NAME
        SetCollision -- Set a pointer to a user collision routine.

   SYNOPSIS
        SetCollision(num, routine, GInfo)
                     D0   A0       A1

        void SetCollision(ULONG, VOID (*)(), struct gelsinfo *);

   FUNCTION
        Sets a specified entry (num) in the user's collision vectors table
        equal to the address of the specified collision routine.

   INPUTS
        num     = collision vector number
        routine = pointer to the user's collision routine
        GInfo   = pointer to a gelsinfo structure

   RESULT

   BUGS

   SEE ALSO
        initgels()  graphics/gels.h  graphics/rastport.h