120 lines
4.3 KiB
C#
120 lines
4.3 KiB
C#
using UnityEngine;
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using TMPro;
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using Logic.Event;
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using System;
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namespace UI.HintUI
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{
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public class HintUI
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{
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// 视图引用
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private readonly GameObject ROHintWindow;
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private readonly RectTransform _rectTransform;
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private TextMeshProUGUI _hintTextComponent;
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// 【新增】缓存根Canvas的引用，用于坐标转换
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private readonly Canvas _rootCanvas;
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// 缓存委托以用于取消订阅
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private readonly Action<ShowHintEvent> _onShowHintAction;
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private readonly Action<HideHintEvent> _onHideHintAction;
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public HintUI(GameObject hintWindowRoot)
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{
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if (hintWindowRoot == null)
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{
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Debug.LogError("HintWindowUI的构造函数收到了一个空的GameObject引用！");
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return;
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}
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this.ROHintWindow = hintWindowRoot;
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this._rectTransform = ROHintWindow.GetComponent<RectTransform>();
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// 【新增】获取UI所在的根Canvas
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// 这是坐标转换所必需的上下文环境
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this._rootCanvas = ROHintWindow.GetComponentInParent<Canvas>();
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if (this._rootCanvas == null)
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{
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Debug.LogError("在HintWindow的父级中找不到Canvas组件！坐标转换将失败。", ROHintWindow);
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}
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// 缓存Action委托
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_onShowHintAction = OnShowHint;
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_onHideHintAction = OnHideHint;
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init();
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}
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private void init()
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{
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Transform textTransform = ROHintWindow.transform.Find("Text");
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if (textTransform != null)
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{
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_hintTextComponent = textTransform.GetComponent<TextMeshProUGUI>();
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}
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if (_hintTextComponent == null)
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{
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Debug.LogError("在ROHintWindow下未能找到路径 'Text' 或其上的TextMeshProUGUI组件！", ROHintWindow);
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return;
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}
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EventManager.Subscribe(_onShowHintAction);
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EventManager.Subscribe(_onHideHintAction);
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ROHintWindow.SetActive(false);
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}
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public void Dispose()
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{
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EventManager.Unsubscribe(_onShowHintAction);
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EventManager.Unsubscribe(_onHideHintAction);
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}
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// --- 事件处理方法 (核心修改点) ---
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private void OnShowHint(ShowHintEvent e)
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{
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// 基础的有效性检查
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if (ROHintWindow == null || _hintTextComponent == null || _rectTransform == null || e.DataProvider == null)
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{
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ROHintWindow.SetActive(false);
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return;
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}
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string textToShow = e.DataProvider.GetHintText();
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if (string.IsNullOrEmpty(textToShow))
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{
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ROHintWindow.SetActive(false);
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return;
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}
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// --- 【核心修改逻辑】从这里开始 ---
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ROHintWindow.SetActive(true);
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_hintTextComponent.text = textToShow;
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// 1. 调用坐标转换工具
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// 参数1: 我们要把坐标转换到哪个RectTransform内部，这里是Hint窗口的父级。
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// 参数2: 屏幕坐标点，从事件中传来 (它已经包含了您在HintTrigger里设置的offset)。
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// 参数3: 当前Canvas使用的渲染相机。对于ScreenSpace-Overlay模式，这个为null，函数能正确处理。
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// 参数4: 输出转换后的局部坐标。
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RectTransformUtility.ScreenPointToLocalPointInRectangle(
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_rectTransform.parent as RectTransform,
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e.Position,
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_rootCanvas.worldCamera,
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out Vector2 localPoint
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);
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// 2. 将计算出的局部坐标赋值给localPosition
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_rectTransform.localPosition = localPoint;
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// --- 核心修改逻辑结束 ---
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_rectTransform.SetAsLastSibling();
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}
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private void OnHideHint(HideHintEvent e)
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{
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if (ROHintWindow == null) return;
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ROHintWindow.SetActive(false);
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}
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}
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}
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