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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(GetRoadOwner(tile, rt));
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
00384
00385
00386 c = Company::GetIfValid(GetTileOwner(tile));
00387 if (c != NULL) c->rail_infrastructure[GetRailType(tile)] -= LEVELCROSSING_TRACKBIT_FACTOR - 1;
00388 } else {
00389 SetRoadTypes(tile, rts);
00390
00391 }
00392 MarkTileDirtyByTile(tile);
00393 YapfNotifyTrackLayoutChange(tile, railtrack);
00394 }
00395 return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_CLEAR_ROAD] * 2);
00396 }
00397
00398 default:
00399 case ROAD_TILE_DEPOT:
00400 return CMD_ERROR;
00401 }
00402 }
00403
00404
00416 static CommandCost CheckRoadSlope(Slope tileh, RoadBits *pieces, RoadBits existing, RoadBits other)
00417 {
00418
00419 CLRBITS(*pieces, existing);
00420
00421
00422 if (*pieces == ROAD_NONE) return CMD_ERROR;
00423
00424
00425 if (tileh == SLOPE_FLAT) return CommandCost();
00426
00427
00428 if (IsSteepSlope(tileh)) {
00429
00430 *pieces |= MirrorRoadBits(*pieces);
00431
00432
00433
00434 existing |= other;
00435
00436 if ((existing == ROAD_NONE || existing == *pieces) && IsStraightRoad(*pieces)) {
00437 return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
00438 }
00439 return CMD_ERROR;
00440 }
00441
00442
00443 RoadBits type_bits = existing | *pieces;
00444
00445
00446 if (_settings_game.construction.build_on_slopes && (_invalid_tileh_slopes_road[0][tileh] & (other | type_bits)) == ROAD_NONE) {
00447
00448
00449 if ((other | existing) == ROAD_NONE) return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
00450
00451 return CommandCost();
00452 }
00453
00454
00455 *pieces |= MirrorRoadBits(*pieces);
00456 type_bits = existing | *pieces;
00457
00458
00459 if (IsStraightRoad(type_bits) && (other == type_bits || other == ROAD_NONE) &&
00460 (_invalid_tileh_slopes_road[1][tileh] & (other | type_bits)) == ROAD_NONE) {
00461
00462
00463 if (IsSlopeWithOneCornerRaised(tileh)) {
00464
00465
00466 if (_settings_game.construction.build_on_slopes) {
00467
00468
00469 if ((other | existing) == ROAD_NONE) return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
00470
00471 return CommandCost();
00472 }
00473 } else {
00474 if (HasExactlyOneBit(existing) && GetRoadFoundation(tileh, existing) == FOUNDATION_NONE) return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
00475 return CommandCost();
00476 }
00477 }
00478 return CMD_ERROR;
00479 }
00480
00492 CommandCost CmdBuildRoad(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00493 {
00494 CommandCost cost(EXPENSES_CONSTRUCTION);
00495
00496 RoadBits existing = ROAD_NONE;
00497 RoadBits other_bits = ROAD_NONE;
00498
00499
00500
00501 if ((Company::IsValidID(_current_company) && p2 != 0) || (_current_company == OWNER_TOWN && !Town::IsValidID(p2))) return CMD_ERROR;
00502 if (_current_company != OWNER_TOWN) {
00503 const Town *town = CalcClosestTownFromTile(tile);
00504 p2 = (town != NULL) ? town->index : (TownID)INVALID_TOWN;
00505 }
00506
00507 RoadBits pieces = Extract<RoadBits, 0, 4>(p1);
00508
00509
00510 if (pieces == ROAD_NONE) return CMD_ERROR;
00511
00512 RoadType rt = Extract<RoadType, 4, 2>(p1);
00513 if (!IsValidRoadType(rt) || !ValParamRoadType(rt)) return CMD_ERROR;
00514
00515 DisallowedRoadDirections toggle_drd = Extract<DisallowedRoadDirections, 6, 2>(p1);
00516
00517 Slope tileh = GetTileSlope(tile, NULL);
00518
00519 bool need_to_clear = false;
00520 switch (GetTileType(tile)) {
00521 case MP_ROAD:
00522 switch (GetRoadTileType(tile)) {
00523 case ROAD_TILE_NORMAL: {
00524 if (HasRoadWorks(tile)) return_cmd_error(STR_ERROR_ROAD_WORKS_IN_PROGRESS);
00525
00526 other_bits = GetOtherRoadBits(tile, rt);
00527 if (!HasTileRoadType(tile, rt)) break;
00528
00529 existing = GetRoadBits(tile, rt);
00530 bool crossing = !IsStraightRoad(existing | pieces);
00531 if (rt != ROADTYPE_TRAM && (GetDisallowedRoadDirections(tile) != DRD_NONE || toggle_drd != DRD_NONE) && crossing) {
00532
00533 return_cmd_error(STR_ERROR_ONEWAY_ROADS_CAN_T_HAVE_JUNCTION);
00534 }
00535 if ((existing & pieces) == pieces) {
00536
00537 if (toggle_drd != DRD_NONE && rt != ROADTYPE_TRAM) {
00538 if (crossing) return_cmd_error(STR_ERROR_ONEWAY_ROADS_CAN_T_HAVE_JUNCTION);
00539
00540 Owner owner = GetRoadOwner(tile, ROADTYPE_ROAD);
00541 if (owner != OWNER_NONE) {
00542 CommandCost ret = CheckOwnership(owner, tile);
00543 if (ret.Failed()) return ret;
00544 }
00545
00546 DisallowedRoadDirections dis_existing = GetDisallowedRoadDirections(tile);
00547 DisallowedRoadDirections dis_new = dis_existing ^ toggle_drd;
00548
00549
00550
00551
00552
00553 if (CountBits(dis_existing) <= CountBits(dis_new)) {
00554 CommandCost ret = EnsureNoVehicleOnGround(tile);
00555 if (ret.Failed()) return ret;
00556 }
00557
00558
00559 if ((flags & DC_EXEC) && rt != ROADTYPE_TRAM && IsStraightRoad(existing)) {
00560 SetDisallowedRoadDirections(tile, dis_new);
00561 MarkTileDirtyByTile(tile);
00562 }
00563 return CommandCost();
00564 }
00565 return_cmd_error(STR_ERROR_ALREADY_BUILT);
00566 }
00567 break;
00568 }
00569
00570 case ROAD_TILE_CROSSING:
00571 other_bits = GetCrossingRoadBits(tile);
00572 if (pieces & ComplementRoadBits(other_bits)) goto do_clear;
00573 pieces = other_bits;
00574
00575 if (HasTileRoadType(tile, rt)) return_cmd_error(STR_ERROR_ALREADY_BUILT);
00576 break;
00577
00578 case ROAD_TILE_DEPOT:
00579 if ((GetAnyRoadBits(tile, rt) & pieces) == pieces) return_cmd_error(STR_ERROR_ALREADY_BUILT);
00580 goto do_clear;
00581
00582 default: NOT_REACHED();
00583 }
00584 break;
00585
00586 case MP_RAILWAY: {
00587 if (IsSteepSlope(tileh)) {
00588 return_cmd_error(STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION);
00589 }
00590
00591
00592 if (!HasBit(VALID_LEVEL_CROSSING_SLOPES, tileh)) {
00593 return_cmd_error(STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION);
00594 }
00595
00596 if (GetRailTileType(tile) != RAIL_TILE_NORMAL) goto do_clear;
00597
00598 if (RailNoLevelCrossings(GetRailType(tile))) {
00599 return_cmd_error(STR_ERROR_CROSSING_DISALLOWED);
00600 }
00601
00602 Axis roaddir;
00603 switch (GetTrackBits(tile)) {
00604 case TRACK_BIT_X:
00605 if (pieces & ROAD_X) goto do_clear;
00606 roaddir = AXIS_Y;
00607 break;
00608
00609 case TRACK_BIT_Y:
00610 if (pieces & ROAD_Y) goto do_clear;
00611 roaddir = AXIS_X;
00612 break;
00613
00614 default: goto do_clear;
00615 }
00616
00617 CommandCost ret = EnsureNoVehicleOnGround(tile);
00618 if (ret.Failed()) return ret;
00619
00620 if (flags & DC_EXEC) {
00621 Track railtrack = AxisToTrack(OtherAxis(roaddir));
00622 YapfNotifyTrackLayoutChange(tile, railtrack);
00623
00624 Company *c = Company::GetIfValid(_current_company);
00625 if (c != NULL) {
00626 c->road_infrastructure[rt] += 2;
00627 if (rt != ROADTYPE_ROAD) c->road_infrastructure[ROADTYPE_ROAD] += 2;
00628 DirtyCompanyInfrastructureWindows(_current_company);
00629 }
00630
00631
00632 c = Company::GetIfValid(GetTileOwner(tile));
00633 if (c != NULL) c->rail_infrastructure[GetRailType(tile)] += LEVELCROSSING_TRACKBIT_FACTOR - 1;
00634
00635
00636 bool reserved = HasBit(GetRailReservationTrackBits(tile), railtrack);
00637 MakeRoadCrossing(tile, _current_company, _current_company, GetTileOwner(tile), roaddir, GetRailType(tile), RoadTypeToRoadTypes(rt) | ROADTYPES_ROAD, p2);
00638 SetCrossingReservation(tile, reserved);
00639 UpdateLevelCrossing(tile, false);
00640 MarkTileDirtyByTile(tile);
00641 }
00642 return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_ROAD] * (rt == ROADTYPE_ROAD ? 2 : 4));
00643 }
00644
00645 case MP_STATION: {
00646 if ((GetAnyRoadBits(tile, rt) & pieces) == pieces) return_cmd_error(STR_ERROR_ALREADY_BUILT);
00647 if (!IsDriveThroughStopTile(tile)) goto do_clear;
00648
00649 RoadBits curbits = AxisToRoadBits(DiagDirToAxis(GetRoadStopDir(tile)));
00650 if (pieces & ~curbits) goto do_clear;
00651 pieces = curbits;
00652
00653 if (HasTileRoadType(tile, rt)) return_cmd_error(STR_ERROR_ALREADY_BUILT);
00654 break;
00655 }
00656
00657 case MP_TUNNELBRIDGE: {
00658 if (GetTunnelBridgeTransportType(tile) != TRANSPORT_ROAD) goto do_clear;
00659 if (MirrorRoadBits(DiagDirToRoadBits(GetTunnelBridgeDirection(tile))) != pieces) goto do_clear;
00660 if (HasTileRoadType(tile, rt)) return_cmd_error(STR_ERROR_ALREADY_BUILT);
00661
00662 CommandCost ret = TunnelBridgeIsFree(tile, GetOtherTunnelBridgeEnd(tile));
00663 if (ret.Failed()) return ret;
00664 break;
00665 }
00666
00667 default: {
00668 do_clear:;
00669 need_to_clear = true;
00670 break;
00671 }
00672 }
00673
00674 if (need_to_clear) {
00675 CommandCost ret = DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00676 if (ret.Failed()) return ret;
00677 cost.AddCost(ret);
00678 }
00679
00680 if (other_bits != pieces) {
00681
00682 CommandCost ret = CheckRoadSlope(tileh, &pieces, existing, other_bits);
00683
00684
00685 if (ret.Failed() || (ret.GetCost() != 0 && !_settings_game.construction.build_on_slopes)) {
00686 return_cmd_error(STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION);
00687 }
00688 cost.AddCost(ret);
00689 }
00690
00691 if (!need_to_clear) {
00692 if (IsTileType(tile, MP_ROAD)) {
00693
00694 pieces &= ComplementRoadBits(existing);
00695
00696
00697 if (IsNormalRoad(tile)) {
00698 Slope slope = GetTileSlope(tile, NULL);
00699 Foundation found_new = GetRoadFoundation(slope, pieces | existing);
00700
00701
00702 for (RoadType rtest = ROADTYPE_ROAD; rtest < ROADTYPE_END; rtest++) {
00703 if (rtest != rt) {
00704 RoadBits bits = GetRoadBits(tile, rtest);
00705
00706 if (bits != ROAD_NONE && GetRoadFoundation(slope, bits) != found_new) {
00707 return_cmd_error(STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION);
00708 }
00709 }
00710 }
00711 }
00712 }
00713
00714 CommandCost ret = EnsureNoVehicleOnGround(tile);
00715 if (ret.Failed()) return ret;
00716
00717 }
00718 cost.AddCost(CountBits(pieces) * _price[PR_BUILD_ROAD]);
00719
00720 if (!need_to_clear && IsTileType(tile, MP_TUNNELBRIDGE)) {
00721
00722 cost.MultiplyCost(GetTunnelBridgeLength(GetOtherTunnelBridgeEnd(tile), tile) + 2);
00723 }
00724
00725 if (flags & DC_EXEC) {
00726 switch (GetTileType(tile)) {
00727 case MP_ROAD: {
00728 RoadTileType rtt = GetRoadTileType(tile);
00729 if (existing == ROAD_NONE || rtt == ROAD_TILE_CROSSING) {
00730 SetRoadTypes(tile, GetRoadTypes(tile) | RoadTypeToRoadTypes(rt));
00731 SetRoadOwner(tile, rt, _current_company);
00732 if (rt == ROADTYPE_ROAD) SetTownIndex(tile, p2);
00733 }
00734 if (rtt != ROAD_TILE_CROSSING) SetRoadBits(tile, existing | pieces, rt);
00735 break;
00736 }
00737
00738 case MP_TUNNELBRIDGE: {
00739 TileIndex other_end = GetOtherTunnelBridgeEnd(tile);
00740
00741 SetRoadTypes(other_end, GetRoadTypes(other_end) | RoadTypeToRoadTypes(rt));
00742 SetRoadTypes(tile, GetRoadTypes(tile) | RoadTypeToRoadTypes(rt));
00743 SetRoadOwner(other_end, rt, _current_company);
00744 SetRoadOwner(tile, rt, _current_company);
00745
00746
00747 MarkTileDirtyByTile(other_end);
00748 MarkTileDirtyByTile(tile);
00749 if (IsBridge(tile)) {
00750 TileIndexDiff delta = TileOffsByDiagDir(GetTunnelBridgeDirection(tile));
00751
00752 for (TileIndex t = tile + delta; t != other_end; t += delta) MarkTileDirtyByTile(t);
00753 }
00754 break;
00755 }
00756
00757 case MP_STATION:
00758 assert(IsDriveThroughStopTile(tile));
00759 SetRoadTypes(tile, GetRoadTypes(tile) | RoadTypeToRoadTypes(rt));
00760 SetRoadOwner(tile, rt, _current_company);
00761 break;
00762
00763 default:
00764 MakeRoadNormal(tile, pieces, RoadTypeToRoadTypes(rt), p2, _current_company, _current_company);
00765 break;
00766 }
00767
00768
00769 Company *c = Company::GetIfValid(GetRoadOwner(tile, rt));
00770 if (c != NULL) {
00771 uint num_pieces = CountBits(pieces);
00772 if (IsTileType(tile, MP_TUNNELBRIDGE)) num_pieces *= TUNNELBRIDGE_TRACKBIT_FACTOR;
00773 c->road_infrastructure[rt] += num_pieces;
00774 DirtyCompanyInfrastructureWindows(c->index);
00775 }
00776
00777 if (rt != ROADTYPE_TRAM && IsNormalRoadTile(tile)) {
00778 existing |= pieces;
00779 SetDisallowedRoadDirections(tile, IsStraightRoad(existing) ?
00780 GetDisallowedRoadDirections(tile) ^ toggle_drd : DRD_NONE);
00781 }
00782
00783 MarkTileDirtyByTile(tile);
00784 }
00785 return cost;
00786 }
00787
00803 CommandCost CmdBuildLongRoad(TileIndex start_tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00804 {
00805 DisallowedRoadDirections drd = DRD_NORTHBOUND;
00806
00807 if (p1 >= MapSize()) return CMD_ERROR;
00808
00809 TileIndex end_tile = p1;
00810 RoadType rt = Extract<RoadType, 3, 2>(p2);
00811 if (!IsValidRoadType(rt) || !ValParamRoadType(rt)) return CMD_ERROR;
00812
00813 Axis axis = Extract<Axis, 2, 1>(p2);
00814
00815 if (axis == AXIS_X && TileY(start_tile) != TileY(end_tile)) return CMD_ERROR;
00816 if (axis == AXIS_Y && TileX(start_tile) != TileX(end_tile)) return CMD_ERROR;
00817
00818 DiagDirection dir = AxisToDiagDir(axis);
00819
00820
00821 if (start_tile > end_tile || (start_tile == end_tile && HasBit(p2, 0))) {
00822 dir = ReverseDiagDir(dir);
00823 p2 ^= 3;
00824 drd = DRD_SOUTHBOUND;
00825 }
00826
00827
00828
00829
00830 if ((axis == AXIS_Y) == (start_tile == end_tile && HasBit(p2, 0) == HasBit(p2, 1))) drd ^= DRD_BOTH;
00831
00832 if (!HasBit(p2, 5)) drd = DRD_NONE;
00833
00834 CommandCost cost(EXPENSES_CONSTRUCTION);
00835 CommandCost last_error = CMD_ERROR;
00836 TileIndex tile = start_tile;
00837 bool had_bridge = false;
00838 bool had_tunnel = false;
00839 bool had_success = false;
00840
00841 for (;;) {
00842 RoadBits bits = AxisToRoadBits(axis);
00843
00844
00845 if (tile == end_tile && !HasBit(p2, 1)) bits &= DiagDirToRoadBits(ReverseDiagDir(dir));
00846 if (tile == start_tile && HasBit(p2, 0)) bits &= DiagDirToRoadBits(dir);
00847
00848 CommandCost ret = DoCommand(tile, drd << 6 | rt << 4 | bits, 0, flags, CMD_BUILD_ROAD);
00849 if (ret.Failed()) {
00850 last_error = ret;
00851 if (last_error.GetErrorMessage() != STR_ERROR_ALREADY_BUILT) {
00852 if (HasBit(p2, 6)) return last_error;
00853 break;
00854 }
00855 } else {
00856 had_success = true;
00857
00858 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
00859 if (IsBridge(tile)) {
00860 if (!had_bridge || GetTunnelBridgeDirection(tile) == dir) {
00861 cost.AddCost(ret);
00862 }
00863 had_bridge = true;
00864 } else {
00865 if (!had_tunnel || GetTunnelBridgeDirection(tile) == dir) {
00866 cost.AddCost(ret);
00867 }
00868 had_tunnel = true;
00869 }
00870 } else {
00871 cost.AddCost(ret);
00872 }
00873 }
00874
00875 if (tile == end_tile) break;
00876
00877 tile += TileOffsByDiagDir(dir);
00878 }
00879
00880 return had_success ? cost : last_error;
00881 }
00882
00896 CommandCost CmdRemoveLongRoad(TileIndex start_tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00897 {
00898 CommandCost cost(EXPENSES_CONSTRUCTION);
00899
00900 if (p1 >= MapSize()) return CMD_ERROR;
00901
00902 TileIndex end_tile = p1;
00903 RoadType rt = Extract<RoadType, 3, 2>(p2);
00904 if (!IsValidRoadType(rt)) return CMD_ERROR;
00905
00906 Axis axis = Extract<Axis, 2, 1>(p2);
00907
00908 if (axis == AXIS_X && TileY(start_tile) != TileY(end_tile)) return CMD_ERROR;
00909 if (axis == AXIS_Y && TileX(start_tile) != TileX(end_tile)) return CMD_ERROR;
00910
00911
00912 if (start_tile > end_tile || (start_tile == end_tile && HasBit(p2, 0))) {
00913 TileIndex t = start_tile;
00914 start_tile = end_tile;
00915 end_tile = t;
00916 p2 ^= IsInsideMM(p2 & 3, 1, 3) ? 3 : 0;
00917 }
00918
00919 Money money = GetAvailableMoneyForCommand();
00920 TileIndex tile = start_tile;
00921 CommandCost last_error = CMD_ERROR;
00922 bool had_success = false;
00923
00924 for (;;) {
00925 RoadBits bits = AxisToRoadBits(axis);
00926
00927 if (tile == end_tile && !HasBit(p2, 1)) bits &= ROAD_NW | ROAD_NE;
00928 if (tile == start_tile && HasBit(p2, 0)) bits &= ROAD_SE | ROAD_SW;
00929
00930
00931 if (bits != 0) {
00932 CommandCost ret = RemoveRoad(tile, flags & ~DC_EXEC, bits, rt, true, true);
00933 if (ret.Succeeded()) {
00934 if (flags & DC_EXEC) {
00935 money -= ret.GetCost();
00936 if (money < 0) {
00937 _additional_cash_required = DoCommand(start_tile, end_tile, p2, flags & ~DC_EXEC, CMD_REMOVE_LONG_ROAD).GetCost();
00938 return cost;
00939 }
00940 RemoveRoad(tile, flags, bits, rt, true, true, false);
00941 }
00942 cost.AddCost(ret);
00943 had_success = true;
00944 } else {
00945
00946 if (last_error.GetErrorMessage() != STR_ERROR_OWNED_BY) last_error = ret;
00947 }
00948 }
00949
00950 if (tile == end_tile) break;
00951
00952 tile += (axis == AXIS_Y) ? TileDiffXY(0, 1) : TileDiffXY(1, 0);
00953 }
00954
00955 return had_success ? cost : last_error;
00956 }
00957
00971 CommandCost CmdBuildRoadDepot(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00972 {
00973 DiagDirection dir = Extract<DiagDirection, 0, 2>(p1);
00974 RoadType rt = Extract<RoadType, 2, 2>(p1);
00975
00976 if (!IsValidRoadType(rt) || !ValParamRoadType(rt)) return CMD_ERROR;
00977
00978 Slope tileh = GetTileSlope(tile, NULL);
00979 if (tileh != SLOPE_FLAT && (
00980 !_settings_game.construction.build_on_slopes ||
00981 IsSteepSlope(tileh) ||
00982 !CanBuildDepotByTileh(dir, tileh)
00983 )) {
00984 return_cmd_error(STR_ERROR_FLAT_LAND_REQUIRED);
00985 }
00986
00987 CommandCost cost = DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
00988 if (cost.Failed()) return cost;
00989
00990 if (MayHaveBridgeAbove(tile) && IsBridgeAbove(tile)) return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
00991
00992 if (!Depot::CanAllocateItem()) return CMD_ERROR;
00993
00994 if (flags & DC_EXEC) {
00995 Depot *dep = new Depot(tile);
00996 dep->build_date = _date;
00997
00998
00999 Company::Get(_current_company)->road_infrastructure[rt] += 2;
01000 DirtyCompanyInfrastructureWindows(_current_company);
01001
01002 MakeRoadDepot(tile, _current_company, dep->index, dir, rt);
01003 MarkTileDirtyByTile(tile);
01004 MakeDefaultName(dep);
01005 }
01006 cost.AddCost(_price[PR_BUILD_DEPOT_ROAD]);
01007 return cost;
01008 }
01009
01010 static CommandCost RemoveRoadDepot(TileIndex tile, DoCommandFlag flags)
01011 {
01012 if (_current_company != OWNER_WATER) {
01013 CommandCost ret = CheckTileOwnership(tile);
01014 if (ret.Failed()) return ret;
01015 }
01016
01017 CommandCost ret = EnsureNoVehicleOnGround(tile);
01018 if (ret.Failed()) return ret;
01019
01020 if (flags & DC_EXEC) {
01021 Company *c = Company::GetIfValid(GetTileOwner(tile));
01022 if (c != NULL) {
01023
01024 c->road_infrastructure[FIND_FIRST_BIT(GetRoadTypes(tile))] -= 2;
01025 DirtyCompanyInfrastructureWindows(c->index);
01026 }
01027
01028 delete Depot::GetByTile(tile);
01029 DoClearSquare(tile);
01030 }
01031
01032 return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_CLEAR_DEPOT_ROAD]);
01033 }
01034
01035 static CommandCost ClearTile_Road(TileIndex tile, DoCommandFlag flags)
01036 {
01037 switch (GetRoadTileType(tile)) {
01038 case ROAD_TILE_NORMAL: {
01039 RoadBits b = GetAllRoadBits(tile);
01040
01041
01042 if ((HasExactlyOneBit(b) && GetRoadBits(tile, ROADTYPE_TRAM) == ROAD_NONE) || !(flags & DC_AUTO)) {
01043 CommandCost ret(EXPENSES_CONSTRUCTION);
01044
01045
01046 if (HasTrafficLights(tile)) {
01047 CommandCost tl_ret = CmdRemoveTrafficLights(tile, flags, 0, 0, 0);
01048 if (tl_ret.Failed()) return tl_ret;
01049 ret.AddCost(tl_ret);
01050 }
01051
01052
01053 RoadType rt;
01054 FOR_EACH_SET_ROADTYPE(rt, GetRoadTypes(tile)) {
01055 CommandCost tmp_ret = RemoveRoad(tile, flags, GetRoadBits(tile, rt), rt, true, false);
01056 if (tmp_ret.Failed()) return tmp_ret;
01057 ret.AddCost(tmp_ret);
01058 }
01059 return ret;
01060 }
01061 return_cmd_error(STR_ERROR_MUST_REMOVE_ROAD_FIRST);
01062 }
01063
01064 case ROAD_TILE_CROSSING: {
01065 RoadTypes rts = GetRoadTypes(tile);
01066 CommandCost ret(EXPENSES_CONSTRUCTION);
01067
01068 if (flags & DC_AUTO) return_cmd_error(STR_ERROR_MUST_REMOVE_ROAD_FIRST);
01069
01070
01071
01072 RoadType rt = ROADTYPE_TRAM;
01073 do {
01074 if (HasBit(rts, rt)) {
01075 CommandCost tmp_ret = RemoveRoad(tile, flags, GetCrossingRoadBits(tile), rt, false, false);
01076 if (tmp_ret.Failed()) return tmp_ret;
01077 ret.AddCost(tmp_ret);
01078 }
01079 } while (rt-- != ROADTYPE_ROAD);
01080
01081 if (flags & DC_EXEC) {
01082 DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
01083 }
01084 return ret;
01085 }
01086
01087 default:
01088 case ROAD_TILE_DEPOT:
01089 if (flags & DC_AUTO) {
01090 return_cmd_error(STR_ERROR_BUILDING_MUST_BE_DEMOLISHED);
01091 }
01092 return RemoveRoadDepot(tile, flags);
01093 }
01094 }
01095
01096
01097 struct DrawRoadTileStruct {
01098 uint16 image;
01099 byte subcoord_x;
01100 byte subcoord_y;
01101 };
01102
01103 #include "table/road_land.h"
01104
01112 static Foundation GetRoadFoundation(Slope tileh, RoadBits bits)
01113 {
01114
01115 if (tileh == SLOPE_FLAT || bits == ROAD_NONE) return FOUNDATION_NONE;
01116
01117 if (!IsSteepSlope(tileh)) {
01118
01119 if ((_invalid_tileh_slopes_road[0][tileh] & bits) == ROAD_NONE) return FOUNDATION_LEVELED;
01120
01121
01122 if (!IsSlopeWithOneCornerRaised(tileh) &&
01123 (_invalid_tileh_slopes_road[1][tileh] & bits) == ROAD_NONE)
01124 return FOUNDATION_NONE;
01125 }
01126
01127
01128 return (bits == ROAD_X ? FOUNDATION_INCLINED_X : FOUNDATION_INCLINED_Y);
01129 }
01130
01131 const byte _road_sloped_sprites[14] = {
01132 0, 0, 2, 0,
01133 0, 1, 0, 0,
01134 3, 0, 0, 0,
01135 0, 0
01136 };
01137
01148 static bool AlwaysDrawUnpavedRoads(TileIndex tile, Roadside roadside)
01149 {
01150 return (IsOnSnow(tile) &&
01151 !(_settings_game.game_creation.landscape == LT_TROPIC && HasGrfMiscBit(GMB_DESERT_PAVED_ROADS) &&
01152 roadside != ROADSIDE_BARREN && roadside != ROADSIDE_GRASS && roadside != ROADSIDE_GRASS_ROAD_WORKS));
01153 }
01154
01160 void DrawTramCatenary(const TileInfo *ti, RoadBits tram)
01161 {
01162
01163 if (IsInvisibilitySet(TO_CATENARY)) return;
01164
01165
01166 if (MayHaveBridgeAbove(ti->tile) && IsBridgeAbove(ti->tile) && !IsTransparencySet(TO_CATENARY)) {
01167 uint height = GetBridgeHeight(GetNorthernBridgeEnd(ti->tile));
01168
01169 if (height <= GetTileMaxZ(ti->tile) + TILE_HEIGHT) return;
01170 }
01171
01172 SpriteID front;
01173 SpriteID back;
01174
01175 if (ti->tileh != SLOPE_FLAT) {
01176 back = SPR_TRAMWAY_BACK_WIRES_SLOPED + _road_sloped_sprites[ti->tileh - 1];
01177 front = SPR_TRAMWAY_FRONT_WIRES_SLOPED + _road_sloped_sprites[ti->tileh - 1];
01178 } else {
01179 back = SPR_TRAMWAY_BASE + _road_backpole_sprites_1[tram];
01180 front = SPR_TRAMWAY_BASE + _road_frontwire_sprites_1[tram];
01181 }
01182
01183 AddSortableSpriteToDraw(back, PAL_NONE, ti->x, ti->y, 16, 16, TILE_HEIGHT + BB_HEIGHT_UNDER_BRIDGE, ti->z, IsTransparencySet(TO_CATENARY));
01184 AddSortableSpriteToDraw(front, PAL_NONE, ti->x, ti->y, 16, 16, TILE_HEIGHT + BB_HEIGHT_UNDER_BRIDGE, ti->z, IsTransparencySet(TO_CATENARY));
01185 }
01186
01195 void DrawRoadDetail(SpriteID img, TileInfo *ti, int dx, int dy, int h)
01196 {
01197 int x = ti->x | dx;
01198 int y = ti->y | dy;
01199 int32 z = ti->z;
01200 if (ti->tileh != SLOPE_FLAT) z = GetSlopeZ(x, y);
01201 AddSortableSpriteToDraw(img, PAL_NONE, x, y, 2, 2, h, z);
01202 }
01203
01208 static void DrawRoadBits(TileInfo *ti)
01209 {
01210 RoadBits road = GetRoadBits(ti->tile, ROADTYPE_ROAD);
01211 RoadBits tram = GetRoadBits(ti->tile, ROADTYPE_TRAM);
01212
01213 SpriteID image = 0;
01214 PaletteID pal = PAL_NONE;
01215
01216 if (ti->tileh != SLOPE_FLAT) {
01217 DrawFoundation(ti, GetRoadFoundation(ti->tileh, road | tram));
01218
01219
01220
01221 if (ti->tileh != SLOPE_FLAT) image = _road_sloped_sprites[ti->tileh - 1] + 0x53F;
01222 }
01223
01224 if (image == 0) image = _road_tile_sprites_1[road != ROAD_NONE ? road : tram];
01225
01226 Roadside roadside = GetRoadside(ti->tile);
01227
01228 if (AlwaysDrawUnpavedRoads(ti->tile, roadside)) {
01229 image += 19;
01230 } else {
01231 switch (roadside) {
01232 case ROADSIDE_BARREN: pal = PALETTE_TO_BARE_LAND; break;
01233 case ROADSIDE_GRASS: break;
01234 case ROADSIDE_GRASS_ROAD_WORKS: break;
01235 default: image -= 19; break;
01236 }
01237 }
01238
01239 DrawGroundSprite(image, pal);
01240
01241
01242
01243
01244 if (tram != ROAD_NONE) {
01245 if (ti->tileh != SLOPE_FLAT) {
01246 image = _road_sloped_sprites[ti->tileh - 1] + SPR_TRAMWAY_SLOPED_OFFSET;
01247 } else {
01248 image = _road_tile_sprites_1[tram] - SPR_ROAD_Y;
01249 }
01250 image += (road == ROAD_NONE) ? SPR_TRAMWAY_TRAM : SPR_TRAMWAY_OVERLAY;
01251 DrawGroundSprite(image, pal);
01252 }
01253
01254 if (road != ROAD_NONE) {
01255 DisallowedRoadDirections drd = GetDisallowedRoadDirections(ti->tile);
01256 if (drd != DRD_NONE) {
01257 DrawGroundSpriteAt(SPR_ONEWAY_BASE + drd - 1 + ((road == ROAD_X) ? 0 : 3), PAL_NONE, 8, 8, GetPartialZ(8, 8, ti->tileh));
01258 }
01259 }
01260
01261 if (_settings_game.construction.traffic_lights && HasTrafficLights(ti->tile) && _cur_dpi->zoom <= ZOOM_LVL_DETAIL) DrawTrafficLights(ti);
01262
01263 if (HasRoadWorks(ti->tile)) {
01264
01265 DrawGroundSprite((road | tram) & ROAD_X ? SPR_EXCAVATION_X : SPR_EXCAVATION_Y, PAL_NONE);
01266 return;
01267 }
01268
01269 if (tram != ROAD_NONE) DrawTramCatenary(ti, tram);
01270
01271
01272 if (!HasBit(_display_opt, DO_FULL_DETAIL) || _cur_dpi->zoom > ZOOM_LVL_DETAIL) return;
01273
01274
01275 if (MayHaveBridgeAbove(ti->tile) && IsBridgeAbove(ti->tile) && (roadside == ROADSIDE_TREES || roadside == ROADSIDE_STREET_LIGHTS)) {
01276 uint height = GetBridgeHeight(GetNorthernBridgeEnd(ti->tile));
01277 uint minz = GetTileMaxZ(ti->tile) + 2 * TILE_HEIGHT;
01278
01279 if (roadside == ROADSIDE_TREES) minz += TILE_HEIGHT;
01280
01281 if (height < minz) return;
01282 }
01283
01284
01285 if (HasAtMostOneBit(road)) return;
01286
01287
01288 for (const DrawRoadTileStruct *drts = _road_display_table[roadside][road | tram]; drts->image != 0; drts++) {
01289 DrawRoadDetail(drts->image, ti, drts->subcoord_x, drts->subcoord_y, 0x10);
01290 }
01291 }
01292
01294 static void DrawTile_Road(TileInfo *ti)
01295 {
01296 switch (GetRoadTileType(ti->tile)) {
01297 case ROAD_TILE_NORMAL:
01298 DrawRoadBits(ti);
01299 break;
01300
01301 case ROAD_TILE_CROSSING: {
01302 if (ti->tileh != SLOPE_FLAT) DrawFoundation(ti, FOUNDATION_LEVELED);
01303
01304 PaletteID pal = PAL_NONE;
01305 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(ti->tile));
01306
01307 if (rti->UsesOverlay()) {
01308 Axis axis = GetCrossingRailAxis(ti->tile);
01309 SpriteID road = SPR_ROAD_Y + axis;
01310
01311 Roadside roadside = GetRoadside(ti->tile);
01312
01313 if (AlwaysDrawUnpavedRoads(ti->tile, roadside)) {
01314 road += 19;
01315 } else {
01316 switch (roadside) {
01317 case ROADSIDE_BARREN: pal = PALETTE_TO_BARE_LAND; break;
01318 case ROADSIDE_GRASS: break;
01319 default: road -= 19; break;
01320 }
01321 }
01322
01323 DrawGroundSprite(road, pal);
01324
01325 SpriteID rail = GetCustomRailSprite(rti, ti->tile, RTSG_CROSSING) + axis;
01326
01327 pal = (_game_mode != GM_MENU && _settings_client.gui.show_track_reservation && HasCrossingReservation(ti->tile)) ? PALETTE_CRASH : PAL_NONE;
01328 DrawGroundSprite(rail, pal);
01329
01330 DrawRailTileSeq(ti, &_crossing_layout, TO_CATENARY, rail, 0, PAL_NONE);
01331 } else {
01332 SpriteID image = rti->base_sprites.crossing;
01333
01334 if (GetCrossingRoadAxis(ti->tile) == AXIS_X) image++;
01335 if (IsCrossingBarred(ti->tile)) image += 2;
01336
01337 Roadside roadside = GetRoadside(ti->tile);
01338
01339 if (AlwaysDrawUnpavedRoads(ti->tile, roadside)) {
01340 image += 8;
01341 } else {
01342 switch (roadside) {
01343 case ROADSIDE_BARREN: pal = PALETTE_TO_BARE_LAND; break;
01344 case ROADSIDE_GRASS: break;
01345 default: image += 4; break;
01346 }
01347 }
01348
01349 DrawGroundSprite(image, pal);
01350
01351
01352 if (_game_mode != GM_MENU && _settings_client.gui.show_track_reservation && HasCrossingReservation(ti->tile)) {
01353 DrawGroundSprite(GetCrossingRoadAxis(ti->tile) == AXIS_Y ? GetRailTypeInfo(GetRailType(ti->tile))->base_sprites.single_x : GetRailTypeInfo(GetRailType(ti->tile))->base_sprites.single_y, PALETTE_CRASH);
01354 }
01355 }
01356
01357 if (HasTileRoadType(ti->tile, ROADTYPE_TRAM)) {
01358 DrawGroundSprite(SPR_TRAMWAY_OVERLAY + (GetCrossingRoadAxis(ti->tile) ^ 1), pal);
01359 DrawTramCatenary(ti, GetCrossingRoadBits(ti->tile));
01360 }
01361 if (HasCatenaryDrawn(GetRailType(ti->tile))) DrawCatenary(ti);
01362 break;
01363 }
01364
01365 default:
01366 case ROAD_TILE_DEPOT: {
01367 if (ti->tileh != SLOPE_FLAT) DrawFoundation(ti, FOUNDATION_LEVELED);
01368
01369 PaletteID palette = COMPANY_SPRITE_COLOUR(GetTileOwner(ti->tile));
01370
01371 const DrawTileSprites *dts;
01372 if (HasTileRoadType(ti->tile, ROADTYPE_TRAM)) {
01373 dts = &_tram_depot[GetRoadDepotDirection(ti->tile)];
01374 } else {
01375 dts = &_road_depot[GetRoadDepotDirection(ti->tile)];
01376 }
01377
01378 DrawGroundSprite(dts->ground.sprite, PAL_NONE);
01379 DrawOrigTileSeq(ti, dts, TO_BUILDINGS, palette);
01380 break;
01381 }
01382 }
01383 DrawBridgeMiddle(ti);
01384 }
01385
01393 void DrawRoadDepotSprite(int x, int y, DiagDirection dir, RoadType rt)
01394 {
01395 PaletteID palette = COMPANY_SPRITE_COLOUR(_local_company);
01396 const DrawTileSprites *dts = (rt == ROADTYPE_TRAM) ? &_tram_depot[dir] : &_road_depot[dir];
01397
01398 x += 33;
01399 y += 17;
01400
01401 DrawSprite(dts->ground.sprite, PAL_NONE, x, y);
01402 DrawOrigTileSeqInGUI(x, y, dts, palette);
01403 }
01404
01410 void UpdateNearestTownForRoadTiles(bool invalidate)
01411 {
01412 assert(!invalidate || _generating_world);
01413
01414 for (TileIndex t = 0; t < MapSize(); t++) {
01415 if (IsTileType(t, MP_ROAD) && !IsRoadDepot(t) && !HasTownOwnedRoad(t)) {
01416 TownID tid = (TownID)INVALID_TOWN;
01417 if (!invalidate) {
01418 const Town *town = CalcClosestTownFromTile(t);
01419 if (town != NULL) tid = town->index;
01420 }
01421 SetTownIndex(t, tid);
01422 }
01423 }
01424 }
01425
01426 static uint GetSlopeZ_Road(TileIndex tile, uint x, uint y)
01427 {
01428 uint z;
01429 Slope tileh = GetTileSlope(tile, &z);
01430
01431 if (tileh == SLOPE_FLAT) return z;
01432 if (IsNormalRoad(tile)) {
01433 Foundation f = GetRoadFoundation(tileh, GetAllRoadBits(tile));
01434 z += ApplyFoundationToSlope(f, &tileh);
01435 return z + GetPartialZ(x & 0xF, y & 0xF, tileh);
01436 } else {
01437 return z + TILE_HEIGHT;
01438 }
01439 }
01440
01441 static Foundation GetFoundation_Road(TileIndex tile, Slope tileh)
01442 {
01443 if (IsNormalRoad(tile)) {
01444 return GetRoadFoundation(tileh, GetAllRoadBits(tile));
01445 } else {
01446 return FlatteningFoundation(tileh);
01447 }
01448 }
01449
01456 static void AnimateTile_Road(TileIndex tile)
01457 {
01458 if (_settings_game.construction.traffic_lights && HasTrafficLights(tile)) {
01459 if (_tick_counter % 16 == 0) MarkTileDirtyByTile(tile);
01460 }
01461 }
01462
01463 static const Roadside _town_road_types[][2] = {
01464 { ROADSIDE_GRASS, ROADSIDE_GRASS },
01465 { ROADSIDE_PAVED, ROADSIDE_PAVED },
01466 { ROADSIDE_PAVED, ROADSIDE_PAVED },
01467 { ROADSIDE_TREES, ROADSIDE_TREES },
01468 { ROADSIDE_STREET_LIGHTS, ROADSIDE_PAVED }
01469 };
01470
01471 static const Roadside _town_road_types_2[][2] = {
01472 { ROADSIDE_GRASS, ROADSIDE_GRASS },
01473 { ROADSIDE_PAVED, ROADSIDE_PAVED },
01474 { ROADSIDE_STREET_LIGHTS, ROADSIDE_PAVED },
01475 { ROADSIDE_STREET_LIGHTS, ROADSIDE_PAVED },
01476 { ROADSIDE_STREET_LIGHTS, ROADSIDE_PAVED }
01477 };
01478
01479
01480 static void TileLoop_Road(TileIndex tile)
01481 {
01482 switch (_settings_game.game_creation.landscape) {
01483 case LT_ARCTIC:
01484 if (IsOnSnow(tile) != (GetTileZ(tile) > GetSnowLine())) {
01485 ToggleSnow(tile);
01486 MarkTileDirtyByTile(tile);
01487 }
01488 break;
01489
01490 case LT_TROPIC:
01491 if (GetTropicZone(tile) == TROPICZONE_DESERT && !IsOnDesert(tile)) {
01492 ToggleDesert(tile);
01493 MarkTileDirtyByTile(tile);
01494 }
01495 break;
01496 }
01497
01498 if (IsRoadDepot(tile)) return;
01499
01500 const Town *t = ClosestTownFromTile(tile, UINT_MAX);
01501 if (!HasRoadWorks(tile)) {
01502 HouseZonesBits grp = HZB_TOWN_EDGE;
01503
01504 if (t != NULL) {
01505 grp = GetTownRadiusGroup(t, tile);
01506
01507
01508 if (t->road_build_months != 0 &&
01509 (DistanceManhattan(t->xy, tile) < 8 || grp != HZB_TOWN_EDGE) &&
01510 IsNormalRoad(tile) && !HasAtMostOneBit(GetAllRoadBits(tile))) {
01511 if (GetFoundationSlope(tile, NULL) == SLOPE_FLAT && EnsureNoVehicleOnGround(tile).Succeeded() && Chance16(1, 40)) {
01512 StartRoadWorks(tile);
01513
01514 SndPlayTileFx(SND_21_JACKHAMMER, tile);
01515 CreateEffectVehicleAbove(
01516 TileX(tile) * TILE_SIZE + 7,
01517 TileY(tile) * TILE_SIZE + 7,
01518 0,
01519 EV_BULLDOZER);
01520 MarkTileDirtyByTile(tile);
01521 return;
01522 }
01523 }
01524 }
01525
01526 {
01527
01528 const Roadside *new_rs = (_settings_game.game_creation.landscape == LT_TOYLAND) ? _town_road_types_2[grp] : _town_road_types[grp];
01529 Roadside cur_rs = GetRoadside(tile);
01530
01531
01532 if (cur_rs == new_rs[0]) return;
01533
01534
01535 if (cur_rs == new_rs[1]) {
01536 cur_rs = new_rs[0];
01537
01538 } else if (cur_rs == ROADSIDE_BARREN) {
01539 cur_rs = new_rs[1];
01540
01541 } else {
01542 cur_rs = ROADSIDE_BARREN;
01543 }
01544 SetRoadside(tile, cur_rs);
01545 MarkTileDirtyByTile(tile);
01546 }
01547 } else {
01548
01549 if (_settings_game.construction.traffic_lights && _settings_game.construction.towns_build_traffic_lights &&
01550 (GetRoadWorksCounter(tile) < 8) && (CountBits(GetRoadBits(tile, ROADTYPE_ROAD)) >= 3) &&
01551 !HasTrafficLights(tile) && Chance16(1, 20)) {
01552 CmdBuildTrafficLights(tile, DC_EXEC | DC_AUTO | DC_NO_WATER, 0, 0, 0);
01553 MarkTileDirtyByTile(tile);
01554 }
01555 if (IncreaseRoadWorksCounter(tile)) {
01556 TerminateRoadWorks(tile);
01557
01558 if (_settings_game.economy.mod_road_rebuild) {
01559
01560 const RoadBits old_rb = GetAnyRoadBits(tile, ROADTYPE_ROAD);
01561 const RoadBits new_rb = CleanUpRoadBits(tile, old_rb);
01562
01563 if (old_rb != new_rb) {
01564 RemoveRoad(tile, DC_EXEC | DC_AUTO | DC_NO_WATER, (old_rb ^ new_rb), ROADTYPE_ROAD, true, true);
01565 }
01566 }
01567
01568 MarkTileDirtyByTile(tile);
01569 }
01570 }
01571 }
01572
01573 static bool ClickTile_Road(TileIndex tile)
01574 {
01575 if (!IsRoadDepot(tile)) return false;
01576
01577 ShowDepotWindow(tile, VEH_ROAD);
01578 return true;
01579 }
01580
01581
01582 static const TrackBits _road_trackbits[16] = {
01583 TRACK_BIT_NONE,
01584 TRACK_BIT_NONE,
01585 TRACK_BIT_NONE,
01586 TRACK_BIT_LEFT,
01587 TRACK_BIT_NONE,
01588 TRACK_BIT_Y,
01589 TRACK_BIT_LOWER,
01590 TRACK_BIT_LEFT | TRACK_BIT_LOWER | TRACK_BIT_Y,
01591 TRACK_BIT_NONE,
01592 TRACK_BIT_UPPER,
01593 TRACK_BIT_X,
01594 TRACK_BIT_LEFT | TRACK_BIT_UPPER | TRACK_BIT_X,
01595 TRACK_BIT_RIGHT,
01596 TRACK_BIT_RIGHT | TRACK_BIT_UPPER | TRACK_BIT_Y,
01597 TRACK_BIT_RIGHT | TRACK_BIT_LOWER | TRACK_BIT_X,
01598 TRACK_BIT_ALL,
01599 };
01600
01601 static TrackStatus GetTileTrackStatus_Road(TileIndex tile, TransportType mode, uint sub_mode, DiagDirection side)
01602 {
01603 TrackdirBits trackdirbits = TRACKDIR_BIT_NONE;
01604 TrackdirBits red_signals = TRACKDIR_BIT_NONE;
01605 switch (mode) {
01606 case TRANSPORT_RAIL:
01607 if (IsLevelCrossing(tile)) trackdirbits = TrackBitsToTrackdirBits(GetCrossingRailBits(tile));
01608 break;
01609
01610 case TRANSPORT_ROAD:
01611 if ((GetRoadTypes(tile) & sub_mode) == 0) break;
01612 switch (GetRoadTileType(tile)) {
01613 case ROAD_TILE_NORMAL: {
01614 const uint drd_to_multiplier[DRD_END] = { 0x101, 0x100, 0x1, 0x0 };
01615 RoadType rt = (RoadType)FindFirstBit(sub_mode);
01616 RoadBits bits = GetRoadBits(tile, rt);
01617
01618
01619 if (side != INVALID_DIAGDIR && (DiagDirToRoadBits(side) & bits) == 0) break;
01620
01621 uint multiplier = drd_to_multiplier[rt == ROADTYPE_TRAM ? DRD_NONE : GetDisallowedRoadDirections(tile)];
01622 if (!HasRoadWorks(tile)) trackdirbits = (TrackdirBits)(_road_trackbits[bits] * multiplier);
01623 if (_settings_game.construction.traffic_lights && HasTrafficLights(tile))
01624 red_signals = trackdirbits & GetTrafficLightDisallowedDirections(tile);
01625 break;
01626 }
01627
01628 case ROAD_TILE_CROSSING: {
01629 Axis axis = GetCrossingRoadAxis(tile);
01630
01631 if (side != INVALID_DIAGDIR && axis != DiagDirToAxis(side)) break;
01632
01633 trackdirbits = TrackBitsToTrackdirBits(AxisToTrackBits(axis));
01634 if (IsCrossingBarred(tile)) red_signals = trackdirbits;
01635 if (IsLevelCrossingTile(TileAddByDiagDir(tile, AxisToDiagDir(axis))) &&
01636 IsCrossingBarred(TileAddByDiagDir(tile, AxisToDiagDir(axis)))) {
01637 red_signals &= (TrackdirBits)0x0102;
01638 }
01639 if (IsLevelCrossingTile(TileAddByDiagDir(tile, ReverseDiagDir(AxisToDiagDir(axis)))) &&
01640 IsCrossingBarred(TileAddByDiagDir(tile, ReverseDiagDir(AxisToDiagDir(axis))))) {
01641 red_signals &= (TrackdirBits)0x0201;
01642 }
01643 break;
01644 }
01645
01646 default:
01647 case ROAD_TILE_DEPOT: {
01648 DiagDirection dir = GetRoadDepotDirection(tile);
01649
01650 if (side != INVALID_DIAGDIR && side != dir) break;
01651
01652 trackdirbits = TrackBitsToTrackdirBits(DiagDirToDiagTrackBits(dir));
01653 break;
01654 }
01655 }
01656 break;
01657
01658 default: break;
01659 }
01660 return CombineTrackStatus(trackdirbits, red_signals);
01661 }
01662
01663 static const StringID _road_tile_strings[] = {
01664 STR_LAI_ROAD_DESCRIPTION_ROAD,
01665 STR_LAI_ROAD_DESCRIPTION_ROAD,
01666 STR_LAI_ROAD_DESCRIPTION_ROAD,
01667 STR_LAI_ROAD_DESCRIPTION_ROAD_WITH_STREETLIGHTS,
01668 STR_LAI_ROAD_DESCRIPTION_ROAD,
01669 STR_LAI_ROAD_DESCRIPTION_TREE_LINED_ROAD,
01670 STR_LAI_ROAD_DESCRIPTION_ROAD,
01671 STR_LAI_ROAD_DESCRIPTION_ROAD,
01672 };
01673
01674 static void GetTileDesc_Road(TileIndex tile, TileDesc *td)
01675 {
01676 Owner rail_owner = INVALID_OWNER;
01677 Owner road_owner = INVALID_OWNER;
01678 Owner tram_owner = INVALID_OWNER;
01679
01680 switch (GetRoadTileType(tile)) {
01681 case ROAD_TILE_CROSSING: {
01682 td->str = STR_LAI_ROAD_DESCRIPTION_ROAD_RAIL_LEVEL_CROSSING;
01683 RoadTypes rts = GetRoadTypes(tile);
01684 rail_owner = GetTileOwner(tile);
01685 if (HasBit(rts, ROADTYPE_ROAD)) road_owner = GetRoadOwner(tile, ROADTYPE_ROAD);
01686 if (HasBit(rts, ROADTYPE_TRAM)) tram_owner = GetRoadOwner(tile, ROADTYPE_TRAM);
01687
01688 const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(tile));
01689 td->rail_speed = rti->max_speed;
01690
01691 break;
01692 }
01693
01694 case ROAD_TILE_DEPOT:
01695 td->str = STR_LAI_ROAD_DESCRIPTION_ROAD_VEHICLE_DEPOT;
01696 road_owner = GetTileOwner(tile);
01697 td->build_date = Depot::GetByTile(tile)->build_date;
01698 break;
01699
01700 default: {
01701 RoadTypes rts = GetRoadTypes(tile);
01702 if (HasTrafficLights(tile)) {
01703 td->str = STR_LAI_ROAD_DESCRIPTION_ROAD_WITH_TRAFFIC_LIGHTS;
01704 } else {
01705 td->str = (HasBit(rts, ROADTYPE_ROAD) ? _road_tile_strings[GetRoadside(tile)] : STR_LAI_ROAD_DESCRIPTION_TRAMWAY);
01706 }
01707 if (HasBit(rts, ROADTYPE_ROAD)) road_owner = GetRoadOwner(tile, ROADTYPE_ROAD);
01708 if (HasBit(rts, ROADTYPE_TRAM)) tram_owner = GetRoadOwner(tile, ROADTYPE_TRAM);
01709 break;
01710 }
01711 }
01712
01713
01714
01715
01716
01717
01718 Owner first_owner = (road_owner == INVALID_OWNER ? tram_owner : road_owner);
01719 bool mixed_owners = (tram_owner != INVALID_OWNER && tram_owner != first_owner) || (rail_owner != INVALID_OWNER && rail_owner != first_owner);
01720
01721 if (mixed_owners) {
01722
01723 td->owner_type[0] = (rail_owner == INVALID_OWNER ? STR_NULL : STR_LAND_AREA_INFORMATION_RAIL_OWNER);
01724 td->owner[0] = rail_owner;
01725 td->owner_type[1] = (road_owner == INVALID_OWNER ? STR_NULL : STR_LAND_AREA_INFORMATION_ROAD_OWNER);
01726 td->owner[1] = road_owner;
01727 td->owner_type[2] = (tram_owner == INVALID_OWNER ? STR_NULL : STR_LAND_AREA_INFORMATION_TRAM_OWNER);
01728 td->owner[2] = tram_owner;
01729 } else {
01730
01731 td->owner[0] = first_owner;
01732 }
01733 }
01734
01739 static const byte _roadveh_enter_depot_dir[4] = {
01740 TRACKDIR_X_SW, TRACKDIR_Y_NW, TRACKDIR_X_NE, TRACKDIR_Y_SE
01741 };
01742
01743 static VehicleEnterTileStatus VehicleEnter_Road(Vehicle *v, TileIndex tile, int x, int y)
01744 {
01745 switch (GetRoadTileType(tile)) {
01746 case ROAD_TILE_DEPOT: {
01747 if (v->type != VEH_ROAD) break;
01748
01749 RoadVehicle *rv = RoadVehicle::From(v);
01750 if (rv->frame == RVC_DEPOT_STOP_FRAME &&
01751 _roadveh_enter_depot_dir[GetRoadDepotDirection(tile)] == rv->state) {
01752 rv->state = RVSB_IN_DEPOT;
01753 rv->vehstatus |= VS_HIDDEN;
01754 rv->direction = ReverseDir(rv->direction);
01755 if (rv->Next() == NULL) VehicleEnterDepot(rv->First());
01756 rv->tile = tile;
01757
01758 InvalidateWindowData(WC_VEHICLE_DEPOT, rv->tile);
01759 return VETSB_ENTERED_WORMHOLE;
01760 }
01761 break;
01762 }
01763
01764 default: break;
01765 }
01766 return VETSB_CONTINUE;
01767 }
01768
01769
01770 static void ChangeTileOwner_Road(TileIndex tile, Owner old_owner, Owner new_owner)
01771 {
01772 if (IsRoadDepot(tile)) {
01773 if (GetTileOwner(tile) == old_owner) {
01774 if (new_owner == INVALID_OWNER) {
01775 DoCommand(tile, 0, 0, DC_EXEC | DC_BANKRUPT, CMD_LANDSCAPE_CLEAR);
01776 } else {
01777
01778 RoadType rt = (RoadType)FIND_FIRST_BIT(GetRoadTypes(tile));
01779 Company::Get(old_owner)->road_infrastructure[rt] -= 2;
01780 Company::Get(new_owner)->road_infrastructure[rt] += 2;
01781
01782 SetTileOwner(tile, new_owner);
01783 }
01784 }
01785 return;
01786 }
01787
01788 for (RoadType rt = ROADTYPE_ROAD; rt < ROADTYPE_END; rt++) {
01789
01790 if (GetRoadOwner(tile, rt) == old_owner) {
01791 if (HasTileRoadType(tile, rt)) {
01792
01793 uint num_bits = IsLevelCrossing(tile) ? 2 : CountBits(GetRoadBits(tile, rt));
01794 Company::Get(old_owner)->road_infrastructure[rt] -= num_bits;
01795 if (new_owner != INVALID_OWNER) Company::Get(new_owner)->road_infrastructure[rt] += num_bits;
01796 }
01797
01798 SetRoadOwner(tile, rt, new_owner == INVALID_OWNER ? OWNER_NONE : new_owner);
01799 }
01800 }
01801
01802 if (IsLevelCrossing(tile)) {
01803 if (GetTileOwner(tile) == old_owner) {
01804 if (new_owner == INVALID_OWNER) {
01805 DoCommand(tile, 0, GetCrossingRailTrack(tile), DC_EXEC | DC_BANKRUPT, CMD_REMOVE_SINGLE_RAIL);
01806 } else {
01807
01808 Company::Get(old_owner)->rail_infrastructure[GetRailType(tile)] -= LEVELCROSSING_TRACKBIT_FACTOR;
01809 Company::Get(new_owner)->rail_infrastructure[GetRailType(tile)] += LEVELCROSSING_TRACKBIT_FACTOR;
01810
01811 SetTileOwner(tile, new_owner);
01812 }
01813 }
01814 }
01815 }
01816
01817 static CommandCost TerraformTile_Road(TileIndex tile, DoCommandFlag flags, uint z_new, Slope tileh_new)
01818 {
01819 if (_settings_game.construction.build_on_slopes && AutoslopeEnabled()) {
01820 switch (GetRoadTileType(tile)) {
01821 case ROAD_TILE_CROSSING:
01822 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]);
01823 break;
01824
01825 case ROAD_TILE_DEPOT:
01826 if (AutoslopeCheckForEntranceEdge(tile, z_new, tileh_new, GetRoadDepotDirection(tile))) return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
01827 break;
01828
01829 case ROAD_TILE_NORMAL: {
01830 RoadBits bits = GetAllRoadBits(tile);
01831 RoadBits bits_copy = bits;
01832
01833 if (CheckRoadSlope(tileh_new, &bits_copy, ROAD_NONE, ROAD_NONE).Succeeded()) {
01834
01835 if (bits == bits_copy) {
01836 uint z_old;
01837 Slope tileh_old = GetTileSlope(tile, &z_old);
01838
01839
01840 z_old += ApplyFoundationToSlope(GetRoadFoundation(tileh_old, bits), &tileh_old);
01841 z_new += ApplyFoundationToSlope(GetRoadFoundation(tileh_new, bits), &tileh_new);
01842
01843
01844 if ((z_old == z_new) && (tileh_old == tileh_new)) return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
01845 }
01846 }
01847 break;
01848 }
01849
01850 default: NOT_REACHED();
01851 }
01852 }
01853
01854 return DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
01855 }
01856
01858 extern const TileTypeProcs _tile_type_road_procs = {
01859 DrawTile_Road,
01860 GetSlopeZ_Road,
01861 ClearTile_Road,
01862 NULL,
01863 GetTileDesc_Road,
01864 GetTileTrackStatus_Road,
01865 ClickTile_Road,
01866 AnimateTile_Road,
01867 TileLoop_Road,
01868 ChangeTileOwner_Road,
01869 NULL,
01870 VehicleEnter_Road,
01871 GetFoundation_Road,
01872 TerraformTile_Road,
01873 };