void opendoor()
    {
        Quaternion targetrot = Quaternion.Euler(new Vector3 (0, 180, 0));
        door.transform.rotation = Quaternion.Lerp(door.transform.rotation, targetrot, time * Time.deltaTime);
        changedoorstate();
    }

    void closedoor()
    {
        Quaternion targetrot = Quaternion.Euler(new Vector3(0, 130, 0));
        door.transform.rotation = Quaternion.Lerp(door.transform.rotation, targetrot, time * Time.deltaTime);
        changedoorstate();
    }