/vr/ - Retro Games

I'm trying to implement a rolling system in Doom that requires stamina. The problem is I want to make the rolling dependent on your cameras angle, instead of what it is right now, which is based on your position on the map.
If you roll foward, you roll north, regardless where you're facing so it looks weird. How can I make it so you roll the direction your facing.

Also another thing how can I give the roll invulnerability during the roll