define selected skill100

void selection_sprite(){ // fex a circle sprite
	set(my,PASSABLE|TRANSLUCENT);
	my.tilt += 90;
	while(you){	
                vec_set(my.x, you.x);	
		if (you) if (!you.selected) break;
		wait(1);
	}
	wait(1);
	ptr_remove(me);
}

..
my.selected = 1;
ent_create("circle.tga", vector(my.x, my.y, my.z), selection_sprite);

..
wait(-1);
my.selected = 0;

vec_for_vertex, vec_for_bone, vec_set

VECTOR _p,_a;
vec_for_bone(_p, ThePlayer, "Righthand");
ang_for_bone(_a, ThePlayer, "Righthand");
vec_set(Axe.x, _p.x); //set the axe to the right hand
vec_set(Axe.pan, _a); //and rotate it with the animation of the bone

.
..
...
c_trace (...);
if (you){                   // hit entity?
   you.skill1 = hit.vertex; // store vertexnr in skill1
   example_arrow (you);     // create arrow at hit pos
}
...
..
.
void example_arrow (ENTITY* _ent){
   proc_mode |= PROC_GLOBAL;
   if (!_ent) return;
   ENTITY* your_mdl = ent_create ("arrow.mdl", nullvector, NULL);
   if (!your_mdl) return; // creation error?
   set (your_mdl, PASSABLE);
   while (_ent && your_mdl){ // hit-you and arrow-mdl != NULL
      vec_for_vertex (your_mdl.x, _ent, _ent.skill1); // set pos of saved vertexnr
      wait (1);
   }
   wait (1);
   ptr_remove (your_mdl);
}