Sorry, I have lost the code. As I mentioned in the comment above I created this scenario as part of a demo at a conference - it took only 10 minutes to write the code and talk about it as I did so. The basic principle of the jumping is the same as in the jumping tutorial video (from the Greenfoot website).

@GameCode, best thing to do is create a new discussion (Discuss tab at the top of the gallery page) and talk about the problem, and give a link to your scenario. Probably it is actually something that you are doing wrong...

I think this is really well done. However, sometimes I start off facing a rock or the edge of the map, so I can't move at all without losing some health. Also, it would nice to be able to see the stats of the enemy ship (at least its health).

"Collage level" LOL I think it should say "College" :)

Builderboy, I think Greenfoot should allow subfolders for images - it sounds like a bug if it's not working properly. One thing: you may have to use forward slashes ("/") instead of backslashes in the filename.

Safari on Mac OS X 10.6 also is fine. I haven't looked at the source, but do you consume the mouse events? (I think there is a "consume()" method in the MouseEvent class, or something like that). You may need to consume them to prevent them from getting to the browser window. Worth a try anyway.

I get an exception: java.lang.RuntimeException: The specified gif file doesn't exist. at GifActor$GifDecoder.read(GifActor.java:508) at GifActor.loadImages(GifActor.java:122) at GifActor.setImage(GifActor.java:50) at Wombat.addedToWorld(Wombat.java:34) at greenfoot.World.addObject(World.java:415) at WombatWorld.<init>(WombatWorld.java:26)