UI跟随3D对象

Posted 2022-12-15 那个妹子留步

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.EventSystems;
using Core.UI;
using Game.UI;
using UnityEngine.UI;

public class UIFollowObj : MonoBehaviour

    public GameObject FallowObj = null;
    public  bool isEnableFallow = true;
    public bool AllowXFollow = true;
    public bool AllowYFollow = true;
    public Camera WorldCamera;
    public Camera UICamera;
    public RectTransform Rectangle;

    private Vector3 OffsetWorldV3 = Vector3.zero;
    public  void SetOffset(float x,float y,float z)
    
        OffsetWorldV3.x = x;
        OffsetWorldV3.y = y;
        OffsetWorldV3.z = z;
    

    void Update()
    
        if (!isEnableFallow || WorldCamera == null|| UICamera == null)
            return;
        if (FallowObj != null)
        
            Vector3 screenPos = WorldCamera.WorldToScreenPoint(FallowObj.transform.position+ OffsetWorldV3);
            Vector2 localPos;
            if (RectTransformUtility.ScreenPointToLocalPointInRectangle(Rectangle, screenPos, UICamera, out localPos))
            
                transform.localPosition = localPos;
            
        
    

    protected  void OnDestroy()
    

        FallowObj = null;
    

    public void SetFallowObject(GameObject obj)
    
        FallowObj = obj;
    

    public void EnableFallow(bool bVal)
    
        isEnableFallow = bVal;