I quickly made an example map today for someone who had trouble getting a func_door_rotating to work with glass parts. It's not a real hard problem, using two doors and triggering them, but I used this opportunity to implement something I'd thought about quite some time ago: an in-game tutorial.
The idea is to let someone play a map, show up entity information in a graphical way, display some information and thoughts about it, all in-game. Video tutorials seem to be popular amongst some people, so why not in-game tutorials?
Here's the map I made today. It's a quick draft and not exactly just how I have this in-game tutorial idea in mind, but I think it's a nice example of what I mean.
Like the idea? Got some requests perhaps? I might do this more in the future, perhaps some for HL and certainly some for Source. So, what do you guys think? It's a rough version I created and I have ideas on improving it, but how would you like to see this improved?