public void MoveAnim()
    {
        float waitedTime = 0;
        // if it is not in the destination, keep moving
        while (this.transform.position != _destination.transform.position)
        {
            waitedTime += Time.deltaTime;
            transform.position = Vector3.MoveTowards(transform.position, _destination.transform.position, speed);
        }
        currentPos = _destination;
    }