http://forums.runrev.com/phpBB2/viewtopic.php?f=22&t=4295 http://forums.runrev.com/phpBB2/viewtopic.php?f=22&t=1053 scroll through the second and there is a link for the full source code to the game.. I tried it out a while back and it seemed pretty nifty and you can probably get some pointers and tips from the code..