关于EventTrigger的代码添加

最新推荐文章于 2025-05-07 18:42:57 发布

原创最新推荐文章于 2025-05-07 18:42:57 发布 · 705 阅读

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本文介绍了一个在Unity中用于简化事件触发监听器添加过程的静态类AddTriggersListener。该类提供了一个公共委托和静态方法，允许用户通过传入GameObject、事件类型和回调方法来轻松地为游戏对象添加事件监听器，特别适用于PointerClick事件。

封装

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.EventSystems;
using UnityEngine.Events;

public static class AddTriggersListener  {
   
    public  delegate void MyMehod(BaseEventData pd);
    public static void addTriggersListener(GameObject obj, EventTriggerType eventTriggerType, MyMehod myMehod)
    {
        EventTrigger ET =obj. GetComponent<EventTrigger>();
        if (ET == null)
        {
            ET = obj.AddComponent<EventTrigger>();
        }
        if (ET.triggers.Count == 0)
        {
            ET.triggers = new List<EventTrigger.Entry>();
        }

        UnityAction<BaseEventData> callBack = new UnityAction<BaseEventData>(myMehod);
        EventTrigger.Entry entry = new EventTrigger.Entry();
        entry.eventID = eventTriggerType;
        entry.callback.AddListener(callBack);

        ET.triggers.Add(entry);
    }

}

调用

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

public class EnvironmentClick : MonoBehaviour
{
    private void Awake()
    {
        AddTriggersListener.addTriggersListener(this.gameObject, EventTriggerType.PointerClick, OnClick);
    }
    private void Start()
    {
        
    }
    public void OnClick(BaseEventData data)
    {
        if (Input.GetMouseButton(1)) return;
        if (Input.GetMouseButton(2)) return;

        Debug.Log("s");

    }

}