public void act() 
    {
        int groesse = 0;
       
        Actor a;
        a = getOneIntersectingObject(Krümel.class);
        if(a != null)
        {
            getWorld().removeObject(a);
            groesse = groesse + 1;
            System.out.println(groesse);
        }
        if (groesse = groesse + 1)
        {
        GreenfootImage image = getImage();
        image.scale(image.getWidth() + 10, image.getHeight() + 10);
        setImage(image);
    }