One Way Halls

A simple example showing how to exploit a marathon bug to make hallways one way.(That is, you can pass from east to west, but not from west to east.) It's quite effective as a demonstration, but if you choose to use it in a real map, you'll need to polish it up- I was able to (by accident) crush myself in one of the controlling polys. Potentially quite useful in guiding a player to do things in a specific order.

Levels in map "one-way.hall":