public IsoContactPoint(ContactPoint contact_point) : this()
 {
     normal        = contact_point.normal;
     otherCollider = IsoPhysicsUtils.IsoConvertCollider(contact_point.otherCollider);
     point         = contact_point.point;
     separation    = contact_point.separation;
     thisCollider  = IsoPhysicsUtils.IsoConvertCollider(contact_point.thisCollider);
 }
 public static void IgnoreCollision(IsoCollider iso_collider1, IsoCollider iso_collider2,
                                    bool ignore = true)
 {
     UnityEngine.Physics.IgnoreCollision(
         iso_collider1.realCollider, iso_collider2.realCollider, ignore);
 }