static VALUE rb_cpShapeGetSurfaceV(VALUE self) { return VWRAP(self, &SHAPE(self)->surface_v); }
static VALUE rb_cpBodyGetForce(VALUE self) { return VWRAP(self, &BODY(self)->f); }
static VALUE rb_cpBodyGetPos(VALUE self) { return VWRAP(self, &BODY(self)->p); }
static VALUE rb_cpBodyGetVel(VALUE self) { return VWRAP(self, &BODY(self)->v); }
static VALUE rb_cpBodyGetRot(VALUE self) { return VWRAP(self, &BODY(self)->rot); }