00001
00002
00003
00004
00005
00006
00007
00008
00009
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.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 = min(b->max_length, _settings_game.construction.max_bridge_length);
00188
00189 if (b->min_length > bridge_len) return CMD_ERROR;
00190 if (bridge_len <= max) return CommandCost();
00191 return_cmd_error(STR_ERROR_BRIDGE_TOO_LONG);
00192 }
00193
00206 CommandCost CmdBuildBridge(TileIndex end_tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00207 {
00208 RailType railtype = INVALID_RAILTYPE;
00209 RoadTypes roadtypes = ROADTYPES_NONE;
00210
00211
00212 BridgeType bridge_type = GB(p2, 0, 8);
00213
00214 if (!IsValidTile(p1)) return_cmd_error(STR_ERROR_BRIDGE_THROUGH_MAP_BORDER);
00215
00216 TransportType transport_type = Extract<TransportType, 15, 2>(p2);
00217
00218
00219 switch (transport_type) {
00220 case TRANSPORT_ROAD:
00221 roadtypes = Extract<RoadTypes, 8, 2>(p2);
00222 if (!HasExactlyOneBit(roadtypes) || !HasRoadTypesAvail(_current_company, roadtypes)) return CMD_ERROR;
00223 break;
00224
00225 case TRANSPORT_RAIL:
00226 railtype = Extract<RailType, 8, 4>(p2);
00227 if (!ValParamRailtype(railtype)) return CMD_ERROR;
00228 break;
00229
00230 case TRANSPORT_WATER:
00231 break;
00232
00233 default:
00234
00235 return CMD_ERROR;
00236 }
00237 TileIndex tile_start = p1;
00238 TileIndex tile_end = end_tile;
00239
00240 if (tile_start == tile_end) {
00241 return_cmd_error(STR_ERROR_CAN_T_START_AND_END_ON);
00242 }
00243
00244 Axis direction;
00245 if (TileX(tile_start) == TileX(tile_end)) {
00246 direction = AXIS_Y;
00247 } else if (TileY(tile_start) == TileY(tile_end)) {
00248 direction = AXIS_X;
00249 } else {
00250 return_cmd_error(STR_ERROR_START_AND_END_MUST_BE_IN);
00251 }
00252
00253 if (tile_end < tile_start) Swap(tile_start, tile_end);
00254
00255 uint bridge_len = GetTunnelBridgeLength(tile_start, tile_end);
00256 if (transport_type != TRANSPORT_WATER) {
00257
00258 CommandCost ret = CheckBridgeAvailability(bridge_type, bridge_len, flags);
00259 if (ret.Failed()) return ret;
00260 } else {
00261 if (bridge_len > _settings_game.construction.max_bridge_length) return_cmd_error(STR_ERROR_BRIDGE_TOO_LONG);
00262 }
00263
00264 uint z_start;
00265 uint z_end;
00266 Slope tileh_start = GetTileSlope(tile_start, &z_start);
00267 Slope tileh_end = GetTileSlope(tile_end, &z_end);
00268 bool pbs_reservation = false;
00269
00270 CommandCost terraform_cost_north = CheckBridgeSlopeNorth(direction, &tileh_start, &z_start);
00271 CommandCost terraform_cost_south = CheckBridgeSlopeSouth(direction, &tileh_end, &z_end);
00272
00273
00274 if (transport_type == TRANSPORT_WATER && (tileh_start == SLOPE_FLAT || tileh_end == SLOPE_FLAT)) return_cmd_error(STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION);
00275 if (z_start != z_end) return_cmd_error(STR_ERROR_BRIDGEHEADS_NOT_SAME_HEIGHT);
00276
00277 CommandCost cost(EXPENSES_CONSTRUCTION);
00278 Owner owner;
00279 if (IsBridgeTile(tile_start) && IsBridgeTile(tile_end) &&
00280 GetOtherBridgeEnd(tile_start) == tile_end &&
00281 GetTunnelBridgeTransportType(tile_start) == transport_type) {
00282
00283
00284
00285 if (transport_type == TRANSPORT_RAIL && GetRailType(tile_start) != railtype) {
00286 return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00287 }
00288
00289
00290 if (!(flags & DC_QUERY_COST) && IsTileOwner(tile_start, OWNER_TOWN) &&
00291 GetBridgeSpec(bridge_type)->speed < GetBridgeSpec(GetBridgeType(tile_start))->speed) {
00292 Town *t = ClosestTownFromTile(tile_start, UINT_MAX);
00293
00294 if (t == NULL) {
00295 return CMD_ERROR;
00296 } else {
00297 SetDParam(0, t->index);
00298 return_cmd_error(STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS);
00299 }
00300 }
00301
00302
00303 if (!(flags & DC_QUERY_COST) && bridge_type == GetBridgeType(tile_start)) {
00304 return_cmd_error(STR_ERROR_ALREADY_BUILT);
00305 }
00306
00307
00308 if (!IsTileOwner(tile_start, _current_company) && !IsTileOwner(tile_start, OWNER_TOWN)) {
00309 return_cmd_error(STR_ERROR_AREA_IS_OWNED_BY_ANOTHER);
00310 }
00311
00312 cost.AddCost((bridge_len + 1) * _price[PR_CLEAR_BRIDGE]);
00313 owner = GetTileOwner(tile_start);
00314
00315 switch (transport_type) {
00316 case TRANSPORT_RAIL:
00317
00318 pbs_reservation = HasTunnelBridgeReservation(tile_start);
00319 break;
00320
00321 case TRANSPORT_ROAD:
00322
00323 roadtypes |= GetRoadTypes(tile_start);
00324 break;
00325
00326 default: break;
00327 }
00328 } else {
00329
00330
00331 bool allow_on_slopes = (_settings_game.construction.build_on_slopes && transport_type != TRANSPORT_WATER);
00332
00333
00334 CommandCost ret = DoCommand(tile_start, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00335 if (ret.Failed()) return ret;
00336 cost = ret;
00337
00338 if (terraform_cost_north.Failed() || (terraform_cost_north.GetCost() != 0 && !allow_on_slopes)) return_cmd_error(STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION);
00339 cost.AddCost(terraform_cost_north);
00340
00341
00342 ret = DoCommand(tile_end, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00343 if (ret.Failed()) return ret;
00344 cost.AddCost(ret);
00345
00346
00347 if (terraform_cost_south.Failed() || (terraform_cost_south.GetCost() != 0 && !allow_on_slopes)) return_cmd_error(STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION);
00348 cost.AddCost(terraform_cost_south);
00349
00350 const TileIndex heads[] = {tile_start, tile_end};
00351 for (int i = 0; i < 2; i++) {
00352 if (MayHaveBridgeAbove(heads[i])) {
00353 if (IsBridgeAbove(heads[i])) {
00354 TileIndex north_head = GetNorthernBridgeEnd(heads[i]);
00355
00356 if (direction == GetBridgeAxis(heads[i])) return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00357
00358 if (z_start + TILE_HEIGHT == GetBridgeHeight(north_head)) {
00359 return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00360 }
00361 }
00362 }
00363 }
00364
00365 TileIndexDiff delta = (direction == AXIS_X ? TileDiffXY(1, 0) : TileDiffXY(0, 1));
00366 for (TileIndex tile = tile_start + delta; tile != tile_end; tile += delta) {
00367 if (GetTileMaxZ(tile) > z_start) return_cmd_error(STR_ERROR_BRIDGE_TOO_LOW_FOR_TERRAIN);
00368
00369 if (MayHaveBridgeAbove(tile) && IsBridgeAbove(tile)) {
00370
00371 return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00372 }
00373
00374 switch (GetTileType(tile)) {
00375 case MP_WATER:
00376 if (!IsWater(tile) && !IsCoast(tile)) goto not_valid_below;
00377 break;
00378
00379 case MP_RAILWAY:
00380 if (!IsPlainRail(tile)) goto not_valid_below;
00381 break;
00382
00383 case MP_ROAD:
00384 if (IsRoadDepot(tile)) goto not_valid_below;
00385 break;
00386
00387 case MP_TUNNELBRIDGE:
00388 if (IsTunnel(tile)) break;
00389 if (direction == DiagDirToAxis(GetTunnelBridgeDirection(tile))) goto not_valid_below;
00390 if (z_start < GetBridgeHeight(tile)) goto not_valid_below;
00391 break;
00392
00393 case MP_OBJECT: {
00394 const ObjectSpec *spec = ObjectSpec::GetByTile(tile);
00395 if ((spec->flags & OBJECT_FLAG_ALLOW_UNDER_BRIDGE) == 0) goto not_valid_below;
00396 if (GetTileMaxZ(tile) + spec->height * TILE_HEIGHT > z_start) goto not_valid_below;
00397 break;
00398 }
00399
00400 case MP_CLEAR:
00401 break;
00402
00403 default:
00404 not_valid_below:;
00405
00406 ret = DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00407 if (ret.Failed()) return ret;
00408 cost.AddCost(ret);
00409 break;
00410 }
00411
00412 if (flags & DC_EXEC) {
00413
00414
00415
00416 SetBridgeMiddle(tile, direction);
00417 }
00418 }
00419
00420 owner = _current_company;
00421 }
00422
00423
00424 if (flags & DC_EXEC) {
00425 DiagDirection dir = AxisToDiagDir(direction);
00426
00427 switch (transport_type) {
00428 case TRANSPORT_RAIL:
00429 MakeRailBridgeRamp(tile_start, owner, bridge_type, dir, railtype);
00430 MakeRailBridgeRamp(tile_end, owner, bridge_type, ReverseDiagDir(dir), railtype);
00431 SetTunnelBridgeReservation(tile_start, pbs_reservation);
00432 SetTunnelBridgeReservation(tile_end, pbs_reservation);
00433 break;
00434
00435 case TRANSPORT_ROAD:
00436 MakeRoadBridgeRamp(tile_start, owner, bridge_type, dir, roadtypes);
00437 MakeRoadBridgeRamp(tile_end, owner, bridge_type, ReverseDiagDir(dir), roadtypes);
00438 break;
00439
00440 case TRANSPORT_WATER:
00441 MakeAqueductBridgeRamp(tile_start, owner, dir);
00442 MakeAqueductBridgeRamp(tile_end, owner, ReverseDiagDir(dir));
00443 break;
00444
00445 default:
00446 NOT_REACHED();
00447 }
00448
00449
00450 TileIndexDiff delta = (direction == AXIS_X ? TileDiffXY(1, 0) : TileDiffXY(0, 1));
00451 for (TileIndex tile = tile_start; tile <= tile_end; tile += delta) {
00452 MarkTileDirtyByTile(tile);
00453 }
00454 }
00455
00456 if ((flags & DC_EXEC) && transport_type == TRANSPORT_RAIL) {
00457 Track track = AxisToTrack(direction);
00458 AddSideToSignalBuffer(tile_start, INVALID_DIAGDIR, _current_company);
00459 YapfNotifyTrackLayoutChange(tile_start, track);
00460 }
00461
00462
00463
00464
00465
00466 Company *c = Company::GetIfValid(_current_company);
00467 if (!(flags & DC_QUERY_COST) || (c != NULL && c->is_ai)) {
00468 bridge_len += 2;
00469
00470 switch (transport_type) {
00471 case TRANSPORT_ROAD: cost.AddCost(bridge_len * _price[PR_BUILD_ROAD] * 2); break;
00472 case TRANSPORT_RAIL: cost.AddCost(bridge_len * RailBuildCost(railtype)); break;
00473 default: break;
00474 }
00475
00476 if (c != NULL) bridge_len = CalcBridgeLenCostFactor(bridge_len);
00477
00478 if (transport_type != TRANSPORT_WATER) {
00479 cost.AddCost((int64)bridge_len * _price[PR_BUILD_BRIDGE] * GetBridgeSpec(bridge_type)->price >> 8);
00480 } else {
00481
00482 cost.AddCost((int64)bridge_len * _price[PR_BUILD_AQUEDUCT]);
00483 }
00484
00485 }
00486
00487 return cost;
00488 }
00489
00490
00501 CommandCost CmdBuildTunnel(TileIndex start_tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00502 {
00503 TransportType transport_type = Extract<TransportType, 8, 2>(p1);
00504
00505 RailType railtype = INVALID_RAILTYPE;
00506 RoadTypes rts = ROADTYPES_NONE;
00507 _build_tunnel_endtile = 0;
00508 switch (transport_type) {
00509 case TRANSPORT_RAIL:
00510 railtype = Extract<RailType, 0, 4>(p1);
00511 if (!ValParamRailtype(railtype)) return CMD_ERROR;
00512 break;
00513
00514 case TRANSPORT_ROAD:
00515 rts = Extract<RoadTypes, 0, 2>(p1);
00516 if (!HasExactlyOneBit(rts) || !HasRoadTypesAvail(_current_company, rts)) return CMD_ERROR;
00517 break;
00518
00519 default: return CMD_ERROR;
00520 }
00521
00522 uint start_z;
00523 uint end_z;
00524 Slope start_tileh = GetTileSlope(start_tile, &start_z);
00525 DiagDirection direction = GetInclinedSlopeDirection(start_tileh);
00526 if (direction == INVALID_DIAGDIR) return_cmd_error(STR_ERROR_SITE_UNSUITABLE_FOR_TUNNEL);
00527
00528 if (HasTileWaterGround(start_tile)) return_cmd_error(STR_ERROR_CAN_T_BUILD_ON_WATER);
00529
00530 CommandCost ret = DoCommand(start_tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00531 if (ret.Failed()) return ret;
00532
00533
00534
00535
00536
00537
00538 TileIndexDiff delta = TileOffsByDiagDir(direction);
00539 DiagDirection tunnel_in_way_dir;
00540 if (DiagDirToAxis(direction) == AXIS_Y) {
00541 tunnel_in_way_dir = (TileX(start_tile) < (MapMaxX() / 2)) ? DIAGDIR_SW : DIAGDIR_NE;
00542 } else {
00543 tunnel_in_way_dir = (TileY(start_tile) < (MapMaxX() / 2)) ? DIAGDIR_SE : DIAGDIR_NW;
00544 }
00545
00546 TileIndex end_tile = start_tile;
00547
00548
00549 int tiles_coef = 3;
00550
00551 int tiles = 0;
00552
00553 int tiles_bump = 25;
00554
00555 CommandCost cost(EXPENSES_CONSTRUCTION);
00556 Slope end_tileh;
00557 for (;;) {
00558 end_tile += delta;
00559 if (!IsValidTile(end_tile)) return_cmd_error(STR_ERROR_TUNNEL_THROUGH_MAP_BORDER);
00560 end_tileh = GetTileSlope(end_tile, &end_z);
00561
00562 if (start_z == end_z) break;
00563
00564 if (!_cheats.crossing_tunnels.value && IsTunnelInWayDir(end_tile, start_z, tunnel_in_way_dir)) {
00565 return_cmd_error(STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY);
00566 }
00567
00568 tiles++;
00569 if (tiles == tiles_bump) {
00570 tiles_coef++;
00571 tiles_bump *= 2;
00572 }
00573
00574 cost.AddCost(_price[PR_BUILD_TUNNEL]);
00575 cost.AddCost(cost.GetCost() >> tiles_coef);
00576 }
00577
00578
00579 cost.AddCost(_price[PR_BUILD_TUNNEL]);
00580 cost.AddCost(ret);
00581
00582
00583 _build_tunnel_endtile = end_tile;
00584
00585 if (tiles > _settings_game.construction.max_tunnel_length) return_cmd_error(STR_ERROR_TUNNEL_TOO_LONG);
00586
00587 if (HasTileWaterGround(end_tile)) return_cmd_error(STR_ERROR_CAN_T_BUILD_ON_WATER);
00588
00589
00590 ret = DoCommand(end_tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00591 if (ret.Failed()) return_cmd_error(STR_ERROR_UNABLE_TO_EXCAVATE_LAND);
00592 cost.AddCost(ret);
00593
00594
00595 if (end_tileh != ComplementSlope(start_tileh)) {
00596
00597
00598 ClearedObjectArea *coa = FindClearedObject(end_tile);
00599 if (coa == NULL) {
00600 coa = _cleared_object_areas.Append();
00601 coa->first_tile = end_tile;
00602 coa->area = TileArea(end_tile, 1, 1);
00603 }
00604
00605
00606 TileIndex old_first_tile = coa->first_tile;
00607 coa->first_tile = INVALID_TILE;
00608 ret = DoCommand(end_tile, end_tileh & start_tileh, 0, flags, CMD_TERRAFORM_LAND);
00609 coa->first_tile = old_first_tile;
00610 if (ret.Failed()) return_cmd_error(STR_ERROR_UNABLE_TO_EXCAVATE_LAND);
00611 cost.AddCost(ret);
00612 }
00613 cost.AddCost(_price[PR_BUILD_TUNNEL]);
00614
00615
00616 switch (transport_type) {
00617 case TRANSPORT_ROAD: cost.AddCost((tiles + 2) * _price[PR_BUILD_ROAD] * 2); break;
00618 case TRANSPORT_RAIL: cost.AddCost((tiles + 2) * RailBuildCost(railtype)); break;
00619 default: break;
00620 }
00621
00622 if (flags & DC_EXEC) {
00623 if (transport_type == TRANSPORT_RAIL) {
00624 MakeRailTunnel(start_tile, _current_company, direction, railtype);
00625 MakeRailTunnel(end_tile, _current_company, ReverseDiagDir(direction), railtype);
00626 AddSideToSignalBuffer(start_tile, INVALID_DIAGDIR, _current_company);
00627 YapfNotifyTrackLayoutChange(start_tile, DiagDirToDiagTrack(direction));
00628 } else {
00629 MakeRoadTunnel(start_tile, _current_company, direction, rts);
00630 MakeRoadTunnel(end_tile, _current_company, ReverseDiagDir(direction), rts);
00631 }
00632 }
00633
00634 return cost;
00635 }
00636
00637
00643 static inline CommandCost CheckAllowRemoveTunnelBridge(TileIndex tile)
00644 {
00645
00646 if (_current_company == OWNER_WATER || _game_mode == GM_EDITOR) return CommandCost();
00647
00648 switch (GetTunnelBridgeTransportType(tile)) {
00649 case TRANSPORT_ROAD: {
00650 RoadTypes rts = GetRoadTypes(tile);
00651 Owner road_owner = _current_company;
00652 Owner tram_owner = _current_company;
00653
00654 if (HasBit(rts, ROADTYPE_ROAD)) road_owner = GetRoadOwner(tile, ROADTYPE_ROAD);
00655 if (HasBit(rts, ROADTYPE_TRAM)) tram_owner = GetRoadOwner(tile, ROADTYPE_TRAM);
00656
00657
00658 if (road_owner == OWNER_TOWN && !(_settings_game.construction.extra_dynamite || _cheats.magic_bulldozer.value)) {
00659 return CheckTileOwnership(tile);
00660 }
00661 if (road_owner == OWNER_NONE || road_owner == OWNER_TOWN) road_owner = _current_company;
00662 if (tram_owner == OWNER_NONE) tram_owner = _current_company;
00663
00664 CommandCost ret = CheckOwnership(road_owner, tile);
00665 if (ret.Succeeded()) ret = CheckOwnership(tram_owner, tile);
00666 return ret;
00667 }
00668
00669 case TRANSPORT_RAIL:
00670 case TRANSPORT_WATER:
00671 return CheckOwnership(GetTileOwner(tile));
00672
00673 default: NOT_REACHED();
00674 }
00675 }
00676
00683 static CommandCost DoClearTunnel(TileIndex tile, DoCommandFlag flags)
00684 {
00685 CommandCost ret = CheckAllowRemoveTunnelBridge(tile);
00686 if (ret.Failed()) return ret;
00687
00688 TileIndex endtile = GetOtherTunnelEnd(tile);
00689
00690 ret = TunnelBridgeIsFree(tile, endtile);
00691 if (ret.Failed()) return ret;
00692
00693 _build_tunnel_endtile = endtile;
00694
00695 Town *t = NULL;
00696 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00697 t = ClosestTownFromTile(tile, UINT_MAX);
00698
00699
00700
00701 CommandCost ret = CheckforTownRating(flags, t, TUNNELBRIDGE_REMOVE);
00702 if (ret.Failed()) return ret;
00703 }
00704
00705
00706
00707 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00708 ChangeTownRating(t, RATING_TUNNEL_BRIDGE_DOWN_STEP, RATING_TUNNEL_BRIDGE_MINIMUM, flags);
00709 }
00710
00711 if (flags & DC_EXEC) {
00712 if (GetTunnelBridgeTransportType(tile) == TRANSPORT_RAIL) {
00713
00714 DiagDirection dir = GetTunnelBridgeDirection(tile);
00715 Track track = DiagDirToDiagTrack(dir);
00716 Owner owner = GetTileOwner(tile);
00717
00718 Train *v = NULL;
00719 if (HasTunnelBridgeReservation(tile)) {
00720 v = GetTrainForReservation(tile, track);
00721 if (v != NULL) FreeTrainTrackReservation(v);
00722 }
00723
00724 DoClearSquare(tile);
00725 DoClearSquare(endtile);
00726
00727
00728 AddSideToSignalBuffer(tile, ReverseDiagDir(dir), owner);
00729 AddSideToSignalBuffer(endtile, dir, owner);
00730
00731 YapfNotifyTrackLayoutChange(tile, track);
00732 YapfNotifyTrackLayoutChange(endtile, track);
00733
00734 if (v != NULL) TryPathReserve(v);
00735 } else {
00736 DoClearSquare(tile);
00737 DoClearSquare(endtile);
00738 }
00739 }
00740 return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_CLEAR_TUNNEL] * (GetTunnelBridgeLength(tile, endtile) + 2));
00741 }
00742
00743
00750 static CommandCost DoClearBridge(TileIndex tile, DoCommandFlag flags)
00751 {
00752 CommandCost ret = CheckAllowRemoveTunnelBridge(tile);
00753 if (ret.Failed()) return ret;
00754
00755 TileIndex endtile = GetOtherBridgeEnd(tile);
00756
00757 ret = TunnelBridgeIsFree(tile, endtile);
00758 if (ret.Failed()) return ret;
00759
00760 DiagDirection direction = GetTunnelBridgeDirection(tile);
00761 TileIndexDiff delta = TileOffsByDiagDir(direction);
00762
00763 Town *t = NULL;
00764 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00765 t = ClosestTownFromTile(tile, UINT_MAX);
00766
00767
00768
00769 CommandCost ret = CheckforTownRating(flags, t, TUNNELBRIDGE_REMOVE);
00770 if (ret.Failed()) return ret;
00771 }
00772
00773
00774
00775 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00776 ChangeTownRating(t, RATING_TUNNEL_BRIDGE_DOWN_STEP, RATING_TUNNEL_BRIDGE_MINIMUM, flags);
00777 }
00778
00779 Money base_cost = (GetTunnelBridgeTransportType(tile) != TRANSPORT_WATER) ? _price[PR_CLEAR_BRIDGE] : _price[PR_CLEAR_AQUEDUCT];
00780
00781 if (flags & DC_EXEC) {
00782
00783 bool rail = GetTunnelBridgeTransportType(tile) == TRANSPORT_RAIL;
00784 Owner owner = GetTileOwner(tile);
00785 uint height = GetBridgeHeight(tile);
00786 Train *v = NULL;
00787
00788 if (rail && HasTunnelBridgeReservation(tile)) {
00789 v = GetTrainForReservation(tile, DiagDirToDiagTrack(direction));
00790 if (v != NULL) FreeTrainTrackReservation(v);
00791 }
00792
00793 DoClearSquare(tile);
00794 DoClearSquare(endtile);
00795 for (TileIndex c = tile + delta; c != endtile; c += delta) {
00796
00797 if (IsNormalRoadTile(c) && GetRoadside(c) == ROADSIDE_TREES) {
00798 uint minz = GetTileMaxZ(c) + 3 * TILE_HEIGHT;
00799 if (height < minz) SetRoadside(c, ROADSIDE_PAVED);
00800 }
00801 ClearBridgeMiddle(c);
00802 MarkTileDirtyByTile(c);
00803 }
00804
00805 if (rail) {
00806
00807 AddSideToSignalBuffer(tile, ReverseDiagDir(direction), owner);
00808 AddSideToSignalBuffer(endtile, direction, owner);
00809
00810 Track track = DiagDirToDiagTrack(direction);
00811 YapfNotifyTrackLayoutChange(tile, track);
00812 YapfNotifyTrackLayoutChange(endtile, track);
00813
00814 if (v != NULL) TryPathReserve(v, true);
00815 }
00816 }
00817
00818 return CommandCost(EXPENSES_CONSTRUCTION, (GetTunnelBridgeLength(tile, endtile) + 2) * base_cost);
00819 }
00820
00827 static CommandCost ClearTile_TunnelBridge(TileIndex tile, DoCommandFlag flags)
00828 {
00829 if (IsTunnel(tile)) {
00830 if (flags & DC_AUTO) return_cmd_error(STR_ERROR_MUST_DEMOLISH_TUNNEL_FIRST);
00831 return DoClearTunnel(tile, flags);
00832 } else {
00833 if (flags & DC_AUTO) return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00834 return DoClearBridge(tile, flags);
00835 }
00836 }
00837
00848 static inline void DrawPillar(const PalSpriteID *psid, int x, int y, int z, int w, int h, const SubSprite *subsprite)
00849 {
00850 static const int PILLAR_Z_OFFSET = TILE_HEIGHT - BRIDGE_Z_START;
00851 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);
00852 }
00853
00865 static int DrawPillarColumn(int z_bottom, int z_top, const PalSpriteID *psid, int x, int y, int w, int h)
00866 {
00867 int cur_z;
00868 for (cur_z = z_top; cur_z >= z_bottom; cur_z -= TILE_HEIGHT) {
00869 DrawPillar(psid, x, y, cur_z, w, h, NULL);
00870 }
00871 return cur_z;
00872 }
00873
00885 static void DrawBridgePillars(const PalSpriteID *psid, const TileInfo *ti, Axis axis, bool drawfarpillar, int x, int y, int z_bridge)
00886 {
00887 static const int bounding_box_size[2] = {16, 2};
00888 static const int back_pillar_offset[2] = { 0, 9};
00889
00890 static const int INF = 1000;
00891 static const SubSprite half_pillar_sub_sprite[2][2] = {
00892 { { -14, -INF, INF, INF }, { -INF, -INF, -15, INF } },
00893 { { -INF, -INF, 15, INF }, { 16, -INF, INF, INF } },
00894 };
00895
00896 if (psid->sprite == 0) return;
00897
00898
00899 DiagDirection south_dir = AxisToDiagDir(axis);
00900 int z_front_north = ti->z;
00901 int z_back_north = ti->z;
00902 int z_front_south = ti->z;
00903 int z_back_south = ti->z;
00904 GetSlopeZOnEdge(ti->tileh, south_dir, &z_front_south, &z_back_south);
00905 GetSlopeZOnEdge(ti->tileh, ReverseDiagDir(south_dir), &z_front_north, &z_back_north);
00906
00907
00908 int z_front = max(z_front_north, z_front_south);
00909 int z_back = max(z_back_north, z_back_south);
00910
00911
00912 int w = bounding_box_size[axis];
00913 int h = bounding_box_size[OtherAxis(axis)];
00914
00915 int x_back = x - back_pillar_offset[axis];
00916 int y_back = y - back_pillar_offset[OtherAxis(axis)];
00917
00918
00919 int bottom_z = DrawPillarColumn(z_front, z_bridge, psid, x, y, w, h);
00920 if (z_front_north < z_front) DrawPillar(psid, x, y, bottom_z, w, h, &half_pillar_sub_sprite[axis][0]);
00921 if (z_front_south < z_front) DrawPillar(psid, x, y, bottom_z, w, h, &half_pillar_sub_sprite[axis][1]);
00922
00923
00924 int z_bridge_back = z_bridge - 2 * (int)TILE_HEIGHT;
00925 if (drawfarpillar && (z_back_north <= z_bridge_back || z_back_south <= z_bridge_back)) {
00926 bottom_z = DrawPillarColumn(z_back, z_bridge_back, psid, x_back, y_back, w, h);
00927 if (z_back_north < z_back) DrawPillar(psid, x_back, y_back, bottom_z, w, h, &half_pillar_sub_sprite[axis][0]);
00928 if (z_back_south < z_back) DrawPillar(psid, x_back, y_back, bottom_z, w, h, &half_pillar_sub_sprite[axis][1]);
00929 }
00930 }
00931
00941 static void DrawBridgeTramBits(int x, int y, byte z, int offset, bool overlay, bool head)
00942 {
00943 static const SpriteID tram_offsets[2][6] = { { 107, 108, 109, 110, 111, 112 }, { 4, 5, 15, 16, 17, 18 } };
00944 static const SpriteID back_offsets[6] = { 95, 96, 99, 102, 100, 101 };
00945 static const SpriteID front_offsets[6] = { 97, 98, 103, 106, 104, 105 };
00946
00947 static const uint size_x[6] = { 1, 16, 16, 1, 16, 1 };
00948 static const uint size_y[6] = { 16, 1, 1, 16, 1, 16 };
00949 static const uint front_bb_offset_x[6] = { 15, 0, 0, 15, 0, 15 };
00950 static const uint front_bb_offset_y[6] = { 0, 15, 15, 0, 15, 0 };
00951
00952
00953
00954 if (head || !IsInvisibilitySet(TO_BRIDGES)) {
00955 AddSortableSpriteToDraw(SPR_TRAMWAY_BASE + tram_offsets[overlay][offset], PAL_NONE,
00956 x, y, size_x[offset], size_y[offset], 0x28, z,
00957 !head && IsTransparencySet(TO_BRIDGES));
00958 }
00959
00960
00961 if (!IsInvisibilitySet(TO_CATENARY)) {
00962 AddSortableSpriteToDraw(SPR_TRAMWAY_BASE + back_offsets[offset], PAL_NONE,
00963 x, y, size_x[offset], size_y[offset], 0x28, z,
00964 IsTransparencySet(TO_CATENARY));
00965 }
00966
00967
00968 EndSpriteCombine();
00969 StartSpriteCombine();
00970
00971
00972 if (!IsInvisibilitySet(TO_CATENARY)) {
00973 AddSortableSpriteToDraw(SPR_TRAMWAY_BASE + front_offsets[offset], PAL_NONE,
00974 x, y, size_x[offset] + front_bb_offset_x[offset], size_y[offset] + front_bb_offset_y[offset], 0x28, z,
00975 IsTransparencySet(TO_CATENARY), front_bb_offset_x[offset], front_bb_offset_y[offset]);
00976 }
00977 }
00978
00992 static void DrawTile_TunnelBridge(TileInfo *ti)
00993 {
00994 TransportType transport_type = GetTunnelBridgeTransportType(ti->tile);
00995 DiagDirection tunnelbridge_direction = GetTunnelBridgeDirection(ti->tile);
00996
00997 if (IsTunnel(ti->tile)) {
00998
00999
01000
01001
01002
01003
01004
01005
01006
01007 static const int _tunnel_BB[4][12] = {
01008
01009
01010 { 1, 0, -15, -14, 0, 15, 16, 1, 0, 1, 16, 15 },
01011 { 0, 1, -14, -15, 15, 0, 1, 16, 1, 0, 15, 16 },
01012 { 1, 0, -15, -14, 0, 15, 16, 1, 0, 1, 16, 15 },
01013 { 0, 1, -14, -15, 15, 0, 1, 16, 1, 0, 15, 16 },
01014 };
01015 const int *BB_data = _tunnel_BB[tunnelbridge_direction];
01016
01017 bool catenary = false;
01018
01019 SpriteID image;
01020 if (transport_type == TRANSPORT_RAIL) {
01021 image = GetRailTypeInfo(GetRailType(ti->tile))->base_sprites.tunnel;
01022 } else {
01023 image = SPR_TUNNEL_ENTRY_REAR_ROAD;
01024 }
01025
01026 if (HasTunnelBridgeSnowOrDesert(ti->tile)) image += 32;
01027
01028 image += tunnelbridge_direction * 2;
01029 DrawGroundSprite(image, PAL_NONE);
01030
01031
01032 if (_game_mode != GM_MENU && _settings_client.gui.show_track_reservation && (transport_type == TRANSPORT_RAIL && HasTunnelBridgeReservation(ti->tile))) {
01033 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(ti->tile));
01034 DrawGroundSprite(DiagDirToAxis(tunnelbridge_direction) == AXIS_X ? rti->base_sprites.single_x : rti->base_sprites.single_y, PALETTE_CRASH);
01035 }
01036
01037 if (transport_type == TRANSPORT_ROAD) {
01038 RoadTypes rts = GetRoadTypes(ti->tile);
01039
01040 if (HasBit(rts, ROADTYPE_TRAM)) {
01041 static const SpriteID tunnel_sprites[2][4] = { { 28, 78, 79, 27 }, { 5, 76, 77, 4 } };
01042
01043 DrawGroundSprite(SPR_TRAMWAY_BASE + tunnel_sprites[rts - ROADTYPES_TRAM][tunnelbridge_direction], PAL_NONE);
01044
01045
01046 if (!IsInvisibilitySet(TO_CATENARY)) {
01047 catenary = true;
01048 StartSpriteCombine();
01049 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);
01050 }
01051 }
01052 } else {
01053 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(ti->tile));
01054 if (rti->UsesOverlay()) {
01055 SpriteID surface = GetCustomRailSprite(rti, ti->tile, RTSG_TUNNEL);
01056 if (surface != 0) DrawGroundSprite(surface + tunnelbridge_direction, PAL_NONE);
01057 }
01058
01059 if (HasCatenaryDrawn(GetRailType(ti->tile))) {
01060
01061 DrawCatenary(ti);
01062
01063 catenary = true;
01064 StartSpriteCombine();
01065
01066 DrawCatenaryOnTunnel(ti);
01067 }
01068 }
01069
01070 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);
01071
01072 if (catenary) EndSpriteCombine();
01073
01074
01075 AddSortableSpriteToDraw(SPR_EMPTY_BOUNDING_BOX, PAL_NONE, ti->x, ti->y, BB_data[6], BB_data[7], TILE_HEIGHT, ti->z);
01076 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);
01077
01078 DrawBridgeMiddle(ti);
01079 } else {
01080 const PalSpriteID *psid;
01081 int base_offset;
01082 bool ice = HasTunnelBridgeSnowOrDesert(ti->tile);
01083
01084 if (transport_type == TRANSPORT_RAIL) {
01085 base_offset = GetRailTypeInfo(GetRailType(ti->tile))->bridge_offset;
01086 assert(base_offset != 8);
01087 } else {
01088 base_offset = 8;
01089 }
01090
01091
01092 assert( (base_offset & 0x07) == 0x00);
01093
01094 DrawFoundation(ti, GetBridgeFoundation(ti->tileh, DiagDirToAxis(tunnelbridge_direction)));
01095
01096
01097 base_offset += (6 - tunnelbridge_direction) % 4;
01098
01099 if (ti->tileh == SLOPE_FLAT) base_offset += 4;
01100
01101
01102 if (transport_type != TRANSPORT_WATER) {
01103 psid = &GetBridgeSpriteTable(GetBridgeType(ti->tile), BRIDGE_PIECE_HEAD)[base_offset];
01104 } else {
01105 psid = _aqueduct_sprites + base_offset;
01106 }
01107
01108 if (!ice) {
01109 TileIndex next = ti->tile + TileOffsByDiagDir(tunnelbridge_direction);
01110 if (ti->tileh != SLOPE_FLAT && ti->z == 0 && HasTileWaterClass(next) && GetWaterClass(next) == WATER_CLASS_SEA) {
01111 DrawShoreTile(ti->tileh);
01112 } else {
01113 DrawClearLandTile(ti, 3);
01114 }
01115 } else {
01116 DrawGroundSprite(SPR_FLAT_SNOW_DESERT_TILE + SlopeToSpriteOffset(ti->tileh), PAL_NONE);
01117 }
01118
01119
01120
01121
01122 if (transport_type == TRANSPORT_ROAD || transport_type == TRANSPORT_RAIL) StartSpriteCombine();
01123
01124
01125
01126
01127
01128 AddSortableSpriteToDraw(psid->sprite, psid->pal, ti->x, ti->y, 16, 16, ti->tileh == SLOPE_FLAT ? 0 : 8, ti->z);
01129
01130 if (transport_type == TRANSPORT_ROAD) {
01131 RoadTypes rts = GetRoadTypes(ti->tile);
01132
01133 if (HasBit(rts, ROADTYPE_TRAM)) {
01134 uint offset = tunnelbridge_direction;
01135 uint z = ti->z;
01136 if (ti->tileh != SLOPE_FLAT) {
01137 offset = (offset + 1) & 1;
01138 z += TILE_HEIGHT;
01139 } else {
01140 offset += 2;
01141 }
01142
01143 DrawBridgeTramBits(ti->x, ti->y, z, offset, HasBit(rts, ROADTYPE_ROAD), true);
01144 }
01145 EndSpriteCombine();
01146 } else if (transport_type == TRANSPORT_RAIL) {
01147 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(ti->tile));
01148 if (rti->UsesOverlay()) {
01149 SpriteID surface = GetCustomRailSprite(rti, ti->tile, RTSG_BRIDGE);
01150 if (surface != 0) {
01151 if (HasBridgeFlatRamp(ti->tileh, DiagDirToAxis(tunnelbridge_direction))) {
01152 AddSortableSpriteToDraw(surface + ((DiagDirToAxis(tunnelbridge_direction) == AXIS_X) ? RTBO_X : RTBO_Y), PAL_NONE, ti->x, ti->y, 16, 16, 0, ti->z + 8);
01153 } else {
01154 AddSortableSpriteToDraw(surface + RTBO_SLOPE + tunnelbridge_direction, PAL_NONE, ti->x, ti->y, 16, 16, 8, ti->z);
01155 }
01156 }
01157
01158
01159
01160 } else if (_game_mode != GM_MENU &&_settings_client.gui.show_track_reservation && HasTunnelBridgeReservation(ti->tile)) {
01161 if (HasBridgeFlatRamp(ti->tileh, DiagDirToAxis(tunnelbridge_direction))) {
01162 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);
01163 } else {
01164 AddSortableSpriteToDraw(rti->base_sprites.single_sloped + tunnelbridge_direction, PALETTE_CRASH, ti->x, ti->y, 16, 16, 8, ti->z);
01165 }
01166 }
01167 EndSpriteCombine();
01168 if (HasCatenaryDrawn(GetRailType(ti->tile))) {
01169 DrawCatenary(ti);
01170 }
01171 }
01172
01173 DrawBridgeMiddle(ti);
01174 }
01175 }
01176
01177
01196 static BridgePieces CalcBridgePiece(uint north, uint south)
01197 {
01198 if (north == 1) {
01199 return BRIDGE_PIECE_NORTH;
01200 } else if (south == 1) {
01201 return BRIDGE_PIECE_SOUTH;
01202 } else if (north < south) {
01203 return north & 1 ? BRIDGE_PIECE_INNER_SOUTH : BRIDGE_PIECE_INNER_NORTH;
01204 } else if (north > south) {
01205 return south & 1 ? BRIDGE_PIECE_INNER_NORTH : BRIDGE_PIECE_INNER_SOUTH;
01206 } else {
01207 return north & 1 ? BRIDGE_PIECE_MIDDLE_EVEN : BRIDGE_PIECE_MIDDLE_ODD;
01208 }
01209 }
01210
01211
01212 void DrawBridgeMiddle(const TileInfo *ti)
01213 {
01214
01215
01216
01217
01218
01219
01220
01221
01222
01223
01224
01225
01226
01227
01228
01229
01230 if (!IsBridgeAbove(ti->tile)) return;
01231
01232 TileIndex rampnorth = GetNorthernBridgeEnd(ti->tile);
01233 TileIndex rampsouth = GetSouthernBridgeEnd(ti->tile);
01234 TransportType transport_type = GetTunnelBridgeTransportType(rampsouth);
01235
01236 Axis axis = GetBridgeAxis(ti->tile);
01237 BridgePieces piece = CalcBridgePiece(
01238 GetTunnelBridgeLength(ti->tile, rampnorth) + 1,
01239 GetTunnelBridgeLength(ti->tile, rampsouth) + 1
01240 );
01241
01242 const PalSpriteID *psid;
01243 bool drawfarpillar;
01244 if (transport_type != TRANSPORT_WATER) {
01245 BridgeType type = GetBridgeType(rampsouth);
01246 drawfarpillar = !HasBit(GetBridgeSpec(type)->flags, 0);
01247
01248 uint base_offset;
01249 if (transport_type == TRANSPORT_RAIL) {
01250 base_offset = GetRailTypeInfo(GetRailType(rampsouth))->bridge_offset;
01251 } else {
01252 base_offset = 8;
01253 }
01254
01255 psid = base_offset + GetBridgeSpriteTable(type, piece);
01256 } else {
01257 drawfarpillar = true;
01258 psid = _aqueduct_sprites;
01259 }
01260
01261 if (axis != AXIS_X) psid += 4;
01262
01263 int x = ti->x;
01264 int y = ti->y;
01265 uint bridge_z = GetBridgeHeight(rampsouth);
01266 uint z = bridge_z - BRIDGE_Z_START;
01267
01268
01269 AddSortableSpriteToDraw(SPR_EMPTY_BOUNDING_BOX, PAL_NONE, x, y, 16, 16, 1, bridge_z - TILE_HEIGHT + BB_Z_SEPARATOR);
01270
01271
01272 if (transport_type == TRANSPORT_ROAD || transport_type == TRANSPORT_RAIL) StartSpriteCombine();
01273
01274
01275 if (!IsInvisibilitySet(TO_BRIDGES)) {
01276 if (axis == AXIS_X) {
01277 AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 16, 1, 0x28, z, IsTransparencySet(TO_BRIDGES), 0, 0, BRIDGE_Z_START);
01278 } else {
01279 AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 1, 16, 0x28, z, IsTransparencySet(TO_BRIDGES), 0, 0, BRIDGE_Z_START);
01280 }
01281 }
01282
01283 psid++;
01284
01285 if (transport_type == TRANSPORT_ROAD) {
01286 RoadTypes rts = GetRoadTypes(rampsouth);
01287
01288 if (HasBit(rts, ROADTYPE_TRAM)) {
01289
01290 DrawBridgeTramBits(x, y, bridge_z, axis ^ 1, HasBit(rts, ROADTYPE_ROAD), false);
01291 } else {
01292 EndSpriteCombine();
01293 StartSpriteCombine();
01294 }
01295 } else if (transport_type == TRANSPORT_RAIL) {
01296 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(rampsouth));
01297 if (rti->UsesOverlay()) {
01298 SpriteID surface = GetCustomRailSprite(rti, rampsouth, RTSG_BRIDGE, TCX_ON_BRIDGE);
01299 if (surface != 0) {
01300 AddSortableSpriteToDraw(surface + axis, PAL_NONE, x, y, 16, 16, 0, bridge_z, IsTransparencySet(TO_BRIDGES));
01301 }
01302 }
01303 EndSpriteCombine();
01304
01305 if (HasCatenaryDrawn(GetRailType(rampsouth))) {
01306 DrawCatenaryOnBridge(ti);
01307 }
01308 }
01309
01310
01311 if (!IsInvisibilitySet(TO_BRIDGES)) {
01312 if (axis == AXIS_X) {
01313 y += 12;
01314 if (psid->sprite & SPRITE_MASK) AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 16, 4, 0x28, z, IsTransparencySet(TO_BRIDGES), 0, 3, BRIDGE_Z_START);
01315 } else {
01316 x += 12;
01317 if (psid->sprite & SPRITE_MASK) AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 4, 16, 0x28, z, IsTransparencySet(TO_BRIDGES), 3, 0, BRIDGE_Z_START);
01318 }
01319 }
01320
01321
01322 if (transport_type == TRANSPORT_ROAD) EndSpriteCombine();
01323
01324
01325 if (IsInvisibilitySet(TO_BRIDGES)) return;
01326
01327 psid++;
01328 if (ti->z + 5 == z) {
01329
01330 if (psid->sprite != 0) {
01331 SpriteID image = psid->sprite;
01332 SpriteID pal = psid->pal;
01333 if (IsTransparencySet(TO_BRIDGES)) {
01334 SetBit(image, PALETTE_MODIFIER_TRANSPARENT);
01335 pal = PALETTE_TO_TRANSPARENT;
01336 }
01337
01338 DrawGroundSpriteAt(image, pal, x - ti->x, y - ti->y, z - ti->z);
01339 }
01340 } else {
01341
01342 DrawBridgePillars(psid, ti, axis, drawfarpillar, x, y, z);
01343 }
01344 }
01345
01346
01347 static uint GetSlopeZ_TunnelBridge(TileIndex tile, uint x, uint y)
01348 {
01349 uint z;
01350 Slope tileh = GetTileSlope(tile, &z);
01351
01352 x &= 0xF;
01353 y &= 0xF;
01354
01355 if (IsTunnel(tile)) {
01356 uint pos = (DiagDirToAxis(GetTunnelBridgeDirection(tile)) == AXIS_X ? y : x);
01357
01358
01359 if (5 <= pos && pos <= 10) return z;
01360 } else {
01361 DiagDirection dir = GetTunnelBridgeDirection(tile);
01362 uint pos = (DiagDirToAxis(dir) == AXIS_X ? y : x);
01363
01364 z += ApplyFoundationToSlope(GetBridgeFoundation(tileh, DiagDirToAxis(dir)), &tileh);
01365
01366
01367 if (5 <= pos && pos <= 10) {
01368 uint delta;
01369
01370 if (tileh != SLOPE_FLAT) return z + TILE_HEIGHT;
01371
01372 switch (dir) {
01373 default: NOT_REACHED();
01374 case DIAGDIR_NE: delta = (TILE_SIZE - 1 - x) / 2; break;
01375 case DIAGDIR_SE: delta = y / 2; break;
01376 case DIAGDIR_SW: delta = x / 2; break;
01377 case DIAGDIR_NW: delta = (TILE_SIZE - 1 - y) / 2; break;
01378 }
01379 return z + 1 + delta;
01380 }
01381 }
01382
01383 return z + GetPartialZ(x, y, tileh);
01384 }
01385
01386 static Foundation GetFoundation_TunnelBridge(TileIndex tile, Slope tileh)
01387 {
01388 return IsTunnel(tile) ? FOUNDATION_NONE : GetBridgeFoundation(tileh, DiagDirToAxis(GetTunnelBridgeDirection(tile)));
01389 }
01390
01391 static void GetTileDesc_TunnelBridge(TileIndex tile, TileDesc *td)
01392 {
01393 TransportType tt = GetTunnelBridgeTransportType(tile);
01394
01395 if (IsTunnel(tile)) {
01396 td->str = (tt == TRANSPORT_RAIL) ? STR_LAI_TUNNEL_DESCRIPTION_RAILROAD : STR_LAI_TUNNEL_DESCRIPTION_ROAD;
01397 } else {
01398 td->str = (tt == TRANSPORT_WATER) ? STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT : GetBridgeSpec(GetBridgeType(tile))->transport_name[tt];
01399 }
01400 td->owner[0] = GetTileOwner(tile);
01401
01402 Owner road_owner = INVALID_OWNER;
01403 Owner tram_owner = INVALID_OWNER;
01404 RoadTypes rts = GetRoadTypes(tile);
01405 if (HasBit(rts, ROADTYPE_ROAD)) road_owner = GetRoadOwner(tile, ROADTYPE_ROAD);
01406 if (HasBit(rts, ROADTYPE_TRAM)) tram_owner = GetRoadOwner(tile, ROADTYPE_TRAM);
01407
01408
01409 if ((tram_owner != INVALID_OWNER && tram_owner != td->owner[0]) ||
01410 (road_owner != INVALID_OWNER && road_owner != td->owner[0])) {
01411 uint i = 1;
01412 if (road_owner != INVALID_OWNER) {
01413 td->owner_type[i] = STR_LAND_AREA_INFORMATION_ROAD_OWNER;
01414 td->owner[i] = road_owner;
01415 i++;
01416 }
01417 if (tram_owner != INVALID_OWNER) {
01418 td->owner_type[i] = STR_LAND_AREA_INFORMATION_TRAM_OWNER;
01419 td->owner[i] = tram_owner;
01420 }
01421 }
01422
01423 if (tt == TRANSPORT_RAIL) {
01424 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(tile));
01425 td->rail_speed = rti->max_speed;
01426
01427 if (!IsTunnel(tile)) {
01428 uint16 spd = GetBridgeSpec(GetBridgeType(tile))->speed;
01429 if (td->rail_speed == 0 || spd < td->rail_speed) {
01430 td->rail_speed = spd;
01431 }
01432 }
01433 }
01434 }
01435
01436
01437 static void TileLoop_TunnelBridge(TileIndex tile)
01438 {
01439 bool snow_or_desert = HasTunnelBridgeSnowOrDesert(tile);
01440 switch (_settings_game.game_creation.landscape) {
01441 case LT_ARCTIC: {
01442
01443
01444
01445 uint z = IsBridge(tile) ? GetTileMaxZ(tile) : GetTileZ(tile);
01446 if (snow_or_desert != (z > GetSnowLine())) {
01447 SetTunnelBridgeSnowOrDesert(tile, !snow_or_desert);
01448 MarkTileDirtyByTile(tile);
01449 }
01450 break;
01451 }
01452
01453 case LT_TROPIC:
01454 if (GetTropicZone(tile) == TROPICZONE_DESERT && !snow_or_desert) {
01455 SetTunnelBridgeSnowOrDesert(tile, true);
01456 MarkTileDirtyByTile(tile);
01457 }
01458 break;
01459
01460 default:
01461 break;
01462 }
01463 }
01464
01465 static TrackStatus GetTileTrackStatus_TunnelBridge(TileIndex tile, TransportType mode, uint sub_mode, DiagDirection side)
01466 {
01467 TransportType transport_type = GetTunnelBridgeTransportType(tile);
01468 if (transport_type != mode || (transport_type == TRANSPORT_ROAD && (GetRoadTypes(tile) & sub_mode) == 0)) return 0;
01469
01470 DiagDirection dir = GetTunnelBridgeDirection(tile);
01471 if (side != INVALID_DIAGDIR && side != ReverseDiagDir(dir)) return 0;
01472 return CombineTrackStatus(TrackBitsToTrackdirBits(DiagDirToDiagTrackBits(dir)), TRACKDIR_BIT_NONE);
01473 }
01474
01475 static void ChangeTileOwner_TunnelBridge(TileIndex tile, Owner old_owner, Owner new_owner)
01476 {
01477 for (RoadType rt = ROADTYPE_ROAD; rt < ROADTYPE_END; rt++) {
01478
01479 if (GetRoadOwner(tile, rt) == old_owner) {
01480 SetRoadOwner(tile, rt, new_owner == INVALID_OWNER ? OWNER_NONE : new_owner);
01481 }
01482 }
01483
01484 if (!IsTileOwner(tile, old_owner)) return;
01485
01486 if (new_owner != INVALID_OWNER) {
01487 SetTileOwner(tile, new_owner);
01488 } else {
01489 if (GetTunnelBridgeTransportType(tile) == TRANSPORT_RAIL) {
01490
01491
01492 CommandCost ret = DoCommand(tile, 0, 0, DC_EXEC | DC_BANKRUPT, CMD_LANDSCAPE_CLEAR);
01493 assert(ret.Succeeded());
01494 } else {
01495
01496 SetTileOwner(tile, OWNER_NONE);
01497 }
01498 }
01499 }
01500
01506 static const byte TUNNEL_SOUND_FRAME = 1;
01507
01516 extern const byte _tunnel_visibility_frame[DIAGDIR_END] = {12, 8, 8, 12};
01517
01518 static VehicleEnterTileStatus VehicleEnter_TunnelBridge(Vehicle *v, TileIndex tile, int x, int y)
01519 {
01520 int z = GetSlopeZ(x, y) - v->z_pos;
01521
01522 if (abs(z) > 2) return VETSB_CANNOT_ENTER;
01523
01524 const DiagDirection dir = GetTunnelBridgeDirection(tile);
01525
01526 const DiagDirection vdir = DirToDiagDir(v->direction);
01527
01528 byte pos = (DiagDirToAxis(vdir) == AXIS_X ? x : y) & TILE_UNIT_MASK;
01529
01530 byte frame = (vdir == DIAGDIR_NE || vdir == DIAGDIR_NW) ? TILE_SIZE - 1 - pos : pos;
01531
01532 if (IsTunnel(tile)) {
01533 if (v->type == VEH_TRAIN) {
01534 Train *t = Train::From(v);
01535
01536 if (t->track != TRACK_BIT_WORMHOLE && dir == vdir) {
01537 if (t->IsFrontEngine() && frame == TUNNEL_SOUND_FRAME) {
01538 if (!PlayVehicleSound(t, VSE_TUNNEL) && RailVehInfo(t->engine_type)->engclass == 0) {
01539 SndPlayVehicleFx(SND_05_TRAIN_THROUGH_TUNNEL, v);
01540 }
01541 return VETSB_CONTINUE;
01542 }
01543 if (frame == _tunnel_visibility_frame[dir]) {
01544 t->tile = tile;
01545 t->track = TRACK_BIT_WORMHOLE;
01546 t->vehstatus |= VS_HIDDEN;
01547 return VETSB_ENTERED_WORMHOLE;
01548 }
01549 }
01550
01551 if (dir == ReverseDiagDir(vdir) && frame == TILE_SIZE - _tunnel_visibility_frame[dir] && z == 0) {
01552
01553 t->tile = tile;
01554 t->track = DiagDirToDiagTrackBits(vdir);
01555 assert(t->track);
01556 t->vehstatus &= ~VS_HIDDEN;
01557 return VETSB_ENTERED_WORMHOLE;
01558 }
01559 } else if (v->type == VEH_ROAD) {
01560 RoadVehicle *rv = RoadVehicle::From(v);
01561
01562
01563 if (rv->state != RVSB_WORMHOLE && dir == vdir) {
01564 if (frame == _tunnel_visibility_frame[dir]) {
01565
01566 assert(frame == rv->frame + 1);
01567 rv->tile = tile;
01568 rv->state = RVSB_WORMHOLE;
01569 rv->vehstatus |= VS_HIDDEN;
01570 return VETSB_ENTERED_WORMHOLE;
01571 } else {
01572 return VETSB_CONTINUE;
01573 }
01574 }
01575
01576
01577 if (dir == ReverseDiagDir(vdir) && frame == TILE_SIZE - _tunnel_visibility_frame[dir] && z == 0) {
01578 rv->tile = tile;
01579 rv->state = DiagDirToDiagTrackdir(vdir);
01580 rv->frame = frame;
01581 rv->vehstatus &= ~VS_HIDDEN;
01582 return VETSB_ENTERED_WORMHOLE;
01583 }
01584 }
01585 } else {
01586 if (v->type != VEH_SHIP) {
01587
01588 uint16 spd = GetBridgeSpec(GetBridgeType(tile))->speed;
01589
01590 if (v->type == VEH_ROAD) spd *= 2;
01591 Vehicle *first = v->First();
01592 first->cur_speed = min(first->cur_speed, spd);
01593 }
01594
01595 if (vdir == dir) {
01596
01597 if (frame != TILE_SIZE - 1) return VETSB_CONTINUE;
01598 switch (v->type) {
01599 case VEH_TRAIN: {
01600 Train *t = Train::From(v);
01601 t->track = TRACK_BIT_WORMHOLE;
01602 ClrBit(t->gv_flags, GVF_GOINGUP_BIT);
01603 ClrBit(t->gv_flags, GVF_GOINGDOWN_BIT);
01604 break;
01605 }
01606
01607 case VEH_ROAD: {
01608 RoadVehicle *rv = RoadVehicle::From(v);
01609 rv->state = RVSB_WORMHOLE;
01610
01611 ClrBit(rv->gv_flags, GVF_GOINGUP_BIT);
01612 ClrBit(rv->gv_flags, GVF_GOINGDOWN_BIT);
01613 break;
01614 }
01615
01616 case VEH_SHIP:
01617 Ship::From(v)->state = TRACK_BIT_WORMHOLE;
01618 break;
01619
01620 default: NOT_REACHED();
01621 }
01622 return VETSB_ENTERED_WORMHOLE;
01623 } else if (vdir == ReverseDiagDir(dir)) {
01624 v->tile = tile;
01625 switch (v->type) {
01626 case VEH_TRAIN: {
01627 Train *t = Train::From(v);
01628 if (t->track == TRACK_BIT_WORMHOLE) {
01629 t->track = DiagDirToDiagTrackBits(vdir);
01630 return VETSB_ENTERED_WORMHOLE;
01631 }
01632 break;
01633 }
01634
01635 case VEH_ROAD: {
01636 RoadVehicle *rv = RoadVehicle::From(v);
01637 if (rv->state == RVSB_WORMHOLE) {
01638 rv->state = DiagDirToDiagTrackdir(vdir);
01639 rv->frame = 0;
01640 return VETSB_ENTERED_WORMHOLE;
01641 }
01642 break;
01643 }
01644
01645 case VEH_SHIP: {
01646 Ship *ship = Ship::From(v);
01647 if (ship->state == TRACK_BIT_WORMHOLE) {
01648 ship->state = DiagDirToDiagTrackBits(vdir);
01649 return VETSB_ENTERED_WORMHOLE;
01650 }
01651 break;
01652 }
01653
01654 default: NOT_REACHED();
01655 }
01656 }
01657 }
01658 return VETSB_CONTINUE;
01659 }
01660
01661 static CommandCost TerraformTile_TunnelBridge(TileIndex tile, DoCommandFlag flags, uint z_new, Slope tileh_new)
01662 {
01663 if (_settings_game.construction.build_on_slopes && AutoslopeEnabled() && IsBridge(tile) && GetTunnelBridgeTransportType(tile) != TRANSPORT_WATER) {
01664 DiagDirection direction = GetTunnelBridgeDirection(tile);
01665 Axis axis = DiagDirToAxis(direction);
01666 CommandCost res;
01667 uint z_old;
01668 Slope tileh_old = GetTileSlope(tile, &z_old);
01669
01670
01671 if ((direction == DIAGDIR_NW) || (direction == DIAGDIR_NE)) {
01672 CheckBridgeSlopeSouth(axis, &tileh_old, &z_old);
01673 res = CheckBridgeSlopeSouth(axis, &tileh_new, &z_new);
01674 } else {
01675 CheckBridgeSlopeNorth(axis, &tileh_old, &z_old);
01676 res = CheckBridgeSlopeNorth(axis, &tileh_new, &z_new);
01677 }
01678
01679
01680 if (res.Succeeded() && (z_old == z_new) && (tileh_old == tileh_new)) return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
01681 }
01682
01683 return DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
01684 }
01685
01686 extern const TileTypeProcs _tile_type_tunnelbridge_procs = {
01687 DrawTile_TunnelBridge,
01688 GetSlopeZ_TunnelBridge,
01689 ClearTile_TunnelBridge,
01690 NULL,
01691 GetTileDesc_TunnelBridge,
01692 GetTileTrackStatus_TunnelBridge,
01693 NULL,
01694 NULL,
01695 TileLoop_TunnelBridge,
01696 ChangeTileOwner_TunnelBridge,
01697 NULL,
01698 VehicleEnter_TunnelBridge,
01699 GetFoundation_TunnelBridge,
01700 TerraformTile_TunnelBridge,
01701 };