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00015 #include "stdafx.h"
00016 #include "rail_map.h"
00017 #include "landscape.h"
00018 #include "unmovable_map.h"
00019 #include "viewport_func.h"
00020 #include "cmd_helper.h"
00021 #include "command_func.h"
00022 #include "town.h"
00023 #include "variables.h"
00024 #include "train.h"
00025 #include "ship.h"
00026 #include "roadveh.h"
00027 #include "water_map.h"
00028 #include "pathfinder/yapf/yapf_cache.h"
00029 #include "newgrf_sound.h"
00030 #include "autoslope.h"
00031 #include "tunnelbridge_map.h"
00032 #include "strings_func.h"
00033 #include "date_func.h"
00034 #include "functions.h"
00035 #include "vehicle_func.h"
00036 #include "sound_func.h"
00037 #include "tunnelbridge.h"
00038 #include "cheat_type.h"
00039 #include "elrail_func.h"
00040 #include "landscape_type.h"
00041 #include "pbs.h"
00042 #include "company_base.h"
00043 #include "engine_base.h"
00044 #include "newgrf_railtype.h"
00045
00046 #include "table/sprites.h"
00047 #include "table/strings.h"
00048 #include "table/bridge_land.h"
00049
00050 BridgeSpec _bridge[MAX_BRIDGES];
00051 TileIndex _build_tunnel_endtile;
00052
00054 void ResetBridges()
00055 {
00056
00057 for (BridgeType i = 0; i < MAX_BRIDGES; i++) {
00058 if (_bridge[i].sprite_table != NULL) {
00059 for (BridgePieces j = BRIDGE_PIECE_NORTH; j < BRIDGE_PIECE_INVALID; j++) free(_bridge[i].sprite_table[j]);
00060 free(_bridge[i].sprite_table);
00061 }
00062 }
00063
00064
00065 memset(&_bridge, 0, sizeof(_bridge));
00066
00067 memcpy(&_bridge, &_orig_bridge, sizeof(_orig_bridge));
00068 }
00069
00073 int CalcBridgeLenCostFactor(int x)
00074 {
00075 int n;
00076 int r;
00077
00078 if (x < 2) return x;
00079 x -= 2;
00080 for (n = 0, r = 2;; n++) {
00081 if (x <= n) return r + x * n;
00082 r += n * n;
00083 x -= n;
00084 }
00085 }
00086
00087 Foundation GetBridgeFoundation(Slope tileh, Axis axis)
00088 {
00089 if ((tileh == SLOPE_FLAT) ||
00090 (((tileh == SLOPE_NE) || (tileh == SLOPE_SW)) && (axis == AXIS_X)) ||
00091 (((tileh == SLOPE_NW) || (tileh == SLOPE_SE)) && (axis == AXIS_Y))) return FOUNDATION_NONE;
00092
00093 return (HasSlopeHighestCorner(tileh) ? InclinedFoundation(axis) : FlatteningFoundation(tileh));
00094 }
00095
00103 bool HasBridgeFlatRamp(Slope tileh, Axis axis)
00104 {
00105 ApplyFoundationToSlope(GetBridgeFoundation(tileh, axis), &tileh);
00106
00107 return (tileh != SLOPE_FLAT);
00108 }
00109
00110 static inline const PalSpriteID *GetBridgeSpriteTable(int index, BridgePieces table)
00111 {
00112 const BridgeSpec *bridge = GetBridgeSpec(index);
00113 assert(table < BRIDGE_PIECE_INVALID);
00114 if (bridge->sprite_table == NULL || bridge->sprite_table[table] == NULL) {
00115 return _bridge_sprite_table[index][table];
00116 } else {
00117 return bridge->sprite_table[table];
00118 }
00119 }
00120
00121
00130 static CommandCost CheckBridgeSlopeNorth(Axis axis, Slope *tileh, uint *z)
00131 {
00132 Foundation f = GetBridgeFoundation(*tileh, axis);
00133 *z += ApplyFoundationToSlope(f, tileh);
00134
00135 Slope valid_inclined = (axis == AXIS_X ? SLOPE_NE : SLOPE_NW);
00136 if ((*tileh != SLOPE_FLAT) && (*tileh != valid_inclined)) return CMD_ERROR;
00137
00138 if (f == FOUNDATION_NONE) return CommandCost();
00139
00140 return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
00141 }
00142
00151 static CommandCost CheckBridgeSlopeSouth(Axis axis, Slope *tileh, uint *z)
00152 {
00153 Foundation f = GetBridgeFoundation(*tileh, axis);
00154 *z += ApplyFoundationToSlope(f, tileh);
00155
00156 Slope valid_inclined = (axis == AXIS_X ? SLOPE_SW : SLOPE_SE);
00157 if ((*tileh != SLOPE_FLAT) && (*tileh != valid_inclined)) return CMD_ERROR;
00158
00159 if (f == FOUNDATION_NONE) return CommandCost();
00160
00161 return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
00162 }
00163
00169 CommandCost CheckBridgeAvailability(BridgeType bridge_type, uint bridge_len, DoCommandFlag flags)
00170 {
00171 if (flags & DC_QUERY_COST) {
00172 if (bridge_len <= (_settings_game.construction.longbridges ? 100U : 16U)) return CommandCost();
00173 return_cmd_error(STR_ERROR_BRIDGE_TOO_LONG);
00174 }
00175
00176 if (bridge_type >= MAX_BRIDGES) return CMD_ERROR;
00177
00178 const BridgeSpec *b = GetBridgeSpec(bridge_type);
00179 if (b->avail_year > _cur_year) return CMD_ERROR;
00180
00181 uint max = b->max_length;
00182 if (max >= 16 && _settings_game.construction.longbridges) max = 100;
00183
00184 if (b->min_length > bridge_len) return CMD_ERROR;
00185 if (bridge_len <= max) return CommandCost();
00186 return_cmd_error(STR_ERROR_BRIDGE_TOO_LONG);
00187 }
00188
00200 CommandCost CmdBuildBridge(TileIndex end_tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00201 {
00202 RailType railtype = INVALID_RAILTYPE;
00203 RoadTypes roadtypes = ROADTYPES_NONE;
00204 CommandCost cost(EXPENSES_CONSTRUCTION);
00205 Owner owner;
00206
00207
00208 BridgeType bridge_type = GB(p2, 0, 8);
00209
00210 if (p1 >= MapSize()) return CMD_ERROR;
00211
00212 TransportType transport_type = Extract<TransportType, 15, 2>(p2);
00213
00214
00215 switch (transport_type) {
00216 case TRANSPORT_ROAD:
00217 roadtypes = Extract<RoadTypes, 8, 2>(p2);
00218 if (!HasExactlyOneBit(roadtypes) || !HasRoadTypesAvail(_current_company, roadtypes)) return CMD_ERROR;
00219 break;
00220
00221 case TRANSPORT_RAIL:
00222 railtype = Extract<RailType, 8, 4>(p2);
00223 if (!ValParamRailtype(railtype)) return CMD_ERROR;
00224 break;
00225
00226 case TRANSPORT_WATER:
00227 break;
00228
00229 default:
00230
00231 return CMD_ERROR;
00232 }
00233 TileIndex tile_start = p1;
00234 TileIndex tile_end = end_tile;
00235
00236 if (tile_start == tile_end) {
00237 return_cmd_error(STR_ERROR_CAN_T_START_AND_END_ON);
00238 }
00239
00240 Axis direction;
00241 if (TileX(tile_start) == TileX(tile_end)) {
00242 direction = AXIS_Y;
00243 } else if (TileY(tile_start) == TileY(tile_end)) {
00244 direction = AXIS_X;
00245 } else {
00246 return_cmd_error(STR_ERROR_START_AND_END_MUST_BE_IN);
00247 }
00248
00249 if (tile_end < tile_start) Swap(tile_start, tile_end);
00250
00251 uint bridge_len = GetTunnelBridgeLength(tile_start, tile_end);
00252 if (transport_type != TRANSPORT_WATER) {
00253
00254 CommandCost ret = CheckBridgeAvailability(bridge_type, bridge_len, flags);
00255 if (ret.Failed()) return ret;
00256 } else {
00257 if (bridge_len > (_settings_game.construction.longbridges ? 100U : 16U)) return_cmd_error(STR_ERROR_BRIDGE_TOO_LONG);
00258 }
00259
00260
00261 if (IsWaterTile(tile_start) || IsWaterTile(tile_end)) {
00262 return_cmd_error(STR_ERROR_ENDS_OF_BRIDGE_MUST_BOTH);
00263 }
00264
00265 uint z_start;
00266 uint z_end;
00267 Slope tileh_start = GetTileSlope(tile_start, &z_start);
00268 Slope tileh_end = GetTileSlope(tile_end, &z_end);
00269 bool pbs_reservation = false;
00270
00271 CommandCost terraform_cost_north = CheckBridgeSlopeNorth(direction, &tileh_start, &z_start);
00272 CommandCost terraform_cost_south = CheckBridgeSlopeSouth(direction, &tileh_end, &z_end);
00273
00274 if (z_start != z_end) return_cmd_error(STR_ERROR_BRIDGEHEADS_NOT_SAME_HEIGHT);
00275
00276 if (IsBridgeTile(tile_start) && IsBridgeTile(tile_end) &&
00277 GetOtherBridgeEnd(tile_start) == tile_end &&
00278 GetTunnelBridgeTransportType(tile_start) == transport_type) {
00279
00280
00281
00282 if (transport_type == TRANSPORT_RAIL && GetRailType(tile_start) != railtype) {
00283 return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00284 }
00285
00286
00287 if (!(flags & DC_QUERY_COST) && IsTileOwner(tile_start, OWNER_TOWN) &&
00288 GetBridgeSpec(bridge_type)->speed < GetBridgeSpec(GetBridgeType(tile_start))->speed) {
00289 Town *t = ClosestTownFromTile(tile_start, UINT_MAX);
00290
00291 if (t == NULL) {
00292 return CMD_ERROR;
00293 } else {
00294 SetDParam(0, t->index);
00295 return_cmd_error(STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS);
00296 }
00297 }
00298
00299
00300 if (!(flags & DC_QUERY_COST) && bridge_type == GetBridgeType(tile_start)) {
00301 return_cmd_error(STR_ERROR_ALREADY_BUILT);
00302 }
00303
00304
00305 if (!IsTileOwner(tile_start, _current_company) && !IsTileOwner(tile_start, OWNER_TOWN)) {
00306 return_cmd_error(STR_ERROR_AREA_IS_OWNED_BY_ANOTHER);
00307 }
00308
00309 cost.AddCost((bridge_len + 1) * _price[PR_CLEAR_BRIDGE]);
00310 owner = GetTileOwner(tile_start);
00311
00312 switch (transport_type) {
00313 case TRANSPORT_RAIL:
00314
00315 pbs_reservation = HasTunnelBridgeReservation(tile_start);
00316 break;
00317
00318 case TRANSPORT_ROAD:
00319
00320 roadtypes |= GetRoadTypes(tile_start);
00321 break;
00322
00323 default: break;
00324 }
00325 } else {
00326
00327
00328 bool allow_on_slopes = (_settings_game.construction.build_on_slopes && transport_type != TRANSPORT_WATER);
00329
00330
00331 CommandCost ret = DoCommand(tile_start, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00332 if (ret.Failed()) return ret;
00333 cost = ret;
00334
00335 if (terraform_cost_north.Failed() || (terraform_cost_north.GetCost() != 0 && !allow_on_slopes))
00336 return_cmd_error(STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION);
00337 cost.AddCost(terraform_cost_north);
00338
00339
00340 ret = DoCommand(tile_end, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00341 if (ret.Failed()) return ret;
00342 cost.AddCost(ret);
00343
00344
00345 if (terraform_cost_south.Failed() || (terraform_cost_south.GetCost() != 0 && !allow_on_slopes))
00346 return_cmd_error(STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION);
00347 cost.AddCost(terraform_cost_south);
00348
00349 if (transport_type == TRANSPORT_WATER && (tileh_start == SLOPE_FLAT || tileh_end == SLOPE_FLAT)) return_cmd_error(STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION);
00350
00351 const TileIndex heads[] = {tile_start, tile_end};
00352 for (int i = 0; i < 2; i++) {
00353 if (MayHaveBridgeAbove(heads[i])) {
00354 if (IsBridgeAbove(heads[i])) {
00355 TileIndex north_head = GetNorthernBridgeEnd(heads[i]);
00356
00357 if (direction == GetBridgeAxis(heads[i])) return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00358
00359 if (z_start + TILE_HEIGHT == GetBridgeHeight(north_head)) {
00360 return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00361 }
00362 }
00363 }
00364 }
00365
00366 TileIndexDiff delta = (direction == AXIS_X ? TileDiffXY(1, 0) : TileDiffXY(0, 1));
00367 for (TileIndex tile = tile_start + delta; tile != tile_end; tile += delta) {
00368 if (GetTileMaxZ(tile) > z_start) return_cmd_error(STR_ERROR_BRIDGE_TOO_LOW_FOR_TERRAIN);
00369
00370 if (MayHaveBridgeAbove(tile) && IsBridgeAbove(tile)) {
00371
00372 return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00373 }
00374
00375 switch (GetTileType(tile)) {
00376 case MP_WATER:
00377 if (!IsWater(tile) && !IsCoast(tile)) goto not_valid_below;
00378 break;
00379
00380 case MP_RAILWAY:
00381 if (!IsPlainRail(tile)) goto not_valid_below;
00382 break;
00383
00384 case MP_ROAD:
00385 if (IsRoadDepot(tile)) goto not_valid_below;
00386 break;
00387
00388 case MP_TUNNELBRIDGE:
00389 if (IsTunnel(tile)) break;
00390 if (direction == DiagDirToAxis(GetTunnelBridgeDirection(tile))) goto not_valid_below;
00391 if (z_start < GetBridgeHeight(tile)) goto not_valid_below;
00392 break;
00393
00394 case MP_UNMOVABLE:
00395 if (!IsOwnedLand(tile)) goto not_valid_below;
00396 break;
00397
00398 case MP_CLEAR:
00399 break;
00400
00401 default:
00402 not_valid_below:;
00403
00404 ret = DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00405 if (ret.Failed()) return ret;
00406 cost.AddCost(ret);
00407 break;
00408 }
00409
00410 if (flags & DC_EXEC) {
00411
00412
00413
00414 SetBridgeMiddle(tile, direction);
00415 }
00416 }
00417
00418 owner = _current_company;
00419 }
00420
00421
00422 if (flags & DC_EXEC) {
00423 DiagDirection dir = AxisToDiagDir(direction);
00424
00425 switch (transport_type) {
00426 case TRANSPORT_RAIL:
00427 MakeRailBridgeRamp(tile_start, owner, bridge_type, dir, railtype);
00428 MakeRailBridgeRamp(tile_end, owner, bridge_type, ReverseDiagDir(dir), railtype);
00429 SetTunnelBridgeReservation(tile_start, pbs_reservation);
00430 SetTunnelBridgeReservation(tile_end, pbs_reservation);
00431 break;
00432
00433 case TRANSPORT_ROAD:
00434 MakeRoadBridgeRamp(tile_start, owner, bridge_type, dir, roadtypes);
00435 MakeRoadBridgeRamp(tile_end, owner, bridge_type, ReverseDiagDir(dir), roadtypes);
00436 break;
00437
00438 case TRANSPORT_WATER:
00439 MakeAqueductBridgeRamp(tile_start, owner, dir);
00440 MakeAqueductBridgeRamp(tile_end, owner, ReverseDiagDir(dir));
00441 break;
00442
00443 default:
00444 NOT_REACHED();
00445 }
00446
00447
00448 TileIndexDiff delta = (direction == AXIS_X ? TileDiffXY(1, 0) : TileDiffXY(0, 1));
00449 for (TileIndex tile = tile_start; tile <= tile_end; tile += delta) {
00450 MarkTileDirtyByTile(tile);
00451 }
00452 }
00453
00454 if ((flags & DC_EXEC) && transport_type == TRANSPORT_RAIL) {
00455 Track track = AxisToTrack(direction);
00456 AddSideToSignalBuffer(tile_start, INVALID_DIAGDIR, _current_company);
00457 YapfNotifyTrackLayoutChange(tile_start, track);
00458 }
00459
00460
00461
00462
00463
00464 Company *c = Company::GetIfValid(_current_company);
00465 if (!(flags & DC_QUERY_COST) || (c != NULL && c->is_ai)) {
00466 bridge_len += 2;
00467
00468 if (c != NULL) bridge_len = CalcBridgeLenCostFactor(bridge_len);
00469
00470 cost.AddCost((int64)bridge_len * _price[PR_BUILD_BRIDGE] * GetBridgeSpec(bridge_type)->price >> 8);
00471
00472
00473 if (transport_type == TRANSPORT_WATER) cost.AddCost((int64)bridge_len * _price[PR_CLEAR_WATER]);
00474 }
00475
00476 return cost;
00477 }
00478
00479
00489 CommandCost CmdBuildTunnel(TileIndex start_tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00490 {
00491 TransportType transport_type = Extract<TransportType, 8, 2>(p1);
00492 CommandCost cost(EXPENSES_CONSTRUCTION);
00493
00494 RailType railtype = INVALID_RAILTYPE;
00495 RoadTypes rts = ROADTYPES_NONE;
00496 _build_tunnel_endtile = 0;
00497 switch (transport_type) {
00498 case TRANSPORT_RAIL:
00499 railtype = Extract<RailType, 0, 4>(p1);
00500 if (!ValParamRailtype(railtype)) return CMD_ERROR;
00501 break;
00502
00503 case TRANSPORT_ROAD:
00504 rts = Extract<RoadTypes, 0, 2>(p1);
00505 if (!HasExactlyOneBit(rts) || !HasRoadTypesAvail(_current_company, rts)) return CMD_ERROR;
00506 break;
00507
00508 default: return CMD_ERROR;
00509 }
00510
00511 uint start_z;
00512 uint end_z;
00513 Slope start_tileh = GetTileSlope(start_tile, &start_z);
00514 DiagDirection direction = GetInclinedSlopeDirection(start_tileh);
00515 if (direction == INVALID_DIAGDIR) return_cmd_error(STR_ERROR_SITE_UNSUITABLE_FOR_TUNNEL);
00516
00517 if (IsWaterTile(start_tile)) return_cmd_error(STR_ERROR_CAN_T_BUILD_ON_WATER);
00518
00519 CommandCost ret = DoCommand(start_tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00520 if (ret.Failed()) return ret;
00521
00522
00523
00524
00525
00526
00527 TileIndexDiff delta = TileOffsByDiagDir(direction);
00528 DiagDirection tunnel_in_way_dir;
00529 if (DiagDirToAxis(direction) == AXIS_Y) {
00530 tunnel_in_way_dir = (TileX(start_tile) < (MapMaxX() / 2)) ? DIAGDIR_SW : DIAGDIR_NE;
00531 } else {
00532 tunnel_in_way_dir = (TileY(start_tile) < (MapMaxX() / 2)) ? DIAGDIR_SE : DIAGDIR_NW;
00533 }
00534
00535 TileIndex end_tile = start_tile;
00536
00537
00538 int tiles_coef = 3;
00539
00540 int tiles = 0;
00541
00542 int tiles_bump = 25;
00543
00544 Slope end_tileh;
00545 for (;;) {
00546 end_tile += delta;
00547 if (!IsValidTile(end_tile)) return_cmd_error(STR_ERROR_TUNNEL_THROUGH_MAP_BORDER);
00548 end_tileh = GetTileSlope(end_tile, &end_z);
00549
00550 if (start_z == end_z) break;
00551
00552 if (!_cheats.crossing_tunnels.value && IsTunnelInWayDir(end_tile, start_z, tunnel_in_way_dir)) {
00553 return_cmd_error(STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY);
00554 }
00555
00556 tiles++;
00557 if (tiles == tiles_bump) {
00558 tiles_coef++;
00559 tiles_bump *= 2;
00560 }
00561
00562 cost.AddCost(_price[PR_BUILD_TUNNEL]);
00563 cost.AddCost(cost.GetCost() >> tiles_coef);
00564 }
00565
00566
00567 cost.AddCost(_price[PR_BUILD_TUNNEL]);
00568 cost.AddCost(ret);
00569
00570
00571 _build_tunnel_endtile = end_tile;
00572
00573 if (IsWaterTile(end_tile)) return_cmd_error(STR_ERROR_CAN_T_BUILD_ON_WATER);
00574
00575
00576 if (end_tileh != ComplementSlope(start_tileh)) {
00577
00578
00579
00580
00581 ret = DoCommand(end_tile, 0, 0, DC_AUTO, CMD_LANDSCAPE_CLEAR);
00582 if (ret.Failed()) return_cmd_error(STR_ERROR_UNABLE_TO_EXCAVATE_LAND);
00583
00584 ret = DoCommand(end_tile, end_tileh & start_tileh, 0, flags, CMD_TERRAFORM_LAND);
00585 if (ret.Failed()) return_cmd_error(STR_ERROR_UNABLE_TO_EXCAVATE_LAND);
00586 } else {
00587 ret = DoCommand(end_tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00588 if (ret.Failed()) return ret;
00589 }
00590 cost.AddCost(_price[PR_BUILD_TUNNEL]);
00591 cost.AddCost(ret);
00592
00593 if (flags & DC_EXEC) {
00594 if (transport_type == TRANSPORT_RAIL) {
00595 MakeRailTunnel(start_tile, _current_company, direction, railtype);
00596 MakeRailTunnel(end_tile, _current_company, ReverseDiagDir(direction), railtype);
00597 AddSideToSignalBuffer(start_tile, INVALID_DIAGDIR, _current_company);
00598 YapfNotifyTrackLayoutChange(start_tile, DiagDirToDiagTrack(direction));
00599 } else {
00600 MakeRoadTunnel(start_tile, _current_company, direction, rts);
00601 MakeRoadTunnel(end_tile, _current_company, ReverseDiagDir(direction), rts);
00602 }
00603 }
00604
00605 return cost;
00606 }
00607
00608
00609 static inline bool CheckAllowRemoveTunnelBridge(TileIndex tile)
00610 {
00611
00612 if (_current_company == OWNER_WATER || _game_mode == GM_EDITOR) return true;
00613
00614 switch (GetTunnelBridgeTransportType(tile)) {
00615 case TRANSPORT_ROAD: {
00616 RoadTypes rts = GetRoadTypes(tile);
00617 Owner road_owner = _current_company;
00618 Owner tram_owner = _current_company;
00619
00620 if (HasBit(rts, ROADTYPE_ROAD)) road_owner = GetRoadOwner(tile, ROADTYPE_ROAD);
00621 if (HasBit(rts, ROADTYPE_TRAM)) tram_owner = GetRoadOwner(tile, ROADTYPE_TRAM);
00622
00623
00624 if (road_owner == OWNER_TOWN && !(_settings_game.construction.extra_dynamite || _cheats.magic_bulldozer.value)) return CheckTileOwnership(tile);
00625 if (road_owner == OWNER_NONE || road_owner == OWNER_TOWN) road_owner = _current_company;
00626 if (tram_owner == OWNER_NONE) tram_owner = _current_company;
00627
00628 return CheckOwnership(road_owner, tile) && CheckOwnership(tram_owner, tile);
00629 }
00630
00631 case TRANSPORT_RAIL:
00632 case TRANSPORT_WATER:
00633 return CheckOwnership(GetTileOwner(tile));
00634
00635 default: NOT_REACHED();
00636 }
00637 }
00638
00639 static CommandCost DoClearTunnel(TileIndex tile, DoCommandFlag flags)
00640 {
00641 Town *t = NULL;
00642 TileIndex endtile;
00643
00644 if (!CheckAllowRemoveTunnelBridge(tile)) return CMD_ERROR;
00645
00646 endtile = GetOtherTunnelEnd(tile);
00647
00648 if (HasVehicleOnTunnelBridge(tile, endtile)) return CMD_ERROR;
00649
00650 _build_tunnel_endtile = endtile;
00651
00652 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00653 t = ClosestTownFromTile(tile, UINT_MAX);
00654
00655
00656
00657 if (!CheckforTownRating(flags, t, TUNNELBRIDGE_REMOVE)) {
00658 SetDParam(0, t->index);
00659 return_cmd_error(STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS);
00660 }
00661 }
00662
00663
00664
00665 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00666 ChangeTownRating(t, RATING_TUNNEL_BRIDGE_DOWN_STEP, RATING_TUNNEL_BRIDGE_MINIMUM, flags);
00667 }
00668
00669 if (flags & DC_EXEC) {
00670 if (GetTunnelBridgeTransportType(tile) == TRANSPORT_RAIL) {
00671
00672 DiagDirection dir = GetTunnelBridgeDirection(tile);
00673 Track track = DiagDirToDiagTrack(dir);
00674 Owner owner = GetTileOwner(tile);
00675
00676 Train *v = NULL;
00677 if (HasTunnelBridgeReservation(tile)) {
00678 v = GetTrainForReservation(tile, track);
00679 if (v != NULL) FreeTrainTrackReservation(v);
00680 }
00681
00682 DoClearSquare(tile);
00683 DoClearSquare(endtile);
00684
00685
00686 AddSideToSignalBuffer(tile, ReverseDiagDir(dir), owner);
00687 AddSideToSignalBuffer(endtile, dir, owner);
00688
00689 YapfNotifyTrackLayoutChange(tile, track);
00690 YapfNotifyTrackLayoutChange(endtile, track);
00691
00692 if (v != NULL) TryPathReserve(v);
00693 } else {
00694 DoClearSquare(tile);
00695 DoClearSquare(endtile);
00696 }
00697 }
00698 return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_CLEAR_TUNNEL] * (GetTunnelBridgeLength(tile, endtile) + 2));
00699 }
00700
00701
00702 static CommandCost DoClearBridge(TileIndex tile, DoCommandFlag flags)
00703 {
00704 DiagDirection direction;
00705 TileIndexDiff delta;
00706 TileIndex endtile;
00707 Town *t = NULL;
00708
00709 if (!CheckAllowRemoveTunnelBridge(tile)) return CMD_ERROR;
00710
00711 endtile = GetOtherBridgeEnd(tile);
00712
00713 if (HasVehicleOnTunnelBridge(tile, endtile)) return CMD_ERROR;
00714
00715 direction = GetTunnelBridgeDirection(tile);
00716 delta = TileOffsByDiagDir(direction);
00717
00718 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00719 t = ClosestTownFromTile(tile, UINT_MAX);
00720
00721
00722
00723 if (!CheckforTownRating(flags, t, TUNNELBRIDGE_REMOVE)) {
00724 SetDParam(0, t->index);
00725 return_cmd_error(STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS);
00726 }
00727 }
00728
00729
00730
00731 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00732 ChangeTownRating(t, RATING_TUNNEL_BRIDGE_DOWN_STEP, RATING_TUNNEL_BRIDGE_MINIMUM, flags);
00733 }
00734
00735 if (flags & DC_EXEC) {
00736
00737 bool rail = GetTunnelBridgeTransportType(tile) == TRANSPORT_RAIL;
00738 Owner owner = GetTileOwner(tile);
00739 uint height = GetBridgeHeight(tile);
00740 Train *v = NULL;
00741
00742 if (rail && HasTunnelBridgeReservation(tile)) {
00743 v = GetTrainForReservation(tile, DiagDirToDiagTrack(direction));
00744 if (v != NULL) FreeTrainTrackReservation(v);
00745 }
00746
00747 DoClearSquare(tile);
00748 DoClearSquare(endtile);
00749 for (TileIndex c = tile + delta; c != endtile; c += delta) {
00750
00751 if (IsNormalRoadTile(c) && GetRoadside(c) == ROADSIDE_TREES) {
00752 uint minz = GetTileMaxZ(c) + 3 * TILE_HEIGHT;
00753 if (height < minz) SetRoadside(c, ROADSIDE_PAVED);
00754 }
00755 ClearBridgeMiddle(c);
00756 MarkTileDirtyByTile(c);
00757 }
00758
00759 if (rail) {
00760
00761 AddSideToSignalBuffer(tile, ReverseDiagDir(direction), owner);
00762 AddSideToSignalBuffer(endtile, direction, owner);
00763
00764 Track track = DiagDirToDiagTrack(direction);
00765 YapfNotifyTrackLayoutChange(tile, track);
00766 YapfNotifyTrackLayoutChange(endtile, track);
00767
00768 if (v != NULL) TryPathReserve(v, true);
00769 }
00770 }
00771
00772 return CommandCost(EXPENSES_CONSTRUCTION, (GetTunnelBridgeLength(tile, endtile) + 2) * _price[PR_CLEAR_BRIDGE]);
00773 }
00774
00775 static CommandCost ClearTile_TunnelBridge(TileIndex tile, DoCommandFlag flags)
00776 {
00777 if (IsTunnel(tile)) {
00778 if (flags & DC_AUTO) return_cmd_error(STR_ERROR_MUST_DEMOLISH_TUNNEL_FIRST);
00779 return DoClearTunnel(tile, flags);
00780 } else {
00781 if (flags & DC_AUTO) return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00782 return DoClearBridge(tile, flags);
00783 }
00784
00785 return CMD_ERROR;
00786 }
00787
00799 static void DrawBridgePillars(const PalSpriteID *psid, const TileInfo *ti, Axis axis, bool drawfarpillar, int x, int y, int z_bridge)
00800 {
00801
00802 if (IsInvisibilitySet(TO_BRIDGES)) return;
00803
00804 SpriteID image = psid->sprite;
00805
00806 if (image != 0) {
00807
00808
00809
00810
00811
00812
00813
00814
00815
00816 bool side = HasBit(image, 0);
00817
00818
00819 DiagDirection dir = AxisToDiagDir(axis);
00820 if (side != (axis == AXIS_Y)) dir = ReverseDiagDir(dir);
00821
00822
00823 int front_height = ti->z;
00824 int back_height = ti->z;
00825 GetSlopeZOnEdge(ti->tileh, dir, &front_height, &back_height);
00826
00827
00828 int w = (axis == AXIS_X ? 16 : 2);
00829 int h = (axis == AXIS_X ? 2 : 16);
00830
00831 int x_back = x - (axis == AXIS_X ? 0 : 9);
00832 int y_back = y - (axis == AXIS_X ? 9 : 0);
00833
00834 for (int cur_z = z_bridge; cur_z >= front_height || cur_z >= back_height; cur_z -= TILE_HEIGHT) {
00835
00836 if (cur_z >= front_height) {
00837 AddSortableSpriteToDraw(image, psid->pal, x, y, w, h, BB_HEIGHT_UNDER_BRIDGE - 5, cur_z, IsTransparencySet(TO_BRIDGES), 0, 0, -5);
00838 }
00839
00840
00841 if (drawfarpillar && cur_z >= back_height && cur_z < z_bridge - TILE_HEIGHT) {
00842 AddSortableSpriteToDraw(image, psid->pal, x_back, y_back, w, h, BB_HEIGHT_UNDER_BRIDGE - 5, cur_z, IsTransparencySet(TO_BRIDGES), 0, 0, -5);
00843 }
00844 }
00845 }
00846 }
00847
00857 static void DrawBridgeTramBits(int x, int y, byte z, int offset, bool overlay, bool head)
00858 {
00859 static const SpriteID tram_offsets[2][6] = { { 107, 108, 109, 110, 111, 112 }, { 4, 5, 15, 16, 17, 18 } };
00860 static const SpriteID back_offsets[6] = { 95, 96, 99, 102, 100, 101 };
00861 static const SpriteID front_offsets[6] = { 97, 98, 103, 106, 104, 105 };
00862
00863 static const uint size_x[6] = { 1, 16, 16, 1, 16, 1 };
00864 static const uint size_y[6] = { 16, 1, 1, 16, 1, 16 };
00865 static const uint front_bb_offset_x[6] = { 15, 0, 0, 15, 0, 15 };
00866 static const uint front_bb_offset_y[6] = { 0, 15, 15, 0, 15, 0 };
00867
00868
00869
00870 if (head || !IsInvisibilitySet(TO_BRIDGES)) {
00871 AddSortableSpriteToDraw(SPR_TRAMWAY_BASE + tram_offsets[overlay][offset], PAL_NONE,
00872 x, y, size_x[offset], size_y[offset], 0x28, z,
00873 !head && IsTransparencySet(TO_BRIDGES));
00874 }
00875
00876
00877 if (!IsInvisibilitySet(TO_CATENARY)) {
00878 AddSortableSpriteToDraw(SPR_TRAMWAY_BASE + back_offsets[offset], PAL_NONE,
00879 x, y, size_x[offset], size_y[offset], 0x28, z,
00880 IsTransparencySet(TO_CATENARY));
00881 }
00882
00883
00884 EndSpriteCombine();
00885 StartSpriteCombine();
00886
00887
00888 if (!IsInvisibilitySet(TO_CATENARY)) {
00889 AddSortableSpriteToDraw(SPR_TRAMWAY_BASE + front_offsets[offset], PAL_NONE,
00890 x, y, size_x[offset] + front_bb_offset_x[offset], size_y[offset] + front_bb_offset_y[offset], 0x28, z,
00891 IsTransparencySet(TO_CATENARY), front_bb_offset_x[offset], front_bb_offset_y[offset]);
00892 }
00893 }
00894
00908 static void DrawTile_TunnelBridge(TileInfo *ti)
00909 {
00910 SpriteID image;
00911 TransportType transport_type = GetTunnelBridgeTransportType(ti->tile);
00912 DiagDirection tunnelbridge_direction = GetTunnelBridgeDirection(ti->tile);
00913
00914 if (IsTunnel(ti->tile)) {
00915
00916
00917
00918
00919
00920
00921
00922
00923
00924 static const int _tunnel_BB[4][12] = {
00925
00926
00927 { 1, 0, -15, -14, 0, 15, 16, 1, 0, 1, 16, 15 },
00928 { 0, 1, -14, -15, 15, 0, 1, 16, 1, 0, 15, 16 },
00929 { 1, 0, -15, -14, 0, 15, 16, 1, 0, 1, 16, 15 },
00930 { 0, 1, -14, -15, 15, 0, 1, 16, 1, 0, 15, 16 },
00931 };
00932 const int *BB_data = _tunnel_BB[tunnelbridge_direction];
00933
00934 bool catenary = false;
00935
00936 if (transport_type == TRANSPORT_RAIL) {
00937 image = GetRailTypeInfo(GetRailType(ti->tile))->base_sprites.tunnel;
00938 } else {
00939 image = SPR_TUNNEL_ENTRY_REAR_ROAD;
00940 }
00941
00942 if (HasTunnelBridgeSnowOrDesert(ti->tile)) image += 32;
00943
00944 image += tunnelbridge_direction * 2;
00945 DrawGroundSprite(image, PAL_NONE);
00946
00947
00948 if (_game_mode != GM_MENU && _settings_client.gui.show_track_reservation && (transport_type == TRANSPORT_RAIL && HasTunnelBridgeReservation(ti->tile))) {
00949 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(ti->tile));
00950 DrawGroundSprite(DiagDirToAxis(tunnelbridge_direction) == AXIS_X ? rti->base_sprites.single_x : rti->base_sprites.single_y, PALETTE_CRASH);
00951 }
00952
00953 if (transport_type == TRANSPORT_ROAD) {
00954 RoadTypes rts = GetRoadTypes(ti->tile);
00955
00956 if (HasBit(rts, ROADTYPE_TRAM)) {
00957 static const SpriteID tunnel_sprites[2][4] = { { 28, 78, 79, 27 }, { 5, 76, 77, 4 } };
00958
00959 DrawGroundSprite(SPR_TRAMWAY_BASE + tunnel_sprites[rts - ROADTYPES_TRAM][tunnelbridge_direction], PAL_NONE);
00960
00961
00962 if (!IsInvisibilitySet(TO_CATENARY)) {
00963 catenary = true;
00964 StartSpriteCombine();
00965 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);
00966 }
00967 }
00968 } else {
00969 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(ti->tile));
00970 if (rti->UsesOverlay()) {
00971 SpriteID surface = GetCustomRailSprite(rti, ti->tile, RTSG_TUNNEL);
00972 if (surface != 0) DrawGroundSprite(surface + tunnelbridge_direction, PAL_NONE);
00973 }
00974
00975 if (HasCatenaryDrawn(GetRailType(ti->tile))) {
00976
00977 DrawCatenary(ti);
00978
00979 catenary = true;
00980 StartSpriteCombine();
00981
00982 DrawCatenaryOnTunnel(ti);
00983 }
00984 }
00985
00986 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);
00987
00988 if (catenary) EndSpriteCombine();
00989
00990
00991 AddSortableSpriteToDraw(SPR_EMPTY_BOUNDING_BOX, PAL_NONE, ti->x, ti->y, BB_data[6], BB_data[7], TILE_HEIGHT, ti->z);
00992 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);
00993
00994 DrawBridgeMiddle(ti);
00995 } else {
00996 const PalSpriteID *psid;
00997 int base_offset;
00998 bool ice = HasTunnelBridgeSnowOrDesert(ti->tile);
00999
01000 if (transport_type == TRANSPORT_RAIL) {
01001 base_offset = GetRailTypeInfo(GetRailType(ti->tile))->bridge_offset;
01002 assert(base_offset != 8);
01003 } else {
01004 base_offset = 8;
01005 }
01006
01007
01008 assert( (base_offset & 0x07) == 0x00);
01009
01010 DrawFoundation(ti, GetBridgeFoundation(ti->tileh, DiagDirToAxis(tunnelbridge_direction)));
01011
01012
01013 base_offset += (6 - tunnelbridge_direction) % 4;
01014
01015 if (ti->tileh == SLOPE_FLAT) base_offset += 4;
01016
01017
01018 if (transport_type != TRANSPORT_WATER) {
01019 psid = &GetBridgeSpriteTable(GetBridgeType(ti->tile), BRIDGE_PIECE_HEAD)[base_offset];
01020 } else {
01021 psid = _aqueduct_sprites + base_offset;
01022 }
01023
01024 if (!ice) {
01025 DrawClearLandTile(ti, 3);
01026 } else {
01027 DrawGroundSprite(SPR_FLAT_SNOW_DESERT_TILE + _tileh_to_sprite[ti->tileh], PAL_NONE);
01028 }
01029
01030
01031
01032
01033 if (transport_type == TRANSPORT_ROAD || transport_type == TRANSPORT_RAIL) StartSpriteCombine();
01034
01035
01036
01037
01038
01039 AddSortableSpriteToDraw(psid->sprite, psid->pal, ti->x, ti->y, 16, 16, ti->tileh == SLOPE_FLAT ? 0 : 8, ti->z);
01040
01041 if (transport_type == TRANSPORT_ROAD) {
01042 RoadTypes rts = GetRoadTypes(ti->tile);
01043
01044 if (HasBit(rts, ROADTYPE_TRAM)) {
01045 uint offset = tunnelbridge_direction;
01046 uint z = ti->z;
01047 if (ti->tileh != SLOPE_FLAT) {
01048 offset = (offset + 1) & 1;
01049 z += TILE_HEIGHT;
01050 } else {
01051 offset += 2;
01052 }
01053
01054 DrawBridgeTramBits(ti->x, ti->y, z, offset, HasBit(rts, ROADTYPE_ROAD), true);
01055 }
01056 EndSpriteCombine();
01057 } else if (transport_type == TRANSPORT_RAIL) {
01058 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(ti->tile));
01059 if (rti->UsesOverlay()) {
01060 SpriteID surface = GetCustomRailSprite(rti, ti->tile, RTSG_BRIDGE);
01061 if (surface != 0) {
01062 if (HasBridgeFlatRamp(ti->tileh, DiagDirToAxis(tunnelbridge_direction))) {
01063 AddSortableSpriteToDraw(surface + ((DiagDirToAxis(tunnelbridge_direction) == AXIS_X) ? RTBO_X : RTBO_Y), PAL_NONE, ti->x, ti->y, 16, 16, 0, ti->z + 8);
01064 } else {
01065 AddSortableSpriteToDraw(surface + RTBO_SLOPE + tunnelbridge_direction, PAL_NONE, ti->x, ti->y, 16, 16, 8, ti->z);
01066 }
01067 }
01068
01069
01070
01071 } else if (_game_mode != GM_MENU &&_settings_client.gui.show_track_reservation && HasTunnelBridgeReservation(ti->tile)) {
01072 if (HasBridgeFlatRamp(ti->tileh, DiagDirToAxis(tunnelbridge_direction))) {
01073 AddSortableSpriteToDraw(DiagDirToAxis(tunnelbridge_direction) == AXIS_X ? rti->base_sprites.single_x : rti->base_sprites.single_y, PALETTE_CRASH, ti->x, ti->y, 16, 16, 0, ti->z + 8);
01074 } else {
01075 AddSortableSpriteToDraw(rti->base_sprites.single_sloped + tunnelbridge_direction, PALETTE_CRASH, ti->x, ti->y, 16, 16, 8, ti->z);
01076 }
01077 }
01078 EndSpriteCombine();
01079 if (HasCatenaryDrawn(GetRailType(ti->tile))) {
01080 DrawCatenary(ti);
01081 }
01082 }
01083
01084 DrawBridgeMiddle(ti);
01085 }
01086 }
01087
01088
01106 static BridgePieces CalcBridgePiece(uint north, uint south)
01107 {
01108 if (north == 1) {
01109 return BRIDGE_PIECE_NORTH;
01110 } else if (south == 1) {
01111 return BRIDGE_PIECE_SOUTH;
01112 } else if (north < south) {
01113 return north & 1 ? BRIDGE_PIECE_INNER_SOUTH : BRIDGE_PIECE_INNER_NORTH;
01114 } else if (north > south) {
01115 return south & 1 ? BRIDGE_PIECE_INNER_NORTH : BRIDGE_PIECE_INNER_SOUTH;
01116 } else {
01117 return north & 1 ? BRIDGE_PIECE_MIDDLE_EVEN : BRIDGE_PIECE_MIDDLE_ODD;
01118 }
01119 }
01120
01121
01122 void DrawBridgeMiddle(const TileInfo *ti)
01123 {
01124
01125
01126
01127
01128
01129
01130
01131
01132
01133
01134
01135
01136
01137
01138
01139
01140
01141 static const int BRIDGE_Z_START = 3;
01142
01143 if (!IsBridgeAbove(ti->tile)) return;
01144
01145 TileIndex rampnorth = GetNorthernBridgeEnd(ti->tile);
01146 TileIndex rampsouth = GetSouthernBridgeEnd(ti->tile);
01147 TransportType transport_type = GetTunnelBridgeTransportType(rampsouth);
01148
01149 Axis axis = GetBridgeAxis(ti->tile);
01150 BridgePieces piece = CalcBridgePiece(
01151 GetTunnelBridgeLength(ti->tile, rampnorth) + 1,
01152 GetTunnelBridgeLength(ti->tile, rampsouth) + 1
01153 );
01154
01155 const PalSpriteID *psid;
01156 bool drawfarpillar;
01157 if (transport_type != TRANSPORT_WATER) {
01158 BridgeType type = GetBridgeType(rampsouth);
01159 drawfarpillar = !HasBit(GetBridgeSpec(type)->flags, 0);
01160
01161 uint base_offset;
01162 if (transport_type == TRANSPORT_RAIL) {
01163 base_offset = GetRailTypeInfo(GetRailType(rampsouth))->bridge_offset;
01164 } else {
01165 base_offset = 8;
01166 }
01167
01168 psid = base_offset + GetBridgeSpriteTable(type, piece);
01169 } else {
01170 drawfarpillar = true;
01171 psid = _aqueduct_sprites;
01172 }
01173
01174 if (axis != AXIS_X) psid += 4;
01175
01176 int x = ti->x;
01177 int y = ti->y;
01178 uint bridge_z = GetBridgeHeight(rampsouth);
01179 uint z = bridge_z - BRIDGE_Z_START;
01180
01181
01182 AddSortableSpriteToDraw(SPR_EMPTY_BOUNDING_BOX, PAL_NONE, x, y, 16, 16, 1, bridge_z - TILE_HEIGHT + BB_Z_SEPARATOR);
01183
01184
01185 if (transport_type == TRANSPORT_ROAD || transport_type == TRANSPORT_RAIL) StartSpriteCombine();
01186
01187
01188 if (!IsInvisibilitySet(TO_BRIDGES)) {
01189 if (axis == AXIS_X) {
01190 AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 16, 1, 0x28, z, IsTransparencySet(TO_BRIDGES), 0, 0, BRIDGE_Z_START);
01191 } else {
01192 AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 1, 16, 0x28, z, IsTransparencySet(TO_BRIDGES), 0, 0, BRIDGE_Z_START);
01193 }
01194 }
01195
01196 psid++;
01197
01198 if (transport_type == TRANSPORT_ROAD) {
01199 RoadTypes rts = GetRoadTypes(rampsouth);
01200
01201 if (HasBit(rts, ROADTYPE_TRAM)) {
01202
01203 DrawBridgeTramBits(x, y, bridge_z, axis ^ 1, HasBit(rts, ROADTYPE_ROAD), false);
01204 } else {
01205 EndSpriteCombine();
01206 StartSpriteCombine();
01207 }
01208 } else if (transport_type == TRANSPORT_RAIL) {
01209 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(rampsouth));
01210 if (rti->UsesOverlay()) {
01211 SpriteID surface = GetCustomRailSprite(rti, ti->tile, RTSG_BRIDGE);
01212 if (surface != 0) {
01213 AddSortableSpriteToDraw(surface + axis, PAL_NONE, x, y, 16, 16, 0, bridge_z, IsTransparencySet(TO_BRIDGES));
01214 }
01215 }
01216 EndSpriteCombine();
01217
01218 if (HasCatenaryDrawn(GetRailType(rampsouth))) {
01219 DrawCatenaryOnBridge(ti);
01220 }
01221 }
01222
01223
01224 if (!IsInvisibilitySet(TO_BRIDGES)) {
01225 if (axis == AXIS_X) {
01226 y += 12;
01227 if (psid->sprite & SPRITE_MASK) AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 16, 4, 0x28, z, IsTransparencySet(TO_BRIDGES), 0, 3, BRIDGE_Z_START);
01228 } else {
01229 x += 12;
01230 if (psid->sprite & SPRITE_MASK) AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 4, 16, 0x28, z, IsTransparencySet(TO_BRIDGES), 3, 0, BRIDGE_Z_START);
01231 }
01232 }
01233
01234
01235 if (transport_type == TRANSPORT_ROAD) EndSpriteCombine();
01236
01237
01238 if (IsInvisibilitySet(TO_BRIDGES)) return;
01239
01240 psid++;
01241 if (ti->z + 5 == z) {
01242
01243 if (psid->sprite != 0) {
01244 SpriteID image = psid->sprite;
01245 SpriteID pal = psid->pal;
01246 if (IsTransparencySet(TO_BRIDGES)) {
01247 SetBit(image, PALETTE_MODIFIER_TRANSPARENT);
01248 pal = PALETTE_TO_TRANSPARENT;
01249 }
01250
01251 DrawGroundSpriteAt(image, pal, x - ti->x, y - ti->y, z - ti->z);
01252 }
01253 } else if (_settings_client.gui.bridge_pillars) {
01254
01255 DrawBridgePillars(psid, ti, axis, drawfarpillar, x, y, z);
01256 }
01257 }
01258
01259
01260 static uint GetSlopeZ_TunnelBridge(TileIndex tile, uint x, uint y)
01261 {
01262 uint z;
01263 Slope tileh = GetTileSlope(tile, &z);
01264
01265 x &= 0xF;
01266 y &= 0xF;
01267
01268 if (IsTunnel(tile)) {
01269 uint pos = (DiagDirToAxis(GetTunnelBridgeDirection(tile)) == AXIS_X ? y : x);
01270
01271
01272 if (5 <= pos && pos <= 10) return z;
01273 } else {
01274 DiagDirection dir = GetTunnelBridgeDirection(tile);
01275 uint pos = (DiagDirToAxis(dir) == AXIS_X ? y : x);
01276
01277 z += ApplyFoundationToSlope(GetBridgeFoundation(tileh, DiagDirToAxis(dir)), &tileh);
01278
01279
01280 if (5 <= pos && pos <= 10) {
01281 uint delta;
01282
01283 if (tileh != SLOPE_FLAT) return z + TILE_HEIGHT;
01284
01285 switch (dir) {
01286 default: NOT_REACHED();
01287 case DIAGDIR_NE: delta = (TILE_SIZE - 1 - x) / 2; break;
01288 case DIAGDIR_SE: delta = y / 2; break;
01289 case DIAGDIR_SW: delta = x / 2; break;
01290 case DIAGDIR_NW: delta = (TILE_SIZE - 1 - y) / 2; break;
01291 }
01292 return z + 1 + delta;
01293 }
01294 }
01295
01296 return z + GetPartialZ(x, y, tileh);
01297 }
01298
01299 static Foundation GetFoundation_TunnelBridge(TileIndex tile, Slope tileh)
01300 {
01301 return IsTunnel(tile) ? FOUNDATION_NONE : GetBridgeFoundation(tileh, DiagDirToAxis(GetTunnelBridgeDirection(tile)));
01302 }
01303
01304 static void GetTileDesc_TunnelBridge(TileIndex tile, TileDesc *td)
01305 {
01306 TransportType tt = GetTunnelBridgeTransportType(tile);
01307
01308 if (IsTunnel(tile)) {
01309 td->str = (tt == TRANSPORT_RAIL) ? STR_LAI_TUNNEL_DESCRIPTION_RAILROAD : STR_LAI_TUNNEL_DESCRIPTION_ROAD;
01310 } else {
01311 td->str = (tt == TRANSPORT_WATER) ? STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT : GetBridgeSpec(GetBridgeType(tile))->transport_name[tt];
01312 }
01313 td->owner[0] = GetTileOwner(tile);
01314
01315 Owner road_owner = INVALID_OWNER;
01316 Owner tram_owner = INVALID_OWNER;
01317 RoadTypes rts = GetRoadTypes(tile);
01318 if (HasBit(rts, ROADTYPE_ROAD)) road_owner = GetRoadOwner(tile, ROADTYPE_ROAD);
01319 if (HasBit(rts, ROADTYPE_TRAM)) tram_owner = GetRoadOwner(tile, ROADTYPE_TRAM);
01320
01321
01322 if ((tram_owner != INVALID_OWNER && tram_owner != td->owner[0]) ||
01323 (road_owner != INVALID_OWNER && road_owner != td->owner[0])) {
01324 uint i = 1;
01325 if (road_owner != INVALID_OWNER) {
01326 td->owner_type[i] = STR_LAND_AREA_INFORMATION_ROAD_OWNER;
01327 td->owner[i] = road_owner;
01328 i++;
01329 }
01330 if (tram_owner != INVALID_OWNER) {
01331 td->owner_type[i] = STR_LAND_AREA_INFORMATION_TRAM_OWNER;
01332 td->owner[i] = tram_owner;
01333 }
01334 }
01335
01336 if (tt == TRANSPORT_RAIL) {
01337 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(tile));
01338 td->rail_speed = rti->max_speed;
01339
01340 if (!IsTunnel(tile)) {
01341 uint16 spd = GetBridgeSpec(GetBridgeType(tile))->speed;
01342 if (td->rail_speed == 0 || spd < td->rail_speed) {
01343 td->rail_speed = spd;
01344 }
01345 }
01346 }
01347 }
01348
01349
01350 static void TileLoop_TunnelBridge(TileIndex tile)
01351 {
01352 bool snow_or_desert = HasTunnelBridgeSnowOrDesert(tile);
01353 switch (_settings_game.game_creation.landscape) {
01354 case LT_ARCTIC:
01355 if (snow_or_desert != (GetTileZ(tile) > GetSnowLine())) {
01356 SetTunnelBridgeSnowOrDesert(tile, !snow_or_desert);
01357 MarkTileDirtyByTile(tile);
01358 }
01359 break;
01360
01361 case LT_TROPIC:
01362 if (GetTropicZone(tile) == TROPICZONE_DESERT && !snow_or_desert) {
01363 SetTunnelBridgeSnowOrDesert(tile, true);
01364 MarkTileDirtyByTile(tile);
01365 }
01366 break;
01367
01368 default:
01369 break;
01370 }
01371 }
01372
01373 static TrackStatus GetTileTrackStatus_TunnelBridge(TileIndex tile, TransportType mode, uint sub_mode, DiagDirection side)
01374 {
01375 TransportType transport_type = GetTunnelBridgeTransportType(tile);
01376 if (transport_type != mode || (transport_type == TRANSPORT_ROAD && (GetRoadTypes(tile) & sub_mode) == 0)) return 0;
01377
01378 DiagDirection dir = GetTunnelBridgeDirection(tile);
01379 if (side != INVALID_DIAGDIR && side != ReverseDiagDir(dir)) return 0;
01380 return CombineTrackStatus(TrackBitsToTrackdirBits(DiagDirToDiagTrackBits(dir)), TRACKDIR_BIT_NONE);
01381 }
01382
01383 static void ChangeTileOwner_TunnelBridge(TileIndex tile, Owner old_owner, Owner new_owner)
01384 {
01385 for (RoadType rt = ROADTYPE_ROAD; rt < ROADTYPE_END; rt++) {
01386
01387 if (GetRoadOwner(tile, rt) == old_owner) {
01388 SetRoadOwner(tile, rt, new_owner == INVALID_OWNER ? OWNER_NONE : new_owner);
01389 }
01390 }
01391
01392 if (!IsTileOwner(tile, old_owner)) return;
01393
01394 if (new_owner != INVALID_OWNER) {
01395 SetTileOwner(tile, new_owner);
01396 } else {
01397 if (DoCommand(tile, 0, 0, DC_EXEC | DC_BANKRUPT, CMD_LANDSCAPE_CLEAR).Failed()) {
01398
01399
01400
01401
01402 assert(GetTunnelBridgeTransportType(tile) != TRANSPORT_RAIL);
01403 SetTileOwner(tile, OWNER_NONE);
01404 }
01405 }
01406 }
01407
01408
01409 static const byte _tunnel_fractcoord_1[4] = {0x8E, 0x18, 0x81, 0xE8};
01410 static const byte _tunnel_fractcoord_2[4] = {0x81, 0x98, 0x87, 0x38};
01411 static const byte _tunnel_fractcoord_3[4] = {0x82, 0x88, 0x86, 0x48};
01412 static const byte _exit_tunnel_track[4] = {1, 2, 1, 2};
01413
01415 static const Trackdir _road_exit_tunnel_state[DIAGDIR_END] = {
01416 TRACKDIR_X_SW, TRACKDIR_Y_NW, TRACKDIR_X_NE, TRACKDIR_Y_SE
01417 };
01418 static const byte _road_exit_tunnel_frame[4] = {2, 7, 9, 4};
01419
01420 static const byte _tunnel_fractcoord_4[4] = {0x52, 0x85, 0x98, 0x29};
01421 static const byte _tunnel_fractcoord_5[4] = {0x92, 0x89, 0x58, 0x25};
01422 static const byte _tunnel_fractcoord_6[4] = {0x92, 0x89, 0x56, 0x45};
01423 static const byte _tunnel_fractcoord_7[4] = {0x52, 0x85, 0x96, 0x49};
01424
01425 static VehicleEnterTileStatus VehicleEnter_TunnelBridge(Vehicle *v, TileIndex tile, int x, int y)
01426 {
01427 int z = GetSlopeZ(x, y) - v->z_pos;
01428
01429 if (abs(z) > 2) return VETSB_CANNOT_ENTER;
01430 const DiagDirection dir = GetTunnelBridgeDirection(tile);
01431
01432 if (IsTunnel(tile)) {
01433 byte fc;
01434 DiagDirection vdir;
01435
01436 if (v->type == VEH_TRAIN) {
01437 Train *t = Train::From(v);
01438 fc = (x & 0xF) + (y << 4);
01439
01440 vdir = DirToDiagDir(t->direction);
01441
01442 if (t->track != TRACK_BIT_WORMHOLE && dir == vdir) {
01443 if (t->IsFrontEngine() && fc == _tunnel_fractcoord_1[dir]) {
01444 if (!PlayVehicleSound(t, VSE_TUNNEL) && RailVehInfo(t->engine_type)->engclass == 0) {
01445 SndPlayVehicleFx(SND_05_TRAIN_THROUGH_TUNNEL, v);
01446 }
01447 return VETSB_CONTINUE;
01448 }
01449 if (fc == _tunnel_fractcoord_2[dir]) {
01450 t->tile = tile;
01451 t->track = TRACK_BIT_WORMHOLE;
01452 t->vehstatus |= VS_HIDDEN;
01453 return VETSB_ENTERED_WORMHOLE;
01454 }
01455 }
01456
01457 if (dir == ReverseDiagDir(vdir) && fc == _tunnel_fractcoord_3[dir] && z == 0) {
01458
01459 t->tile = tile;
01460 t->track = (TrackBits)_exit_tunnel_track[dir];
01461 assert(t->track);
01462 t->vehstatus &= ~VS_HIDDEN;
01463 return VETSB_ENTERED_WORMHOLE;
01464 }
01465 } else if (v->type == VEH_ROAD) {
01466 RoadVehicle *rv = RoadVehicle::From(v);
01467 fc = (x & 0xF) + (y << 4);
01468 vdir = DirToDiagDir(v->direction);
01469
01470
01471 if (rv->state != RVSB_WORMHOLE && dir == vdir) {
01472 if (fc == _tunnel_fractcoord_4[dir] ||
01473 fc == _tunnel_fractcoord_5[dir]) {
01474 rv->tile = tile;
01475 rv->state = RVSB_WORMHOLE;
01476 rv->vehstatus |= VS_HIDDEN;
01477 return VETSB_ENTERED_WORMHOLE;
01478 } else {
01479 return VETSB_CONTINUE;
01480 }
01481 }
01482
01483 if (dir == ReverseDiagDir(vdir) && (
01484
01485 fc == _tunnel_fractcoord_6[dir] ||
01486 fc == _tunnel_fractcoord_7[dir]
01487 ) &&
01488 z == 0) {
01489 rv->tile = tile;
01490 rv->state = _road_exit_tunnel_state[dir];
01491 rv->frame = _road_exit_tunnel_frame[dir];
01492 rv->vehstatus &= ~VS_HIDDEN;
01493 return VETSB_ENTERED_WORMHOLE;
01494 }
01495 }
01496 } else {
01497
01498 if (v->IsPrimaryVehicle() && v->type != VEH_SHIP) {
01499
01500 uint16 spd = GetBridgeSpec(GetBridgeType(tile))->speed;
01501
01502 if (v->type == VEH_ROAD) spd *= 2;
01503 if (v->cur_speed > spd) v->cur_speed = spd;
01504 }
01505
01506 if (DirToDiagDir(v->direction) == dir) {
01507 switch (dir) {
01508 default: NOT_REACHED();
01509 case DIAGDIR_NE: if ((x & 0xF) != 0) return VETSB_CONTINUE; break;
01510 case DIAGDIR_SE: if ((y & 0xF) != TILE_SIZE - 1) return VETSB_CONTINUE; break;
01511 case DIAGDIR_SW: if ((x & 0xF) != TILE_SIZE - 1) return VETSB_CONTINUE; break;
01512 case DIAGDIR_NW: if ((y & 0xF) != 0) return VETSB_CONTINUE; break;
01513 }
01514 switch (v->type) {
01515 case VEH_TRAIN: {
01516 Train *t = Train::From(v);
01517 t->track = TRACK_BIT_WORMHOLE;
01518 ClrBit(t->flags, VRF_GOINGUP);
01519 ClrBit(t->flags, VRF_GOINGDOWN);
01520 } break;
01521
01522 case VEH_ROAD:
01523 RoadVehicle::From(v)->state = RVSB_WORMHOLE;
01524 break;
01525
01526 case VEH_SHIP:
01527 Ship::From(v)->state = TRACK_BIT_WORMHOLE;
01528 break;
01529
01530 default: NOT_REACHED();
01531 }
01532 return VETSB_ENTERED_WORMHOLE;
01533 } else if (DirToDiagDir(v->direction) == ReverseDiagDir(dir)) {
01534 v->tile = tile;
01535 switch (v->type) {
01536 case VEH_TRAIN: {
01537 Train *t = Train::From(v);
01538 if (t->track == TRACK_BIT_WORMHOLE) {
01539 t->track = (DiagDirToAxis(dir) == AXIS_X ? TRACK_BIT_X : TRACK_BIT_Y);
01540 return VETSB_ENTERED_WORMHOLE;
01541 }
01542 } break;
01543
01544 case VEH_ROAD: {
01545 RoadVehicle *rv = RoadVehicle::From(v);
01546 if (rv->state == RVSB_WORMHOLE) {
01547 rv->state = _road_exit_tunnel_state[dir];
01548 rv->frame = 0;
01549 return VETSB_ENTERED_WORMHOLE;
01550 }
01551 } break;
01552
01553 case VEH_SHIP: {
01554 Ship *ship = Ship::From(v);
01555 if (ship->state == TRACK_BIT_WORMHOLE) {
01556 ship->state = (DiagDirToAxis(dir) == AXIS_X ? TRACK_BIT_X : TRACK_BIT_Y);
01557 return VETSB_ENTERED_WORMHOLE;
01558 }
01559 } break;
01560
01561 default: NOT_REACHED();
01562 }
01563 }
01564 }
01565 return VETSB_CONTINUE;
01566 }
01567
01568 static CommandCost TerraformTile_TunnelBridge(TileIndex tile, DoCommandFlag flags, uint z_new, Slope tileh_new)
01569 {
01570 if (_settings_game.construction.build_on_slopes && AutoslopeEnabled() && IsBridge(tile) && GetTunnelBridgeTransportType(tile) != TRANSPORT_WATER) {
01571 DiagDirection direction = GetTunnelBridgeDirection(tile);
01572 Axis axis = DiagDirToAxis(direction);
01573 CommandCost res;
01574 uint z_old;
01575 Slope tileh_old = GetTileSlope(tile, &z_old);
01576
01577
01578 if ((direction == DIAGDIR_NW) || (direction == DIAGDIR_NE)) {
01579 CheckBridgeSlopeSouth(axis, &tileh_old, &z_old);
01580 res = CheckBridgeSlopeSouth(axis, &tileh_new, &z_new);
01581 } else {
01582 CheckBridgeSlopeNorth(axis, &tileh_old, &z_old);
01583 res = CheckBridgeSlopeNorth(axis, &tileh_new, &z_new);
01584 }
01585
01586
01587 if (res.Succeeded() && (z_old == z_new) && (tileh_old == tileh_new)) return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
01588 }
01589
01590 return DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
01591 }
01592
01593 extern const TileTypeProcs _tile_type_tunnelbridge_procs = {
01594 DrawTile_TunnelBridge,
01595 GetSlopeZ_TunnelBridge,
01596 ClearTile_TunnelBridge,
01597 NULL,
01598 GetTileDesc_TunnelBridge,
01599 GetTileTrackStatus_TunnelBridge,
01600 NULL,
01601 NULL,
01602 TileLoop_TunnelBridge,
01603 ChangeTileOwner_TunnelBridge,
01604 NULL,
01605 VehicleEnter_TunnelBridge,
01606 GetFoundation_TunnelBridge,
01607 TerraformTile_TunnelBridge,
01608 };