WaterFlush/Assets/Scripts/UI/Item/ZhaMenIcon.cs

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

public class ZhaMenIcon : MonoBehaviour
{
    public string targetName;
    private RectTransform rect;
    private Camera _camera;
    public Transform targetTransForm;

    public void Awake()
    {
        
        rect = this.GetComponent<RectTransform>();
        
        rect.anchoredPosition = new Vector2(2000, 0);
        _camera = ModelCameraCtrl._Instance._camera;

        GameObject[] targets = GameObject.FindGameObjectsWithTag("BuYuanZhaMen");
        for (int i = 0; i < targets.Length; i++)
        {
            if (targets[i].name.Equals(targetName))
            {
                targetTransForm=targets[i].transform;
                break;
            }
        }
    }

    void Update()
    {
        if (targetTransForm != null)
        {
            if (IsObjectInCameraView(targetTransForm, _camera))
            {
                rect.transform.position=_camera.WorldToScreenPoint(targetTransForm.position);
            }
            else
            {
                rect.transform.position = new Vector3(2000, 0, 0);
            }
        }
    }
    
    bool IsObjectInCameraView(Transform objectTransform, Camera camera)
    {
        Vector3 objectScreenPosition = camera.WorldToScreenPoint(objectTransform.position);
        return objectScreenPosition.z > 0 &&
               objectScreenPosition.x > 0 &&
               objectScreenPosition.x < Screen.width &&
               objectScreenPosition.y > 0 &&
               objectScreenPosition.y < Screen.height;
    }
}