- static void add_rod (Grob*me, Grob * to, Real distance);
- static void add_spring (Grob*me,Grob * to, Real dist, Real strength, bool);
+ static void add_rod (Grob *me, Grob *to, Real distance);
+ static void add_spring (Grob *me, Grob *to, Real dist, Real strength);
+ static void get_spring (Grob *me, Grob *other, Real *dist, Real *inv_strength);