static Real get_thickness (Grob *me);
static void connect_beams (Grob *me);
- DECLARE_SCHEME_CALLBACK (rest_collision_callback, (SCM element, SCM axis));
+ DECLARE_SCHEME_CALLBACK (rest_collision_callback, (SCM element, SCM prev_off));
DECLARE_SCHEME_CALLBACK (print, (SCM));
DECLARE_SCHEME_CALLBACK (calc_direction, (SCM));
DECLARE_SCHEME_CALLBACK (calc_positions, (SCM));