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

using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Events;
using UnityEngine.EventSystems;
using UnityEngine.UI;
using UnityEngine.UIElements;

public class ZhaMenIconCtrl : MonoBehaviour, IPointerEnterHandler, IPointerExitHandler
{
    private RectTransform rect;
    private Camera _camera;

    private UnityEngine.UI.Button _button;
    public FloodGate _data;
    public Transform targetTransForm;

    public GameObject tint;

    public Text tintName;

    public void Init(FloodGate data,string name,GameObject targetObj,UnityAction clickAction)
    {
        _data = data;
        tintName.text = name;


        rect = this.GetComponent<RectTransform>();
        _button = this.transform.Find("Icon").GetComponent<UnityEngine.UI.Button>();


        _button.onClick.AddListener(
            clickAction
        );


        rect.anchoredPosition = new Vector2(2000, 0);
        _camera = CameraManager.instance.mainCamera;

        targetTransForm = targetObj.transform;
    }

    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;
    }

    public void OnPointerEnter(PointerEventData eventData)
    {
        tint.gameObject.SetActive(true);
        LayoutRebuilder.ForceRebuildLayoutImmediate(tintName.GetComponent<RectTransform>()); // 强制重新计算布局
        LayoutRebuilder.ForceRebuildLayoutImmediate(tint.GetComponent<RectTransform>()); // 强制重新计算布局
    }

    public void OnPointerExit(PointerEventData eventData)
    {
        tint.gameObject.SetActive(false);
    }
}