but this will change the stars for only one layer, I mean the stars will be the same for all three layers, while what i want is different stars for different layers

Thank you so much, you are a life saver, that was awesome I don't know how didn't I think about it :( I'm starting to doubt my choice to be a programmer :s

This is really great job, it's awesome, thanks for putting the source I have one question, does anybody know how can I use my own star images? instead of adding object from greenfoot? I know the method but I don't know how to put it in the code, I mean i can use setImage but should i remove all statements in if ??? can u plzzz help me ...

Great job This is so awesome, can u plz tell me if there is a possibility to make the stars divided randomly into space ??? I tried the following code but it didn't change it the way I wanted it to getImage(). fillOval(x,y,2,2);