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00012 #include "stdafx.h"
00013 #include "cmd_helper.h"
00014 #include "road_internal.h"
00015 #include "viewport_func.h"
00016 #include "command_func.h"
00017 #include "pathfinder/yapf/yapf_cache.h"
00018 #include "depot_base.h"
00019 #include "newgrf.h"
00020 #include "autoslope.h"
00021 #include "tunnelbridge_map.h"
00022 #include "window_func.h"
00023 #include "strings_func.h"
00024 #include "vehicle_func.h"
00025 #include "sound_func.h"
00026 #include "tunnelbridge.h"
00027 #include "cheat_type.h"
00028 #include "effectvehicle_func.h"
00029 #include "effectvehicle_base.h"
00030 #include "elrail_func.h"
00031 #include "roadveh.h"
00032 #include "town.h"
00033 #include "company_base.h"
00034 #include "core/random_func.hpp"
00035 #include "newgrf_railtype.h"
00036 #include "date_func.h"
00037 #include "genworld.h"
00038 #include "trafficlight_func.h"
00039 #include "company_gui.h"
00040
00041 #include "table/strings.h"
00042
00047 bool RoadVehiclesAreBuilt()
00048 {
00049 const RoadVehicle *rv;
00050 FOR_ALL_ROADVEHICLES(rv) return true;
00051
00052 return false;
00053 }
00054
00056 static const RoadBits _invalid_tileh_slopes_road[2][15] = {
00057
00058 {
00059 ROAD_NONE,
00060 ROAD_NE | ROAD_SE,
00061 ROAD_NE | ROAD_NW,
00062
00063 ROAD_NE,
00064 ROAD_NW | ROAD_SW,
00065 ROAD_NONE,
00066
00067 ROAD_NW,
00068 ROAD_NONE,
00069 ROAD_SE | ROAD_SW,
00070
00071 ROAD_SE,
00072 ROAD_NONE,
00073 ROAD_NONE,
00074
00075 ROAD_SW,
00076 ROAD_NONE,
00077 ROAD_NONE
00078 },
00079
00080
00081 {
00082 ROAD_NONE,
00083 ROAD_NONE,
00084 ROAD_NONE,
00085
00086 ROAD_Y,
00087 ROAD_NONE,
00088 ROAD_ALL,
00089
00090 ROAD_X,
00091 ROAD_ALL,
00092 ROAD_NONE,
00093
00094 ROAD_X,
00095 ROAD_ALL,
00096 ROAD_ALL,
00097
00098 ROAD_Y,
00099 ROAD_ALL,
00100 ROAD_ALL
00101 }
00102 };
00103
00104 static Foundation GetRoadFoundation(Slope tileh, RoadBits bits);
00105
00116 CommandCost CheckAllowRemoveRoad(TileIndex tile, RoadBits remove, Owner owner, RoadType rt, DoCommandFlag flags, bool town_check)
00117 {
00118 if (_game_mode == GM_EDITOR || remove == ROAD_NONE) return CommandCost();
00119
00120
00121
00122
00123 if (_current_company == OWNER_WATER ||
00124 (rt == ROADTYPE_ROAD && !Company::IsValidID(_current_company))) return CommandCost();
00125
00126
00127
00128 if (owner != OWNER_TOWN) {
00129 if (owner == OWNER_NONE) return CommandCost();
00130 CommandCost ret = CheckOwnership(owner);
00131 return ret;
00132 }
00133
00134 if (!town_check) return CommandCost();
00135
00136 if (_cheats.magic_bulldozer.value) return CommandCost();
00137
00138 Town *t = ClosestTownFromTile(tile, UINT_MAX);
00139 if (t == NULL) return CommandCost();
00140
00141
00142
00143 CommandCost ret = CheckforTownRating(flags, t, ROAD_REMOVE);
00144 if (ret.Failed()) return ret;
00145
00146
00147 RoadBits n = ROAD_NONE;
00148 RoadBits present = GetAnyRoadBits(tile, rt);
00149 if ((present & ROAD_NE) && (GetAnyRoadBits(TILE_ADDXY(tile, -1, 0), rt) & ROAD_SW)) n |= ROAD_NE;
00150 if ((present & ROAD_SE) && (GetAnyRoadBits(TILE_ADDXY(tile, 0, 1), rt) & ROAD_NW)) n |= ROAD_SE;
00151 if ((present & ROAD_SW) && (GetAnyRoadBits(TILE_ADDXY(tile, 1, 0), rt) & ROAD_NE)) n |= ROAD_SW;
00152 if ((present & ROAD_NW) && (GetAnyRoadBits(TILE_ADDXY(tile, 0, -1), rt) & ROAD_SE)) n |= ROAD_NW;
00153
00154 int rating_decrease = RATING_ROAD_DOWN_STEP_EDGE;
00155
00156
00157 if (KillFirstBit(n) != ROAD_NONE && (n & remove) != ROAD_NONE) {
00158
00159 if (!_settings_game.construction.extra_dynamite) {
00160 SetDParam(0, t->index);
00161 return_cmd_error(STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS);
00162 }
00163 rating_decrease = RATING_ROAD_DOWN_STEP_INNER;
00164 }
00165 ChangeTownRating(t, rating_decrease, RATING_ROAD_MINIMUM, flags);
00166
00167 return CommandCost();
00168 }
00169
00170
00181 static CommandCost RemoveRoad(TileIndex tile, DoCommandFlag flags, RoadBits pieces, RoadType rt, bool crossing_check, bool trafficlights_check, bool town_check = true)
00182 {
00183 RoadTypes rts = GetRoadTypes(tile);
00184
00185 if (!HasBit(rts, rt)) return_cmd_error(rt == ROADTYPE_TRAM ? STR_ERROR_THERE_IS_NO_TRAMWAY : STR_ERROR_THERE_IS_NO_ROAD);
00186
00187 switch (GetTileType(tile)) {
00188 case MP_ROAD: {
00189 CommandCost ret = EnsureNoVehicleOnGround(tile);
00190 if (ret.Failed()) return ret;
00191 break;
00192 }
00193
00194 case MP_STATION: {
00195 if (!IsDriveThroughStopTile(tile)) return CMD_ERROR;
00196
00197 CommandCost ret = EnsureNoVehicleOnGround(tile);
00198 if (ret.Failed()) return ret;
00199 break;
00200 }
00201
00202 case MP_TUNNELBRIDGE: {
00203 if (GetTunnelBridgeTransportType(tile) != TRANSPORT_ROAD) return CMD_ERROR;
00204 CommandCost ret = TunnelBridgeIsFree(tile, GetOtherTunnelBridgeEnd(tile));
00205 if (ret.Failed()) return ret;
00206 break;
00207 }
00208
00209 default:
00210 return CMD_ERROR;
00211 }
00212
00213 CommandCost ret = CheckAllowRemoveRoad(tile, pieces, GetRoadOwner(tile, rt), rt, flags, town_check);
00214 if (ret.Failed()) return ret;
00215
00216 if (!IsTileType(tile, MP_ROAD)) {
00217
00218 if (rts == RoadTypeToRoadTypes(rt)) return DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00219
00220 CommandCost cost(EXPENSES_CONSTRUCTION);
00221 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
00222 TileIndex other_end = GetOtherTunnelBridgeEnd(tile);
00223
00224 uint len = GetTunnelBridgeLength(other_end, tile) + 2;
00225 cost.AddCost(len * _price[PR_CLEAR_ROAD]);
00226 if (flags & DC_EXEC) {
00227 Company *c = Company::GetIfValid(GetRoadOwner(tile, rt));
00228 if (c != NULL) {
00229
00230 c->road_infrastructure[rt] -= len * 2 * TUNNELBRIDGE_TRACKBIT_FACTOR;
00231 DirtyCompanyInfrastructureWindows(c->index);
00232 }
00233
00234 SetRoadTypes(other_end, GetRoadTypes(other_end) & ~RoadTypeToRoadTypes(rt));
00235 SetRoadTypes(tile, GetRoadTypes(tile) & ~RoadTypeToRoadTypes(rt));
00236
00237
00238
00239 RoadType other_rt = (rt == ROADTYPE_ROAD) ? ROADTYPE_TRAM : ROADTYPE_ROAD;
00240 Owner other_owner = GetRoadOwner(tile, other_rt);
00241 if (other_owner != GetTileOwner(tile)) {
00242 SetTileOwner(tile, other_owner);
00243 SetTileOwner(other_end, other_owner);
00244 }
00245
00246
00247 MarkTileDirtyByTile(tile);
00248 MarkTileDirtyByTile(other_end);
00249 if (IsBridge(tile)) {
00250 TileIndexDiff delta = TileOffsByDiagDir(GetTunnelBridgeDirection(tile));
00251
00252 for (TileIndex t = tile + delta; t != other_end; t += delta) MarkTileDirtyByTile(t);
00253 }
00254 }
00255 } else {
00256 assert(IsDriveThroughStopTile(tile));
00257 cost.AddCost(_price[PR_CLEAR_ROAD] * 2);
00258 if (flags & DC_EXEC) {
00259 Company *c = Company::GetIfValid(GetTileOwner(tile));
00260 if (c != NULL) {
00261
00262 c->road_infrastructure[rt] -= 2;
00263 DirtyCompanyInfrastructureWindows(c->index);
00264 }
00265 SetRoadTypes(tile, GetRoadTypes(tile) & ~RoadTypeToRoadTypes(rt));
00266 MarkTileDirtyByTile(tile);
00267 }
00268 }
00269 return cost;
00270 }
00271
00272 switch (GetRoadTileType(tile)) {
00273 case ROAD_TILE_NORMAL: {
00274 const Slope tileh = GetTileSlope(tile, NULL);
00275 RoadBits present = GetRoadBits(tile, rt);
00276 const RoadBits other = GetOtherRoadBits(tile, rt);
00277 const Foundation f = GetRoadFoundation(tileh, present);
00278
00279 if (HasRoadWorks(tile) && _current_company != OWNER_WATER) return_cmd_error(STR_ERROR_ROAD_WORKS_IN_PROGRESS);
00280
00281
00282
00283
00284
00285 if (IsSteepSlope(tileh) || (IsStraightRoad(other) &&
00286 (other & _invalid_tileh_slopes_road[0][tileh & SLOPE_ELEVATED]) != ROAD_NONE) ||
00287 (tileh != SLOPE_FLAT && !_settings_game.construction.build_on_slopes)) {
00288 pieces |= MirrorRoadBits(pieces);
00289 }
00290
00291
00292 pieces &= present;
00293 if (pieces == ROAD_NONE) return_cmd_error(rt == ROADTYPE_TRAM ? STR_ERROR_THERE_IS_NO_TRAMWAY : STR_ERROR_THERE_IS_NO_ROAD);
00294
00295
00296 present ^= pieces;
00297
00298
00299 if (trafficlights_check && HasTrafficLights(tile) && (CountBits(present | GetOtherRoadBits(tile, rt)) < 3)) {
00300 return_cmd_error(STR_ERROR_MUST_REMOVE_TRAFFIC_LIGHTS_FIRST);
00301 }
00302
00303
00304 if (tileh != SLOPE_FLAT && present != ROAD_NONE &&
00305 (present & _invalid_tileh_slopes_road[0][tileh & SLOPE_ELEVATED]) == present) {
00306 return CMD_ERROR;
00307 }
00308
00309 if (flags & DC_EXEC) {
00310 if (HasRoadWorks(tile)) {
00311
00312 assert(_current_company == OWNER_WATER);
00313 EffectVehicle *v;
00314 FOR_ALL_EFFECTVEHICLES(v) {
00315 if (TileVirtXY(v->x_pos, v->y_pos) == tile) {
00316 delete v;
00317 }
00318 }
00319 }
00320
00321 Company *c = Company::GetIfValid(GetRoadOwner(tile, rt));
00322 if (c != NULL) {
00323 c->road_infrastructure[rt] -= CountBits(pieces);
00324 DirtyCompanyInfrastructureWindows(c->index);
00325 }
00326
00327 if (present == ROAD_NONE) {
00328 RoadTypes rts = GetRoadTypes(tile) & ComplementRoadTypes(RoadTypeToRoadTypes(rt));
00329 if (rts == ROADTYPES_NONE) {
00330
00331 DoClearSquare(tile);
00332 } else {
00333 if (rt == ROADTYPE_ROAD && IsRoadOwner(tile, ROADTYPE_ROAD, OWNER_TOWN)) {
00334
00335 const Town *town = CalcClosestTownFromTile(tile);
00336 SetTownIndex(tile, town == NULL ? (TownID)INVALID_TOWN : town->index);
00337 }
00338 SetRoadBits(tile, ROAD_NONE, rt);
00339 SetRoadTypes(tile, rts);
00340 MarkTileDirtyByTile(tile);
00341 }
00342 } else {
00343
00344
00345
00346 if (rt != ROADTYPE_TRAM) SetDisallowedRoadDirections(tile, DRD_NONE);
00347 SetRoadBits(tile, present, rt);
00348 MarkTileDirtyByTile(tile);
00349 }
00350 }
00351
00352 CommandCost cost(EXPENSES_CONSTRUCTION, CountBits(pieces) * _price[PR_CLEAR_ROAD]);
00353
00354 if (f == FOUNDATION_NONE && GetRoadFoundation(tileh, present) != FOUNDATION_NONE) cost.AddCost(_price[PR_BUILD_FOUNDATION]);
00355
00356 return cost;
00357 }
00358
00359 case ROAD_TILE_CROSSING: {
00360 if (pieces & ComplementRoadBits(GetCrossingRoadBits(tile))) {
00361 return CMD_ERROR;
00362 }
00363
00364
00365
00366 if (rt == ROADTYPE_ROAD && HasTileRoadType(tile, ROADTYPE_TRAM) && (flags & DC_EXEC || crossing_check)) return CMD_ERROR;
00367
00368 if (flags & DC_EXEC) {
00369 Company *c = Company::GetIfValid(GetRoadOwner(tile, rt));
00370 if (c != NULL) {
00371
00372 c->road_infrastructure[rt] -= 2;
00373 DirtyCompanyInfrastructureWindows(c->index);
00374 }
00375
00376 Track railtrack = GetCrossingRailTrack(tile);
00377 RoadTypes rts = GetRoadTypes(tile) & ComplementRoadTypes(RoadTypeToRoadTypes(rt));
00378 if (rts == ROADTYPES_NONE) {
00379 TrackBits tracks = GetCrossingRailBits(tile);
00380 bool reserved = HasCrossingReservation(tile);
00381 MakeRailNormal(tile, GetTileOwner(tile), tracks, GetRailType(tile));
00382 if (reserved) SetTrackReservation(tile, tracks);
00383 } else {
00384 SetRoadTypes(tile, rts);
00385
00386 }
00387 MarkTileDirtyByTile(tile);
00388 YapfNotifyTrackLayoutChange(tile, railtrack);
00389 }
00390 return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_CLEAR_ROAD] * 2);
00391 }
00392
00393 default:
00394 case ROAD_TILE_DEPOT:
00395 return CMD_ERROR;
00396 }
00397 }
00398
00399
00411 static CommandCost CheckRoadSlope(Slope tileh, RoadBits *pieces, RoadBits existing, RoadBits other)
00412 {
00413
00414 CLRBITS(*pieces, existing);
00415
00416
00417 if (*pieces == ROAD_NONE) return CMD_ERROR;
00418
00419
00420 if (tileh == SLOPE_FLAT) return CommandCost();
00421
00422
00423 if (IsSteepSlope(tileh)) {
00424
00425 *pieces |= MirrorRoadBits(*pieces);
00426
00427
00428
00429 existing |= other;
00430
00431 if ((existing == ROAD_NONE || existing == *pieces) && IsStraightRoad(*pieces)) {
00432 return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
00433 }
00434 return CMD_ERROR;
00435 }
00436
00437
00438 RoadBits type_bits = existing | *pieces;
00439
00440
00441 if (_settings_game.construction.build_on_slopes && (_invalid_tileh_slopes_road[0][tileh] & (other | type_bits)) == ROAD_NONE) {
00442
00443
00444 if ((other | existing) == ROAD_NONE) return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
00445
00446 return CommandCost();
00447 }
00448
00449
00450 *pieces |= MirrorRoadBits(*pieces);
00451 type_bits = existing | *pieces;
00452
00453
00454 if (IsStraightRoad(type_bits) && (other == type_bits || other == ROAD_NONE) &&
00455 (_invalid_tileh_slopes_road[1][tileh] & (other | type_bits)) == ROAD_NONE) {
00456
00457
00458 if (IsSlopeWithOneCornerRaised(tileh)) {
00459
00460
00461 if (_settings_game.construction.build_on_slopes) {
00462
00463
00464 if ((other | existing) == ROAD_NONE) return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
00465
00466 return CommandCost();
00467 }
00468 } else {
00469 if (HasExactlyOneBit(existing) && GetRoadFoundation(tileh, existing) == FOUNDATION_NONE) return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
00470 return CommandCost();
00471 }
00472 }
00473 return CMD_ERROR;
00474 }
00475
00487 CommandCost CmdBuildRoad(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00488 {
00489 CommandCost cost(EXPENSES_CONSTRUCTION);
00490
00491 RoadBits existing = ROAD_NONE;
00492 RoadBits other_bits = ROAD_NONE;
00493
00494
00495
00496 if ((Company::IsValidID(_current_company) && p2 != 0) || (_current_company == OWNER_TOWN && !Town::IsValidID(p2))) return CMD_ERROR;
00497 if (_current_company != OWNER_TOWN) {
00498 const Town *town = CalcClosestTownFromTile(tile);
00499 p2 = (town != NULL) ? town->index : (TownID)INVALID_TOWN;
00500 }
00501
00502 RoadBits pieces = Extract<RoadBits, 0, 4>(p1);
00503
00504
00505 if (pieces == ROAD_NONE) return CMD_ERROR;
00506
00507 RoadType rt = Extract<RoadType, 4, 2>(p1);
00508 if (!IsValidRoadType(rt) || !ValParamRoadType(rt)) return CMD_ERROR;
00509
00510 DisallowedRoadDirections toggle_drd = Extract<DisallowedRoadDirections, 6, 2>(p1);
00511
00512 Slope tileh = GetTileSlope(tile, NULL);
00513
00514 bool need_to_clear = false;
00515 switch (GetTileType(tile)) {
00516 case MP_ROAD:
00517 switch (GetRoadTileType(tile)) {
00518 case ROAD_TILE_NORMAL: {
00519 if (HasRoadWorks(tile)) return_cmd_error(STR_ERROR_ROAD_WORKS_IN_PROGRESS);
00520
00521 other_bits = GetOtherRoadBits(tile, rt);
00522 if (!HasTileRoadType(tile, rt)) break;
00523
00524 existing = GetRoadBits(tile, rt);
00525 bool crossing = !IsStraightRoad(existing | pieces);
00526 if (rt != ROADTYPE_TRAM && (GetDisallowedRoadDirections(tile) != DRD_NONE || toggle_drd != DRD_NONE) && crossing) {
00527
00528 return_cmd_error(STR_ERROR_ONEWAY_ROADS_CAN_T_HAVE_JUNCTION);
00529 }
00530 if ((existing & pieces) == pieces) {
00531
00532 if (toggle_drd != DRD_NONE && rt != ROADTYPE_TRAM) {
00533 if (crossing) return_cmd_error(STR_ERROR_ONEWAY_ROADS_CAN_T_HAVE_JUNCTION);
00534
00535 Owner owner = GetRoadOwner(tile, ROADTYPE_ROAD);
00536 if (owner != OWNER_NONE) {
00537 CommandCost ret = CheckOwnership(owner, tile);
00538 if (ret.Failed()) return ret;
00539 }
00540
00541 DisallowedRoadDirections dis_existing = GetDisallowedRoadDirections(tile);
00542 DisallowedRoadDirections dis_new = dis_existing ^ toggle_drd;
00543
00544
00545
00546
00547
00548 if (CountBits(dis_existing) <= CountBits(dis_new)) {
00549 CommandCost ret = EnsureNoVehicleOnGround(tile);
00550 if (ret.Failed()) return ret;
00551 }
00552
00553
00554 if ((flags & DC_EXEC) && rt != ROADTYPE_TRAM && IsStraightRoad(existing)) {
00555 SetDisallowedRoadDirections(tile, dis_new);
00556 MarkTileDirtyByTile(tile);
00557 }
00558 return CommandCost();
00559 }
00560 return_cmd_error(STR_ERROR_ALREADY_BUILT);
00561 }
00562 break;
00563 }
00564
00565 case ROAD_TILE_CROSSING:
00566 other_bits = GetCrossingRoadBits(tile);
00567 if (pieces & ComplementRoadBits(other_bits)) goto do_clear;
00568 pieces = other_bits;
00569
00570 if (HasTileRoadType(tile, rt)) return_cmd_error(STR_ERROR_ALREADY_BUILT);
00571 break;
00572
00573 case ROAD_TILE_DEPOT:
00574 if ((GetAnyRoadBits(tile, rt) & pieces) == pieces) return_cmd_error(STR_ERROR_ALREADY_BUILT);
00575 goto do_clear;
00576
00577 default: NOT_REACHED();
00578 }
00579 break;
00580
00581 case MP_RAILWAY: {
00582 if (IsSteepSlope(tileh)) {
00583 return_cmd_error(STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION);
00584 }
00585
00586
00587 if (!HasBit(VALID_LEVEL_CROSSING_SLOPES, tileh)) {
00588 return_cmd_error(STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION);
00589 }
00590
00591 if (GetRailTileType(tile) != RAIL_TILE_NORMAL) goto do_clear;
00592
00593 if (RailNoLevelCrossings(GetRailType(tile))) {
00594 return_cmd_error(STR_ERROR_CROSSING_DISALLOWED);
00595 }
00596
00597 Axis roaddir;
00598 switch (GetTrackBits(tile)) {
00599 case TRACK_BIT_X:
00600 if (pieces & ROAD_X) goto do_clear;
00601 roaddir = AXIS_Y;
00602 break;
00603
00604 case TRACK_BIT_Y:
00605 if (pieces & ROAD_Y) goto do_clear;
00606 roaddir = AXIS_X;
00607 break;
00608
00609 default: goto do_clear;
00610 }
00611
00612 CommandCost ret = EnsureNoVehicleOnGround(tile);
00613 if (ret.Failed()) return ret;
00614
00615 if (flags & DC_EXEC) {
00616 Track railtrack = AxisToTrack(OtherAxis(roaddir));
00617 YapfNotifyTrackLayoutChange(tile, railtrack);
00618
00619 Company *c = Company::GetIfValid(_current_company);
00620 if (c != NULL) {
00621 c->road_infrastructure[rt] += 2;
00622 if (rt != ROADTYPE_ROAD) c->road_infrastructure[ROADTYPE_ROAD] += 2;
00623 DirtyCompanyInfrastructureWindows(_current_company);
00624 }
00625
00626 bool reserved = HasBit(GetRailReservationTrackBits(tile), railtrack);
00627 MakeRoadCrossing(tile, _current_company, _current_company, GetTileOwner(tile), roaddir, GetRailType(tile), RoadTypeToRoadTypes(rt) | ROADTYPES_ROAD, p2);
00628 SetCrossingReservation(tile, reserved);
00629 UpdateLevelCrossing(tile, false);
00630 MarkTileDirtyByTile(tile);
00631 }
00632 return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_ROAD] * (rt == ROADTYPE_ROAD ? 2 : 4));
00633 }
00634
00635 case MP_STATION: {
00636 if ((GetAnyRoadBits(tile, rt) & pieces) == pieces) return_cmd_error(STR_ERROR_ALREADY_BUILT);
00637 if (!IsDriveThroughStopTile(tile)) goto do_clear;
00638
00639 RoadBits curbits = AxisToRoadBits(DiagDirToAxis(GetRoadStopDir(tile)));
00640 if (pieces & ~curbits) goto do_clear;
00641 pieces = curbits;
00642
00643 if (HasTileRoadType(tile, rt)) return_cmd_error(STR_ERROR_ALREADY_BUILT);
00644 break;
00645 }
00646
00647 case MP_TUNNELBRIDGE: {
00648 if (GetTunnelBridgeTransportType(tile) != TRANSPORT_ROAD) goto do_clear;
00649 if (MirrorRoadBits(DiagDirToRoadBits(GetTunnelBridgeDirection(tile))) != pieces) goto do_clear;
00650 if (HasTileRoadType(tile, rt)) return_cmd_error(STR_ERROR_ALREADY_BUILT);
00651
00652 CommandCost ret = TunnelBridgeIsFree(tile, GetOtherTunnelBridgeEnd(tile));
00653 if (ret.Failed()) return ret;
00654 break;
00655 }
00656
00657 default: {
00658 do_clear:;
00659 need_to_clear = true;
00660 break;
00661 }
00662 }
00663
00664 if (need_to_clear) {
00665 CommandCost ret = DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00666 if (ret.Failed()) return ret;
00667 cost.AddCost(ret);
00668 }
00669
00670 if (other_bits != pieces) {
00671
00672 CommandCost ret = CheckRoadSlope(tileh, &pieces, existing, other_bits);
00673
00674
00675 if (ret.Failed() || (ret.GetCost() != 0 && !_settings_game.construction.build_on_slopes)) {
00676 return_cmd_error(STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION);
00677 }
00678 cost.AddCost(ret);
00679 }
00680
00681 if (!need_to_clear) {
00682 if (IsTileType(tile, MP_ROAD)) {
00683
00684 pieces &= ComplementRoadBits(existing);
00685
00686
00687 if (IsNormalRoad(tile)) {
00688 Slope slope = GetTileSlope(tile, NULL);
00689 Foundation found_new = GetRoadFoundation(slope, pieces | existing);
00690
00691
00692 for (RoadType rtest = ROADTYPE_ROAD; rtest < ROADTYPE_END; rtest++) {
00693 if (rtest != rt) {
00694 RoadBits bits = GetRoadBits(tile, rtest);
00695
00696 if (bits != ROAD_NONE && GetRoadFoundation(slope, bits) != found_new) {
00697 return_cmd_error(STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION);
00698 }
00699 }
00700 }
00701 }
00702 }
00703
00704 CommandCost ret = EnsureNoVehicleOnGround(tile);
00705 if (ret.Failed()) return ret;
00706
00707 }
00708 cost.AddCost(CountBits(pieces) * _price[PR_BUILD_ROAD]);
00709
00710 if (!need_to_clear && IsTileType(tile, MP_TUNNELBRIDGE)) {
00711
00712 cost.MultiplyCost(GetTunnelBridgeLength(GetOtherTunnelBridgeEnd(tile), tile) + 2);
00713 }
00714
00715 if (flags & DC_EXEC) {
00716 switch (GetTileType(tile)) {
00717 case MP_ROAD: {
00718 RoadTileType rtt = GetRoadTileType(tile);
00719 if (existing == ROAD_NONE || rtt == ROAD_TILE_CROSSING) {
00720 SetRoadTypes(tile, GetRoadTypes(tile) | RoadTypeToRoadTypes(rt));
00721 SetRoadOwner(tile, rt, _current_company);
00722 if (rt == ROADTYPE_ROAD) SetTownIndex(tile, p2);
00723 }
00724 if (rtt != ROAD_TILE_CROSSING) SetRoadBits(tile, existing | pieces, rt);
00725 break;
00726 }
00727
00728 case MP_TUNNELBRIDGE: {
00729 TileIndex other_end = GetOtherTunnelBridgeEnd(tile);
00730
00731 SetRoadTypes(other_end, GetRoadTypes(other_end) | RoadTypeToRoadTypes(rt));
00732 SetRoadTypes(tile, GetRoadTypes(tile) | RoadTypeToRoadTypes(rt));
00733 SetRoadOwner(other_end, rt, _current_company);
00734 SetRoadOwner(tile, rt, _current_company);
00735
00736
00737 MarkTileDirtyByTile(other_end);
00738 MarkTileDirtyByTile(tile);
00739 if (IsBridge(tile)) {
00740 TileIndexDiff delta = TileOffsByDiagDir(GetTunnelBridgeDirection(tile));
00741
00742 for (TileIndex t = tile + delta; t != other_end; t += delta) MarkTileDirtyByTile(t);
00743 }
00744 break;
00745 }
00746
00747 case MP_STATION:
00748 assert(IsDriveThroughStopTile(tile));
00749 SetRoadTypes(tile, GetRoadTypes(tile) | RoadTypeToRoadTypes(rt));
00750 SetRoadOwner(tile, rt, _current_company);
00751 break;
00752
00753 default:
00754 MakeRoadNormal(tile, pieces, RoadTypeToRoadTypes(rt), p2, _current_company, _current_company);
00755 break;
00756 }
00757
00758
00759 Company *c = Company::GetIfValid(GetRoadOwner(tile, rt));
00760 if (c != NULL) {
00761 uint num_pieces = CountBits(pieces);
00762 if (IsTileType(tile, MP_TUNNELBRIDGE)) num_pieces *= TUNNELBRIDGE_TRACKBIT_FACTOR;
00763 c->road_infrastructure[rt] += num_pieces;
00764 DirtyCompanyInfrastructureWindows(c->index);
00765 }
00766
00767 if (rt != ROADTYPE_TRAM && IsNormalRoadTile(tile)) {
00768 existing |= pieces;
00769 SetDisallowedRoadDirections(tile, IsStraightRoad(existing) ?
00770 GetDisallowedRoadDirections(tile) ^ toggle_drd : DRD_NONE);
00771 }
00772
00773 MarkTileDirtyByTile(tile);
00774 }
00775 return cost;
00776 }
00777
00793 CommandCost CmdBuildLongRoad(TileIndex start_tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00794 {
00795 DisallowedRoadDirections drd = DRD_NORTHBOUND;
00796
00797 if (p1 >= MapSize()) return CMD_ERROR;
00798
00799 TileIndex end_tile = p1;
00800 RoadType rt = Extract<RoadType, 3, 2>(p2);
00801 if (!IsValidRoadType(rt) || !ValParamRoadType(rt)) return CMD_ERROR;
00802
00803 Axis axis = Extract<Axis, 2, 1>(p2);
00804
00805 if (axis == AXIS_X && TileY(start_tile) != TileY(end_tile)) return CMD_ERROR;
00806 if (axis == AXIS_Y && TileX(start_tile) != TileX(end_tile)) return CMD_ERROR;
00807
00808 DiagDirection dir = AxisToDiagDir(axis);
00809
00810
00811 if (start_tile > end_tile || (start_tile == end_tile && HasBit(p2, 0))) {
00812 dir = ReverseDiagDir(dir);
00813 p2 ^= 3;
00814 drd = DRD_SOUTHBOUND;
00815 }
00816
00817
00818
00819
00820 if ((axis == AXIS_Y) == (start_tile == end_tile && HasBit(p2, 0) == HasBit(p2, 1))) drd ^= DRD_BOTH;
00821
00822 if (!HasBit(p2, 5)) drd = DRD_NONE;
00823
00824 CommandCost cost(EXPENSES_CONSTRUCTION);
00825 CommandCost last_error = CMD_ERROR;
00826 TileIndex tile = start_tile;
00827 bool had_bridge = false;
00828 bool had_tunnel = false;
00829 bool had_success = false;
00830
00831 for (;;) {
00832 RoadBits bits = AxisToRoadBits(axis);
00833
00834
00835 if (tile == end_tile && !HasBit(p2, 1)) bits &= DiagDirToRoadBits(ReverseDiagDir(dir));
00836 if (tile == start_tile && HasBit(p2, 0)) bits &= DiagDirToRoadBits(dir);
00837
00838 CommandCost ret = DoCommand(tile, drd << 6 | rt << 4 | bits, 0, flags, CMD_BUILD_ROAD);
00839 if (ret.Failed()) {
00840 last_error = ret;
00841 if (last_error.GetErrorMessage() != STR_ERROR_ALREADY_BUILT) {
00842 if (HasBit(p2, 6)) return last_error;
00843 break;
00844 }
00845 } else {
00846 had_success = true;
00847
00848 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
00849 if (IsBridge(tile)) {
00850 if (!had_bridge || GetTunnelBridgeDirection(tile) == dir) {
00851 cost.AddCost(ret);
00852 }
00853 had_bridge = true;
00854 } else {
00855 if (!had_tunnel || GetTunnelBridgeDirection(tile) == dir) {
00856 cost.AddCost(ret);
00857 }
00858 had_tunnel = true;
00859 }
00860 } else {
00861 cost.AddCost(ret);
00862 }
00863 }
00864
00865 if (tile == end_tile) break;
00866
00867 tile += TileOffsByDiagDir(dir);
00868 }
00869
00870 return had_success ? cost : last_error;
00871 }
00872
00886 CommandCost CmdRemoveLongRoad(TileIndex start_tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00887 {
00888 CommandCost cost(EXPENSES_CONSTRUCTION);
00889
00890 if (p1 >= MapSize()) return CMD_ERROR;
00891
00892 TileIndex end_tile = p1;
00893 RoadType rt = Extract<RoadType, 3, 2>(p2);
00894 if (!IsValidRoadType(rt)) return CMD_ERROR;
00895
00896 Axis axis = Extract<Axis, 2, 1>(p2);
00897
00898 if (axis == AXIS_X && TileY(start_tile) != TileY(end_tile)) return CMD_ERROR;
00899 if (axis == AXIS_Y && TileX(start_tile) != TileX(end_tile)) return CMD_ERROR;
00900
00901
00902 if (start_tile > end_tile || (start_tile == end_tile && HasBit(p2, 0))) {
00903 TileIndex t = start_tile;
00904 start_tile = end_tile;
00905 end_tile = t;
00906 p2 ^= IsInsideMM(p2 & 3, 1, 3) ? 3 : 0;
00907 }
00908
00909 Money money = GetAvailableMoneyForCommand();
00910 TileIndex tile = start_tile;
00911 CommandCost last_error = CMD_ERROR;
00912 bool had_success = false;
00913
00914 for (;;) {
00915 RoadBits bits = AxisToRoadBits(axis);
00916
00917 if (tile == end_tile && !HasBit(p2, 1)) bits &= ROAD_NW | ROAD_NE;
00918 if (tile == start_tile && HasBit(p2, 0)) bits &= ROAD_SE | ROAD_SW;
00919
00920
00921 if (bits != 0) {
00922 CommandCost ret = RemoveRoad(tile, flags & ~DC_EXEC, bits, rt, true, true);
00923 if (ret.Succeeded()) {
00924 if (flags & DC_EXEC) {
00925 money -= ret.GetCost();
00926 if (money < 0) {
00927 _additional_cash_required = DoCommand(start_tile, end_tile, p2, flags & ~DC_EXEC, CMD_REMOVE_LONG_ROAD).GetCost();
00928 return cost;
00929 }
00930 RemoveRoad(tile, flags, bits, rt, true, true, false);
00931 }
00932 cost.AddCost(ret);
00933 had_success = true;
00934 } else {
00935
00936 if (last_error.GetErrorMessage() != STR_ERROR_OWNED_BY) last_error = ret;
00937 }
00938 }
00939
00940 if (tile == end_tile) break;
00941
00942 tile += (axis == AXIS_Y) ? TileDiffXY(0, 1) : TileDiffXY(1, 0);
00943 }
00944
00945 return had_success ? cost : last_error;
00946 }
00947
00961 CommandCost CmdBuildRoadDepot(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00962 {
00963 DiagDirection dir = Extract<DiagDirection, 0, 2>(p1);
00964 RoadType rt = Extract<RoadType, 2, 2>(p1);
00965
00966 if (!IsValidRoadType(rt) || !ValParamRoadType(rt)) return CMD_ERROR;
00967
00968 Slope tileh = GetTileSlope(tile, NULL);
00969 if (tileh != SLOPE_FLAT && (
00970 !_settings_game.construction.build_on_slopes ||
00971 IsSteepSlope(tileh) ||
00972 !CanBuildDepotByTileh(dir, tileh)
00973 )) {
00974 return_cmd_error(STR_ERROR_FLAT_LAND_REQUIRED);
00975 }
00976
00977 CommandCost cost = DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00978 if (cost.Failed()) return cost;
00979
00980 if (MayHaveBridgeAbove(tile) && IsBridgeAbove(tile)) return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00981
00982 if (!Depot::CanAllocateItem()) return CMD_ERROR;
00983
00984 if (flags & DC_EXEC) {
00985 Depot *dep = new Depot(tile);
00986 dep->build_date = _date;
00987
00988
00989 Company::Get(_current_company)->road_infrastructure[rt] += 2;
00990 DirtyCompanyInfrastructureWindows(_current_company);
00991
00992 MakeRoadDepot(tile, _current_company, dep->index, dir, rt);
00993 MarkTileDirtyByTile(tile);
00994 MakeDefaultName(dep);
00995 }
00996 cost.AddCost(_price[PR_BUILD_DEPOT_ROAD]);
00997 return cost;
00998 }
00999
01000 static CommandCost RemoveRoadDepot(TileIndex tile, DoCommandFlag flags)
01001 {
01002 if (_current_company != OWNER_WATER) {
01003 CommandCost ret = CheckTileOwnership(tile);
01004 if (ret.Failed()) return ret;
01005 }
01006
01007 CommandCost ret = EnsureNoVehicleOnGround(tile);
01008 if (ret.Failed()) return ret;
01009
01010 if (flags & DC_EXEC) {
01011 Company *c = Company::GetIfValid(GetTileOwner(tile));
01012 if (c != NULL) {
01013
01014 c->road_infrastructure[FIND_FIRST_BIT(GetRoadTypes(tile))] -= 2;
01015 DirtyCompanyInfrastructureWindows(c->index);
01016 }
01017
01018 delete Depot::GetByTile(tile);
01019 DoClearSquare(tile);
01020 }
01021
01022 return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_CLEAR_DEPOT_ROAD]);
01023 }
01024
01025 static CommandCost ClearTile_Road(TileIndex tile, DoCommandFlag flags)
01026 {
01027 switch (GetRoadTileType(tile)) {
01028 case ROAD_TILE_NORMAL: {
01029 RoadBits b = GetAllRoadBits(tile);
01030
01031
01032 if ((HasExactlyOneBit(b) && GetRoadBits(tile, ROADTYPE_TRAM) == ROAD_NONE) || !(flags & DC_AUTO)) {
01033 CommandCost ret(EXPENSES_CONSTRUCTION);
01034
01035
01036 if (HasTrafficLights(tile)) {
01037 CommandCost tl_ret = CmdRemoveTrafficLights(tile, flags, 0, 0, 0);
01038 if (tl_ret.Failed()) return tl_ret;
01039 ret.AddCost(tl_ret);
01040 }
01041
01042
01043 RoadType rt;
01044 FOR_EACH_SET_ROADTYPE(rt, GetRoadTypes(tile)) {
01045 CommandCost tmp_ret = RemoveRoad(tile, flags, GetRoadBits(tile, rt), rt, true, false);
01046 if (tmp_ret.Failed()) return tmp_ret;
01047 ret.AddCost(tmp_ret);
01048 }
01049 return ret;
01050 }
01051 return_cmd_error(STR_ERROR_MUST_REMOVE_ROAD_FIRST);
01052 }
01053
01054 case ROAD_TILE_CROSSING: {
01055 RoadTypes rts = GetRoadTypes(tile);
01056 CommandCost ret(EXPENSES_CONSTRUCTION);
01057
01058 if (flags & DC_AUTO) return_cmd_error(STR_ERROR_MUST_REMOVE_ROAD_FIRST);
01059
01060
01061
01062 RoadType rt = ROADTYPE_TRAM;
01063 do {
01064 if (HasBit(rts, rt)) {
01065 CommandCost tmp_ret = RemoveRoad(tile, flags, GetCrossingRoadBits(tile), rt, false, false);
01066 if (tmp_ret.Failed()) return tmp_ret;
01067 ret.AddCost(tmp_ret);
01068 }
01069 } while (rt-- != ROADTYPE_ROAD);
01070
01071 if (flags & DC_EXEC) {
01072 DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
01073 }
01074 return ret;
01075 }
01076
01077 default:
01078 case ROAD_TILE_DEPOT:
01079 if (flags & DC_AUTO) {
01080 return_cmd_error(STR_ERROR_BUILDING_MUST_BE_DEMOLISHED);
01081 }
01082 return RemoveRoadDepot(tile, flags);
01083 }
01084 }
01085
01086
01087 struct DrawRoadTileStruct {
01088 uint16 image;
01089 byte subcoord_x;
01090 byte subcoord_y;
01091 };
01092
01093 #include "table/road_land.h"
01094
01102 static Foundation GetRoadFoundation(Slope tileh, RoadBits bits)
01103 {
01104
01105 if (tileh == SLOPE_FLAT || bits == ROAD_NONE) return FOUNDATION_NONE;
01106
01107 if (!IsSteepSlope(tileh)) {
01108
01109 if ((_invalid_tileh_slopes_road[0][tileh] & bits) == ROAD_NONE) return FOUNDATION_LEVELED;
01110
01111
01112 if (!IsSlopeWithOneCornerRaised(tileh) &&
01113 (_invalid_tileh_slopes_road[1][tileh] & bits) == ROAD_NONE)
01114 return FOUNDATION_NONE;
01115 }
01116
01117
01118 return (bits == ROAD_X ? FOUNDATION_INCLINED_X : FOUNDATION_INCLINED_Y);
01119 }
01120
01121 const byte _road_sloped_sprites[14] = {
01122 0, 0, 2, 0,
01123 0, 1, 0, 0,
01124 3, 0, 0, 0,
01125 0, 0
01126 };
01127
01138 static bool AlwaysDrawUnpavedRoads(TileIndex tile, Roadside roadside)
01139 {
01140 return (IsOnSnow(tile) &&
01141 !(_settings_game.game_creation.landscape == LT_TROPIC && HasGrfMiscBit(GMB_DESERT_PAVED_ROADS) &&
01142 roadside != ROADSIDE_BARREN && roadside != ROADSIDE_GRASS && roadside != ROADSIDE_GRASS_ROAD_WORKS));
01143 }
01144
01150 void DrawTramCatenary(const TileInfo *ti, RoadBits tram)
01151 {
01152
01153 if (IsInvisibilitySet(TO_CATENARY)) return;
01154
01155
01156 if (MayHaveBridgeAbove(ti->tile) && IsBridgeAbove(ti->tile) && !IsTransparencySet(TO_CATENARY)) {
01157 uint height = GetBridgeHeight(GetNorthernBridgeEnd(ti->tile));
01158
01159 if (height <= GetTileMaxZ(ti->tile) + TILE_HEIGHT) return;
01160 }
01161
01162 SpriteID front;
01163 SpriteID back;
01164
01165 if (ti->tileh != SLOPE_FLAT) {
01166 back = SPR_TRAMWAY_BACK_WIRES_SLOPED + _road_sloped_sprites[ti->tileh - 1];
01167 front = SPR_TRAMWAY_FRONT_WIRES_SLOPED + _road_sloped_sprites[ti->tileh - 1];
01168 } else {
01169 back = SPR_TRAMWAY_BASE + _road_backpole_sprites_1[tram];
01170 front = SPR_TRAMWAY_BASE + _road_frontwire_sprites_1[tram];
01171 }
01172
01173 AddSortableSpriteToDraw(back, PAL_NONE, ti->x, ti->y, 16, 16, TILE_HEIGHT + BB_HEIGHT_UNDER_BRIDGE, ti->z, IsTransparencySet(TO_CATENARY));
01174 AddSortableSpriteToDraw(front, PAL_NONE, ti->x, ti->y, 16, 16, TILE_HEIGHT + BB_HEIGHT_UNDER_BRIDGE, ti->z, IsTransparencySet(TO_CATENARY));
01175 }
01176
01185 void DrawRoadDetail(SpriteID img, TileInfo *ti, int dx, int dy, int h)
01186 {
01187 int x = ti->x | dx;
01188 int y = ti->y | dy;
01189 int32 z = ti->z;
01190 if (ti->tileh != SLOPE_FLAT) z = GetSlopeZ(x, y);
01191 AddSortableSpriteToDraw(img, PAL_NONE, x, y, 2, 2, h, z);
01192 }
01193
01198 static void DrawRoadBits(TileInfo *ti)
01199 {
01200 RoadBits road = GetRoadBits(ti->tile, ROADTYPE_ROAD);
01201 RoadBits tram = GetRoadBits(ti->tile, ROADTYPE_TRAM);
01202
01203 SpriteID image = 0;
01204 PaletteID pal = PAL_NONE;
01205
01206 if (ti->tileh != SLOPE_FLAT) {
01207 DrawFoundation(ti, GetRoadFoundation(ti->tileh, road | tram));
01208
01209
01210
01211 if (ti->tileh != SLOPE_FLAT) image = _road_sloped_sprites[ti->tileh - 1] + 0x53F;
01212 }
01213
01214 if (image == 0) image = _road_tile_sprites_1[road != ROAD_NONE ? road : tram];
01215
01216 Roadside roadside = GetRoadside(ti->tile);
01217
01218 if (AlwaysDrawUnpavedRoads(ti->tile, roadside)) {
01219 image += 19;
01220 } else {
01221 switch (roadside) {
01222 case ROADSIDE_BARREN: pal = PALETTE_TO_BARE_LAND; break;
01223 case ROADSIDE_GRASS: break;
01224 case ROADSIDE_GRASS_ROAD_WORKS: break;
01225 default: image -= 19; break;
01226 }
01227 }
01228
01229 DrawGroundSprite(image, pal);
01230
01231
01232
01233
01234 if (tram != ROAD_NONE) {
01235 if (ti->tileh != SLOPE_FLAT) {
01236 image = _road_sloped_sprites[ti->tileh - 1] + SPR_TRAMWAY_SLOPED_OFFSET;
01237 } else {
01238 image = _road_tile_sprites_1[tram] - SPR_ROAD_Y;
01239 }
01240 image += (road == ROAD_NONE) ? SPR_TRAMWAY_TRAM : SPR_TRAMWAY_OVERLAY;
01241 DrawGroundSprite(image, pal);
01242 }
01243
01244 if (road != ROAD_NONE) {
01245 DisallowedRoadDirections drd = GetDisallowedRoadDirections(ti->tile);
01246 if (drd != DRD_NONE) {
01247 DrawGroundSpriteAt(SPR_ONEWAY_BASE + drd - 1 + ((road == ROAD_X) ? 0 : 3), PAL_NONE, 8, 8, GetPartialZ(8, 8, ti->tileh));
01248 }
01249 }
01250
01251 if (_settings_game.construction.traffic_lights && HasTrafficLights(ti->tile) && _cur_dpi->zoom <= ZOOM_LVL_DETAIL) DrawTrafficLights(ti);
01252
01253 if (HasRoadWorks(ti->tile)) {
01254
01255 DrawGroundSprite((road | tram) & ROAD_X ? SPR_EXCAVATION_X : SPR_EXCAVATION_Y, PAL_NONE);
01256 return;
01257 }
01258
01259 if (tram != ROAD_NONE) DrawTramCatenary(ti, tram);
01260
01261
01262 if (!HasBit(_display_opt, DO_FULL_DETAIL) || _cur_dpi->zoom > ZOOM_LVL_DETAIL) return;
01263
01264
01265 if (MayHaveBridgeAbove(ti->tile) && IsBridgeAbove(ti->tile) && (roadside == ROADSIDE_TREES || roadside == ROADSIDE_STREET_LIGHTS)) {
01266 uint height = GetBridgeHeight(GetNorthernBridgeEnd(ti->tile));
01267 uint minz = GetTileMaxZ(ti->tile) + 2 * TILE_HEIGHT;
01268
01269 if (roadside == ROADSIDE_TREES) minz += TILE_HEIGHT;
01270
01271 if (height < minz) return;
01272 }
01273
01274
01275 if (HasAtMostOneBit(road)) return;
01276
01277
01278 for (const DrawRoadTileStruct *drts = _road_display_table[roadside][road | tram]; drts->image != 0; drts++) {
01279 DrawRoadDetail(drts->image, ti, drts->subcoord_x, drts->subcoord_y, 0x10);
01280 }
01281 }
01282
01284 static void DrawTile_Road(TileInfo *ti)
01285 {
01286 switch (GetRoadTileType(ti->tile)) {
01287 case ROAD_TILE_NORMAL:
01288 DrawRoadBits(ti);
01289 break;
01290
01291 case ROAD_TILE_CROSSING: {
01292 if (ti->tileh != SLOPE_FLAT) DrawFoundation(ti, FOUNDATION_LEVELED);
01293
01294 PaletteID pal = PAL_NONE;
01295 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(ti->tile));
01296
01297 if (rti->UsesOverlay()) {
01298 Axis axis = GetCrossingRailAxis(ti->tile);
01299 SpriteID road = SPR_ROAD_Y + axis;
01300
01301 Roadside roadside = GetRoadside(ti->tile);
01302
01303 if (AlwaysDrawUnpavedRoads(ti->tile, roadside)) {
01304 road += 19;
01305 } else {
01306 switch (roadside) {
01307 case ROADSIDE_BARREN: pal = PALETTE_TO_BARE_LAND; break;
01308 case ROADSIDE_GRASS: break;
01309 default: road -= 19; break;
01310 }
01311 }
01312
01313 DrawGroundSprite(road, pal);
01314
01315 SpriteID rail = GetCustomRailSprite(rti, ti->tile, RTSG_CROSSING) + axis;
01316
01317 pal = (_game_mode != GM_MENU && _settings_client.gui.show_track_reservation && HasCrossingReservation(ti->tile)) ? PALETTE_CRASH : PAL_NONE;
01318 DrawGroundSprite(rail, pal);
01319
01320 DrawRailTileSeq(ti, &_crossing_layout, TO_CATENARY, rail, 0, PAL_NONE);
01321 } else {
01322 SpriteID image = rti->base_sprites.crossing;
01323
01324 if (GetCrossingRoadAxis(ti->tile) == AXIS_X) image++;
01325 if (IsCrossingBarred(ti->tile)) image += 2;
01326
01327 Roadside roadside = GetRoadside(ti->tile);
01328
01329 if (AlwaysDrawUnpavedRoads(ti->tile, roadside)) {
01330 image += 8;
01331 } else {
01332 switch (roadside) {
01333 case ROADSIDE_BARREN: pal = PALETTE_TO_BARE_LAND; break;
01334 case ROADSIDE_GRASS: break;
01335 default: image += 4; break;
01336 }
01337 }
01338
01339 DrawGroundSprite(image, pal);
01340
01341
01342 if (_game_mode != GM_MENU && _settings_client.gui.show_track_reservation && HasCrossingReservation(ti->tile)) {
01343 DrawGroundSprite(GetCrossingRoadAxis(ti->tile) == AXIS_Y ? GetRailTypeInfo(GetRailType(ti->tile))->base_sprites.single_x : GetRailTypeInfo(GetRailType(ti->tile))->base_sprites.single_y, PALETTE_CRASH);
01344 }
01345 }
01346
01347 if (HasTileRoadType(ti->tile, ROADTYPE_TRAM)) {
01348 DrawGroundSprite(SPR_TRAMWAY_OVERLAY + (GetCrossingRoadAxis(ti->tile) ^ 1), pal);
01349 DrawTramCatenary(ti, GetCrossingRoadBits(ti->tile));
01350 }
01351 if (HasCatenaryDrawn(GetRailType(ti->tile))) DrawCatenary(ti);
01352 break;
01353 }
01354
01355 default:
01356 case ROAD_TILE_DEPOT: {
01357 if (ti->tileh != SLOPE_FLAT) DrawFoundation(ti, FOUNDATION_LEVELED);
01358
01359 PaletteID palette = COMPANY_SPRITE_COLOUR(GetTileOwner(ti->tile));
01360
01361 const DrawTileSprites *dts;
01362 if (HasTileRoadType(ti->tile, ROADTYPE_TRAM)) {
01363 dts = &_tram_depot[GetRoadDepotDirection(ti->tile)];
01364 } else {
01365 dts = &_road_depot[GetRoadDepotDirection(ti->tile)];
01366 }
01367
01368 DrawGroundSprite(dts->ground.sprite, PAL_NONE);
01369 DrawOrigTileSeq(ti, dts, TO_BUILDINGS, palette);
01370 break;
01371 }
01372 }
01373 DrawBridgeMiddle(ti);
01374 }
01375
01383 void DrawRoadDepotSprite(int x, int y, DiagDirection dir, RoadType rt)
01384 {
01385 PaletteID palette = COMPANY_SPRITE_COLOUR(_local_company);
01386 const DrawTileSprites *dts = (rt == ROADTYPE_TRAM) ? &_tram_depot[dir] : &_road_depot[dir];
01387
01388 x += 33;
01389 y += 17;
01390
01391 DrawSprite(dts->ground.sprite, PAL_NONE, x, y);
01392 DrawOrigTileSeqInGUI(x, y, dts, palette);
01393 }
01394
01400 void UpdateNearestTownForRoadTiles(bool invalidate)
01401 {
01402 assert(!invalidate || _generating_world);
01403
01404 for (TileIndex t = 0; t < MapSize(); t++) {
01405 if (IsTileType(t, MP_ROAD) && !IsRoadDepot(t) && !HasTownOwnedRoad(t)) {
01406 TownID tid = (TownID)INVALID_TOWN;
01407 if (!invalidate) {
01408 const Town *town = CalcClosestTownFromTile(t);
01409 if (town != NULL) tid = town->index;
01410 }
01411 SetTownIndex(t, tid);
01412 }
01413 }
01414 }
01415
01416 static uint GetSlopeZ_Road(TileIndex tile, uint x, uint y)
01417 {
01418 uint z;
01419 Slope tileh = GetTileSlope(tile, &z);
01420
01421 if (tileh == SLOPE_FLAT) return z;
01422 if (IsNormalRoad(tile)) {
01423 Foundation f = GetRoadFoundation(tileh, GetAllRoadBits(tile));
01424 z += ApplyFoundationToSlope(f, &tileh);
01425 return z + GetPartialZ(x & 0xF, y & 0xF, tileh);
01426 } else {
01427 return z + TILE_HEIGHT;
01428 }
01429 }
01430
01431 static Foundation GetFoundation_Road(TileIndex tile, Slope tileh)
01432 {
01433 if (IsNormalRoad(tile)) {
01434 return GetRoadFoundation(tileh, GetAllRoadBits(tile));
01435 } else {
01436 return FlatteningFoundation(tileh);
01437 }
01438 }
01439
01446 static void AnimateTile_Road(TileIndex tile)
01447 {
01448 if (_settings_game.construction.traffic_lights && HasTrafficLights(tile)) {
01449 if (_tick_counter % 16 == 0) MarkTileDirtyByTile(tile);
01450 }
01451 }
01452
01453 static const Roadside _town_road_types[][2] = {
01454 { ROADSIDE_GRASS, ROADSIDE_GRASS },
01455 { ROADSIDE_PAVED, ROADSIDE_PAVED },
01456 { ROADSIDE_PAVED, ROADSIDE_PAVED },
01457 { ROADSIDE_TREES, ROADSIDE_TREES },
01458 { ROADSIDE_STREET_LIGHTS, ROADSIDE_PAVED }
01459 };
01460
01461 static const Roadside _town_road_types_2[][2] = {
01462 { ROADSIDE_GRASS, ROADSIDE_GRASS },
01463 { ROADSIDE_PAVED, ROADSIDE_PAVED },
01464 { ROADSIDE_STREET_LIGHTS, ROADSIDE_PAVED },
01465 { ROADSIDE_STREET_LIGHTS, ROADSIDE_PAVED },
01466 { ROADSIDE_STREET_LIGHTS, ROADSIDE_PAVED }
01467 };
01468
01469
01470 static void TileLoop_Road(TileIndex tile)
01471 {
01472 switch (_settings_game.game_creation.landscape) {
01473 case LT_ARCTIC:
01474 if (IsOnSnow(tile) != (GetTileZ(tile) > GetSnowLine())) {
01475 ToggleSnow(tile);
01476 MarkTileDirtyByTile(tile);
01477 }
01478 break;
01479
01480 case LT_TROPIC:
01481 if (GetTropicZone(tile) == TROPICZONE_DESERT && !IsOnDesert(tile)) {
01482 ToggleDesert(tile);
01483 MarkTileDirtyByTile(tile);
01484 }
01485 break;
01486 }
01487
01488 if (IsRoadDepot(tile)) return;
01489
01490 const Town *t = ClosestTownFromTile(tile, UINT_MAX);
01491 if (!HasRoadWorks(tile)) {
01492 HouseZonesBits grp = HZB_TOWN_EDGE;
01493
01494 if (t != NULL) {
01495 grp = GetTownRadiusGroup(t, tile);
01496
01497
01498 if (t->road_build_months != 0 &&
01499 (DistanceManhattan(t->xy, tile) < 8 || grp != HZB_TOWN_EDGE) &&
01500 IsNormalRoad(tile) && !HasAtMostOneBit(GetAllRoadBits(tile))) {
01501 if (GetFoundationSlope(tile, NULL) == SLOPE_FLAT && EnsureNoVehicleOnGround(tile).Succeeded() && Chance16(1, 40)) {
01502 StartRoadWorks(tile);
01503
01504 SndPlayTileFx(SND_21_JACKHAMMER, tile);
01505 CreateEffectVehicleAbove(
01506 TileX(tile) * TILE_SIZE + 7,
01507 TileY(tile) * TILE_SIZE + 7,
01508 0,
01509 EV_BULLDOZER);
01510 MarkTileDirtyByTile(tile);
01511 return;
01512 }
01513 }
01514 }
01515
01516 {
01517
01518 const Roadside *new_rs = (_settings_game.game_creation.landscape == LT_TOYLAND) ? _town_road_types_2[grp] : _town_road_types[grp];
01519 Roadside cur_rs = GetRoadside(tile);
01520
01521
01522 if (cur_rs == new_rs[0]) return;
01523
01524
01525 if (cur_rs == new_rs[1]) {
01526 cur_rs = new_rs[0];
01527
01528 } else if (cur_rs == ROADSIDE_BARREN) {
01529 cur_rs = new_rs[1];
01530
01531 } else {
01532 cur_rs = ROADSIDE_BARREN;
01533 }
01534 SetRoadside(tile, cur_rs);
01535 MarkTileDirtyByTile(tile);
01536 }
01537 } else {
01538
01539 if (_settings_game.construction.traffic_lights && _settings_game.construction.towns_build_traffic_lights &&
01540 (GetRoadWorksCounter(tile) < 8) && (CountBits(GetRoadBits(tile, ROADTYPE_ROAD)) >= 3) &&
01541 !HasTrafficLights(tile) && Chance16(1, 20)) {
01542 CmdBuildTrafficLights(tile, DC_EXEC | DC_AUTO | DC_NO_WATER, 0, 0, 0);
01543 MarkTileDirtyByTile(tile);
01544 }
01545 if (IncreaseRoadWorksCounter(tile)) {
01546 TerminateRoadWorks(tile);
01547
01548 if (_settings_game.economy.mod_road_rebuild) {
01549
01550 const RoadBits old_rb = GetAnyRoadBits(tile, ROADTYPE_ROAD);
01551 const RoadBits new_rb = CleanUpRoadBits(tile, old_rb);
01552
01553 if (old_rb != new_rb) {
01554 RemoveRoad(tile, DC_EXEC | DC_AUTO | DC_NO_WATER, (old_rb ^ new_rb), ROADTYPE_ROAD, true, true);
01555 }
01556 }
01557
01558 MarkTileDirtyByTile(tile);
01559 }
01560 }
01561 }
01562
01563 static bool ClickTile_Road(TileIndex tile)
01564 {
01565 if (!IsRoadDepot(tile)) return false;
01566
01567 ShowDepotWindow(tile, VEH_ROAD);
01568 return true;
01569 }
01570
01571
01572 static const TrackBits _road_trackbits[16] = {
01573 TRACK_BIT_NONE,
01574 TRACK_BIT_NONE,
01575 TRACK_BIT_NONE,
01576 TRACK_BIT_LEFT,
01577 TRACK_BIT_NONE,
01578 TRACK_BIT_Y,
01579 TRACK_BIT_LOWER,
01580 TRACK_BIT_LEFT | TRACK_BIT_LOWER | TRACK_BIT_Y,
01581 TRACK_BIT_NONE,
01582 TRACK_BIT_UPPER,
01583 TRACK_BIT_X,
01584 TRACK_BIT_LEFT | TRACK_BIT_UPPER | TRACK_BIT_X,
01585 TRACK_BIT_RIGHT,
01586 TRACK_BIT_RIGHT | TRACK_BIT_UPPER | TRACK_BIT_Y,
01587 TRACK_BIT_RIGHT | TRACK_BIT_LOWER | TRACK_BIT_X,
01588 TRACK_BIT_ALL,
01589 };
01590
01591 static TrackStatus GetTileTrackStatus_Road(TileIndex tile, TransportType mode, uint sub_mode, DiagDirection side)
01592 {
01593 TrackdirBits trackdirbits = TRACKDIR_BIT_NONE;
01594 TrackdirBits red_signals = TRACKDIR_BIT_NONE;
01595 switch (mode) {
01596 case TRANSPORT_RAIL:
01597 if (IsLevelCrossing(tile)) trackdirbits = TrackBitsToTrackdirBits(GetCrossingRailBits(tile));
01598 break;
01599
01600 case TRANSPORT_ROAD:
01601 if ((GetRoadTypes(tile) & sub_mode) == 0) break;
01602 switch (GetRoadTileType(tile)) {
01603 case ROAD_TILE_NORMAL: {
01604 const uint drd_to_multiplier[DRD_END] = { 0x101, 0x100, 0x1, 0x0 };
01605 RoadType rt = (RoadType)FindFirstBit(sub_mode);
01606 RoadBits bits = GetRoadBits(tile, rt);
01607
01608
01609 if (side != INVALID_DIAGDIR && (DiagDirToRoadBits(side) & bits) == 0) break;
01610
01611 uint multiplier = drd_to_multiplier[rt == ROADTYPE_TRAM ? DRD_NONE : GetDisallowedRoadDirections(tile)];
01612 if (!HasRoadWorks(tile)) trackdirbits = (TrackdirBits)(_road_trackbits[bits] * multiplier);
01613 if (_settings_game.construction.traffic_lights && HasTrafficLights(tile))
01614 red_signals = trackdirbits & GetTrafficLightDisallowedDirections(tile);
01615 break;
01616 }
01617
01618 case ROAD_TILE_CROSSING: {
01619 Axis axis = GetCrossingRoadAxis(tile);
01620
01621 if (side != INVALID_DIAGDIR && axis != DiagDirToAxis(side)) break;
01622
01623 trackdirbits = TrackBitsToTrackdirBits(AxisToTrackBits(axis));
01624 if (IsCrossingBarred(tile)) red_signals = trackdirbits;
01625 if (IsLevelCrossingTile(TileAddByDiagDir(tile, AxisToDiagDir(axis))) &&
01626 IsCrossingBarred(TileAddByDiagDir(tile, AxisToDiagDir(axis)))) {
01627 red_signals &= (TrackdirBits)0x0102;
01628 }
01629 if (IsLevelCrossingTile(TileAddByDiagDir(tile, ReverseDiagDir(AxisToDiagDir(axis)))) &&
01630 IsCrossingBarred(TileAddByDiagDir(tile, ReverseDiagDir(AxisToDiagDir(axis))))) {
01631 red_signals &= (TrackdirBits)0x0201;
01632 }
01633 break;
01634 }
01635
01636 default:
01637 case ROAD_TILE_DEPOT: {
01638 DiagDirection dir = GetRoadDepotDirection(tile);
01639
01640 if (side != INVALID_DIAGDIR && side != dir) break;
01641
01642 trackdirbits = TrackBitsToTrackdirBits(DiagDirToDiagTrackBits(dir));
01643 break;
01644 }
01645 }
01646 break;
01647
01648 default: break;
01649 }
01650 return CombineTrackStatus(trackdirbits, red_signals);
01651 }
01652
01653 static const StringID _road_tile_strings[] = {
01654 STR_LAI_ROAD_DESCRIPTION_ROAD,
01655 STR_LAI_ROAD_DESCRIPTION_ROAD,
01656 STR_LAI_ROAD_DESCRIPTION_ROAD,
01657 STR_LAI_ROAD_DESCRIPTION_ROAD_WITH_STREETLIGHTS,
01658 STR_LAI_ROAD_DESCRIPTION_ROAD,
01659 STR_LAI_ROAD_DESCRIPTION_TREE_LINED_ROAD,
01660 STR_LAI_ROAD_DESCRIPTION_ROAD,
01661 STR_LAI_ROAD_DESCRIPTION_ROAD,
01662 };
01663
01664 static void GetTileDesc_Road(TileIndex tile, TileDesc *td)
01665 {
01666 Owner rail_owner = INVALID_OWNER;
01667 Owner road_owner = INVALID_OWNER;
01668 Owner tram_owner = INVALID_OWNER;
01669
01670 switch (GetRoadTileType(tile)) {
01671 case ROAD_TILE_CROSSING: {
01672 td->str = STR_LAI_ROAD_DESCRIPTION_ROAD_RAIL_LEVEL_CROSSING;
01673 RoadTypes rts = GetRoadTypes(tile);
01674 rail_owner = GetTileOwner(tile);
01675 if (HasBit(rts, ROADTYPE_ROAD)) road_owner = GetRoadOwner(tile, ROADTYPE_ROAD);
01676 if (HasBit(rts, ROADTYPE_TRAM)) tram_owner = GetRoadOwner(tile, ROADTYPE_TRAM);
01677
01678 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(tile));
01679 td->rail_speed = rti->max_speed;
01680
01681 break;
01682 }
01683
01684 case ROAD_TILE_DEPOT:
01685 td->str = STR_LAI_ROAD_DESCRIPTION_ROAD_VEHICLE_DEPOT;
01686 road_owner = GetTileOwner(tile);
01687 td->build_date = Depot::GetByTile(tile)->build_date;
01688 break;
01689
01690 default: {
01691 RoadTypes rts = GetRoadTypes(tile);
01692 if (HasTrafficLights(tile)) {
01693 td->str = STR_LAI_ROAD_DESCRIPTION_ROAD_WITH_TRAFFIC_LIGHTS;
01694 } else {
01695 td->str = (HasBit(rts, ROADTYPE_ROAD) ? _road_tile_strings[GetRoadside(tile)] : STR_LAI_ROAD_DESCRIPTION_TRAMWAY);
01696 }
01697 if (HasBit(rts, ROADTYPE_ROAD)) road_owner = GetRoadOwner(tile, ROADTYPE_ROAD);
01698 if (HasBit(rts, ROADTYPE_TRAM)) tram_owner = GetRoadOwner(tile, ROADTYPE_TRAM);
01699 break;
01700 }
01701 }
01702
01703
01704
01705
01706
01707
01708 Owner first_owner = (road_owner == INVALID_OWNER ? tram_owner : road_owner);
01709 bool mixed_owners = (tram_owner != INVALID_OWNER && tram_owner != first_owner) || (rail_owner != INVALID_OWNER && rail_owner != first_owner);
01710
01711 if (mixed_owners) {
01712
01713 td->owner_type[0] = (rail_owner == INVALID_OWNER ? STR_NULL : STR_LAND_AREA_INFORMATION_RAIL_OWNER);
01714 td->owner[0] = rail_owner;
01715 td->owner_type[1] = (road_owner == INVALID_OWNER ? STR_NULL : STR_LAND_AREA_INFORMATION_ROAD_OWNER);
01716 td->owner[1] = road_owner;
01717 td->owner_type[2] = (tram_owner == INVALID_OWNER ? STR_NULL : STR_LAND_AREA_INFORMATION_TRAM_OWNER);
01718 td->owner[2] = tram_owner;
01719 } else {
01720
01721 td->owner[0] = first_owner;
01722 }
01723 }
01724
01729 static const byte _roadveh_enter_depot_dir[4] = {
01730 TRACKDIR_X_SW, TRACKDIR_Y_NW, TRACKDIR_X_NE, TRACKDIR_Y_SE
01731 };
01732
01733 static VehicleEnterTileStatus VehicleEnter_Road(Vehicle *v, TileIndex tile, int x, int y)
01734 {
01735 switch (GetRoadTileType(tile)) {
01736 case ROAD_TILE_DEPOT: {
01737 if (v->type != VEH_ROAD) break;
01738
01739 RoadVehicle *rv = RoadVehicle::From(v);
01740 if (rv->frame == RVC_DEPOT_STOP_FRAME &&
01741 _roadveh_enter_depot_dir[GetRoadDepotDirection(tile)] == rv->state) {
01742 rv->state = RVSB_IN_DEPOT;
01743 rv->vehstatus |= VS_HIDDEN;
01744 rv->direction = ReverseDir(rv->direction);
01745 if (rv->Next() == NULL) VehicleEnterDepot(rv->First());
01746 rv->tile = tile;
01747
01748 InvalidateWindowData(WC_VEHICLE_DEPOT, rv->tile);
01749 return VETSB_ENTERED_WORMHOLE;
01750 }
01751 break;
01752 }
01753
01754 default: break;
01755 }
01756 return VETSB_CONTINUE;
01757 }
01758
01759
01760 static void ChangeTileOwner_Road(TileIndex tile, Owner old_owner, Owner new_owner)
01761 {
01762 if (IsRoadDepot(tile)) {
01763 if (GetTileOwner(tile) == old_owner) {
01764 if (new_owner == INVALID_OWNER) {
01765 DoCommand(tile, 0, 0, DC_EXEC | DC_BANKRUPT, CMD_LANDSCAPE_CLEAR);
01766 } else {
01767
01768 RoadType rt = (RoadType)FIND_FIRST_BIT(GetRoadTypes(tile));
01769 Company::Get(old_owner)->road_infrastructure[rt] -= 2;
01770 Company::Get(new_owner)->road_infrastructure[rt] += 2;
01771
01772 SetTileOwner(tile, new_owner);
01773 }
01774 }
01775 return;
01776 }
01777
01778 for (RoadType rt = ROADTYPE_ROAD; rt < ROADTYPE_END; rt++) {
01779
01780 if (GetRoadOwner(tile, rt) == old_owner) {
01781 if (HasTileRoadType(tile, rt)) {
01782
01783 uint num_bits = IsLevelCrossing(tile) ? 2 : CountBits(GetRoadBits(tile, rt));
01784 Company::Get(old_owner)->road_infrastructure[rt] -= num_bits;
01785 if (new_owner != INVALID_OWNER) Company::Get(new_owner)->road_infrastructure[rt] += num_bits;
01786 }
01787
01788 SetRoadOwner(tile, rt, new_owner == INVALID_OWNER ? OWNER_NONE : new_owner);
01789 }
01790 }
01791
01792 if (IsLevelCrossing(tile)) {
01793 if (GetTileOwner(tile) == old_owner) {
01794 if (new_owner == INVALID_OWNER) {
01795 DoCommand(tile, 0, GetCrossingRailTrack(tile), DC_EXEC | DC_BANKRUPT, CMD_REMOVE_SINGLE_RAIL);
01796 } else {
01797
01798 Company::Get(old_owner)->rail_infrastructure[GetRailType(tile)] -= LEVELCROSSING_TRACKBIT_FACTOR;
01799 Company::Get(new_owner)->rail_infrastructure[GetRailType(tile)] += LEVELCROSSING_TRACKBIT_FACTOR;
01800
01801 SetTileOwner(tile, new_owner);
01802 }
01803 }
01804 }
01805 }
01806
01807 static CommandCost TerraformTile_Road(TileIndex tile, DoCommandFlag flags, uint z_new, Slope tileh_new)
01808 {
01809 if (_settings_game.construction.build_on_slopes && AutoslopeEnabled()) {
01810 switch (GetRoadTileType(tile)) {
01811 case ROAD_TILE_CROSSING:
01812 if (!IsSteepSlope(tileh_new) && (GetTileMaxZ(tile) == z_new + GetSlopeMaxZ(tileh_new)) && HasBit(VALID_LEVEL_CROSSING_SLOPES, tileh_new)) return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
01813 break;
01814
01815 case ROAD_TILE_DEPOT:
01816 if (AutoslopeCheckForEntranceEdge(tile, z_new, tileh_new, GetRoadDepotDirection(tile))) return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
01817 break;
01818
01819 case ROAD_TILE_NORMAL: {
01820 RoadBits bits = GetAllRoadBits(tile);
01821 RoadBits bits_copy = bits;
01822
01823 if (CheckRoadSlope(tileh_new, &bits_copy, ROAD_NONE, ROAD_NONE).Succeeded()) {
01824
01825 if (bits == bits_copy) {
01826 uint z_old;
01827 Slope tileh_old = GetTileSlope(tile, &z_old);
01828
01829
01830 z_old += ApplyFoundationToSlope(GetRoadFoundation(tileh_old, bits), &tileh_old);
01831 z_new += ApplyFoundationToSlope(GetRoadFoundation(tileh_new, bits), &tileh_new);
01832
01833
01834 if ((z_old == z_new) && (tileh_old == tileh_new)) return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
01835 }
01836 }
01837 break;
01838 }
01839
01840 default: NOT_REACHED();
01841 }
01842 }
01843
01844 return DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
01845 }
01846
01848 extern const TileTypeProcs _tile_type_road_procs = {
01849 DrawTile_Road,
01850 GetSlopeZ_Road,
01851 ClearTile_Road,
01852 NULL,
01853 GetTileDesc_Road,
01854 GetTileTrackStatus_Road,
01855 ClickTile_Road,
01856 AnimateTile_Road,
01857 TileLoop_Road,
01858 ChangeTileOwner_Road,
01859 NULL,
01860 VehicleEnter_Road,
01861 GetFoundation_Road,
01862 TerraformTile_Road,
01863 };