//function to instantiate the nodes without code repitition
public void InstantiateNode(RoomNode _room, GameObject _prefab, bool _filled, int _roomType)
{
_room.self = Instantiate(_prefab);
_room.self.transform.SetParent(this.transform);
_room.isFilled = _filled;
_room.interriorType = _roomType;
_room.InitSelf();
}