private void OnTriggerEnter2D(Collider2D collision)
 {
     if (collision.gameObject.tag == "red")
     {
         PlayerPrefs.SetInt("Score", PlayerPrefs.GetInt("Score") + 1);
         collision.gameObject.tag = "v";
     }
     if (collision.gameObject.tag == "green")
     {
         PlayerPrefs.SetInt("Score", PlayerPrefs.GetInt("Score") - 1);
         collision.gameObject.tag = "v";
     }
     if (PlayerPrefs.GetInt("Score") < 0)
     {
         PlayerPrefs.SetInt("Score", 0);
     }
     script = GetComponent <Destroy>();
     script.Setup(collision.gameObject);
 }