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00015 #include "stdafx.h"
00016 #include "rail_map.h"
00017 #include "landscape.h"
00018 #include "unmovable_map.h"
00019 #include "viewport_func.h"
00020 #include "command_func.h"
00021 #include "town.h"
00022 #include "variables.h"
00023 #include "train.h"
00024 #include "ship.h"
00025 #include "roadveh.h"
00026 #include "water_map.h"
00027 #include "pathfinder/yapf/yapf_cache.h"
00028 #include "newgrf_sound.h"
00029 #include "autoslope.h"
00030 #include "tunnelbridge_map.h"
00031 #include "strings_func.h"
00032 #include "date_func.h"
00033 #include "functions.h"
00034 #include "vehicle_func.h"
00035 #include "sound_func.h"
00036 #include "tunnelbridge.h"
00037 #include "cheat_type.h"
00038 #include "elrail_func.h"
00039 #include "landscape_type.h"
00040 #include "pbs.h"
00041 #include "company_base.h"
00042 #include "engine_base.h"
00043 #include "newgrf_railtype.h"
00044
00045 #include "table/sprites.h"
00046 #include "table/strings.h"
00047 #include "table/bridge_land.h"
00048
00049 BridgeSpec _bridge[MAX_BRIDGES];
00050 TileIndex _build_tunnel_endtile;
00051
00053 void ResetBridges()
00054 {
00055
00056 for (BridgeType i = 0; i < MAX_BRIDGES; i++) {
00057 if (_bridge[i].sprite_table != NULL) {
00058 for (BridgePieces j = BRIDGE_PIECE_NORTH; j < BRIDGE_PIECE_INVALID; j++) free(_bridge[i].sprite_table[j]);
00059 free(_bridge[i].sprite_table);
00060 }
00061 }
00062
00063
00064 memset(&_bridge, 0, sizeof(_bridge));
00065
00066 memcpy(&_bridge, &_orig_bridge, sizeof(_orig_bridge));
00067 }
00068
00072 int CalcBridgeLenCostFactor(int x)
00073 {
00074 int n;
00075 int r;
00076
00077 if (x < 2) return x;
00078 x -= 2;
00079 for (n = 0, r = 2;; n++) {
00080 if (x <= n) return r + x * n;
00081 r += n * n;
00082 x -= n;
00083 }
00084 }
00085
00086 Foundation GetBridgeFoundation(Slope tileh, Axis axis)
00087 {
00088 if ((tileh == SLOPE_FLAT) ||
00089 (((tileh == SLOPE_NE) || (tileh == SLOPE_SW)) && (axis == AXIS_X)) ||
00090 (((tileh == SLOPE_NW) || (tileh == SLOPE_SE)) && (axis == AXIS_Y))) return FOUNDATION_NONE;
00091
00092 return (HasSlopeHighestCorner(tileh) ? InclinedFoundation(axis) : FlatteningFoundation(tileh));
00093 }
00094
00102 bool HasBridgeFlatRamp(Slope tileh, Axis axis)
00103 {
00104 ApplyFoundationToSlope(GetBridgeFoundation(tileh, axis), &tileh);
00105
00106 return (tileh != SLOPE_FLAT);
00107 }
00108
00109 static inline const PalSpriteID *GetBridgeSpriteTable(int index, BridgePieces table)
00110 {
00111 const BridgeSpec *bridge = GetBridgeSpec(index);
00112 assert(table < BRIDGE_PIECE_INVALID);
00113 if (bridge->sprite_table == NULL || bridge->sprite_table[table] == NULL) {
00114 return _bridge_sprite_table[index][table];
00115 } else {
00116 return bridge->sprite_table[table];
00117 }
00118 }
00119
00120
00129 static CommandCost CheckBridgeSlopeNorth(Axis axis, Slope *tileh, uint *z)
00130 {
00131 Foundation f = GetBridgeFoundation(*tileh, axis);
00132 *z += ApplyFoundationToSlope(f, tileh);
00133
00134 Slope valid_inclined = (axis == AXIS_X ? SLOPE_NE : SLOPE_NW);
00135 if ((*tileh != SLOPE_FLAT) && (*tileh != valid_inclined)) return CMD_ERROR;
00136
00137 if (f == FOUNDATION_NONE) return CommandCost();
00138
00139 return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
00140 }
00141
00150 static CommandCost CheckBridgeSlopeSouth(Axis axis, Slope *tileh, uint *z)
00151 {
00152 Foundation f = GetBridgeFoundation(*tileh, axis);
00153 *z += ApplyFoundationToSlope(f, tileh);
00154
00155 Slope valid_inclined = (axis == AXIS_X ? SLOPE_SW : SLOPE_SE);
00156 if ((*tileh != SLOPE_FLAT) && (*tileh != valid_inclined)) return CMD_ERROR;
00157
00158 if (f == FOUNDATION_NONE) return CommandCost();
00159
00160 return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
00161 }
00162
00163 bool CheckBridge_Stuff(BridgeType bridge_type, uint bridge_len, DoCommandFlag flags)
00164 {
00165 if (flags & DC_QUERY_COST) {
00166 return bridge_len <= (_settings_game.construction.longbridges ? 100U : 16U);
00167 }
00168
00169 if (bridge_type >= MAX_BRIDGES) return false;
00170
00171 const BridgeSpec *b = GetBridgeSpec(bridge_type);
00172 if (b->avail_year > _cur_year) return false;
00173
00174 uint max = b->max_length;
00175 if (max >= 16 && _settings_game.construction.longbridges) max = 100;
00176
00177 return b->min_length <= bridge_len && bridge_len <= max;
00178 }
00179
00191 CommandCost CmdBuildBridge(TileIndex end_tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00192 {
00193 RailType railtype = INVALID_RAILTYPE;
00194 RoadTypes roadtypes = ROADTYPES_NONE;
00195 CommandCost cost(EXPENSES_CONSTRUCTION);
00196 Owner owner;
00197
00198
00199 BridgeType bridge_type = GB(p2, 0, 8);
00200
00201 if (p1 >= MapSize()) return CMD_ERROR;
00202
00203 TransportType transport_type = (TransportType)GB(p2, 15, 2);
00204
00205
00206 switch (transport_type) {
00207 case TRANSPORT_ROAD:
00208 roadtypes = (RoadTypes)GB(p2, 8, 2);
00209 if (!AreValidRoadTypes(roadtypes) || !HasRoadTypesAvail(_current_company, roadtypes)) return CMD_ERROR;
00210 break;
00211
00212 case TRANSPORT_RAIL:
00213 railtype = (RailType)GB(p2, 8, 7);
00214 if (!ValParamRailtype(railtype)) return CMD_ERROR;
00215 break;
00216
00217 case TRANSPORT_WATER:
00218 break;
00219
00220 default:
00221
00222 return CMD_ERROR;
00223 }
00224 TileIndex tile_start = p1;
00225 TileIndex tile_end = end_tile;
00226
00227 if (tile_start == tile_end) {
00228 return_cmd_error(STR_ERROR_CAN_T_START_AND_END_ON);
00229 }
00230
00231 Axis direction;
00232 if (TileX(tile_start) == TileX(tile_end)) {
00233 direction = AXIS_Y;
00234 } else if (TileY(tile_start) == TileY(tile_end)) {
00235 direction = AXIS_X;
00236 } else {
00237 return_cmd_error(STR_ERROR_START_AND_END_MUST_BE_IN);
00238 }
00239
00240 if (tile_end < tile_start) Swap(tile_start, tile_end);
00241
00242 uint bridge_len = GetTunnelBridgeLength(tile_start, tile_end);
00243 if (transport_type != TRANSPORT_WATER) {
00244
00245 if (!CheckBridge_Stuff(bridge_type, bridge_len, flags)) return_cmd_error(STR_ERROR_CAN_T_BUILD_BRIDGE_HERE);
00246 } else {
00247 if (bridge_len > (_settings_game.construction.longbridges ? 100U : 16U)) return_cmd_error(STR_ERROR_CAN_T_BUILD_BRIDGE_HERE);
00248 }
00249
00250
00251 if (IsWaterTile(tile_start) || IsWaterTile(tile_end)) {
00252 return_cmd_error(STR_ERROR_ENDS_OF_BRIDGE_MUST_BOTH);
00253 }
00254
00255 uint z_start;
00256 uint z_end;
00257 Slope tileh_start = GetTileSlope(tile_start, &z_start);
00258 Slope tileh_end = GetTileSlope(tile_end, &z_end);
00259 bool pbs_reservation = false;
00260
00261 CommandCost terraform_cost_north = CheckBridgeSlopeNorth(direction, &tileh_start, &z_start);
00262 CommandCost terraform_cost_south = CheckBridgeSlopeSouth(direction, &tileh_end, &z_end);
00263
00264 if (z_start != z_end) return_cmd_error(STR_ERROR_BRIDGEHEADS_NOT_SAME_HEIGHT);
00265
00266 if (IsBridgeTile(tile_start) && IsBridgeTile(tile_end) &&
00267 GetOtherBridgeEnd(tile_start) == tile_end &&
00268 GetTunnelBridgeTransportType(tile_start) == transport_type) {
00269
00270
00271
00272 if (transport_type == TRANSPORT_RAIL && GetRailType(tile_start) != railtype) {
00273 return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00274 }
00275
00276
00277 if (!(flags & DC_QUERY_COST) && IsTileOwner(tile_start, OWNER_TOWN) &&
00278 GetBridgeSpec(bridge_type)->speed < GetBridgeSpec(GetBridgeType(tile_start))->speed) {
00279 Town *t = ClosestTownFromTile(tile_start, UINT_MAX);
00280
00281 if (t == NULL) {
00282 return CMD_ERROR;
00283 } else {
00284 SetDParam(0, t->index);
00285 return_cmd_error(STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS);
00286 }
00287 }
00288
00289
00290 if (!(flags & DC_QUERY_COST) && bridge_type == GetBridgeType(tile_start)) {
00291 return_cmd_error(STR_ERROR_ALREADY_BUILT);
00292 }
00293
00294
00295 if (!IsTileOwner(tile_start, _current_company) && !IsTileOwner(tile_start, OWNER_TOWN)) {
00296 return_cmd_error(STR_ERROR_AREA_IS_OWNED_BY_ANOTHER);
00297 }
00298
00299 cost.AddCost((bridge_len + 1) * _price[PR_CLEAR_BRIDGE]);
00300 owner = GetTileOwner(tile_start);
00301
00302 switch (transport_type) {
00303 case TRANSPORT_RAIL:
00304
00305 pbs_reservation = HasTunnelBridgeReservation(tile_start);
00306 break;
00307
00308 case TRANSPORT_ROAD:
00309
00310 roadtypes |= GetRoadTypes(tile_start);
00311 break;
00312
00313 default: break;
00314 }
00315 } else {
00316
00317
00318 bool allow_on_slopes = (_settings_game.construction.build_on_slopes && transport_type != TRANSPORT_WATER);
00319
00320
00321 CommandCost ret = DoCommand(tile_start, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00322 if (ret.Failed()) return ret;
00323 cost = ret;
00324
00325 if (terraform_cost_north.Failed() || (terraform_cost_north.GetCost() != 0 && !allow_on_slopes))
00326 return_cmd_error(STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION);
00327 cost.AddCost(terraform_cost_north);
00328
00329
00330 ret = DoCommand(tile_end, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00331 if (ret.Failed()) return ret;
00332 cost.AddCost(ret);
00333
00334
00335 if (terraform_cost_south.Failed() || (terraform_cost_south.GetCost() != 0 && !allow_on_slopes))
00336 return_cmd_error(STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION);
00337 cost.AddCost(terraform_cost_south);
00338
00339 if (transport_type == TRANSPORT_WATER && (tileh_start == SLOPE_FLAT || tileh_end == SLOPE_FLAT)) return_cmd_error(STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION);
00340
00341 const TileIndex heads[] = {tile_start, tile_end};
00342 for (int i = 0; i < 2; i++) {
00343 if (MayHaveBridgeAbove(heads[i])) {
00344 if (IsBridgeAbove(heads[i])) {
00345 TileIndex north_head = GetNorthernBridgeEnd(heads[i]);
00346
00347 if (direction == GetBridgeAxis(heads[i])) return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00348
00349 if (z_start + TILE_HEIGHT == GetBridgeHeight(north_head)) {
00350 return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00351 }
00352 }
00353 }
00354 }
00355
00356 TileIndexDiff delta = (direction == AXIS_X ? TileDiffXY(1, 0) : TileDiffXY(0, 1));
00357 for (TileIndex tile = tile_start + delta; tile != tile_end; tile += delta) {
00358 if (GetTileMaxZ(tile) > z_start) return_cmd_error(STR_ERROR_BRIDGE_TOO_LOW_FOR_TERRAIN);
00359
00360 if (MayHaveBridgeAbove(tile) && IsBridgeAbove(tile)) {
00361
00362 return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00363 }
00364
00365 switch (GetTileType(tile)) {
00366 case MP_WATER:
00367 if (!IsWater(tile) && !IsCoast(tile)) goto not_valid_below;
00368 break;
00369
00370 case MP_RAILWAY:
00371 if (!IsPlainRail(tile)) goto not_valid_below;
00372 break;
00373
00374 case MP_ROAD:
00375 if (IsRoadDepot(tile)) goto not_valid_below;
00376 break;
00377
00378 case MP_TUNNELBRIDGE:
00379 if (IsTunnel(tile)) break;
00380 if (direction == DiagDirToAxis(GetTunnelBridgeDirection(tile))) goto not_valid_below;
00381 if (z_start < GetBridgeHeight(tile)) goto not_valid_below;
00382 break;
00383
00384 case MP_UNMOVABLE:
00385 if (!IsOwnedLand(tile)) goto not_valid_below;
00386 break;
00387
00388 case MP_CLEAR:
00389 break;
00390
00391 default:
00392 not_valid_below:;
00393
00394 ret = DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00395 if (ret.Failed()) return ret;
00396 cost.AddCost(ret);
00397 break;
00398 }
00399
00400 if (flags & DC_EXEC) {
00401
00402
00403
00404 SetBridgeMiddle(tile, direction);
00405 }
00406 }
00407
00408 owner = _current_company;
00409 }
00410
00411
00412 if (flags & DC_EXEC) {
00413 DiagDirection dir = AxisToDiagDir(direction);
00414
00415 switch (transport_type) {
00416 case TRANSPORT_RAIL:
00417 MakeRailBridgeRamp(tile_start, owner, bridge_type, dir, railtype);
00418 MakeRailBridgeRamp(tile_end, owner, bridge_type, ReverseDiagDir(dir), railtype);
00419 SetTunnelBridgeReservation(tile_start, pbs_reservation);
00420 SetTunnelBridgeReservation(tile_end, pbs_reservation);
00421 break;
00422
00423 case TRANSPORT_ROAD:
00424 MakeRoadBridgeRamp(tile_start, owner, bridge_type, dir, roadtypes);
00425 MakeRoadBridgeRamp(tile_end, owner, bridge_type, ReverseDiagDir(dir), roadtypes);
00426 break;
00427
00428 case TRANSPORT_WATER:
00429 MakeAqueductBridgeRamp(tile_start, owner, dir);
00430 MakeAqueductBridgeRamp(tile_end, owner, ReverseDiagDir(dir));
00431 break;
00432
00433 default:
00434 NOT_REACHED();
00435 }
00436
00437
00438 TileIndexDiff delta = (direction == AXIS_X ? TileDiffXY(1, 0) : TileDiffXY(0, 1));
00439 for (TileIndex tile = tile_start; tile <= tile_end; tile += delta) {
00440 MarkTileDirtyByTile(tile);
00441 }
00442 }
00443
00444 if ((flags & DC_EXEC) && transport_type == TRANSPORT_RAIL) {
00445 Track track = AxisToTrack(direction);
00446 AddSideToSignalBuffer(tile_start, INVALID_DIAGDIR, _current_company);
00447 YapfNotifyTrackLayoutChange(tile_start, track);
00448 }
00449
00450
00451
00452
00453
00454 Company *c = Company::GetIfValid(_current_company);
00455 if (!(flags & DC_QUERY_COST) || (c != NULL && c->is_ai)) {
00456 bridge_len += 2;
00457
00458 if (c != NULL) bridge_len = CalcBridgeLenCostFactor(bridge_len);
00459
00460 cost.AddCost((int64)bridge_len * _price[PR_BUILD_BRIDGE] * GetBridgeSpec(bridge_type)->price >> 8);
00461
00462
00463 if (transport_type == TRANSPORT_WATER) cost.AddCost((int64)bridge_len * _price[PR_CLEAR_WATER]);
00464 }
00465
00466 return cost;
00467 }
00468
00469
00478 CommandCost CmdBuildTunnel(TileIndex start_tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00479 {
00480 TransportType transport_type = (TransportType)GB(p1, 9, 1);
00481 CommandCost cost(EXPENSES_CONSTRUCTION);
00482
00483 _build_tunnel_endtile = 0;
00484 if (transport_type == TRANSPORT_RAIL) {
00485 if (!ValParamRailtype((RailType)p1)) return CMD_ERROR;
00486 } else {
00487 const RoadTypes rts = (RoadTypes)GB(p1, 0, 2);
00488 if (!AreValidRoadTypes(rts) || !HasRoadTypesAvail(_current_company, rts)) return CMD_ERROR;
00489 }
00490
00491 uint start_z;
00492 uint end_z;
00493 Slope start_tileh = GetTileSlope(start_tile, &start_z);
00494 DiagDirection direction = GetInclinedSlopeDirection(start_tileh);
00495 if (direction == INVALID_DIAGDIR) return_cmd_error(STR_ERROR_SITE_UNSUITABLE_FOR_TUNNEL);
00496
00497 if (IsWaterTile(start_tile)) return_cmd_error(STR_ERROR_CAN_T_BUILD_ON_WATER);
00498
00499 CommandCost ret = DoCommand(start_tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00500 if (ret.Failed()) return ret;
00501
00502
00503
00504
00505
00506
00507 TileIndexDiff delta = TileOffsByDiagDir(direction);
00508 DiagDirection tunnel_in_way_dir;
00509 if (DiagDirToAxis(direction) == AXIS_Y) {
00510 tunnel_in_way_dir = (TileX(start_tile) < (MapMaxX() / 2)) ? DIAGDIR_SW : DIAGDIR_NE;
00511 } else {
00512 tunnel_in_way_dir = (TileY(start_tile) < (MapMaxX() / 2)) ? DIAGDIR_SE : DIAGDIR_NW;
00513 }
00514
00515 TileIndex end_tile = start_tile;
00516
00517
00518 int tiles_coef = 3;
00519
00520 int tiles = 0;
00521
00522 int tiles_bump = 25;
00523
00524 Slope end_tileh;
00525 for (;;) {
00526 end_tile += delta;
00527 if (!IsValidTile(end_tile)) return_cmd_error(STR_ERROR_TUNNEL_THROUGH_MAP_BORDER);
00528 end_tileh = GetTileSlope(end_tile, &end_z);
00529
00530 if (start_z == end_z) break;
00531
00532 if (!_cheats.crossing_tunnels.value && IsTunnelInWayDir(end_tile, start_z, tunnel_in_way_dir)) {
00533 return_cmd_error(STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY);
00534 }
00535
00536 tiles++;
00537 if (tiles == tiles_bump) {
00538 tiles_coef++;
00539 tiles_bump *= 2;
00540 }
00541
00542 cost.AddCost(_price[PR_BUILD_TUNNEL]);
00543 cost.AddCost(cost.GetCost() >> tiles_coef);
00544 }
00545
00546
00547 cost.AddCost(_price[PR_BUILD_TUNNEL]);
00548 cost.AddCost(ret);
00549
00550
00551 _build_tunnel_endtile = end_tile;
00552
00553 if (IsWaterTile(end_tile)) return_cmd_error(STR_ERROR_CAN_T_BUILD_ON_WATER);
00554
00555
00556 if (end_tileh != ComplementSlope(start_tileh)) {
00557
00558
00559
00560
00561 ret = DoCommand(end_tile, 0, 0, DC_AUTO, CMD_LANDSCAPE_CLEAR);
00562 if (ret.Failed()) return_cmd_error(STR_ERROR_UNABLE_TO_EXCAVATE_LAND);
00563
00564 ret = DoCommand(end_tile, end_tileh & start_tileh, 0, flags, CMD_TERRAFORM_LAND);
00565 if (ret.Failed()) return_cmd_error(STR_ERROR_UNABLE_TO_EXCAVATE_LAND);
00566 } else {
00567 ret = DoCommand(end_tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00568 if (ret.Failed()) return ret;
00569 }
00570 cost.AddCost(_price[PR_BUILD_TUNNEL]);
00571 cost.AddCost(ret);
00572
00573 if (flags & DC_EXEC) {
00574 if (transport_type == TRANSPORT_RAIL) {
00575 MakeRailTunnel(start_tile, _current_company, direction, (RailType)GB(p1, 0, 4));
00576 MakeRailTunnel(end_tile, _current_company, ReverseDiagDir(direction), (RailType)GB(p1, 0, 4));
00577 AddSideToSignalBuffer(start_tile, INVALID_DIAGDIR, _current_company);
00578 YapfNotifyTrackLayoutChange(start_tile, DiagDirToDiagTrack(direction));
00579 } else {
00580 MakeRoadTunnel(start_tile, _current_company, direction, (RoadTypes)GB(p1, 0, 2));
00581 MakeRoadTunnel(end_tile, _current_company, ReverseDiagDir(direction), (RoadTypes)GB(p1, 0, 2));
00582 }
00583 }
00584
00585 return cost;
00586 }
00587
00588
00589 static inline bool CheckAllowRemoveTunnelBridge(TileIndex tile)
00590 {
00591
00592 if (_current_company == OWNER_WATER || _game_mode == GM_EDITOR) return true;
00593
00594 switch (GetTunnelBridgeTransportType(tile)) {
00595 case TRANSPORT_ROAD: {
00596 RoadTypes rts = GetRoadTypes(tile);
00597 Owner road_owner = _current_company;
00598 Owner tram_owner = _current_company;
00599
00600 if (HasBit(rts, ROADTYPE_ROAD)) road_owner = GetRoadOwner(tile, ROADTYPE_ROAD);
00601 if (HasBit(rts, ROADTYPE_TRAM)) tram_owner = GetRoadOwner(tile, ROADTYPE_TRAM);
00602
00603
00604 if (road_owner == OWNER_TOWN && !(_settings_game.construction.extra_dynamite || _cheats.magic_bulldozer.value)) return CheckTileOwnership(tile);
00605 if (road_owner == OWNER_NONE || road_owner == OWNER_TOWN) road_owner = _current_company;
00606 if (tram_owner == OWNER_NONE) tram_owner = _current_company;
00607
00608 return CheckOwnership(road_owner, tile) && CheckOwnership(tram_owner, tile);
00609 }
00610
00611 case TRANSPORT_RAIL:
00612 case TRANSPORT_WATER:
00613 return CheckOwnership(GetTileOwner(tile));
00614
00615 default: NOT_REACHED();
00616 }
00617 }
00618
00619 static CommandCost DoClearTunnel(TileIndex tile, DoCommandFlag flags)
00620 {
00621 Town *t = NULL;
00622 TileIndex endtile;
00623
00624 if (!CheckAllowRemoveTunnelBridge(tile)) return CMD_ERROR;
00625
00626 endtile = GetOtherTunnelEnd(tile);
00627
00628 if (HasVehicleOnTunnelBridge(tile, endtile)) return CMD_ERROR;
00629
00630 _build_tunnel_endtile = endtile;
00631
00632 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00633 t = ClosestTownFromTile(tile, UINT_MAX);
00634
00635
00636
00637 if (!CheckforTownRating(flags, t, TUNNELBRIDGE_REMOVE)) {
00638 SetDParam(0, t->index);
00639 return_cmd_error(STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS);
00640 }
00641 }
00642
00643
00644
00645 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00646 ChangeTownRating(t, RATING_TUNNEL_BRIDGE_DOWN_STEP, RATING_TUNNEL_BRIDGE_MINIMUM, flags);
00647 }
00648
00649 if (flags & DC_EXEC) {
00650 if (GetTunnelBridgeTransportType(tile) == TRANSPORT_RAIL) {
00651
00652 DiagDirection dir = GetTunnelBridgeDirection(tile);
00653 Track track = DiagDirToDiagTrack(dir);
00654 Owner owner = GetTileOwner(tile);
00655
00656 Train *v = NULL;
00657 if (HasTunnelBridgeReservation(tile)) {
00658 v = GetTrainForReservation(tile, track);
00659 if (v != NULL) FreeTrainTrackReservation(v);
00660 }
00661
00662 DoClearSquare(tile);
00663 DoClearSquare(endtile);
00664
00665
00666 AddSideToSignalBuffer(tile, ReverseDiagDir(dir), owner);
00667 AddSideToSignalBuffer(endtile, dir, owner);
00668
00669 YapfNotifyTrackLayoutChange(tile, track);
00670 YapfNotifyTrackLayoutChange(endtile, track);
00671
00672 if (v != NULL) TryPathReserve(v);
00673 } else {
00674 DoClearSquare(tile);
00675 DoClearSquare(endtile);
00676 }
00677 }
00678 return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_CLEAR_TUNNEL] * (GetTunnelBridgeLength(tile, endtile) + 2));
00679 }
00680
00681
00682 static CommandCost DoClearBridge(TileIndex tile, DoCommandFlag flags)
00683 {
00684 DiagDirection direction;
00685 TileIndexDiff delta;
00686 TileIndex endtile;
00687 Town *t = NULL;
00688
00689 if (!CheckAllowRemoveTunnelBridge(tile)) return CMD_ERROR;
00690
00691 endtile = GetOtherBridgeEnd(tile);
00692
00693 if (HasVehicleOnTunnelBridge(tile, endtile)) return CMD_ERROR;
00694
00695 direction = GetTunnelBridgeDirection(tile);
00696 delta = TileOffsByDiagDir(direction);
00697
00698 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00699 t = ClosestTownFromTile(tile, UINT_MAX);
00700
00701
00702
00703 if (!CheckforTownRating(flags, t, TUNNELBRIDGE_REMOVE)) {
00704 SetDParam(0, t->index);
00705 return_cmd_error(STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS);
00706 }
00707 }
00708
00709
00710
00711 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00712 ChangeTownRating(t, RATING_TUNNEL_BRIDGE_DOWN_STEP, RATING_TUNNEL_BRIDGE_MINIMUM, flags);
00713 }
00714
00715 if (flags & DC_EXEC) {
00716
00717 bool rail = GetTunnelBridgeTransportType(tile) == TRANSPORT_RAIL;
00718 Owner owner = GetTileOwner(tile);
00719 uint height = GetBridgeHeight(tile);
00720 Train *v = NULL;
00721
00722 if (rail && HasTunnelBridgeReservation(tile)) {
00723 v = GetTrainForReservation(tile, DiagDirToDiagTrack(direction));
00724 if (v != NULL) FreeTrainTrackReservation(v);
00725 }
00726
00727 DoClearSquare(tile);
00728 DoClearSquare(endtile);
00729 for (TileIndex c = tile + delta; c != endtile; c += delta) {
00730
00731 if (IsNormalRoadTile(c) && GetRoadside(c) == ROADSIDE_TREES) {
00732 uint minz = GetTileMaxZ(c) + 3 * TILE_HEIGHT;
00733 if (height < minz) SetRoadside(c, ROADSIDE_PAVED);
00734 }
00735 ClearBridgeMiddle(c);
00736 MarkTileDirtyByTile(c);
00737 }
00738
00739 if (rail) {
00740
00741 AddSideToSignalBuffer(tile, ReverseDiagDir(direction), owner);
00742 AddSideToSignalBuffer(endtile, direction, owner);
00743
00744 Track track = DiagDirToDiagTrack(direction);
00745 YapfNotifyTrackLayoutChange(tile, track);
00746 YapfNotifyTrackLayoutChange(endtile, track);
00747
00748 if (v != NULL) TryPathReserve(v, true);
00749 }
00750 }
00751
00752 return CommandCost(EXPENSES_CONSTRUCTION, (GetTunnelBridgeLength(tile, endtile) + 2) * _price[PR_CLEAR_BRIDGE]);
00753 }
00754
00755 static CommandCost ClearTile_TunnelBridge(TileIndex tile, DoCommandFlag flags)
00756 {
00757 if (IsTunnel(tile)) {
00758 if (flags & DC_AUTO) return_cmd_error(STR_ERROR_MUST_DEMOLISH_TUNNEL_FIRST);
00759 return DoClearTunnel(tile, flags);
00760 } else {
00761 if (flags & DC_AUTO) return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00762 return DoClearBridge(tile, flags);
00763 }
00764
00765 return CMD_ERROR;
00766 }
00767
00779 static void DrawBridgePillars(const PalSpriteID *psid, const TileInfo *ti, Axis axis, bool drawfarpillar, int x, int y, int z_bridge)
00780 {
00781
00782 if (IsInvisibilitySet(TO_BRIDGES)) return;
00783
00784 SpriteID image = psid->sprite;
00785
00786 if (image != 0) {
00787
00788
00789
00790
00791
00792
00793
00794
00795
00796 bool side = HasBit(image, 0);
00797
00798
00799 DiagDirection dir = AxisToDiagDir(axis);
00800 if (side != (axis == AXIS_Y)) dir = ReverseDiagDir(dir);
00801
00802
00803 int front_height = ti->z;
00804 int back_height = ti->z;
00805 GetSlopeZOnEdge(ti->tileh, dir, &front_height, &back_height);
00806
00807
00808 int w = (axis == AXIS_X ? 16 : 2);
00809 int h = (axis == AXIS_X ? 2 : 16);
00810
00811 int x_back = x - (axis == AXIS_X ? 0 : 9);
00812 int y_back = y - (axis == AXIS_X ? 9 : 0);
00813
00814 for (int cur_z = z_bridge; cur_z >= front_height || cur_z >= back_height; cur_z -= TILE_HEIGHT) {
00815
00816 if (cur_z >= front_height) {
00817 AddSortableSpriteToDraw(image, psid->pal, x, y, w, h, BB_HEIGHT_UNDER_BRIDGE - 5, cur_z, IsTransparencySet(TO_BRIDGES), 0, 0, -5);
00818 }
00819
00820
00821 if (drawfarpillar && cur_z >= back_height && cur_z < z_bridge - TILE_HEIGHT) {
00822 AddSortableSpriteToDraw(image, psid->pal, x_back, y_back, w, h, BB_HEIGHT_UNDER_BRIDGE - 5, cur_z, IsTransparencySet(TO_BRIDGES), 0, 0, -5);
00823 }
00824 }
00825 }
00826 }
00827
00837 static void DrawBridgeTramBits(int x, int y, byte z, int offset, bool overlay, bool head)
00838 {
00839 static const SpriteID tram_offsets[2][6] = { { 107, 108, 109, 110, 111, 112 }, { 4, 5, 15, 16, 17, 18 } };
00840 static const SpriteID back_offsets[6] = { 95, 96, 99, 102, 100, 101 };
00841 static const SpriteID front_offsets[6] = { 97, 98, 103, 106, 104, 105 };
00842
00843 static const uint size_x[6] = { 1, 16, 16, 1, 16, 1 };
00844 static const uint size_y[6] = { 16, 1, 1, 16, 1, 16 };
00845 static const uint front_bb_offset_x[6] = { 15, 0, 0, 15, 0, 15 };
00846 static const uint front_bb_offset_y[6] = { 0, 15, 15, 0, 15, 0 };
00847
00848
00849
00850 if (head || !IsInvisibilitySet(TO_BRIDGES)) {
00851 AddSortableSpriteToDraw(SPR_TRAMWAY_BASE + tram_offsets[overlay][offset], PAL_NONE,
00852 x, y, size_x[offset], size_y[offset], 0x28, z,
00853 !head && IsTransparencySet(TO_BRIDGES));
00854 }
00855
00856
00857 if (!IsInvisibilitySet(TO_CATENARY)) {
00858 AddSortableSpriteToDraw(SPR_TRAMWAY_BASE + back_offsets[offset], PAL_NONE,
00859 x, y, size_x[offset], size_y[offset], 0x28, z,
00860 IsTransparencySet(TO_CATENARY));
00861 }
00862
00863
00864 EndSpriteCombine();
00865 StartSpriteCombine();
00866
00867
00868 if (!IsInvisibilitySet(TO_CATENARY)) {
00869 AddSortableSpriteToDraw(SPR_TRAMWAY_BASE + front_offsets[offset], PAL_NONE,
00870 x, y, size_x[offset] + front_bb_offset_x[offset], size_y[offset] + front_bb_offset_y[offset], 0x28, z,
00871 IsTransparencySet(TO_CATENARY), front_bb_offset_x[offset], front_bb_offset_y[offset]);
00872 }
00873 }
00874
00888 static void DrawTile_TunnelBridge(TileInfo *ti)
00889 {
00890 SpriteID image;
00891 TransportType transport_type = GetTunnelBridgeTransportType(ti->tile);
00892 DiagDirection tunnelbridge_direction = GetTunnelBridgeDirection(ti->tile);
00893
00894 if (IsTunnel(ti->tile)) {
00895
00896
00897
00898
00899
00900
00901
00902
00903
00904 static const int _tunnel_BB[4][12] = {
00905
00906
00907 { 1, 0, -15, -14, 0, 15, 16, 1, 0, 1, 16, 15 },
00908 { 0, 1, -14, -15, 15, 0, 1, 16, 1, 0, 15, 16 },
00909 { 1, 0, -15, -14, 0, 15, 16, 1, 0, 1, 16, 15 },
00910 { 0, 1, -14, -15, 15, 0, 1, 16, 1, 0, 15, 16 },
00911 };
00912 const int *BB_data = _tunnel_BB[tunnelbridge_direction];
00913
00914 bool catenary = false;
00915
00916 if (transport_type == TRANSPORT_RAIL) {
00917 image = GetRailTypeInfo(GetRailType(ti->tile))->base_sprites.tunnel;
00918 } else {
00919 image = SPR_TUNNEL_ENTRY_REAR_ROAD;
00920 }
00921
00922 if (HasTunnelBridgeSnowOrDesert(ti->tile)) image += 32;
00923
00924 image += tunnelbridge_direction * 2;
00925 DrawGroundSprite(image, PAL_NONE);
00926
00927
00928 if (_game_mode != GM_MENU && _settings_client.gui.show_track_reservation && (transport_type == TRANSPORT_RAIL && HasTunnelBridgeReservation(ti->tile))) {
00929 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(ti->tile));
00930 DrawGroundSprite(DiagDirToAxis(tunnelbridge_direction) == AXIS_X ? rti->base_sprites.single_x : rti->base_sprites.single_y, PALETTE_CRASH);
00931 }
00932
00933 if (transport_type == TRANSPORT_ROAD) {
00934 RoadTypes rts = GetRoadTypes(ti->tile);
00935
00936 if (HasBit(rts, ROADTYPE_TRAM)) {
00937 static const SpriteID tunnel_sprites[2][4] = { { 28, 78, 79, 27 }, { 5, 76, 77, 4 } };
00938
00939 DrawGroundSprite(SPR_TRAMWAY_BASE + tunnel_sprites[rts - ROADTYPES_TRAM][tunnelbridge_direction], PAL_NONE);
00940
00941
00942 if (!IsInvisibilitySet(TO_CATENARY)) {
00943 catenary = true;
00944 StartSpriteCombine();
00945 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);
00946 }
00947 }
00948 } else {
00949 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(ti->tile));
00950 if (rti->UsesOverlay()) {
00951 SpriteID surface = GetCustomRailSprite(rti, ti->tile, RTSG_TUNNEL);
00952 if (surface != 0) DrawGroundSprite(surface + tunnelbridge_direction, PAL_NONE);
00953 }
00954
00955 if (HasCatenaryDrawn(GetRailType(ti->tile))) {
00956
00957 DrawCatenary(ti);
00958
00959 catenary = true;
00960 StartSpriteCombine();
00961
00962 DrawCatenaryOnTunnel(ti);
00963 }
00964 }
00965
00966 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);
00967
00968 if (catenary) EndSpriteCombine();
00969
00970
00971 AddSortableSpriteToDraw(SPR_EMPTY_BOUNDING_BOX, PAL_NONE, ti->x, ti->y, BB_data[6], BB_data[7], TILE_HEIGHT, ti->z);
00972 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);
00973
00974 DrawBridgeMiddle(ti);
00975 } else {
00976 const PalSpriteID *psid;
00977 int base_offset;
00978 bool ice = HasTunnelBridgeSnowOrDesert(ti->tile);
00979
00980 if (transport_type == TRANSPORT_RAIL) {
00981 base_offset = GetRailTypeInfo(GetRailType(ti->tile))->bridge_offset;
00982 assert(base_offset != 8);
00983 } else {
00984 base_offset = 8;
00985 }
00986
00987
00988 assert( (base_offset & 0x07) == 0x00);
00989
00990 DrawFoundation(ti, GetBridgeFoundation(ti->tileh, DiagDirToAxis(tunnelbridge_direction)));
00991
00992
00993 base_offset += (6 - tunnelbridge_direction) % 4;
00994
00995 if (ti->tileh == SLOPE_FLAT) base_offset += 4;
00996
00997
00998 if (transport_type != TRANSPORT_WATER) {
00999 psid = &GetBridgeSpriteTable(GetBridgeType(ti->tile), BRIDGE_PIECE_HEAD)[base_offset];
01000 } else {
01001 psid = _aqueduct_sprites + base_offset;
01002 }
01003
01004 if (!ice) {
01005 DrawClearLandTile(ti, 3);
01006 } else {
01007 DrawGroundSprite(SPR_FLAT_SNOW_DESERT_TILE + _tileh_to_sprite[ti->tileh], PAL_NONE);
01008 }
01009
01010
01011
01012
01013 if (transport_type == TRANSPORT_ROAD || transport_type == TRANSPORT_RAIL) StartSpriteCombine();
01014
01015
01016
01017
01018
01019 AddSortableSpriteToDraw(psid->sprite, psid->pal, ti->x, ti->y, 16, 16, ti->tileh == SLOPE_FLAT ? 0 : 8, ti->z);
01020
01021 if (transport_type == TRANSPORT_ROAD) {
01022 RoadTypes rts = GetRoadTypes(ti->tile);
01023
01024 if (HasBit(rts, ROADTYPE_TRAM)) {
01025 uint offset = tunnelbridge_direction;
01026 uint z = ti->z;
01027 if (ti->tileh != SLOPE_FLAT) {
01028 offset = (offset + 1) & 1;
01029 z += TILE_HEIGHT;
01030 } else {
01031 offset += 2;
01032 }
01033
01034 DrawBridgeTramBits(ti->x, ti->y, z, offset, HasBit(rts, ROADTYPE_ROAD), true);
01035 }
01036 EndSpriteCombine();
01037 } else if (transport_type == TRANSPORT_RAIL) {
01038 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(ti->tile));
01039 if (rti->UsesOverlay()) {
01040 SpriteID surface = GetCustomRailSprite(rti, ti->tile, RTSG_BRIDGE);
01041 if (surface != 0) {
01042 if (HasBridgeFlatRamp(ti->tileh, DiagDirToAxis(tunnelbridge_direction))) {
01043 AddSortableSpriteToDraw(surface + ((DiagDirToAxis(tunnelbridge_direction) == AXIS_X) ? RTBO_X : RTBO_Y), PAL_NONE, ti->x, ti->y, 16, 16, 0, ti->z + 8);
01044 } else {
01045 AddSortableSpriteToDraw(surface + RTBO_SLOPE + tunnelbridge_direction, PAL_NONE, ti->x, ti->y, 16, 16, 8, ti->z);
01046 }
01047 }
01048
01049
01050
01051 } else if (_game_mode != GM_MENU &&_settings_client.gui.show_track_reservation && HasTunnelBridgeReservation(ti->tile)) {
01052 if (HasBridgeFlatRamp(ti->tileh, DiagDirToAxis(tunnelbridge_direction))) {
01053 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);
01054 } else {
01055 AddSortableSpriteToDraw(rti->base_sprites.single_sloped + tunnelbridge_direction, PALETTE_CRASH, ti->x, ti->y, 16, 16, 8, ti->z);
01056 }
01057 }
01058 EndSpriteCombine();
01059 if (HasCatenaryDrawn(GetRailType(ti->tile))) {
01060 DrawCatenary(ti);
01061 }
01062 }
01063
01064 DrawBridgeMiddle(ti);
01065 }
01066 }
01067
01068
01086 static BridgePieces CalcBridgePiece(uint north, uint south)
01087 {
01088 if (north == 1) {
01089 return BRIDGE_PIECE_NORTH;
01090 } else if (south == 1) {
01091 return BRIDGE_PIECE_SOUTH;
01092 } else if (north < south) {
01093 return north & 1 ? BRIDGE_PIECE_INNER_SOUTH : BRIDGE_PIECE_INNER_NORTH;
01094 } else if (north > south) {
01095 return south & 1 ? BRIDGE_PIECE_INNER_NORTH : BRIDGE_PIECE_INNER_SOUTH;
01096 } else {
01097 return north & 1 ? BRIDGE_PIECE_MIDDLE_EVEN : BRIDGE_PIECE_MIDDLE_ODD;
01098 }
01099 }
01100
01101
01102 void DrawBridgeMiddle(const TileInfo *ti)
01103 {
01104
01105
01106
01107
01108
01109
01110
01111
01112
01113
01114
01115
01116
01117
01118
01119
01120
01121 static const int BRIDGE_Z_START = 3;
01122
01123 if (!IsBridgeAbove(ti->tile)) return;
01124
01125 TileIndex rampnorth = GetNorthernBridgeEnd(ti->tile);
01126 TileIndex rampsouth = GetSouthernBridgeEnd(ti->tile);
01127 TransportType transport_type = GetTunnelBridgeTransportType(rampsouth);
01128
01129 Axis axis = GetBridgeAxis(ti->tile);
01130 BridgePieces piece = CalcBridgePiece(
01131 GetTunnelBridgeLength(ti->tile, rampnorth) + 1,
01132 GetTunnelBridgeLength(ti->tile, rampsouth) + 1
01133 );
01134
01135 const PalSpriteID *psid;
01136 bool drawfarpillar;
01137 if (transport_type != TRANSPORT_WATER) {
01138 BridgeType type = GetBridgeType(rampsouth);
01139 drawfarpillar = !HasBit(GetBridgeSpec(type)->flags, 0);
01140
01141 uint base_offset;
01142 if (transport_type == TRANSPORT_RAIL) {
01143 base_offset = GetRailTypeInfo(GetRailType(rampsouth))->bridge_offset;
01144 } else {
01145 base_offset = 8;
01146 }
01147
01148 psid = base_offset + GetBridgeSpriteTable(type, piece);
01149 } else {
01150 drawfarpillar = true;
01151 psid = _aqueduct_sprites;
01152 }
01153
01154 if (axis != AXIS_X) psid += 4;
01155
01156 int x = ti->x;
01157 int y = ti->y;
01158 uint bridge_z = GetBridgeHeight(rampsouth);
01159 uint z = bridge_z - BRIDGE_Z_START;
01160
01161
01162 AddSortableSpriteToDraw(SPR_EMPTY_BOUNDING_BOX, PAL_NONE, x, y, 16, 16, 1, bridge_z - TILE_HEIGHT + BB_Z_SEPARATOR);
01163
01164
01165 if (transport_type == TRANSPORT_ROAD || transport_type == TRANSPORT_RAIL) StartSpriteCombine();
01166
01167
01168 if (!IsInvisibilitySet(TO_BRIDGES)) {
01169 if (axis == AXIS_X) {
01170 AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 16, 1, 0x28, z, IsTransparencySet(TO_BRIDGES), 0, 0, BRIDGE_Z_START);
01171 } else {
01172 AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 1, 16, 0x28, z, IsTransparencySet(TO_BRIDGES), 0, 0, BRIDGE_Z_START);
01173 }
01174 }
01175
01176 psid++;
01177
01178 if (transport_type == TRANSPORT_ROAD) {
01179 RoadTypes rts = GetRoadTypes(rampsouth);
01180
01181 if (HasBit(rts, ROADTYPE_TRAM)) {
01182
01183 DrawBridgeTramBits(x, y, bridge_z, axis ^ 1, HasBit(rts, ROADTYPE_ROAD), false);
01184 } else {
01185 EndSpriteCombine();
01186 StartSpriteCombine();
01187 }
01188 } else if (transport_type == TRANSPORT_RAIL) {
01189 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(rampsouth));
01190 if (rti->UsesOverlay()) {
01191 SpriteID surface = GetCustomRailSprite(rti, ti->tile, RTSG_BRIDGE);
01192 if (surface != 0) {
01193 AddSortableSpriteToDraw(surface + axis, PAL_NONE, x, y, 16, 16, 0, bridge_z, IsTransparencySet(TO_BRIDGES));
01194 }
01195 }
01196 EndSpriteCombine();
01197
01198 if (HasCatenaryDrawn(GetRailType(rampsouth))) {
01199 DrawCatenaryOnBridge(ti);
01200 }
01201 }
01202
01203
01204 if (!IsInvisibilitySet(TO_BRIDGES)) {
01205 if (axis == AXIS_X) {
01206 y += 12;
01207 if (psid->sprite & SPRITE_MASK) AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 16, 4, 0x28, z, IsTransparencySet(TO_BRIDGES), 0, 3, BRIDGE_Z_START);
01208 } else {
01209 x += 12;
01210 if (psid->sprite & SPRITE_MASK) AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 4, 16, 0x28, z, IsTransparencySet(TO_BRIDGES), 3, 0, BRIDGE_Z_START);
01211 }
01212 }
01213
01214
01215 if (transport_type == TRANSPORT_ROAD) EndSpriteCombine();
01216
01217
01218 if (IsInvisibilitySet(TO_BRIDGES)) return;
01219
01220 psid++;
01221 if (ti->z + 5 == z) {
01222
01223 if (psid->sprite != 0) {
01224 SpriteID image = psid->sprite;
01225 SpriteID pal = psid->pal;
01226 if (IsTransparencySet(TO_BRIDGES)) {
01227 SetBit(image, PALETTE_MODIFIER_TRANSPARENT);
01228 pal = PALETTE_TO_TRANSPARENT;
01229 }
01230
01231 DrawGroundSpriteAt(image, pal, x - ti->x, y - ti->y, z - ti->z);
01232 }
01233 } else if (_settings_client.gui.bridge_pillars) {
01234
01235 DrawBridgePillars(psid, ti, axis, drawfarpillar, x, y, z);
01236 }
01237 }
01238
01239
01240 static uint GetSlopeZ_TunnelBridge(TileIndex tile, uint x, uint y)
01241 {
01242 uint z;
01243 Slope tileh = GetTileSlope(tile, &z);
01244
01245 x &= 0xF;
01246 y &= 0xF;
01247
01248 if (IsTunnel(tile)) {
01249 uint pos = (DiagDirToAxis(GetTunnelBridgeDirection(tile)) == AXIS_X ? y : x);
01250
01251
01252 if (5 <= pos && pos <= 10) return z;
01253 } else {
01254 DiagDirection dir = GetTunnelBridgeDirection(tile);
01255 uint pos = (DiagDirToAxis(dir) == AXIS_X ? y : x);
01256
01257 z += ApplyFoundationToSlope(GetBridgeFoundation(tileh, DiagDirToAxis(dir)), &tileh);
01258
01259
01260 if (5 <= pos && pos <= 10) {
01261 uint delta;
01262
01263 if (tileh != SLOPE_FLAT) return z + TILE_HEIGHT;
01264
01265 switch (dir) {
01266 default: NOT_REACHED();
01267 case DIAGDIR_NE: delta = (TILE_SIZE - 1 - x) / 2; break;
01268 case DIAGDIR_SE: delta = y / 2; break;
01269 case DIAGDIR_SW: delta = x / 2; break;
01270 case DIAGDIR_NW: delta = (TILE_SIZE - 1 - y) / 2; break;
01271 }
01272 return z + 1 + delta;
01273 }
01274 }
01275
01276 return z + GetPartialZ(x, y, tileh);
01277 }
01278
01279 static Foundation GetFoundation_TunnelBridge(TileIndex tile, Slope tileh)
01280 {
01281 return IsTunnel(tile) ? FOUNDATION_NONE : GetBridgeFoundation(tileh, DiagDirToAxis(GetTunnelBridgeDirection(tile)));
01282 }
01283
01284 static void GetTileDesc_TunnelBridge(TileIndex tile, TileDesc *td)
01285 {
01286 TransportType tt = GetTunnelBridgeTransportType(tile);
01287
01288 if (IsTunnel(tile)) {
01289 td->str = (tt == TRANSPORT_RAIL) ? STR_LAI_TUNNEL_DESCRIPTION_RAILROAD : STR_LAI_TUNNEL_DESCRIPTION_ROAD;
01290 } else {
01291 td->str = (tt == TRANSPORT_WATER) ? STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT : GetBridgeSpec(GetBridgeType(tile))->transport_name[tt];
01292 }
01293 td->owner[0] = GetTileOwner(tile);
01294
01295 Owner road_owner = INVALID_OWNER;
01296 Owner tram_owner = INVALID_OWNER;
01297 RoadTypes rts = GetRoadTypes(tile);
01298 if (HasBit(rts, ROADTYPE_ROAD)) road_owner = GetRoadOwner(tile, ROADTYPE_ROAD);
01299 if (HasBit(rts, ROADTYPE_TRAM)) tram_owner = GetRoadOwner(tile, ROADTYPE_TRAM);
01300
01301
01302 if ((tram_owner != INVALID_OWNER && tram_owner != td->owner[0]) ||
01303 (road_owner != INVALID_OWNER && road_owner != td->owner[0])) {
01304 uint i = 1;
01305 if (road_owner != INVALID_OWNER) {
01306 td->owner_type[i] = STR_LAND_AREA_INFORMATION_ROAD_OWNER;
01307 td->owner[i] = road_owner;
01308 i++;
01309 }
01310 if (tram_owner != INVALID_OWNER) {
01311 td->owner_type[i] = STR_LAND_AREA_INFORMATION_TRAM_OWNER;
01312 td->owner[i] = tram_owner;
01313 }
01314 }
01315 }
01316
01317
01318 static void TileLoop_TunnelBridge(TileIndex tile)
01319 {
01320 bool snow_or_desert = HasTunnelBridgeSnowOrDesert(tile);
01321 switch (_settings_game.game_creation.landscape) {
01322 case LT_ARCTIC:
01323 if (snow_or_desert != (GetTileZ(tile) > GetSnowLine())) {
01324 SetTunnelBridgeSnowOrDesert(tile, !snow_or_desert);
01325 MarkTileDirtyByTile(tile);
01326 }
01327 break;
01328
01329 case LT_TROPIC:
01330 if (GetTropicZone(tile) == TROPICZONE_DESERT && !snow_or_desert) {
01331 SetTunnelBridgeSnowOrDesert(tile, true);
01332 MarkTileDirtyByTile(tile);
01333 }
01334 break;
01335
01336 default:
01337 break;
01338 }
01339 }
01340
01341 static TrackStatus GetTileTrackStatus_TunnelBridge(TileIndex tile, TransportType mode, uint sub_mode, DiagDirection side)
01342 {
01343 TransportType transport_type = GetTunnelBridgeTransportType(tile);
01344 if (transport_type != mode || (transport_type == TRANSPORT_ROAD && (GetRoadTypes(tile) & sub_mode) == 0)) return 0;
01345
01346 DiagDirection dir = GetTunnelBridgeDirection(tile);
01347 if (side != INVALID_DIAGDIR && side != ReverseDiagDir(dir)) return 0;
01348 return CombineTrackStatus(TrackBitsToTrackdirBits(DiagDirToDiagTrackBits(dir)), TRACKDIR_BIT_NONE);
01349 }
01350
01351 static void ChangeTileOwner_TunnelBridge(TileIndex tile, Owner old_owner, Owner new_owner)
01352 {
01353 for (RoadType rt = ROADTYPE_ROAD; rt < ROADTYPE_END; rt++) {
01354
01355 if (GetRoadOwner(tile, rt) == old_owner) {
01356 SetRoadOwner(tile, rt, new_owner == INVALID_OWNER ? OWNER_NONE : new_owner);
01357 }
01358 }
01359
01360 if (!IsTileOwner(tile, old_owner)) return;
01361
01362 if (new_owner != INVALID_OWNER) {
01363 SetTileOwner(tile, new_owner);
01364 } else {
01365 if (DoCommand(tile, 0, 0, DC_EXEC | DC_BANKRUPT, CMD_LANDSCAPE_CLEAR).Failed()) {
01366
01367
01368
01369
01370 assert(GetTunnelBridgeTransportType(tile) != TRANSPORT_RAIL);
01371 SetTileOwner(tile, OWNER_NONE);
01372 }
01373 }
01374 }
01375
01376
01377 static const byte _tunnel_fractcoord_1[4] = {0x8E, 0x18, 0x81, 0xE8};
01378 static const byte _tunnel_fractcoord_2[4] = {0x81, 0x98, 0x87, 0x38};
01379 static const byte _tunnel_fractcoord_3[4] = {0x82, 0x88, 0x86, 0x48};
01380 static const byte _exit_tunnel_track[4] = {1, 2, 1, 2};
01381
01383 static const Trackdir _road_exit_tunnel_state[DIAGDIR_END] = {
01384 TRACKDIR_X_SW, TRACKDIR_Y_NW, TRACKDIR_X_NE, TRACKDIR_Y_SE
01385 };
01386 static const byte _road_exit_tunnel_frame[4] = {2, 7, 9, 4};
01387
01388 static const byte _tunnel_fractcoord_4[4] = {0x52, 0x85, 0x98, 0x29};
01389 static const byte _tunnel_fractcoord_5[4] = {0x92, 0x89, 0x58, 0x25};
01390 static const byte _tunnel_fractcoord_6[4] = {0x92, 0x89, 0x56, 0x45};
01391 static const byte _tunnel_fractcoord_7[4] = {0x52, 0x85, 0x96, 0x49};
01392
01393 static VehicleEnterTileStatus VehicleEnter_TunnelBridge(Vehicle *v, TileIndex tile, int x, int y)
01394 {
01395 int z = GetSlopeZ(x, y) - v->z_pos;
01396
01397 if (abs(z) > 2) return VETSB_CANNOT_ENTER;
01398 const DiagDirection dir = GetTunnelBridgeDirection(tile);
01399
01400 if (IsTunnel(tile)) {
01401 byte fc;
01402 DiagDirection vdir;
01403
01404 if (v->type == VEH_TRAIN) {
01405 Train *t = Train::From(v);
01406 fc = (x & 0xF) + (y << 4);
01407
01408 vdir = DirToDiagDir(t->direction);
01409
01410 if (t->track != TRACK_BIT_WORMHOLE && dir == vdir) {
01411 if (t->IsFrontEngine() && fc == _tunnel_fractcoord_1[dir]) {
01412 if (!PlayVehicleSound(t, VSE_TUNNEL) && RailVehInfo(t->engine_type)->engclass == 0) {
01413 SndPlayVehicleFx(SND_05_TRAIN_THROUGH_TUNNEL, v);
01414 }
01415 return VETSB_CONTINUE;
01416 }
01417 if (fc == _tunnel_fractcoord_2[dir]) {
01418 t->tile = tile;
01419 t->track = TRACK_BIT_WORMHOLE;
01420 t->vehstatus |= VS_HIDDEN;
01421 return VETSB_ENTERED_WORMHOLE;
01422 }
01423 }
01424
01425 if (dir == ReverseDiagDir(vdir) && fc == _tunnel_fractcoord_3[dir] && z == 0) {
01426
01427 t->tile = tile;
01428 t->track = (TrackBits)_exit_tunnel_track[dir];
01429 assert(t->track);
01430 t->vehstatus &= ~VS_HIDDEN;
01431 return VETSB_ENTERED_WORMHOLE;
01432 }
01433 } else if (v->type == VEH_ROAD) {
01434 RoadVehicle *rv = RoadVehicle::From(v);
01435 fc = (x & 0xF) + (y << 4);
01436 vdir = DirToDiagDir(v->direction);
01437
01438
01439 if (rv->state != RVSB_WORMHOLE && dir == vdir) {
01440 if (fc == _tunnel_fractcoord_4[dir] ||
01441 fc == _tunnel_fractcoord_5[dir]) {
01442 rv->tile = tile;
01443 rv->state = RVSB_WORMHOLE;
01444 rv->vehstatus |= VS_HIDDEN;
01445 return VETSB_ENTERED_WORMHOLE;
01446 } else {
01447 return VETSB_CONTINUE;
01448 }
01449 }
01450
01451 if (dir == ReverseDiagDir(vdir) && (
01452
01453 fc == _tunnel_fractcoord_6[dir] ||
01454 fc == _tunnel_fractcoord_7[dir]
01455 ) &&
01456 z == 0) {
01457 rv->tile = tile;
01458 rv->state = _road_exit_tunnel_state[dir];
01459 rv->frame = _road_exit_tunnel_frame[dir];
01460 rv->vehstatus &= ~VS_HIDDEN;
01461 return VETSB_ENTERED_WORMHOLE;
01462 }
01463 }
01464 } else {
01465
01466 if (v->IsPrimaryVehicle() && v->type != VEH_SHIP) {
01467
01468 uint16 spd = GetBridgeSpec(GetBridgeType(tile))->speed;
01469
01470 if (v->type == VEH_ROAD) spd *= 2;
01471 if (v->cur_speed > spd) v->cur_speed = spd;
01472 }
01473
01474 if (DirToDiagDir(v->direction) == dir) {
01475 switch (dir) {
01476 default: NOT_REACHED();
01477 case DIAGDIR_NE: if ((x & 0xF) != 0) return VETSB_CONTINUE; break;
01478 case DIAGDIR_SE: if ((y & 0xF) != TILE_SIZE - 1) return VETSB_CONTINUE; break;
01479 case DIAGDIR_SW: if ((x & 0xF) != TILE_SIZE - 1) return VETSB_CONTINUE; break;
01480 case DIAGDIR_NW: if ((y & 0xF) != 0) return VETSB_CONTINUE; break;
01481 }
01482 switch (v->type) {
01483 case VEH_TRAIN: {
01484 Train *t = Train::From(v);
01485 t->track = TRACK_BIT_WORMHOLE;
01486 ClrBit(t->flags, VRF_GOINGUP);
01487 ClrBit(t->flags, VRF_GOINGDOWN);
01488 } break;
01489
01490 case VEH_ROAD:
01491 RoadVehicle::From(v)->state = RVSB_WORMHOLE;
01492 break;
01493
01494 case VEH_SHIP:
01495 Ship::From(v)->state = TRACK_BIT_WORMHOLE;
01496 break;
01497
01498 default: NOT_REACHED();
01499 }
01500 return VETSB_ENTERED_WORMHOLE;
01501 } else if (DirToDiagDir(v->direction) == ReverseDiagDir(dir)) {
01502 v->tile = tile;
01503 switch (v->type) {
01504 case VEH_TRAIN: {
01505 Train *t = Train::From(v);
01506 if (t->track == TRACK_BIT_WORMHOLE) {
01507 t->track = (DiagDirToAxis(dir) == AXIS_X ? TRACK_BIT_X : TRACK_BIT_Y);
01508 return VETSB_ENTERED_WORMHOLE;
01509 }
01510 } break;
01511
01512 case VEH_ROAD: {
01513 RoadVehicle *rv = RoadVehicle::From(v);
01514 if (rv->state == RVSB_WORMHOLE) {
01515 rv->state = _road_exit_tunnel_state[dir];
01516 rv->frame = 0;
01517 return VETSB_ENTERED_WORMHOLE;
01518 }
01519 } break;
01520
01521 case VEH_SHIP: {
01522 Ship *ship = Ship::From(v);
01523 if (ship->state == TRACK_BIT_WORMHOLE) {
01524 ship->state = (DiagDirToAxis(dir) == AXIS_X ? TRACK_BIT_X : TRACK_BIT_Y);
01525 return VETSB_ENTERED_WORMHOLE;
01526 }
01527 } break;
01528
01529 default: NOT_REACHED();
01530 }
01531 }
01532 }
01533 return VETSB_CONTINUE;
01534 }
01535
01536 static CommandCost TerraformTile_TunnelBridge(TileIndex tile, DoCommandFlag flags, uint z_new, Slope tileh_new)
01537 {
01538 if (_settings_game.construction.build_on_slopes && AutoslopeEnabled() && IsBridge(tile) && GetTunnelBridgeTransportType(tile) != TRANSPORT_WATER) {
01539 DiagDirection direction = GetTunnelBridgeDirection(tile);
01540 Axis axis = DiagDirToAxis(direction);
01541 CommandCost res;
01542 uint z_old;
01543 Slope tileh_old = GetTileSlope(tile, &z_old);
01544
01545
01546 if ((direction == DIAGDIR_NW) || (direction == DIAGDIR_NE)) {
01547 CheckBridgeSlopeSouth(axis, &tileh_old, &z_old);
01548 res = CheckBridgeSlopeSouth(axis, &tileh_new, &z_new);
01549 } else {
01550 CheckBridgeSlopeNorth(axis, &tileh_old, &z_old);
01551 res = CheckBridgeSlopeNorth(axis, &tileh_new, &z_new);
01552 }
01553
01554
01555 if (res.Succeeded() && (z_old == z_new) && (tileh_old == tileh_new)) return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
01556 }
01557
01558 return DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
01559 }
01560
01561 extern const TileTypeProcs _tile_type_tunnelbridge_procs = {
01562 DrawTile_TunnelBridge,
01563 GetSlopeZ_TunnelBridge,
01564 ClearTile_TunnelBridge,
01565 NULL,
01566 GetTileDesc_TunnelBridge,
01567 GetTileTrackStatus_TunnelBridge,
01568 NULL,
01569 NULL,
01570 TileLoop_TunnelBridge,
01571 ChangeTileOwner_TunnelBridge,
01572 NULL,
01573 VehicleEnter_TunnelBridge,
01574 GetFoundation_TunnelBridge,
01575 TerraformTile_TunnelBridge,
01576 };