seperateRooms()
{
    // this adds the temporary rigidbody
    foreach (GameObject room in rooms)
    {
        room.AddComponent<Rigidbody>();
        room.GetComponent<Rigidbody>().isKinematic = true;
        room.GetComponent<Rigidbody>().useGravity = false;
    }

     for(int i = rooms.Count-1; i > 0; i--)
     {
        GameObject room = (GameObject)rooms[i];
        Rigidbody rb = room.GetComponent<Rigidbody>();
        rb.isKinematic = false;
        rb.constraints = RigidbodyConstraints.FreezeRotation | RigidbodyConstraints.FreezePositionY;

        while (!(rb.IsSleeping()))
        {
            rb.MovePosition(room.transform.position + room.transform.forward * Time.deltaTime);
        }

        rb.isKinematic = true;
    }

    foreach (GameObject room in rooms)
    {
        Destroy(room.GetComponent<Rigidbody>());
    }
}