public void GenerateFruitRain()
    {
        _randomPrefab = Random.Range(0, 3);
        _startPos = new Vector2 (Random.Range (xMin, xMax), Random.Range (yMin, yMax));
        GameObject enemy = Instantiate(fruitPrefabs[_randomPrefab], _startPos,Quaternion.identity);
        enemy.transform.SetParent (GameObject.FindGameObjectWithTag("FanObject").transform, false);
        if (_isRun)
        {
            enemy.GetComponent<Rigidbody2D>().AddForce(enemy.transform.right * _speedFan);
        }
    }