/** r1 is supposed to be moving, r2 a solid object */
void check_collisions(collision::Constraints* constraints,
const Vector& movement, const Rect& r1, const Rect& r2,
/** r1 is supposed to be moving, r2 a solid object */
void check_collisions(collision::Constraints* constraints,
const Vector& movement, const Rect& r1, const Rect& r2,