public GameObject SnakeBody;
    private int c = 0;
    private int s = 0;
    private int i = 0;
    private List<GameObject> Tail = new List<GameObject>();

    void Start () {
  Tail.Clear ();
  for(int i = 0; i < 3; i++)AddTail();
    }

        //передвижение

    void Update () {
//головы
  i = PlayerPrefs.GetInt ("Click");
  if (i == 0) {
   transform.Translate (Time.deltaTime * PlayerPrefs.GetFloat ("Power"), 0f, 0f);
  } else if (i == 1) {
   transform.Translate (0f, Time.deltaTime * PlayerPrefs.GetFloat ("Power"), 0f);
  } else if (i == 2) {
   transform.Translate (-Time.deltaTime * PlayerPrefs.GetFloat ("Power"), 0f, 0f);
  } else if (i == 3) {
   transform.Translate (0f, -Time.deltaTime * PlayerPrefs.GetFloat ("Power"), 0f);
  } else if (i == -1) {
   transform.Translate (0f, 0f, 0f);
  }
//выз.хвост
  SnakeTailMove ();
    }

//передвижение хвоста
    public void SnakeTailMove(){
  if (Tail.Count > 0) {
   Tail [0].transform.position = this.transform.position;

   for (int i = Tail.Count - 1; i > 0; i--) {
    Tail [i].transform.position = Tail [i - 1].transform.position;

   }
  }
    }

//добавление хвоста
    public void AddTail(){
  Vector3 Position = transform.position;

  if (Tail.Count > 0) {
   Position = Tail [Tail.Count - 1].transform.position;
  }

  GameObject Body = Instantiate (SnakeBody, Position, Quaternion.identity) as GameObject;

  Tail.Add (Body);
    }