public void Prepare()
    {
        Bar bar = new Bar();
        addObject(bar,4,9);
        Player player = new Player();
        addObject(player,0,7);     
        for (int bi = 1; bi<6; bi++)
        {
        int banditx = Greenfoot.getRandomNumber(7);
        int bandity = Greenfoot.getRandomNumber(7);
        Actor bandit;
        bandit = getOneObjectAtOffset(banditx, bandity, Bandit.class);
        if (bandit==null)
        {
          addObject(bandit, banditx, bandity);
        }
    }
    }