(svn r12177) -Codechange: use 'side' parameter in GetTileTrackStatus so there can be less checks in pathfinders for depots/stations/tunnels/bridges

1 files changed, 11 insertions, 2 deletions

diff --git a/src/landscape.cpp b/src/landscape.cpp
index 8745fa19f..5641c8924 100644
--- a/src/landscape.cpp
+++ b/src/landscape.cpp
@@ -437,9 +437,18 @@ void DoClearSquare(TileIndex tile)
 	MarkTileDirtyByTile(tile);
 }
 
-uint32 GetTileTrackStatus(TileIndex tile, TransportType mode, uint sub_mode)
+/** Returns trackdirbits in lower two bytes and additional info about track status in upper two bytes
+ * If there is any trackbit at 'side', return all trackdirbits.
+ * For TRANSPORT_ROAD, return 0 if there is no roadbit (of given subtype) at given side.
+ * @param tile tile to get info about
+ * @param mode transport type
+ * @param sub_mode for TRANSPORT_ROAD, roadtypes to check
+ * @param side side we are entering from, INVALID_DIAGDIR to return all trackbits
+ * @return trackdirbits and other info depending on 'mode'
+ */
+uint32 GetTileTrackStatus(TileIndex tile, TransportType mode, uint sub_mode, DiagDirection side)
 {
-	return _tile_type_procs[GetTileType(tile)]->get_tile_track_status_proc(tile, mode, sub_mode);
+	return _tile_type_procs[GetTileType(tile)]->get_tile_track_status_proc(tile, mode, sub_mode, side);
 }
 
 void ChangeTileOwner(TileIndex tile, PlayerID old_player, PlayerID new_player)