yichael_smartbow/Assets/BowArrow/Scripts/GameChallenge/ChallengeTargetCanvas.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

/*
闯关场景专用靶子Canvas
需求：在打猎游戏里，一开始屏幕中央给一个靶子（类似静止靶界面让玩家一开始视角校准用的）
*/
public class ChallengeTargetCanvas : MonoBehaviour
{
    void Start()
    {
        transform.Find("RawImage").gameObject.SetActive(true);
        GameEventCenter.ins.onBowArrowShootOut += Event_OnBowArrowShootOut;       
    }

    void Event_OnBowArrowShootOut(ArmBow a, Arrow b) {
        GameEventCenter.ins.onBowArrowShootOut -= Event_OnBowArrowShootOut;
        Destroy(gameObject);
    }
}