12_pb_cu2 freeze rotation method

private void FreezeRotation(bool is_frozen)
    {
        if (is_frozen)
        {
            rigidBody.constraints = RigidbodyConstraints.FreezeRotationX | RigidbodyConstraints.FreezeRotationY | RigidbodyConstraints.FreezeRotationZ;
            print("Rotation is frozen"); // Using for debugging, you can delete this message freely
        }
        else
        {
            rigidBody.constraints = RigidbodyConstraints.FreezeRotationX | RigidbodyConstraints.FreezeRotationY;
            print("Rotation is unfrozen"); // Using for debugging, you can delete this message freely
        }
    }