> As far as I know, at the lowest level there is no "multiple key press" > event even in the OS.
Yes, that's why I had scare-quotes in my message. > If they want to do that, they should change their world to record the > "current key press state": I told them that. But the problem is that inversion of control makes the world structure and its logic *significantly* uglier. > I have considered this issue. I decided that these kinds of kids > should be introduced to Universe programs as opposed to World > programs. That's way cooler than silly one-keyboard games. Doom is "silly"? Duke Nukem 3D is "silly"? Perhaps you do indeed know a great deal about games. But perhaps you have a more limited understanding of your audience. Shriram _________________________________________________ For list-related administrative tasks: http://lists.racket-lang.org/listinfo/dev