NAME
    SortGList -- Sort the current gel list, ordering its y,x coordinates.
SYNOPSIS
    SortGList(rp)
              A1
    void SortGList(struct RastPort *);
FUNCTION
    Sorts the current gel list according to the gels' y,x coordinates.
    This sorting is essential before calls to DrawGList or DoCollision.
INPUTS
    rp = pointer to the RastPort structure containing the GelsInfo
RESULT
BUGS
SEE ALSO
    InitGels()  DoCollision()  DrawGList()  graphics/rastport.h