Back to doodling on Pantzer (a "drive a tank through wire-frame landscape" game). I now have enemy tanks. They're apallingly stupid (they know how to move forward in a straight line). Hopefully, I shall be alert enough tomorrow morning to make them a wee bit smarter (essentially, "if you can see player, turn slightly to get a better angle and move quickly; otherwise, turn randomly, preferring to stick with the last used angle and move slower"). This should be slightly fair, even though the player moves at a fixed speed.