Unity使用委托，事件

public class EventSender : MonoBehaviour {

//定义一个委托
public delegate void delGameOver();
//事件是委托的实例，该实例可在外部持有方法的引用
public event delGameOver GameOver;
private int score=0;
private bool isGameOver = false;

// Update is called once per frame
void Update () {
if (Input.GetKeyDown(KeyCode.Space))
{
score++;
}
if (score >= 5&&!isGameOver)
{
//发送游戏结束事件到各个类中
GameOver();
isGameOver = true;
}
}
}

public class EventListener : MonoBehaviour {

void Start () {
//监听该事件，事件启动则调用OnGameOver方法
GetComponent<EventSender>().GameOver += OnGameOver;
}

void OnGameOver()
{
Debug.Log("GameOver");
}

}