View roll
Have you ever wanted to add that cool Black Mesa view rolling effect into your mod? Well now you can!

The code
First, go to movevars_shared.cpp and search around line 82 for this:
ConVar sv_rollangle ( "sv_rollangle", "0", FCVAR_NOTIFY | FCVAR_REPLICATED | FCVAR_DEVELOPMENTONLY, "Max view roll angle");
Change the 0 to anything between 0 and 10. Example:
ConVar sv_rollangle ( "sv_rollangle", "3", FCVAR_NOTIFY | FCVAR_REPLICATED | FCVAR_DEVELOPMENTONLY, "Max view roll angle");
After that, compile your mod and you should have view rolling in your mod.