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 }
00252
00253
00254 tile_start = TileXY(x, y);
00255 tile_end = TileXY(sx, sy);
00256 if (IsWaterTile(tile_start) || IsWaterTile(tile_end)) {
00257 return_cmd_error(STR_02A0_ENDS_OF_BRIDGE_MUST_BOTH);
00258 }
00259
00260 tileh_start = GetTileSlope(tile_start, &z_start);
00261 tileh_end = GetTileSlope(tile_end, &z_end);
00262
00263 CommandCost terraform_cost_north = CheckBridgeSlopeNorth(direction, &tileh_start, &z_start);
00264 CommandCost terraform_cost_south = CheckBridgeSlopeSouth(direction, &tileh_end, &z_end);
00265
00266 if (z_start != z_end) return_cmd_error(STR_BRIDGEHEADS_NOT_SAME_HEIGHT);
00267
00268 if (IsBridgeTile(tile_start) && IsBridgeTile(tile_end) &&
00269 GetOtherBridgeEnd(tile_start) == tile_end &&
00270 GetTunnelBridgeTransportType(tile_start) == transport_type) {
00271
00272
00273
00274 if (transport_type == TRANSPORT_RAIL && GetRailType(tile_start) != railtype) {
00275 return_cmd_error(STR_5007_MUST_DEMOLISH_BRIDGE_FIRST);
00276 }
00277
00278
00279 if (!(flags & DC_QUERY_COST) && IsTileOwner(tile_start, OWNER_TOWN) &&
00280 GetBridgeSpec(bridge_type)->speed < GetBridgeSpec(GetBridgeType(tile_start))->speed) {
00281 Town *t = ClosestTownFromTile(tile_start, UINT_MAX);
00282
00283 if (t == NULL) {
00284 return CMD_ERROR;
00285 } else {
00286 SetDParam(0, t->index);
00287 return_cmd_error(STR_2009_LOCAL_AUTHORITY_REFUSES);
00288 }
00289 }
00290
00291
00292 if (!(flags & DC_QUERY_COST) && bridge_type == GetBridgeType(tile_start)) {
00293 return_cmd_error(STR_1007_ALREADY_BUILT);
00294 }
00295
00296
00297 if (!IsTileOwner(tile_start, _current_company) && !IsTileOwner(tile_start, OWNER_TOWN)) {
00298 return_cmd_error(STR_1024_AREA_IS_OWNED_BY_ANOTHER);
00299 }
00300
00301 cost.AddCost((bridge_len + 1) * _price.clear_bridge);
00302 replace_bridge = true;
00303 replaced_bridge_type = GetBridgeType(tile_start);
00304
00305
00306 roadtypes |= GetRoadTypes(tile_start);
00307 } else {
00308
00309
00310 bool allow_on_slopes = (_settings_game.construction.build_on_slopes && transport_type != TRANSPORT_WATER);
00311
00312
00313 ret = DoCommand(tile_start, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00314 if (CmdFailed(ret)) return ret;
00315 cost = ret;
00316
00317 if (CmdFailed(terraform_cost_north) || (terraform_cost_north.GetCost() != 0 && !allow_on_slopes))
00318 return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION);
00319 cost.AddCost(terraform_cost_north);
00320
00321
00322 ret = DoCommand(tile_end, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00323 if (CmdFailed(ret)) return ret;
00324 cost.AddCost(ret);
00325
00326
00327 if (CmdFailed(terraform_cost_south) || (terraform_cost_south.GetCost() != 0 && !allow_on_slopes))
00328 return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION);
00329 cost.AddCost(terraform_cost_south);
00330
00331 if (transport_type == TRANSPORT_WATER && (tileh_start == SLOPE_FLAT || tileh_end == SLOPE_FLAT)) return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION);
00332 }
00333
00334 if (!replace_bridge) {
00335 TileIndex Heads[] = {tile_start, tile_end};
00336 int i;
00337
00338 for (i = 0; i < 2; i++) {
00339 if (MayHaveBridgeAbove(Heads[i])) {
00340 if (IsBridgeAbove(Heads[i])) {
00341 TileIndex north_head = GetNorthernBridgeEnd(Heads[i]);
00342
00343 if (direction == GetBridgeAxis(Heads[i])) return_cmd_error(STR_5007_MUST_DEMOLISH_BRIDGE_FIRST);
00344
00345 if (z_start + TILE_HEIGHT == GetBridgeHeight(north_head)) {
00346 return_cmd_error(STR_5007_MUST_DEMOLISH_BRIDGE_FIRST);
00347 }
00348 }
00349 }
00350 }
00351 }
00352
00353
00354 if (flags & DC_EXEC) {
00355 DiagDirection dir = AxisToDiagDir(direction);
00356 Owner owner = replace_bridge ? GetTileOwner(tile_start) : _current_company;
00357
00358 switch (transport_type) {
00359 case TRANSPORT_RAIL:
00360 MakeRailBridgeRamp(tile_start, owner, bridge_type, dir, railtype);
00361 MakeRailBridgeRamp(tile_end, owner, bridge_type, ReverseDiagDir(dir), railtype);
00362 break;
00363
00364 case TRANSPORT_ROAD:
00365 MakeRoadBridgeRamp(tile_start, owner, bridge_type, dir, roadtypes);
00366 MakeRoadBridgeRamp(tile_end, owner, bridge_type, ReverseDiagDir(dir), roadtypes);
00367 break;
00368
00369 case TRANSPORT_WATER:
00370 MakeAqueductBridgeRamp(tile_start, owner, dir);
00371 MakeAqueductBridgeRamp(tile_end, owner, ReverseDiagDir(dir));
00372 break;
00373
00374 default:
00375 NOT_REACHED();
00376 break;
00377 }
00378 MarkTileDirtyByTile(tile_start);
00379 MarkTileDirtyByTile(tile_end);
00380 }
00381
00382 delta = (direction == AXIS_X ? TileDiffXY(1, 0) : TileDiffXY(0, 1));
00383 for (tile = tile_start + delta; tile != tile_end; tile += delta) {
00384 if (GetTileMaxZ(tile) > z_start) return_cmd_error(STR_BRIDGE_TOO_LOW_FOR_TERRAIN);
00385
00386 if (MayHaveBridgeAbove(tile) && IsBridgeAbove(tile) && !replace_bridge) {
00387
00388 return_cmd_error(STR_5007_MUST_DEMOLISH_BRIDGE_FIRST);
00389 }
00390
00391 switch (GetTileType(tile)) {
00392 case MP_WATER:
00393 if (!IsWater(tile) && !IsCoast(tile)) goto not_valid_below;
00394 break;
00395
00396 case MP_RAILWAY:
00397 if (!IsPlainRail(tile)) goto not_valid_below;
00398 break;
00399
00400 case MP_ROAD:
00401 if (IsRoadDepot(tile)) goto not_valid_below;
00402 break;
00403
00404 case MP_TUNNELBRIDGE:
00405 if (IsTunnel(tile)) break;
00406 if (replace_bridge) break;
00407 if (direction == DiagDirToAxis(GetTunnelBridgeDirection(tile))) goto not_valid_below;
00408 if (z_start < GetBridgeHeight(tile)) goto not_valid_below;
00409 break;
00410
00411 case MP_UNMOVABLE:
00412 if (!IsOwnedLand(tile)) goto not_valid_below;
00413 break;
00414
00415 case MP_CLEAR:
00416 break;
00417
00418 default:
00419 not_valid_below:;
00420
00421 ret = DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00422 if (CmdFailed(ret)) return ret;
00423 cost.AddCost(ret);
00424 break;
00425 }
00426
00427 if (flags & DC_EXEC) {
00428 SetBridgeMiddle(tile, direction);
00429 MarkTileDirtyByTile(tile);
00430 }
00431 }
00432
00433 if (flags & DC_EXEC && transport_type == TRANSPORT_RAIL) {
00434 Track track = AxisToTrack(direction);
00435 AddSideToSignalBuffer(tile_start, INVALID_DIAGDIR, _current_company);
00436 YapfNotifyTrackLayoutChange(tile_start, track);
00437 }
00438
00439
00440
00441
00442
00443 if (!(flags & DC_QUERY_COST) || (IsValidCompanyID(_current_company) && GetCompany(_current_company)->is_ai)) {
00444 bridge_len += 2;
00445
00446 if (IsValidCompanyID(_current_company))
00447 bridge_len = CalcBridgeLenCostFactor(bridge_len);
00448
00449 cost.AddCost((int64)bridge_len * _price.build_bridge * GetBridgeSpec(bridge_type)->price >> 8);
00450
00451
00452 if (transport_type == TRANSPORT_WATER) cost.AddCost((int64)bridge_len * _price.clear_water);
00453 }
00454
00455 return cost;
00456 }
00457
00458
00465 CommandCost CmdBuildTunnel(TileIndex start_tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00466 {
00467 TileIndexDiff delta;
00468 TileIndex end_tile;
00469 DiagDirection direction;
00470 Slope start_tileh;
00471 Slope end_tileh;
00472 TransportType transport_type = (TransportType)GB(p1, 9, 1);
00473 uint start_z;
00474 uint end_z;
00475 CommandCost cost(EXPENSES_CONSTRUCTION);
00476 CommandCost ret;
00477
00478 _build_tunnel_endtile = 0;
00479 if (transport_type == TRANSPORT_RAIL) {
00480 if (!ValParamRailtype((RailType)p1)) return CMD_ERROR;
00481 } else {
00482 const RoadTypes rts = (RoadTypes)GB(p1, 0, 2);
00483 if (!AreValidRoadTypes(rts) || !HasRoadTypesAvail(_current_company, rts)) return CMD_ERROR;
00484 }
00485
00486 start_tileh = GetTileSlope(start_tile, &start_z);
00487 direction = GetInclinedSlopeDirection(start_tileh);
00488 if (direction == INVALID_DIAGDIR) return_cmd_error(STR_500B_SITE_UNSUITABLE_FOR_TUNNEL);
00489
00490 if (IsWaterTile(start_tile)) return_cmd_error(STR_3807_CAN_T_BUILD_ON_WATER);
00491
00492 ret = DoCommand(start_tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00493 if (CmdFailed(ret)) return ret;
00494
00495
00496
00497
00498
00499
00500 delta = TileOffsByDiagDir(direction);
00501 DiagDirection tunnel_in_way_dir;
00502 if (DiagDirToAxis(direction) == AXIS_Y) {
00503 tunnel_in_way_dir = (TileX(start_tile) < (MapMaxX() / 2)) ? DIAGDIR_SW : DIAGDIR_NE;
00504 } else {
00505 tunnel_in_way_dir = (TileY(start_tile) < (MapMaxX() / 2)) ? DIAGDIR_SE : DIAGDIR_NW;
00506 }
00507
00508 end_tile = start_tile;
00509
00511 int tiles_coef = 3;
00513 int tiles = 0;
00515 int tiles_bump = 25;
00516
00517 for (;;) {
00518 end_tile += delta;
00519 if (!IsValidTile(end_tile)) return_cmd_error(STR_TUNNEL_THROUGH_MAP_BORDER);
00520 end_tileh = GetTileSlope(end_tile, &end_z);
00521
00522 if (start_z == end_z) break;
00523
00524 if (!_cheats.crossing_tunnels.value && IsTunnelInWayDir(end_tile, start_z, tunnel_in_way_dir)) {
00525 return_cmd_error(STR_5003_ANOTHER_TUNNEL_IN_THE_WAY);
00526 }
00527
00528 tiles++;
00529 if (tiles == tiles_bump) {
00530 tiles_coef++;
00531 tiles_bump *= 2;
00532 }
00533
00534 cost.AddCost(_price.build_tunnel);
00535 cost.AddCost(cost.GetCost() >> tiles_coef);
00536 }
00537
00538
00539 cost.AddCost(_price.build_tunnel);
00540 cost.AddCost(ret);
00541
00542
00543 _build_tunnel_endtile = end_tile;
00544
00545 if (IsWaterTile(end_tile)) return_cmd_error(STR_3807_CAN_T_BUILD_ON_WATER);
00546
00547
00548 if (end_tileh != ComplementSlope(start_tileh)) {
00549
00550
00551
00552
00553 ret = DoCommand(end_tile, 0, 0, DC_AUTO, CMD_LANDSCAPE_CLEAR);
00554 if (CmdFailed(ret)) return_cmd_error(STR_5005_UNABLE_TO_EXCAVATE_LAND);
00555
00556 ret = DoCommand(end_tile, end_tileh & start_tileh, 0, flags, CMD_TERRAFORM_LAND);
00557 if (CmdFailed(ret)) return_cmd_error(STR_5005_UNABLE_TO_EXCAVATE_LAND);
00558 } else {
00559 ret = DoCommand(end_tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00560 if (CmdFailed(ret)) return ret;
00561 }
00562 cost.AddCost(_price.build_tunnel);
00563 cost.AddCost(ret);
00564
00565 if (flags & DC_EXEC) {
00566 if (transport_type == TRANSPORT_RAIL) {
00567 MakeRailTunnel(start_tile, _current_company, direction, (RailType)GB(p1, 0, 4));
00568 MakeRailTunnel(end_tile, _current_company, ReverseDiagDir(direction), (RailType)GB(p1, 0, 4));
00569 AddSideToSignalBuffer(start_tile, INVALID_DIAGDIR, _current_company);
00570 YapfNotifyTrackLayoutChange(start_tile, DiagDirToDiagTrack(direction));
00571 } else {
00572 MakeRoadTunnel(start_tile, _current_company, direction, (RoadTypes)GB(p1, 0, 2));
00573 MakeRoadTunnel(end_tile, _current_company, ReverseDiagDir(direction), (RoadTypes)GB(p1, 0, 2));
00574 }
00575 }
00576
00577 return cost;
00578 }
00579
00580
00581 static inline bool CheckAllowRemoveTunnelBridge(TileIndex tile)
00582 {
00583
00584 if (_current_company == OWNER_WATER || _game_mode == GM_EDITOR) return true;
00585
00586 switch (GetTunnelBridgeTransportType(tile)) {
00587 case TRANSPORT_ROAD: {
00588 RoadTypes rts = GetRoadTypes(tile);
00589 Owner road_owner = _current_company;
00590 Owner tram_owner = _current_company;
00591
00592 if (HasBit(rts, ROADTYPE_ROAD)) road_owner = GetRoadOwner(tile, ROADTYPE_ROAD);
00593 if (HasBit(rts, ROADTYPE_TRAM)) tram_owner = GetRoadOwner(tile, ROADTYPE_TRAM);
00594
00595
00596 if (road_owner == OWNER_TOWN && !(_settings_game.construction.extra_dynamite || _cheats.magic_bulldozer.value)) return CheckTileOwnership(tile);
00597 if (road_owner == OWNER_NONE || road_owner == OWNER_TOWN) road_owner = _current_company;
00598 if (tram_owner == OWNER_NONE) tram_owner = _current_company;
00599
00600 return CheckOwnership(road_owner) && CheckOwnership(tram_owner);
00601 }
00602
00603 case TRANSPORT_RAIL:
00604 case TRANSPORT_WATER:
00605 return CheckOwnership(GetTileOwner(tile));
00606
00607 default: NOT_REACHED();
00608 }
00609 }
00610
00611 static CommandCost DoClearTunnel(TileIndex tile, DoCommandFlag flags)
00612 {
00613 Town *t = NULL;
00614 TileIndex endtile;
00615
00616 if (!CheckAllowRemoveTunnelBridge(tile)) return CMD_ERROR;
00617
00618 endtile = GetOtherTunnelEnd(tile);
00619
00620 if (HasVehicleOnTunnelBridge(tile, endtile)) return CMD_ERROR;
00621
00622 _build_tunnel_endtile = endtile;
00623
00624 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00625 t = ClosestTownFromTile(tile, UINT_MAX);
00626
00627
00628
00629 if (!CheckforTownRating(flags, t, TUNNELBRIDGE_REMOVE)) {
00630 SetDParam(0, t->index);
00631 return_cmd_error(STR_2009_LOCAL_AUTHORITY_REFUSES);
00632 }
00633 }
00634
00635
00636
00637 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00638 ChangeTownRating(t, RATING_TUNNEL_BRIDGE_DOWN_STEP, RATING_TUNNEL_BRIDGE_MINIMUM, flags);
00639 }
00640
00641 if (flags & DC_EXEC) {
00642 if (GetTunnelBridgeTransportType(tile) == TRANSPORT_RAIL) {
00643
00644 DiagDirection dir = GetTunnelBridgeDirection(tile);
00645 Track track = DiagDirToDiagTrack(dir);
00646 Owner owner = GetTileOwner(tile);
00647
00648 Vehicle *v = NULL;
00649 if (GetTunnelBridgeReservation(tile)) {
00650 v = GetTrainForReservation(tile, track);
00651 if (v != NULL) FreeTrainTrackReservation(v);
00652 }
00653
00654 DoClearSquare(tile);
00655 DoClearSquare(endtile);
00656
00657
00658 AddSideToSignalBuffer(tile, ReverseDiagDir(dir), owner);
00659 AddSideToSignalBuffer(endtile, dir, owner);
00660
00661 YapfNotifyTrackLayoutChange(tile, track);
00662 YapfNotifyTrackLayoutChange(endtile, track);
00663
00664 if (v != NULL) TryPathReserve(v);
00665 } else {
00666 DoClearSquare(tile);
00667 DoClearSquare(endtile);
00668 }
00669 }
00670 return CommandCost(EXPENSES_CONSTRUCTION, _price.clear_tunnel * (GetTunnelBridgeLength(tile, endtile) + 2));
00671 }
00672
00673
00674 static CommandCost DoClearBridge(TileIndex tile, DoCommandFlag flags)
00675 {
00676 DiagDirection direction;
00677 TileIndexDiff delta;
00678 TileIndex endtile;
00679 Town *t = NULL;
00680
00681 if (!CheckAllowRemoveTunnelBridge(tile)) return CMD_ERROR;
00682
00683 endtile = GetOtherBridgeEnd(tile);
00684
00685 if (HasVehicleOnTunnelBridge(tile, endtile)) return CMD_ERROR;
00686
00687 direction = GetTunnelBridgeDirection(tile);
00688 delta = TileOffsByDiagDir(direction);
00689
00690 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00691 t = ClosestTownFromTile(tile, UINT_MAX);
00692
00693
00694
00695 if (!CheckforTownRating(flags, t, TUNNELBRIDGE_REMOVE)) {
00696 SetDParam(0, t->index);
00697 return_cmd_error(STR_2009_LOCAL_AUTHORITY_REFUSES);
00698 }
00699 }
00700
00701
00702
00703 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00704 ChangeTownRating(t, RATING_TUNNEL_BRIDGE_DOWN_STEP, RATING_TUNNEL_BRIDGE_MINIMUM, flags);
00705 }
00706
00707 if (flags & DC_EXEC) {
00708
00709 bool rail = GetTunnelBridgeTransportType(tile) == TRANSPORT_RAIL;
00710 Owner owner = GetTileOwner(tile);
00711 uint height = GetBridgeHeight(tile);
00712 Vehicle *v = NULL;
00713
00714 if (rail && GetTunnelBridgeReservation(tile)) {
00715 v = GetTrainForReservation(tile, DiagDirToDiagTrack(direction));
00716 if (v != NULL) FreeTrainTrackReservation(v);
00717 }
00718
00719 DoClearSquare(tile);
00720 DoClearSquare(endtile);
00721 for (TileIndex c = tile + delta; c != endtile; c += delta) {
00722
00723 if (IsNormalRoadTile(c) && GetRoadside(c) == ROADSIDE_TREES) {
00724 uint minz = GetTileMaxZ(c) + 3 * TILE_HEIGHT;
00725 if (height < minz) SetRoadside(c, ROADSIDE_PAVED);
00726 }
00727 ClearBridgeMiddle(c);
00728 MarkTileDirtyByTile(c);
00729 }
00730
00731 if (rail) {
00732
00733 AddSideToSignalBuffer(tile, ReverseDiagDir(direction), owner);
00734 AddSideToSignalBuffer(endtile, direction, owner);
00735
00736 Track track = DiagDirToDiagTrack(direction);
00737 YapfNotifyTrackLayoutChange(tile, track);
00738 YapfNotifyTrackLayoutChange(endtile, track);
00739
00740 if (v != NULL) TryPathReserve(v, true);
00741 }
00742 }
00743
00744 return CommandCost(EXPENSES_CONSTRUCTION, (GetTunnelBridgeLength(tile, endtile) + 2) * _price.clear_bridge);
00745 }
00746
00747 static CommandCost ClearTile_TunnelBridge(TileIndex tile, DoCommandFlag flags)
00748 {
00749 if (IsTunnel(tile)) {
00750 if (flags & DC_AUTO) return_cmd_error(STR_5006_MUST_DEMOLISH_TUNNEL_FIRST);
00751 return DoClearTunnel(tile, flags);
00752 } else {
00753 if (flags & DC_AUTO) return_cmd_error(STR_5007_MUST_DEMOLISH_BRIDGE_FIRST);
00754 return DoClearBridge(tile, flags);
00755 }
00756
00757 return CMD_ERROR;
00758 }
00759
00771 static void DrawBridgePillars(const PalSpriteID *psid, const TileInfo *ti, Axis axis, bool drawfarpillar, int x, int y, int z_bridge)
00772 {
00773
00774 if (IsInvisibilitySet(TO_BRIDGES)) return;
00775
00776 SpriteID image = psid->sprite;
00777
00778 if (image != 0) {
00779
00780
00781
00782
00783
00784
00785
00786
00787
00788 bool side = HasBit(image, 0);
00789
00790
00791 DiagDirection dir = AxisToDiagDir(axis);
00792 if (side != (axis == AXIS_Y)) dir = ReverseDiagDir(dir);
00793
00794
00795 int front_height = ti->z;
00796 int back_height = ti->z;
00797 GetSlopeZOnEdge(ti->tileh, dir, &front_height, &back_height);
00798
00799
00800 int w = (axis == AXIS_X ? 16 : 2);
00801 int h = (axis == AXIS_X ? 2 : 16);
00802
00803 int x_back = x - (axis == AXIS_X ? 0 : 9);
00804 int y_back = y - (axis == AXIS_X ? 9 : 0);
00805
00806 for (int cur_z = z_bridge; cur_z >= front_height || cur_z >= back_height; cur_z -= TILE_HEIGHT) {
00807
00808 if (cur_z >= front_height) {
00809 AddSortableSpriteToDraw(image, psid->pal, x, y, w, h, BB_HEIGHT_UNDER_BRIDGE - 5, cur_z, IsTransparencySet(TO_BRIDGES), 0, 0, -5);
00810 }
00811
00812
00813 if (drawfarpillar && cur_z >= back_height && cur_z < z_bridge - TILE_HEIGHT) {
00814 AddSortableSpriteToDraw(image, psid->pal, x_back, y_back, w, h, BB_HEIGHT_UNDER_BRIDGE - 5, cur_z, IsTransparencySet(TO_BRIDGES), 0, 0, -5);
00815 }
00816 }
00817 }
00818 }
00819
00829 static void DrawBridgeTramBits(int x, int y, byte z, int offset, bool overlay, bool head)
00830 {
00831 static const SpriteID tram_offsets[2][6] = { { 107, 108, 109, 110, 111, 112 }, { 4, 5, 15, 16, 17, 18 } };
00832 static const SpriteID back_offsets[6] = { 95, 96, 99, 102, 100, 101 };
00833 static const SpriteID front_offsets[6] = { 97, 98, 103, 106, 104, 105 };
00834
00835 static const uint size_x[6] = { 1, 16, 16, 1, 16, 1 };
00836 static const uint size_y[6] = { 16, 1, 1, 16, 1, 16 };
00837 static const uint front_bb_offset_x[6] = { 15, 0, 0, 15, 0, 15 };
00838 static const uint front_bb_offset_y[6] = { 0, 15, 15, 0, 15, 0 };
00839
00840
00841
00842 if (head || !IsInvisibilitySet(TO_BRIDGES)) {
00843 AddSortableSpriteToDraw(SPR_TRAMWAY_BASE + tram_offsets[overlay][offset], PAL_NONE,
00844 x, y, size_x[offset], size_y[offset], 0x28, z,
00845 !head && IsTransparencySet(TO_BRIDGES));
00846 }
00847
00848
00849 if (!IsInvisibilitySet(TO_CATENARY)) {
00850 AddSortableSpriteToDraw(SPR_TRAMWAY_BASE + back_offsets[offset], PAL_NONE,
00851 x, y, size_x[offset], size_y[offset], 0x28, z,
00852 IsTransparencySet(TO_CATENARY));
00853 }
00854
00855
00856 EndSpriteCombine();
00857 StartSpriteCombine();
00858
00859
00860 if (!IsInvisibilitySet(TO_CATENARY)) {
00861 AddSortableSpriteToDraw(SPR_TRAMWAY_BASE + front_offsets[offset], PAL_NONE,
00862 x, y, size_x[offset] + front_bb_offset_x[offset], size_y[offset] + front_bb_offset_y[offset], 0x28, z,
00863 IsTransparencySet(TO_CATENARY), front_bb_offset_x[offset], front_bb_offset_y[offset]);
00864 }
00865 }
00866
00880 static void DrawTile_TunnelBridge(TileInfo *ti)
00881 {
00882 SpriteID image;
00883 TransportType transport_type = GetTunnelBridgeTransportType(ti->tile);
00884 DiagDirection tunnelbridge_direction = GetTunnelBridgeDirection(ti->tile);
00885
00886 if (IsTunnel(ti->tile)) {
00887
00888
00889
00890
00891
00892
00893
00894
00895
00896 static const int _tunnel_BB[4][12] = {
00897
00898
00899 { 1, 0, -15, -14, 0, 15, 16, 1, 0, 1, 16, 15 },
00900 { 0, 1, -14, -15, 15, 0, 1, 16, 1, 0, 15, 16 },
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 };
00904 const int *BB_data = _tunnel_BB[tunnelbridge_direction];
00905
00906 bool catenary = false;
00907
00908 if (transport_type == TRANSPORT_RAIL) {
00909 image = GetRailTypeInfo(GetRailType(ti->tile))->base_sprites.tunnel;
00910 } else {
00911 image = SPR_TUNNEL_ENTRY_REAR_ROAD;
00912 }
00913
00914 if (HasTunnelBridgeSnowOrDesert(ti->tile)) image += 32;
00915
00916 image += tunnelbridge_direction * 2;
00917 DrawGroundSprite(image, PAL_NONE);
00918
00919
00920 if (_game_mode != GM_MENU && _settings_client.gui.show_track_reservation && (transport_type == TRANSPORT_RAIL && GetTunnelBridgeReservation(ti->tile))) {
00921 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(ti->tile));
00922 DrawGroundSprite(DiagDirToAxis(tunnelbridge_direction) == AXIS_X ? rti->base_sprites.single_y : rti->base_sprites.single_x, PALETTE_CRASH);
00923 }
00924
00925 if (transport_type == TRANSPORT_ROAD) {
00926 RoadTypes rts = GetRoadTypes(ti->tile);
00927
00928 if (HasBit(rts, ROADTYPE_TRAM)) {
00929 static const SpriteID tunnel_sprites[2][4] = { { 28, 78, 79, 27 }, { 5, 76, 77, 4 } };
00930
00931 DrawGroundSprite(SPR_TRAMWAY_BASE + tunnel_sprites[rts - ROADTYPES_TRAM][tunnelbridge_direction], PAL_NONE);
00932
00933
00934 if (!IsInvisibilitySet(TO_CATENARY)) {
00935 catenary = true;
00936 StartSpriteCombine();
00937 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);
00938 }
00939 }
00940 } else if (HasCatenaryDrawn(GetRailType(ti->tile))) {
00941
00942 DrawCatenary(ti);
00943
00944 catenary = true;
00945 StartSpriteCombine();
00946
00947 DrawCatenaryOnTunnel(ti);
00948 }
00949
00950 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);
00951
00952 if (catenary) EndSpriteCombine();
00953
00954
00955 AddSortableSpriteToDraw(SPR_EMPTY_BOUNDING_BOX, PAL_NONE, ti->x , ti->y , BB_data[6], BB_data[7], TILE_HEIGHT, ti->z);
00956 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);
00957
00958 DrawBridgeMiddle(ti);
00959 } else {
00960 const PalSpriteID *psid;
00961 int base_offset;
00962 bool ice = HasTunnelBridgeSnowOrDesert(ti->tile);
00963
00964 if (transport_type == TRANSPORT_RAIL) {
00965 base_offset = GetRailTypeInfo(GetRailType(ti->tile))->bridge_offset;
00966 assert(base_offset != 8);
00967 } else {
00968 base_offset = 8;
00969 }
00970
00971
00972 assert( (base_offset & 0x07) == 0x00);
00973
00974 DrawFoundation(ti, GetBridgeFoundation(ti->tileh, DiagDirToAxis(tunnelbridge_direction)));
00975
00976
00977 base_offset += (6 - tunnelbridge_direction) % 4;
00978
00979 if (ti->tileh == SLOPE_FLAT) base_offset += 4;
00980
00981
00982 if (transport_type != TRANSPORT_WATER) {
00983 psid = &GetBridgeSpriteTable(GetBridgeType(ti->tile), BRIDGE_PIECE_HEAD)[base_offset];
00984 } else {
00985 psid = _aqueduct_sprites + base_offset;
00986 }
00987
00988 if (!ice) {
00989 DrawClearLandTile(ti, 3);
00990 } else {
00991 DrawGroundSprite(SPR_FLAT_SNOWY_TILE + _tileh_to_sprite[ti->tileh], PAL_NONE);
00992 }
00993
00994
00995
00996
00997 if (transport_type == TRANSPORT_ROAD || transport_type == TRANSPORT_RAIL) StartSpriteCombine();
00998
00999
01000
01001
01002
01003 AddSortableSpriteToDraw(psid->sprite, psid->pal, ti->x, ti->y, 16, 16, ti->tileh == SLOPE_FLAT ? 0 : 8, ti->z);
01004
01005 if (_game_mode != GM_MENU && _settings_client.gui.show_track_reservation && transport_type == TRANSPORT_RAIL && GetTunnelBridgeReservation(ti->tile)) {
01006 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(ti->tile));
01007 if (HasBridgeFlatRamp(ti->tileh, DiagDirToAxis(tunnelbridge_direction))) {
01008 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);
01009 } else {
01010 AddSortableSpriteToDraw(rti->base_sprites.single_sloped + tunnelbridge_direction, PALETTE_CRASH, ti->x, ti->y, 16, 16, 8, ti->z);
01011 }
01012 }
01013
01014 if (transport_type == TRANSPORT_ROAD) {
01015 RoadTypes rts = GetRoadTypes(ti->tile);
01016
01017 if (HasBit(rts, ROADTYPE_TRAM)) {
01018 uint offset = tunnelbridge_direction;
01019 uint z = ti->z;
01020 if (ti->tileh != SLOPE_FLAT) {
01021 offset = (offset + 1) & 1;
01022 z += TILE_HEIGHT;
01023 } else {
01024 offset += 2;
01025 }
01026
01027 DrawBridgeTramBits(ti->x, ti->y, z, offset, HasBit(rts, ROADTYPE_ROAD), true);
01028 }
01029 EndSpriteCombine();
01030 } else if (transport_type == TRANSPORT_RAIL) {
01031 EndSpriteCombine();
01032 if (HasCatenaryDrawn(GetRailType(ti->tile))) {
01033 DrawCatenary(ti);
01034 }
01035 }
01036
01037 DrawBridgeMiddle(ti);
01038 }
01039 }
01040
01041
01059 static BridgePieces CalcBridgePiece(uint north, uint south)
01060 {
01061 if (north == 1) {
01062 return BRIDGE_PIECE_NORTH;
01063 } else if (south == 1) {
01064 return BRIDGE_PIECE_SOUTH;
01065 } else if (north < south) {
01066 return north & 1 ? BRIDGE_PIECE_INNER_SOUTH : BRIDGE_PIECE_INNER_NORTH;
01067 } else if (north > south) {
01068 return south & 1 ? BRIDGE_PIECE_INNER_NORTH : BRIDGE_PIECE_INNER_SOUTH;
01069 } else {
01070 return north & 1 ? BRIDGE_PIECE_MIDDLE_EVEN : BRIDGE_PIECE_MIDDLE_ODD;
01071 }
01072 }
01073
01074
01075 void DrawBridgeMiddle(const TileInfo *ti)
01076 {
01077
01078
01079
01080
01081
01082
01083
01084
01085
01086
01087
01088
01089
01090
01091
01092
01093
01094 static const int BRIDGE_Z_START = 3;
01095
01096 if (!IsBridgeAbove(ti->tile)) return;
01097
01098 TileIndex rampnorth = GetNorthernBridgeEnd(ti->tile);
01099 TileIndex rampsouth = GetSouthernBridgeEnd(ti->tile);
01100 TransportType transport_type = GetTunnelBridgeTransportType(rampsouth);
01101
01102 Axis axis = GetBridgeAxis(ti->tile);
01103 BridgePieces piece = CalcBridgePiece(
01104 GetTunnelBridgeLength(ti->tile, rampnorth) + 1,
01105 GetTunnelBridgeLength(ti->tile, rampsouth) + 1
01106 );
01107
01108 const PalSpriteID *psid;
01109 bool drawfarpillar;
01110 if (transport_type != TRANSPORT_WATER) {
01111 BridgeType type = GetBridgeType(rampsouth);
01112 drawfarpillar = !HasBit(GetBridgeSpec(type)->flags, 0);
01113
01114 uint base_offset;
01115 if (transport_type == TRANSPORT_RAIL) {
01116 base_offset = GetRailTypeInfo(GetRailType(rampsouth))->bridge_offset;
01117 } else {
01118 base_offset = 8;
01119 }
01120
01121 psid = base_offset + GetBridgeSpriteTable(type, piece);
01122 } else {
01123 drawfarpillar = true;
01124 psid = _aqueduct_sprites;
01125 }
01126
01127 if (axis != AXIS_X) psid += 4;
01128
01129 int x = ti->x;
01130 int y = ti->y;
01131 uint bridge_z = GetBridgeHeight(rampsouth);
01132 uint z = bridge_z - BRIDGE_Z_START;
01133
01134
01135 AddSortableSpriteToDraw(SPR_EMPTY_BOUNDING_BOX, PAL_NONE, x, y, 16, 16, 1, bridge_z - TILE_HEIGHT + BB_Z_SEPARATOR);
01136
01137
01138 if (transport_type == TRANSPORT_ROAD) StartSpriteCombine();
01139
01140
01141 if (!IsInvisibilitySet(TO_BRIDGES)) {
01142 if (axis == AXIS_X) {
01143 AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 16, 1, 0x28, z, IsTransparencySet(TO_BRIDGES), 0, 0, BRIDGE_Z_START);
01144 } else {
01145 AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 1, 16, 0x28, z, IsTransparencySet(TO_BRIDGES), 0, 0, BRIDGE_Z_START);
01146 }
01147 }
01148
01149 psid++;
01150
01151 if (transport_type == TRANSPORT_ROAD) {
01152 RoadTypes rts = GetRoadTypes(rampsouth);
01153
01154 if (HasBit(rts, ROADTYPE_TRAM)) {
01155
01156 DrawBridgeTramBits(x, y, bridge_z, axis ^ 1, HasBit(rts, ROADTYPE_ROAD), false);
01157 } else {
01158 EndSpriteCombine();
01159 StartSpriteCombine();
01160 }
01161 } else if (transport_type == TRANSPORT_RAIL) {
01162 if (HasCatenaryDrawn(GetRailType(rampsouth))) {
01163 DrawCatenaryOnBridge(ti);
01164 }
01165 }
01166
01167
01168 if (!IsInvisibilitySet(TO_BRIDGES)) {
01169 if (axis == AXIS_X) {
01170 y += 12;
01171 if (psid->sprite & SPRITE_MASK) AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 16, 4, 0x28, z, IsTransparencySet(TO_BRIDGES), 0, 3, BRIDGE_Z_START);
01172 } else {
01173 x += 12;
01174 if (psid->sprite & SPRITE_MASK) AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 4, 16, 0x28, z, IsTransparencySet(TO_BRIDGES), 3, 0, BRIDGE_Z_START);
01175 }
01176 }
01177
01178
01179 if (transport_type == TRANSPORT_ROAD) EndSpriteCombine();
01180
01181
01182 if (IsInvisibilitySet(TO_BRIDGES)) return;
01183
01184 psid++;
01185 if (ti->z + 5 == z) {
01186
01187 if (psid->sprite != 0) {
01188 SpriteID image = psid->sprite;
01189 SpriteID pal = psid->pal;
01190 if (IsTransparencySet(TO_BRIDGES)) {
01191 SetBit(image, PALETTE_MODIFIER_TRANSPARENT);
01192 pal = PALETTE_TO_TRANSPARENT;
01193 }
01194
01195 DrawGroundSpriteAt(image, pal, x, y, z);
01196 }
01197 } else if (_settings_client.gui.bridge_pillars) {
01198
01199 DrawBridgePillars(psid, ti, axis, drawfarpillar, x, y, z);
01200 }
01201 }
01202
01203
01204 static uint GetSlopeZ_TunnelBridge(TileIndex tile, uint x, uint y)
01205 {
01206 uint z;
01207 Slope tileh = GetTileSlope(tile, &z);
01208
01209 x &= 0xF;
01210 y &= 0xF;
01211
01212 if (IsTunnel(tile)) {
01213 uint pos = (DiagDirToAxis(GetTunnelBridgeDirection(tile)) == AXIS_X ? y : x);
01214
01215
01216 if (5 <= pos && pos <= 10) return z;
01217 } else {
01218 DiagDirection dir = GetTunnelBridgeDirection(tile);
01219 uint pos = (DiagDirToAxis(dir) == AXIS_X ? y : x);
01220
01221 z += ApplyFoundationToSlope(GetBridgeFoundation(tileh, DiagDirToAxis(dir)), &tileh);
01222
01223
01224 if (5 <= pos && pos <= 10) {
01225 uint delta;
01226
01227 if (tileh != SLOPE_FLAT) return z + TILE_HEIGHT;
01228
01229 switch (dir) {
01230 default: NOT_REACHED();
01231 case DIAGDIR_NE: delta = (TILE_SIZE - 1 - x) / 2; break;
01232 case DIAGDIR_SE: delta = y / 2; break;
01233 case DIAGDIR_SW: delta = x / 2; break;
01234 case DIAGDIR_NW: delta = (TILE_SIZE - 1 - y) / 2; break;
01235 }
01236 return z + 1 + delta;
01237 }
01238 }
01239
01240 return z + GetPartialZ(x, y, tileh);
01241 }
01242
01243 static Foundation GetFoundation_TunnelBridge(TileIndex tile, Slope tileh)
01244 {
01245 return IsTunnel(tile) ? FOUNDATION_NONE : GetBridgeFoundation(tileh, DiagDirToAxis(GetTunnelBridgeDirection(tile)));
01246 }
01247
01248
01249 static void GetAcceptedCargo_TunnelBridge(TileIndex tile, AcceptedCargo ac)
01250 {
01251
01252 }
01253
01254 static void GetTileDesc_TunnelBridge(TileIndex tile, TileDesc *td)
01255 {
01256 TransportType tt = GetTunnelBridgeTransportType(tile);
01257
01258 if (IsTunnel(tile)) {
01259 td->str = (tt == TRANSPORT_RAIL) ? STR_5017_RAILROAD_TUNNEL : STR_5018_ROAD_TUNNEL;
01260 } else {
01261 td->str = (tt == TRANSPORT_WATER) ? STR_AQUEDUCT : GetBridgeSpec(GetBridgeType(tile))->transport_name[tt];
01262 }
01263 td->owner[0] = GetTileOwner(tile);
01264
01265 Owner road_owner = INVALID_OWNER;
01266 Owner tram_owner = INVALID_OWNER;
01267 RoadTypes rts = GetRoadTypes(tile);
01268 if (HasBit(rts, ROADTYPE_ROAD)) road_owner = GetRoadOwner(tile, ROADTYPE_ROAD);
01269 if (HasBit(rts, ROADTYPE_TRAM)) tram_owner = GetRoadOwner(tile, ROADTYPE_TRAM);
01270
01271
01272 if ((tram_owner != INVALID_OWNER && tram_owner != td->owner[0]) ||
01273 (road_owner != INVALID_OWNER && road_owner != td->owner[0])) {
01274 uint i = 1;
01275 if (road_owner != INVALID_OWNER) {
01276 td->owner_type[i] = STR_ROAD_OWNER;
01277 td->owner[i] = road_owner;
01278 i++;
01279 }
01280 if (tram_owner != INVALID_OWNER) {
01281 td->owner_type[i] = STR_TRAM_OWNER;
01282 td->owner[i] = tram_owner;
01283 }
01284 }
01285 }
01286
01287
01288 static void TileLoop_TunnelBridge(TileIndex tile)
01289 {
01290 bool snow_or_desert = HasTunnelBridgeSnowOrDesert(tile);
01291 switch (_settings_game.game_creation.landscape) {
01292 case LT_ARCTIC:
01293 if (snow_or_desert != (GetTileZ(tile) > GetSnowLine())) {
01294 SetTunnelBridgeSnowOrDesert(tile, !snow_or_desert);
01295 MarkTileDirtyByTile(tile);
01296 }
01297 break;
01298
01299 case LT_TROPIC:
01300 if (GetTropicZone(tile) == TROPICZONE_DESERT && !snow_or_desert) {
01301 SetTunnelBridgeSnowOrDesert(tile, true);
01302 MarkTileDirtyByTile(tile);
01303 }
01304 break;
01305
01306 default:
01307 break;
01308 }
01309 }
01310
01311 static TrackStatus GetTileTrackStatus_TunnelBridge(TileIndex tile, TransportType mode, uint sub_mode, DiagDirection side)
01312 {
01313 TransportType transport_type = GetTunnelBridgeTransportType(tile);
01314 if (transport_type != mode || (transport_type == TRANSPORT_ROAD && (GetRoadTypes(tile) & sub_mode) == 0)) return 0;
01315
01316 DiagDirection dir = GetTunnelBridgeDirection(tile);
01317 if (side != INVALID_DIAGDIR && side != ReverseDiagDir(dir)) return 0;
01318 return CombineTrackStatus(TrackBitsToTrackdirBits(DiagDirToDiagTrackBits(dir)), TRACKDIR_BIT_NONE);
01319 }
01320
01321 static void ChangeTileOwner_TunnelBridge(TileIndex tile, Owner old_owner, Owner new_owner)
01322 {
01323 for (RoadType rt = ROADTYPE_ROAD; rt < ROADTYPE_END; rt++) {
01324
01325 if (GetRoadOwner(tile, rt) == old_owner) {
01326 SetRoadOwner(tile, rt, new_owner == INVALID_OWNER ? OWNER_NONE : new_owner);
01327 }
01328 }
01329
01330 if (!IsTileOwner(tile, old_owner)) return;
01331
01332 if (new_owner != INVALID_OWNER) {
01333 SetTileOwner(tile, new_owner);
01334 } else {
01335 if (CmdFailed(DoCommand(tile, 0, 0, DC_EXEC | DC_BANKRUPT, CMD_LANDSCAPE_CLEAR))) {
01336
01337
01338
01339
01340 assert(GetTunnelBridgeTransportType(tile) != TRANSPORT_RAIL);
01341 SetTileOwner(tile, OWNER_NONE);
01342 }
01343 }
01344 }
01345
01346
01347 static const byte _tunnel_fractcoord_1[4] = {0x8E, 0x18, 0x81, 0xE8};
01348 static const byte _tunnel_fractcoord_2[4] = {0x81, 0x98, 0x87, 0x38};
01349 static const byte _tunnel_fractcoord_3[4] = {0x82, 0x88, 0x86, 0x48};
01350 static const byte _exit_tunnel_track[4] = {1, 2, 1, 2};
01351
01353 static const Trackdir _road_exit_tunnel_state[DIAGDIR_END] = {
01354 TRACKDIR_X_SW, TRACKDIR_Y_NW, TRACKDIR_X_NE, TRACKDIR_Y_SE
01355 };
01356 static const byte _road_exit_tunnel_frame[4] = {2, 7, 9, 4};
01357
01358 static const byte _tunnel_fractcoord_4[4] = {0x52, 0x85, 0x98, 0x29};
01359 static const byte _tunnel_fractcoord_5[4] = {0x92, 0x89, 0x58, 0x25};
01360 static const byte _tunnel_fractcoord_6[4] = {0x92, 0x89, 0x56, 0x45};
01361 static const byte _tunnel_fractcoord_7[4] = {0x52, 0x85, 0x96, 0x49};
01362
01363 static VehicleEnterTileStatus VehicleEnter_TunnelBridge(Vehicle *v, TileIndex tile, int x, int y)
01364 {
01365 int z = GetSlopeZ(x, y) - v->z_pos;
01366
01367 if (abs(z) > 2) return VETSB_CANNOT_ENTER;
01368 const DiagDirection dir = GetTunnelBridgeDirection(tile);
01369
01370 if (IsTunnel(tile)) {
01371 byte fc;
01372 DiagDirection vdir;
01373
01374 if (v->type == VEH_TRAIN) {
01375 fc = (x & 0xF) + (y << 4);
01376
01377 vdir = DirToDiagDir(v->direction);
01378
01379 if (v->u.rail.track != TRACK_BIT_WORMHOLE && dir == vdir) {
01380 if (IsFrontEngine(v) && fc == _tunnel_fractcoord_1[dir]) {
01381 if (!PlayVehicleSound(v, VSE_TUNNEL) && RailVehInfo(v->engine_type)->engclass == 0) {
01382 SndPlayVehicleFx(SND_05_TRAIN_THROUGH_TUNNEL, v);
01383 }
01384 return VETSB_CONTINUE;
01385 }
01386 if (fc == _tunnel_fractcoord_2[dir]) {
01387 v->tile = tile;
01388 v->u.rail.track = TRACK_BIT_WORMHOLE;
01389 v->vehstatus |= VS_HIDDEN;
01390 return VETSB_ENTERED_WORMHOLE;
01391 }
01392 }
01393
01394 if (dir == ReverseDiagDir(vdir) && fc == _tunnel_fractcoord_3[dir] && z == 0) {
01395
01396 v->tile = tile;
01397 v->u.rail.track = (TrackBits)_exit_tunnel_track[dir];
01398 assert(v->u.rail.track);
01399 v->vehstatus &= ~VS_HIDDEN;
01400 return VETSB_ENTERED_WORMHOLE;
01401 }
01402 } else if (v->type == VEH_ROAD) {
01403 fc = (x & 0xF) + (y << 4);
01404 vdir = DirToDiagDir(v->direction);
01405
01406
01407 if (v->u.road.state != RVSB_WORMHOLE && dir == vdir) {
01408 if (fc == _tunnel_fractcoord_4[dir] ||
01409 fc == _tunnel_fractcoord_5[dir]) {
01410 v->tile = tile;
01411 v->u.road.state = RVSB_WORMHOLE;
01412 v->vehstatus |= VS_HIDDEN;
01413 return VETSB_ENTERED_WORMHOLE;
01414 } else {
01415 return VETSB_CONTINUE;
01416 }
01417 }
01418
01419 if (dir == ReverseDiagDir(vdir) && (
01420
01421 fc == _tunnel_fractcoord_6[dir] ||
01422 fc == _tunnel_fractcoord_7[dir]
01423 ) &&
01424 z == 0) {
01425 v->tile = tile;
01426 v->u.road.state = _road_exit_tunnel_state[dir];
01427 v->u.road.frame = _road_exit_tunnel_frame[dir];
01428 v->vehstatus &= ~VS_HIDDEN;
01429 return VETSB_ENTERED_WORMHOLE;
01430 }
01431 }
01432 } else {
01433
01434 if (v->IsPrimaryVehicle() && v->type != VEH_SHIP) {
01435
01436 uint16 spd = GetBridgeSpec(GetBridgeType(tile))->speed;
01437
01438 if (v->type == VEH_ROAD) spd *= 2;
01439 if (v->cur_speed > spd) v->cur_speed = spd;
01440 }
01441
01442 if (DirToDiagDir(v->direction) == dir) {
01443 switch (dir) {
01444 default: NOT_REACHED();
01445 case DIAGDIR_NE: if ((x & 0xF) != 0) return VETSB_CONTINUE; break;
01446 case DIAGDIR_SE: if ((y & 0xF) != TILE_SIZE - 1) return VETSB_CONTINUE; break;
01447 case DIAGDIR_SW: if ((x & 0xF) != TILE_SIZE - 1) return VETSB_CONTINUE; break;
01448 case DIAGDIR_NW: if ((y & 0xF) != 0) return VETSB_CONTINUE; break;
01449 }
01450 switch (v->type) {
01451 case VEH_TRAIN:
01452 v->u.rail.track = TRACK_BIT_WORMHOLE;
01453 ClrBit(v->u.rail.flags, VRF_GOINGUP);
01454 ClrBit(v->u.rail.flags, VRF_GOINGDOWN);
01455 break;
01456
01457 case VEH_ROAD:
01458 v->u.road.state = RVSB_WORMHOLE;
01459 break;
01460
01461 case VEH_SHIP:
01462 v->u.ship.state = TRACK_BIT_WORMHOLE;
01463 break;
01464
01465 default: NOT_REACHED();
01466 }
01467 return VETSB_ENTERED_WORMHOLE;
01468 } else if (DirToDiagDir(v->direction) == ReverseDiagDir(dir)) {
01469 v->tile = tile;
01470 switch (v->type) {
01471 case VEH_TRAIN:
01472 if (v->u.rail.track == TRACK_BIT_WORMHOLE) {
01473 v->u.rail.track = (DiagDirToAxis(dir) == AXIS_X ? TRACK_BIT_X : TRACK_BIT_Y);
01474 return VETSB_ENTERED_WORMHOLE;
01475 }
01476 break;
01477
01478 case VEH_ROAD:
01479 if (v->u.road.state == RVSB_WORMHOLE) {
01480 v->u.road.state = _road_exit_tunnel_state[dir];
01481 v->u.road.frame = 0;
01482 return VETSB_ENTERED_WORMHOLE;
01483 }
01484 break;
01485
01486 case VEH_SHIP:
01487 if (v->u.ship.state == TRACK_BIT_WORMHOLE) {
01488 v->u.ship.state = (DiagDirToAxis(dir) == AXIS_X ? TRACK_BIT_X : TRACK_BIT_Y);
01489 return VETSB_ENTERED_WORMHOLE;
01490 }
01491 break;
01492
01493 default: NOT_REACHED();
01494 }
01495 }
01496 }
01497 return VETSB_CONTINUE;
01498 }
01499
01500 static CommandCost TerraformTile_TunnelBridge(TileIndex tile, DoCommandFlag flags, uint z_new, Slope tileh_new)
01501 {
01502 if (_settings_game.construction.build_on_slopes && AutoslopeEnabled() && IsBridge(tile) && GetTunnelBridgeTransportType(tile) != TRANSPORT_WATER) {
01503 DiagDirection direction = GetTunnelBridgeDirection(tile);
01504 Axis axis = DiagDirToAxis(direction);
01505 CommandCost res;
01506 uint z_old;
01507 Slope tileh_old = GetTileSlope(tile, &z_old);
01508
01509
01510 if ((direction == DIAGDIR_NW) || (direction == DIAGDIR_NE)) {
01511 CheckBridgeSlopeSouth(axis, &tileh_old, &z_old);
01512 res = CheckBridgeSlopeSouth(axis, &tileh_new, &z_new);
01513 } else {
01514 CheckBridgeSlopeNorth(axis, &tileh_old, &z_old);
01515 res = CheckBridgeSlopeNorth(axis, &tileh_new, &z_new);
01516 }
01517
01518
01519 if (!CmdFailed(res) && (z_old == z_new) && (tileh_old == tileh_new)) return CommandCost(EXPENSES_CONSTRUCTION, _price.terraform);
01520 }
01521
01522 return DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
01523 }
01524
01525 extern const TileTypeProcs _tile_type_tunnelbridge_procs = {
01526 DrawTile_TunnelBridge,
01527 GetSlopeZ_TunnelBridge,
01528 ClearTile_TunnelBridge,
01529 GetAcceptedCargo_TunnelBridge,
01530 GetTileDesc_TunnelBridge,
01531 GetTileTrackStatus_TunnelBridge,
01532 NULL,
01533 NULL,
01534 TileLoop_TunnelBridge,
01535 ChangeTileOwner_TunnelBridge,
01536 NULL,
01537 VehicleEnter_TunnelBridge,
01538 GetFoundation_TunnelBridge,
01539 TerraformTile_TunnelBridge,
01540 };