[SerializeField]
    private Vector2 range = new Vector2(-20,20);
    [SerializeField]
    private float moveSpeed = 5f;
    [SerializeField]
    private float rotateSpeed = 5f;
    [SerializeField]
    private Vector3 position;

    private void Awake()
    {
        GetPosition(range);
    }

    private void Update()
    {
        Move();
    }

    private Vector3 GetPosition(Vector2 range)
    {
        Vector3 tempPos = new Vector3(0,0,0);
        tempPos.x = RandomNumber(transform.position.x,range);
        tempPos.z = RandomNumber(transform.position.z,range);

        return tempPos;
    }

    private float RandomNumber(float origin,Vector2 range)
    {
        return Random.Range(range.x,range.y) + origin;
    }

    private void Move()
    {
        if(Vector3.Distance(transform.position,position) < 1)
        {
            position = GetPosition(range);
        }
        else
        {
            transform.LookAt(position);
            transform.position = Vector3.MoveTowards(transform.position,position,moveSpeed*Time.deltaTime);
            transform.rotation = Quaternion.Slerp(transform.rotation,Quaternion.Euler(position),rotateSpeed*Time.deltaTime);
        }
    }