I did check them out. Amazing. I just started working with java, but it's pretty easy, and I thought I was pretty good. Then there YOU go and make 3-D engines. :P Keep up the good work so I can plagiarize your code XD jk jk jk

It's really cool that this could be remade in Greenfoot. The one complaint I have is that you didn't really leave any comments in your code, and it's kind of hard to figure out what's going on, at least for me. I love this engine.

How would you add a custom map? I prepared images, but I don't understand how to set the starting point. That's the only thing I can't figure out.