剧情+对话完善

Assets/Scripts/NewStorySystem/UI/DialogueHistoryPage.cs

@@ -0,0 +1,87 @@
+using System.Collections.Generic;
+using Ichni.Story.Dialogue;
+using UnityEngine;
+using UnityEngine.UI;
+
+namespace Ichni.Story.UI
+{
+    /// <summary>
+    /// 对话记录覆盖面板。
+    /// <para>它不是独立 UIPage：打开时覆盖在 DialogUIPage 上方，并由全屏 Raycast Target 阻断底层输入；
+    /// 关闭后仅恢复对话画面，不推进 Yarn 对话。</para>
+    /// </summary>
+    public class DialogueHistoryPage : MonoBehaviour
+    {
+        [Header("References")]
+        [Tooltip("覆盖全屏的 CanvasGroup。根物体应位于 DialogCanvas 顶层，并包含可接收 Raycast 的全屏透明 Image。")]
+        [SerializeField] private CanvasGroup canvasGroup;
+        [SerializeField] private ScrollRect scrollRect;
+        [SerializeField] private RectTransform entryContainer;
+        [SerializeField] private DialogueHistoryEntryView entryPrefab;
+        [SerializeField] private Button closeButton;
+
+        /// <summary>当前覆盖层是否正在显示并拦截 DialogUIPage 输入。</summary>
+        public bool IsOpen => _isOpen;
+
+        private readonly List<DialogueHistoryEntryView> _spawnedEntries = new();
+        private bool _isOpen;
+
+        private void Awake()
+        {
+            if (closeButton != null)
+                closeButton.onClick.AddListener(Close);
+
+            SetVisible(false);
+        }
+
+        private void OnDestroy()
+        {
+            if (closeButton != null)
+                closeButton.onClick.RemoveListener(Close);
+        }
+
+        /// <summary>以当前一次 TextBlock 对话的内存记录刷新并打开覆盖面板。</summary>
+        public void Open(IReadOnlyList<DialogueHistoryEntry> entries)
+        {
+            RebuildEntries(entries);
+            SetVisible(true);
+            Canvas.ForceUpdateCanvases();
+
+            // 记录按时间从上到下排列；打开后停在最早一条，玩家可向下浏览最新内容。
+            if (scrollRect != null)
+                scrollRect.verticalNormalizedPosition = 1f;
+        }
+
+        /// <summary>关闭覆盖面板，不修改当前 Yarn 进度或选项状态。</summary>
+        public void Close() => SetVisible(false);
+
+        private void RebuildEntries(IReadOnlyList<DialogueHistoryEntry> entries)
+        {
+            foreach (DialogueHistoryEntryView view in _spawnedEntries)
+                if (view != null)
+                    Destroy(view.gameObject);
+            _spawnedEntries.Clear();
+
+            if (entries == null || entryPrefab == null || entryContainer == null)
+                return;
+
+            foreach (DialogueHistoryEntry entry in entries)
+            {
+                DialogueHistoryEntryView view = Instantiate(entryPrefab, entryContainer);
+                view.SetUp(entry);
+                _spawnedEntries.Add(view);
+            }
+        }
+
+        private void SetVisible(bool visible)
+        {
+            _isOpen = visible;
+            if (canvasGroup == null)
+                return;
+
+            canvasGroup.alpha = visible ? 1f : 0f;
+            canvasGroup.interactable = visible;
+            canvasGroup.blocksRaycasts = visible;
+        }
+    }
+}