public Room getRoom(int x, int y){

        //if(newRoom==null){ ?? }
        if((x<0) || (x>=worldWidth)){
            throw new IllegalArgumentException("Room xLocation " +x
                +" out of bounds. It must be between 0 and "+(worldWidth-1)+".");
        }
        if((y<0) || (y>=worldWidth)){
            throw new IllegalArgumentException("Room yLocation " +y
                +" out of bounds. It must be between 0 and "+(worldHeight-1)+".");
        }

        return myWorld[x][y];
    }