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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
00044 #include "table/sprites.h"
00045 #include "table/strings.h"
00046 #include "table/bridge_land.h"
00047
00048 BridgeSpec _bridge[MAX_BRIDGES];
00049 TileIndex _build_tunnel_endtile;
00050
00052 void ResetBridges()
00053 {
00054
00055 for (BridgeType i = 0; i < MAX_BRIDGES; i++) {
00056 if (_bridge[i].sprite_table != NULL) {
00057 for (BridgePieces j = BRIDGE_PIECE_NORTH; j < BRIDGE_PIECE_INVALID; j++) free(_bridge[i].sprite_table[j]);
00058 free(_bridge[i].sprite_table);
00059 }
00060 }
00061
00062
00063 memset(&_bridge, 0, sizeof(_bridge));
00064
00065 memcpy(&_bridge, &_orig_bridge, sizeof(_orig_bridge));
00066 }
00067
00071 int CalcBridgeLenCostFactor(int x)
00072 {
00073 int n;
00074 int r;
00075
00076 if (x < 2) return x;
00077 x -= 2;
00078 for (n = 0, r = 2;; n++) {
00079 if (x <= n) return r + x * n;
00080 r += n * n;
00081 x -= n;
00082 }
00083 }
00084
00085 Foundation GetBridgeFoundation(Slope tileh, Axis axis)
00086 {
00087 if ((tileh == SLOPE_FLAT) ||
00088 (((tileh == SLOPE_NE) || (tileh == SLOPE_SW)) && (axis == AXIS_X)) ||
00089 (((tileh == SLOPE_NW) || (tileh == SLOPE_SE)) && (axis == AXIS_Y))) return FOUNDATION_NONE;
00090
00091 return (HasSlopeHighestCorner(tileh) ? InclinedFoundation(axis) : FlatteningFoundation(tileh));
00092 }
00093
00101 bool HasBridgeFlatRamp(Slope tileh, Axis axis)
00102 {
00103 ApplyFoundationToSlope(GetBridgeFoundation(tileh, axis), &tileh);
00104
00105 return (tileh != SLOPE_FLAT);
00106 }
00107
00108 static inline const PalSpriteID *GetBridgeSpriteTable(int index, BridgePieces table)
00109 {
00110 const BridgeSpec *bridge = GetBridgeSpec(index);
00111 assert(table < BRIDGE_PIECE_INVALID);
00112 if (bridge->sprite_table == NULL || bridge->sprite_table[table] == NULL) {
00113 return _bridge_sprite_table[index][table];
00114 } else {
00115 return bridge->sprite_table[table];
00116 }
00117 }
00118
00119
00128 static CommandCost CheckBridgeSlopeNorth(Axis axis, Slope *tileh, uint *z)
00129 {
00130 Foundation f = GetBridgeFoundation(*tileh, axis);
00131 *z += ApplyFoundationToSlope(f, tileh);
00132
00133 Slope valid_inclined = (axis == AXIS_X ? SLOPE_NE : SLOPE_NW);
00134 if ((*tileh != SLOPE_FLAT) && (*tileh != valid_inclined)) return CMD_ERROR;
00135
00136 if (f == FOUNDATION_NONE) return CommandCost();
00137
00138 return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
00139 }
00140
00149 static CommandCost CheckBridgeSlopeSouth(Axis axis, Slope *tileh, uint *z)
00150 {
00151 Foundation f = GetBridgeFoundation(*tileh, axis);
00152 *z += ApplyFoundationToSlope(f, tileh);
00153
00154 Slope valid_inclined = (axis == AXIS_X ? SLOPE_SW : SLOPE_SE);
00155 if ((*tileh != SLOPE_FLAT) && (*tileh != valid_inclined)) return CMD_ERROR;
00156
00157 if (f == FOUNDATION_NONE) return CommandCost();
00158
00159 return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
00160 }
00161
00162 bool CheckBridge_Stuff(BridgeType bridge_type, uint bridge_len, DoCommandFlag flags)
00163 {
00164 if (flags & DC_QUERY_COST) {
00165 return bridge_len <= (_settings_game.construction.longbridges ? 100U : 16U);
00166 }
00167
00168 if (bridge_type >= MAX_BRIDGES) return false;
00169
00170 const BridgeSpec *b = GetBridgeSpec(bridge_type);
00171 if (b->avail_year > _cur_year) return false;
00172
00173 uint max = b->max_length;
00174 if (max >= 16 && _settings_game.construction.longbridges) max = 100;
00175
00176 return b->min_length <= bridge_len && bridge_len <= max;
00177 }
00178
00190 CommandCost CmdBuildBridge(TileIndex end_tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00191 {
00192 RailType railtype = INVALID_RAILTYPE;
00193 RoadTypes roadtypes = ROADTYPES_NONE;
00194 CommandCost cost(EXPENSES_CONSTRUCTION);
00195 Owner owner;
00196
00197
00198 BridgeType bridge_type = GB(p2, 0, 8);
00199
00200 if (p1 >= MapSize()) return CMD_ERROR;
00201
00202 TransportType transport_type = (TransportType)GB(p2, 15, 2);
00203
00204
00205 switch (transport_type) {
00206 case TRANSPORT_ROAD:
00207 roadtypes = (RoadTypes)GB(p2, 8, 2);
00208 if (!AreValidRoadTypes(roadtypes) || !HasRoadTypesAvail(_current_company, roadtypes)) return CMD_ERROR;
00209 break;
00210
00211 case TRANSPORT_RAIL:
00212 railtype = (RailType)GB(p2, 8, 7);
00213 if (!ValParamRailtype(railtype)) return CMD_ERROR;
00214 break;
00215
00216 case TRANSPORT_WATER:
00217 break;
00218
00219 default:
00220
00221 return CMD_ERROR;
00222 }
00223 TileIndex tile_start = p1;
00224 TileIndex tile_end = end_tile;
00225
00226 if (tile_start == tile_end) {
00227 return_cmd_error(STR_ERROR_CAN_T_START_AND_END_ON);
00228 }
00229
00230 Axis direction;
00231 if (TileX(tile_start) == TileX(tile_end)) {
00232 direction = AXIS_Y;
00233 } else if (TileY(tile_start) == TileY(tile_end)) {
00234 direction = AXIS_X;
00235 } else {
00236 return_cmd_error(STR_ERROR_START_AND_END_MUST_BE_IN);
00237 }
00238
00239 if (tile_end < tile_start) Swap(tile_start, tile_end);
00240
00241 uint bridge_len = GetTunnelBridgeLength(tile_start, tile_end);
00242 if (transport_type != TRANSPORT_WATER) {
00243
00244 if (!CheckBridge_Stuff(bridge_type, bridge_len, flags)) return_cmd_error(STR_ERROR_CAN_T_BUILD_BRIDGE_HERE);
00245 } else {
00246 if (bridge_len > (_settings_game.construction.longbridges ? 100U : 16U)) return_cmd_error(STR_ERROR_CAN_T_BUILD_BRIDGE_HERE);
00247 }
00248
00249
00250 if (IsWaterTile(tile_start) || IsWaterTile(tile_end)) {
00251 return_cmd_error(STR_ERROR_ENDS_OF_BRIDGE_MUST_BOTH);
00252 }
00253
00254 uint z_start;
00255 uint z_end;
00256 Slope tileh_start = GetTileSlope(tile_start, &z_start);
00257 Slope tileh_end = GetTileSlope(tile_end, &z_end);
00258
00259 CommandCost terraform_cost_north = CheckBridgeSlopeNorth(direction, &tileh_start, &z_start);
00260 CommandCost terraform_cost_south = CheckBridgeSlopeSouth(direction, &tileh_end, &z_end);
00261
00262 if (z_start != z_end) return_cmd_error(STR_ERROR_BRIDGEHEADS_NOT_SAME_HEIGHT);
00263
00264 if (IsBridgeTile(tile_start) && IsBridgeTile(tile_end) &&
00265 GetOtherBridgeEnd(tile_start) == tile_end &&
00266 GetTunnelBridgeTransportType(tile_start) == transport_type) {
00267
00268
00269
00270 if (transport_type == TRANSPORT_RAIL && GetRailType(tile_start) != railtype) {
00271 return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00272 }
00273
00274
00275 if (!(flags & DC_QUERY_COST) && IsTileOwner(tile_start, OWNER_TOWN) &&
00276 GetBridgeSpec(bridge_type)->speed < GetBridgeSpec(GetBridgeType(tile_start))->speed) {
00277 Town *t = ClosestTownFromTile(tile_start, UINT_MAX);
00278
00279 if (t == NULL) {
00280 return CMD_ERROR;
00281 } else {
00282 SetDParam(0, t->index);
00283 return_cmd_error(STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS);
00284 }
00285 }
00286
00287
00288 if (!(flags & DC_QUERY_COST) && bridge_type == GetBridgeType(tile_start)) {
00289 return_cmd_error(STR_ERROR_ALREADY_BUILT);
00290 }
00291
00292
00293 if (!IsTileOwner(tile_start, _current_company) && !IsTileOwner(tile_start, OWNER_TOWN)) {
00294 return_cmd_error(STR_ERROR_AREA_IS_OWNED_BY_ANOTHER);
00295 }
00296
00297 cost.AddCost((bridge_len + 1) * _price[PR_CLEAR_BRIDGE]);
00298 owner = GetTileOwner(tile_start);
00299
00300
00301 roadtypes |= GetRoadTypes(tile_start);
00302 } else {
00303
00304
00305 bool allow_on_slopes = (_settings_game.construction.build_on_slopes && transport_type != TRANSPORT_WATER);
00306
00307
00308 CommandCost ret = DoCommand(tile_start, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00309 if (ret.Failed()) return ret;
00310 cost = ret;
00311
00312 if (terraform_cost_north.Failed() || (terraform_cost_north.GetCost() != 0 && !allow_on_slopes))
00313 return_cmd_error(STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION);
00314 cost.AddCost(terraform_cost_north);
00315
00316
00317 ret = DoCommand(tile_end, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00318 if (ret.Failed()) return ret;
00319 cost.AddCost(ret);
00320
00321
00322 if (terraform_cost_south.Failed() || (terraform_cost_south.GetCost() != 0 && !allow_on_slopes))
00323 return_cmd_error(STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION);
00324 cost.AddCost(terraform_cost_south);
00325
00326 if (transport_type == TRANSPORT_WATER && (tileh_start == SLOPE_FLAT || tileh_end == SLOPE_FLAT)) return_cmd_error(STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION);
00327
00328 const TileIndex heads[] = {tile_start, tile_end};
00329 for (int i = 0; i < 2; i++) {
00330 if (MayHaveBridgeAbove(heads[i])) {
00331 if (IsBridgeAbove(heads[i])) {
00332 TileIndex north_head = GetNorthernBridgeEnd(heads[i]);
00333
00334 if (direction == GetBridgeAxis(heads[i])) return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00335
00336 if (z_start + TILE_HEIGHT == GetBridgeHeight(north_head)) {
00337 return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00338 }
00339 }
00340 }
00341 }
00342
00343 TileIndexDiff delta = (direction == AXIS_X ? TileDiffXY(1, 0) : TileDiffXY(0, 1));
00344 for (TileIndex tile = tile_start + delta; tile != tile_end; tile += delta) {
00345 if (GetTileMaxZ(tile) > z_start) return_cmd_error(STR_ERROR_BRIDGE_TOO_LOW_FOR_TERRAIN);
00346
00347 if (MayHaveBridgeAbove(tile) && IsBridgeAbove(tile)) {
00348
00349 return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00350 }
00351
00352 switch (GetTileType(tile)) {
00353 case MP_WATER:
00354 if (!IsWater(tile) && !IsCoast(tile)) goto not_valid_below;
00355 break;
00356
00357 case MP_RAILWAY:
00358 if (!IsPlainRail(tile)) goto not_valid_below;
00359 break;
00360
00361 case MP_ROAD:
00362 if (IsRoadDepot(tile)) goto not_valid_below;
00363 break;
00364
00365 case MP_TUNNELBRIDGE:
00366 if (IsTunnel(tile)) break;
00367 if (direction == DiagDirToAxis(GetTunnelBridgeDirection(tile))) goto not_valid_below;
00368 if (z_start < GetBridgeHeight(tile)) goto not_valid_below;
00369 break;
00370
00371 case MP_UNMOVABLE:
00372 if (!IsOwnedLand(tile)) goto not_valid_below;
00373 break;
00374
00375 case MP_CLEAR:
00376 break;
00377
00378 default:
00379 not_valid_below:;
00380
00381 ret = DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00382 if (ret.Failed()) return ret;
00383 cost.AddCost(ret);
00384 break;
00385 }
00386
00387 if (flags & DC_EXEC) {
00388
00389
00390
00391 SetBridgeMiddle(tile, direction);
00392 }
00393 }
00394
00395 owner = _current_company;
00396 }
00397
00398
00399 if (flags & DC_EXEC) {
00400 DiagDirection dir = AxisToDiagDir(direction);
00401
00402 switch (transport_type) {
00403 case TRANSPORT_RAIL:
00404 MakeRailBridgeRamp(tile_start, owner, bridge_type, dir, railtype);
00405 MakeRailBridgeRamp(tile_end, owner, bridge_type, ReverseDiagDir(dir), railtype);
00406 break;
00407
00408 case TRANSPORT_ROAD:
00409 MakeRoadBridgeRamp(tile_start, owner, bridge_type, dir, roadtypes);
00410 MakeRoadBridgeRamp(tile_end, owner, bridge_type, ReverseDiagDir(dir), roadtypes);
00411 break;
00412
00413 case TRANSPORT_WATER:
00414 MakeAqueductBridgeRamp(tile_start, owner, dir);
00415 MakeAqueductBridgeRamp(tile_end, owner, ReverseDiagDir(dir));
00416 break;
00417
00418 default:
00419 NOT_REACHED();
00420 }
00421
00422
00423 TileIndexDiff delta = (direction == AXIS_X ? TileDiffXY(1, 0) : TileDiffXY(0, 1));
00424 for (TileIndex tile = tile_start; tile <= tile_end; tile += delta) {
00425 MarkTileDirtyByTile(tile);
00426 }
00427 }
00428
00429 if ((flags & DC_EXEC) && transport_type == TRANSPORT_RAIL) {
00430 Track track = AxisToTrack(direction);
00431 AddSideToSignalBuffer(tile_start, INVALID_DIAGDIR, _current_company);
00432 YapfNotifyTrackLayoutChange(tile_start, track);
00433 }
00434
00435
00436
00437
00438
00439 Company *c = Company::GetIfValid(_current_company);
00440 if (!(flags & DC_QUERY_COST) || (c != NULL && c->is_ai)) {
00441 bridge_len += 2;
00442
00443 if (c != NULL) bridge_len = CalcBridgeLenCostFactor(bridge_len);
00444
00445 cost.AddCost((int64)bridge_len * _price[PR_BUILD_BRIDGE] * GetBridgeSpec(bridge_type)->price >> 8);
00446
00447
00448 if (transport_type == TRANSPORT_WATER) cost.AddCost((int64)bridge_len * _price[PR_CLEAR_WATER]);
00449 }
00450
00451 return cost;
00452 }
00453
00454
00463 CommandCost CmdBuildTunnel(TileIndex start_tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00464 {
00465 TransportType transport_type = (TransportType)GB(p1, 9, 1);
00466 CommandCost cost(EXPENSES_CONSTRUCTION);
00467
00468 _build_tunnel_endtile = 0;
00469 if (transport_type == TRANSPORT_RAIL) {
00470 if (!ValParamRailtype((RailType)p1)) return CMD_ERROR;
00471 } else {
00472 const RoadTypes rts = (RoadTypes)GB(p1, 0, 2);
00473 if (!AreValidRoadTypes(rts) || !HasRoadTypesAvail(_current_company, rts)) return CMD_ERROR;
00474 }
00475
00476 uint start_z;
00477 uint end_z;
00478 Slope start_tileh = GetTileSlope(start_tile, &start_z);
00479 DiagDirection direction = GetInclinedSlopeDirection(start_tileh);
00480 if (direction == INVALID_DIAGDIR) return_cmd_error(STR_ERROR_SITE_UNSUITABLE_FOR_TUNNEL);
00481
00482 if (IsWaterTile(start_tile)) return_cmd_error(STR_ERROR_CAN_T_BUILD_ON_WATER);
00483
00484 CommandCost ret = DoCommand(start_tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00485 if (ret.Failed()) return ret;
00486
00487
00488
00489
00490
00491
00492 TileIndexDiff delta = TileOffsByDiagDir(direction);
00493 DiagDirection tunnel_in_way_dir;
00494 if (DiagDirToAxis(direction) == AXIS_Y) {
00495 tunnel_in_way_dir = (TileX(start_tile) < (MapMaxX() / 2)) ? DIAGDIR_SW : DIAGDIR_NE;
00496 } else {
00497 tunnel_in_way_dir = (TileY(start_tile) < (MapMaxX() / 2)) ? DIAGDIR_SE : DIAGDIR_NW;
00498 }
00499
00500 TileIndex end_tile = start_tile;
00501
00502
00503 int tiles_coef = 3;
00504
00505 int tiles = 0;
00506
00507 int tiles_bump = 25;
00508
00509 Slope end_tileh;
00510 for (;;) {
00511 end_tile += delta;
00512 if (!IsValidTile(end_tile)) return_cmd_error(STR_ERROR_TUNNEL_THROUGH_MAP_BORDER);
00513 end_tileh = GetTileSlope(end_tile, &end_z);
00514
00515 if (start_z == end_z) break;
00516
00517 if (!_cheats.crossing_tunnels.value && IsTunnelInWayDir(end_tile, start_z, tunnel_in_way_dir)) {
00518 return_cmd_error(STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY);
00519 }
00520
00521 tiles++;
00522 if (tiles == tiles_bump) {
00523 tiles_coef++;
00524 tiles_bump *= 2;
00525 }
00526
00527 cost.AddCost(_price[PR_BUILD_TUNNEL]);
00528 cost.AddCost(cost.GetCost() >> tiles_coef);
00529 }
00530
00531
00532 cost.AddCost(_price[PR_BUILD_TUNNEL]);
00533 cost.AddCost(ret);
00534
00535
00536 _build_tunnel_endtile = end_tile;
00537
00538 if (IsWaterTile(end_tile)) return_cmd_error(STR_ERROR_CAN_T_BUILD_ON_WATER);
00539
00540
00541 if (end_tileh != ComplementSlope(start_tileh)) {
00542
00543
00544
00545
00546 ret = DoCommand(end_tile, 0, 0, DC_AUTO, CMD_LANDSCAPE_CLEAR);
00547 if (ret.Failed()) return_cmd_error(STR_ERROR_UNABLE_TO_EXCAVATE_LAND);
00548
00549 ret = DoCommand(end_tile, end_tileh & start_tileh, 0, flags, CMD_TERRAFORM_LAND);
00550 if (ret.Failed()) return_cmd_error(STR_ERROR_UNABLE_TO_EXCAVATE_LAND);
00551 } else {
00552 ret = DoCommand(end_tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00553 if (ret.Failed()) return ret;
00554 }
00555 cost.AddCost(_price[PR_BUILD_TUNNEL]);
00556 cost.AddCost(ret);
00557
00558 if (flags & DC_EXEC) {
00559 if (transport_type == TRANSPORT_RAIL) {
00560 MakeRailTunnel(start_tile, _current_company, direction, (RailType)GB(p1, 0, 4));
00561 MakeRailTunnel(end_tile, _current_company, ReverseDiagDir(direction), (RailType)GB(p1, 0, 4));
00562 AddSideToSignalBuffer(start_tile, INVALID_DIAGDIR, _current_company);
00563 YapfNotifyTrackLayoutChange(start_tile, DiagDirToDiagTrack(direction));
00564 } else {
00565 MakeRoadTunnel(start_tile, _current_company, direction, (RoadTypes)GB(p1, 0, 2));
00566 MakeRoadTunnel(end_tile, _current_company, ReverseDiagDir(direction), (RoadTypes)GB(p1, 0, 2));
00567 }
00568 }
00569
00570 return cost;
00571 }
00572
00573
00574 static inline bool CheckAllowRemoveTunnelBridge(TileIndex tile)
00575 {
00576
00577 if (_current_company == OWNER_WATER || _game_mode == GM_EDITOR) return true;
00578
00579 switch (GetTunnelBridgeTransportType(tile)) {
00580 case TRANSPORT_ROAD: {
00581 RoadTypes rts = GetRoadTypes(tile);
00582 Owner road_owner = _current_company;
00583 Owner tram_owner = _current_company;
00584
00585 if (HasBit(rts, ROADTYPE_ROAD)) road_owner = GetRoadOwner(tile, ROADTYPE_ROAD);
00586 if (HasBit(rts, ROADTYPE_TRAM)) tram_owner = GetRoadOwner(tile, ROADTYPE_TRAM);
00587
00588
00589 if (road_owner == OWNER_TOWN && !(_settings_game.construction.extra_dynamite || _cheats.magic_bulldozer.value)) return CheckTileOwnership(tile);
00590 if (road_owner == OWNER_NONE || road_owner == OWNER_TOWN) road_owner = _current_company;
00591 if (tram_owner == OWNER_NONE) tram_owner = _current_company;
00592
00593 return CheckOwnership(road_owner, tile) && CheckOwnership(tram_owner, tile);
00594 }
00595
00596 case TRANSPORT_RAIL:
00597 case TRANSPORT_WATER:
00598 return CheckOwnership(GetTileOwner(tile));
00599
00600 default: NOT_REACHED();
00601 }
00602 }
00603
00604 static CommandCost DoClearTunnel(TileIndex tile, DoCommandFlag flags)
00605 {
00606 Town *t = NULL;
00607 TileIndex endtile;
00608
00609 if (!CheckAllowRemoveTunnelBridge(tile)) return CMD_ERROR;
00610
00611 endtile = GetOtherTunnelEnd(tile);
00612
00613 if (HasVehicleOnTunnelBridge(tile, endtile)) return CMD_ERROR;
00614
00615 _build_tunnel_endtile = endtile;
00616
00617 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00618 t = ClosestTownFromTile(tile, UINT_MAX);
00619
00620
00621
00622 if (!CheckforTownRating(flags, t, TUNNELBRIDGE_REMOVE)) {
00623 SetDParam(0, t->index);
00624 return_cmd_error(STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS);
00625 }
00626 }
00627
00628
00629
00630 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00631 ChangeTownRating(t, RATING_TUNNEL_BRIDGE_DOWN_STEP, RATING_TUNNEL_BRIDGE_MINIMUM, flags);
00632 }
00633
00634 if (flags & DC_EXEC) {
00635 if (GetTunnelBridgeTransportType(tile) == TRANSPORT_RAIL) {
00636
00637 DiagDirection dir = GetTunnelBridgeDirection(tile);
00638 Track track = DiagDirToDiagTrack(dir);
00639 Owner owner = GetTileOwner(tile);
00640
00641 Train *v = NULL;
00642 if (HasTunnelBridgeReservation(tile)) {
00643 v = GetTrainForReservation(tile, track);
00644 if (v != NULL) FreeTrainTrackReservation(v);
00645 }
00646
00647 DoClearSquare(tile);
00648 DoClearSquare(endtile);
00649
00650
00651 AddSideToSignalBuffer(tile, ReverseDiagDir(dir), owner);
00652 AddSideToSignalBuffer(endtile, dir, owner);
00653
00654 YapfNotifyTrackLayoutChange(tile, track);
00655 YapfNotifyTrackLayoutChange(endtile, track);
00656
00657 if (v != NULL) TryPathReserve(v);
00658 } else {
00659 DoClearSquare(tile);
00660 DoClearSquare(endtile);
00661 }
00662 }
00663 return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_CLEAR_TUNNEL] * (GetTunnelBridgeLength(tile, endtile) + 2));
00664 }
00665
00666
00667 static CommandCost DoClearBridge(TileIndex tile, DoCommandFlag flags)
00668 {
00669 DiagDirection direction;
00670 TileIndexDiff delta;
00671 TileIndex endtile;
00672 Town *t = NULL;
00673
00674 if (!CheckAllowRemoveTunnelBridge(tile)) return CMD_ERROR;
00675
00676 endtile = GetOtherBridgeEnd(tile);
00677
00678 if (HasVehicleOnTunnelBridge(tile, endtile)) return CMD_ERROR;
00679
00680 direction = GetTunnelBridgeDirection(tile);
00681 delta = TileOffsByDiagDir(direction);
00682
00683 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00684 t = ClosestTownFromTile(tile, UINT_MAX);
00685
00686
00687
00688 if (!CheckforTownRating(flags, t, TUNNELBRIDGE_REMOVE)) {
00689 SetDParam(0, t->index);
00690 return_cmd_error(STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS);
00691 }
00692 }
00693
00694
00695
00696 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00697 ChangeTownRating(t, RATING_TUNNEL_BRIDGE_DOWN_STEP, RATING_TUNNEL_BRIDGE_MINIMUM, flags);
00698 }
00699
00700 if (flags & DC_EXEC) {
00701
00702 bool rail = GetTunnelBridgeTransportType(tile) == TRANSPORT_RAIL;
00703 Owner owner = GetTileOwner(tile);
00704 uint height = GetBridgeHeight(tile);
00705 Train *v = NULL;
00706
00707 if (rail && HasTunnelBridgeReservation(tile)) {
00708 v = GetTrainForReservation(tile, DiagDirToDiagTrack(direction));
00709 if (v != NULL) FreeTrainTrackReservation(v);
00710 }
00711
00712 DoClearSquare(tile);
00713 DoClearSquare(endtile);
00714 for (TileIndex c = tile + delta; c != endtile; c += delta) {
00715
00716 if (IsNormalRoadTile(c) && GetRoadside(c) == ROADSIDE_TREES) {
00717 uint minz = GetTileMaxZ(c) + 3 * TILE_HEIGHT;
00718 if (height < minz) SetRoadside(c, ROADSIDE_PAVED);
00719 }
00720 ClearBridgeMiddle(c);
00721 MarkTileDirtyByTile(c);
00722 }
00723
00724 if (rail) {
00725
00726 AddSideToSignalBuffer(tile, ReverseDiagDir(direction), owner);
00727 AddSideToSignalBuffer(endtile, direction, owner);
00728
00729 Track track = DiagDirToDiagTrack(direction);
00730 YapfNotifyTrackLayoutChange(tile, track);
00731 YapfNotifyTrackLayoutChange(endtile, track);
00732
00733 if (v != NULL) TryPathReserve(v, true);
00734 }
00735 }
00736
00737 return CommandCost(EXPENSES_CONSTRUCTION, (GetTunnelBridgeLength(tile, endtile) + 2) * _price[PR_CLEAR_BRIDGE]);
00738 }
00739
00740 static CommandCost ClearTile_TunnelBridge(TileIndex tile, DoCommandFlag flags)
00741 {
00742 if (IsTunnel(tile)) {
00743 if (flags & DC_AUTO) return_cmd_error(STR_ERROR_MUST_DEMOLISH_TUNNEL_FIRST);
00744 return DoClearTunnel(tile, flags);
00745 } else {
00746 if (flags & DC_AUTO) return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00747 return DoClearBridge(tile, flags);
00748 }
00749
00750 return CMD_ERROR;
00751 }
00752
00764 static void DrawBridgePillars(const PalSpriteID *psid, const TileInfo *ti, Axis axis, bool drawfarpillar, int x, int y, int z_bridge)
00765 {
00766
00767 if (IsInvisibilitySet(TO_BRIDGES)) return;
00768
00769 SpriteID image = psid->sprite;
00770
00771 if (image != 0) {
00772
00773
00774
00775
00776
00777
00778
00779
00780
00781 bool side = HasBit(image, 0);
00782
00783
00784 DiagDirection dir = AxisToDiagDir(axis);
00785 if (side != (axis == AXIS_Y)) dir = ReverseDiagDir(dir);
00786
00787
00788 int front_height = ti->z;
00789 int back_height = ti->z;
00790 GetSlopeZOnEdge(ti->tileh, dir, &front_height, &back_height);
00791
00792
00793 int w = (axis == AXIS_X ? 16 : 2);
00794 int h = (axis == AXIS_X ? 2 : 16);
00795
00796 int x_back = x - (axis == AXIS_X ? 0 : 9);
00797 int y_back = y - (axis == AXIS_X ? 9 : 0);
00798
00799 for (int cur_z = z_bridge; cur_z >= front_height || cur_z >= back_height; cur_z -= TILE_HEIGHT) {
00800
00801 if (cur_z >= front_height) {
00802 AddSortableSpriteToDraw(image, psid->pal, x, y, w, h, BB_HEIGHT_UNDER_BRIDGE - 5, cur_z, IsTransparencySet(TO_BRIDGES), 0, 0, -5);
00803 }
00804
00805
00806 if (drawfarpillar && cur_z >= back_height && cur_z < z_bridge - TILE_HEIGHT) {
00807 AddSortableSpriteToDraw(image, psid->pal, x_back, y_back, w, h, BB_HEIGHT_UNDER_BRIDGE - 5, cur_z, IsTransparencySet(TO_BRIDGES), 0, 0, -5);
00808 }
00809 }
00810 }
00811 }
00812
00822 static void DrawBridgeTramBits(int x, int y, byte z, int offset, bool overlay, bool head)
00823 {
00824 static const SpriteID tram_offsets[2][6] = { { 107, 108, 109, 110, 111, 112 }, { 4, 5, 15, 16, 17, 18 } };
00825 static const SpriteID back_offsets[6] = { 95, 96, 99, 102, 100, 101 };
00826 static const SpriteID front_offsets[6] = { 97, 98, 103, 106, 104, 105 };
00827
00828 static const uint size_x[6] = { 1, 16, 16, 1, 16, 1 };
00829 static const uint size_y[6] = { 16, 1, 1, 16, 1, 16 };
00830 static const uint front_bb_offset_x[6] = { 15, 0, 0, 15, 0, 15 };
00831 static const uint front_bb_offset_y[6] = { 0, 15, 15, 0, 15, 0 };
00832
00833
00834
00835 if (head || !IsInvisibilitySet(TO_BRIDGES)) {
00836 AddSortableSpriteToDraw(SPR_TRAMWAY_BASE + tram_offsets[overlay][offset], PAL_NONE,
00837 x, y, size_x[offset], size_y[offset], 0x28, z,
00838 !head && IsTransparencySet(TO_BRIDGES));
00839 }
00840
00841
00842 if (!IsInvisibilitySet(TO_CATENARY)) {
00843 AddSortableSpriteToDraw(SPR_TRAMWAY_BASE + back_offsets[offset], PAL_NONE,
00844 x, y, size_x[offset], size_y[offset], 0x28, z,
00845 IsTransparencySet(TO_CATENARY));
00846 }
00847
00848
00849 EndSpriteCombine();
00850 StartSpriteCombine();
00851
00852
00853 if (!IsInvisibilitySet(TO_CATENARY)) {
00854 AddSortableSpriteToDraw(SPR_TRAMWAY_BASE + front_offsets[offset], PAL_NONE,
00855 x, y, size_x[offset] + front_bb_offset_x[offset], size_y[offset] + front_bb_offset_y[offset], 0x28, z,
00856 IsTransparencySet(TO_CATENARY), front_bb_offset_x[offset], front_bb_offset_y[offset]);
00857 }
00858 }
00859
00873 static void DrawTile_TunnelBridge(TileInfo *ti)
00874 {
00875 SpriteID image;
00876 TransportType transport_type = GetTunnelBridgeTransportType(ti->tile);
00877 DiagDirection tunnelbridge_direction = GetTunnelBridgeDirection(ti->tile);
00878
00879 if (IsTunnel(ti->tile)) {
00880
00881
00882
00883
00884
00885
00886
00887
00888
00889 static const int _tunnel_BB[4][12] = {
00890
00891
00892 { 1, 0, -15, -14, 0, 15, 16, 1, 0, 1, 16, 15 },
00893 { 0, 1, -14, -15, 15, 0, 1, 16, 1, 0, 15, 16 },
00894 { 1, 0, -15, -14, 0, 15, 16, 1, 0, 1, 16, 15 },
00895 { 0, 1, -14, -15, 15, 0, 1, 16, 1, 0, 15, 16 },
00896 };
00897 const int *BB_data = _tunnel_BB[tunnelbridge_direction];
00898
00899 bool catenary = false;
00900
00901 if (transport_type == TRANSPORT_RAIL) {
00902 image = GetRailTypeInfo(GetRailType(ti->tile))->base_sprites.tunnel;
00903 } else {
00904 image = SPR_TUNNEL_ENTRY_REAR_ROAD;
00905 }
00906
00907 if (HasTunnelBridgeSnowOrDesert(ti->tile)) image += 32;
00908
00909 image += tunnelbridge_direction * 2;
00910 DrawGroundSprite(image, PAL_NONE);
00911
00912
00913 if (_game_mode != GM_MENU && _settings_client.gui.show_track_reservation && (transport_type == TRANSPORT_RAIL && HasTunnelBridgeReservation(ti->tile))) {
00914 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(ti->tile));
00915 DrawGroundSprite(DiagDirToAxis(tunnelbridge_direction) == AXIS_X ? rti->base_sprites.single_x : rti->base_sprites.single_y, PALETTE_CRASH);
00916 }
00917
00918 if (transport_type == TRANSPORT_ROAD) {
00919 RoadTypes rts = GetRoadTypes(ti->tile);
00920
00921 if (HasBit(rts, ROADTYPE_TRAM)) {
00922 static const SpriteID tunnel_sprites[2][4] = { { 28, 78, 79, 27 }, { 5, 76, 77, 4 } };
00923
00924 DrawGroundSprite(SPR_TRAMWAY_BASE + tunnel_sprites[rts - ROADTYPES_TRAM][tunnelbridge_direction], PAL_NONE);
00925
00926
00927 if (!IsInvisibilitySet(TO_CATENARY)) {
00928 catenary = true;
00929 StartSpriteCombine();
00930 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);
00931 }
00932 }
00933 } else if (HasCatenaryDrawn(GetRailType(ti->tile))) {
00934
00935 DrawCatenary(ti);
00936
00937 catenary = true;
00938 StartSpriteCombine();
00939
00940 DrawCatenaryOnTunnel(ti);
00941 }
00942
00943 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);
00944
00945 if (catenary) EndSpriteCombine();
00946
00947
00948 AddSortableSpriteToDraw(SPR_EMPTY_BOUNDING_BOX, PAL_NONE, ti->x, ti->y, BB_data[6], BB_data[7], TILE_HEIGHT, ti->z);
00949 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);
00950
00951 DrawBridgeMiddle(ti);
00952 } else {
00953 const PalSpriteID *psid;
00954 int base_offset;
00955 bool ice = HasTunnelBridgeSnowOrDesert(ti->tile);
00956
00957 if (transport_type == TRANSPORT_RAIL) {
00958 base_offset = GetRailTypeInfo(GetRailType(ti->tile))->bridge_offset;
00959 assert(base_offset != 8);
00960 } else {
00961 base_offset = 8;
00962 }
00963
00964
00965 assert( (base_offset & 0x07) == 0x00);
00966
00967 DrawFoundation(ti, GetBridgeFoundation(ti->tileh, DiagDirToAxis(tunnelbridge_direction)));
00968
00969
00970 base_offset += (6 - tunnelbridge_direction) % 4;
00971
00972 if (ti->tileh == SLOPE_FLAT) base_offset += 4;
00973
00974
00975 if (transport_type != TRANSPORT_WATER) {
00976 psid = &GetBridgeSpriteTable(GetBridgeType(ti->tile), BRIDGE_PIECE_HEAD)[base_offset];
00977 } else {
00978 psid = _aqueduct_sprites + base_offset;
00979 }
00980
00981 if (!ice) {
00982 DrawClearLandTile(ti, 3);
00983 } else {
00984 DrawGroundSprite(SPR_FLAT_SNOW_DESERT_TILE + _tileh_to_sprite[ti->tileh], PAL_NONE);
00985 }
00986
00987
00988
00989
00990 if (transport_type == TRANSPORT_ROAD || transport_type == TRANSPORT_RAIL) StartSpriteCombine();
00991
00992
00993
00994
00995
00996 AddSortableSpriteToDraw(psid->sprite, psid->pal, ti->x, ti->y, 16, 16, ti->tileh == SLOPE_FLAT ? 0 : 8, ti->z);
00997
00998 if (_game_mode != GM_MENU && _settings_client.gui.show_track_reservation && transport_type == TRANSPORT_RAIL && HasTunnelBridgeReservation(ti->tile)) {
00999 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(ti->tile));
01000 if (HasBridgeFlatRamp(ti->tileh, DiagDirToAxis(tunnelbridge_direction))) {
01001 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);
01002 } else {
01003 AddSortableSpriteToDraw(rti->base_sprites.single_sloped + tunnelbridge_direction, PALETTE_CRASH, ti->x, ti->y, 16, 16, 8, ti->z);
01004 }
01005 }
01006
01007 if (transport_type == TRANSPORT_ROAD) {
01008 RoadTypes rts = GetRoadTypes(ti->tile);
01009
01010 if (HasBit(rts, ROADTYPE_TRAM)) {
01011 uint offset = tunnelbridge_direction;
01012 uint z = ti->z;
01013 if (ti->tileh != SLOPE_FLAT) {
01014 offset = (offset + 1) & 1;
01015 z += TILE_HEIGHT;
01016 } else {
01017 offset += 2;
01018 }
01019
01020 DrawBridgeTramBits(ti->x, ti->y, z, offset, HasBit(rts, ROADTYPE_ROAD), true);
01021 }
01022 EndSpriteCombine();
01023 } else if (transport_type == TRANSPORT_RAIL) {
01024 EndSpriteCombine();
01025 if (HasCatenaryDrawn(GetRailType(ti->tile))) {
01026 DrawCatenary(ti);
01027 }
01028 }
01029
01030 DrawBridgeMiddle(ti);
01031 }
01032 }
01033
01034
01052 static BridgePieces CalcBridgePiece(uint north, uint south)
01053 {
01054 if (north == 1) {
01055 return BRIDGE_PIECE_NORTH;
01056 } else if (south == 1) {
01057 return BRIDGE_PIECE_SOUTH;
01058 } else if (north < south) {
01059 return north & 1 ? BRIDGE_PIECE_INNER_SOUTH : BRIDGE_PIECE_INNER_NORTH;
01060 } else if (north > south) {
01061 return south & 1 ? BRIDGE_PIECE_INNER_NORTH : BRIDGE_PIECE_INNER_SOUTH;
01062 } else {
01063 return north & 1 ? BRIDGE_PIECE_MIDDLE_EVEN : BRIDGE_PIECE_MIDDLE_ODD;
01064 }
01065 }
01066
01067
01068 void DrawBridgeMiddle(const TileInfo *ti)
01069 {
01070
01071
01072
01073
01074
01075
01076
01077
01078
01079
01080
01081
01082
01083
01084
01085
01086
01087 static const int BRIDGE_Z_START = 3;
01088
01089 if (!IsBridgeAbove(ti->tile)) return;
01090
01091 TileIndex rampnorth = GetNorthernBridgeEnd(ti->tile);
01092 TileIndex rampsouth = GetSouthernBridgeEnd(ti->tile);
01093 TransportType transport_type = GetTunnelBridgeTransportType(rampsouth);
01094
01095 Axis axis = GetBridgeAxis(ti->tile);
01096 BridgePieces piece = CalcBridgePiece(
01097 GetTunnelBridgeLength(ti->tile, rampnorth) + 1,
01098 GetTunnelBridgeLength(ti->tile, rampsouth) + 1
01099 );
01100
01101 const PalSpriteID *psid;
01102 bool drawfarpillar;
01103 if (transport_type != TRANSPORT_WATER) {
01104 BridgeType type = GetBridgeType(rampsouth);
01105 drawfarpillar = !HasBit(GetBridgeSpec(type)->flags, 0);
01106
01107 uint base_offset;
01108 if (transport_type == TRANSPORT_RAIL) {
01109 base_offset = GetRailTypeInfo(GetRailType(rampsouth))->bridge_offset;
01110 } else {
01111 base_offset = 8;
01112 }
01113
01114 psid = base_offset + GetBridgeSpriteTable(type, piece);
01115 } else {
01116 drawfarpillar = true;
01117 psid = _aqueduct_sprites;
01118 }
01119
01120 if (axis != AXIS_X) psid += 4;
01121
01122 int x = ti->x;
01123 int y = ti->y;
01124 uint bridge_z = GetBridgeHeight(rampsouth);
01125 uint z = bridge_z - BRIDGE_Z_START;
01126
01127
01128 AddSortableSpriteToDraw(SPR_EMPTY_BOUNDING_BOX, PAL_NONE, x, y, 16, 16, 1, bridge_z - TILE_HEIGHT + BB_Z_SEPARATOR);
01129
01130
01131 if (transport_type == TRANSPORT_ROAD) StartSpriteCombine();
01132
01133
01134 if (!IsInvisibilitySet(TO_BRIDGES)) {
01135 if (axis == AXIS_X) {
01136 AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 16, 1, 0x28, z, IsTransparencySet(TO_BRIDGES), 0, 0, BRIDGE_Z_START);
01137 } else {
01138 AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 1, 16, 0x28, z, IsTransparencySet(TO_BRIDGES), 0, 0, BRIDGE_Z_START);
01139 }
01140 }
01141
01142 psid++;
01143
01144 if (transport_type == TRANSPORT_ROAD) {
01145 RoadTypes rts = GetRoadTypes(rampsouth);
01146
01147 if (HasBit(rts, ROADTYPE_TRAM)) {
01148
01149 DrawBridgeTramBits(x, y, bridge_z, axis ^ 1, HasBit(rts, ROADTYPE_ROAD), false);
01150 } else {
01151 EndSpriteCombine();
01152 StartSpriteCombine();
01153 }
01154 } else if (transport_type == TRANSPORT_RAIL) {
01155 if (HasCatenaryDrawn(GetRailType(rampsouth))) {
01156 DrawCatenaryOnBridge(ti);
01157 }
01158 }
01159
01160
01161 if (!IsInvisibilitySet(TO_BRIDGES)) {
01162 if (axis == AXIS_X) {
01163 y += 12;
01164 if (psid->sprite & SPRITE_MASK) AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 16, 4, 0x28, z, IsTransparencySet(TO_BRIDGES), 0, 3, BRIDGE_Z_START);
01165 } else {
01166 x += 12;
01167 if (psid->sprite & SPRITE_MASK) AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 4, 16, 0x28, z, IsTransparencySet(TO_BRIDGES), 3, 0, BRIDGE_Z_START);
01168 }
01169 }
01170
01171
01172 if (transport_type == TRANSPORT_ROAD) EndSpriteCombine();
01173
01174
01175 if (IsInvisibilitySet(TO_BRIDGES)) return;
01176
01177 psid++;
01178 if (ti->z + 5 == z) {
01179
01180 if (psid->sprite != 0) {
01181 SpriteID image = psid->sprite;
01182 SpriteID pal = psid->pal;
01183 if (IsTransparencySet(TO_BRIDGES)) {
01184 SetBit(image, PALETTE_MODIFIER_TRANSPARENT);
01185 pal = PALETTE_TO_TRANSPARENT;
01186 }
01187
01188 DrawGroundSpriteAt(image, pal, x - ti->x, y - ti->y, z - ti->z);
01189 }
01190 } else if (_settings_client.gui.bridge_pillars) {
01191
01192 DrawBridgePillars(psid, ti, axis, drawfarpillar, x, y, z);
01193 }
01194 }
01195
01196
01197 static uint GetSlopeZ_TunnelBridge(TileIndex tile, uint x, uint y)
01198 {
01199 uint z;
01200 Slope tileh = GetTileSlope(tile, &z);
01201
01202 x &= 0xF;
01203 y &= 0xF;
01204
01205 if (IsTunnel(tile)) {
01206 uint pos = (DiagDirToAxis(GetTunnelBridgeDirection(tile)) == AXIS_X ? y : x);
01207
01208
01209 if (5 <= pos && pos <= 10) return z;
01210 } else {
01211 DiagDirection dir = GetTunnelBridgeDirection(tile);
01212 uint pos = (DiagDirToAxis(dir) == AXIS_X ? y : x);
01213
01214 z += ApplyFoundationToSlope(GetBridgeFoundation(tileh, DiagDirToAxis(dir)), &tileh);
01215
01216
01217 if (5 <= pos && pos <= 10) {
01218 uint delta;
01219
01220 if (tileh != SLOPE_FLAT) return z + TILE_HEIGHT;
01221
01222 switch (dir) {
01223 default: NOT_REACHED();
01224 case DIAGDIR_NE: delta = (TILE_SIZE - 1 - x) / 2; break;
01225 case DIAGDIR_SE: delta = y / 2; break;
01226 case DIAGDIR_SW: delta = x / 2; break;
01227 case DIAGDIR_NW: delta = (TILE_SIZE - 1 - y) / 2; break;
01228 }
01229 return z + 1 + delta;
01230 }
01231 }
01232
01233 return z + GetPartialZ(x, y, tileh);
01234 }
01235
01236 static Foundation GetFoundation_TunnelBridge(TileIndex tile, Slope tileh)
01237 {
01238 return IsTunnel(tile) ? FOUNDATION_NONE : GetBridgeFoundation(tileh, DiagDirToAxis(GetTunnelBridgeDirection(tile)));
01239 }
01240
01241 static void GetTileDesc_TunnelBridge(TileIndex tile, TileDesc *td)
01242 {
01243 TransportType tt = GetTunnelBridgeTransportType(tile);
01244
01245 if (IsTunnel(tile)) {
01246 td->str = (tt == TRANSPORT_RAIL) ? STR_LAI_TUNNEL_DESCRIPTION_RAILROAD : STR_LAI_TUNNEL_DESCRIPTION_ROAD;
01247 } else {
01248 td->str = (tt == TRANSPORT_WATER) ? STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT : GetBridgeSpec(GetBridgeType(tile))->transport_name[tt];
01249 }
01250 td->owner[0] = GetTileOwner(tile);
01251
01252 Owner road_owner = INVALID_OWNER;
01253 Owner tram_owner = INVALID_OWNER;
01254 RoadTypes rts = GetRoadTypes(tile);
01255 if (HasBit(rts, ROADTYPE_ROAD)) road_owner = GetRoadOwner(tile, ROADTYPE_ROAD);
01256 if (HasBit(rts, ROADTYPE_TRAM)) tram_owner = GetRoadOwner(tile, ROADTYPE_TRAM);
01257
01258
01259 if ((tram_owner != INVALID_OWNER && tram_owner != td->owner[0]) ||
01260 (road_owner != INVALID_OWNER && road_owner != td->owner[0])) {
01261 uint i = 1;
01262 if (road_owner != INVALID_OWNER) {
01263 td->owner_type[i] = STR_LAND_AREA_INFORMATION_ROAD_OWNER;
01264 td->owner[i] = road_owner;
01265 i++;
01266 }
01267 if (tram_owner != INVALID_OWNER) {
01268 td->owner_type[i] = STR_LAND_AREA_INFORMATION_TRAM_OWNER;
01269 td->owner[i] = tram_owner;
01270 }
01271 }
01272 }
01273
01274
01275 static void TileLoop_TunnelBridge(TileIndex tile)
01276 {
01277 bool snow_or_desert = HasTunnelBridgeSnowOrDesert(tile);
01278 switch (_settings_game.game_creation.landscape) {
01279 case LT_ARCTIC:
01280 if (snow_or_desert != (GetTileZ(tile) > GetSnowLine())) {
01281 SetTunnelBridgeSnowOrDesert(tile, !snow_or_desert);
01282 MarkTileDirtyByTile(tile);
01283 }
01284 break;
01285
01286 case LT_TROPIC:
01287 if (GetTropicZone(tile) == TROPICZONE_DESERT && !snow_or_desert) {
01288 SetTunnelBridgeSnowOrDesert(tile, true);
01289 MarkTileDirtyByTile(tile);
01290 }
01291 break;
01292
01293 default:
01294 break;
01295 }
01296 }
01297
01298 static TrackStatus GetTileTrackStatus_TunnelBridge(TileIndex tile, TransportType mode, uint sub_mode, DiagDirection side)
01299 {
01300 TransportType transport_type = GetTunnelBridgeTransportType(tile);
01301 if (transport_type != mode || (transport_type == TRANSPORT_ROAD && (GetRoadTypes(tile) & sub_mode) == 0)) return 0;
01302
01303 DiagDirection dir = GetTunnelBridgeDirection(tile);
01304 if (side != INVALID_DIAGDIR && side != ReverseDiagDir(dir)) return 0;
01305 return CombineTrackStatus(TrackBitsToTrackdirBits(DiagDirToDiagTrackBits(dir)), TRACKDIR_BIT_NONE);
01306 }
01307
01308 static void ChangeTileOwner_TunnelBridge(TileIndex tile, Owner old_owner, Owner new_owner)
01309 {
01310 for (RoadType rt = ROADTYPE_ROAD; rt < ROADTYPE_END; rt++) {
01311
01312 if (GetRoadOwner(tile, rt) == old_owner) {
01313 SetRoadOwner(tile, rt, new_owner == INVALID_OWNER ? OWNER_NONE : new_owner);
01314 }
01315 }
01316
01317 if (!IsTileOwner(tile, old_owner)) return;
01318
01319 if (new_owner != INVALID_OWNER) {
01320 SetTileOwner(tile, new_owner);
01321 } else {
01322 if (DoCommand(tile, 0, 0, DC_EXEC | DC_BANKRUPT, CMD_LANDSCAPE_CLEAR).Failed()) {
01323
01324
01325
01326
01327 assert(GetTunnelBridgeTransportType(tile) != TRANSPORT_RAIL);
01328 SetTileOwner(tile, OWNER_NONE);
01329 }
01330 }
01331 }
01332
01333
01334 static const byte _tunnel_fractcoord_1[4] = {0x8E, 0x18, 0x81, 0xE8};
01335 static const byte _tunnel_fractcoord_2[4] = {0x81, 0x98, 0x87, 0x38};
01336 static const byte _tunnel_fractcoord_3[4] = {0x82, 0x88, 0x86, 0x48};
01337 static const byte _exit_tunnel_track[4] = {1, 2, 1, 2};
01338
01340 static const Trackdir _road_exit_tunnel_state[DIAGDIR_END] = {
01341 TRACKDIR_X_SW, TRACKDIR_Y_NW, TRACKDIR_X_NE, TRACKDIR_Y_SE
01342 };
01343 static const byte _road_exit_tunnel_frame[4] = {2, 7, 9, 4};
01344
01345 static const byte _tunnel_fractcoord_4[4] = {0x52, 0x85, 0x98, 0x29};
01346 static const byte _tunnel_fractcoord_5[4] = {0x92, 0x89, 0x58, 0x25};
01347 static const byte _tunnel_fractcoord_6[4] = {0x92, 0x89, 0x56, 0x45};
01348 static const byte _tunnel_fractcoord_7[4] = {0x52, 0x85, 0x96, 0x49};
01349
01350 static VehicleEnterTileStatus VehicleEnter_TunnelBridge(Vehicle *v, TileIndex tile, int x, int y)
01351 {
01352 int z = GetSlopeZ(x, y) - v->z_pos;
01353
01354 if (abs(z) > 2) return VETSB_CANNOT_ENTER;
01355 const DiagDirection dir = GetTunnelBridgeDirection(tile);
01356
01357 if (IsTunnel(tile)) {
01358 byte fc;
01359 DiagDirection vdir;
01360
01361 if (v->type == VEH_TRAIN) {
01362 Train *t = Train::From(v);
01363 fc = (x & 0xF) + (y << 4);
01364
01365 vdir = DirToDiagDir(t->direction);
01366
01367 if (t->track != TRACK_BIT_WORMHOLE && dir == vdir) {
01368 if (t->IsFrontEngine() && fc == _tunnel_fractcoord_1[dir]) {
01369 if (!PlayVehicleSound(t, VSE_TUNNEL) && RailVehInfo(t->engine_type)->engclass == 0) {
01370 SndPlayVehicleFx(SND_05_TRAIN_THROUGH_TUNNEL, v);
01371 }
01372 return VETSB_CONTINUE;
01373 }
01374 if (fc == _tunnel_fractcoord_2[dir]) {
01375 t->tile = tile;
01376 t->track = TRACK_BIT_WORMHOLE;
01377 t->vehstatus |= VS_HIDDEN;
01378 return VETSB_ENTERED_WORMHOLE;
01379 }
01380 }
01381
01382 if (dir == ReverseDiagDir(vdir) && fc == _tunnel_fractcoord_3[dir] && z == 0) {
01383
01384 t->tile = tile;
01385 t->track = (TrackBits)_exit_tunnel_track[dir];
01386 assert(t->track);
01387 t->vehstatus &= ~VS_HIDDEN;
01388 return VETSB_ENTERED_WORMHOLE;
01389 }
01390 } else if (v->type == VEH_ROAD) {
01391 RoadVehicle *rv = RoadVehicle::From(v);
01392 fc = (x & 0xF) + (y << 4);
01393 vdir = DirToDiagDir(v->direction);
01394
01395
01396 if (rv->state != RVSB_WORMHOLE && dir == vdir) {
01397 if (fc == _tunnel_fractcoord_4[dir] ||
01398 fc == _tunnel_fractcoord_5[dir]) {
01399 rv->tile = tile;
01400 rv->state = RVSB_WORMHOLE;
01401 rv->vehstatus |= VS_HIDDEN;
01402 return VETSB_ENTERED_WORMHOLE;
01403 } else {
01404 return VETSB_CONTINUE;
01405 }
01406 }
01407
01408 if (dir == ReverseDiagDir(vdir) && (
01409
01410 fc == _tunnel_fractcoord_6[dir] ||
01411 fc == _tunnel_fractcoord_7[dir]
01412 ) &&
01413 z == 0) {
01414 rv->tile = tile;
01415 rv->state = _road_exit_tunnel_state[dir];
01416 rv->frame = _road_exit_tunnel_frame[dir];
01417 rv->vehstatus &= ~VS_HIDDEN;
01418 return VETSB_ENTERED_WORMHOLE;
01419 }
01420 }
01421 } else {
01422
01423 if (v->IsPrimaryVehicle() && v->type != VEH_SHIP) {
01424
01425 uint16 spd = GetBridgeSpec(GetBridgeType(tile))->speed;
01426
01427 if (v->type == VEH_ROAD) spd *= 2;
01428 if (v->cur_speed > spd) v->cur_speed = spd;
01429 }
01430
01431 if (DirToDiagDir(v->direction) == dir) {
01432 switch (dir) {
01433 default: NOT_REACHED();
01434 case DIAGDIR_NE: if ((x & 0xF) != 0) return VETSB_CONTINUE; break;
01435 case DIAGDIR_SE: if ((y & 0xF) != TILE_SIZE - 1) return VETSB_CONTINUE; break;
01436 case DIAGDIR_SW: if ((x & 0xF) != TILE_SIZE - 1) return VETSB_CONTINUE; break;
01437 case DIAGDIR_NW: if ((y & 0xF) != 0) return VETSB_CONTINUE; break;
01438 }
01439 switch (v->type) {
01440 case VEH_TRAIN: {
01441 Train *t = Train::From(v);
01442 t->track = TRACK_BIT_WORMHOLE;
01443 ClrBit(t->flags, VRF_GOINGUP);
01444 ClrBit(t->flags, VRF_GOINGDOWN);
01445 } break;
01446
01447 case VEH_ROAD:
01448 RoadVehicle::From(v)->state = RVSB_WORMHOLE;
01449 break;
01450
01451 case VEH_SHIP:
01452 Ship::From(v)->state = TRACK_BIT_WORMHOLE;
01453 break;
01454
01455 default: NOT_REACHED();
01456 }
01457 return VETSB_ENTERED_WORMHOLE;
01458 } else if (DirToDiagDir(v->direction) == ReverseDiagDir(dir)) {
01459 v->tile = tile;
01460 switch (v->type) {
01461 case VEH_TRAIN: {
01462 Train *t = Train::From(v);
01463 if (t->track == TRACK_BIT_WORMHOLE) {
01464 t->track = (DiagDirToAxis(dir) == AXIS_X ? TRACK_BIT_X : TRACK_BIT_Y);
01465 return VETSB_ENTERED_WORMHOLE;
01466 }
01467 } break;
01468
01469 case VEH_ROAD: {
01470 RoadVehicle *rv = RoadVehicle::From(v);
01471 if (rv->state == RVSB_WORMHOLE) {
01472 rv->state = _road_exit_tunnel_state[dir];
01473 rv->frame = 0;
01474 return VETSB_ENTERED_WORMHOLE;
01475 }
01476 } break;
01477
01478 case VEH_SHIP: {
01479 Ship *ship = Ship::From(v);
01480 if (ship->state == TRACK_BIT_WORMHOLE) {
01481 ship->state = (DiagDirToAxis(dir) == AXIS_X ? TRACK_BIT_X : TRACK_BIT_Y);
01482 return VETSB_ENTERED_WORMHOLE;
01483 }
01484 } break;
01485
01486 default: NOT_REACHED();
01487 }
01488 }
01489 }
01490 return VETSB_CONTINUE;
01491 }
01492
01493 static CommandCost TerraformTile_TunnelBridge(TileIndex tile, DoCommandFlag flags, uint z_new, Slope tileh_new)
01494 {
01495 if (_settings_game.construction.build_on_slopes && AutoslopeEnabled() && IsBridge(tile) && GetTunnelBridgeTransportType(tile) != TRANSPORT_WATER) {
01496 DiagDirection direction = GetTunnelBridgeDirection(tile);
01497 Axis axis = DiagDirToAxis(direction);
01498 CommandCost res;
01499 uint z_old;
01500 Slope tileh_old = GetTileSlope(tile, &z_old);
01501
01502
01503 if ((direction == DIAGDIR_NW) || (direction == DIAGDIR_NE)) {
01504 CheckBridgeSlopeSouth(axis, &tileh_old, &z_old);
01505 res = CheckBridgeSlopeSouth(axis, &tileh_new, &z_new);
01506 } else {
01507 CheckBridgeSlopeNorth(axis, &tileh_old, &z_old);
01508 res = CheckBridgeSlopeNorth(axis, &tileh_new, &z_new);
01509 }
01510
01511
01512 if (res.Succeeded() && (z_old == z_new) && (tileh_old == tileh_new)) return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
01513 }
01514
01515 return DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
01516 }
01517
01518 extern const TileTypeProcs _tile_type_tunnelbridge_procs = {
01519 DrawTile_TunnelBridge,
01520 GetSlopeZ_TunnelBridge,
01521 ClearTile_TunnelBridge,
01522 NULL,
01523 GetTileDesc_TunnelBridge,
01524 GetTileTrackStatus_TunnelBridge,
01525 NULL,
01526 NULL,
01527 TileLoop_TunnelBridge,
01528 ChangeTileOwner_TunnelBridge,
01529 NULL,
01530 VehicleEnter_TunnelBridge,
01531 GetFoundation_TunnelBridge,
01532 TerraformTile_TunnelBridge,
01533 };