 }
01307 }
01308
01309
01310 if (!IsInvisibilitySet(TO_BRIDGES)) {
01311 if (axis == AXIS_X) {
01312 y += 12;
01313 if (psid->sprite & SPRITE_MASK) AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 16, 4, 0x28, z, IsTransparencySet(TO_BRIDGES), 0, 3, BRIDGE_Z_START);
01314 } else {
01315 x += 12;
01316 if (psid->sprite & SPRITE_MASK) AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 4, 16, 0x28, z, IsTransparencySet(TO_BRIDGES), 3, 0, BRIDGE_Z_START);
01317 }
01318 }
01319
01320
01321 if (transport_type == TRANSPORT_ROAD) EndSpriteCombine();
01322
01323
01324 if (IsInvisibilitySet(TO_BRIDGES)) return;
01325
01326 psid++;
01327 if (ti->z + 5 == z) {
01328
01329 if (psid->sprite != 0) {
01330 SpriteID image = psid->sprite;
01331 SpriteID pal = psid->pal;
01332 if (IsTransparencySet(TO_BRIDGES)) {
01333 SetBit(image, PALETTE_MODIFIER_TRANSPARENT);
01334 pal = PALETTE_TO_TRANSPARENT;
01335 }
01336
01337 DrawGroundSpriteAt(image, pal, x - ti->x, y - ti->y, z - ti->z);
01338 }
01339 } else if (_settings_client.gui.bridge_pillars) {
01340
01341 DrawBridgePillars(psid, ti, axis, drawfarpillar, x, y, z);
01342 }
01343 }
01344
01345
01346 static uint GetSlopeZ_TunnelBridge(TileIndex tile, uint x, uint y)
01347 {
01348 uint z;
01349 Slope tileh = GetTileSlope(tile, &z);
01350
01351 x &= 0xF;
01352 y &= 0xF;
01353
01354 if (IsTunnel(tile)) {
01355 uint pos = (DiagDirToAxis(GetTunnelBridgeDirection(tile)) == AXIS_X ? y : x);
01356
01357
01358 if (5 <= pos && pos <= 10) return z;
01359 } else {
01360 DiagDirection dir = GetTunnelBridgeDirection(tile);
01361 uint pos = (DiagDirToAxis(dir) == AXIS_X ? y : x);
01362
01363 z += ApplyFoundationToSlope(GetBridgeFoundation(tileh, DiagDirToAxis(dir)), &tileh);
01364
01365
01366 if (5 <= pos && pos <= 10) {
01367 uint delta;
01368
01369 if (tileh != SLOPE_FLAT) return z + TILE_HEIGHT;
01370
01371 switch (dir) {
01372 default: NOT_REACHED();
01373 case DIAGDIR_NE: delta = (TILE_SIZE - 1 - x) / 2; break;
01374 case DIAGDIR_SE: delta = y / 2; break;
01375 case DIAGDIR_SW: delta = x / 2; break;
01376 case DIAGDIR_NW: delta = (TILE_SIZE - 1 - y) / 2; break;
01377 }
01378 return z + 1 + delta;
01379 }
01380 }
01381
01382 return z + GetPartialZ(x, y, tileh);
01383 }
01384
01385 static Foundation GetFoundation_TunnelBridge(TileIndex tile, Slope tileh)
01386 {
01387 return IsTunnel(tile) ? FOUNDATION_NONE : GetBridgeFoundation(tileh, DiagDirToAxis(GetTunnelBridgeDirection(tile)));
01388 }
01389
01390 static void GetTileDesc_TunnelBridge(TileIndex tile, TileDesc *td)
01391 {
01392 TransportType tt = GetTunnelBridgeTransportType(tile);
01393
01394 if (IsTunnel(tile)) {
01395 td->str = (tt == TRANSPORT_RAIL) ? STR_LAI_TUNNEL_DESCRIPTION_RAILROAD : STR_LAI_TUNNEL_DESCRIPTION_ROAD;
01396 } else {
01397 td->str = (tt == TRANSPORT_WATER) ? STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT : GetBridgeSpec(GetBridgeType(tile))->transport_name[tt];
01398 }
01399 td->owner[0] = GetTileOwner(tile);
01400
01401 Owner road_owner = INVALID_OWNER;
01402 Owner tram_owner = INVALID_OWNER;
01403 RoadTypes rts = GetRoadTypes(tile);
01404 if (HasBit(rts, ROADTYPE_ROAD)) road_owner = GetRoadOwner(tile, ROADTYPE_ROAD);
01405 if (HasBit(rts, ROADTYPE_TRAM)) tram_owner = GetRoadOwner(tile, ROADTYPE_TRAM);
01406
01407
01408 if ((tram_owner != INVALID_OWNER && tram_owner != td->owner[0]) ||
01409 (road_owner != INVALID_OWNER && road_owner != td->owner[0])) {
01410 uint i = 1;
01411 if (road_owner != INVALID_OWNER) {
01412 td->owner_type[i] = STR_LAND_AREA_INFORMATION_ROAD_OWNER;
01413 td->owner[i] = road_owner;
01414 i++;
01415 }
01416 if (tram_owner != INVALID_OWNER) {
01417 td->owner_type[i] = STR_LAND_AREA_INFORMATION_TRAM_OWNER;
01418 td->owner[i] = tram_owner;
01419 }
01420 }
01421
01422 if (tt == TRANSPORT_RAIL) {
01423 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(tile));
01424 td->rail_speed = rti->max_speed;
01425
01426 if (!IsTunnel(tile)) {
01427 uint16 spd = GetBridgeSpec(GetBridgeType(tile))->speed;
01428 if (td->rail_speed == 0 || spd < td->rail_speed) {
01429 td->rail_speed = spd;
01430 }
01431 }
01432 }
01433 }
01434
01435
01436 static void TileLoop_TunnelBridge(TileIndex tile)
01437 {
01438 bool snow_or_desert = HasTunnelBridgeSnowOrDesert(tile);
01439 switch (_settings_game.game_creation.landscape) {
01440 case LT_ARCTIC: {
01441
01442
01443
01444 uint z = IsBridge(tile) ? GetTileMaxZ(tile) : GetTileZ(tile);
01445 if (snow_or_desert != (z > GetSnowLine())) {
01446 SetTunnelBridgeSnowOrDesert(tile, !snow_or_desert);
01447 MarkTileDirtyByTile(tile);
01448 }
01449 break;
01450 }
01451
01452 case LT_TROPIC:
01453 if (GetTropicZone(tile) == TROPICZONE_DESERT && !snow_or_desert) {
01454 SetTunnelBridgeSnowOrDesert(tile, true);
01455 MarkTileDirtyByTile(tile);
01456 }
01457 break;
01458
01459 default:
01460 break;
01461 }
01462 }
01463
01464 static TrackStatus GetTileTrackStatus_TunnelBridge(TileIndex tile, TransportType mode, uint sub_mode, DiagDirection side)
01465 {
01466 TransportType transport_type = GetTunnelBridgeTransportType(tile);
01467 if (transport_type != mode || (transport_type == TRANSPORT_ROAD && (GetRoadTypes(tile) & sub_mode) == 0)) return 0;
01468
01469 DiagDirection dir = GetTunnelBridgeDirection(tile);
01470 if (side != INVALID_DIAGDIR && side != ReverseDiagDir(dir)) return 0;
01471 return CombineTrackStatus(TrackBitsToTrackdirBits(DiagDirToDiagTrackBits(dir)), TRACKDIR_BIT_NONE);
01472 }
01473
01474 static void ChangeTileOwner_TunnelBridge(TileIndex tile, Owner old_owner, Owner new_owner)
01475 {
01476 for (RoadType rt = ROADTYPE_ROAD; rt < ROADTYPE_END; rt++) {
01477
01478 if (GetRoadOwner(tile, rt) == old_owner) {
01479 SetRoadOwner(tile, rt, new_owner == INVALID_OWNER ? OWNER_NONE : new_owner);
01480 }
01481 }
01482
01483 if (!IsTileOwner(tile, old_owner)) return;
01484
01485 if (new_owner != INVALID_OWNER) {
01486 SetTileOwner(tile, new_owner);
01487 } else {
01488 if (GetTunnelBridgeTransportType(tile) == TRANSPORT_RAIL) {
01489
01490
01491 CommandCost ret = DoCommand(tile, 0, 0, DC_EXEC | DC_BANKRUPT, CMD_LANDSCAPE_CLEAR);
01492 assert(ret.Succeeded());
01493 } else {
01494
01495 SetTileOwner(tile, OWNER_NONE);
01496 }
01497 }
01498 }
01499
01505 static const byte TUNNEL_SOUND_FRAME = 1;
01506
01515 extern const byte _tunnel_visibility_frame[DIAGDIR_END] = {12, 8, 8, 12};
01516
01517 static VehicleEnterTileStatus VehicleEnter_TunnelBridge(Vehicle *v, TileIndex tile, int x, int y)
01518 {
01519 int z = GetSlopeZ(x, y) - v->z_pos;
01520
01521 if (abs(z) > 2) return VETSB_CANNOT_ENTER;
01522
01523 const DiagDirection dir = GetTunnelBridgeDirection(tile);
01524
01525 const DiagDirection vdir = DirToDiagDir(v->direction);
01526
01527 byte pos = (DiagDirToAxis(vdir) == AXIS_X ? x : y) & TILE_UNIT_MASK;
01528
01529 byte frame = (vdir == DIAGDIR_NE || vdir == DIAGDIR_NW) ? TILE_SIZE - 1 - pos : pos;
01530
01531 if (IsTunnel(tile)) {
01532 if (v->type == VEH_TRAIN) {
01533 Train *t = Train::From(v);
01534
01535 if (t->track != TRACK_BIT_WORMHOLE && dir == vdir) {
01536 if (t->IsFrontEngine() && frame == TUNNEL_SOUND_FRAME) {
01537 if (!PlayVehicleSound(t, VSE_TUNNEL) && RailVehInfo(t->engine_type)->engclass == 0) {
01538 SndPlayVehicleFx(SND_05_TRAIN_THROUGH_TUNNEL, v);
01539 }
01540 return VETSB_CONTINUE;
01541 }
01542 if (frame == _tunnel_visibility_frame[dir]) {
01543 t->tile = tile;
01544 t->track = TRACK_BIT_WORMHOLE;
01545 t->vehstatus |= VS_HIDDEN;
01546 return VETSB_ENTERED_WORMHOLE;
01547 }
01548 }
01549
01550 if (dir == ReverseDiagDir(vdir) && frame == TILE_SIZE - _tunnel_visibility_frame[dir] && z == 0) {
01551
01552 t->tile = tile;
01553 t->track = DiagDirToDiagTrackBits(vdir);
01554 assert(t->track);
01555 t->vehstatus &= ~VS_HIDDEN;
01556 return VETSB_ENTERED_WORMHOLE;
01557 }
01558 } else if (v->type == VEH_ROAD) {
01559 RoadVehicle *rv = RoadVehicle::From(v);
01560
01561
01562 if (rv->state != RVSB_WORMHOLE && dir == vdir) {
01563 if (frame == _tunnel_visibility_frame[dir]) {
01564
01565 assert(frame == rv->frame + 1);
01566 rv->tile = tile;
01567 rv->state = RVSB_WORMHOLE;
01568 rv->vehstatus |= VS_HIDDEN;
01569 return VETSB_ENTERED_WORMHOLE;
01570 } else {
01571 return VETSB_CONTINUE;
01572 }
01573 }
01574
01575
01576 if (dir == ReverseDiagDir(vdir) && frame == TILE_SIZE - _tunnel_visibility_frame[dir] && z == 0) {
01577 rv->tile = tile;
01578 rv->state = DiagDirToDiagTrackdir(vdir);
01579 rv->frame = frame;
01580 rv->vehstatus &= ~VS_HIDDEN;
01581 return VETSB_ENTERED_WORMHOLE;
01582 }
01583 }
01584 } else {
01585 if (v->type != VEH_SHIP) {
01586
01587 uint16 spd = GetBridgeSpec(GetBridgeType(tile))->speed;
01588
01589 if (v->type == VEH_ROAD) spd *= 2;
01590 Vehicle *first = v->First();
01591 first->cur_speed = min(first->cur_speed, spd);
01592 }
01593
01594 if (vdir == dir) {
01595
01596 if (frame != TILE_SIZE - 1) return VETSB_CONTINUE;
01597 switch (v->type) {
01598 case VEH_TRAIN: {
01599 Train *t = Train::From(v);
01600 t->track = TRACK_BIT_WORMHOLE;
01601 ClrBit(t->gv_flags, GVF_GOINGUP_BIT);
01602 ClrBit(t->gv_flags, GVF_GOINGDOWN_BIT);
01603 break;
01604 }
01605
01606 case VEH_ROAD: {
01607 RoadVehicle *rv = RoadVehicle::From(v);
01608 rv->state = RVSB_WORMHOLE;
01609
01610 ClrBit(rv->gv_flags, GVF_GOINGUP_BIT);
01611 ClrBit(rv->gv_flags, GVF_GOINGDOWN_BIT);
01612 break;
01613 }
01614
01615 case VEH_SHIP:
01616 Ship::From(v)->state = TRACK_BIT_WORMHOLE;
01617 break;
01618
01619 default: NOT_REACHED();
01620 }
01621 return VETSB_ENTERED_WORMHOLE;
01622 } else if (vdir == ReverseDiagDir(dir)) {
01623 v->tile = tile;
01624 switch (v->type) {
01625 case VEH_TRAIN: {
01626 Train *t = Train::From(v);
01627 if (t->track == TRACK_BIT_WORMHOLE) {
01628 t->track = DiagDirToDiagTrackBits(vdir);
01629 return VETSB_ENTERED_WORMHOLE;
01630 }
01631 break;
01632 }
01633
01634 case VEH_ROAD: {
01635 RoadVehicle *rv = RoadVehicle::From(v);
01636 if (rv->state == RVSB_WORMHOLE) {
01637 rv->state = DiagDirToDiagTrackdir(vdir);
01638 rv->frame = 0;
01639 return VETSB_ENTERED_WORMHOLE;
01640 }
01641 break;
01642 }
01643
01644 case VEH_SHIP: {
01645 Ship *ship = Ship::From(v);
01646 if (ship->state == TRACK_BIT_WORMHOLE) {
01647 ship->state = DiagDirToDiagTrackBits(vdir);
01648 return VETSB_ENTERED_WORMHOLE;
01649 }
01650 break;
01651 }
01652
01653 default: NOT_REACHED();
01654 }
01655 }
01656 }
01657 return VETSB_CONTINUE;
01658 }
01659
01660 static CommandCost TerraformTile_TunnelBridge(TileIndex tile, DoCommandFlag flags, uint z_new, Slope tileh_new)
01661 {
01662 if (_settings_game.construction.build_on_slopes && AutoslopeEnabled() && IsBridge(tile) && GetTunnelBridgeTransportType(tile) != TRANSPORT_WATER) {
01663 DiagDirection direction = GetTunnelBridgeDirection(tile);
01664 Axis axis = DiagDirToAxis(direction);
01665 CommandCost res;
01666 uint z_old;
01667 Slope tileh_old = GetTileSlope(tile, &z_old);
01668
01669
01670 if ((direction == DIAGDIR_NW) || (direction == DIAGDIR_NE)) {
01671 CheckBridgeSlopeSouth(axis, &tileh_old, &z_old);
01672 res = CheckBridgeSlopeSouth(axis, &tileh_new, &z_new);
01673 } else {
01674 CheckBridgeSlopeNorth(axis, &tileh_old, &z_old);
01675 res = CheckBridgeSlopeNorth(axis, &tileh_new, &z_new);
01676 }
01677
01678
01679 if (res.Succeeded() && (z_old == z_new) && (tileh_old == tileh_new)) return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
01680 }
01681
01682 return DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
01683 }
01684
01685 extern const TileTypeProcs _tile_type_tunnelbridge_procs = {
01686 DrawTile_TunnelBridge,
01687 GetSlopeZ_TunnelBridge,
01688 ClearTile_TunnelBridge,
01689 NULL,
01690 GetTileDesc_TunnelBridge,
01691 GetTileTrackStatus_TunnelBridge,
01692 NULL,
01693 NULL,
01694 TileLoop_TunnelBridge,
01695 ChangeTileOwner_TunnelBridge,
01696 NULL,
01697 VehicleEnter_TunnelBridge,
01698 GetFoundation_TunnelBridge,
01699 TerraformTile_TunnelBridge,
01700 };