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00015 #include "stdafx.h"
00016 #include "rail_map.h"
00017 #include "landscape.h"
00018 #include "unmovable_map.h"
00019 #include "viewport_func.h"
00020 #include "command_func.h"
00021 #include "town.h"
00022 #include "variables.h"
00023 #include "train.h"
00024 #include "ship.h"
00025 #include "roadveh.h"
00026 #include "water_map.h"
00027 #include "pathfinder/yapf/yapf_cache.h"
00028 #include "newgrf_sound.h"
00029 #include "autoslope.h"
00030 #include "tunnelbridge_map.h"
00031 #include "strings_func.h"
00032 #include "date_func.h"
00033 #include "functions.h"
00034 #include "vehicle_func.h"
00035 #include "sound_func.h"
00036 #include "tunnelbridge.h"
00037 #include "cheat_type.h"
00038 #include "elrail_func.h"
00039 #include "landscape_type.h"
00040 #include "pbs.h"
00041 #include "company_base.h"
00042 #include "engine_base.h"
00043 #include "newgrf_railtype.h"
00044
00045 #include "table/sprites.h"
00046 #include "table/strings.h"
00047 #include "table/bridge_land.h"
00048
00049 BridgeSpec _bridge[MAX_BRIDGES];
00050 TileIndex _build_tunnel_endtile;
00051
00053 void ResetBridges()
00054 {
00055
00056 for (BridgeType i = 0; i < MAX_BRIDGES; i++) {
00057 if (_bridge[i].sprite_table != NULL) {
00058 for (BridgePieces j = BRIDGE_PIECE_NORTH; j < BRIDGE_PIECE_INVALID; j++) free(_bridge[i].sprite_table[j]);
00059 free(_bridge[i].sprite_table);
00060 }
00061 }
00062
00063
00064 memset(&_bridge, 0, sizeof(_bridge));
00065
00066 memcpy(&_bridge, &_orig_bridge, sizeof(_orig_bridge));
00067 }
00068
00072 int CalcBridgeLenCostFactor(int x)
00073 {
00074 int n;
00075 int r;
00076
00077 if (x < 2) return x;
00078 x -= 2;
00079 for (n = 0, r = 2;; n++) {
00080 if (x <= n) return r + x * n;
00081 r += n * n;
00082 x -= n;
00083 }
00084 }
00085
00086 Foundation GetBridgeFoundation(Slope tileh, Axis axis)
00087 {
00088 if ((tileh == SLOPE_FLAT) ||
00089 (((tileh == SLOPE_NE) || (tileh == SLOPE_SW)) && (axis == AXIS_X)) ||
00090 (((tileh == SLOPE_NW) || (tileh == SLOPE_SE)) && (axis == AXIS_Y))) return FOUNDATION_NONE;
00091
00092 return (HasSlopeHighestCorner(tileh) ? InclinedFoundation(axis) : FlatteningFoundation(tileh));
00093 }
00094
00102 bool HasBridgeFlatRamp(Slope tileh, Axis axis)
00103 {
00104 ApplyFoundationToSlope(GetBridgeFoundation(tileh, axis), &tileh);
00105
00106 return (tileh != SLOPE_FLAT);
00107 }
00108
00109 static inline const PalSpriteID *GetBridgeSpriteTable(int index, BridgePieces table)
00110 {
00111 const BridgeSpec *bridge = GetBridgeSpec(index);
00112 assert(table < BRIDGE_PIECE_INVALID);
00113 if (bridge->sprite_table == NULL || bridge->sprite_table[table] == NULL) {
00114 return _bridge_sprite_table[index][table];
00115 } else {
00116 return bridge->sprite_table[table];
00117 }
00118 }
00119
00120
00129 static CommandCost CheckBridgeSlopeNorth(Axis axis, Slope *tileh, uint *z)
00130 {
00131 Foundation f = GetBridgeFoundation(*tileh, axis);
00132 *z += ApplyFoundationToSlope(f, tileh);
00133
00134 Slope valid_inclined = (axis == AXIS_X ? SLOPE_NE : SLOPE_NW);
00135 if ((*tileh != SLOPE_FLAT) && (*tileh != valid_inclined)) return CMD_ERROR;
00136
00137 if (f == FOUNDATION_NONE) return CommandCost();
00138
00139 return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
00140 }
00141
00150 static CommandCost CheckBridgeSlopeSouth(Axis axis, Slope *tileh, uint *z)
00151 {
00152 Foundation f = GetBridgeFoundation(*tileh, axis);
00153 *z += ApplyFoundationToSlope(f, tileh);
00154
00155 Slope valid_inclined = (axis == AXIS_X ? SLOPE_SW : SLOPE_SE);
00156 if ((*tileh != SLOPE_FLAT) && (*tileh != valid_inclined)) return CMD_ERROR;
00157
00158 if (f == FOUNDATION_NONE) return CommandCost();
00159
00160 return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
00161 }
00162
00163 bool CheckBridge_Stuff(BridgeType bridge_type, uint bridge_len, DoCommandFlag flags)
00164 {
00165 if (flags & DC_QUERY_COST) {
00166 return bridge_len <= (_settings_game.construction.longbridges ? 100U : 16U);
00167 }
00168
00169 if (bridge_type >= MAX_BRIDGES) return false;
00170
00171 const BridgeSpec *b = GetBridgeSpec(bridge_type);
00172 if (b->avail_year > _cur_year) return false;
00173
00174 uint max = b->max_length;
00175 if (max >= 16 && _settings_game.construction.longbridges) max = 100;
00176
00177 return b->min_length <= bridge_len && bridge_len <= max;
00178 }
00179
00191 CommandCost CmdBuildBridge(TileIndex end_tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00192 {
00193 RailType railtype = INVALID_RAILTYPE;
00194 RoadTypes roadtypes = ROADTYPES_NONE;
00195 CommandCost cost(EXPENSES_CONSTRUCTION);
00196 Owner owner;
00197
00198
00199 BridgeType bridge_type = GB(p2, 0, 8);
00200
00201 if (p1 >= MapSize()) return CMD_ERROR;
00202
00203 TransportType transport_type = (TransportType)GB(p2, 15, 2);
00204
00205
00206 switch (transport_type) {
00207 case TRANSPORT_ROAD:
00208 roadtypes = (RoadTypes)GB(p2, 8, 2);
00209 if (!AreValidRoadTypes(roadtypes) || !HasRoadTypesAvail(_current_company, roadtypes)) return CMD_ERROR;
00210 break;
00211
00212 case TRANSPORT_RAIL:
00213 railtype = (RailType)GB(p2, 8, 7);
00214 if (!ValParamRailtype(railtype)) return CMD_ERROR;
00215 break;
00216
00217 case TRANSPORT_WATER:
00218 break;
00219
00220 default:
00221
00222 return CMD_ERROR;
00223 }
00224 TileIndex tile_start = p1;
00225 TileIndex tile_end = end_tile;
00226
00227 if (tile_start == tile_end) {
00228 return_cmd_error(STR_ERROR_CAN_T_START_AND_END_ON);
00229 }
00230
00231 Axis direction;
00232 if (TileX(tile_start) == TileX(tile_end)) {
00233 direction = AXIS_Y;
00234 } else if (TileY(tile_start) == TileY(tile_end)) {
00235 direction = AXIS_X;
00236 } else {
00237 return_cmd_error(STR_ERROR_START_AND_END_MUST_BE_IN);
00238 }
00239
00240 if (tile_end < tile_start) Swap(tile_start, tile_end);
00241
00242 uint bridge_len = GetTunnelBridgeLength(tile_start, tile_end);
00243 if (transport_type != TRANSPORT_WATER) {
00244
00245 if (!CheckBridge_Stuff(bridge_type, bridge_len, flags)) return_cmd_error(STR_ERROR_CAN_T_BUILD_BRIDGE_HERE);
00246 } else {
00247 if (bridge_len > (_settings_game.construction.longbridges ? 100U : 16U)) return_cmd_error(STR_ERROR_CAN_T_BUILD_BRIDGE_HERE);
00248 }
00249
00250
00251 if (IsWaterTile(tile_start) || IsWaterTile(tile_end)) {
00252 return_cmd_error(STR_ERROR_ENDS_OF_BRIDGE_MUST_BOTH);
00253 }
00254
00255 uint z_start;
00256 uint z_end;
00257 Slope tileh_start = GetTileSlope(tile_start, &z_start);
00258 Slope tileh_end = GetTileSlope(tile_end, &z_end);
00259
00260 CommandCost terraform_cost_north = CheckBridgeSlopeNorth(direction, &tileh_start, &z_start);
00261 CommandCost terraform_cost_south = CheckBridgeSlopeSouth(direction, &tileh_end, &z_end);
00262
00263 if (z_start != z_end) return_cmd_error(STR_ERROR_BRIDGEHEADS_NOT_SAME_HEIGHT);
00264
00265 if (IsBridgeTile(tile_start) && IsBridgeTile(tile_end) &&
00266 GetOtherBridgeEnd(tile_start) == tile_end &&
00267 GetTunnelBridgeTransportType(tile_start) == transport_type) {
00268
00269
00270
00271 if (transport_type == TRANSPORT_RAIL && GetRailType(tile_start) != railtype) {
00272 return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00273 }
00274
00275
00276 if (!(flags & DC_QUERY_COST) && IsTileOwner(tile_start, OWNER_TOWN) &&
00277 GetBridgeSpec(bridge_type)->speed < GetBridgeSpec(GetBridgeType(tile_start))->speed) {
00278 Town *t = ClosestTownFromTile(tile_start, UINT_MAX);
00279
00280 if (t == NULL) {
00281 return CMD_ERROR;
00282 } else {
00283 SetDParam(0, t->index);
00284 return_cmd_error(STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS);
00285 }
00286 }
00287
00288
00289 if (!(flags & DC_QUERY_COST) && bridge_type == GetBridgeType(tile_start)) {
00290 return_cmd_error(STR_ERROR_ALREADY_BUILT);
00291 }
00292
00293
00294 if (!IsTileOwner(tile_start, _current_company) && !IsTileOwner(tile_start, OWNER_TOWN)) {
00295 return_cmd_error(STR_ERROR_AREA_IS_OWNED_BY_ANOTHER);
00296 }
00297
00298 cost.AddCost((bridge_len + 1) * _price[PR_CLEAR_BRIDGE]);
00299 owner = GetTileOwner(tile_start);
00300
00301
00302 roadtypes |= GetRoadTypes(tile_start);
00303 } else {
00304
00305
00306 bool allow_on_slopes = (_settings_game.construction.build_on_slopes && transport_type != TRANSPORT_WATER);
00307
00308
00309 CommandCost ret = DoCommand(tile_start, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00310 if (ret.Failed()) return ret;
00311 cost = ret;
00312
00313 if (terraform_cost_north.Failed() || (terraform_cost_north.GetCost() != 0 && !allow_on_slopes))
00314 return_cmd_error(STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION);
00315 cost.AddCost(terraform_cost_north);
00316
00317
00318 ret = DoCommand(tile_end, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00319 if (ret.Failed()) return ret;
00320 cost.AddCost(ret);
00321
00322
00323 if (terraform_cost_south.Failed() || (terraform_cost_south.GetCost() != 0 && !allow_on_slopes))
00324 return_cmd_error(STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION);
00325 cost.AddCost(terraform_cost_south);
00326
00327 if (transport_type == TRANSPORT_WATER && (tileh_start == SLOPE_FLAT || tileh_end == SLOPE_FLAT)) return_cmd_error(STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION);
00328
00329 const TileIndex heads[] = {tile_start, tile_end};
00330 for (int i = 0; i < 2; i++) {
00331 if (MayHaveBridgeAbove(heads[i])) {
00332 if (IsBridgeAbove(heads[i])) {
00333 TileIndex north_head = GetNorthernBridgeEnd(heads[i]);
00334
00335 if (direction == GetBridgeAxis(heads[i])) return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00336
00337 if (z_start + TILE_HEIGHT == GetBridgeHeight(north_head)) {
00338 return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00339 }
00340 }
00341 }
00342 }
00343
00344 TileIndexDiff delta = (direction == AXIS_X ? TileDiffXY(1, 0) : TileDiffXY(0, 1));
00345 for (TileIndex tile = tile_start + delta; tile != tile_end; tile += delta) {
00346 if (GetTileMaxZ(tile) > z_start) return_cmd_error(STR_ERROR_BRIDGE_TOO_LOW_FOR_TERRAIN);
00347
00348 if (MayHaveBridgeAbove(tile) && IsBridgeAbove(tile)) {
00349
00350 return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00351 }
00352
00353 switch (GetTileType(tile)) {
00354 case MP_WATER:
00355 if (!IsWater(tile) && !IsCoast(tile)) goto not_valid_below;
00356 break;
00357
00358 case MP_RAILWAY:
00359 if (!IsPlainRail(tile)) goto not_valid_below;
00360 break;
00361
00362 case MP_ROAD:
00363 if (IsRoadDepot(tile)) goto not_valid_below;
00364 break;
00365
00366 case MP_TUNNELBRIDGE:
00367 if (IsTunnel(tile)) break;
00368 if (direction == DiagDirToAxis(GetTunnelBridgeDirection(tile))) goto not_valid_below;
00369 if (z_start < GetBridgeHeight(tile)) goto not_valid_below;
00370 break;
00371
00372 case MP_UNMOVABLE:
00373 if (!IsOwnedLand(tile)) goto not_valid_below;
00374 break;
00375
00376 case MP_CLEAR:
00377 break;
00378
00379 default:
00380 not_valid_below:;
00381
00382 ret = DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00383 if (ret.Failed()) return ret;
00384 cost.AddCost(ret);
00385 break;
00386 }
00387
00388 if (flags & DC_EXEC) {
00389
00390
00391
00392 SetBridgeMiddle(tile, direction);
00393 }
00394 }
00395
00396 owner = _current_company;
00397 }
00398
00399
00400 if (flags & DC_EXEC) {
00401 DiagDirection dir = AxisToDiagDir(direction);
00402
00403 switch (transport_type) {
00404 case TRANSPORT_RAIL:
00405 MakeRailBridgeRamp(tile_start, owner, bridge_type, dir, railtype);
00406 MakeRailBridgeRamp(tile_end, owner, bridge_type, ReverseDiagDir(dir), railtype);
00407 break;
00408
00409 case TRANSPORT_ROAD:
00410 MakeRoadBridgeRamp(tile_start, owner, bridge_type, dir, roadtypes);
00411 MakeRoadBridgeRamp(tile_end, owner, bridge_type, ReverseDiagDir(dir), roadtypes);
00412 break;
00413
00414 case TRANSPORT_WATER:
00415 MakeAqueductBridgeRamp(tile_start, owner, dir);
00416 MakeAqueductBridgeRamp(tile_end, owner, ReverseDiagDir(dir));
00417 break;
00418
00419 default:
00420 NOT_REACHED();
00421 }
00422
00423
00424 TileIndexDiff delta = (direction == AXIS_X ? TileDiffXY(1, 0) : TileDiffXY(0, 1));
00425 for (TileIndex tile = tile_start; tile <= tile_end; tile += delta) {
00426 MarkTileDirtyByTile(tile);
00427 }
00428 }
00429
00430 if ((flags & DC_EXEC) && transport_type == TRANSPORT_RAIL) {
00431 Track track = AxisToTrack(direction);
00432 AddSideToSignalBuffer(tile_start, INVALID_DIAGDIR, _current_company);
00433 YapfNotifyTrackLayoutChange(tile_start, track);
00434 }
00435
00436
00437
00438
00439
00440 Company *c = Company::GetIfValid(_current_company);
00441 if (!(flags & DC_QUERY_COST) || (c != NULL && c->is_ai)) {
00442 bridge_len += 2;
00443
00444 if (c != NULL) bridge_len = CalcBridgeLenCostFactor(bridge_len);
00445
00446 cost.AddCost((int64)bridge_len * _price[PR_BUILD_BRIDGE] * GetBridgeSpec(bridge_type)->price >> 8);
00447
00448
00449 if (transport_type == TRANSPORT_WATER) cost.AddCost((int64)bridge_len * _price[PR_CLEAR_WATER]);
00450 }
00451
00452 return cost;
00453 }
00454
00455
00464 CommandCost CmdBuildTunnel(TileIndex start_tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00465 {
00466 TransportType transport_type = (TransportType)GB(p1, 9, 1);
00467 CommandCost cost(EXPENSES_CONSTRUCTION);
00468
00469 _build_tunnel_endtile = 0;
00470 if (transport_type == TRANSPORT_RAIL) {
00471 if (!ValParamRailtype((RailType)p1)) return CMD_ERROR;
00472 } else {
00473 const RoadTypes rts = (RoadTypes)GB(p1, 0, 2);
00474 if (!AreValidRoadTypes(rts) || !HasRoadTypesAvail(_current_company, rts)) return CMD_ERROR;
00475 }
00476
00477 uint start_z;
00478 uint end_z;
00479 Slope start_tileh = GetTileSlope(start_tile, &start_z);
00480 DiagDirection direction = GetInclinedSlopeDirection(start_tileh);
00481 if (direction == INVALID_DIAGDIR) return_cmd_error(STR_ERROR_SITE_UNSUITABLE_FOR_TUNNEL);
00482
00483 if (IsWaterTile(start_tile)) return_cmd_error(STR_ERROR_CAN_T_BUILD_ON_WATER);
00484
00485 CommandCost ret = DoCommand(start_tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00486 if (ret.Failed()) return ret;
00487
00488
00489
00490
00491
00492
00493 TileIndexDiff delta = TileOffsByDiagDir(direction);
00494 DiagDirection tunnel_in_way_dir;
00495 if (DiagDirToAxis(direction) == AXIS_Y) {
00496 tunnel_in_way_dir = (TileX(start_tile) < (MapMaxX() / 2)) ? DIAGDIR_SW : DIAGDIR_NE;
00497 } else {
00498 tunnel_in_way_dir = (TileY(start_tile) < (MapMaxX() / 2)) ? DIAGDIR_SE : DIAGDIR_NW;
00499 }
00500
00501 TileIndex end_tile = start_tile;
00502
00503
00504 int tiles_coef = 3;
00505
00506 int tiles = 0;
00507
00508 int tiles_bump = 25;
00509
00510 Slope end_tileh;
00511 for (;;) {
00512 end_tile += delta;
00513 if (!IsValidTile(end_tile)) return_cmd_error(STR_ERROR_TUNNEL_THROUGH_MAP_BORDER);
00514 end_tileh = GetTileSlope(end_tile, &end_z);
00515
00516 if (start_z == end_z) break;
00517
00518 if (!_cheats.crossing_tunnels.value && IsTunnelInWayDir(end_tile, start_z, tunnel_in_way_dir)) {
00519 return_cmd_error(STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY);
00520 }
00521
00522 tiles++;
00523 if (tiles == tiles_bump) {
00524 tiles_coef++;
00525 tiles_bump *= 2;
00526 }
00527
00528 cost.AddCost(_price[PR_BUILD_TUNNEL]);
00529 cost.AddCost(cost.GetCost() >> tiles_coef);
00530 }
00531
00532
00533 cost.AddCost(_price[PR_BUILD_TUNNEL]);
00534 cost.AddCost(ret);
00535
00536
00537 _build_tunnel_endtile = end_tile;
00538
00539 if (IsWaterTile(end_tile)) return_cmd_error(STR_ERROR_CAN_T_BUILD_ON_WATER);
00540
00541
00542 if (end_tileh != ComplementSlope(start_tileh)) {
00543
00544
00545
00546
00547 ret = DoCommand(end_tile, 0, 0, DC_AUTO, CMD_LANDSCAPE_CLEAR);
00548 if (ret.Failed()) return_cmd_error(STR_ERROR_UNABLE_TO_EXCAVATE_LAND);
00549
00550 ret = DoCommand(end_tile, end_tileh & start_tileh, 0, flags, CMD_TERRAFORM_LAND);
00551 if (ret.Failed()) return_cmd_error(STR_ERROR_UNABLE_TO_EXCAVATE_LAND);
00552 } else {
00553 ret = DoCommand(end_tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00554 if (ret.Failed()) return ret;
00555 }
00556 cost.AddCost(_price[PR_BUILD_TUNNEL]);
00557 cost.AddCost(ret);
00558
00559 if (flags & DC_EXEC) {
00560 if (transport_type == TRANSPORT_RAIL) {
00561 MakeRailTunnel(start_tile, _current_company, direction, (RailType)GB(p1, 0, 4));
00562 MakeRailTunnel(end_tile, _current_company, ReverseDiagDir(direction), (RailType)GB(p1, 0, 4));
00563 AddSideToSignalBuffer(start_tile, INVALID_DIAGDIR, _current_company);
00564 YapfNotifyTrackLayoutChange(start_tile, DiagDirToDiagTrack(direction));
00565 } else {
00566 MakeRoadTunnel(start_tile, _current_company, direction, (RoadTypes)GB(p1, 0, 2));
00567 MakeRoadTunnel(end_tile, _current_company, ReverseDiagDir(direction), (RoadTypes)GB(p1, 0, 2));
00568 }
00569 }
00570
00571 return cost;
00572 }
00573
00574
00575 static inline bool CheckAllowRemoveTunnelBridge(TileIndex tile)
00576 {
00577
00578 if (_current_company == OWNER_WATER || _game_mode == GM_EDITOR) return true;
00579
00580 switch (GetTunnelBridgeTransportType(tile)) {
00581 case TRANSPORT_ROAD: {
00582 RoadTypes rts = GetRoadTypes(tile);
00583 Owner road_owner = _current_company;
00584 Owner tram_owner = _current_company;
00585
00586 if (HasBit(rts, ROADTYPE_ROAD)) road_owner = GetRoadOwner(tile, ROADTYPE_ROAD);
00587 if (HasBit(rts, ROADTYPE_TRAM)) tram_owner = GetRoadOwner(tile, ROADTYPE_TRAM);
00588
00589
00590 if (road_owner == OWNER_TOWN && !(_settings_game.construction.extra_dynamite || _cheats.magic_bulldozer.value)) return CheckTileOwnership(tile);
00591 if (road_owner == OWNER_NONE || road_owner == OWNER_TOWN) road_owner = _current_company;
00592 if (tram_owner == OWNER_NONE) tram_owner = _current_company;
00593
00594 return CheckOwnership(road_owner, tile) && CheckOwnership(tram_owner, tile);
00595 }
00596
00597 case TRANSPORT_RAIL:
00598 case TRANSPORT_WATER:
00599 return CheckOwnership(GetTileOwner(tile));
00600
00601 default: NOT_REACHED();
00602 }
00603 }
00604
00605 static CommandCost DoClearTunnel(TileIndex tile, DoCommandFlag flags)
00606 {
00607 Town *t = NULL;
00608 TileIndex endtile;
00609
00610 if (!CheckAllowRemoveTunnelBridge(tile)) return CMD_ERROR;
00611
00612 endtile = GetOtherTunnelEnd(tile);
00613
00614 if (HasVehicleOnTunnelBridge(tile, endtile)) return CMD_ERROR;
00615
00616 _build_tunnel_endtile = endtile;
00617
00618 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00619 t = ClosestTownFromTile(tile, UINT_MAX);
00620
00621
00622
00623 if (!CheckforTownRating(flags, t, TUNNELBRIDGE_REMOVE)) {
00624 SetDParam(0, t->index);
00625 return_cmd_error(STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS);
00626 }
00627 }
00628
00629
00630
00631 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00632 ChangeTownRating(t, RATING_TUNNEL_BRIDGE_DOWN_STEP, RATING_TUNNEL_BRIDGE_MINIMUM, flags);
00633 }
00634
00635 if (flags & DC_EXEC) {
00636 if (GetTunnelBridgeTransportType(tile) == TRANSPORT_RAIL) {
00637
00638 DiagDirection dir = GetTunnelBridgeDirection(tile);
00639 Track track = DiagDirToDiagTrack(dir);
00640 Owner owner = GetTileOwner(tile);
00641
00642 Train *v = NULL;
00643 if (HasTunnelBridgeReservation(tile)) {
00644 v = GetTrainForReservation(tile, track);
00645 if (v != NULL) FreeTrainTrackReservation(v);
00646 }
00647
00648 DoClearSquare(tile);
00649 DoClearSquare(endtile);
00650
00651
00652 AddSideToSignalBuffer(tile, ReverseDiagDir(dir), owner);
00653 AddSideToSignalBuffer(endtile, dir, owner);
00654
00655 YapfNotifyTrackLayoutChange(tile, track);
00656 YapfNotifyTrackLayoutChange(endtile, track);
00657
00658 if (v != NULL) TryPathReserve(v);
00659 } else {
00660 DoClearSquare(tile);
00661 DoClearSquare(endtile);
00662 }
00663 }
00664 return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_CLEAR_TUNNEL] * (GetTunnelBridgeLength(tile, endtile) + 2));
00665 }
00666
00667
00668 static CommandCost DoClearBridge(TileIndex tile, DoCommandFlag flags)
00669 {
00670 DiagDirection direction;
00671 TileIndexDiff delta;
00672 TileIndex endtile;
00673 Town *t = NULL;
00674
00675 if (!CheckAllowRemoveTunnelBridge(tile)) return CMD_ERROR;
00676
00677 endtile = GetOtherBridgeEnd(tile);
00678
00679 if (HasVehicleOnTunnelBridge(tile, endtile)) return CMD_ERROR;
00680
00681 direction = GetTunnelBridgeDirection(tile);
00682 delta = TileOffsByDiagDir(direction);
00683
00684 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00685 t = ClosestTownFromTile(tile, UINT_MAX);
00686
00687
00688
00689 if (!CheckforTownRating(flags, t, TUNNELBRIDGE_REMOVE)) {
00690 SetDParam(0, t->index);
00691 return_cmd_error(STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS);
00692 }
00693 }
00694
00695
00696
00697 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00698 ChangeTownRating(t, RATING_TUNNEL_BRIDGE_DOWN_STEP, RATING_TUNNEL_BRIDGE_MINIMUM, flags);
00699 }
00700
00701 if (flags & DC_EXEC) {
00702
00703 bool rail = GetTunnelBridgeTransportType(tile) == TRANSPORT_RAIL;
00704 Owner owner = GetTileOwner(tile);
00705 uint height = GetBridgeHeight(tile);
00706 Train *v = NULL;
00707
00708 if (rail && HasTunnelBridgeReservation(tile)) {
00709 v = GetTrainForReservation(tile, DiagDirToDiagTrack(direction));
00710 if (v != NULL) FreeTrainTrackReservation(v);
00711 }
00712
00713 DoClearSquare(tile);
00714 DoClearSquare(endtile);
00715 for (TileIndex c = tile + delta; c != endtile; c += delta) {
00716
00717 if (IsNormalRoadTile(c) && GetRoadside(c) == ROADSIDE_TREES) {
00718 uint minz = GetTileMaxZ(c) + 3 * TILE_HEIGHT;
00719 if (height < minz) SetRoadside(c, ROADSIDE_PAVED);
00720 }
00721 ClearBridgeMiddle(c);
00722 MarkTileDirtyByTile(c);
00723 }
00724
00725 if (rail) {
00726
00727 AddSideToSignalBuffer(tile, ReverseDiagDir(direction), owner);
00728 AddSideToSignalBuffer(endtile, direction, owner);
00729
00730 Track track = DiagDirToDiagTrack(direction);
00731 YapfNotifyTrackLayoutChange(tile, track);
00732 YapfNotifyTrackLayoutChange(endtile, track);
00733
00734 if (v != NULL) TryPathReserve(v, true);
00735 }
00736 }
00737
00738 return CommandCost(EXPENSES_CONSTRUCTION, (GetTunnelBridgeLength(tile, endtile) + 2) * _price[PR_CLEAR_BRIDGE]);
00739 }
00740
00741 static CommandCost ClearTile_TunnelBridge(TileIndex tile, DoCommandFlag flags)
00742 {
00743 if (IsTunnel(tile)) {
00744 if (flags & DC_AUTO) return_cmd_error(STR_ERROR_MUST_DEMOLISH_TUNNEL_FIRST);
00745 return DoClearTunnel(tile, flags);
00746 } else {
00747 if (flags & DC_AUTO) return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00748 return DoClearBridge(tile, flags);
00749 }
00750
00751 return CMD_ERROR;
00752 }
00753
00765 static void DrawBridgePillars(const PalSpriteID *psid, const TileInfo *ti, Axis axis, bool drawfarpillar, int x, int y, int z_bridge)
00766 {
00767
00768 if (IsInvisibilitySet(TO_BRIDGES)) return;
00769
00770 SpriteID image = psid->sprite;
00771
00772 if (image != 0) {
00773
00774
00775
00776
00777
00778
00779
00780
00781
00782 bool side = HasBit(image, 0);
00783
00784
00785 DiagDirection dir = AxisToDiagDir(axis);
00786 if (side != (axis == AXIS_Y)) dir = ReverseDiagDir(dir);
00787
00788
00789 int front_height = ti->z;
00790 int back_height = ti->z;
00791 GetSlopeZOnEdge(ti->tileh, dir, &front_height, &back_height);
00792
00793
00794 int w = (axis == AXIS_X ? 16 : 2);
00795 int h = (axis == AXIS_X ? 2 : 16);
00796
00797 int x_back = x - (axis == AXIS_X ? 0 : 9);
00798 int y_back = y - (axis == AXIS_X ? 9 : 0);
00799
00800 for (int cur_z = z_bridge; cur_z >= front_height || cur_z >= back_height; cur_z -= TILE_HEIGHT) {
00801
00802 if (cur_z >= front_height) {
00803 AddSortableSpriteToDraw(image, psid->pal, x, y, w, h, BB_HEIGHT_UNDER_BRIDGE - 5, cur_z, IsTransparencySet(TO_BRIDGES), 0, 0, -5);
00804 }
00805
00806
00807 if (drawfarpillar && cur_z >= back_height && cur_z < z_bridge - TILE_HEIGHT) {
00808 AddSortableSpriteToDraw(image, psid->pal, x_back, y_back, w, h, BB_HEIGHT_UNDER_BRIDGE - 5, cur_z, IsTransparencySet(TO_BRIDGES), 0, 0, -5);
00809 }
00810 }
00811 }
00812 }
00813
00823 static void DrawBridgeTramBits(int x, int y, byte z, int offset, bool overlay, bool head)
00824 {
00825 static const SpriteID tram_offsets[2][6] = { { 107, 108, 109, 110, 111, 112 }, { 4, 5, 15, 16, 17, 18 } };
00826 static const SpriteID back_offsets[6] = { 95, 96, 99, 102, 100, 101 };
00827 static const SpriteID front_offsets[6] = { 97, 98, 103, 106, 104, 105 };
00828
00829 static const uint size_x[6] = { 1, 16, 16, 1, 16, 1 };
00830 static const uint size_y[6] = { 16, 1, 1, 16, 1, 16 };
00831 static const uint front_bb_offset_x[6] = { 15, 0, 0, 15, 0, 15 };
00832 static const uint front_bb_offset_y[6] = { 0, 15, 15, 0, 15, 0 };
00833
00834
00835
00836 if (head || !IsInvisibilitySet(TO_BRIDGES)) {
00837 AddSortableSpriteToDraw(SPR_TRAMWAY_BASE + tram_offsets[overlay][offset], PAL_NONE,
00838 x, y, size_x[offset], size_y[offset], 0x28, z,
00839 !head && IsTransparencySet(TO_BRIDGES));
00840 }
00841
00842
00843 if (!IsInvisibilitySet(TO_CATENARY)) {
00844 AddSortableSpriteToDraw(SPR_TRAMWAY_BASE + back_offsets[offset], PAL_NONE,
00845 x, y, size_x[offset], size_y[offset], 0x28, z,
00846 IsTransparencySet(TO_CATENARY));
00847 }
00848
00849
00850 EndSpriteCombine();
00851 StartSpriteCombine();
00852
00853
00854 if (!IsInvisibilitySet(TO_CATENARY)) {
00855 AddSortableSpriteToDraw(SPR_TRAMWAY_BASE + front_offsets[offset], PAL_NONE,
00856 x, y, size_x[offset] + front_bb_offset_x[offset], size_y[offset] + front_bb_offset_y[offset], 0x28, z,
00857 IsTransparencySet(TO_CATENARY), front_bb_offset_x[offset], front_bb_offset_y[offset]);
00858 }
00859 }
00860
00874 static void DrawTile_TunnelBridge(TileInfo *ti)
00875 {
00876 SpriteID image;
00877 TransportType transport_type = GetTunnelBridgeTransportType(ti->tile);
00878 DiagDirection tunnelbridge_direction = GetTunnelBridgeDirection(ti->tile);
00879
00880 if (IsTunnel(ti->tile)) {
00881
00882
00883
00884
00885
00886
00887
00888
00889
00890 static const int _tunnel_BB[4][12] = {
00891
00892
00893 { 1, 0, -15, -14, 0, 15, 16, 1, 0, 1, 16, 15 },
00894 { 0, 1, -14, -15, 15, 0, 1, 16, 1, 0, 15, 16 },
00895 { 1, 0, -15, -14, 0, 15, 16, 1, 0, 1, 16, 15 },
00896 { 0, 1, -14, -15, 15, 0, 1, 16, 1, 0, 15, 16 },
00897 };
00898 const int *BB_data = _tunnel_BB[tunnelbridge_direction];
00899
00900 bool catenary = false;
00901
00902 if (transport_type == TRANSPORT_RAIL) {
00903 image = GetRailTypeInfo(GetRailType(ti->tile))->base_sprites.tunnel;
00904 } else {
00905 image = SPR_TUNNEL_ENTRY_REAR_ROAD;
00906 }
00907
00908 if (HasTunnelBridgeSnowOrDesert(ti->tile)) image += 32;
00909
00910 image += tunnelbridge_direction * 2;
00911 DrawGroundSprite(image, PAL_NONE);
00912
00913
00914 if (_game_mode != GM_MENU && _settings_client.gui.show_track_reservation && (transport_type == TRANSPORT_RAIL && HasTunnelBridgeReservation(ti->tile))) {
00915 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(ti->tile));
00916 DrawGroundSprite(DiagDirToAxis(tunnelbridge_direction) == AXIS_X ? rti->base_sprites.single_x : rti->base_sprites.single_y, PALETTE_CRASH);
00917 }
00918
00919 if (transport_type == TRANSPORT_ROAD) {
00920 RoadTypes rts = GetRoadTypes(ti->tile);
00921
00922 if (HasBit(rts, ROADTYPE_TRAM)) {
00923 static const SpriteID tunnel_sprites[2][4] = { { 28, 78, 79, 27 }, { 5, 76, 77, 4 } };
00924
00925 DrawGroundSprite(SPR_TRAMWAY_BASE + tunnel_sprites[rts - ROADTYPES_TRAM][tunnelbridge_direction], PAL_NONE);
00926
00927
00928 if (!IsInvisibilitySet(TO_CATENARY)) {
00929 catenary = true;
00930 StartSpriteCombine();
00931 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);
00932 }
00933 }
00934 } else {
00935 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(ti->tile));
00936 if (rti->UsesOverlay()) {
00937 SpriteID surface = GetCustomRailSprite(rti, ti->tile, RTSG_TUNNEL);
00938 if (surface != 0) DrawGroundSprite(surface + tunnelbridge_direction, PAL_NONE);
00939 }
00940
00941 if (HasCatenaryDrawn(GetRailType(ti->tile))) {
00942
00943 DrawCatenary(ti);
00944
00945 catenary = true;
00946 StartSpriteCombine();
00947
00948 DrawCatenaryOnTunnel(ti);
00949 }
00950 }
00951
00952 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);
00953
00954 if (catenary) EndSpriteCombine();
00955
00956
00957 AddSortableSpriteToDraw(SPR_EMPTY_BOUNDING_BOX, PAL_NONE, ti->x, ti->y, BB_data[6], BB_data[7], TILE_HEIGHT, ti->z);
00958 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);
00959
00960 DrawBridgeMiddle(ti);
00961 } else {
00962 const PalSpriteID *psid;
00963 int base_offset;
00964 bool ice = HasTunnelBridgeSnowOrDesert(ti->tile);
00965
00966 if (transport_type == TRANSPORT_RAIL) {
00967 base_offset = GetRailTypeInfo(GetRailType(ti->tile))->bridge_offset;
00968 assert(base_offset != 8);
00969 } else {
00970 base_offset = 8;
00971 }
00972
00973
00974 assert( (base_offset & 0x07) == 0x00);
00975
00976 DrawFoundation(ti, GetBridgeFoundation(ti->tileh, DiagDirToAxis(tunnelbridge_direction)));
00977
00978
00979 base_offset += (6 - tunnelbridge_direction) % 4;
00980
00981 if (ti->tileh == SLOPE_FLAT) base_offset += 4;
00982
00983
00984 if (transport_type != TRANSPORT_WATER) {
00985 psid = &GetBridgeSpriteTable(GetBridgeType(ti->tile), BRIDGE_PIECE_HEAD)[base_offset];
00986 } else {
00987 psid = _aqueduct_sprites + base_offset;
00988 }
00989
00990 if (!ice) {
00991 DrawClearLandTile(ti, 3);
00992 } else {
00993 DrawGroundSprite(SPR_FLAT_SNOW_DESERT_TILE + _tileh_to_sprite[ti->tileh], PAL_NONE);
00994 }
00995
00996
00997
00998
00999 if (transport_type == TRANSPORT_ROAD || transport_type == TRANSPORT_RAIL) StartSpriteCombine();
01000
01001
01002
01003
01004
01005 AddSortableSpriteToDraw(psid->sprite, psid->pal, ti->x, ti->y, 16, 16, ti->tileh == SLOPE_FLAT ? 0 : 8, ti->z);
01006
01007 if (transport_type == TRANSPORT_ROAD) {
01008 RoadTypes rts = GetRoadTypes(ti->tile);
01009
01010 if (HasBit(rts, ROADTYPE_TRAM)) {
01011 uint offset = tunnelbridge_direction;
01012 uint z = ti->z;
01013 if (ti->tileh != SLOPE_FLAT) {
01014 offset = (offset + 1) & 1;
01015 z += TILE_HEIGHT;
01016 } else {
01017 offset += 2;
01018 }
01019
01020 DrawBridgeTramBits(ti->x, ti->y, z, offset, HasBit(rts, ROADTYPE_ROAD), true);
01021 }
01022 EndSpriteCombine();
01023 } else if (transport_type == TRANSPORT_RAIL) {
01024 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(ti->tile));
01025 if (rti->UsesOverlay()) {
01026 SpriteID surface = GetCustomRailSprite(rti, ti->tile, RTSG_BRIDGE);
01027 if (surface != 0) {
01028 if (HasBridgeFlatRamp(ti->tileh, DiagDirToAxis(tunnelbridge_direction))) {
01029 AddSortableSpriteToDraw(surface + ((DiagDirToAxis(tunnelbridge_direction) == AXIS_X) ? RTBO_X : RTBO_Y), PAL_NONE, ti->x, ti->y, 16, 16, 0, ti->z + 8);
01030 } else {
01031 AddSortableSpriteToDraw(surface + RTBO_SLOPE + tunnelbridge_direction, PAL_NONE, ti->x, ti->y, 16, 16, 8, ti->z);
01032 }
01033 }
01034
01035
01036
01037 } else if (_game_mode != GM_MENU &&_settings_client.gui.show_track_reservation && HasTunnelBridgeReservation(ti->tile)) {
01038 if (HasBridgeFlatRamp(ti->tileh, DiagDirToAxis(tunnelbridge_direction))) {
01039 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);
01040 } else {
01041 AddSortableSpriteToDraw(rti->base_sprites.single_sloped + tunnelbridge_direction, PALETTE_CRASH, ti->x, ti->y, 16, 16, 8, ti->z);
01042 }
01043 }
01044 EndSpriteCombine();
01045 if (HasCatenaryDrawn(GetRailType(ti->tile))) {
01046 DrawCatenary(ti);
01047 }
01048 }
01049
01050 DrawBridgeMiddle(ti);
01051 }
01052 }
01053
01054
01072 static BridgePieces CalcBridgePiece(uint north, uint south)
01073 {
01074 if (north == 1) {
01075 return BRIDGE_PIECE_NORTH;
01076 } else if (south == 1) {
01077 return BRIDGE_PIECE_SOUTH;
01078 } else if (north < south) {
01079 return north & 1 ? BRIDGE_PIECE_INNER_SOUTH : BRIDGE_PIECE_INNER_NORTH;
01080 } else if (north > south) {
01081 return south & 1 ? BRIDGE_PIECE_INNER_NORTH : BRIDGE_PIECE_INNER_SOUTH;
01082 } else {
01083 return north & 1 ? BRIDGE_PIECE_MIDDLE_EVEN : BRIDGE_PIECE_MIDDLE_ODD;
01084 }
01085 }
01086
01087
01088 void DrawBridgeMiddle(const TileInfo *ti)
01089 {
01090
01091
01092
01093
01094
01095
01096
01097
01098
01099
01100
01101
01102
01103
01104
01105
01106
01107 static const int BRIDGE_Z_START = 3;
01108
01109 if (!IsBridgeAbove(ti->tile)) return;
01110
01111 TileIndex rampnorth = GetNorthernBridgeEnd(ti->tile);
01112 TileIndex rampsouth = GetSouthernBridgeEnd(ti->tile);
01113 TransportType transport_type = GetTunnelBridgeTransportType(rampsouth);
01114
01115 Axis axis = GetBridgeAxis(ti->tile);
01116 BridgePieces piece = CalcBridgePiece(
01117 GetTunnelBridgeLength(ti->tile, rampnorth) + 1,
01118 GetTunnelBridgeLength(ti->tile, rampsouth) + 1
01119 );
01120
01121 const PalSpriteID *psid;
01122 bool drawfarpillar;
01123 if (transport_type != TRANSPORT_WATER) {
01124 BridgeType type = GetBridgeType(rampsouth);
01125 drawfarpillar = !HasBit(GetBridgeSpec(type)->flags, 0);
01126
01127 uint base_offset;
01128 if (transport_type == TRANSPORT_RAIL) {
01129 base_offset = GetRailTypeInfo(GetRailType(rampsouth))->bridge_offset;
01130 } else {
01131 base_offset = 8;
01132 }
01133
01134 psid = base_offset + GetBridgeSpriteTable(type, piece);
01135 } else {
01136 drawfarpillar = true;
01137 psid = _aqueduct_sprites;
01138 }
01139
01140 if (axis != AXIS_X) psid += 4;
01141
01142 int x = ti->x;
01143 int y = ti->y;
01144 uint bridge_z = GetBridgeHeight(rampsouth);
01145 uint z = bridge_z - BRIDGE_Z_START;
01146
01147
01148 AddSortableSpriteToDraw(SPR_EMPTY_BOUNDING_BOX, PAL_NONE, x, y, 16, 16, 1, bridge_z - TILE_HEIGHT + BB_Z_SEPARATOR);
01149
01150
01151 if (transport_type == TRANSPORT_ROAD || transport_type == TRANSPORT_RAIL) StartSpriteCombine();
01152
01153
01154 if (!IsInvisibilitySet(TO_BRIDGES)) {
01155 if (axis == AXIS_X) {
01156 AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 16, 1, 0x28, z, IsTransparencySet(TO_BRIDGES), 0, 0, BRIDGE_Z_START);
01157 } else {
01158 AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 1, 16, 0x28, z, IsTransparencySet(TO_BRIDGES), 0, 0, BRIDGE_Z_START);
01159 }
01160 }
01161
01162 psid++;
01163
01164 if (transport_type == TRANSPORT_ROAD) {
01165 RoadTypes rts = GetRoadTypes(rampsouth);
01166
01167 if (HasBit(rts, ROADTYPE_TRAM)) {
01168
01169 DrawBridgeTramBits(x, y, bridge_z, axis ^ 1, HasBit(rts, ROADTYPE_ROAD), false);
01170 } else {
01171 EndSpriteCombine();
01172 StartSpriteCombine();
01173 }
01174 } else if (transport_type == TRANSPORT_RAIL) {
01175 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(rampsouth));
01176 if (rti->UsesOverlay()) {
01177 SpriteID surface = GetCustomRailSprite(rti, ti->tile, RTSG_BRIDGE);
01178 if (surface != 0) {
01179 AddSortableSpriteToDraw(surface + axis, PAL_NONE, x, y, 16, 16, 0, bridge_z, IsTransparencySet(TO_BRIDGES));
01180 }
01181 }
01182 EndSpriteCombine();
01183
01184 if (HasCatenaryDrawn(GetRailType(rampsouth))) {
01185 DrawCatenaryOnBridge(ti);
01186 }
01187 }
01188
01189
01190 if (!IsInvisibilitySet(TO_BRIDGES)) {
01191 if (axis == AXIS_X) {
01192 y += 12;
01193 if (psid->sprite & SPRITE_MASK) AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 16, 4, 0x28, z, IsTransparencySet(TO_BRIDGES), 0, 3, BRIDGE_Z_START);
01194 } else {
01195 x += 12;
01196 if (psid->sprite & SPRITE_MASK) AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 4, 16, 0x28, z, IsTransparencySet(TO_BRIDGES), 3, 0, BRIDGE_Z_START);
01197 }
01198 }
01199
01200
01201 if (transport_type == TRANSPORT_ROAD) EndSpriteCombine();
01202
01203
01204 if (IsInvisibilitySet(TO_BRIDGES)) return;
01205
01206 psid++;
01207 if (ti->z + 5 == z) {
01208
01209 if (psid->sprite != 0) {
01210 SpriteID image = psid->sprite;
01211 SpriteID pal = psid->pal;
01212 if (IsTransparencySet(TO_BRIDGES)) {
01213 SetBit(image, PALETTE_MODIFIER_TRANSPARENT);
01214 pal = PALETTE_TO_TRANSPARENT;
01215 }
01216
01217 DrawGroundSpriteAt(image, pal, x - ti->x, y - ti->y, z - ti->z);
01218 }
01219 } else if (_settings_client.gui.bridge_pillars) {
01220
01221 DrawBridgePillars(psid, ti, axis, drawfarpillar, x, y, z);
01222 }
01223 }
01224
01225
01226 static uint GetSlopeZ_TunnelBridge(TileIndex tile, uint x, uint y)
01227 {
01228 uint z;
01229 Slope tileh = GetTileSlope(tile, &z);
01230
01231 x &= 0xF;
01232 y &= 0xF;
01233
01234 if (IsTunnel(tile)) {
01235 uint pos = (DiagDirToAxis(GetTunnelBridgeDirection(tile)) == AXIS_X ? y : x);
01236
01237
01238 if (5 <= pos && pos <= 10) return z;
01239 } else {
01240 DiagDirection dir = GetTunnelBridgeDirection(tile);
01241 uint pos = (DiagDirToAxis(dir) == AXIS_X ? y : x);
01242
01243 z += ApplyFoundationToSlope(GetBridgeFoundation(tileh, DiagDirToAxis(dir)), &tileh);
01244
01245
01246 if (5 <= pos && pos <= 10) {
01247 uint delta;
01248
01249 if (tileh != SLOPE_FLAT) return z + TILE_HEIGHT;
01250
01251 switch (dir) {
01252 default: NOT_REACHED();
01253 case DIAGDIR_NE: delta = (TILE_SIZE - 1 - x) / 2; break;
01254 case DIAGDIR_SE: delta = y / 2; break;
01255 case DIAGDIR_SW: delta = x / 2; break;
01256 case DIAGDIR_NW: delta = (TILE_SIZE - 1 - y) / 2; break;
01257 }
01258 return z + 1 + delta;
01259 }
01260 }
01261
01262 return z + GetPartialZ(x, y, tileh);
01263 }
01264
01265 static Foundation GetFoundation_TunnelBridge(TileIndex tile, Slope tileh)
01266 {
01267 return IsTunnel(tile) ? FOUNDATION_NONE : GetBridgeFoundation(tileh, DiagDirToAxis(GetTunnelBridgeDirection(tile)));
01268 }
01269
01270 static void GetTileDesc_TunnelBridge(TileIndex tile, TileDesc *td)
01271 {
01272 TransportType tt = GetTunnelBridgeTransportType(tile);
01273
01274 if (IsTunnel(tile)) {
01275 td->str = (tt == TRANSPORT_RAIL) ? STR_LAI_TUNNEL_DESCRIPTION_RAILROAD : STR_LAI_TUNNEL_DESCRIPTION_ROAD;
01276 } else {
01277 td->str = (tt == TRANSPORT_WATER) ? STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT : GetBridgeSpec(GetBridgeType(tile))->transport_name[tt];
01278 }
01279 td->owner[0] = GetTileOwner(tile);
01280
01281 Owner road_owner = INVALID_OWNER;
01282 Owner tram_owner = INVALID_OWNER;
01283 RoadTypes rts = GetRoadTypes(tile);
01284 if (HasBit(rts, ROADTYPE_ROAD)) road_owner = GetRoadOwner(tile, ROADTYPE_ROAD);
01285 if (HasBit(rts, ROADTYPE_TRAM)) tram_owner = GetRoadOwner(tile, ROADTYPE_TRAM);
01286
01287
01288 if ((tram_owner != INVALID_OWNER && tram_owner != td->owner[0]) ||
01289 (road_owner != INVALID_OWNER && road_owner != td->owner[0])) {
01290 uint i = 1;
01291 if (road_owner != INVALID_OWNER) {
01292 td->owner_type[i] = STR_LAND_AREA_INFORMATION_ROAD_OWNER;
01293 td->owner[i] = road_owner;
01294 i++;
01295 }
01296 if (tram_owner != INVALID_OWNER) {
01297 td->owner_type[i] = STR_LAND_AREA_INFORMATION_TRAM_OWNER;
01298 td->owner[i] = tram_owner;
01299 }
01300 }
01301 }
01302
01303
01304 static void TileLoop_TunnelBridge(TileIndex tile)
01305 {
01306 bool snow_or_desert = HasTunnelBridgeSnowOrDesert(tile);
01307 switch (_settings_game.game_creation.landscape) {
01308 case LT_ARCTIC:
01309 if (snow_or_desert != (GetTileZ(tile) > GetSnowLine())) {
01310 SetTunnelBridgeSnowOrDesert(tile, !snow_or_desert);
01311 MarkTileDirtyByTile(tile);
01312 }
01313 break;
01314
01315 case LT_TROPIC:
01316 if (GetTropicZone(tile) == TROPICZONE_DESERT && !snow_or_desert) {
01317 SetTunnelBridgeSnowOrDesert(tile, true);
01318 MarkTileDirtyByTile(tile);
01319 }
01320 break;
01321
01322 default:
01323 break;
01324 }
01325 }
01326
01327 static TrackStatus GetTileTrackStatus_TunnelBridge(TileIndex tile, TransportType mode, uint sub_mode, DiagDirection side)
01328 {
01329 TransportType transport_type = GetTunnelBridgeTransportType(tile);
01330 if (transport_type != mode || (transport_type == TRANSPORT_ROAD && (GetRoadTypes(tile) & sub_mode) == 0)) return 0;
01331
01332 DiagDirection dir = GetTunnelBridgeDirection(tile);
01333 if (side != INVALID_DIAGDIR && side != ReverseDiagDir(dir)) return 0;
01334 return CombineTrackStatus(TrackBitsToTrackdirBits(DiagDirToDiagTrackBits(dir)), TRACKDIR_BIT_NONE);
01335 }
01336
01337 static void ChangeTileOwner_TunnelBridge(TileIndex tile, Owner old_owner, Owner new_owner)
01338 {
01339 for (RoadType rt = ROADTYPE_ROAD; rt < ROADTYPE_END; rt++) {
01340
01341 if (GetRoadOwner(tile, rt) == old_owner) {
01342 SetRoadOwner(tile, rt, new_owner == INVALID_OWNER ? OWNER_NONE : new_owner);
01343 }
01344 }
01345
01346 if (!IsTileOwner(tile, old_owner)) return;
01347
01348 if (new_owner != INVALID_OWNER) {
01349 SetTileOwner(tile, new_owner);
01350 } else {
01351 if (DoCommand(tile, 0, 0, DC_EXEC | DC_BANKRUPT, CMD_LANDSCAPE_CLEAR).Failed()) {
01352
01353
01354
01355
01356 assert(GetTunnelBridgeTransportType(tile) != TRANSPORT_RAIL);
01357 SetTileOwner(tile, OWNER_NONE);
01358 }
01359 }
01360 }
01361
01362
01363 static const byte _tunnel_fractcoord_1[4] = {0x8E, 0x18, 0x81, 0xE8};
01364 static const byte _tunnel_fractcoord_2[4] = {0x81, 0x98, 0x87, 0x38};
01365 static const byte _tunnel_fractcoord_3[4] = {0x82, 0x88, 0x86, 0x48};
01366 static const byte _exit_tunnel_track[4] = {1, 2, 1, 2};
01367
01369 static const Trackdir _road_exit_tunnel_state[DIAGDIR_END] = {
01370 TRACKDIR_X_SW, TRACKDIR_Y_NW, TRACKDIR_X_NE, TRACKDIR_Y_SE
01371 };
01372 static const byte _road_exit_tunnel_frame[4] = {2, 7, 9, 4};
01373
01374 static const byte _tunnel_fractcoord_4[4] = {0x52, 0x85, 0x98, 0x29};
01375 static const byte _tunnel_fractcoord_5[4] = {0x92, 0x89, 0x58, 0x25};
01376 static const byte _tunnel_fractcoord_6[4] = {0x92, 0x89, 0x56, 0x45};
01377 static const byte _tunnel_fractcoord_7[4] = {0x52, 0x85, 0x96, 0x49};
01378
01379 static VehicleEnterTileStatus VehicleEnter_TunnelBridge(Vehicle *v, TileIndex tile, int x, int y)
01380 {
01381 int z = GetSlopeZ(x, y) - v->z_pos;
01382
01383 if (abs(z) > 2) return VETSB_CANNOT_ENTER;
01384 const DiagDirection dir = GetTunnelBridgeDirection(tile);
01385
01386 if (IsTunnel(tile)) {
01387 byte fc;
01388 DiagDirection vdir;
01389
01390 if (v->type == VEH_TRAIN) {
01391 Train *t = Train::From(v);
01392 fc = (x & 0xF) + (y << 4);
01393
01394 vdir = DirToDiagDir(t->direction);
01395
01396 if (t->track != TRACK_BIT_WORMHOLE && dir == vdir) {
01397 if (t->IsFrontEngine() && fc == _tunnel_fractcoord_1[dir]) {
01398 if (!PlayVehicleSound(t, VSE_TUNNEL) && RailVehInfo(t->engine_type)->engclass == 0) {
01399 SndPlayVehicleFx(SND_05_TRAIN_THROUGH_TUNNEL, v);
01400 }
01401 return VETSB_CONTINUE;
01402 }
01403 if (fc == _tunnel_fractcoord_2[dir]) {
01404 t->tile = tile;
01405 t->track = TRACK_BIT_WORMHOLE;
01406 t->vehstatus |= VS_HIDDEN;
01407 return VETSB_ENTERED_WORMHOLE;
01408 }
01409 }
01410
01411 if (dir == ReverseDiagDir(vdir) && fc == _tunnel_fractcoord_3[dir] && z == 0) {
01412
01413 t->tile = tile;
01414 t->track = (TrackBits)_exit_tunnel_track[dir];
01415 assert(t->track);
01416 t->vehstatus &= ~VS_HIDDEN;
01417 return VETSB_ENTERED_WORMHOLE;
01418 }
01419 } else if (v->type == VEH_ROAD) {
01420 RoadVehicle *rv = RoadVehicle::From(v);
01421 fc = (x & 0xF) + (y << 4);
01422 vdir = DirToDiagDir(v->direction);
01423
01424
01425 if (rv->state != RVSB_WORMHOLE && dir == vdir) {
01426 if (fc == _tunnel_fractcoord_4[dir] ||
01427 fc == _tunnel_fractcoord_5[dir]) {
01428 rv->tile = tile;
01429 rv->state = RVSB_WORMHOLE;
01430 rv->vehstatus |= VS_HIDDEN;
01431 return VETSB_ENTERED_WORMHOLE;
01432 } else {
01433 return VETSB_CONTINUE;
01434 }
01435 }
01436
01437 if (dir == ReverseDiagDir(vdir) && (
01438
01439 fc == _tunnel_fractcoord_6[dir] ||
01440 fc == _tunnel_fractcoord_7[dir]
01441 ) &&
01442 z == 0) {
01443 rv->tile = tile;
01444 rv->state = _road_exit_tunnel_state[dir];
01445 rv->frame = _road_exit_tunnel_frame[dir];
01446 rv->vehstatus &= ~VS_HIDDEN;
01447 return VETSB_ENTERED_WORMHOLE;
01448 }
01449 }
01450 } else {
01451
01452 if (v->IsPrimaryVehicle() && v->type != VEH_SHIP) {
01453
01454 uint16 spd = GetBridgeSpec(GetBridgeType(tile))->speed;
01455
01456 if (v->type == VEH_ROAD) spd *= 2;
01457 if (v->cur_speed > spd) v->cur_speed = spd;
01458 }
01459
01460 if (DirToDiagDir(v->direction) == dir) {
01461 switch (dir) {
01462 default: NOT_REACHED();
01463 case DIAGDIR_NE: if ((x & 0xF) != 0) return VETSB_CONTINUE; break;
01464 case DIAGDIR_SE: if ((y & 0xF) != TILE_SIZE - 1) return VETSB_CONTINUE; break;
01465 case DIAGDIR_SW: if ((x & 0xF) != TILE_SIZE - 1) return VETSB_CONTINUE; break;
01466 case DIAGDIR_NW: if ((y & 0xF) != 0) return VETSB_CONTINUE; break;
01467 }
01468 switch (v->type) {
01469 case VEH_TRAIN: {
01470 Train *t = Train::From(v);
01471 t->track = TRACK_BIT_WORMHOLE;
01472 ClrBit(t->flags, VRF_GOINGUP);
01473 ClrBit(t->flags, VRF_GOINGDOWN);
01474 } break;
01475
01476 case VEH_ROAD:
01477 RoadVehicle::From(v)->state = RVSB_WORMHOLE;
01478 break;
01479
01480 case VEH_SHIP:
01481 Ship::From(v)->state = TRACK_BIT_WORMHOLE;
01482 break;
01483
01484 default: NOT_REACHED();
01485 }
01486 return VETSB_ENTERED_WORMHOLE;
01487 } else if (DirToDiagDir(v->direction) == ReverseDiagDir(dir)) {
01488 v->tile = tile;
01489 switch (v->type) {
01490 case VEH_TRAIN: {
01491 Train *t = Train::From(v);
01492 if (t->track == TRACK_BIT_WORMHOLE) {
01493 t->track = (DiagDirToAxis(dir) == AXIS_X ? TRACK_BIT_X : TRACK_BIT_Y);
01494 return VETSB_ENTERED_WORMHOLE;
01495 }
01496 } break;
01497
01498 case VEH_ROAD: {
01499 RoadVehicle *rv = RoadVehicle::From(v);
01500 if (rv->state == RVSB_WORMHOLE) {
01501 rv->state = _road_exit_tunnel_state[dir];
01502 rv->frame = 0;
01503 return VETSB_ENTERED_WORMHOLE;
01504 }
01505 } break;
01506
01507 case VEH_SHIP: {
01508 Ship *ship = Ship::From(v);
01509 if (ship->state == TRACK_BIT_WORMHOLE) {
01510 ship->state = (DiagDirToAxis(dir) == AXIS_X ? TRACK_BIT_X : TRACK_BIT_Y);
01511 return VETSB_ENTERED_WORMHOLE;
01512 }
01513 } break;
01514
01515 default: NOT_REACHED();
01516 }
01517 }
01518 }
01519 return VETSB_CONTINUE;
01520 }
01521
01522 static CommandCost TerraformTile_TunnelBridge(TileIndex tile, DoCommandFlag flags, uint z_new, Slope tileh_new)
01523 {
01524 if (_settings_game.construction.build_on_slopes && AutoslopeEnabled() && IsBridge(tile) && GetTunnelBridgeTransportType(tile) != TRANSPORT_WATER) {
01525 DiagDirection direction = GetTunnelBridgeDirection(tile);
01526 Axis axis = DiagDirToAxis(direction);
01527 CommandCost res;
01528 uint z_old;
01529 Slope tileh_old = GetTileSlope(tile, &z_old);
01530
01531
01532 if ((direction == DIAGDIR_NW) || (direction == DIAGDIR_NE)) {
01533 CheckBridgeSlopeSouth(axis, &tileh_old, &z_old);
01534 res = CheckBridgeSlopeSouth(axis, &tileh_new, &z_new);
01535 } else {
01536 CheckBridgeSlopeNorth(axis, &tileh_old, &z_old);
01537 res = CheckBridgeSlopeNorth(axis, &tileh_new, &z_new);
01538 }
01539
01540
01541 if (res.Succeeded() && (z_old == z_new) && (tileh_old == tileh_new)) return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
01542 }
01543
01544 return DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
01545 }
01546
01547 extern const TileTypeProcs _tile_type_tunnelbridge_procs = {
01548 DrawTile_TunnelBridge,
01549 GetSlopeZ_TunnelBridge,
01550 ClearTile_TunnelBridge,
01551 NULL,
01552 GetTileDesc_TunnelBridge,
01553 GetTileTrackStatus_TunnelBridge,
01554 NULL,
01555 NULL,
01556 TileLoop_TunnelBridge,
01557 ChangeTileOwner_TunnelBridge,
01558 NULL,
01559 VehicleEnter_TunnelBridge,
01560 GetFoundation_TunnelBridge,
01561 TerraformTile_TunnelBridge,
01562 };