def loadMap(self, map_name):
"""Load a new map.
@type map_name: string
@param map_name: Name of the map to load
@return: None"""
if not map_name in self.game_state.maps:
map_file = self.map_files[map_name]
new_map = GameMap(self.engine, self)
self.game_state.maps[map_name] = new_map
new_map.load(map_file)
