private void Start()
 {
     switcher = GetComponent <SceneSwitcher> ();
     mainMenu.onClick.AddListener(delegate(){ switcher.StartScene(); });
     retryButton.onClick.AddListener(delegate(){ switcher.GameScene(); });
     inputPanel.SetActive(true);
     leaderboardPanel.SetActive(false);
     yourScore.text = "Your score was: " + PlayerPrefs.GetInt("curScore");
 }