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00016 #include "stdafx.h"
00017 #include "newgrf_object.h"
00018 #include "viewport_func.h"
00019 #include "cmd_helper.h"
00020 #include "command_func.h"
00021 #include "town.h"
00022 #include "train.h"
00023 #include "ship.h"
00024 #include "roadveh.h"
00025 #include "water_map.h"
00026 #include "station_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 "clear_func.h"
00034 #include "vehicle_func.h"
00035 #include "vehicle_gui.h"
00036 #include "sound_func.h"
00037 #include "tunnelbridge.h"
00038 #include "cheat_type.h"
00039 #include "elrail_func.h"
00040 #include "pbs.h"
00041 #include "company_base.h"
00042 #include "newgrf_railtype.h"
00043 #include "object_base.h"
00044 #include "water.h"
00045 #include "company_gui.h"
00046
00047 #include "table/sprites.h"
00048 #include "table/strings.h"
00049 #include "table/bridge_land.h"
00050
00051 BridgeSpec _bridge[MAX_BRIDGES];
00052 TileIndex _build_tunnel_endtile;
00053
00055 static const int BRIDGE_Z_START = 3;
00056
00058 void ResetBridges()
00059 {
00060
00061 for (BridgeType i = 0; i < MAX_BRIDGES; i++) {
00062 if (_bridge[i].sprite_table != NULL) {
00063 for (BridgePieces j = BRIDGE_PIECE_NORTH; j < BRIDGE_PIECE_INVALID; j++) free(_bridge[i].sprite_table[j]);
00064 free(_bridge[i].sprite_table);
00065 }
00066 }
00067
00068
00069 memset(&_bridge, 0, sizeof(_bridge));
00070
00071 memcpy(&_bridge, &_orig_bridge, sizeof(_orig_bridge));
00072 }
00073
00080 int CalcBridgeLenCostFactor(int length)
00081 {
00082 if (length < 2) return length;
00083
00084 length -= 2;
00085 int sum = 2;
00086 for (int delta = 1;; delta++) {
00087 for (int count = 0; count < delta; count++) {
00088 if (length == 0) return sum;
00089 sum += delta;
00090 length--;
00091 }
00092 }
00093 }
00094
00101 Foundation GetBridgeFoundation(Slope tileh, Axis axis)
00102 {
00103 if (tileh == SLOPE_FLAT ||
00104 ((tileh == SLOPE_NE || tileh == SLOPE_SW) && axis == AXIS_X) ||
00105 ((tileh == SLOPE_NW || tileh == SLOPE_SE) && axis == AXIS_Y)) return FOUNDATION_NONE;
00106
00107 return (HasSlopeHighestCorner(tileh) ? InclinedFoundation(axis) : FlatteningFoundation(tileh));
00108 }
00109
00113 BridgeType GetFastestAvailableBridgeType(uint bridge_len)
00114 {
00115 BridgeType fastest_type = 0;
00116 uint16 fastest_speed = 0;
00117
00118 for (BridgeType brd_type = 0; brd_type != MAX_BRIDGES; brd_type++) {
00119 CommandCost ret = CheckBridgeAvailability(brd_type, bridge_len, DC_NONE);
00120 if (!ret.Failed()) {
00121
00122 const BridgeSpec *b = GetBridgeSpec(brd_type);
00123 if (b->speed >= fastest_speed) {
00124 fastest_type = brd_type;
00125 fastest_speed = b->speed;
00126 }
00127 }
00128 }
00129
00130 return fastest_type;
00131 }
00132
00140 bool HasBridgeFlatRamp(Slope tileh, Axis axis)
00141 {
00142 ApplyFoundationToSlope(GetBridgeFoundation(tileh, axis), &tileh);
00143
00144 return (tileh != SLOPE_FLAT);
00145 }
00146
00147 static inline const PalSpriteID *GetBridgeSpriteTable(int index, BridgePieces table)
00148 {
00149 const BridgeSpec *bridge = GetBridgeSpec(index);
00150 assert(table < BRIDGE_PIECE_INVALID);
00151 if (bridge->sprite_table == NULL || bridge->sprite_table[table] == NULL) {
00152 return _bridge_sprite_table[index][table];
00153 } else {
00154 return bridge->sprite_table[table];
00155 }
00156 }
00157
00158
00167 static CommandCost CheckBridgeSlopeNorth(Axis axis, Slope *tileh, uint *z)
00168 {
00169 Foundation f = GetBridgeFoundation(*tileh, axis);
00170 *z += ApplyFoundationToSlope(f, tileh);
00171
00172 Slope valid_inclined = (axis == AXIS_X ? SLOPE_NE : SLOPE_NW);
00173 if ((*tileh != SLOPE_FLAT) && (*tileh != valid_inclined)) return CMD_ERROR;
00174
00175 if (f == FOUNDATION_NONE) return CommandCost();
00176
00177 return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
00178 }
00179
00188 static CommandCost CheckBridgeSlopeSouth(Axis axis, Slope *tileh, uint *z)
00189 {
00190 Foundation f = GetBridgeFoundation(*tileh, axis);
00191 *z += ApplyFoundationToSlope(f, tileh);
00192
00193 Slope valid_inclined = (axis == AXIS_X ? SLOPE_SW : SLOPE_SE);
00194 if ((*tileh != SLOPE_FLAT) && (*tileh != valid_inclined)) return CMD_ERROR;
00195
00196 if (f == FOUNDATION_NONE) return CommandCost();
00197
00198 return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
00199 }
00200
00207 CommandCost CheckBridgeAvailability(BridgeType bridge_type, uint bridge_len, DoCommandFlag flags)
00208 {
00209 if (flags & DC_QUERY_COST) {
00210 if (bridge_len <= _settings_game.construction.max_bridge_length) return CommandCost();
00211 return_cmd_error(STR_ERROR_BRIDGE_TOO_LONG);
00212 }
00213
00214 if (bridge_type >= MAX_BRIDGES) return CMD_ERROR;
00215
00216 const BridgeSpec *b = GetBridgeSpec(bridge_type);
00217 if (b->avail_year > _cur_year) return CMD_ERROR;
00218
00219 uint max = min(b->max_length, _settings_game.construction.max_bridge_length);
00220
00221 if (b->min_length > bridge_len) return CMD_ERROR;
00222 if (bridge_len <= max) return CommandCost();
00223 return_cmd_error(STR_ERROR_BRIDGE_TOO_LONG);
00224 }
00225
00238 CommandCost CmdBuildBridge(TileIndex end_tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00239 {
00240 RailType railtype = INVALID_RAILTYPE;
00241 RoadTypes roadtypes = ROADTYPES_NONE;
00242
00243
00244 BridgeType bridge_type = GB(p2, 0, 8);
00245
00246 if (!IsValidTile(p1)) return_cmd_error(STR_ERROR_BRIDGE_THROUGH_MAP_BORDER);
00247
00248 TransportType transport_type = Extract<TransportType, 15, 2>(p2);
00249
00250
00251 switch (transport_type) {
00252 case TRANSPORT_ROAD:
00253 roadtypes = Extract<RoadTypes, 8, 2>(p2);
00254 if (!HasExactlyOneBit(roadtypes) || !HasRoadTypesAvail(_current_company, roadtypes)) return CMD_ERROR;
00255 break;
00256
00257 case TRANSPORT_RAIL:
00258 railtype = Extract<RailType, 8, 4>(p2);
00259 if (!ValParamRailtype(railtype)) return CMD_ERROR;
00260 break;
00261
00262 case TRANSPORT_WATER:
00263 break;
00264
00265 default:
00266
00267 return CMD_ERROR;
00268 }
00269 TileIndex tile_start = p1;
00270 TileIndex tile_end = end_tile;
00271
00272 if (tile_start == tile_end) {
00273 return_cmd_error(STR_ERROR_CAN_T_START_AND_END_ON);
00274 }
00275
00276 Axis direction;
00277 if (TileX(tile_start) == TileX(tile_end)) {
00278 direction = AXIS_Y;
00279 } else if (TileY(tile_start) == TileY(tile_end)) {
00280 direction = AXIS_X;
00281 } else {
00282 return_cmd_error(STR_ERROR_START_AND_END_MUST_BE_IN);
00283 }
00284
00285 if (tile_end < tile_start) Swap(tile_start, tile_end);
00286
00287 uint bridge_len = GetTunnelBridgeLength(tile_start, tile_end);
00288 if (transport_type != TRANSPORT_WATER) {
00289
00290 CommandCost ret = CheckBridgeAvailability(bridge_type, bridge_len, flags);
00291 if (ret.Failed()) return ret;
00292 } else {
00293 if (bridge_len > _settings_game.construction.max_bridge_length) return_cmd_error(STR_ERROR_BRIDGE_TOO_LONG);
00294 }
00295
00296 uint z_start;
00297 uint z_end;
00298 Slope tileh_start = GetTileSlope(tile_start, &z_start);
00299 Slope tileh_end = GetTileSlope(tile_end, &z_end);
00300 bool pbs_reservation = false;
00301
00302 CommandCost terraform_cost_north = CheckBridgeSlopeNorth(direction, &tileh_start, &z_start);
00303 CommandCost terraform_cost_south = CheckBridgeSlopeSouth(direction, &tileh_end, &z_end);
00304
00305
00306 if (transport_type == TRANSPORT_WATER && (tileh_start == SLOPE_FLAT || tileh_end == SLOPE_FLAT)) return_cmd_error(STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION);
00307 if (z_start != z_end) return_cmd_error(STR_ERROR_BRIDGEHEADS_NOT_SAME_HEIGHT);
00308
00309 CommandCost cost(EXPENSES_CONSTRUCTION);
00310 Owner owner;
00311 if (IsBridgeTile(tile_start) && IsBridgeTile(tile_end) &&
00312 GetOtherBridgeEnd(tile_start) == tile_end &&
00313 GetTunnelBridgeTransportType(tile_start) == transport_type) {
00314
00315
00316
00317 if (transport_type == TRANSPORT_RAIL && GetRailType(tile_start) != railtype) {
00318 return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00319 }
00320
00321
00322 if (!(flags & DC_QUERY_COST) && IsTileOwner(tile_start, OWNER_TOWN) &&
00323 GetBridgeSpec(bridge_type)->speed < GetBridgeSpec(GetBridgeType(tile_start))->speed) {
00324 Town *t = ClosestTownFromTile(tile_start, UINT_MAX);
00325
00326 if (t == NULL) {
00327 return CMD_ERROR;
00328 } else {
00329 SetDParam(0, t->index);
00330 return_cmd_error(STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS);
00331 }
00332 }
00333
00334
00335 if (!(flags & DC_QUERY_COST) && bridge_type == GetBridgeType(tile_start)) {
00336 return_cmd_error(STR_ERROR_ALREADY_BUILT);
00337 }
00338
00339
00340 if (!IsTileOwner(tile_start, _current_company) && !IsTileOwner(tile_start, OWNER_TOWN)) {
00341 return_cmd_error(STR_ERROR_AREA_IS_OWNED_BY_ANOTHER);
00342 }
00343
00344 cost.AddCost((bridge_len + 1) * _price[PR_CLEAR_BRIDGE]);
00345 owner = GetTileOwner(tile_start);
00346
00347 switch (transport_type) {
00348 case TRANSPORT_RAIL:
00349
00350 pbs_reservation = HasTunnelBridgeReservation(tile_start);
00351 break;
00352
00353 case TRANSPORT_ROAD:
00354
00355 roadtypes |= GetRoadTypes(tile_start);
00356 break;
00357
00358 default: break;
00359 }
00360 } else {
00361
00362
00363 bool allow_on_slopes = (_settings_game.construction.build_on_slopes && transport_type != TRANSPORT_WATER);
00364
00365
00366 CommandCost ret = DoCommand(tile_start, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00367 if (ret.Failed()) return ret;
00368 cost = ret;
00369
00370 if (terraform_cost_north.Failed() || (terraform_cost_north.GetCost() != 0 && !allow_on_slopes)) return_cmd_error(STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION);
00371 cost.AddCost(terraform_cost_north);
00372
00373
00374 ret = DoCommand(tile_end, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00375 if (ret.Failed()) return ret;
00376 cost.AddCost(ret);
00377
00378
00379 if (terraform_cost_south.Failed() || (terraform_cost_south.GetCost() != 0 && !allow_on_slopes)) return_cmd_error(STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION);
00380 cost.AddCost(terraform_cost_south);
00381
00382 const TileIndex heads[] = {tile_start, tile_end};
00383 for (int i = 0; i < 2; i++) {
00384 if (MayHaveBridgeAbove(heads[i])) {
00385 if (IsBridgeAbove(heads[i])) {
00386 TileIndex north_head = GetNorthernBridgeEnd(heads[i]);
00387
00388 if (direction == GetBridgeAxis(heads[i])) return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00389
00390 if (z_start + TILE_HEIGHT == GetBridgeHeight(north_head)) {
00391 return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00392 }
00393 }
00394 }
00395 }
00396
00397 TileIndexDiff delta = (direction == AXIS_X ? TileDiffXY(1, 0) : TileDiffXY(0, 1));
00398 for (TileIndex tile = tile_start + delta; tile != tile_end; tile += delta) {
00399 if (GetTileMaxZ(tile) > z_start) return_cmd_error(STR_ERROR_BRIDGE_TOO_LOW_FOR_TERRAIN);
00400
00401 if (z_start + TILE_HEIGHT > (TileHeight(tile) + MAX_BRIDGE_HEIGHT) * TILE_HEIGHT) {
00402
00403
00404
00405 return_cmd_error(STR_ERROR_BRIDGE_TOO_HIGH_FOR_TERRAIN);
00406 }
00407
00408 if (MayHaveBridgeAbove(tile) && IsBridgeAbove(tile)) {
00409
00410 return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00411 }
00412
00413 switch (GetTileType(tile)) {
00414 case MP_WATER:
00415 if (!IsWater(tile) && !IsCoast(tile)) goto not_valid_below;
00416 break;
00417
00418 case MP_RAILWAY:
00419 if (!IsPlainRail(tile)) goto not_valid_below;
00420 break;
00421
00422 case MP_ROAD:
00423 if (IsRoadDepot(tile)) goto not_valid_below;
00424 break;
00425
00426 case MP_TUNNELBRIDGE:
00427 if (IsTunnel(tile)) break;
00428 if (direction == DiagDirToAxis(GetTunnelBridgeDirection(tile))) goto not_valid_below;
00429 if (z_start < GetBridgeHeight(tile)) goto not_valid_below;
00430 break;
00431
00432 case MP_OBJECT: {
00433 const ObjectSpec *spec = ObjectSpec::GetByTile(tile);
00434 if ((spec->flags & OBJECT_FLAG_ALLOW_UNDER_BRIDGE) == 0) goto not_valid_below;
00435 if (GetTileMaxZ(tile) + spec->height * TILE_HEIGHT > z_start) goto not_valid_below;
00436 break;
00437 }
00438
00439 case MP_CLEAR:
00440 break;
00441
00442 default:
00443 not_valid_below:;
00444
00445 ret = DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00446 if (ret.Failed()) return ret;
00447 cost.AddCost(ret);
00448 break;
00449 }
00450
00451 if (flags & DC_EXEC) {
00452
00453
00454
00455 SetBridgeMiddle(tile, direction);
00456 }
00457 }
00458
00459 owner = _current_company;
00460 }
00461
00462
00463 if (flags & DC_EXEC) {
00464 DiagDirection dir = AxisToDiagDir(direction);
00465
00466 Company *c = Company::GetIfValid(owner);
00467 switch (transport_type) {
00468 case TRANSPORT_RAIL:
00469
00470 if (!IsBridgeTile(tile_start) && c != NULL) c->rail_infrastructure[railtype] += (bridge_len + 2) * TUNNELBRIDGE_TRACKBIT_FACTOR;
00471 MakeRailBridgeRamp(tile_start, owner, bridge_type, dir, railtype);
00472 MakeRailBridgeRamp(tile_end, owner, bridge_type, ReverseDiagDir(dir), railtype);
00473 SetTunnelBridgeReservation(tile_start, pbs_reservation);
00474 SetTunnelBridgeReservation(tile_end, pbs_reservation);
00475 break;
00476
00477 case TRANSPORT_ROAD:
00478 if (c != NULL) {
00479
00480 RoadType new_rt;
00481 FOR_EACH_SET_ROADTYPE(new_rt, roadtypes ^ (IsBridgeTile(tile_start) ? GetRoadTypes(tile_start) : ROADTYPES_NONE)) {
00482
00483 Company::Get(owner)->road_infrastructure[new_rt] += (bridge_len + 2) * 2 * TUNNELBRIDGE_TRACKBIT_FACTOR;
00484 }
00485 }
00486 MakeRoadBridgeRamp(tile_start, owner, bridge_type, dir, roadtypes);
00487 MakeRoadBridgeRamp(tile_end, owner, bridge_type, ReverseDiagDir(dir), roadtypes);
00488 break;
00489
00490 case TRANSPORT_WATER:
00491 if (!IsBridgeTile(tile_start) && c != NULL) c->water_infrastructure += (bridge_len + 2) * TUNNELBRIDGE_TRACKBIT_FACTOR;
00492 MakeAqueductBridgeRamp(tile_start, owner, dir);
00493 MakeAqueductBridgeRamp(tile_end, owner, ReverseDiagDir(dir));
00494 break;
00495
00496 default:
00497 NOT_REACHED();
00498 }
00499
00500
00501 TileIndexDiff delta = (direction == AXIS_X ? TileDiffXY(1, 0) : TileDiffXY(0, 1));
00502 for (TileIndex tile = tile_start; tile <= tile_end; tile += delta) {
00503 MarkTileDirtyByTile(tile);
00504 }
00505 DirtyCompanyInfrastructureWindows(owner);
00506 }
00507
00508 if ((flags & DC_EXEC) && transport_type == TRANSPORT_RAIL) {
00509 Track track = AxisToTrack(direction);
00510 AddSideToSignalBuffer(tile_start, INVALID_DIAGDIR, _current_company);
00511 YapfNotifyTrackLayoutChange(tile_start, track);
00512 }
00513
00514
00515
00516
00517
00518 Company *c = Company::GetIfValid(_current_company);
00519 if (!(flags & DC_QUERY_COST) || (c != NULL && c->is_ai)) {
00520 bridge_len += 2;
00521
00522 switch (transport_type) {
00523 case TRANSPORT_ROAD: cost.AddCost(bridge_len * _price[PR_BUILD_ROAD] * 2); break;
00524 case TRANSPORT_RAIL: cost.AddCost(bridge_len * RailBuildCost(railtype)); break;
00525 default: break;
00526 }
00527
00528 if (c != NULL) bridge_len = CalcBridgeLenCostFactor(bridge_len);
00529
00530 if (transport_type != TRANSPORT_WATER) {
00531 cost.AddCost((int64)bridge_len * _price[PR_BUILD_BRIDGE] * GetBridgeSpec(bridge_type)->price >> 8);
00532 } else {
00533
00534 cost.AddCost((int64)bridge_len * _price[PR_BUILD_AQUEDUCT]);
00535 }
00536
00537 }
00538
00539 return cost;
00540 }
00541
00551 bool IsCrossableWater(TileIndex end_tile, TileIndexDiff delta, DiagDirection direction)
00552 {
00553
00554 if (GetTileSlope(end_tile, NULL) != InclinedSlope(ReverseDiagDir(direction))) return false;
00555
00556
00557 end_tile += delta;
00558 if (!IsValidTile(end_tile)) return false;
00559 if (!(IsWaterTile(end_tile) || IsBuoyTile(end_tile))) return false;
00560
00561
00562 for (;;) {
00563 end_tile += delta;
00564 if (!IsValidTile(end_tile)) return false;
00565 if (GetTileSlope(end_tile, NULL) != SLOPE_FLAT) break;
00566 if (!(IsWaterTile(end_tile) || IsBuoyTile(end_tile))) return false;
00567 }
00568
00569
00570 if (GetTileSlope(end_tile, NULL) != InclinedSlope(direction)) return false;
00571
00572 int tiles = 0;
00573
00574 for (;;) {
00575 end_tile += delta;
00576 if (!IsValidTile(end_tile)) return false;
00577 if (GetTileZ(end_tile) == 0) break;
00578 tiles++;
00579 }
00580
00581
00582 return (tiles >= 2 && tiles <= 4);
00583 }
00584
00595 CommandCost CmdBuildTunnel(TileIndex start_tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00596 {
00597 TransportType transport_type = Extract<TransportType, 8, 2>(p1);
00598
00599 RailType railtype = INVALID_RAILTYPE;
00600 RoadTypes rts = ROADTYPES_NONE;
00601 _build_tunnel_endtile = 0;
00602 switch (transport_type) {
00603 case TRANSPORT_RAIL:
00604 railtype = Extract<RailType, 0, 4>(p1);
00605 if (!ValParamRailtype(railtype)) return CMD_ERROR;
00606 break;
00607
00608 case TRANSPORT_ROAD:
00609 rts = Extract<RoadTypes, 0, 2>(p1);
00610 if (!HasExactlyOneBit(rts) || !HasRoadTypesAvail(_current_company, rts)) return CMD_ERROR;
00611 break;
00612
00613 default: return CMD_ERROR;
00614 }
00615
00616 uint start_z;
00617 uint end_z;
00618 Slope start_tileh = GetTileSlope(start_tile, &start_z);
00619 DiagDirection direction = GetInclinedSlopeDirection(start_tileh);
00620 if (direction == INVALID_DIAGDIR) return_cmd_error(STR_ERROR_SITE_UNSUITABLE_FOR_TUNNEL);
00621
00622 if (HasTileWaterGround(start_tile)) return_cmd_error(STR_ERROR_CAN_T_BUILD_ON_WATER);
00623
00624 CommandCost ret = DoCommand(start_tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00625 if (ret.Failed()) return ret;
00626
00627
00628
00629
00630
00631
00632 TileIndexDiff delta = TileOffsByDiagDir(direction);
00633 DiagDirection tunnel_in_way_dir;
00634 if (DiagDirToAxis(direction) == AXIS_Y) {
00635 tunnel_in_way_dir = (TileX(start_tile) < (MapMaxX() / 2)) ? DIAGDIR_SW : DIAGDIR_NE;
00636 } else {
00637 tunnel_in_way_dir = (TileY(start_tile) < (MapMaxX() / 2)) ? DIAGDIR_SE : DIAGDIR_NW;
00638 }
00639
00640 TileIndex end_tile = start_tile;
00641
00642
00643 int tiles_coef = 3;
00644
00645 int tiles = 0;
00646
00647 int tiles_bump = 25;
00648
00649
00650
00651
00652
00653
00654
00655 int pass_water = 0;
00656
00657 CommandCost cost(EXPENSES_CONSTRUCTION);
00658 Slope end_tileh;
00659 for (;;) {
00660 end_tile += delta;
00661 if (!IsValidTile(end_tile)) return_cmd_error(STR_ERROR_TUNNEL_THROUGH_MAP_BORDER);
00662 end_tileh = GetTileSlope(end_tile, &end_z);
00663
00664 if (start_z == end_z) {
00665 if (start_z > 0) break;
00666
00667 if (end_tileh != SLOPE_FLAT) {
00668 if (pass_water == 2) pass_water = 3;
00669 if (pass_water == 0) {
00670
00671 (tiles >= 2 && tiles <= 4 && IsCrossableWater(end_tile, delta, direction)) ? pass_water = 2 : pass_water = 1;
00672 }
00673
00674 if (pass_water == 1) break;
00675 if (pass_water == 3) pass_water = 1;
00676 }
00677 }
00678
00679 if (!_cheats.crossing_tunnels.value && IsTunnelInWayDir(end_tile, start_z, tunnel_in_way_dir)) {
00680 return_cmd_error(STR_ERROR_ANOTHER_TUNNEL_IN_THE_WAY);
00681 }
00682
00683 tiles++;
00684 if (tiles == tiles_bump) {
00685 tiles_coef++;
00686 tiles_bump *= 2;
00687 }
00688
00689 cost.AddCost(_price[PR_BUILD_TUNNEL]);
00690 cost.AddCost(cost.GetCost() >> tiles_coef);
00691 }
00692
00693
00694 cost.AddCost(_price[PR_BUILD_TUNNEL]);
00695 cost.AddCost(ret);
00696
00697
00698 _build_tunnel_endtile = end_tile;
00699
00700 if (tiles > _settings_game.construction.max_tunnel_length) return_cmd_error(STR_ERROR_TUNNEL_TOO_LONG);
00701
00702 if (HasTileWaterGround(end_tile)) return_cmd_error(STR_ERROR_CAN_T_BUILD_ON_WATER);
00703
00704
00705 ret = DoCommand(end_tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00706 if (ret.Failed()) return_cmd_error(STR_ERROR_UNABLE_TO_EXCAVATE_LAND);
00707 cost.AddCost(ret);
00708
00709
00710 if (end_tileh != ComplementSlope(start_tileh)) {
00711
00712
00713 ClearedObjectArea *coa = FindClearedObject(end_tile);
00714 if (coa == NULL) {
00715 coa = _cleared_object_areas.Append();
00716 coa->first_tile = end_tile;
00717 coa->area = TileArea(end_tile, 1, 1);
00718 }
00719
00720
00721 TileIndex old_first_tile = coa->first_tile;
00722 coa->first_tile = INVALID_TILE;
00723 ret = DoCommand(end_tile, end_tileh & start_tileh, 0, flags, CMD_TERRAFORM_LAND);
00724 coa->first_tile = old_first_tile;
00725 if (ret.Failed()) return_cmd_error(STR_ERROR_UNABLE_TO_EXCAVATE_LAND);
00726 cost.AddCost(ret);
00727 }
00728 cost.AddCost(_price[PR_BUILD_TUNNEL]);
00729
00730
00731 switch (transport_type) {
00732 case TRANSPORT_ROAD: cost.AddCost((tiles + 2) * _price[PR_BUILD_ROAD] * 2); break;
00733 case TRANSPORT_RAIL: cost.AddCost((tiles + 2) * RailBuildCost(railtype)); break;
00734 default: break;
00735 }
00736
00737 if (flags & DC_EXEC) {
00738 Company *c = Company::GetIfValid(_current_company);
00739 uint num_pieces = (tiles + 2) * TUNNELBRIDGE_TRACKBIT_FACTOR;
00740 if (transport_type == TRANSPORT_RAIL) {
00741 if (!IsTunnelTile(start_tile) && c != NULL) c->rail_infrastructure[railtype] += num_pieces;
00742 MakeRailTunnel(start_tile, _current_company, direction, railtype);
00743 MakeRailTunnel(end_tile, _current_company, ReverseDiagDir(direction), railtype);
00744 AddSideToSignalBuffer(start_tile, INVALID_DIAGDIR, _current_company);
00745 YapfNotifyTrackLayoutChange(start_tile, DiagDirToDiagTrack(direction));
00746 } else {
00747 if (c != NULL) {
00748 RoadType rt;
00749 FOR_EACH_SET_ROADTYPE(rt, rts ^ (IsTunnelTile(start_tile) ? GetRoadTypes(start_tile) : ROADTYPES_NONE)) {
00750 c->road_infrastructure[rt] += num_pieces * 2;
00751 }
00752 }
00753 MakeRoadTunnel(start_tile, _current_company, direction, rts);
00754 MakeRoadTunnel(end_tile, _current_company, ReverseDiagDir(direction), rts);
00755 }
00756 DirtyCompanyInfrastructureWindows(_current_company);
00757 }
00758
00759 return cost;
00760 }
00761
00762
00768 static inline CommandCost CheckAllowRemoveTunnelBridge(TileIndex tile)
00769 {
00770
00771 if (_current_company == OWNER_WATER || _game_mode == GM_EDITOR) return CommandCost();
00772
00773 switch (GetTunnelBridgeTransportType(tile)) {
00774 case TRANSPORT_ROAD: {
00775 RoadTypes rts = GetRoadTypes(tile);
00776 Owner road_owner = _current_company;
00777 Owner tram_owner = _current_company;
00778
00779 if (HasBit(rts, ROADTYPE_ROAD)) road_owner = GetRoadOwner(tile, ROADTYPE_ROAD);
00780 if (HasBit(rts, ROADTYPE_TRAM)) tram_owner = GetRoadOwner(tile, ROADTYPE_TRAM);
00781
00782
00783 if (road_owner == OWNER_TOWN && !(_settings_game.construction.extra_dynamite || _cheats.magic_bulldozer.value)) {
00784 return CheckTileOwnership(tile);
00785 }
00786 if (road_owner == OWNER_NONE || road_owner == OWNER_TOWN) road_owner = _current_company;
00787 if (tram_owner == OWNER_NONE) tram_owner = _current_company;
00788
00789 CommandCost ret = CheckOwnership(road_owner, tile);
00790 if (ret.Succeeded()) ret = CheckOwnership(tram_owner, tile);
00791 return ret;
00792 }
00793
00794 case TRANSPORT_RAIL:
00795 case TRANSPORT_WATER:
00796 return CheckOwnership(GetTileOwner(tile));
00797
00798 default: NOT_REACHED();
00799 }
00800 }
00801
00808 static CommandCost DoClearTunnel(TileIndex tile, DoCommandFlag flags)
00809 {
00810 CommandCost ret = CheckAllowRemoveTunnelBridge(tile);
00811 if (ret.Failed()) return ret;
00812
00813 TileIndex endtile = GetOtherTunnelEnd(tile);
00814
00815 ret = TunnelBridgeIsFree(tile, endtile);
00816 if (ret.Failed()) return ret;
00817
00818 _build_tunnel_endtile = endtile;
00819
00820 Town *t = NULL;
00821 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00822 t = ClosestTownFromTile(tile, UINT_MAX);
00823
00824
00825
00826 CommandCost ret = CheckforTownRating(flags, t, TUNNELBRIDGE_REMOVE);
00827 if (ret.Failed()) return ret;
00828 }
00829
00830
00831
00832 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00833 ChangeTownRating(t, RATING_TUNNEL_BRIDGE_DOWN_STEP, RATING_TUNNEL_BRIDGE_MINIMUM, flags);
00834 }
00835
00836 uint len = GetTunnelBridgeLength(tile, endtile) + 2;
00837
00838 if (flags & DC_EXEC) {
00839 if (GetTunnelBridgeTransportType(tile) == TRANSPORT_RAIL) {
00840
00841 DiagDirection dir = GetTunnelBridgeDirection(tile);
00842 Track track = DiagDirToDiagTrack(dir);
00843 Owner owner = GetTileOwner(tile);
00844
00845 Train *v = NULL;
00846 if (HasTunnelBridgeReservation(tile)) {
00847 v = GetTrainForReservation(tile, track);
00848 if (v != NULL) FreeTrainTrackReservation(v);
00849 }
00850
00851 if (Company::IsValidID(owner)) {
00852 Company::Get(owner)->rail_infrastructure[GetRailType(tile)] -= len * TUNNELBRIDGE_TRACKBIT_FACTOR;
00853 DirtyCompanyInfrastructureWindows(owner);
00854 }
00855
00856 DoClearSquare(tile);
00857 DoClearSquare(endtile);
00858
00859
00860 AddSideToSignalBuffer(tile, ReverseDiagDir(dir), owner);
00861 AddSideToSignalBuffer(endtile, dir, owner);
00862
00863 YapfNotifyTrackLayoutChange(tile, track);
00864 YapfNotifyTrackLayoutChange(endtile, track);
00865
00866 if (v != NULL) TryPathReserve(v);
00867 } else {
00868 RoadType rt;
00869 FOR_EACH_SET_ROADTYPE(rt, GetRoadTypes(tile)) {
00870
00871 Company *c = Company::GetIfValid(GetRoadOwner(tile, rt));
00872 if (c != NULL) {
00873 c->road_infrastructure[rt] -= len * 2 * TUNNELBRIDGE_TRACKBIT_FACTOR;
00874 DirtyCompanyInfrastructureWindows(c->index);
00875 }
00876 }
00877
00878 DoClearSquare(tile);
00879 DoClearSquare(endtile);
00880 }
00881 }
00882 return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_CLEAR_TUNNEL] * len);
00883 }
00884
00885
00892 static CommandCost DoClearBridge(TileIndex tile, DoCommandFlag flags)
00893 {
00894 CommandCost ret = CheckAllowRemoveTunnelBridge(tile);
00895 if (ret.Failed()) return ret;
00896
00897 TileIndex endtile = GetOtherBridgeEnd(tile);
00898
00899 ret = TunnelBridgeIsFree(tile, endtile);
00900 if (ret.Failed()) return ret;
00901
00902 DiagDirection direction = GetTunnelBridgeDirection(tile);
00903 TileIndexDiff delta = TileOffsByDiagDir(direction);
00904
00905 Town *t = NULL;
00906 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00907 t = ClosestTownFromTile(tile, UINT_MAX);
00908
00909
00910
00911 CommandCost ret = CheckforTownRating(flags, t, TUNNELBRIDGE_REMOVE);
00912 if (ret.Failed()) return ret;
00913 }
00914
00915
00916
00917 if (IsTileOwner(tile, OWNER_TOWN) && _game_mode != GM_EDITOR) {
00918 ChangeTownRating(t, RATING_TUNNEL_BRIDGE_DOWN_STEP, RATING_TUNNEL_BRIDGE_MINIMUM, flags);
00919 }
00920
00921 Money base_cost = (GetTunnelBridgeTransportType(tile) != TRANSPORT_WATER) ? _price[PR_CLEAR_BRIDGE] : _price[PR_CLEAR_AQUEDUCT];
00922 uint len = GetTunnelBridgeLength(tile, endtile) + 2;
00923
00924 if (flags & DC_EXEC) {
00925
00926 bool rail = GetTunnelBridgeTransportType(tile) == TRANSPORT_RAIL;
00927 Owner owner = GetTileOwner(tile);
00928 uint height = GetBridgeHeight(tile);
00929 Train *v = NULL;
00930
00931 if (rail && HasTunnelBridgeReservation(tile)) {
00932 v = GetTrainForReservation(tile, DiagDirToDiagTrack(direction));
00933 if (v != NULL) FreeTrainTrackReservation(v);
00934 }
00935
00936
00937 if (rail) {
00938 if (Company::IsValidID(owner)) Company::Get(owner)->rail_infrastructure[GetRailType(tile)] -= len * TUNNELBRIDGE_TRACKBIT_FACTOR;
00939 } else if (GetTunnelBridgeTransportType(tile) == TRANSPORT_ROAD) {
00940 RoadType rt;
00941 FOR_EACH_SET_ROADTYPE(rt, GetRoadTypes(tile)) {
00942 Company *c = Company::GetIfValid(GetRoadOwner(tile, rt));
00943 if (c != NULL) {
00944
00945 c->road_infrastructure[rt] -= len * 2 * TUNNELBRIDGE_TRACKBIT_FACTOR;
00946 DirtyCompanyInfrastructureWindows(c->index);
00947 }
00948 }
00949 } else {
00950 if (Company::IsValidID(owner)) Company::Get(owner)->water_infrastructure -= len * TUNNELBRIDGE_TRACKBIT_FACTOR;
00951 }
00952 DirtyCompanyInfrastructureWindows(owner);
00953
00954 DoClearSquare(tile);
00955 DoClearSquare(endtile);
00956 for (TileIndex c = tile + delta; c != endtile; c += delta) {
00957
00958 if (IsNormalRoadTile(c) && GetRoadside(c) == ROADSIDE_TREES) {
00959 uint minz = GetTileMaxZ(c) + 3 * TILE_HEIGHT;
00960 if (height < minz) SetRoadside(c, ROADSIDE_PAVED);
00961 }
00962 ClearBridgeMiddle(c);
00963 MarkTileDirtyByTile(c);
00964 }
00965
00966 if (rail) {
00967
00968 AddSideToSignalBuffer(tile, ReverseDiagDir(direction), owner);
00969 AddSideToSignalBuffer(endtile, direction, owner);
00970
00971 Track track = DiagDirToDiagTrack(direction);
00972 YapfNotifyTrackLayoutChange(tile, track);
00973 YapfNotifyTrackLayoutChange(endtile, track);
00974
00975 if (v != NULL) TryPathReserve(v, true);
00976 }
00977 }
00978
00979 return CommandCost(EXPENSES_CONSTRUCTION, len * base_cost);
00980 }
00981
00988 static CommandCost ClearTile_TunnelBridge(TileIndex tile, DoCommandFlag flags)
00989 {
00990 if (IsTunnel(tile)) {
00991 if (flags & DC_AUTO) return_cmd_error(STR_ERROR_MUST_DEMOLISH_TUNNEL_FIRST);
00992 return DoClearTunnel(tile, flags);
00993 } else {
00994 if (flags & DC_AUTO) return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00995 return DoClearBridge(tile, flags);
00996 }
00997 }
00998
01009 static inline void DrawPillar(const PalSpriteID *psid, int x, int y, int z, int w, int h, const SubSprite *subsprite)
01010 {
01011 static const int PILLAR_Z_OFFSET = TILE_HEIGHT - BRIDGE_Z_START;
01012 AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, w, h, BB_HEIGHT_UNDER_BRIDGE - PILLAR_Z_OFFSET, z, IsTransparencySet(TO_BRIDGES), 0, 0, -PILLAR_Z_OFFSET, subsprite);
01013 }
01014
01026 static int DrawPillarColumn(int z_bottom, int z_top, const PalSpriteID *psid, int x, int y, int w, int h)
01027 {
01028 int cur_z;
01029 for (cur_z = z_top; cur_z >= z_bottom; cur_z -= TILE_HEIGHT) {
01030 DrawPillar(psid, x, y, cur_z, w, h, NULL);
01031 }
01032 return cur_z;
01033 }
01034
01046 static void DrawBridgePillars(const PalSpriteID *psid, const TileInfo *ti, Axis axis, bool drawfarpillar, int x, int y, int z_bridge)
01047 {
01048 static const int bounding_box_size[2] = {16, 2};
01049 static const int back_pillar_offset[2] = { 0, 9};
01050
01051 static const int INF = 1000;
01052 static const SubSprite half_pillar_sub_sprite[2][2] = {
01053 { { -14, -INF, INF, INF }, { -INF, -INF, -15, INF } },
01054 { { -INF, -INF, 15, INF }, { 16, -INF, INF, INF } },
01055 };
01056
01057 if (psid->sprite == 0) return;
01058
01059
01060 DiagDirection south_dir = AxisToDiagDir(axis);
01061 int z_front_north = ti->z;
01062 int z_back_north = ti->z;
01063 int z_front_south = ti->z;
01064 int z_back_south = ti->z;
01065 GetSlopeZOnEdge(ti->tileh, south_dir, &z_front_south, &z_back_south);
01066 GetSlopeZOnEdge(ti->tileh, ReverseDiagDir(south_dir), &z_front_north, &z_back_north);
01067
01068
01069 int z_front = max(z_front_north, z_front_south);
01070 int z_back = max(z_back_north, z_back_south);
01071
01072
01073 int w = bounding_box_size[axis];
01074 int h = bounding_box_size[OtherAxis(axis)];
01075
01076 int x_back = x - back_pillar_offset[axis];
01077 int y_back = y - back_pillar_offset[OtherAxis(axis)];
01078
01079
01080 int bottom_z = DrawPillarColumn(z_front, z_bridge, psid, x, y, w, h);
01081 if (z_front_north < z_front) DrawPillar(psid, x, y, bottom_z, w, h, &half_pillar_sub_sprite[axis][0]);
01082 if (z_front_south < z_front) DrawPillar(psid, x, y, bottom_z, w, h, &half_pillar_sub_sprite[axis][1]);
01083
01084
01085 int z_bridge_back = z_bridge - 2 * (int)TILE_HEIGHT;
01086 if (drawfarpillar && (z_back_north <= z_bridge_back || z_back_south <= z_bridge_back)) {
01087 bottom_z = DrawPillarColumn(z_back, z_bridge_back, psid, x_back, y_back, w, h);
01088 if (z_back_north < z_back) DrawPillar(psid, x_back, y_back, bottom_z, w, h, &half_pillar_sub_sprite[axis][0]);
01089 if (z_back_south < z_back) DrawPillar(psid, x_back, y_back, bottom_z, w, h, &half_pillar_sub_sprite[axis][1]);
01090 }
01091 }
01092
01102 static void DrawBridgeTramBits(int x, int y, int z, int offset, bool overlay, bool head)
01103 {
01104 static const SpriteID tram_offsets[2][6] = { { 107, 108, 109, 110, 111, 112 }, { 4, 5, 15, 16, 17, 18 } };
01105 static const SpriteID back_offsets[6] = { 95, 96, 99, 102, 100, 101 };
01106 static const SpriteID front_offsets[6] = { 97, 98, 103, 106, 104, 105 };
01107
01108 static const uint size_x[6] = { 1, 16, 16, 1, 16, 1 };
01109 static const uint size_y[6] = { 16, 1, 1, 16, 1, 16 };
01110 static const uint front_bb_offset_x[6] = { 15, 0, 0, 15, 0, 15 };
01111 static const uint front_bb_offset_y[6] = { 0, 15, 15, 0, 15, 0 };
01112
01113
01114
01115 if (head || !IsInvisibilitySet(TO_BRIDGES)) {
01116 AddSortableSpriteToDraw(SPR_TRAMWAY_BASE + tram_offsets[overlay][offset], PAL_NONE,
01117 x, y, size_x[offset], size_y[offset], 0x28, z,
01118 !head && IsTransparencySet(TO_BRIDGES));
01119 }
01120
01121
01122 if (!IsInvisibilitySet(TO_CATENARY)) {
01123 AddSortableSpriteToDraw(SPR_TRAMWAY_BASE + back_offsets[offset], PAL_NONE,
01124 x, y, size_x[offset], size_y[offset], 0x28, z,
01125 IsTransparencySet(TO_CATENARY));
01126 }
01127
01128
01129 EndSpriteCombine();
01130 StartSpriteCombine();
01131
01132
01133 if (!IsInvisibilitySet(TO_CATENARY)) {
01134 AddSortableSpriteToDraw(SPR_TRAMWAY_BASE + front_offsets[offset], PAL_NONE,
01135 x, y, size_x[offset] + front_bb_offset_x[offset], size_y[offset] + front_bb_offset_y[offset], 0x28, z,
01136 IsTransparencySet(TO_CATENARY), front_bb_offset_x[offset], front_bb_offset_y[offset]);
01137 }
01138 }
01139
01141 static void DrawTunnelBridgeRampSignal(const TileInfo *ti)
01142 {
01143 bool side = (_settings_game.vehicle.road_side != 0) &&_settings_game.construction.signal_side;
01144
01145 static const Point SignalPositions[2][4] = {
01146 {
01147 {13, 3}, { 2, 13}, { 3, 4}, {13, 14}
01148 }, {
01149 {14, 13}, { 3, 3}, {13, 2}, { 3, 13}
01150 }
01151 };
01152
01153 uint position;
01154 DiagDirection dir = GetTunnelBridgeDirection(ti->tile);
01155 if (IsTunnelBridgeExit(ti->tile)) dir = ReverseDiagDir(dir);
01156
01157 switch (dir) {
01158 default: NOT_REACHED();
01159 case DIAGDIR_NE: position = 0; break;
01160 case DIAGDIR_SE: position = 2; break;
01161 case DIAGDIR_SW: position = 1; break;
01162 case DIAGDIR_NW: position = 3; break;
01163 }
01164
01165 uint x = ti->x + SignalPositions[side][position].x;
01166 uint y = ti->y + SignalPositions[side][position].y;
01167 uint z = ti->z;
01168 if (ti->tileh != SLOPE_FLAT && IsBridge(ti->tile)) z += 8;
01169 SignalVariant variant = (_cur_year < _settings_client.gui.semaphore_build_before ? SIG_SEMAPHORE : SIG_ELECTRIC);
01170
01171 SpriteID sprite;
01172 if (variant == SIG_ELECTRIC) {
01173
01174 sprite = SPR_ORIGINAL_SIGNALS_BASE + ((position << 1) + IsTunnelBridgeWithSignGreen(ti->tile));
01175 } else {
01176
01177 sprite = SPR_SIGNALS_BASE + ((SIGTYPE_NORMAL - 1) * 16 + variant * 64 + (position << 1) + IsTunnelBridgeWithSignGreen(ti->tile));
01178 }
01179
01180 AddSortableSpriteToDraw(sprite, PAL_NONE, x, y, 1, 1, TILE_HEIGHT, z, false, 0, 0, BB_Z_SEPARATOR);
01181 }
01182
01183
01184 static void DrawBrigeSignalOnMiddelPart(const TileInfo *ti, TileIndex bridge_start_tile, uint z)
01185 {
01186
01187 uint bridge_signal_position = 0;
01188 int m2_position = 0;
01189
01190 uint bridge_section = GetTunnelBridgeLength(ti->tile, bridge_start_tile) + 1;
01191
01192 while (bridge_signal_position <= bridge_section) {
01193 bridge_signal_position += 4;
01194 if (bridge_signal_position == bridge_section) {
01195 bool side = (_settings_game.vehicle.road_side != 0) && _settings_game.construction.signal_side;
01196
01197 static const Point SignalPositions[2][4] = {
01198 {
01199 {13, 3}, { 2, 13}, { 3, 4}, {13, 14}
01200 }, {
01201 {10, 13}, { 4, 3}, {13, 2}, { 3, 3}
01202 }
01203 };
01204 uint position;
01205
01206 switch (GetTunnelBridgeDirection(bridge_start_tile)) {
01207 default: NOT_REACHED();
01208 case DIAGDIR_NE: position = 0; z += 8; break;
01209 case DIAGDIR_SE: position = 2; z += 8; break;
01210 case DIAGDIR_SW: position = 1; break;
01211 case DIAGDIR_NW: position = 3; break;
01212 }
01213
01214
01215 uint x = ti->x + SignalPositions[side][position].x;
01216 uint y = ti->y + SignalPositions[side][position].y;
01217
01218 SignalVariant variant = (_cur_year < _settings_client.gui.semaphore_build_before ? SIG_SEMAPHORE : SIG_ELECTRIC);
01219
01220 SpriteID sprite;
01221 if (variant == SIG_ELECTRIC) {
01222
01223 sprite = SPR_ORIGINAL_SIGNALS_BASE + ((position << 1) + !HasBit(_m[bridge_start_tile].m2, m2_position));
01224 } else {
01225
01226 sprite = SPR_SIGNALS_BASE + ((SIGTYPE_NORMAL - 1) * 16 + variant * 64 + (position << 1) + !HasBit(_m[bridge_start_tile].m2, m2_position));
01227 }
01228
01229 AddSortableSpriteToDraw(sprite, PAL_NONE, x, y, 1, 1, TILE_HEIGHT, z, false, 0, 0, BB_Z_SEPARATOR);
01230 }
01231 m2_position++;
01232 }
01233 }
01234
01248 static void DrawTile_TunnelBridge(TileInfo *ti)
01249 {
01250 TransportType transport_type = GetTunnelBridgeTransportType(ti->tile);
01251 DiagDirection tunnelbridge_direction = GetTunnelBridgeDirection(ti->tile);
01252
01253 if (IsTunnel(ti->tile)) {
01254
01255
01256
01257
01258
01259
01260
01261
01262
01263 static const int _tunnel_BB[4][12] = {
01264
01265
01266 { 1, 0, -15, -14, 0, 15, 16, 1, 0, 1, 16, 15 },
01267 { 0, 1, -14, -15, 15, 0, 1, 16, 1, 0, 15, 16 },
01268 { 1, 0, -15, -14, 0, 15, 16, 1, 0, 1, 16, 15 },
01269 { 0, 1, -14, -15, 15, 0, 1, 16, 1, 0, 15, 16 },
01270 };
01271 const int *BB_data = _tunnel_BB[tunnelbridge_direction];
01272
01273 bool catenary = false;
01274
01275 SpriteID image;
01276 if (transport_type == TRANSPORT_RAIL) {
01277 image = GetRailTypeInfo(GetRailType(ti->tile))->base_sprites.tunnel;
01278 } else {
01279 image = SPR_TUNNEL_ENTRY_REAR_ROAD;
01280 }
01281
01282 if (HasTunnelBridgeSnowOrDesert(ti->tile)) image += 32;
01283
01284 image += tunnelbridge_direction * 2;
01285 DrawGroundSprite(image, PAL_NONE);
01286
01287
01288 if (_game_mode != GM_MENU && _settings_client.gui.show_track_reservation && (transport_type == TRANSPORT_RAIL && HasTunnelBridgeReservation(ti->tile))) {
01289 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(ti->tile));
01290 DrawGroundSprite(DiagDirToAxis(tunnelbridge_direction) == AXIS_X ? rti->base_sprites.single_x : rti->base_sprites.single_y, PALETTE_CRASH);
01291 }
01292
01293 if (transport_type == TRANSPORT_ROAD) {
01294 RoadTypes rts = GetRoadTypes(ti->tile);
01295
01296 if (HasBit(rts, ROADTYPE_TRAM)) {
01297 static const SpriteID tunnel_sprites[2][4] = { { 28, 78, 79, 27 }, { 5, 76, 77, 4 } };
01298
01299 DrawGroundSprite(SPR_TRAMWAY_BASE + tunnel_sprites[rts - ROADTYPES_TRAM][tunnelbridge_direction], PAL_NONE);
01300
01301
01302 if (!IsInvisibilitySet(TO_CATENARY)) {
01303 catenary = true;
01304 StartSpriteCombine();
01305 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);
01306 }
01307 }
01308 } else {
01309 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(ti->tile));
01310 if (rti->UsesOverlay()) {
01311 SpriteID surface = GetCustomRailSprite(rti, ti->tile, RTSG_TUNNEL);
01312 if (surface != 0) DrawGroundSprite(surface + tunnelbridge_direction, PAL_NONE);
01313 }
01314
01315 if (HasCatenaryDrawn(GetRailType(ti->tile))) {
01316
01317 DrawCatenary(ti);
01318
01319 catenary = true;
01320 StartSpriteCombine();
01321
01322 DrawCatenaryOnTunnel(ti);
01323 }
01324 }
01325
01326 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);
01327
01328 if (catenary) EndSpriteCombine();
01329
01330
01331 AddSortableSpriteToDraw(SPR_EMPTY_BOUNDING_BOX, PAL_NONE, ti->x, ti->y, BB_data[6], BB_data[7], TILE_HEIGHT, ti->z);
01332 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);
01333
01334
01335 if (IsTunnelBridgeEntrance(ti->tile)) DrawTunnelBridgeRampSignal(ti);
01336
01337 DrawBridgeMiddle(ti);
01338 } else {
01339 const PalSpriteID *psid;
01340 int base_offset;
01341 bool ice = HasTunnelBridgeSnowOrDesert(ti->tile);
01342
01343 if (transport_type == TRANSPORT_RAIL) {
01344 base_offset = GetRailTypeInfo(GetRailType(ti->tile))->bridge_offset;
01345 assert(base_offset != 8);
01346 } else {
01347 base_offset = 8;
01348 }
01349
01350
01351 assert( (base_offset & 0x07) == 0x00);
01352
01353 DrawFoundation(ti, GetBridgeFoundation(ti->tileh, DiagDirToAxis(tunnelbridge_direction)));
01354
01355
01356 base_offset += (6 - tunnelbridge_direction) % 4;
01357
01358 if (ti->tileh == SLOPE_FLAT) base_offset += 4;
01359
01360
01361 if (transport_type != TRANSPORT_WATER) {
01362 psid = &GetBridgeSpriteTable(GetBridgeType(ti->tile), BRIDGE_PIECE_HEAD)[base_offset];
01363 } else {
01364 psid = _aqueduct_sprites + base_offset;
01365 }
01366
01367 if (!ice) {
01368 TileIndex next = ti->tile + TileOffsByDiagDir(tunnelbridge_direction);
01369 if (ti->tileh != SLOPE_FLAT && ti->z == 0 && HasTileWaterClass(next) && GetWaterClass(next) == WATER_CLASS_SEA) {
01370 DrawShoreTile(ti->tileh);
01371 } else {
01372 DrawClearLandTile(ti, 3);
01373 }
01374 } else {
01375 DrawGroundSprite(SPR_FLAT_SNOW_DESERT_TILE + SlopeToSpriteOffset(ti->tileh), PAL_NONE);
01376 }
01377
01378
01379
01380
01381 if (transport_type == TRANSPORT_ROAD || transport_type == TRANSPORT_RAIL) StartSpriteCombine();
01382
01383
01384
01385
01386
01387 AddSortableSpriteToDraw(psid->sprite, psid->pal, ti->x, ti->y, 16, 16, ti->tileh == SLOPE_FLAT ? 0 : 8, ti->z);
01388
01389 if (transport_type == TRANSPORT_ROAD) {
01390 RoadTypes rts = GetRoadTypes(ti->tile);
01391
01392 if (HasBit(rts, ROADTYPE_TRAM)) {
01393 uint offset = tunnelbridge_direction;
01394 uint z = ti->z;
01395 if (ti->tileh != SLOPE_FLAT) {
01396 offset = (offset + 1) & 1;
01397 z += TILE_HEIGHT;
01398 } else {
01399 offset += 2;
01400 }
01401
01402 DrawBridgeTramBits(ti->x, ti->y, z, offset, HasBit(rts, ROADTYPE_ROAD), true);
01403 }
01404 EndSpriteCombine();
01405 } else if (transport_type == TRANSPORT_RAIL) {
01406 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(ti->tile));
01407 if (rti->UsesOverlay()) {
01408 SpriteID surface = GetCustomRailSprite(rti, ti->tile, RTSG_BRIDGE);
01409 if (surface != 0) {
01410 if (HasBridgeFlatRamp(ti->tileh, DiagDirToAxis(tunnelbridge_direction))) {
01411 AddSortableSpriteToDraw(surface + ((DiagDirToAxis(tunnelbridge_direction) == AXIS_X) ? RTBO_X : RTBO_Y), PAL_NONE, ti->x, ti->y, 16, 16, 0, ti->z + 8);
01412 } else {
01413 AddSortableSpriteToDraw(surface + RTBO_SLOPE + tunnelbridge_direction, PAL_NONE, ti->x, ti->y, 16, 16, 8, ti->z);
01414 }
01415 }
01416
01417
01418
01419 } else if (_game_mode != GM_MENU &&_settings_client.gui.show_track_reservation && HasTunnelBridgeReservation(ti->tile)) {
01420 if (HasBridgeFlatRamp(ti->tileh, DiagDirToAxis(tunnelbridge_direction))) {
01421 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);
01422 } else {
01423 AddSortableSpriteToDraw(rti->base_sprites.single_sloped + tunnelbridge_direction, PALETTE_CRASH, ti->x, ti->y, 16, 16, 8, ti->z);
01424 }
01425 }
01426 EndSpriteCombine();
01427 if (HasCatenaryDrawn(GetRailType(ti->tile))) {
01428 DrawCatenary(ti);
01429 }
01430 }
01431
01432 if (HasWormholeSignals(ti->tile)) DrawTunnelBridgeRampSignal(ti);
01433
01434 DrawBridgeMiddle(ti);
01435 }
01436 }
01437
01456 static BridgePieces CalcBridgePiece(uint north, uint south)
01457 {
01458 if (north == 1) {
01459 return BRIDGE_PIECE_NORTH;
01460 } else if (south == 1) {
01461 return BRIDGE_PIECE_SOUTH;
01462 } else if (north < south) {
01463 return north & 1 ? BRIDGE_PIECE_INNER_SOUTH : BRIDGE_PIECE_INNER_NORTH;
01464 } else if (north > south) {
01465 return south & 1 ? BRIDGE_PIECE_INNER_NORTH : BRIDGE_PIECE_INNER_SOUTH;
01466 } else {
01467 return north & 1 ? BRIDGE_PIECE_MIDDLE_EVEN : BRIDGE_PIECE_MIDDLE_ODD;
01468 }
01469 }
01470
01475 void DrawBridgeMiddle(const TileInfo *ti)
01476 {
01477
01478
01479
01480
01481
01482
01483
01484
01485
01486
01487
01488
01489
01490
01491
01492
01493 if (!IsBridgeAbove(ti->tile)) return;
01494
01495 TileIndex rampnorth = GetNorthernBridgeEnd(ti->tile);
01496 TileIndex rampsouth = GetSouthernBridgeEnd(ti->tile);
01497 TransportType transport_type = GetTunnelBridgeTransportType(rampsouth);
01498
01499 Axis axis = GetBridgeAxis(ti->tile);
01500 BridgePieces piece = CalcBridgePiece(
01501 GetTunnelBridgeLength(ti->tile, rampnorth) + 1,
01502 GetTunnelBridgeLength(ti->tile, rampsouth) + 1
01503 );
01504
01505 const PalSpriteID *psid;
01506 bool drawfarpillar;
01507 if (transport_type != TRANSPORT_WATER) {
01508 BridgeType type = GetBridgeType(rampsouth);
01509 drawfarpillar = !HasBit(GetBridgeSpec(type)->flags, 0);
01510
01511 uint base_offset;
01512 if (transport_type == TRANSPORT_RAIL) {
01513 base_offset = GetRailTypeInfo(GetRailType(rampsouth))->bridge_offset;
01514 } else {
01515 base_offset = 8;
01516 }
01517
01518 psid = base_offset + GetBridgeSpriteTable(type, piece);
01519 } else {
01520 drawfarpillar = true;
01521 psid = _aqueduct_sprites;
01522 }
01523
01524 if (axis != AXIS_X) psid += 4;
01525
01526 int x = ti->x;
01527 int y = ti->y;
01528 uint bridge_z = GetBridgeHeight(rampsouth);
01529 uint z = bridge_z - BRIDGE_Z_START;
01530
01531
01532 AddSortableSpriteToDraw(SPR_EMPTY_BOUNDING_BOX, PAL_NONE, x, y, 16, 16, 1, bridge_z - TILE_HEIGHT + BB_Z_SEPARATOR);
01533
01534
01535 if (transport_type == TRANSPORT_ROAD || transport_type == TRANSPORT_RAIL) StartSpriteCombine();
01536
01537
01538 if (!IsInvisibilitySet(TO_BRIDGES)) {
01539 if (axis == AXIS_X) {
01540 AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 16, 1, 0x28, z, IsTransparencySet(TO_BRIDGES), 0, 0, BRIDGE_Z_START);
01541 } else {
01542 AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 1, 16, 0x28, z, IsTransparencySet(TO_BRIDGES), 0, 0, BRIDGE_Z_START);
01543 }
01544 }
01545
01546 psid++;
01547
01548 if (transport_type == TRANSPORT_ROAD) {
01549 RoadTypes rts = GetRoadTypes(rampsouth);
01550
01551 if (HasBit(rts, ROADTYPE_TRAM)) {
01552
01553 DrawBridgeTramBits(x, y, bridge_z, axis ^ 1, HasBit(rts, ROADTYPE_ROAD), false);
01554 } else {
01555 EndSpriteCombine();
01556 StartSpriteCombine();
01557 }
01558 } else if (transport_type == TRANSPORT_RAIL) {
01559 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(rampsouth));
01560 if (rti->UsesOverlay()) {
01561 SpriteID surface = GetCustomRailSprite(rti, rampsouth, RTSG_BRIDGE, TCX_ON_BRIDGE);
01562 if (surface != 0) {
01563 AddSortableSpriteToDraw(surface + axis, PAL_NONE, x, y, 16, 16, 0, bridge_z, IsTransparencySet(TO_BRIDGES));
01564 }
01565 }
01566 EndSpriteCombine();
01567
01568 if (HasCatenaryDrawn(GetRailType(rampsouth))) {
01569 DrawCatenaryOnBridge(ti);
01570 }
01571
01572 if (HasWormholeSignals(rampsouth)) {
01573 IsTunnelBridgeExit(rampsouth) ? DrawBrigeSignalOnMiddelPart(ti, rampnorth, z): DrawBrigeSignalOnMiddelPart(ti, rampsouth, z);
01574 }
01575 }
01576
01577
01578 if (!IsInvisibilitySet(TO_BRIDGES)) {
01579 if (axis == AXIS_X) {
01580 y += 12;
01581 if (psid->sprite & SPRITE_MASK) AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 16, 4, 0x28, z, IsTransparencySet(TO_BRIDGES), 0, 3, BRIDGE_Z_START);
01582 } else {
01583 x += 12;
01584 if (psid->sprite & SPRITE_MASK) AddSortableSpriteToDraw(psid->sprite, psid->pal, x, y, 4, 16, 0x28, z, IsTransparencySet(TO_BRIDGES), 3, 0, BRIDGE_Z_START);
01585 }
01586 }
01587
01588
01589 if (transport_type == TRANSPORT_ROAD) EndSpriteCombine();
01590
01591
01592 if (IsInvisibilitySet(TO_BRIDGES)) return;
01593
01594 psid++;
01595 if (ti->z + 5 == z) {
01596
01597 if (psid->sprite != 0) {
01598 SpriteID image = psid->sprite;
01599 SpriteID pal = psid->pal;
01600 if (IsTransparencySet(TO_BRIDGES)) {
01601 SetBit(image, PALETTE_MODIFIER_TRANSPARENT);
01602 pal = PALETTE_TO_TRANSPARENT;
01603 }
01604
01605 DrawGroundSpriteAt(image, pal, x - ti->x, y - ti->y, z - ti->z);
01606 }
01607 } else if (_settings_client.gui.bridge_pillars) {
01608
01609 DrawBridgePillars(psid, ti, axis, drawfarpillar, x, y, z);
01610 }
01611 }
01612
01613
01614 static uint GetSlopeZ_TunnelBridge(TileIndex tile, uint x, uint y)
01615 {
01616 uint z;
01617 Slope tileh = GetTileSlope(tile, &z);
01618
01619 x &= 0xF;
01620 y &= 0xF;
01621
01622 if (IsTunnel(tile)) {
01623 uint pos = (DiagDirToAxis(GetTunnelBridgeDirection(tile)) == AXIS_X ? y : x);
01624
01625
01626 if (5 <= pos && pos <= 10) return z;
01627 } else {
01628 DiagDirection dir = GetTunnelBridgeDirection(tile);
01629 uint pos = (DiagDirToAxis(dir) == AXIS_X ? y : x);
01630
01631 z += ApplyFoundationToSlope(GetBridgeFoundation(tileh, DiagDirToAxis(dir)), &tileh);
01632
01633
01634 if (5 <= pos && pos <= 10) {
01635 uint delta;
01636
01637 if (tileh != SLOPE_FLAT) return z + TILE_HEIGHT;
01638
01639 switch (dir) {
01640 default: NOT_REACHED();
01641 case DIAGDIR_NE: delta = (TILE_SIZE - 1 - x) / 2; break;
01642 case DIAGDIR_SE: delta = y / 2; break;
01643 case DIAGDIR_SW: delta = x / 2; break;
01644 case DIAGDIR_NW: delta = (TILE_SIZE - 1 - y) / 2; break;
01645 }
01646 return z + 1 + delta;
01647 }
01648 }
01649
01650 return z + GetPartialZ(x, y, tileh);
01651 }
01652
01653 static Foundation GetFoundation_TunnelBridge(TileIndex tile, Slope tileh)
01654 {
01655 return IsTunnel(tile) ? FOUNDATION_NONE : GetBridgeFoundation(tileh, DiagDirToAxis(GetTunnelBridgeDirection(tile)));
01656 }
01657
01658 static void GetTileDesc_TunnelBridge(TileIndex tile, TileDesc *td)
01659 {
01660 TransportType tt = GetTunnelBridgeTransportType(tile);
01661
01662 if (IsTunnel(tile)) {
01663 td->str = (tt == TRANSPORT_RAIL) ? HasWormholeSignals(tile) ? STR_LAI_TUNNEL_DESCRIPTION_RAILROAD_SIGNAL : STR_LAI_TUNNEL_DESCRIPTION_RAILROAD : STR_LAI_TUNNEL_DESCRIPTION_ROAD;
01664 } else {
01665 td->str = (tt == TRANSPORT_WATER) ? STR_LAI_BRIDGE_DESCRIPTION_AQUEDUCT : HasWormholeSignals(tile) ? STR_LAI_BRIDGE_DESCRIPTION_RAILROAD_SIGNAL : GetBridgeSpec(GetBridgeType(tile))->transport_name[tt];
01666 }
01667 td->owner[0] = GetTileOwner(tile);
01668
01669 Owner road_owner = INVALID_OWNER;
01670 Owner tram_owner = INVALID_OWNER;
01671 RoadTypes rts = GetRoadTypes(tile);
01672 if (HasBit(rts, ROADTYPE_ROAD)) road_owner = GetRoadOwner(tile, ROADTYPE_ROAD);
01673 if (HasBit(rts, ROADTYPE_TRAM)) tram_owner = GetRoadOwner(tile, ROADTYPE_TRAM);
01674
01675
01676 if ((tram_owner != INVALID_OWNER && tram_owner != td->owner[0]) ||
01677 (road_owner != INVALID_OWNER && road_owner != td->owner[0])) {
01678 uint i = 1;
01679 if (road_owner != INVALID_OWNER) {
01680 td->owner_type[i] = STR_LAND_AREA_INFORMATION_ROAD_OWNER;
01681 td->owner[i] = road_owner;
01682 i++;
01683 }
01684 if (tram_owner != INVALID_OWNER) {
01685 td->owner_type[i] = STR_LAND_AREA_INFORMATION_TRAM_OWNER;
01686 td->owner[i] = tram_owner;
01687 }
01688 }
01689
01690 if (tt == TRANSPORT_RAIL) {
01691 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(tile));
01692 td->rail_speed = rti->max_speed;
01693
01694 if (!IsTunnel(tile)) {
01695 uint16 spd = GetBridgeSpec(GetBridgeType(tile))->speed;
01696 if (td->rail_speed == 0 || spd < td->rail_speed) {
01697 td->rail_speed = spd;
01698 }
01699 }
01700 }
01701 }
01702
01703
01704 static void TileLoop_TunnelBridge(TileIndex tile)
01705 {
01706 bool snow_or_desert = HasTunnelBridgeSnowOrDesert(tile);
01707 switch (_settings_game.game_creation.landscape) {
01708 case LT_ARCTIC: {
01709
01710
01711
01712 uint z = IsBridge(tile) ? GetTileMaxZ(tile) : GetTileZ(tile);
01713 if (snow_or_desert != (z > GetSnowLine())) {
01714 SetTunnelBridgeSnowOrDesert(tile, !snow_or_desert);
01715 MarkTileDirtyByTile(tile);
01716 }
01717 break;
01718 }
01719
01720 case LT_TROPIC:
01721 if (GetTropicZone(tile) == TROPICZONE_DESERT && !snow_or_desert) {
01722 SetTunnelBridgeSnowOrDesert(tile, true);
01723 MarkTileDirtyByTile(tile);
01724 }
01725 break;
01726
01727 default:
01728 break;
01729 }
01730 }
01731
01732 static bool ClickTile_TunnelBridge(TileIndex tile)
01733 {
01734
01735 if (IsTunnelTile(tile)) {
01736 int count = 0;
01737 const Train *t;
01738 TileIndex tile_end = GetOtherTunnelBridgeEnd(tile);
01739 FOR_ALL_TRAINS(t) {
01740 if (!t->IsFrontEngine()) continue;
01741 if (tile == t->tile || tile_end == t->tile) {
01742 ShowVehicleViewWindow(t);
01743 count++;
01744 }
01745 if (count > 19) break;
01746 }
01747 if (count > 0) return true;
01748 }
01749 return false;
01750 }
01751
01752 static TrackStatus GetTileTrackStatus_TunnelBridge(TileIndex tile, TransportType mode, uint sub_mode, DiagDirection side)
01753 {
01754 TransportType transport_type = GetTunnelBridgeTransportType(tile);
01755 if (transport_type != mode || (transport_type == TRANSPORT_ROAD && (GetRoadTypes(tile) & sub_mode) == 0)) return 0;
01756
01757 DiagDirection dir = GetTunnelBridgeDirection(tile);
01758 if (side != INVALID_DIAGDIR && side != ReverseDiagDir(dir)) return 0;
01759 return CombineTrackStatus(TrackBitsToTrackdirBits(DiagDirToDiagTrackBits(dir)), TRACKDIR_BIT_NONE);
01760 }
01761
01762 static void ChangeTileOwner_TunnelBridge(TileIndex tile, Owner old_owner, Owner new_owner)
01763 {
01764 TileIndex other_end = GetOtherTunnelBridgeEnd(tile);
01765
01766
01767 uint num_pieces = tile < other_end ? (GetTunnelBridgeLength(tile, other_end) + 2) * TUNNELBRIDGE_TRACKBIT_FACTOR : 0;
01768
01769 for (RoadType rt = ROADTYPE_ROAD; rt < ROADTYPE_END; rt++) {
01770
01771 if (GetRoadOwner(tile, rt) == old_owner) {
01772 if (HasBit(GetRoadTypes(tile), rt)) {
01773
01774
01775 Company::Get(old_owner)->road_infrastructure[rt] -= num_pieces * 2;
01776 if (new_owner != INVALID_OWNER) Company::Get(new_owner)->road_infrastructure[rt] += num_pieces * 2;
01777 }
01778
01779 SetRoadOwner(tile, rt, new_owner == INVALID_OWNER ? OWNER_NONE : new_owner);
01780 }
01781 }
01782
01783 if (!IsTileOwner(tile, old_owner)) return;
01784
01785
01786
01787 TransportType tt = GetTunnelBridgeTransportType(tile);
01788 Company *old = Company::Get(old_owner);
01789 if (tt == TRANSPORT_RAIL) {
01790 old->rail_infrastructure[GetRailType(tile)] -= num_pieces;
01791 if (new_owner != INVALID_OWNER) Company::Get(new_owner)->rail_infrastructure[GetRailType(tile)] += num_pieces;
01792 } else if (tt == TRANSPORT_WATER) {
01793 old->water_infrastructure -= num_pieces;
01794 if (new_owner != INVALID_OWNER) Company::Get(new_owner)->water_infrastructure += num_pieces;
01795 }
01796
01797 if (new_owner != INVALID_OWNER) {
01798 SetTileOwner(tile, new_owner);
01799 } else {
01800 if (tt == TRANSPORT_RAIL) {
01801
01802
01803 CommandCost ret = DoCommand(tile, 0, 0, DC_EXEC | DC_BANKRUPT, CMD_LANDSCAPE_CLEAR);
01804 assert(ret.Succeeded());
01805 } else {
01806
01807 SetTileOwner(tile, OWNER_NONE);
01808 }
01809 }
01810 }
01811
01817 static const byte TUNNEL_SOUND_FRAME = 1;
01818
01827 extern const byte _tunnel_visibility_frame[DIAGDIR_END] = {12, 8, 8, 12};
01828
01829 static VehicleEnterTileStatus VehicleEnter_TunnelBridge(Vehicle *v, TileIndex tile, int x, int y)
01830 {
01831 int z = GetSlopeZ(x, y) - v->z_pos;
01832
01833 if (abs(z) > 2) return VETSB_CANNOT_ENTER;
01834
01835 const DiagDirection dir = GetTunnelBridgeDirection(tile);
01836
01837 const DiagDirection vdir = DirToDiagDir(v->direction);
01838
01839 byte pos = (DiagDirToAxis(vdir) == AXIS_X ? x : y) & TILE_UNIT_MASK;
01840
01841 byte frame = (vdir == DIAGDIR_NE || vdir == DIAGDIR_NW) ? TILE_SIZE - 1 - pos : pos;
01842
01843 if (IsTunnel(tile)) {
01844 if (v->type == VEH_TRAIN) {
01845 Train *t = Train::From(v);
01846
01847 if (t->track != TRACK_BIT_WORMHOLE && dir == vdir) {
01848 if (t->IsFrontEngine() && frame == TUNNEL_SOUND_FRAME) {
01849 if (!PlayVehicleSound(t, VSE_TUNNEL) && RailVehInfo(t->engine_type)->engclass == 0) {
01850 SndPlayVehicleFx(SND_05_TRAIN_THROUGH_TUNNEL, v);
01851 }
01852 return VETSB_CONTINUE;
01853 }
01854 if (frame == _tunnel_visibility_frame[dir]) {
01855 t->tile = tile;
01856 t->track = TRACK_BIT_WORMHOLE;
01857 t->vehstatus |= VS_HIDDEN;
01858 return VETSB_ENTERED_WORMHOLE;
01859 }
01860 }
01861
01862 if (dir == ReverseDiagDir(vdir) && frame == TILE_SIZE - _tunnel_visibility_frame[dir] && z == 0) {
01863
01864 t->tile = tile;
01865 t->track = DiagDirToDiagTrackBits(vdir);
01866 assert(t->track);
01867 t->vehstatus &= ~VS_HIDDEN;
01868 return VETSB_ENTERED_WORMHOLE;
01869 }
01870 } else if (v->type == VEH_ROAD) {
01871 RoadVehicle *rv = RoadVehicle::From(v);
01872
01873
01874 if (rv->state != RVSB_WORMHOLE && dir == vdir) {
01875 if (frame == _tunnel_visibility_frame[dir]) {
01876
01877 assert(frame == rv->frame + 1);
01878 rv->tile = tile;
01879 rv->state = RVSB_WORMHOLE;
01880 rv->vehstatus |= VS_HIDDEN;
01881 return VETSB_ENTERED_WORMHOLE;
01882 } else {
01883 return VETSB_CONTINUE;
01884 }
01885 }
01886
01887
01888 if (dir == ReverseDiagDir(vdir) && frame == TILE_SIZE - _tunnel_visibility_frame[dir] && z == 0) {
01889 rv->tile = tile;
01890 rv->state = DiagDirToDiagTrackdir(vdir);
01891 rv->frame = frame;
01892 rv->vehstatus &= ~VS_HIDDEN;
01893 return VETSB_ENTERED_WORMHOLE;
01894 }
01895 }
01896 } else {
01897 if (v->type != VEH_SHIP) {
01898
01899 uint16 spd = GetBridgeSpec(GetBridgeType(tile))->speed;
01900
01901 if (v->type == VEH_ROAD) spd *= 2;
01902 Vehicle *first = v->First();
01903 first->cur_speed = min(first->cur_speed, spd);
01904 }
01905
01906 if (vdir == dir) {
01907
01908 if (frame != TILE_SIZE - 1) return VETSB_CONTINUE;
01909 switch (v->type) {
01910 case VEH_TRAIN: {
01911 Train *t = Train::From(v);
01912 t->track = TRACK_BIT_WORMHOLE;
01913 ClrBit(t->gv_flags, GVF_GOINGUP_BIT);
01914 ClrBit(t->gv_flags, GVF_GOINGDOWN_BIT);
01915 break;
01916 }
01917
01918 case VEH_ROAD: {
01919 RoadVehicle *rv = RoadVehicle::From(v);
01920 rv->state = RVSB_WORMHOLE;
01921
01922 ClrBit(rv->gv_flags, GVF_GOINGUP_BIT);
01923 ClrBit(rv->gv_flags, GVF_GOINGDOWN_BIT);
01924 break;
01925 }
01926
01927 case VEH_SHIP:
01928 Ship::From(v)->state = TRACK_BIT_WORMHOLE;
01929 break;
01930
01931 default: NOT_REACHED();
01932 }
01933 return VETSB_ENTERED_WORMHOLE;
01934 } else if (vdir == ReverseDiagDir(dir)) {
01935 v->tile = tile;
01936 switch (v->type) {
01937 case VEH_TRAIN: {
01938 Train *t = Train::From(v);
01939 if (t->track == TRACK_BIT_WORMHOLE) {
01940 t->track = DiagDirToDiagTrackBits(vdir);
01941 return VETSB_ENTERED_WORMHOLE;
01942 }
01943 break;
01944 }
01945
01946 case VEH_ROAD: {
01947 RoadVehicle *rv = RoadVehicle::From(v);
01948 if (rv->state == RVSB_WORMHOLE) {
01949 rv->state = DiagDirToDiagTrackdir(vdir);
01950 rv->frame = 0;
01951 return VETSB_ENTERED_WORMHOLE;
01952 }
01953 break;
01954 }
01955
01956 case VEH_SHIP: {
01957 Ship *ship = Ship::From(v);
01958 if (ship->state == TRACK_BIT_WORMHOLE) {
01959 ship->state = DiagDirToDiagTrackBits(vdir);
01960 return VETSB_ENTERED_WORMHOLE;
01961 }
01962 break;
01963 }
01964
01965 default: NOT_REACHED();
01966 }
01967 }
01968 }
01969 return VETSB_CONTINUE;
01970 }
01971
01972 static CommandCost TerraformTile_TunnelBridge(TileIndex tile, DoCommandFlag flags, uint z_new, Slope tileh_new)
01973 {
01974 if (_settings_game.construction.build_on_slopes && AutoslopeEnabled() && IsBridge(tile) && GetTunnelBridgeTransportType(tile) != TRANSPORT_WATER) {
01975 DiagDirection direction = GetTunnelBridgeDirection(tile);
01976 Axis axis = DiagDirToAxis(direction);
01977 CommandCost res;
01978 uint z_old;
01979 Slope tileh_old = GetTileSlope(tile, &z_old);
01980
01981
01982 if ((direction == DIAGDIR_NW) || (direction == DIAGDIR_NE)) {
01983 CheckBridgeSlopeSouth(axis, &tileh_old, &z_old);
01984 res = CheckBridgeSlopeSouth(axis, &tileh_new, &z_new);
01985 } else {
01986 CheckBridgeSlopeNorth(axis, &tileh_old, &z_old);
01987 res = CheckBridgeSlopeNorth(axis, &tileh_new, &z_new);
01988 }
01989
01990
01991 if (res.Succeeded() && (z_old == z_new) && (tileh_old == tileh_new)) return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
01992 }
01993
01994 return DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
01995 }
01996
01997 extern const TileTypeProcs _tile_type_tunnelbridge_procs = {
01998 DrawTile_TunnelBridge,
01999 GetSlopeZ_TunnelBridge,
02000 ClearTile_TunnelBridge,
02001 NULL,
02002 GetTileDesc_TunnelBridge,
02003 GetTileTrackStatus_TunnelBridge,
02004 ClickTile_TunnelBridge,
02005 NULL,
02006 TileLoop_TunnelBridge,
02007 ChangeTileOwner_TunnelBridge,
02008 NULL,
02009 VehicleEnter_TunnelBridge,
02010 GetFoundation_TunnelBridge,
02011 TerraformTile_TunnelBridge,
02012 };