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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 "clear_func.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
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
00098 Foundation GetBridgeFoundation(Slope tileh, Axis axis)
00099 {
00100 if (tileh == SLOPE_FLAT ||
00101 ((tileh == SLOPE_NE || tileh == SLOPE_SW) && axis == AXIS_X) ||
00102 ((tileh == SLOPE_NW || tileh == SLOPE_SE) && axis == AXIS_Y)) return FOUNDATION_NONE;
00103
00104 return (HasSlopeHighestCorner(tileh) ? InclinedFoundation(axis) : FlatteningFoundation(tileh));
00105 }
00106
00114 bool HasBridgeFlatRamp(Slope tileh, Axis axis)
00115 {
00116 ApplyFoundationToSlope(GetBridgeFoundation(tileh, axis), &tileh);
00117
00118 return (tileh != SLOPE_FLAT);
00119 }
00120
00121 static inline const PalSpriteID *GetBridgeSpriteTable(int index, BridgePieces table)
00122 {
00123 const BridgeSpec *bridge = GetBridgeSpec(index);
00124 assert(table < BRIDGE_PIECE_INVALID);
00125 if (bridge->sprite_table == NULL || bridge->sprite_table[table] == NULL) {
00126 return _bridge_sprite_table[index][table];
00127 } else {
00128 return bridge->sprite_table[table];
00129 }
00130 }
00131
00132
00141 static CommandCost CheckBridgeSlopeNorth(Axis axis, Slope *tileh, uint *z)
00142 {
00143 Foundation f = GetBridgeFoundation(*tileh, axis);
00144 *z += ApplyFoundationToSlope(f, tileh);
00145
00146 Slope valid_inclined = (axis == AXIS_X ? SLOPE_NE : SLOPE_NW);
00147 if ((*tileh != SLOPE_FLAT) && (*tileh != valid_inclined)) return CMD_ERROR;
00148
00149 if (f == FOUNDATION_NONE) return CommandCost();
00150
00151 return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
00152 }
00153
00162 static CommandCost CheckBridgeSlopeSouth(Axis axis, Slope *tileh, uint *z)
00163 {
00164 Foundation f = GetBridgeFoundation(*tileh, axis);
00165 *z += ApplyFoundationToSlope(f, tileh);
00166
00167 Slope valid_inclined = (axis == AXIS_X ? SLOPE_SW : SLOPE_SE);
00168 if ((*tileh != SLOPE_FLAT) && (*tileh != valid_inclined)) return CMD_ERROR;
00169
00170 if (f == FOUNDATION_NONE) return CommandCost();
00171
00172 return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
00173 }
00174
00181 CommandCost CheckBridgeAvailability(BridgeType bridge_type, uint bridge_len, DoCommandFlag flags)
00182 {
00183 if (flags & DC_QUERY_COST) {
00184 if (bridge_len <= _settings_game.construction.max_bridge_length) return CommandCost();
00185 return_cmd_error(STR_ERROR_BRIDGE_TOO_LONG);
00186 }
00187
00188 if (bridge_type >= MAX_BRIDGES) return CMD_ERROR;
00189
00190 const BridgeSpec *b = GetBridgeSpec(bridge_type);
00191 if (b->avail_year > _cur_year) return CMD_ERROR;
00192
00193 uint max = min(b->max_length, _settings_game.construction.max_bridge_length);
00194
00195 if (b->min_length > bridge_len) return CMD_ERROR;
00196 if (bridge_len <= max) return CommandCost();
00197 return_cmd_error(STR_ERROR_BRIDGE_TOO_LONG);
00198 }
00199
00212 CommandCost CmdBuildBridge(TileIndex end_tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00213 {
00214 RailType railtype = INVALID_RAILTYPE;
00215 RoadTypes roadtypes = ROADTYPES_NONE;
00216
00217
00218 BridgeType bridge_type = GB(p2, 0, 8);
00219
00220 if (!IsValidTile(p1)) return_cmd_error(STR_ERROR_BRIDGE_THROUGH_MAP_BORDER);
00221
00222 TransportType transport_type = Extract<TransportType, 15, 2>(p2);
00223
00224
00225 switch (transport_type) {
00226 case TRANSPORT_ROAD:
00227 roadtypes = Extract<RoadTypes, 8, 2>(p2);
00228 if (!HasExactlyOneBit(roadtypes) || !HasRoadTypesAvail(_current_company, roadtypes)) return CMD_ERROR;
00229 break;
00230
00231 case TRANSPORT_RAIL:
00232 railtype = Extract<RailType, 8, 4>(p2);
00233 if (!ValParamRailtype(railtype)) return CMD_ERROR;
00234 break;
00235
00236 case TRANSPORT_WATER:
00237 break;
00238
00239 default:
00240
00241 return CMD_ERROR;
00242 }
00243 TileIndex tile_start = p1;
00244 TileIndex tile_end = end_tile;
00245
00246 if (tile_start == tile_end) {
00247 return_cmd_error(STR_ERROR_CAN_T_START_AND_END_ON);
00248 }
00249
00250 Axis direction;
00251 if (TileX(tile_start) == TileX(tile_end)) {
00252 direction = AXIS_Y;
00253 } else if (TileY(tile_start) == TileY(tile_end)) {
00254 direction = AXIS_X;
00255 } else {
00256 return_cmd_error(STR_ERROR_START_AND_END_MUST_BE_IN);
00257 }
00258
00259 if (tile_end < tile_start) Swap(tile_start, tile_end);
00260
00261 uint bridge_len = GetTunnelBridgeLength(tile_start, tile_end);
00262 if (transport_type != TRANSPORT_WATER) {
00263
00264 CommandCost ret = CheckBridgeAvailability(bridge_type, bridge_len, flags);
00265 if (ret.Failed()) return ret;
00266 } else {
00267 if (bridge_len > _settings_game.construction.max_bridge_length) return_cmd_error(STR_ERROR_BRIDGE_TOO_LONG);
00268 }
00269
00270 uint z_start;
00271 uint z_end;
00272 Slope tileh_start = GetTileSlope(tile_start, &z_start);
00273 Slope tileh_end = GetTileSlope(tile_end, &z_end);
00274 bool pbs_reservation = false;
00275
00276 CommandCost terraform_cost_north = CheckBridgeSlopeNorth(direction, &tileh_start, &z_start);
00277 CommandCost terraform_cost_south = CheckBridgeSlopeSouth(direction, &tileh_end, &z_end);
00278
00279
00280 if (transport_type == TRANSPORT_WATER && (tileh_start == SLOPE_FLAT || tileh_end == SLOPE_FLAT)) return_cmd_error(STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION);
00281 if (z_start != z_end) return_cmd_error(STR_ERROR_BRIDGEHEADS_NOT_SAME_HEIGHT);
00282
00283 CommandCost cost(EXPENSES_CONSTRUCTION);
00284 Owner owner;
00285 if (IsBridgeTile(tile_start) && IsBridgeTile(tile_end) &&
00286 GetOtherBridgeEnd(tile_start) == tile_end &&
00287 GetTunnelBridgeTransportType(tile_start) == transport_type) {
00288
00289
00290
00291 if (transport_type == TRANSPORT_RAIL && GetRailType(tile_start) != railtype) {
00292 return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00293 }
00294
00295
00296 if (!(flags & DC_QUERY_COST) && IsTileOwner(tile_start, OWNER_TOWN) &&
00297 GetBridgeSpec(bridge_type)->speed < GetBridgeSpec(GetBridgeType(tile_start))->speed) {
00298 Town *t = ClosestTownFromTile(tile_start, UINT_MAX);
00299
00300 if (t == NULL) {
00301 return CMD_ERROR;
00302 } else {
00303 SetDParam(0, t->index);
00304 return_cmd_error(STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS);
00305 }
00306 }
00307
00308
00309 if (!(flags & DC_QUERY_COST) && bridge_type == GetBridgeType(tile_start)) {
00310 return_cmd_error(STR_ERROR_ALREADY_BUILT);
00311 }
00312
00313
00314 if (!IsTileOwner(tile_start, _current_company) && !IsTileOwner(tile_start, OWNER_TOWN)) {
00315 return_cmd_error(STR_ERROR_AREA_IS_OWNED_BY_ANOTHER);
00316 }
00317
00318 cost.AddCost((bridge_len + 1) * _price[PR_CLEAR_BRIDGE]);
00319 owner = GetTileOwner(tile_start);
00320
00321 switch (transport_type) {
00322 case TRANSPORT_RAIL:
00323
00324 pbs_reservation = HasTunnelBridgeReservation(tile_start);
00325 break;
00326
00327 case TRANSPORT_ROAD:
00328
00329 roadtypes |= GetRoadTypes(tile_start);
00330 break;
00331
00332 default: break;
00333 }
00334 } else {
00335
00336
00337 bool allow_on_slopes = (_settings_game.construction.build_on_slopes && transport_type != TRANSPORT_WATER);
00338
00339
00340 CommandCost ret = DoCommand(tile_start, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00341 if (ret.Failed()) return ret;
00342 cost = ret;
00343
00344 if (terraform_cost_north.Failed() || (terraform_cost_north.GetCost() != 0 && !allow_on_slopes)) return_cmd_error(STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION);
00345 cost.AddCost(terraform_cost_north);
00346
00347
00348 ret = DoCommand(tile_end, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00349 if (ret.Failed()) return ret;
00350 cost.AddCost(ret);
00351
00352
00353 if (terraform_cost_south.Failed() || (terraform_cost_south.GetCost() != 0 && !allow_on_slopes)) return_cmd_error(STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION);
00354 cost.AddCost(terraform_cost_south);
00355
00356 const TileIndex heads[] = {tile_start, tile_end};
00357 for (int i = 0; i < 2; i++) {
00358 if (MayHaveBridgeAbove(heads[i])) {
00359 if (IsBridgeAbove(heads[i])) {
00360 TileIndex north_head = GetNorthernBridgeEnd(heads[i]);
00361
00362 if (direction == GetBridgeAxis(heads[i])) return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00363
00364 if (z_start + TILE_HEIGHT == GetBridgeHeight(north_head)) {
00365 return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00366 }
00367 }
00368 }
00369 }
00370
00371 TileIndexDiff delta = (direction == AXIS_X ? TileDiffXY(1, 0) : TileDiffXY(0, 1));
00372 for (TileIndex tile = tile_start + delta; tile != tile_end; tile += delta) {
00373 if (GetTileMaxZ(tile) > z_start) return_cmd_error(STR_ERROR_BRIDGE_TOO_LOW_FOR_TERRAIN);
00374
00375 if (MayHaveBridgeAbove(tile) && IsBridgeAbove(tile)) {
00376
00377 return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00378 }
00379
00380 switch (GetTileType(tile)) {
00381 case MP_WATER:
00382 if (!IsWater(tile) && !IsCoast(tile)) goto not_valid_below;
00383 break;
00384
00385 case MP_RAILWAY:
00386 if (!IsPlainRail(tile)) goto not_valid_below;
00387 break;
00388
00389 case MP_ROAD:
00390 if (IsRoadDepot(tile)) goto not_valid_below;
00391 break;
00392
00393 case MP_TUNNELBRIDGE:
00394 if (IsTunnel(tile)) break;
00395 if (direction == DiagDirToAxis(GetTunnelBridgeDirection(tile))) goto not_valid_below;
00396 if (z_start < GetBridgeHeight(tile)) goto not_valid_below;
00397 break;
00398
00399 case MP_OBJECT: {
00400 const ObjectSpec *spec = ObjectSpec::GetByTile(tile);
00401 if ((spec->flags & OBJECT_FLAG_ALLOW_UNDER_BRIDGE) == 0) goto not_valid_below;
00402 if (GetTileMaxZ(tile) + spec->height * TILE_HEIGHT > z_start) goto not_valid_below;
00403 break;
00404 }
00405
00406 case MP_CLEAR:
00407 break;
00408
00409 default:
00410 not_valid_below:;
00411
00412 ret = DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00413 if (ret.Failed()) return ret;
00414 cost.AddCost(ret);
00415 break;
00416 }
00417
00418 if (flags & DC_EXEC) {
00419
00420
00421
00422 SetBridgeMiddle(tile, direction);
00423 }
00424 }
00425
00426 owner = _current_company;
00427 }
00428
00429
00430 if (flags & DC_EXEC) {
00431 DiagDirection dir = AxisToDiagDir(direction);
00432
00433 switch (transport_type) {
00434 case TRANSPORT_RAIL:
00435 MakeRailBridgeRamp(tile_start, owner, bridge_type, dir, railtype);
00436 MakeRailBridgeRamp(tile_end, owner, bridge_type, ReverseDiagDir(dir), railtype);
00437 SetTunnelBridgeReservation(tile_start, pbs_reservation);
00438 SetTunnelBridgeReservation(tile_end, pbs_reservation);
00439 break;
00440
00441 case TRANSPORT_ROAD:
00442 MakeRoadBridgeRamp(tile_start, owner, bridge_type, dir, roadtypes);
00443 MakeRoadBridgeRamp(tile_end, owner, bridge_type, ReverseDiagDir(dir), roadtypes);
00444 break;
00445
00446 case TRANSPORT_WATER:
00447 MakeAqueductBridgeRamp(tile_start, owner, dir);
00448 MakeAqueductBridgeRamp(tile_end, owner, ReverseDiagDir(dir));
00449 break;
00450
00451 default:
00452 NOT_REACHED();
00453 }
00454
00455
00456 TileIndexDiff delta = (direction == AXIS_X ? TileDiffXY(1, 0) : TileDiffXY(0, 1));
00457 for (TileIndex tile = tile_start; tile <= tile_end; tile += delta) {
00458 MarkTileDirtyByTile(tile);
00459 }
00460 }
00461
00462 if ((flags & DC_EXEC) && transport_type == TRANSPORT_RAIL) {
00463 Track track = AxisToTrack(direction);
00464 AddSideToSignalBuffer(tile_start, INVALID_DIAGDIR, _current_company);
00465 YapfNotifyTrackLayoutChange(tile_start, track);
00466 }
00467
00468
00469
00470
00471
00472 Company *c = Company::GetIfValid(_current_company);
00473 if (!(flags & DC_QUERY_COST) || (c != NULL && c->is_ai)) {
00474 bridge_len += 2;
00475
00476 switch (transport_type) {
00477 case TRANSPORT_ROAD: cost.AddCost(bridge_len * _price[PR_BUILD_ROAD] * 2); break;
00478 case TRANSPORT_RAIL: cost.AddCost(bridge_len * RailBuildCost(railtype)); break;
00479 default: break;
00480 }
00481
00482 if (c != NULL) bridge_len = CalcBridgeLenCostFactor(bridge_len);
00483
00484 if (transport_type != TRANSPORT_WATER) {
00485 cost.AddCost((int64)bridge_len * _price[PR_BUILD_BRIDGE] * GetBridgeSpec(bridge_type)->price >> 8);
00486 } else {
00487
00488 cost.AddCost((int64)bridge_len * _price[PR_BUILD_AQUEDUCT]);
00489 }
00490
00491 }
00492
00493 return cost;
00494 }
00495
00496
00507 CommandCost CmdBuildTunnel(TileIndex start_tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00508 {
00509 TransportType transport_type = Extract<TransportType, 8, 2>(p1);
00510
00511 RailType railtype = INVALID_RAILTYPE;
00512 RoadTypes rts = ROADTYPES_NONE;
00513 _build_tunnel_endtile = 0;
00514 switch (transport_type) {
00515 case TRANSPORT_RAIL:
00516 railtype = Extract<RailType, 0, 4>(p1);
00517 if (!ValParamRailtype(railtype)) return CMD_ERROR;
00518 break;
00519
00520 case TRANSPORT_ROAD:
00521 rts = Extract<RoadTypes, 0, 2>(p1);
00522 if (!HasExactlyOneBit(rts) || !HasRoadTypesAvail(_current_company, rts)) return CMD_ERROR;
00523 break;
00524
00525 default: return CMD_ERROR;
00526 }
00527
00528 uint start_z;
00529 uint end_z;
00530 Slope start_tileh = GetTileSlope(start_tile, &start_z);
00531 DiagDirection direction = GetInclinedSlopeDirection(start_tileh);
00532 if (direction == INVALID_DIAGDIR) return_cmd_error(STR_ERROR_SITE_UNSUITABLE_FOR_TUNNEL);
00533
00534 if (HasTileWaterGround(start_tile)) return_cmd_error(STR_ERROR_CAN_T_BUILD_ON_WATER);
00535
00536 CommandCost ret = DoCommand(start_tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00537 if (ret.Failed()) return ret;
00538
00539
00540
00541
00542
00543
00544 TileIndexDiff delta = TileOffsByDiagDir(direction);
00545 DiagDirection tunnel_in_way_dir;
00546 if (DiagDirToAxis(direction) == AXIS_Y) {
00547 tunnel_in_way_dir = (TileX(start_tile) < (MapMaxX() / 2)) ? DIAGDIR_SW : DIAGDIR_NE;
00548 } else {
00549 tunnel_in_way_dir = (TileY(start_tile) < (MapMaxX() / 2)) ? DIAGDIR_SE : DIAGDIR_NW;
00550 }
00551
00552 TileIndex end_tile = start_tile;
00553
00554
00555 int tiles_coef = 3;
00556
00557 int tiles = 0;
00558
00559 int tiles_bump = 25;
00560
00561 CommandCost cost(EXPENSES_CONSTRUCTION);
00562 Slope end_tileh;
00563 for (;;) {
00564 end_tile += delta;
00565 if (!IsValidTile(end_tile)) return_cmd_error(STR_ERROR_TUNNEL_THROUGH_MAP_BORDER);
00566 end_tileh = GetTileSlope(end_tile, &end_z);
00567
00568 if (start_z == end_z) break;
00569
00570 if (!_cheats.crossing_tunnels.value && IsTunnelInWayDir(end_tile, start_z, tunnel_in_way_dir)) {
00571 return_cmd_error(STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY);
00572 }
00573
00574 tiles++;
00575 if (tiles == tiles_bump) {
00576 tiles_coef++;
00577 tiles_bump *= 2;
00578 }
00579
00580 cost.AddCost(_price[PR_BUILD_TUNNEL]);
00581 cost.AddCost(cost.GetCost() >> tiles_coef);
00582 }
00583
00584
00585 cost.AddCost(_price[PR_BUILD_TUNNEL]);
00586 cost.AddCost(ret);
00587
00588
00589 _build_tunnel_endtile = end_tile;
00590
00591 if (tiles > _settings_game.construction.max_tunnel_length) return_cmd_error(STR_ERROR_TUNNEL_TOO_LONG);
00592
00593 if (HasTileWaterGround(end_tile)) return_cmd_error(STR_ERROR_CAN_T_BUILD_ON_WATER);
00594
00595
00596 ret = DoCommand(end_tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00597 if (ret.Failed()) return_cmd_error(STR_ERROR_UNABLE_TO_EXCAVATE_LAND);
00598 cost.AddCost(ret);
00599
00600
00601 if (end_tileh != ComplementSlope(start_tileh)) {
00602
00603
00604 ClearedObjectArea *coa = FindClearedObject(end_tile);
00605 if (coa == NULL) {
00606 coa = _cleared_object_areas.Append();
00607 coa->first_tile = end_tile;
00608 coa->area = TileArea(end_tile, 1, 1);
00609 }
00610
00611
00612 TileIndex old_first_tile = coa->first_tile;
00613 coa->first_tile = INVALID_TILE;
00614 ret = DoCommand(end_tile, end_tileh & start_tileh, 0, flags, CMD_TERRAFORM_LAND);
00615 coa->first_tile = old_first_tile;
00616 if (ret.Failed()) return_cmd_error(STR_ERROR_UNABLE_TO_EXCAVATE_LAND);
00617 cost.AddCost(ret);
00618 }
00619 cost.AddCost(_price[PR_BUILD_TUNNEL]);
00620
00621
00622 switch (transport_type) {
00623 case TRANSPORT_ROAD: cost.AddCost((tiles + 2) * _price[PR_BUILD_ROAD] * 2); break;
00624 case TRANSPORT_RAIL: cost.AddCost((tiles + 2) * RailBuildCost(railtype)); break;
00625 default: break;
00626 }
00627
00628 if (flags & DC_EXEC) {
00629 if (transport_type == TRANSPORT_RAIL) {
00630 MakeRailTunnel(start_tile, _current_company, direction, railtype);
00631 MakeRailTunnel(end_tile, _current_company, ReverseDiagDir(direction), railtype);
00632 AddSideToSignalBuffer(start_tile, INVALID_DIAGDIR, _current_company);
00633 YapfNotifyTrackLayoutChange(start_tile, DiagDirToDiagTrack(direction));
00634 } else {
00635 MakeRoadTunnel(start_tile, _current_company, direction, rts);
00636 MakeRoadTunnel(end_tile, _current_company, ReverseDiagDir(direction), rts);
00637 }
00638 }
00639
00640 return cost;
00641 }
00642
00643
00649 static inline CommandCost CheckAllowRemoveTunnelBridge(TileIndex tile)
00650 {
00651
00652 if (_current_company == OWNER_WATER || _game_mode == GM_EDITOR) return CommandCost();
00653
00654 switch (GetTunnelBridgeTransportType(tile)) {
00655 case TRANSPORT_ROAD: {
00656 RoadTypes rts = GetRoadTypes(tile);
00657 Owner road_owner = _current_company;
00658 Owner tram_owner = _current_company;
00659
00660 if (HasBit(rts, ROADTYPE_ROAD)) road_owner = GetRoadOwner(tile, ROADTYPE_ROAD);
00661 if (HasBit(rts, ROADTYPE_TRAM)) tram_owner = GetRoadOwner(tile, ROADTYPE_TRAM);
00662
00663
00664 if (road_owner == OWNER_TOWN && !(_settings_game.construction.extra_dynamite || _cheats.magic_bulldozer.value)) {
00665 return CheckTileOwnership(tile);
00666 }
00667 if (road_owner == OWNER_NONE || road_owner == OWNER_TOWN) road_owner = _current_company;
00668 if (tram_owner == OWNER_NONE) tram_owner = _current_company;
00669
00670 CommandCost ret = CheckOwnership(road_owner, tile);
00671 if (ret.Succeeded()) ret = CheckOwnership(tram_owner, tile);
00672 return ret;
00673 }
00674
00675 case TRANSPORT_RAIL:
00676 case TRANSPORT_WATER:
00677 return CheckOwnership(GetTileOwner(tile));
00678
00679 default: NOT_REACHED();
00680 }
00681 }
00682
00689 static CommandCost DoClearTunnel(TileIndex tile, DoCommandFlag flags)
00690 {
00691 CommandCost ret = CheckAllowRemoveTunnelBridge(tile);
00692 if (ret.Failed()) return ret;
00693
00694 TileIndex endtile = GetOtherTunnelEnd(tile);
00695
00696 ret = TunnelBridgeIsFree(tile, endtile);
00697 if (ret.Failed()) return ret;
00698
00699 _build_tunnel_endtile = endtile;
00700
00701 Town *t = NULL;
00702 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00703 t = ClosestTownFromTile(tile, UINT_MAX);
00704
00705
00706
00707 CommandCost ret = CheckforTownRating(flags, t, TUNNELBRIDGE_REMOVE);
00708 if (ret.Failed()) return ret;
00709 }
00710
00711
00712
00713 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00714 ChangeTownRating(t, RATING_TUNNEL_BRIDGE_DOWN_STEP, RATING_TUNNEL_BRIDGE_MINIMUM, flags);
00715 }
00716
00717 if (flags & DC_EXEC) {
00718 if (GetTunnelBridgeTransportType(tile) == TRANSPORT_RAIL) {
00719
00720 DiagDirection dir = GetTunnelBridgeDirection(tile);
00721 Track track = DiagDirToDiagTrack(dir);
00722 Owner owner = GetTileOwner(tile);
00723
00724 Train *v = NULL;
00725 if (HasTunnelBridgeReservation(tile)) {
00726 v = GetTrainForReservation(tile, track);
00727 if (v != NULL) FreeTrainTrackReservation(v);
00728 }
00729
00730 DoClearSquare(tile);
00731 DoClearSquare(endtile);
00732
00733
00734 AddSideToSignalBuffer(tile, ReverseDiagDir(dir), owner);
00735 AddSideToSignalBuffer(endtile, dir, owner);
00736
00737 YapfNotifyTrackLayoutChange(tile, track);
00738 YapfNotifyTrackLayoutChange(endtile, track);
00739
00740 if (v != NULL) TryPathReserve(v);
00741 } else {
00742 DoClearSquare(tile);
00743 DoClearSquare(endtile);
00744 }
00745 }
00746 return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_CLEAR_TUNNEL] * (GetTunnelBridgeLength(tile, endtile) + 2));
00747 }
00748
00749
00756 static CommandCost DoClearBridge(TileIndex tile, DoCommandFlag flags)
00757 {
00758 CommandCost ret = CheckAllowRemoveTunnelBridge(tile);
00759 if (ret.Failed()) return ret;
00760
00761 TileIndex endtile = GetOtherBridgeEnd(tile);
00762
00763 ret = TunnelBridgeIsFree(tile, endtile);
00764 if (ret.Failed()) return ret;
00765
00766 DiagDirection direction = GetTunnelBridgeDirection(tile);
00767 TileIndexDiff delta = TileOffsByDiagDir(direction);
00768
00769 Town *t = NULL;
00770 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00771 t = ClosestTownFromTile(tile, UINT_MAX);
00772
00773
00774
00775 CommandCost ret = CheckforTownRating(flags, t, TUNNELBRIDGE_REMOVE);
00776 if (ret.Failed()) return ret;
00777 }
00778
00779
00780
00781 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00782 ChangeTownRating(t, RATING_TUNNEL_BRIDGE_DOWN_STEP, RATING_TUNNEL_BRIDGE_MINIMUM, flags);
00783 }
00784
00785 Money base_cost = (GetTunnelBridgeTransportType(tile) != TRANSPORT_WATER) ? _price[PR_CLEAR_BRIDGE] : _price[PR_CLEAR_AQUEDUCT];
00786
00787 if (flags & DC_EXEC) {
00788
00789 bool rail = GetTunnelBridgeTransportType(tile) == TRANSPORT_RAIL;
00790 Owner owner = GetTileOwner(tile);
00791 uint height = GetBridgeHeight(tile);
00792 Train *v = NULL;
00793
00794 if (rail && HasTunnelBridgeReservation(tile)) {
00795 v = GetTrainForReservation(tile, DiagDirToDiagTrack(direction));
00796 if (v != NULL) FreeTrainTrackReservation(v);
00797 }
00798
00799 DoClearSquare(tile);
00800 DoClearSquare(endtile);
00801 for (TileIndex c = tile + delta; c != endtile; c += delta) {
00802
00803 if (IsNormalRoadTile(c) && GetRoadside(c) == ROADSIDE_TREES) {
00804 uint minz = GetTileMaxZ(c) + 3 * TILE_HEIGHT;
00805 if (height < minz) SetRoadside(c, ROADSIDE_PAVED);
00806 }
00807 ClearBridgeMiddle(c);
00808 MarkTileDirtyByTile(c);
00809 }
00810
00811 if (rail) {
00812
00813 AddSideToSignalBuffer(tile, ReverseDiagDir(direction), owner);
00814 AddSideToSignalBuffer(endtile, direction, owner);
00815
00816 Track track = DiagDirToDiagTrack(direction);
00817 YapfNotifyTrackLayoutChange(tile, track);
00818 YapfNotifyTrackLayoutChange(endtile, track);
00819
00820 if (v != NULL) TryPathReserve(v, true);
00821 }
00822 }
00823
00824 return CommandCost(EXPENSES_CONSTRUCTION, (GetTunnelBridgeLength(tile, endtile) + 2) * base_cost);
00825 }
00826
00833 static CommandCost ClearTile_TunnelBridge(TileIndex tile, DoCommandFlag flags)
00834 {
00835 if (IsTunnel(tile)) {
00836 if (flags & DC_AUTO) return_cmd_error(STR_ERROR_MUST_DEMOLISH_TUNNEL_FIRST);
00837 return DoClearTunnel(tile, flags);
00838 } else {
00839 if (flags & DC_AUTO) return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00840 return DoClearBridge(tile, flags);
00841 }
00842 }
00843
00854 static inline void DrawPillar(const PalSpriteID *psid, int x, int y, int z, int w, int h, const SubSprite *subsprite)
00855 {
00856 static const int PILLAR_Z_OFFSET = TILE_HEIGHT - BRIDGE_Z_START;
00857 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);
00858 }
00859
00871 static int DrawPillarColumn(int z_bottom, int z_top, const PalSpriteID *psid, int x, int y, int w, int h)
00872 {
00873 int cur_z;
00874 for (cur_z = z_top; cur_z >= z_bottom; cur_z -= TILE_HEIGHT) {
00875 DrawPillar(psid, x, y, cur_z, w, h, NULL);
00876 }
00877 return cur_z;
00878 }
00879
00891 static void DrawBridgePillars(const PalSpriteID *psid, const TileInfo *ti, Axis axis, bool drawfarpillar, int x, int y, int z_bridge)
00892 {
00893 static const int bounding_box_size[2] = {16, 2};
00894 static const int back_pillar_offset[2] = { 0, 9};
00895
00896 static const int INF = 1000;
00897 static const SubSprite half_pillar_sub_sprite[2][2] = {
00898 { { -14, -INF, INF, INF }, { -INF, -INF, -15, INF } },
00899 { { -INF, -INF, 15, INF }, { 16, -INF, INF, INF } },
00900 };
00901
00902 if (psid->sprite == 0) return;
00903
00904
00905 DiagDirection south_dir = AxisToDiagDir(axis);
00906 int z_front_north = ti->z;
00907 int z_back_north = ti->z;
00908 int z_front_south = ti->z;
00909 int z_back_south = ti->z;
00910 GetSlopeZOnEdge(ti->tileh, south_dir, &z_front_south, &z_back_south);
00911 GetSlopeZOnEdge(ti->tileh, ReverseDiagDir(south_dir), &z_front_north, &z_back_north);
00912
00913
00914 int z_front = max(z_front_north, z_front_south);
00915 int z_back = max(z_back_north, z_back_south);
00916
00917
00918 int w = bounding_box_size[axis];
00919 int h = bounding_box_size[OtherAxis(axis)];
00920
00921 int x_back = x - back_pillar_offset[axis];
00922 int y_back = y - back_pillar_offset[OtherAxis(axis)];
00923
00924
00925 int bottom_z = DrawPillarColumn(z_front, z_bridge, psid, x, y, w, h);
00926 if (z_front_north < z_front) DrawPillar(psid, x, y, bottom_z, w, h, &half_pillar_sub_sprite[axis][0]);
00927 if (z_front_south < z_front) DrawPillar(psid, x, y, bottom_z, w, h, &half_pillar_sub_sprite[axis][1]);
00928
00929
00930 int z_bridge_back = z_bridge - 2 * (int)TILE_HEIGHT;
00931 if (drawfarpillar && (z_back_north <= z_bridge_back || z_back_south <= z_bridge_back)) {
00932 bottom_z = DrawPillarColumn(z_back, z_bridge_back, psid, x_back, y_back, w, h);
00933 if (z_back_north < z_back) DrawPillar(psid, x_back, y_back, bottom_z, w, h, &half_pillar_sub_sprite[axis][0]);
00934 if (z_back_south < z_back) DrawPillar(psid, x_back, y_back, bottom_z, w, h, &half_pillar_sub_sprite[axis][1]);
00935 }
00936 }
00937
00947 static void DrawBridgeTramBits(int x, int y, byte z, int offset, bool overlay, bool head)
00948 {
00949 static const SpriteID tram_offsets[2][6] = { { 107, 108, 109, 110, 111, 112 }, { 4, 5, 15, 16, 17, 18 } };
00950 static const SpriteID back_offsets[6] = { 95, 96, 99, 102, 100, 101 };
00951 static const SpriteID front_offsets[6] = { 97, 98, 103, 106, 104, 105 };
00952
00953 static const uint size_x[6] = { 1, 16, 16, 1, 16, 1 };
00954 static const uint size_y[6] = { 16, 1, 1, 16, 1, 16 };
00955 static const uint front_bb_offset_x[6] = { 15, 0, 0, 15, 0, 15 };
00956 static const uint front_bb_offset_y[6] = { 0, 15, 15, 0, 15, 0 };
00957
00958
00959
00960 if (head || !IsInvisibilitySet(TO_BRIDGES)) {
00961 AddSortableSpriteToDraw(SPR_TRAMWAY_BASE + tram_offsets[overlay][offset], PAL_NONE,
00962 x, y, size_x[offset], size_y[offset], 0x28, z,
00963 !head && IsTransparencySet(TO_BRIDGES));
00964 }
00965
00966
00967 if (!IsInvisibilitySet(TO_CATENARY)) {
00968 AddSortableSpriteToDraw(SPR_TRAMWAY_BASE + back_offsets[offset], PAL_NONE,
00969 x, y, size_x[offset], size_y[offset], 0x28, z,
00970 IsTransparencySet(TO_CATENARY));
00971 }
00972
00973
00974 EndSpriteCombine();
00975 StartSpriteCombine();
00976
00977
00978 if (!IsInvisibilitySet(TO_CATENARY)) {
00979 AddSortableSpriteToDraw(SPR_TRAMWAY_BASE + front_offsets[offset], PAL_NONE,
00980 x, y, size_x[offset] + front_bb_offset_x[offset], size_y[offset] + front_bb_offset_y[offset], 0x28, z,
00981 IsTransparencySet(TO_CATENARY), front_bb_offset_x[offset], front_bb_offset_y[offset]);
00982 }
00983 }
00984
00998 static void DrawTile_TunnelBridge(TileInfo *ti)
00999 {
01000 TransportType transport_type = GetTunnelBridgeTransportType(ti->tile);
01001 DiagDirection tunnelbridge_direction = GetTunnelBridgeDirection(ti->tile);
01002
01003 if (IsTunnel(ti->tile)) {
01004
01005
01006
01007
01008
01009
01010
01011
01012
01013 static const int _tunnel_BB[4][12] = {
01014
01015
01016 { 1, 0, -15, -14, 0, 15, 16, 1, 0, 1, 16, 15 },
01017 { 0, 1, -14, -15, 15, 0, 1, 16, 1, 0, 15, 16 },
01018 { 1, 0, -15, -14, 0, 15, 16, 1, 0, 1, 16, 15 },
01019 { 0, 1, -14, -15, 15, 0, 1, 16, 1, 0, 15, 16 },
01020 };
01021 const int *BB_data = _tunnel_BB[tunnelbridge_direction];
01022
01023 bool catenary = false;
01024
01025 SpriteID image;
01026 if (transport_type == TRANSPORT_RAIL) {
01027 image = GetRailTypeInfo(GetRailType(ti->tile))->base_sprites.tunnel;
01028 } else {
01029 image = SPR_TUNNEL_ENTRY_REAR_ROAD;
01030 }
01031
01032 if (HasTunnelBridgeSnowOrDesert(ti->tile)) image += 32;
01033
01034 image += tunnelbridge_direction * 2;
01035 DrawGroundSprite(image, PAL_NONE);
01036
01037
01038 if (_game_mode != GM_MENU && _settings_client.gui.show_track_reservation && (transport_type == TRANSPORT_RAIL && HasTunnelBridgeReservation(ti->tile))) {
01039 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(ti->tile));
01040 DrawGroundSprite(DiagDirToAxis(tunnelbridge_direction) == AXIS_X ? rti->base_sprites.single_x : rti->base_sprites.single_y, PALETTE_CRASH);
01041 }
01042
01043 if (transport_type == TRANSPORT_ROAD) {
01044 RoadTypes rts = GetRoadTypes(ti->tile);
01045
01046 if (HasBit(rts, ROADTYPE_TRAM)) {
01047 static const SpriteID tunnel_sprites[2][4] = { { 28, 78, 79, 27 }, { 5, 76, 77, 4 } };
01048
01049 DrawGroundSprite(SPR_TRAMWAY_BASE + tunnel_sprites[rts - ROADTYPES_TRAM][tunnelbridge_direction], PAL_NONE);
01050
01051
01052 if (!IsInvisibilitySet(TO_CATENARY)) {
01053 catenary = true;
01054 StartSpriteCombine();
01055 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);
01056 }
01057 }
01058 } else {
01059 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(ti->tile));
01060 if (rti->UsesOverlay()) {
01061 SpriteID surface = GetCustomRailSprite(rti, ti->tile, RTSG_TUNNEL);
01062 if (surface != 0) DrawGroundSprite(surface + tunnelbridge_direction, PAL_NONE);
01063 }
01064
01065 if (HasCatenaryDrawn(GetRailType(ti->tile))) {
01066
01067 DrawCatenary(ti);
01068
01069 catenary = true;
01070 StartSpriteCombine();
01071
01072 DrawCatenaryOnTunnel(ti);
01073 }
01074 }
01075
01076 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);
01077
01078 if (catenary) EndSpriteCombine();
01079
01080
01081 AddSortableSpriteToDraw(SPR_EMPTY_BOUNDING_BOX, PAL_NONE, ti->x, ti->y, BB_data[6], BB_data[7], TILE_HEIGHT, ti->z);
01082 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);
01083
01084 DrawBridgeMiddle(ti);
01085 } else {
01086 const PalSpriteID *psid;
01087 int base_offset;
01088 bool ice = HasTunnelBridgeSnowOrDesert(ti->tile);
01089
01090 if (transport_type == TRANSPORT_RAIL) {
01091 base_offset = GetRailTypeInfo(GetRailType(ti->tile))->bridge_offset;
01092 assert(base_offset != 8);
01093 } else {
01094 base_offset = 8;
01095 }
01096
01097
01098 assert( (base_offset & 0x07) == 0x00);
01099
01100 DrawFoundation(ti, GetBridgeFoundation(ti->tileh, DiagDirToAxis(tunnelbridge_direction)));
01101
01102
01103 base_offset += (6 - tunnelbridge_direction) % 4;
01104
01105 if (ti->tileh == SLOPE_FLAT) base_offset += 4;
01106
01107
01108 if (transport_type != TRANSPORT_WATER) {
01109 psid = &GetBridgeSpriteTable(GetBridgeType(ti->tile), BRIDGE_PIECE_HEAD)[base_offset];
01110 } else {
01111 psid = _aqueduct_sprites + base_offset;
01112 }
01113
01114 if (!ice) {
01115 TileIndex next = ti->tile + TileOffsByDiagDir(tunnelbridge_direction);
01116 if (ti->tileh != SLOPE_FLAT && ti->z == 0 && HasTileWaterClass(next) && GetWaterClass(next) == WATER_CLASS_SEA) {
01117 DrawShoreTile(ti->tileh);
01118 } else {
01119 DrawClearLandTile(ti, 3);
01120 }
01121 } else {
01122 DrawGroundSprite(SPR_FLAT_SNOW_DESERT_TILE + SlopeToSpriteOffset(ti->tileh), PAL_NONE);
01123 }
01124
01125
01126
01127
01128 if (transport_type == TRANSPORT_ROAD || transport_type == TRANSPORT_RAIL) StartSpriteCombine();
01129
01130
01131
01132
01133
01134 AddSortableSpriteToDraw(psid->sprite, psid->pal, ti->x, ti->y, 16, 16, ti->tileh == SLOPE_FLAT ? 0 : 8, ti->z);
01135
01136 if (transport_type == TRANSPORT_ROAD) {
01137 RoadTypes rts = GetRoadTypes(ti->tile);
01138
01139 if (HasBit(rts, ROADTYPE_TRAM)) {
01140 uint offset = tunnelbridge_direction;
01141 uint z = ti->z;
01142 if (ti->tileh != SLOPE_FLAT) {
01143 offset = (offset + 1) & 1;
01144 z += TILE_HEIGHT;
01145 } else {
01146 offset += 2;
01147 }
01148
01149 DrawBridgeTramBits(ti->x, ti->y, z, offset, HasBit(rts, ROADTYPE_ROAD), true);
01150 }
01151 EndSpriteCombine();
01152 } else if (transport_type == TRANSPORT_RAIL) {
01153 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(ti->tile));
01154 if (rti->UsesOverlay()) {
01155 SpriteID surface = GetCustomRailSprite(rti, ti->tile, RTSG_BRIDGE);
01156 if (surface != 0) {
01157 if (HasBridgeFlatRamp(ti->tileh, DiagDirToAxis(tunnelbridge_direction))) {
01158 AddSortableSpriteToDraw(surface + ((DiagDirToAxis(tunnelbridge_direction) == AXIS_X) ? RTBO_X : RTBO_Y), PAL_NONE, ti->x, ti->y, 16, 16, 0, ti->z + 8);
01159 } else {
01160 AddSortableSpriteToDraw(surface + RTBO_SLOPE + tunnelbridge_direction, PAL_NONE, ti->x, ti->y, 16, 16, 8, ti->z);
01161 }
01162 }
01163
01164
01165
01166 } else if (_game_mode != GM_MENU &&_settings_client.gui.show_track_reservation && HasTunnelBridgeReservation(ti->tile)) {
01167 if (HasBridgeFlatRamp(ti->tileh, DiagDirToAxis(tunnelbridge_direction))) {
01168 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);
01169 } else {
01170 AddSortableSpriteToDraw(rti->base_sprites.single_sloped + tunnelbridge_direction, PALETTE_CRASH, ti->x, ti->y, 16, 16, 8, ti->z);
01171 }
01172 }
01173 EndSpriteCombine();
01174 if (HasCatenaryDrawn(GetRailType(ti->tile))) {
01175 DrawCatenary(ti);
01176 }
01177 }
01178
01179 DrawBridgeMiddle(ti);
01180 }
01181 }
01182
01183
01202 static BridgePieces CalcBridgePiece(uint north, uint south)
01203 {
01204 if (north == 1) {
01205 return BRIDGE_PIECE_NORTH;
01206 } else if (south == 1) {
01207 return BRIDGE_PIECE_SOUTH;
01208 } else if (north < south) {
01209 return north & 1 ? BRIDGE_PIECE_INNER_SOUTH : BRIDGE_PIECE_INNER_NORTH;
01210 } else if (north > south) {
01211 return south & 1 ? BRIDGE_PIECE_INNER_NORTH : BRIDGE_PIECE_INNER_SOUTH;
01212 } else {
01213 return north & 1 ? BRIDGE_PIECE_MIDDLE_EVEN : BRIDGE_PIECE_MIDDLE_ODD;
01214 }
01215 }
01216
01221 void DrawBridgeMiddle(const TileInfo *ti)
01222 {
01223
01224
01225
01226
01227
01228
01229
01230
01231
01232
01233
01234
01235
01236
01237
01238
01239 if (!IsBridgeAbove(ti->tile)) return;
01240
01241 TileIndex rampnorth = GetNorthernBridgeEnd(ti->tile);
01242 TileIndex rampsouth = GetSouthernBridgeEnd(ti->tile);
01243 TransportType transport_type = GetTunnelBridgeTransportType(rampsouth);
01244
01245 Axis axis = GetBridgeAxis(ti->tile);
01246 BridgePieces piece = CalcBridgePiece(
01247 GetTunnelBridgeLength(ti->tile, rampnorth) + 1,
01248 GetTunnelBridgeLength(ti->tile, rampsouth) + 1
01249 );
01250
01251 const PalSpriteID *psid;
01252 bool drawfarpillar;
01253 if (transport_type != TRANSPORT_WATER) {
01254 BridgeType type = GetBridgeType(rampsouth);
01255 drawfarpillar = !HasBit(GetBridgeSpec(type)->flags, 0);
01256
01257 uint base_offset;
01258 if (transport_type == TRANSPORT_RAIL) {
01259 base_offset = GetRailTypeInfo(GetRailType(rampsouth))->bridge_offset;
01260 } else {
01261 base_offset = 8;
01262 }
01263
01264 psid = base_offset + GetBridgeSpriteTable(type, piece);
01265 } else {
01266 drawfarpillar = true;
01267 psid = _aqueduct_sprites;
01268 }
01269
01270 if (axis != AXIS_X) psid += 4;
01271
01272 int x = ti->x;
01273 int y = ti->y;
01274 uint bridge_z = GetBridgeHeight(rampsouth);
01275 uint z = bridge_z - BRIDGE_Z_START;
01276
01277
01278 AddSortableSpriteToDraw(SPR_EMPTY_BOUNDING_BOX, PAL_NONE, x, y, 16, 16, 1, bridge_z - TILE_HEIGHT + BB_Z_SEPARATOR);
01279
01280
01281 if (transport_type == TRANSPORT_ROAD || transport_type == TRANSPORT_RAIL) StartSpriteCombine();
01282
01283
01284 if (!IsInvisibilitySet(TO_BRIDGES)) {
01285 if (axis == AXIS_X) {
01286 AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 16, 1, 0x28, z, IsTransparencySet(TO_BRIDGES), 0, 0, BRIDGE_Z_START);
01287 } else {
01288 AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 1, 16, 0x28, z, IsTransparencySet(TO_BRIDGES), 0, 0, BRIDGE_Z_START);
01289 }
01290 }
01291
01292 psid++;
01293
01294 if (transport_type == TRANSPORT_ROAD) {
01295 RoadTypes rts = GetRoadTypes(rampsouth);
01296
01297 if (HasBit(rts, ROADTYPE_TRAM)) {
01298
01299 DrawBridgeTramBits(x, y, bridge_z, axis ^ 1, HasBit(rts, ROADTYPE_ROAD), false);
01300 } else {
01301 EndSpriteCombine();
01302 StartSpriteCombine();
01303 }
01304 } else if (transport_type == TRANSPORT_RAIL) {
01305 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(rampsouth));
01306 if (rti->UsesOverlay()) {
01307 SpriteID surface = GetCustomRailSprite(rti, rampsouth, RTSG_BRIDGE, TCX_ON_BRIDGE);
01308 if (surface != 0) {
01309 AddSortableSpriteToDraw(surface + axis, PAL_NONE, x, y, 16, 16, 0, bridge_z, IsTransparencySet(TO_BRIDGES));
01310 }
01311 }
01312 EndSpriteCombine();
01313
01314 if (HasCatenaryDrawn(GetRailType(rampsouth))) {
01315 DrawCatenaryOnBridge(ti);
01316 }
01317 }
01318
01319
01320 if (!IsInvisibilitySet(TO_BRIDGES)) {
01321 if (axis == AXIS_X) {
01322 y += 12;
01323 if (psid->sprite & SPRITE_MASK) AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 16, 4, 0x28, z, IsTransparencySet(TO_BRIDGES), 0, 3, BRIDGE_Z_START);
01324 } else {
01325 x += 12;
01326 if (psid->sprite & SPRITE_MASK) AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 4, 16, 0x28, z, IsTransparencySet(TO_BRIDGES), 3, 0, BRIDGE_Z_START);
01327 }
01328 }
01329
01330
01331 if (transport_type == TRANSPORT_ROAD) EndSpriteCombine();
01332
01333
01334 if (IsInvisibilitySet(TO_BRIDGES)) return;
01335
01336 psid++;
01337 if (ti->z + 5 == z) {
01338
01339 if (psid->sprite != 0) {
01340 SpriteID image = psid->sprite;
01341 SpriteID pal = psid->pal;
01342 if (IsTransparencySet(TO_BRIDGES)) {
01343 SetBit(image, PALETTE_MODIFIER_TRANSPARENT);
01344 pal = PALETTE_TO_TRANSPARENT;
01345 }
01346
01347 DrawGroundSpriteAt(image, pal, x - ti->x, y - ti->y, z - ti->z);
01348 }
01349 } else {
01350
01351 DrawBridgePillars(psid, ti, axis, drawfarpillar, x, y, z);
01352 }
01353 }
01354
01355
01356 static uint GetSlopeZ_TunnelBridge(TileIndex tile, uint x, uint y)
01357 {
01358 uint z;
01359 Slope tileh = GetTileSlope(tile, &z);
01360
01361 x &= 0xF;
01362 y &= 0xF;
01363
01364 if (IsTunnel(tile)) {
01365 uint pos = (DiagDirToAxis(GetTunnelBridgeDirection(tile)) == AXIS_X ? y : x);
01366
01367
01368 if (5 <= pos && pos <= 10) return z;
01369 } else {
01370 DiagDirection dir = GetTunnelBridgeDirection(tile);
01371 uint pos = (DiagDirToAxis(dir) == AXIS_X ? y : x);
01372
01373 z += ApplyFoundationToSlope(GetBridgeFoundation(tileh, DiagDirToAxis(dir)), &tileh);
01374
01375
01376 if (5 <= pos && pos <= 10) {
01377 uint delta;
01378
01379 if (tileh != SLOPE_FLAT) return z + TILE_HEIGHT;
01380
01381 switch (dir) {
01382 default: NOT_REACHED();
01383 case DIAGDIR_NE: delta = (TILE_SIZE - 1 - x) / 2; break;
01384 case DIAGDIR_SE: delta = y / 2; break;
01385 case DIAGDIR_SW: delta = x / 2; break;
01386 case DIAGDIR_NW: delta = (TILE_SIZE - 1 - y) / 2; break;
01387 }
01388 return z + 1 + delta;
01389 }
01390 }
01391
01392 return z + GetPartialZ(x, y, tileh);
01393 }
01394
01395 static Foundation GetFoundation_TunnelBridge(TileIndex tile, Slope tileh)
01396 {
01397 return IsTunnel(tile) ? FOUNDATION_NONE : GetBridgeFoundation(tileh, DiagDirToAxis(GetTunnelBridgeDirection(tile)));
01398 }
01399
01400 static void GetTileDesc_TunnelBridge(TileIndex tile, TileDesc *td)
01401 {
01402 TransportType tt = GetTunnelBridgeTransportType(tile);
01403
01404 if (IsTunnel(tile)) {
01405 td->str = (tt == TRANSPORT_RAIL) ? STR_LAI_TUNNEL_DESCRIPTION_RAILROAD : STR_LAI_TUNNEL_DESCRIPTION_ROAD;
01406 } else {
01407 td->str = (tt == TRANSPORT_WATER) ? STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT : GetBridgeSpec(GetBridgeType(tile))->transport_name[tt];
01408 }
01409 td->owner[0] = GetTileOwner(tile);
01410
01411 Owner road_owner = INVALID_OWNER;
01412 Owner tram_owner = INVALID_OWNER;
01413 RoadTypes rts = GetRoadTypes(tile);
01414 if (HasBit(rts, ROADTYPE_ROAD)) road_owner = GetRoadOwner(tile, ROADTYPE_ROAD);
01415 if (HasBit(rts, ROADTYPE_TRAM)) tram_owner = GetRoadOwner(tile, ROADTYPE_TRAM);
01416
01417
01418 if ((tram_owner != INVALID_OWNER && tram_owner != td->owner[0]) ||
01419 (road_owner != INVALID_OWNER && road_owner != td->owner[0])) {
01420 uint i = 1;
01421 if (road_owner != INVALID_OWNER) {
01422 td->owner_type[i] = STR_LAND_AREA_INFORMATION_ROAD_OWNER;
01423 td->owner[i] = road_owner;
01424 i++;
01425 }
01426 if (tram_owner != INVALID_OWNER) {
01427 td->owner_type[i] = STR_LAND_AREA_INFORMATION_TRAM_OWNER;
01428 td->owner[i] = tram_owner;
01429 }
01430 }
01431
01432 if (tt == TRANSPORT_RAIL) {
01433 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(tile));
01434 td->rail_speed = rti->max_speed;
01435
01436 if (!IsTunnel(tile)) {
01437 uint16 spd = GetBridgeSpec(GetBridgeType(tile))->speed;
01438 if (td->rail_speed == 0 || spd < td->rail_speed) {
01439 td->rail_speed = spd;
01440 }
01441 }
01442 }
01443 }
01444
01445
01446 static void TileLoop_TunnelBridge(TileIndex tile)
01447 {
01448 bool snow_or_desert = HasTunnelBridgeSnowOrDesert(tile);
01449 switch (_settings_game.game_creation.landscape) {
01450 case LT_ARCTIC: {
01451
01452
01453
01454 uint z = IsBridge(tile) ? GetTileMaxZ(tile) : GetTileZ(tile);
01455 if (snow_or_desert != (z > GetSnowLine())) {
01456 SetTunnelBridgeSnowOrDesert(tile, !snow_or_desert);
01457 MarkTileDirtyByTile(tile);
01458 }
01459 break;
01460 }
01461
01462 case LT_TROPIC:
01463 if (GetTropicZone(tile) == TROPICZONE_DESERT && !snow_or_desert) {
01464 SetTunnelBridgeSnowOrDesert(tile, true);
01465 MarkTileDirtyByTile(tile);
01466 }
01467 break;
01468
01469 default:
01470 break;
01471 }
01472 }
01473
01474 static TrackStatus GetTileTrackStatus_TunnelBridge(TileIndex tile, TransportType mode, uint sub_mode, DiagDirection side)
01475 {
01476 TransportType transport_type = GetTunnelBridgeTransportType(tile);
01477 if (transport_type != mode || (transport_type == TRANSPORT_ROAD && (GetRoadTypes(tile) & sub_mode) == 0)) return 0;
01478
01479 DiagDirection dir = GetTunnelBridgeDirection(tile);
01480 if (side != INVALID_DIAGDIR && side != ReverseDiagDir(dir)) return 0;
01481 return CombineTrackStatus(TrackBitsToTrackdirBits(DiagDirToDiagTrackBits(dir)), TRACKDIR_BIT_NONE);
01482 }
01483
01484 static void ChangeTileOwner_TunnelBridge(TileIndex tile, Owner old_owner, Owner new_owner)
01485 {
01486 for (RoadType rt = ROADTYPE_ROAD; rt < ROADTYPE_END; rt++) {
01487
01488 if (GetRoadOwner(tile, rt) == old_owner) {
01489 SetRoadOwner(tile, rt, new_owner == INVALID_OWNER ? OWNER_NONE : new_owner);
01490 }
01491 }
01492
01493 if (!IsTileOwner(tile, old_owner)) return;
01494
01495 if (new_owner != INVALID_OWNER) {
01496 SetTileOwner(tile, new_owner);
01497 } else {
01498 if (GetTunnelBridgeTransportType(tile) == TRANSPORT_RAIL) {
01499
01500
01501 CommandCost ret = DoCommand(tile, 0, 0, DC_EXEC | DC_BANKRUPT, CMD_LANDSCAPE_CLEAR);
01502 assert(ret.Succeeded());
01503 } else {
01504
01505 SetTileOwner(tile, OWNER_NONE);
01506 }
01507 }
01508 }
01509
01515 static const byte TUNNEL_SOUND_FRAME = 1;
01516
01525 extern const byte _tunnel_visibility_frame[DIAGDIR_END] = {12, 8, 8, 12};
01526
01527 static VehicleEnterTileStatus VehicleEnter_TunnelBridge(Vehicle *v, TileIndex tile, int x, int y)
01528 {
01529 int z = GetSlopeZ(x, y) - v->z_pos;
01530
01531 if (abs(z) > 2) return VETSB_CANNOT_ENTER;
01532
01533 const DiagDirection dir = GetTunnelBridgeDirection(tile);
01534
01535 const DiagDirection vdir = DirToDiagDir(v->direction);
01536
01537 byte pos = (DiagDirToAxis(vdir) == AXIS_X ? x : y) & TILE_UNIT_MASK;
01538
01539 byte frame = (vdir == DIAGDIR_NE || vdir == DIAGDIR_NW) ? TILE_SIZE - 1 - pos : pos;
01540
01541 if (IsTunnel(tile)) {
01542 if (v->type == VEH_TRAIN) {
01543 Train *t = Train::From(v);
01544
01545 if (t->track != TRACK_BIT_WORMHOLE && dir == vdir) {
01546 if (t->IsFrontEngine() && frame == TUNNEL_SOUND_FRAME) {
01547 if (!PlayVehicleSound(t, VSE_TUNNEL) && RailVehInfo(t->engine_type)->engclass == 0) {
01548 SndPlayVehicleFx(SND_05_TRAIN_THROUGH_TUNNEL, v);
01549 }
01550 return VETSB_CONTINUE;
01551 }
01552 if (frame == _tunnel_visibility_frame[dir]) {
01553 t->tile = tile;
01554 t->track = TRACK_BIT_WORMHOLE;
01555 t->vehstatus |= VS_HIDDEN;
01556 return VETSB_ENTERED_WORMHOLE;
01557 }
01558 }
01559
01560 if (dir == ReverseDiagDir(vdir) && frame == TILE_SIZE - _tunnel_visibility_frame[dir] && z == 0) {
01561
01562 t->tile = tile;
01563 t->track = DiagDirToDiagTrackBits(vdir);
01564 assert(t->track);
01565 t->vehstatus &= ~VS_HIDDEN;
01566 return VETSB_ENTERED_WORMHOLE;
01567 }
01568 } else if (v->type == VEH_ROAD) {
01569 RoadVehicle *rv = RoadVehicle::From(v);
01570
01571
01572 if (rv->state != RVSB_WORMHOLE && dir == vdir) {
01573 if (frame == _tunnel_visibility_frame[dir]) {
01574
01575 assert(frame == rv->frame + 1);
01576 rv->tile = tile;
01577 rv->state = RVSB_WORMHOLE;
01578 rv->vehstatus |= VS_HIDDEN;
01579 return VETSB_ENTERED_WORMHOLE;
01580 } else {
01581 return VETSB_CONTINUE;
01582 }
01583 }
01584
01585
01586 if (dir == ReverseDiagDir(vdir) && frame == TILE_SIZE - _tunnel_visibility_frame[dir] && z == 0) {
01587 rv->tile = tile;
01588 rv->state = DiagDirToDiagTrackdir(vdir);
01589 rv->frame = frame;
01590 rv->vehstatus &= ~VS_HIDDEN;
01591 return VETSB_ENTERED_WORMHOLE;
01592 }
01593 }
01594 } else {
01595 if (v->type != VEH_SHIP) {
01596
01597 uint16 spd = GetBridgeSpec(GetBridgeType(tile))->speed;
01598
01599 if (v->type == VEH_ROAD) spd *= 2;
01600 Vehicle *first = v->First();
01601 first->cur_speed = min(first->cur_speed, spd);
01602 }
01603
01604 if (vdir == dir) {
01605
01606 if (frame != TILE_SIZE - 1) return VETSB_CONTINUE;
01607 switch (v->type) {
01608 case VEH_TRAIN: {
01609 Train *t = Train::From(v);
01610 t->track = TRACK_BIT_WORMHOLE;
01611 ClrBit(t->gv_flags, GVF_GOINGUP_BIT);
01612 ClrBit(t->gv_flags, GVF_GOINGDOWN_BIT);
01613 break;
01614 }
01615
01616 case VEH_ROAD: {
01617 RoadVehicle *rv = RoadVehicle::From(v);
01618 rv->state = RVSB_WORMHOLE;
01619
01620 ClrBit(rv->gv_flags, GVF_GOINGUP_BIT);
01621 ClrBit(rv->gv_flags, GVF_GOINGDOWN_BIT);
01622 break;
01623 }
01624
01625 case VEH_SHIP:
01626 Ship::From(v)->state = TRACK_BIT_WORMHOLE;
01627 break;
01628
01629 default: NOT_REACHED();
01630 }
01631 return VETSB_ENTERED_WORMHOLE;
01632 } else if (vdir == ReverseDiagDir(dir)) {
01633 v->tile = tile;
01634 switch (v->type) {
01635 case VEH_TRAIN: {
01636 Train *t = Train::From(v);
01637 if (t->track == TRACK_BIT_WORMHOLE) {
01638 t->track = DiagDirToDiagTrackBits(vdir);
01639 return VETSB_ENTERED_WORMHOLE;
01640 }
01641 break;
01642 }
01643
01644 case VEH_ROAD: {
01645 RoadVehicle *rv = RoadVehicle::From(v);
01646 if (rv->state == RVSB_WORMHOLE) {
01647 rv->state = DiagDirToDiagTrackdir(vdir);
01648 rv->frame = 0;
01649 return VETSB_ENTERED_WORMHOLE;
01650 }
01651 break;
01652 }
01653
01654 case VEH_SHIP: {
01655 Ship *ship = Ship::From(v);
01656 if (ship->state == TRACK_BIT_WORMHOLE) {
01657 ship->state = DiagDirToDiagTrackBits(vdir);
01658 return VETSB_ENTERED_WORMHOLE;
01659 }
01660 break;
01661 }
01662
01663 default: NOT_REACHED();
01664 }
01665 }
01666 }
01667 return VETSB_CONTINUE;
01668 }
01669
01670 static CommandCost TerraformTile_TunnelBridge(TileIndex tile, DoCommandFlag flags, uint z_new, Slope tileh_new)
01671 {
01672 if (_settings_game.construction.build_on_slopes && AutoslopeEnabled() && IsBridge(tile) && GetTunnelBridgeTransportType(tile) != TRANSPORT_WATER) {
01673 DiagDirection direction = GetTunnelBridgeDirection(tile);
01674 Axis axis = DiagDirToAxis(direction);
01675 CommandCost res;
01676 uint z_old;
01677 Slope tileh_old = GetTileSlope(tile, &z_old);
01678
01679
01680 if ((direction == DIAGDIR_NW) || (direction == DIAGDIR_NE)) {
01681 CheckBridgeSlopeSouth(axis, &tileh_old, &z_old);
01682 res = CheckBridgeSlopeSouth(axis, &tileh_new, &z_new);
01683 } else {
01684 CheckBridgeSlopeNorth(axis, &tileh_old, &z_old);
01685 res = CheckBridgeSlopeNorth(axis, &tileh_new, &z_new);
01686 }
01687
01688
01689 if (res.Succeeded() && (z_old == z_new) && (tileh_old == tileh_new)) return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
01690 }
01691
01692 return DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
01693 }
01694
01695 extern const TileTypeProcs _tile_type_tunnelbridge_procs = {
01696 DrawTile_TunnelBridge,
01697 GetSlopeZ_TunnelBridge,
01698 ClearTile_TunnelBridge,
01699 NULL,
01700 GetTileDesc_TunnelBridge,
01701 GetTileTrackStatus_TunnelBridge,
01702 NULL,
01703 NULL,
01704 TileLoop_TunnelBridge,
01705 ChangeTileOwner_TunnelBridge,
01706 NULL,
01707 VehicleEnter_TunnelBridge,
01708 GetFoundation_TunnelBridge,
01709 TerraformTile_TunnelBridge,
01710 };