[Unity] Event

using UnityEngine;
using System.Collections;

public class EventTrigger : MonoBehaviour {

    public delegate void EnterToOblivion();
    public static event EnterToOblivion OblivionEnter;

    void OnTriggerEnter()
    {
        if (OblivionEnter != null)
        {
            OblivionEnter ();
        }
    }
}


// somewhere in other script

using UnityEngine;
using System.Collections;

public class Oblivon : MonoBehaviour {

    void OnEnable()
    {
        EventTrigger.OblivionEnter += Die;
    }

    void CheatDeath()
    {
        EventTrigger.OblivionEnter -= Die;
    }

    void Die()
    {
        // you died xD
    }
}