00001
00002
00008 #include "stdafx.h"
00009 #include "openttd.h"
00010 #include "rail_map.h"
00011 #include "landscape.h"
00012 #include "unmovable_map.h"
00013 #include "viewport_func.h"
00014 #include "command_func.h"
00015 #include "town.h"
00016 #include "variables.h"
00017 #include "train.h"
00018 #include "water_map.h"
00019 #include "yapf/yapf.h"
00020 #include "newgrf_sound.h"
00021 #include "autoslope.h"
00022 #include "tunnelbridge_map.h"
00023 #include "strings_func.h"
00024 #include "date_func.h"
00025 #include "functions.h"
00026 #include "vehicle_func.h"
00027 #include "sound_func.h"
00028 #include "tunnelbridge.h"
00029 #include "engine_base.h"
00030 #include "cheat_type.h"
00031 #include "elrail_func.h"
00032 #include "landscape_type.h"
00033
00034 #include "table/sprites.h"
00035 #include "table/strings.h"
00036 #include "table/bridge_land.h"
00037
00038 BridgeSpec _bridge[MAX_BRIDGES];
00039 TileIndex _build_tunnel_endtile;
00040
00042 void ResetBridges()
00043 {
00044
00045 for (BridgeType i = 0; i < MAX_BRIDGES; i++) {
00046 if (_bridge[i].sprite_table != NULL) {
00047 for (BridgePieces j = BRIDGE_PIECE_NORTH; j < BRIDGE_PIECE_INVALID; j++) free(_bridge[i].sprite_table[j]);
00048 free(_bridge[i].sprite_table);
00049 }
00050 }
00051
00052
00053 memset(&_bridge, 0, sizeof(_bridge));
00054
00055 memcpy(&_bridge, &_orig_bridge, sizeof(_orig_bridge));
00056 }
00057
00061 int CalcBridgeLenCostFactor(int x)
00062 {
00063 int n;
00064 int r;
00065
00066 if (x < 2) return x;
00067 x -= 2;
00068 for (n = 0, r = 2;; n++) {
00069 if (x <= n) return r + x * n;
00070 r += n * n;
00071 x -= n;
00072 }
00073 }
00074
00075 Foundation GetBridgeFoundation(Slope tileh, Axis axis)
00076 {
00077 if ((tileh == SLOPE_FLAT) ||
00078 (((tileh == SLOPE_NE) || (tileh == SLOPE_SW)) && (axis == AXIS_X)) ||
00079 (((tileh == SLOPE_NW) || (tileh == SLOPE_SE)) && (axis == AXIS_Y))) return FOUNDATION_NONE;
00080
00081 return (HasSlopeHighestCorner(tileh) ? InclinedFoundation(axis) : FlatteningFoundation(tileh));
00082 }
00083
00091 bool HasBridgeFlatRamp(Slope tileh, Axis axis)
00092 {
00093 ApplyFoundationToSlope(GetBridgeFoundation(tileh, axis), &tileh);
00094
00095 return (tileh != SLOPE_FLAT);
00096 }
00097
00098 static inline const PalSpriteID *GetBridgeSpriteTable(int index, BridgePieces table)
00099 {
00100 const BridgeSpec *bridge = GetBridgeSpec(index);
00101 assert(table < BRIDGE_PIECE_INVALID);
00102 if (bridge->sprite_table == NULL || bridge->sprite_table[table] == NULL) {
00103 return _bridge_sprite_table[index][table];
00104 } else {
00105 return bridge->sprite_table[table];
00106 }
00107 }
00108
00109
00118 static CommandCost CheckBridgeSlopeNorth(Axis axis, Slope *tileh, uint *z)
00119 {
00120 Foundation f = GetBridgeFoundation(*tileh, axis);
00121 *z += ApplyFoundationToSlope(f, tileh);
00122
00123 Slope valid_inclined = (axis == AXIS_X ? SLOPE_NE : SLOPE_NW);
00124 if ((*tileh != SLOPE_FLAT) && (*tileh != valid_inclined)) return CMD_ERROR;
00125
00126 if (f == FOUNDATION_NONE) return CommandCost();
00127
00128 return CommandCost(EXPENSES_CONSTRUCTION, _price.terraform);
00129 }
00130
00139 static CommandCost CheckBridgeSlopeSouth(Axis axis, Slope *tileh, uint *z)
00140 {
00141 Foundation f = GetBridgeFoundation(*tileh, axis);
00142 *z += ApplyFoundationToSlope(f, tileh);
00143
00144 Slope valid_inclined = (axis == AXIS_X ? SLOPE_SW : SLOPE_SE);
00145 if ((*tileh != SLOPE_FLAT) && (*tileh != valid_inclined)) return CMD_ERROR;
00146
00147 if (f == FOUNDATION_NONE) return CommandCost();
00148
00149 return CommandCost(EXPENSES_CONSTRUCTION, _price.terraform);
00150 }
00151
00152 bool CheckBridge_Stuff(BridgeType bridge_type, uint bridge_len, DoCommandFlag flags)
00153 {
00154 if (flags & DC_QUERY_COST) {
00155 return bridge_len <= (_settings_game.construction.longbridges ? 100U : 16U);
00156 }
00157
00158 if (bridge_type >= MAX_BRIDGES) return false;
00159
00160 const BridgeSpec *b = GetBridgeSpec(bridge_type);
00161 if (b->avail_year > _cur_year) return false;
00162
00163 uint max = b->max_length;
00164 if (max >= 16 && _settings_game.construction.longbridges) max = 100;
00165
00166 return b->min_length <= bridge_len && bridge_len <= max;
00167 }
00168
00178 CommandCost CmdBuildBridge(TileIndex end_tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00179 {
00180 BridgeType bridge_type;
00181 RailType railtype = INVALID_RAILTYPE;
00182 RoadTypes roadtypes = ROADTYPES_NONE;
00183 uint x;
00184 uint y;
00185 uint sx;
00186 uint sy;
00187 TileIndex tile_start;
00188 TileIndex tile_end;
00189 Slope tileh_start;
00190 Slope tileh_end;
00191 uint z_start;
00192 uint z_end;
00193 TileIndex tile;
00194 TileIndexDiff delta;
00195 uint bridge_len;
00196 Axis direction;
00197 CommandCost cost(EXPENSES_CONSTRUCTION);
00198 CommandCost ret;
00199 bool replace_bridge = false;
00200 BridgeType replaced_bridge_type;
00201 TransportType transport_type;
00202
00203
00204 bridge_type = GB(p2, 0, 8);
00205
00206 if (p1 >= MapSize()) return CMD_ERROR;
00207
00208 transport_type = (TransportType)GB(p2, 15, 2);
00209
00210
00211 switch (transport_type) {
00212 case TRANSPORT_ROAD:
00213 roadtypes = (RoadTypes)GB(p2, 8, 2);
00214 if (!AreValidRoadTypes(roadtypes) || !HasRoadTypesAvail(_current_company, roadtypes)) return CMD_ERROR;
00215 break;
00216
00217 case TRANSPORT_RAIL:
00218 railtype = (RailType)GB(p2, 8, 7);
00219 if (!ValParamRailtype(railtype)) return CMD_ERROR;
00220 break;
00221
00222 case TRANSPORT_WATER:
00223 break;
00224
00225 default:
00226
00227 return CMD_ERROR;
00228 }
00229
00230 x = TileX(end_tile);
00231 y = TileY(end_tile);
00232 sx = TileX(p1);
00233 sy = TileY(p1);
00234
00235
00236 if (x == sx) {
00237 if (y == sy) return_cmd_error(STR_5008_CANNOT_START_AND_END_ON);
00238 direction = AXIS_Y;
00239 if (y > sy) Swap(y, sy);
00240 } else if (y == sy) {
00241 direction = AXIS_X;
00242 if (x > sx) Swap(x, sx);
00243 } else {
00244 return_cmd_error(STR_500A_START_AND_END_MUST_BE_IN);
00245 }
00246
00247 bridge_len = sx + sy - x - y - 1;
00248 if (transport_type != TRANSPORT_WATER) {
00249
00250 if (!CheckBridge_Stuff(bridge_type, bridge_len, flags)) return_cmd_error(STR_5015_CAN_T_BUILD_BRIDGE_HERE);
00251 } else {
00252 if (bridge_len > (_settings_game.construction.longbridges ? 100U : 16U)) return_cmd_error(STR_5015_CAN_T_BUILD_BRIDGE_HERE);
00253 }
00254
00255
00256 tile_start = TileXY(x, y);
00257 tile_end = TileXY(sx, sy);
00258 if (IsWaterTile(tile_start) || IsWaterTile(tile_end)) {
00259 return_cmd_error(STR_02A0_ENDS_OF_BRIDGE_MUST_BOTH);
00260 }
00261
00262 tileh_start = GetTileSlope(tile_start, &z_start);
00263 tileh_end = GetTileSlope(tile_end, &z_end);
00264
00265 CommandCost terraform_cost_north = CheckBridgeSlopeNorth(direction, &tileh_start, &z_start);
00266 CommandCost terraform_cost_south = CheckBridgeSlopeSouth(direction, &tileh_end, &z_end);
00267
00268 if (z_start != z_end) return_cmd_error(STR_BRIDGEHEADS_NOT_SAME_HEIGHT);
00269
00270 if (IsBridgeTile(tile_start) && IsBridgeTile(tile_end) &&
00271 GetOtherBridgeEnd(tile_start) == tile_end &&
00272 GetTunnelBridgeTransportType(tile_start) == transport_type) {
00273
00274
00275
00276 if (transport_type == TRANSPORT_RAIL && GetRailType(tile_start) != railtype) {
00277 return_cmd_error(STR_5007_MUST_DEMOLISH_BRIDGE_FIRST);
00278 }
00279
00280
00281 if (!(flags & DC_QUERY_COST) && IsTileOwner(tile_start, OWNER_TOWN) &&
00282 GetBridgeSpec(bridge_type)->speed < GetBridgeSpec(GetBridgeType(tile_start))->speed) {
00283 Town *t = ClosestTownFromTile(tile_start, UINT_MAX);
00284
00285 if (t == NULL) {
00286 return CMD_ERROR;
00287 } else {
00288 SetDParam(0, t->index);
00289 return_cmd_error(STR_2009_LOCAL_AUTHORITY_REFUSES);
00290 }
00291 }
00292
00293
00294 if (!(flags & DC_QUERY_COST) && bridge_type == GetBridgeType(tile_start)) {
00295 return_cmd_error(STR_1007_ALREADY_BUILT);
00296 }
00297
00298
00299 if (!IsTileOwner(tile_start, _current_company) && !IsTileOwner(tile_start, OWNER_TOWN)) {
00300 return_cmd_error(STR_1024_AREA_IS_OWNED_BY_ANOTHER);
00301 }
00302
00303 cost.AddCost((bridge_len + 1) * _price.clear_bridge);
00304 replace_bridge = true;
00305 replaced_bridge_type = GetBridgeType(tile_start);
00306
00307
00308 roadtypes |= GetRoadTypes(tile_start);
00309 } else {
00310
00311
00312 bool allow_on_slopes = (_settings_game.construction.build_on_slopes && transport_type != TRANSPORT_WATER);
00313
00314
00315 ret = DoCommand(tile_start, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00316 if (CmdFailed(ret)) return ret;
00317 cost = ret;
00318
00319 if (CmdFailed(terraform_cost_north) || (terraform_cost_north.GetCost() != 0 && !allow_on_slopes))
00320 return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION);
00321 cost.AddCost(terraform_cost_north);
00322
00323
00324 ret = DoCommand(tile_end, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00325 if (CmdFailed(ret)) return ret;
00326 cost.AddCost(ret);
00327
00328
00329 if (CmdFailed(terraform_cost_south) || (terraform_cost_south.GetCost() != 0 && !allow_on_slopes))
00330 return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION);
00331 cost.AddCost(terraform_cost_south);
00332
00333 if (transport_type == TRANSPORT_WATER && (tileh_start == SLOPE_FLAT || tileh_end == SLOPE_FLAT)) return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION);
00334 }
00335
00336 if (!replace_bridge) {
00337 TileIndex Heads[] = {tile_start, tile_end};
00338 int i;
00339
00340 for (i = 0; i < 2; i++) {
00341 if (MayHaveBridgeAbove(Heads[i])) {
00342 if (IsBridgeAbove(Heads[i])) {
00343 TileIndex north_head = GetNorthernBridgeEnd(Heads[i]);
00344
00345 if (direction == GetBridgeAxis(Heads[i])) return_cmd_error(STR_5007_MUST_DEMOLISH_BRIDGE_FIRST);
00346
00347 if (z_start + TILE_HEIGHT == GetBridgeHeight(north_head)) {
00348 return_cmd_error(STR_5007_MUST_DEMOLISH_BRIDGE_FIRST);
00349 }
00350 }
00351 }
00352 }
00353 }
00354
00355
00356 if (flags & DC_EXEC) {
00357 DiagDirection dir = AxisToDiagDir(direction);
00358 Owner owner = replace_bridge ? GetTileOwner(tile_start) : _current_company;
00359
00360 switch (transport_type) {
00361 case TRANSPORT_RAIL:
00362 MakeRailBridgeRamp(tile_start, owner, bridge_type, dir, railtype);
00363 MakeRailBridgeRamp(tile_end, owner, bridge_type, ReverseDiagDir(dir), railtype);
00364 break;
00365
00366 case TRANSPORT_ROAD:
00367 MakeRoadBridgeRamp(tile_start, owner, bridge_type, dir, roadtypes);
00368 MakeRoadBridgeRamp(tile_end, owner, bridge_type, ReverseDiagDir(dir), roadtypes);
00369 break;
00370
00371 case TRANSPORT_WATER:
00372 MakeAqueductBridgeRamp(tile_start, owner, dir);
00373 MakeAqueductBridgeRamp(tile_end, owner, ReverseDiagDir(dir));
00374 break;
00375
00376 default:
00377 NOT_REACHED();
00378 break;
00379 }
00380 MarkTileDirtyByTile(tile_start);
00381 MarkTileDirtyByTile(tile_end);
00382 }
00383
00384 delta = (direction == AXIS_X ? TileDiffXY(1, 0) : TileDiffXY(0, 1));
00385 for (tile = tile_start + delta; tile != tile_end; tile += delta) {
00386 if (GetTileMaxZ(tile) > z_start) return_cmd_error(STR_BRIDGE_TOO_LOW_FOR_TERRAIN);
00387
00388 if (MayHaveBridgeAbove(tile) && IsBridgeAbove(tile) && !replace_bridge) {
00389
00390 return_cmd_error(STR_5007_MUST_DEMOLISH_BRIDGE_FIRST);
00391 }
00392
00393 switch (GetTileType(tile)) {
00394 case MP_WATER:
00395 if (!IsWater(tile) && !IsCoast(tile)) goto not_valid_below;
00396 break;
00397
00398 case MP_RAILWAY:
00399 if (!IsPlainRail(tile)) goto not_valid_below;
00400 break;
00401
00402 case MP_ROAD:
00403 if (IsRoadDepot(tile)) goto not_valid_below;
00404 break;
00405
00406 case MP_TUNNELBRIDGE:
00407 if (IsTunnel(tile)) break;
00408 if (replace_bridge) break;
00409 if (direction == DiagDirToAxis(GetTunnelBridgeDirection(tile))) goto not_valid_below;
00410 if (z_start < GetBridgeHeight(tile)) goto not_valid_below;
00411 break;
00412
00413 case MP_UNMOVABLE:
00414 if (!IsOwnedLand(tile)) goto not_valid_below;
00415 break;
00416
00417 case MP_CLEAR:
00418 break;
00419
00420 default:
00421 not_valid_below:;
00422
00423 ret = DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00424 if (CmdFailed(ret)) return ret;
00425 cost.AddCost(ret);
00426 break;
00427 }
00428
00429 if (flags & DC_EXEC) {
00430 SetBridgeMiddle(tile, direction);
00431 MarkTileDirtyByTile(tile);
00432 }
00433 }
00434
00435 if (flags & DC_EXEC && transport_type == TRANSPORT_RAIL) {
00436 Track track = AxisToTrack(direction);
00437 AddSideToSignalBuffer(tile_start, INVALID_DIAGDIR, _current_company);
00438 YapfNotifyTrackLayoutChange(tile_start, track);
00439 }
00440
00441
00442
00443
00444
00445 if (!(flags & DC_QUERY_COST) || (IsValidCompanyID(_current_company) && GetCompany(_current_company)->is_ai)) {
00446 bridge_len += 2;
00447
00448 if (IsValidCompanyID(_current_company))
00449 bridge_len = CalcBridgeLenCostFactor(bridge_len);
00450
00451 cost.AddCost((int64)bridge_len * _price.build_bridge * GetBridgeSpec(bridge_type)->price >> 8);
00452
00453
00454 if (transport_type == TRANSPORT_WATER) cost.AddCost((int64)bridge_len * _price.clear_water);
00455 }
00456
00457 return cost;
00458 }
00459
00460
00467 CommandCost CmdBuildTunnel(TileIndex start_tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00468 {
00469 TileIndexDiff delta;
00470 TileIndex end_tile;
00471 DiagDirection direction;
00472 Slope start_tileh;
00473 Slope end_tileh;
00474 TransportType transport_type = (TransportType)GB(p1, 9, 1);
00475 uint start_z;
00476 uint end_z;
00477 CommandCost cost(EXPENSES_CONSTRUCTION);
00478 CommandCost ret;
00479
00480 _build_tunnel_endtile = 0;
00481 if (transport_type == TRANSPORT_RAIL) {
00482 if (!ValParamRailtype((RailType)p1)) return CMD_ERROR;
00483 } else {
00484 const RoadTypes rts = (RoadTypes)GB(p1, 0, 2);
00485 if (!AreValidRoadTypes(rts) || !HasRoadTypesAvail(_current_company, rts)) return CMD_ERROR;
00486 }
00487
00488 start_tileh = GetTileSlope(start_tile, &start_z);
00489 direction = GetInclinedSlopeDirection(start_tileh);
00490 if (direction == INVALID_DIAGDIR) return_cmd_error(STR_500B_SITE_UNSUITABLE_FOR_TUNNEL);
00491
00492 if (IsWaterTile(start_tile)) return_cmd_error(STR_3807_CAN_T_BUILD_ON_WATER);
00493
00494 ret = DoCommand(start_tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00495 if (CmdFailed(ret)) return ret;
00496
00497
00498
00499
00500
00501
00502 delta = TileOffsByDiagDir(direction);
00503 DiagDirection tunnel_in_way_dir;
00504 if (DiagDirToAxis(direction) == AXIS_Y) {
00505 tunnel_in_way_dir = (TileX(start_tile) < (MapMaxX() / 2)) ? DIAGDIR_SW : DIAGDIR_NE;
00506 } else {
00507 tunnel_in_way_dir = (TileY(start_tile) < (MapMaxX() / 2)) ? DIAGDIR_SE : DIAGDIR_NW;
00508 }
00509
00510 end_tile = start_tile;
00511
00513 int tiles_coef = 3;
00515 int tiles = 0;
00517 int tiles_bump = 25;
00518
00519 for (;;) {
00520 end_tile += delta;
00521 if (!IsValidTile(end_tile)) return_cmd_error(STR_TUNNEL_THROUGH_MAP_BORDER);
00522 end_tileh = GetTileSlope(end_tile, &end_z);
00523
00524 if (start_z == end_z) break;
00525
00526 if (!_cheats.crossing_tunnels.value && IsTunnelInWayDir(end_tile, start_z, tunnel_in_way_dir)) {
00527 return_cmd_error(STR_5003_ANOTHER_TUNNEL_IN_THE_WAY);
00528 }
00529
00530 tiles++;
00531 if (tiles == tiles_bump) {
00532 tiles_coef++;
00533 tiles_bump *= 2;
00534 }
00535
00536 cost.AddCost(_price.build_tunnel);
00537 cost.AddCost(cost.GetCost() >> tiles_coef);
00538 }
00539
00540
00541 cost.AddCost(_price.build_tunnel);
00542 cost.AddCost(ret);
00543
00544
00545 _build_tunnel_endtile = end_tile;
00546
00547 if (IsWaterTile(end_tile)) return_cmd_error(STR_3807_CAN_T_BUILD_ON_WATER);
00548
00549
00550 if (end_tileh != ComplementSlope(start_tileh)) {
00551
00552
00553
00554
00555 ret = DoCommand(end_tile, 0, 0, DC_AUTO, CMD_LANDSCAPE_CLEAR);
00556 if (CmdFailed(ret)) return_cmd_error(STR_5005_UNABLE_TO_EXCAVATE_LAND);
00557
00558 ret = DoCommand(end_tile, end_tileh & start_tileh, 0, flags, CMD_TERRAFORM_LAND);
00559 if (CmdFailed(ret)) return_cmd_error(STR_5005_UNABLE_TO_EXCAVATE_LAND);
00560 } else {
00561 ret = DoCommand(end_tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00562 if (CmdFailed(ret)) return ret;
00563 }
00564 cost.AddCost(_price.build_tunnel);
00565 cost.AddCost(ret);
00566
00567 if (flags & DC_EXEC) {
00568 if (transport_type == TRANSPORT_RAIL) {
00569 MakeRailTunnel(start_tile, _current_company, direction, (RailType)GB(p1, 0, 4));
00570 MakeRailTunnel(end_tile, _current_company, ReverseDiagDir(direction), (RailType)GB(p1, 0, 4));
00571 AddSideToSignalBuffer(start_tile, INVALID_DIAGDIR, _current_company);
00572 YapfNotifyTrackLayoutChange(start_tile, DiagDirToDiagTrack(direction));
00573 } else {
00574 MakeRoadTunnel(start_tile, _current_company, direction, (RoadTypes)GB(p1, 0, 2));
00575 MakeRoadTunnel(end_tile, _current_company, ReverseDiagDir(direction), (RoadTypes)GB(p1, 0, 2));
00576 }
00577 }
00578
00579 return cost;
00580 }
00581
00582
00583 static inline bool CheckAllowRemoveTunnelBridge(TileIndex tile)
00584 {
00585
00586 if (_current_company == OWNER_WATER || _game_mode == GM_EDITOR) return true;
00587
00588 switch (GetTunnelBridgeTransportType(tile)) {
00589 case TRANSPORT_ROAD: {
00590 RoadTypes rts = GetRoadTypes(tile);
00591 Owner road_owner = _current_company;
00592 Owner tram_owner = _current_company;
00593
00594 if (HasBit(rts, ROADTYPE_ROAD)) road_owner = GetRoadOwner(tile, ROADTYPE_ROAD);
00595 if (HasBit(rts, ROADTYPE_TRAM)) tram_owner = GetRoadOwner(tile, ROADTYPE_TRAM);
00596
00597
00598 if (road_owner == OWNER_TOWN && !(_settings_game.construction.extra_dynamite || _cheats.magic_bulldozer.value)) return CheckTileOwnership(tile);
00599 if (road_owner == OWNER_NONE || road_owner == OWNER_TOWN) road_owner = _current_company;
00600 if (tram_owner == OWNER_NONE) tram_owner = _current_company;
00601
00602 return CheckOwnership(road_owner) && CheckOwnership(tram_owner);
00603 }
00604
00605 case TRANSPORT_RAIL:
00606 case TRANSPORT_WATER:
00607 return CheckOwnership(GetTileOwner(tile));
00608
00609 default: NOT_REACHED();
00610 }
00611 }
00612
00613 static CommandCost DoClearTunnel(TileIndex tile, DoCommandFlag flags)
00614 {
00615 Town *t = NULL;
00616 TileIndex endtile;
00617
00618 if (!CheckAllowRemoveTunnelBridge(tile)) return CMD_ERROR;
00619
00620 endtile = GetOtherTunnelEnd(tile);
00621
00622 if (HasVehicleOnTunnelBridge(tile, endtile)) return CMD_ERROR;
00623
00624 _build_tunnel_endtile = endtile;
00625
00626 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00627 t = ClosestTownFromTile(tile, UINT_MAX);
00628
00629
00630
00631 if (!CheckforTownRating(flags, t, TUNNELBRIDGE_REMOVE)) {
00632 SetDParam(0, t->index);
00633 return_cmd_error(STR_2009_LOCAL_AUTHORITY_REFUSES);
00634 }
00635 }
00636
00637
00638
00639 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00640 ChangeTownRating(t, RATING_TUNNEL_BRIDGE_DOWN_STEP, RATING_TUNNEL_BRIDGE_MINIMUM, flags);
00641 }
00642
00643 if (flags & DC_EXEC) {
00644 if (GetTunnelBridgeTransportType(tile) == TRANSPORT_RAIL) {
00645
00646 DiagDirection dir = GetTunnelBridgeDirection(tile);
00647 Track track = DiagDirToDiagTrack(dir);
00648 Owner owner = GetTileOwner(tile);
00649
00650 Vehicle *v = NULL;
00651 if (GetTunnelBridgeReservation(tile)) {
00652 v = GetTrainForReservation(tile, track);
00653 if (v != NULL) FreeTrainTrackReservation(v);
00654 }
00655
00656 DoClearSquare(tile);
00657 DoClearSquare(endtile);
00658
00659
00660 AddSideToSignalBuffer(tile, ReverseDiagDir(dir), owner);
00661 AddSideToSignalBuffer(endtile, dir, owner);
00662
00663 YapfNotifyTrackLayoutChange(tile, track);
00664 YapfNotifyTrackLayoutChange(endtile, track);
00665
00666 if (v != NULL) TryPathReserve(v);
00667 } else {
00668 DoClearSquare(tile);
00669 DoClearSquare(endtile);
00670 }
00671 }
00672 return CommandCost(EXPENSES_CONSTRUCTION, _price.clear_tunnel * (GetTunnelBridgeLength(tile, endtile) + 2));
00673 }
00674
00675
00676 static CommandCost DoClearBridge(TileIndex tile, DoCommandFlag flags)
00677 {
00678 DiagDirection direction;
00679 TileIndexDiff delta;
00680 TileIndex endtile;
00681 Town *t = NULL;
00682
00683 if (!CheckAllowRemoveTunnelBridge(tile)) return CMD_ERROR;
00684
00685 endtile = GetOtherBridgeEnd(tile);
00686
00687 if (HasVehicleOnTunnelBridge(tile, endtile)) return CMD_ERROR;
00688
00689 direction = GetTunnelBridgeDirection(tile);
00690 delta = TileOffsByDiagDir(direction);
00691
00692 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00693 t = ClosestTownFromTile(tile, UINT_MAX);
00694
00695
00696
00697 if (!CheckforTownRating(flags, t, TUNNELBRIDGE_REMOVE)) {
00698 SetDParam(0, t->index);
00699 return_cmd_error(STR_2009_LOCAL_AUTHORITY_REFUSES);
00700 }
00701 }
00702
00703
00704
00705 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00706 ChangeTownRating(t, RATING_TUNNEL_BRIDGE_DOWN_STEP, RATING_TUNNEL_BRIDGE_MINIMUM, flags);
00707 }
00708
00709 if (flags & DC_EXEC) {
00710
00711 bool rail = GetTunnelBridgeTransportType(tile) == TRANSPORT_RAIL;
00712 Owner owner = GetTileOwner(tile);
00713 uint height = GetBridgeHeight(tile);
00714 Vehicle *v = NULL;
00715
00716 if (rail && GetTunnelBridgeReservation(tile)) {
00717 v = GetTrainForReservation(tile, DiagDirToDiagTrack(direction));
00718 if (v != NULL) FreeTrainTrackReservation(v);
00719 }
00720
00721 DoClearSquare(tile);
00722 DoClearSquare(endtile);
00723 for (TileIndex c = tile + delta; c != endtile; c += delta) {
00724
00725 if (IsNormalRoadTile(c) && GetRoadside(c) == ROADSIDE_TREES) {
00726 uint minz = GetTileMaxZ(c) + 3 * TILE_HEIGHT;
00727 if (height < minz) SetRoadside(c, ROADSIDE_PAVED);
00728 }
00729 ClearBridgeMiddle(c);
00730 MarkTileDirtyByTile(c);
00731 }
00732
00733 if (rail) {
00734
00735 AddSideToSignalBuffer(tile, ReverseDiagDir(direction), owner);
00736 AddSideToSignalBuffer(endtile, direction, owner);
00737
00738 Track track = DiagDirToDiagTrack(direction);
00739 YapfNotifyTrackLayoutChange(tile, track);
00740 YapfNotifyTrackLayoutChange(endtile, track);
00741
00742 if (v != NULL) TryPathReserve(v, true);
00743 }
00744 }
00745
00746 return CommandCost(EXPENSES_CONSTRUCTION, (GetTunnelBridgeLength(tile, endtile) + 2) * _price.clear_bridge);
00747 }
00748
00749 static CommandCost ClearTile_TunnelBridge(TileIndex tile, DoCommandFlag flags)
00750 {
00751 if (IsTunnel(tile)) {
00752 if (flags & DC_AUTO) return_cmd_error(STR_5006_MUST_DEMOLISH_TUNNEL_FIRST);
00753 return DoClearTunnel(tile, flags);
00754 } else {
00755 if (flags & DC_AUTO) return_cmd_error(STR_5007_MUST_DEMOLISH_BRIDGE_FIRST);
00756 return DoClearBridge(tile, flags);
00757 }
00758
00759 return CMD_ERROR;
00760 }
00761
00773 static void DrawBridgePillars(const PalSpriteID *psid, const TileInfo *ti, Axis axis, bool drawfarpillar, int x, int y, int z_bridge)
00774 {
00775
00776 if (IsInvisibilitySet(TO_BRIDGES)) return;
00777
00778 SpriteID image = psid->sprite;
00779
00780 if (image != 0) {
00781
00782
00783
00784
00785
00786
00787
00788
00789
00790 bool side = HasBit(image, 0);
00791
00792
00793 DiagDirection dir = AxisToDiagDir(axis);
00794 if (side != (axis == AXIS_Y)) dir = ReverseDiagDir(dir);
00795
00796
00797 int front_height = ti->z;
00798 int back_height = ti->z;
00799 GetSlopeZOnEdge(ti->tileh, dir, &front_height, &back_height);
00800
00801
00802 int w = (axis == AXIS_X ? 16 : 2);
00803 int h = (axis == AXIS_X ? 2 : 16);
00804
00805 int x_back = x - (axis == AXIS_X ? 0 : 9);
00806 int y_back = y - (axis == AXIS_X ? 9 : 0);
00807
00808 for (int cur_z = z_bridge; cur_z >= front_height || cur_z >= back_height; cur_z -= TILE_HEIGHT) {
00809
00810 if (cur_z >= front_height) {
00811 AddSortableSpriteToDraw(image, psid->pal, x, y, w, h, BB_HEIGHT_UNDER_BRIDGE - 5, cur_z, IsTransparencySet(TO_BRIDGES), 0, 0, -5);
00812 }
00813
00814
00815 if (drawfarpillar && cur_z >= back_height && cur_z < z_bridge - TILE_HEIGHT) {
00816 AddSortableSpriteToDraw(image, psid->pal, x_back, y_back, w, h, BB_HEIGHT_UNDER_BRIDGE - 5, cur_z, IsTransparencySet(TO_BRIDGES), 0, 0, -5);
00817 }
00818 }
00819 }
00820 }
00821
00831 static void DrawBridgeTramBits(int x, int y, byte z, int offset, bool overlay, bool head)
00832 {
00833 static const SpriteID tram_offsets[2][6] = { { 107, 108, 109, 110, 111, 112 }, { 4, 5, 15, 16, 17, 18 } };
00834 static const SpriteID back_offsets[6] = { 95, 96, 99, 102, 100, 101 };
00835 static const SpriteID front_offsets[6] = { 97, 98, 103, 106, 104, 105 };
00836
00837 static const uint size_x[6] = { 1, 16, 16, 1, 16, 1 };
00838 static const uint size_y[6] = { 16, 1, 1, 16, 1, 16 };
00839 static const uint front_bb_offset_x[6] = { 15, 0, 0, 15, 0, 15 };
00840 static const uint front_bb_offset_y[6] = { 0, 15, 15, 0, 15, 0 };
00841
00842
00843
00844 if (head || !IsInvisibilitySet(TO_BRIDGES)) {
00845 AddSortableSpriteToDraw(SPR_TRAMWAY_BASE + tram_offsets[overlay][offset], PAL_NONE,
00846 x, y, size_x[offset], size_y[offset], 0x28, z,
00847 !head && IsTransparencySet(TO_BRIDGES));
00848 }
00849
00850
00851 if (!IsInvisibilitySet(TO_CATENARY)) {
00852 AddSortableSpriteToDraw(SPR_TRAMWAY_BASE + back_offsets[offset], PAL_NONE,
00853 x, y, size_x[offset], size_y[offset], 0x28, z,
00854 IsTransparencySet(TO_CATENARY));
00855 }
00856
00857
00858 EndSpriteCombine();
00859 StartSpriteCombine();
00860
00861
00862 if (!IsInvisibilitySet(TO_CATENARY)) {
00863 AddSortableSpriteToDraw(SPR_TRAMWAY_BASE + front_offsets[offset], PAL_NONE,
00864 x, y, size_x[offset] + front_bb_offset_x[offset], size_y[offset] + front_bb_offset_y[offset], 0x28, z,
00865 IsTransparencySet(TO_CATENARY), front_bb_offset_x[offset], front_bb_offset_y[offset]);
00866 }
00867 }
00868
00882 static void DrawTile_TunnelBridge(TileInfo *ti)
00883 {
00884 SpriteID image;
00885 TransportType transport_type = GetTunnelBridgeTransportType(ti->tile);
00886 DiagDirection tunnelbridge_direction = GetTunnelBridgeDirection(ti->tile);
00887
00888 if (IsTunnel(ti->tile)) {
00889
00890
00891
00892
00893
00894
00895
00896
00897
00898 static const int _tunnel_BB[4][12] = {
00899
00900
00901 { 1, 0, -15, -14, 0, 15, 16, 1, 0, 1, 16, 15 },
00902 { 0, 1, -14, -15, 15, 0, 1, 16, 1, 0, 15, 16 },
00903 { 1, 0, -15, -14, 0, 15, 16, 1, 0, 1, 16, 15 },
00904 { 0, 1, -14, -15, 15, 0, 1, 16, 1, 0, 15, 16 },
00905 };
00906 const int *BB_data = _tunnel_BB[tunnelbridge_direction];
00907
00908 bool catenary = false;
00909
00910 if (transport_type == TRANSPORT_RAIL) {
00911 image = GetRailTypeInfo(GetRailType(ti->tile))->base_sprites.tunnel;
00912 } else {
00913 image = SPR_TUNNEL_ENTRY_REAR_ROAD;
00914 }
00915
00916 if (HasTunnelBridgeSnowOrDesert(ti->tile)) image += 32;
00917
00918 image += tunnelbridge_direction * 2;
00919 DrawGroundSprite(image, PAL_NONE);
00920
00921
00922 if (_game_mode != GM_MENU && _settings_client.gui.show_track_reservation && (transport_type == TRANSPORT_RAIL && GetTunnelBridgeReservation(ti->tile))) {
00923 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(ti->tile));
00924 DrawGroundSprite(DiagDirToAxis(tunnelbridge_direction) == AXIS_X ? rti->base_sprites.single_y : rti->base_sprites.single_x, PALETTE_CRASH);
00925 }
00926
00927 if (transport_type == TRANSPORT_ROAD) {
00928 RoadTypes rts = GetRoadTypes(ti->tile);
00929
00930 if (HasBit(rts, ROADTYPE_TRAM)) {
00931 static const SpriteID tunnel_sprites[2][4] = { { 28, 78, 79, 27 }, { 5, 76, 77, 4 } };
00932
00933 DrawGroundSprite(SPR_TRAMWAY_BASE + tunnel_sprites[rts - ROADTYPES_TRAM][tunnelbridge_direction], PAL_NONE);
00934
00935
00936 if (!IsInvisibilitySet(TO_CATENARY)) {
00937 catenary = true;
00938 StartSpriteCombine();
00939 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);
00940 }
00941 }
00942 } else if (HasCatenaryDrawn(GetRailType(ti->tile))) {
00943
00944 DrawCatenary(ti);
00945
00946 catenary = true;
00947 StartSpriteCombine();
00948
00949 DrawCatenaryOnTunnel(ti);
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_SNOWY_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 (_game_mode != GM_MENU && _settings_client.gui.show_track_reservation && transport_type == TRANSPORT_RAIL && GetTunnelBridgeReservation(ti->tile)) {
01008 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(ti->tile));
01009 if (HasBridgeFlatRamp(ti->tileh, DiagDirToAxis(tunnelbridge_direction))) {
01010 AddSortableSpriteToDraw(DiagDirToAxis(tunnelbridge_direction) == AXIS_X ? rti->base_sprites.single_y : rti->base_sprites.single_x, PALETTE_CRASH, ti->x, ti->y, 16, 16, 0, ti->z + 8);
01011 } else {
01012 AddSortableSpriteToDraw(rti->base_sprites.single_sloped + tunnelbridge_direction, PALETTE_CRASH, ti->x, ti->y, 16, 16, 8, ti->z);
01013 }
01014 }
01015
01016 if (transport_type == TRANSPORT_ROAD) {
01017 RoadTypes rts = GetRoadTypes(ti->tile);
01018
01019 if (HasBit(rts, ROADTYPE_TRAM)) {
01020 uint offset = tunnelbridge_direction;
01021 uint z = ti->z;
01022 if (ti->tileh != SLOPE_FLAT) {
01023 offset = (offset + 1) & 1;
01024 z += TILE_HEIGHT;
01025 } else {
01026 offset += 2;
01027 }
01028
01029 DrawBridgeTramBits(ti->x, ti->y, z, offset, HasBit(rts, ROADTYPE_ROAD), true);
01030 }
01031 EndSpriteCombine();
01032 } else if (transport_type == TRANSPORT_RAIL) {
01033 EndSpriteCombine();
01034 if (HasCatenaryDrawn(GetRailType(ti->tile))) {
01035 DrawCatenary(ti);
01036 }
01037 }
01038
01039 DrawBridgeMiddle(ti);
01040 }
01041 }
01042
01043
01061 static BridgePieces CalcBridgePiece(uint north, uint south)
01062 {
01063 if (north == 1) {
01064 return BRIDGE_PIECE_NORTH;
01065 } else if (south == 1) {
01066 return BRIDGE_PIECE_SOUTH;
01067 } else if (north < south) {
01068 return north & 1 ? BRIDGE_PIECE_INNER_SOUTH : BRIDGE_PIECE_INNER_NORTH;
01069 } else if (north > south) {
01070 return south & 1 ? BRIDGE_PIECE_INNER_NORTH : BRIDGE_PIECE_INNER_SOUTH;
01071 } else {
01072 return north & 1 ? BRIDGE_PIECE_MIDDLE_EVEN : BRIDGE_PIECE_MIDDLE_ODD;
01073 }
01074 }
01075
01076
01077 void DrawBridgeMiddle(const TileInfo *ti)
01078 {
01079
01080
01081
01082
01083
01084
01085
01086
01087
01088
01089
01090
01091
01092
01093
01094
01095
01096 static const int BRIDGE_Z_START = 3;
01097
01098 if (!IsBridgeAbove(ti->tile)) return;
01099
01100 TileIndex rampnorth = GetNorthernBridgeEnd(ti->tile);
01101 TileIndex rampsouth = GetSouthernBridgeEnd(ti->tile);
01102 TransportType transport_type = GetTunnelBridgeTransportType(rampsouth);
01103
01104 Axis axis = GetBridgeAxis(ti->tile);
01105 BridgePieces piece = CalcBridgePiece(
01106 GetTunnelBridgeLength(ti->tile, rampnorth) + 1,
01107 GetTunnelBridgeLength(ti->tile, rampsouth) + 1
01108 );
01109
01110 const PalSpriteID *psid;
01111 bool drawfarpillar;
01112 if (transport_type != TRANSPORT_WATER) {
01113 BridgeType type = GetBridgeType(rampsouth);
01114 drawfarpillar = !HasBit(GetBridgeSpec(type)->flags, 0);
01115
01116 uint base_offset;
01117 if (transport_type == TRANSPORT_RAIL) {
01118 base_offset = GetRailTypeInfo(GetRailType(rampsouth))->bridge_offset;
01119 } else {
01120 base_offset = 8;
01121 }
01122
01123 psid = base_offset + GetBridgeSpriteTable(type, piece);
01124 } else {
01125 drawfarpillar = true;
01126 psid = _aqueduct_sprites;
01127 }
01128
01129 if (axis != AXIS_X) psid += 4;
01130
01131 int x = ti->x;
01132 int y = ti->y;
01133 uint bridge_z = GetBridgeHeight(rampsouth);
01134 uint z = bridge_z - BRIDGE_Z_START;
01135
01136
01137 AddSortableSpriteToDraw(SPR_EMPTY_BOUNDING_BOX, PAL_NONE, x, y, 16, 16, 1, bridge_z - TILE_HEIGHT + BB_Z_SEPARATOR);
01138
01139
01140 if (transport_type == TRANSPORT_ROAD) StartSpriteCombine();
01141
01142
01143 if (!IsInvisibilitySet(TO_BRIDGES)) {
01144 if (axis == AXIS_X) {
01145 AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 16, 1, 0x28, z, IsTransparencySet(TO_BRIDGES), 0, 0, BRIDGE_Z_START);
01146 } else {
01147 AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 1, 16, 0x28, z, IsTransparencySet(TO_BRIDGES), 0, 0, BRIDGE_Z_START);
01148 }
01149 }
01150
01151 psid++;
01152
01153 if (transport_type == TRANSPORT_ROAD) {
01154 RoadTypes rts = GetRoadTypes(rampsouth);
01155
01156 if (HasBit(rts, ROADTYPE_TRAM)) {
01157
01158 DrawBridgeTramBits(x, y, bridge_z, axis ^ 1, HasBit(rts, ROADTYPE_ROAD), false);
01159 } else {
01160 EndSpriteCombine();
01161 StartSpriteCombine();
01162 }
01163 } else if (transport_type == TRANSPORT_RAIL) {
01164 if (HasCatenaryDrawn(GetRailType(rampsouth))) {
01165 DrawCatenaryOnBridge(ti);
01166 }
01167 }
01168
01169
01170 if (!IsInvisibilitySet(TO_BRIDGES)) {
01171 if (axis == AXIS_X) {
01172 y += 12;
01173 if (psid->sprite & SPRITE_MASK) AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 16, 4, 0x28, z, IsTransparencySet(TO_BRIDGES), 0, 3, BRIDGE_Z_START);
01174 } else {
01175 x += 12;
01176 if (psid->sprite & SPRITE_MASK) AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 4, 16, 0x28, z, IsTransparencySet(TO_BRIDGES), 3, 0, BRIDGE_Z_START);
01177 }
01178 }
01179
01180
01181 if (transport_type == TRANSPORT_ROAD) EndSpriteCombine();
01182
01183
01184 if (IsInvisibilitySet(TO_BRIDGES)) return;
01185
01186 psid++;
01187 if (ti->z + 5 == z) {
01188
01189 if (psid->sprite != 0) {
01190 SpriteID image = psid->sprite;
01191 SpriteID pal = psid->pal;
01192 if (IsTransparencySet(TO_BRIDGES)) {
01193 SetBit(image, PALETTE_MODIFIER_TRANSPARENT);
01194 pal = PALETTE_TO_TRANSPARENT;
01195 }
01196
01197 DrawGroundSpriteAt(image, pal, x, y, z);
01198 }
01199 } else if (_settings_client.gui.bridge_pillars) {
01200
01201 DrawBridgePillars(psid, ti, axis, drawfarpillar, x, y, z);
01202 }
01203 }
01204
01205
01206 static uint GetSlopeZ_TunnelBridge(TileIndex tile, uint x, uint y)
01207 {
01208 uint z;
01209 Slope tileh = GetTileSlope(tile, &z);
01210
01211 x &= 0xF;
01212 y &= 0xF;
01213
01214 if (IsTunnel(tile)) {
01215 uint pos = (DiagDirToAxis(GetTunnelBridgeDirection(tile)) == AXIS_X ? y : x);
01216
01217
01218 if (5 <= pos && pos <= 10) return z;
01219 } else {
01220 DiagDirection dir = GetTunnelBridgeDirection(tile);
01221 uint pos = (DiagDirToAxis(dir) == AXIS_X ? y : x);
01222
01223 z += ApplyFoundationToSlope(GetBridgeFoundation(tileh, DiagDirToAxis(dir)), &tileh);
01224
01225
01226 if (5 <= pos && pos <= 10) {
01227 uint delta;
01228
01229 if (tileh != SLOPE_FLAT) return z + TILE_HEIGHT;
01230
01231 switch (dir) {
01232 default: NOT_REACHED();
01233 case DIAGDIR_NE: delta = (TILE_SIZE - 1 - x) / 2; break;
01234 case DIAGDIR_SE: delta = y / 2; break;
01235 case DIAGDIR_SW: delta = x / 2; break;
01236 case DIAGDIR_NW: delta = (TILE_SIZE - 1 - y) / 2; break;
01237 }
01238 return z + 1 + delta;
01239 }
01240 }
01241
01242 return z + GetPartialZ(x, y, tileh);
01243 }
01244
01245 static Foundation GetFoundation_TunnelBridge(TileIndex tile, Slope tileh)
01246 {
01247 return IsTunnel(tile) ? FOUNDATION_NONE : GetBridgeFoundation(tileh, DiagDirToAxis(GetTunnelBridgeDirection(tile)));
01248 }
01249
01250
01251 static void GetAcceptedCargo_TunnelBridge(TileIndex tile, AcceptedCargo ac)
01252 {
01253
01254 }
01255
01256 static void GetTileDesc_TunnelBridge(TileIndex tile, TileDesc *td)
01257 {
01258 TransportType tt = GetTunnelBridgeTransportType(tile);
01259
01260 if (IsTunnel(tile)) {
01261 td->str = (tt == TRANSPORT_RAIL) ? STR_5017_RAILROAD_TUNNEL : STR_5018_ROAD_TUNNEL;
01262 } else {
01263 td->str = (tt == TRANSPORT_WATER) ? STR_AQUEDUCT : GetBridgeSpec(GetBridgeType(tile))->transport_name[tt];
01264 }
01265 td->owner[0] = GetTileOwner(tile);
01266
01267 Owner road_owner = INVALID_OWNER;
01268 Owner tram_owner = INVALID_OWNER;
01269 RoadTypes rts = GetRoadTypes(tile);
01270 if (HasBit(rts, ROADTYPE_ROAD)) road_owner = GetRoadOwner(tile, ROADTYPE_ROAD);
01271 if (HasBit(rts, ROADTYPE_TRAM)) tram_owner = GetRoadOwner(tile, ROADTYPE_TRAM);
01272
01273
01274 if ((tram_owner != INVALID_OWNER && tram_owner != td->owner[0]) ||
01275 (road_owner != INVALID_OWNER && road_owner != td->owner[0])) {
01276 uint i = 1;
01277 if (road_owner != INVALID_OWNER) {
01278 td->owner_type[i] = STR_ROAD_OWNER;
01279 td->owner[i] = road_owner;
01280 i++;
01281 }
01282 if (tram_owner != INVALID_OWNER) {
01283 td->owner_type[i] = STR_TRAM_OWNER;
01284 td->owner[i] = tram_owner;
01285 }
01286 }
01287 }
01288
01289
01290 static void TileLoop_TunnelBridge(TileIndex tile)
01291 {
01292 bool snow_or_desert = HasTunnelBridgeSnowOrDesert(tile);
01293 switch (_settings_game.game_creation.landscape) {
01294 case LT_ARCTIC:
01295 if (snow_or_desert != (GetTileZ(tile) > GetSnowLine())) {
01296 SetTunnelBridgeSnowOrDesert(tile, !snow_or_desert);
01297 MarkTileDirtyByTile(tile);
01298 }
01299 break;
01300
01301 case LT_TROPIC:
01302 if (GetTropicZone(tile) == TROPICZONE_DESERT && !snow_or_desert) {
01303 SetTunnelBridgeSnowOrDesert(tile, true);
01304 MarkTileDirtyByTile(tile);
01305 }
01306 break;
01307
01308 default:
01309 break;
01310 }
01311 }
01312
01313 static TrackStatus GetTileTrackStatus_TunnelBridge(TileIndex tile, TransportType mode, uint sub_mode, DiagDirection side)
01314 {
01315 TransportType transport_type = GetTunnelBridgeTransportType(tile);
01316 if (transport_type != mode || (transport_type == TRANSPORT_ROAD && (GetRoadTypes(tile) & sub_mode) == 0)) return 0;
01317
01318 DiagDirection dir = GetTunnelBridgeDirection(tile);
01319 if (side != INVALID_DIAGDIR && side != ReverseDiagDir(dir)) return 0;
01320 return CombineTrackStatus(TrackBitsToTrackdirBits(DiagDirToDiagTrackBits(dir)), TRACKDIR_BIT_NONE);
01321 }
01322
01323 static void ChangeTileOwner_TunnelBridge(TileIndex tile, Owner old_owner, Owner new_owner)
01324 {
01325 for (RoadType rt = ROADTYPE_ROAD; rt < ROADTYPE_END; rt++) {
01326
01327 if (GetRoadOwner(tile, rt) == old_owner) {
01328 SetRoadOwner(tile, rt, new_owner == INVALID_OWNER ? OWNER_NONE : new_owner);
01329 }
01330 }
01331
01332 if (!IsTileOwner(tile, old_owner)) return;
01333
01334 if (new_owner != INVALID_OWNER) {
01335 SetTileOwner(tile, new_owner);
01336 } else {
01337 if (CmdFailed(DoCommand(tile, 0, 0, DC_EXEC | DC_BANKRUPT, CMD_LANDSCAPE_CLEAR))) {
01338
01339
01340
01341
01342 assert(GetTunnelBridgeTransportType(tile) != TRANSPORT_RAIL);
01343 SetTileOwner(tile, OWNER_NONE);
01344 }
01345 }
01346 }
01347
01348
01349 static const byte _tunnel_fractcoord_1[4] = {0x8E, 0x18, 0x81, 0xE8};
01350 static const byte _tunnel_fractcoord_2[4] = {0x81, 0x98, 0x87, 0x38};
01351 static const byte _tunnel_fractcoord_3[4] = {0x82, 0x88, 0x86, 0x48};
01352 static const byte _exit_tunnel_track[4] = {1, 2, 1, 2};
01353
01355 static const Trackdir _road_exit_tunnel_state[DIAGDIR_END] = {
01356 TRACKDIR_X_SW, TRACKDIR_Y_NW, TRACKDIR_X_NE, TRACKDIR_Y_SE
01357 };
01358 static const byte _road_exit_tunnel_frame[4] = {2, 7, 9, 4};
01359
01360 static const byte _tunnel_fractcoord_4[4] = {0x52, 0x85, 0x98, 0x29};
01361 static const byte _tunnel_fractcoord_5[4] = {0x92, 0x89, 0x58, 0x25};
01362 static const byte _tunnel_fractcoord_6[4] = {0x92, 0x89, 0x56, 0x45};
01363 static const byte _tunnel_fractcoord_7[4] = {0x52, 0x85, 0x96, 0x49};
01364
01365 static VehicleEnterTileStatus VehicleEnter_TunnelBridge(Vehicle *v, TileIndex tile, int x, int y)
01366 {
01367 int z = GetSlopeZ(x, y) - v->z_pos;
01368
01369 if (abs(z) > 2) return VETSB_CANNOT_ENTER;
01370 const DiagDirection dir = GetTunnelBridgeDirection(tile);
01371
01372 if (IsTunnel(tile)) {
01373 byte fc;
01374 DiagDirection vdir;
01375
01376 if (v->type == VEH_TRAIN) {
01377 fc = (x & 0xF) + (y << 4);
01378
01379 vdir = DirToDiagDir(v->direction);
01380
01381 if (v->u.rail.track != TRACK_BIT_WORMHOLE && dir == vdir) {
01382 if (IsFrontEngine(v) && fc == _tunnel_fractcoord_1[dir]) {
01383 if (!PlayVehicleSound(v, VSE_TUNNEL) && RailVehInfo(v->engine_type)->engclass == 0) {
01384 SndPlayVehicleFx(SND_05_TRAIN_THROUGH_TUNNEL, v);
01385 }
01386 return VETSB_CONTINUE;
01387 }
01388 if (fc == _tunnel_fractcoord_2[dir]) {
01389 v->tile = tile;
01390 v->u.rail.track = TRACK_BIT_WORMHOLE;
01391 v->vehstatus |= VS_HIDDEN;
01392 return VETSB_ENTERED_WORMHOLE;
01393 }
01394 }
01395
01396 if (dir == ReverseDiagDir(vdir) && fc == _tunnel_fractcoord_3[dir] && z == 0) {
01397
01398 v->tile = tile;
01399 v->u.rail.track = (TrackBits)_exit_tunnel_track[dir];
01400 assert(v->u.rail.track);
01401 v->vehstatus &= ~VS_HIDDEN;
01402 return VETSB_ENTERED_WORMHOLE;
01403 }
01404 } else if (v->type == VEH_ROAD) {
01405 fc = (x & 0xF) + (y << 4);
01406 vdir = DirToDiagDir(v->direction);
01407
01408
01409 if (v->u.road.state != RVSB_WORMHOLE && dir == vdir) {
01410 if (fc == _tunnel_fractcoord_4[dir] ||
01411 fc == _tunnel_fractcoord_5[dir]) {
01412 v->tile = tile;
01413 v->u.road.state = RVSB_WORMHOLE;
01414 v->vehstatus |= VS_HIDDEN;
01415 return VETSB_ENTERED_WORMHOLE;
01416 } else {
01417 return VETSB_CONTINUE;
01418 }
01419 }
01420
01421 if (dir == ReverseDiagDir(vdir) && (
01422
01423 fc == _tunnel_fractcoord_6[dir] ||
01424 fc == _tunnel_fractcoord_7[dir]
01425 ) &&
01426 z == 0) {
01427 v->tile = tile;
01428 v->u.road.state = _road_exit_tunnel_state[dir];
01429 v->u.road.frame = _road_exit_tunnel_frame[dir];
01430 v->vehstatus &= ~VS_HIDDEN;
01431 return VETSB_ENTERED_WORMHOLE;
01432 }
01433 }
01434 } else {
01435
01436 if (v->IsPrimaryVehicle() && v->type != VEH_SHIP) {
01437
01438 uint16 spd = GetBridgeSpec(GetBridgeType(tile))->speed;
01439
01440 if (v->type == VEH_ROAD) spd *= 2;
01441 if (v->cur_speed > spd) v->cur_speed = spd;
01442 }
01443
01444 if (DirToDiagDir(v->direction) == dir) {
01445 switch (dir) {
01446 default: NOT_REACHED();
01447 case DIAGDIR_NE: if ((x & 0xF) != 0) return VETSB_CONTINUE; break;
01448 case DIAGDIR_SE: if ((y & 0xF) != TILE_SIZE - 1) return VETSB_CONTINUE; break;
01449 case DIAGDIR_SW: if ((x & 0xF) != TILE_SIZE - 1) return VETSB_CONTINUE; break;
01450 case DIAGDIR_NW: if ((y & 0xF) != 0) return VETSB_CONTINUE; break;
01451 }
01452 switch (v->type) {
01453 case VEH_TRAIN:
01454 v->u.rail.track = TRACK_BIT_WORMHOLE;
01455 ClrBit(v->u.rail.flags, VRF_GOINGUP);
01456 ClrBit(v->u.rail.flags, VRF_GOINGDOWN);
01457 break;
01458
01459 case VEH_ROAD:
01460 v->u.road.state = RVSB_WORMHOLE;
01461 break;
01462
01463 case VEH_SHIP:
01464 v->u.ship.state = TRACK_BIT_WORMHOLE;
01465 break;
01466
01467 default: NOT_REACHED();
01468 }
01469 return VETSB_ENTERED_WORMHOLE;
01470 } else if (DirToDiagDir(v->direction) == ReverseDiagDir(dir)) {
01471 v->tile = tile;
01472 switch (v->type) {
01473 case VEH_TRAIN:
01474 if (v->u.rail.track == TRACK_BIT_WORMHOLE) {
01475 v->u.rail.track = (DiagDirToAxis(dir) == AXIS_X ? TRACK_BIT_X : TRACK_BIT_Y);
01476 return VETSB_ENTERED_WORMHOLE;
01477 }
01478 break;
01479
01480 case VEH_ROAD:
01481 if (v->u.road.state == RVSB_WORMHOLE) {
01482 v->u.road.state = _road_exit_tunnel_state[dir];
01483 v->u.road.frame = 0;
01484 return VETSB_ENTERED_WORMHOLE;
01485 }
01486 break;
01487
01488 case VEH_SHIP:
01489 if (v->u.ship.state == TRACK_BIT_WORMHOLE) {
01490 v->u.ship.state = (DiagDirToAxis(dir) == AXIS_X ? TRACK_BIT_X : TRACK_BIT_Y);
01491 return VETSB_ENTERED_WORMHOLE;
01492 }
01493 break;
01494
01495 default: NOT_REACHED();
01496 }
01497 }
01498 }
01499 return VETSB_CONTINUE;
01500 }
01501
01502 static CommandCost TerraformTile_TunnelBridge(TileIndex tile, DoCommandFlag flags, uint z_new, Slope tileh_new)
01503 {
01504 if (_settings_game.construction.build_on_slopes && AutoslopeEnabled() && IsBridge(tile) && GetTunnelBridgeTransportType(tile) != TRANSPORT_WATER) {
01505 DiagDirection direction = GetTunnelBridgeDirection(tile);
01506 Axis axis = DiagDirToAxis(direction);
01507 CommandCost res;
01508 uint z_old;
01509 Slope tileh_old = GetTileSlope(tile, &z_old);
01510
01511
01512 if ((direction == DIAGDIR_NW) || (direction == DIAGDIR_NE)) {
01513 CheckBridgeSlopeSouth(axis, &tileh_old, &z_old);
01514 res = CheckBridgeSlopeSouth(axis, &tileh_new, &z_new);
01515 } else {
01516 CheckBridgeSlopeNorth(axis, &tileh_old, &z_old);
01517 res = CheckBridgeSlopeNorth(axis, &tileh_new, &z_new);
01518 }
01519
01520
01521 if (!CmdFailed(res) && (z_old == z_new) && (tileh_old == tileh_new)) return CommandCost(EXPENSES_CONSTRUCTION, _price.terraform);
01522 }
01523
01524 return DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
01525 }
01526
01527 extern const TileTypeProcs _tile_type_tunnelbridge_procs = {
01528 DrawTile_TunnelBridge,
01529 GetSlopeZ_TunnelBridge,
01530 ClearTile_TunnelBridge,
01531 GetAcceptedCargo_TunnelBridge,
01532 GetTileDesc_TunnelBridge,
01533 GetTileTrackStatus_TunnelBridge,
01534 NULL,
01535 NULL,
01536 TileLoop_TunnelBridge,
01537 ChangeTileOwner_TunnelBridge,
01538 NULL,
01539 VehicleEnter_TunnelBridge,
01540 GetFoundation_TunnelBridge,
01541 TerraformTile_TunnelBridge,
01542 };