public class Observer : MonoBehaviour {

    #region Singletone
    private static Observer _instance;
    public static Observer Instance
    {
        get
        {
            if (!_instance)
            {
                _instance = FindObjectOfType(typeof(Observer)) as Observer;
                if (_instance == null)
                {
                    Debug.Log("Error!");
                }
            }
            return _instance;
        }
    }
    #endregion

    public delegate void GivePoints(int value);
    public static event GivePoints OnGivePoints;

}