3DUI实现NPC商城UI交互

1.创建3DUI

3DUI 需要创建新画布 画布模式改为worldSpace,并且指定摄像机

那个摄像机将来会看这个UI就把谁挂进去，并且3D画布下面的UI按钮需要被电击的话就需要摄像机身上必须挂在Physics Raycaster组件

2.创建侦听脚本给NPC，实现鼠标划入和离开还有点击事件

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

public class ModelInterFaceLine : MonoBehaviour, IPointerEnterHandler, IPointerExitHandler, IPointerClickHandler
{

    GameObject Inven3D;
    void Start()
    {
        Inven3D= GameObject.FindWithTag("INVEN3D_UI");
        Inven3D.SetActive(false);
        this.gameObject.transform.GetChild(0).gameObject.SetActive(false);

    }
    public void OnPointerClick(PointerEventData eventData)
    {
        Debug.Log("点击了我");
        if (Inven3D!=null)
        {
            Inven3D.SetActive(true);
        }
        
        
    }

    public void OnPointerEnter(PointerEventData eventData)
    {

        this.gameObject.transform.AddComponent<Outline>();
        this.gameObject.transform.GetChild(0).gameObject.SetActive(true);

    }

    public void OnPointerExit(PointerEventData eventData)
    {
        Destroy(this.gameObject.GetComponent<Outline>());
        this.gameObject.transform.GetChild(0).gameObject.SetActive(false);
    }
}