public NPCFloor(MapArea parent) : base(parent) { }
public SceneObjFloor(MapArea parent) : base(parent) { }
public Path(MapArea parent) : base(parent) { }
public TransportFloor(MapArea parent) : base(parent) { }
public MapFloor(MapArea parent) { belongArea = parent; }
public MonsterFloor(MapArea parent) : base(parent) { }