-vector vec_bounds_in (vector point, vector a, vector b);
-vector vec_bounds_out (vector point, vector a, vector b);
-
-float angle_snap_f (float f, float increment);
-vector angle_snap_vec (vector v, float increment);
-
-vector aim_vec (vector origin, vector target);
+ERASEABLE
+vector vec_bounds_in(vector point, vector a, vector b);
+ERASEABLE
+vector vec_bounds_out(vector point, vector a, vector b);
+
+ERASEABLE
+float angle_snap_f(float f, float increment);
+ERASEABLE
+vector angle_snap_vec(vector v, float increment);
+
+ERASEABLE
+vector aim_vec(vector org, vector targ);