NAME
    DoCollision -- Test every gel in gel list for collisions.

SYNOPSIS
    DoCollision(rp)
                A1

    void DoCollision(struct RastPort *);

FUNCTION
    Tests each gel in gel list for boundary and gel-to-gel collisions.
    On detecting one of these collisions, the appropriate collision-
    handling routine is called. See the documentation for a thorough
    description of which collision routine is called. This routine
    expects to find the gel list correctly sorted in Y,X order.
    The system routine SortGList performs this function for the user.

INPUTS
    rp = pointer to a RastPort

RESULT

BUGS

SEE ALSO
    InitGels()  SortGList()  graphics/gels.h  graphics/gels.h