void creature::cleanup()
	{
		if(owner != NULL)		//remove yourself from any creatuers holding you
		{
			set(owner->y,owner->x);
			for(list<creature*>::iterator i=owner->held.begin(); i != owner->held.end(); i++)
				if((*i) == this)
					owner->held.erase(i);
			owner=NULL;
		}
		for(list<creature*>::iterator i=map[y][x].begin(); i != map[y][x].end(); i++)	//and from the map
			if((*i)==this)
				held.erase(i);
		map[y][x].erase(i);
		for(list<creature*>::iterator i=held.begin(); i != held.end(); i++)	//and drop anything that you are holding
		{
			(*i)->set(y,x);

		}
	}