unity RawImage ui的鼠标事件处理、日志打印、纹理更换,进入其他场景_raw image触发点击事件

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
 
//using UnityEngine.Events;
//using UnityEngine.EventSystems;
using UnityEngine.UI;
using UnityEngine.Events;
using UnityEngine.EventSystems;
 
public class menu_start : MonoBehaviour, IPointerEnterHandler, IPointerExitHandler, IPointerDownHandler
{
 
 
    public AudioClip audioClip;
 
    private AudioSource audioPlayer;
 
    public Texture2D texture_enter;
    public Texture2D texture_exit;
    private RawImage rawImage;
    // Start is called before the first frame update
    void Start()
    {
        audioPlayer = GetComponent<AudioSource>();
        rawImage = GetComponent<RawImage>();
    }
 
    // Update is called once per frame
    void Update()
    {
       
 
    }
 
    void IPointerEnterHandler.OnPointerEnter(PointerEventData eventData) {
        Debug.Log("EventTriggerTest OnPointerEnter");
        playAudio();
        rawImage.texture = texture_enter;
 
    }
    void IPointerExitHandler.OnPointerExit(PointerEventData eventData)
    {
        Debug.Log("EventTriggerTest OnPointerExit");
        //playAudio();
        rawImage.texture = texture_exit;
 
    }
 
    void IPointerDownHandler.OnPointerDown(PointerEventData eventData)
    {
        Debug.Log("EventTriggerTest OnPointerDown");
 
        if (gameObject.tag == "menu_play")
        {
            Debug.Log("EventTriggerTest menu_play");
            StartCoroutine(toMain());
 
        }
        else if (gameObject.tag == "menu_introduce")
        {
            Debug.Log("EventTriggerTest menu_introduce");
            StartCoroutine(toIntroduce());
 
 
        }
        else if (gameObject.tag == "menu_quit") {
            Debug.Log("EventTriggerTest menu_quit");
            StartCoroutine(quit());
        }
 
        playAudio();
    }
 
    void playAudio() {
        audioPlayer.clip = audioClip;
        audioPlayer.Play();
    }
 
    IEnumerator quit()
    {
 
        yield return new WaitForSeconds(1.0f);
 
        Application.Quit();
    }
 
    IEnumerator toMain()
    {
 
        yield return new WaitForSeconds(1.0f);
 
        Application.LoadLevel("SceneMain");
    }
    IEnumerator toIntroduce()
    {
 
        yield return new WaitForSeconds(1.0f);
 
        Application.LoadLevel("SceneIntroduce");
    }
}