The manual reads like it gets called for every entity, I guess you could tag yours with a specific skill to figure out when you want to run a certain action.

To chain them, just take the pointer of the previous function and run it inside of yours, something like this:

Code:
function (*prev_ent_remove)(ENTITY *); 

function my_ent_remove(ENTITY *ent)
{
   // ...

   if(prev_ent_remove)
       prev_ent_remove();
}


void main()
{
    prev_ent_remove = ent_remove;
    ent_remove = my_ent_remove;
}


(No guarantee that this will run like this in Lite-C cuz Lite-C is weird af, but you get the idea)

Shitlord by trade and passion. Graphics programmer at Laminar Research.
I write blog posts at feresignum.com