public void act()
    {
        if (Greenfoot.mouseClicked(null))
        {
            MouseInfo mouse = Greenfoot.getMouseInfo();

            int direction = Greenfoot.getRandomNumber(360);
            addObject (new Ball(direction), mouse.getX(), mouse.getY());
        }
        if (Greenfoot.getKey()==("space")){
            int direction = Greenfoot.getRandomNumber(360);
            addObject (new Ball(direction), 300, 250);
        }
    }
}