void bmx_body_slew(cpBody * body, cpVect * pos, cpFloat dt) {
cpBodySlew(body, *pos, dt);
}
// Intended for objects that are moved manually with a custom velocity integration function.
static VALUE
rb_cpBodySlew(VALUE self, VALUE pos, VALUE dt)
{
cpBodySlew(BODY(self), *VGET(pos), NUM2DBL(dt));
return self;
}