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

public class UI3DEventTrigger : MonoBehaviour
{
    public Action onClick;

    // Start is called before the first frame update
    void Start()
    {
        //给UI添加碰撞，防止自适应大小，等0.1s后再添加
        Invoke("AddUICollider", 0.1f);
        
    }

    // Update is called once per frame
    void Update()
    {
        
    }
    private void OnMouseDown()
    {
        onClick.Invoke();
    }

    /// <summary>
    /// 给UI添加碰撞体
    /// </summary>
    /// <param name="uiobj"></param>
    void AddUICollider()
    {
        if (!GetComponent<BoxCollider>())
        {
            gameObject.AddComponent<BoxCollider>();
            Vector2 pivot = GetComponent<RectTransform>().pivot;
            Vector3 center = new Vector3(GetComponent<RectTransform>().sizeDelta.x * (0.5f - pivot.x), GetComponent<RectTransform>().sizeDelta.x * (0.5f - pivot.y));
            GetComponent<BoxCollider>().size = GetComponent<RectTransform>().sizeDelta;
            GetComponent<BoxCollider>().center = center;
        }
    }

}