public class MoverShip01 : MonoBehaviour {

    //boundary lo utilizo para establecer limites de movimiento en la Ship01
    public Boundary boundary;
    public float speed;
    [Header("move left and right")]
    public float dodge;
    public float smothing;
    public Vector2 moveTime;
    public Vector2 moveWait;
    public Vector2 startWait;
    private float targetMove;
    // el giro sobre el eje Z que hara la nave
    public float tilt;
    //private bool stopShip1 = false;
    private Rigidbody rig;


    private void Awake()
    {
        rig = GetComponent<Rigidbody>();
    }
    // Use this for initialization
    void Start () {
        rig.velocity = transform.forward * speed;
        Vector3 positionShip = new Vector3(7.1f, rig.position.y, rig.position.z);


    }

    // Update is called once per frame
    void Update () {
        if (rig.position.z < 7.2)
        {
             stopShip();
            //Debug.Log("velocity: " +speed);
        }
    }

    private void FixedUpdate()
    {
        if (stopShip() == true)
        {
            targetMove = rig.position.x <= 0 ? 1 : -1;
            if (targetMove == 1)
            {
                while (rig.position.x <= 6.50)
                {
                    Vector3 movement = new Vector3(1 * speed, 0f, 0f);
                    rig.velocity = movement;
                    rig.rotation = Quaternion.Euler(0f, 0f, rig.velocity.x * -tilt);
                    Debug.Log(rig.position.x);
                }
                stopShip();
            }
            else if (targetMove == -1)
            {
                while (rig.position.x >= -6.50)
                {
                    Vector3 movement = new Vector3(-1 * speed, 0f, 0f);
                    rig.velocity = movement;
                    rig.rotation = Quaternion.Euler(0f, 0f, rig.velocity.x * -tilt);
                    Debug.Log(rig.position.x);
                }
                stopShip();
            }
        }


    }

    private bool stopShip()
    {
        //rig.isKinematic = true;
        rig.velocity = Vector3.zero;
        transform.rotation = Quaternion.identity;
        return true;
    }
}