Quake III point of impact / collision detection code

Hello,

I'm trying to add some effects to the Quake III code base. Firstly, though, I need to be able to detect what the point of impact is when I fire, say, my machine gun. It looks like SV_Trace() is a key function in the code but the trouble with it is that it gets called from many different places (bots, etc.).

Does anybody have any leads or tips on how I might trap the calls due to the firing of my gun? I'd be really grateful.

TAL,
Pa H.

Sounds like an interesting project. I've thought about opening the can of Q3 source to look into it, but never have. I'm a software developer by day, but just don't have the time to dig into this stuff these days with 4 young kids in the home. I'll probably get around to it someday when Quake 9 is out. ;) Best of luck to you.