+
+ /**
+ * gets a bitfield of Tile::WORLDMAP_NORTH | Tile::WORLDMAP_WEST | ... values,
+ * which indicates the directions Tux can move to when at the given position.
+ */
+ int available_directions_at(Vector pos);
+
+ /**
+ * returns a bitfield representing the union of all Tile::WORLDMAP_XXX values
+ * of all solid tiles at the given position
+ */
+ int tile_data_at(Vector pos);