diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/road_cmd.cpp | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/src/road_cmd.cpp b/src/road_cmd.cpp index 2c752a88e..275cad922 100644 --- a/src/road_cmd.cpp +++ b/src/road_cmd.cpp @@ -99,6 +99,11 @@ static bool CheckAllowRemoveRoad(TileIndex tile, RoadBits remove, bool *edge_roa * @param flags operation to perform * @param p1 bit 0..3 road pieces to remove (RoadBits) * bit 4..5 road type + * bit 6 ignore the fact that the tram track has not been removed + * yet when removing the road bits when not actually doing + * it. Makes it possible to test whether the road bits can + * be removed from a level crossing without physically + * removing the tram bits before the test. * @param p2 unused */ int32 CmdRemoveRoad(TileIndex tile, uint32 flags, uint32 p1, uint32 p2) @@ -236,7 +241,7 @@ int32 CmdRemoveRoad(TileIndex tile, uint32 flags, uint32 p1, uint32 p2) /* Don't allow road to be removed from the crossing when there is tram; * we can't draw the crossing without trambits ;) */ - if (rt == ROADTYPE_ROAD && HASBIT(GetRoadTypes(tile), ROADTYPE_TRAM)) return CMD_ERROR; + if (rt == ROADTYPE_ROAD && HASBIT(GetRoadTypes(tile), ROADTYPE_TRAM) && ((flags & DC_EXEC) || !HASBIT(p1, 6))) return CMD_ERROR; if (flags & DC_EXEC) { if (rt == ROADTYPE_ROAD) { @@ -800,12 +805,20 @@ static int32 ClearTile_Road(TileIndex tile, byte flags) #undef M case ROAD_TILE_CROSSING: { - int32 ret; + RoadTypes rts = GetRoadTypes(tile); + int32 ret = 0; if (flags & DC_AUTO) return_cmd_error(STR_1801_MUST_REMOVE_ROAD_FIRST); - ret = DoCommand(tile, GetCrossingRoadBits(tile), 0, flags, CMD_REMOVE_ROAD); - if (CmdFailed(ret)) return CMD_ERROR; + /* Must iterate over the roadtypes in a reverse manner because + * tram tracks must be removed before the road bits. */ + for (RoadType rt = ROADTYPE_HWAY; rt >= ROADTYPE_ROAD; rt--) { + if (HASBIT(rts, rt)) { + int32 tmp_ret = DoCommand(tile, 1 << 6 | rt << 4 | GetCrossingRoadBits(tile), 0, flags, CMD_REMOVE_ROAD); + if (CmdFailed(tmp_ret)) return tmp_ret; + ret += tmp_ret; + } + } if (flags & DC_EXEC) { DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR); |