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I am using USB drives, so it was not too difficult to transfer everything from one to another, reformat, and then transfer back.

This only requires one actor class; instead of multiple classes (one for each health level: 'One', 'Two', 'Three', etc.). Put the three pictures in a GreenfootImage array, and as the health decreases, update the image of the object accordingly. This is most easily accomplished by adding a public method that changes the health and updates the image (by setting a new image to the actor object, the old image is removed).

Thanks Danpost.

Well your error probably is because you havend got the references to the bomb and the field. Are the references bomb and field declared before? Or are they just initialised with null? In this case you have to get the right references. If there is only one bomb and only one field you could get them like this:

This discussion post (any reference to PlayerInfo is intended for UserInfo) deals with this issue.

I never said that would fix your code. I think it would be best for you to go over the Greenfoot tutorials accessed through the 'Documentation' link above before continuing to attempt to write any code. You seem to be lost as far as some of the basics of programming with Greenfoot and Java.

First, let me say that it is customary to start variable (aka field) names with lowercase letters. It gets a litle confusing for those looking at your code when you use the same name for a class as well as a field ('Worm'). Next, you already have the intersecting object in the field 'Worm' when you (again) get it in line 7. Finally, line 10 does not relocate the Worm object, but relocates the Crab object instead. The following would be more what you need:

thanks!

Thanks. It works perfectly now :D

thank you!

Refer to this discussion post.

You must clear the image and draw opaque colors only where you do not want it to be transparent. Once a pixel of an image is set with an alpha value, any further 'draw'ing over it will still have that minimum alpha value. I just uploaded a new scenario with a support class that will do what you want. It is called Light Beam Class Demo.

It worked! Thanks man!

Thank you nooby123, I will give it a try right away. Once again, thanks for your prompt reply!

You, sir, are a genius. I wouldn't have thought of this myself. I'd like to thank you for you help, this really is helpfull!