116 lines
4.8 KiB
C#
116 lines
4.8 KiB
C#
using System.Collections.Generic;
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using Ichni.Story.Dialogue;
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using TMPro;
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using UnityEngine;
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using UnityEngine.UI;
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namespace Ichni.Story.UI
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{
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/// <summary>
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/// 文本块视图。点击后通过 Yarn Spinner 进入对应节点的对话。
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/// </summary>
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public class TextBlockView : StoryBlockView
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{
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[Header("Text Block")]
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public TMP_Text storyIdText;
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public TMP_Text titleText;
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[Tooltip("各状态对应的背景预制体。未配置 Forbidden 时会自动回退到 Locked 背景。")]
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public Dictionary<StoryBlockState, GameObject> blockVisuals = new Dictionary<StoryBlockState, GameObject>();
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/// <summary>该文本块对应的 Yarn 节点名。</summary>
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public string YarnNodeName { get; private set; }
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// 当前已实例化的状态背景对象；状态切换时销毁并替换
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private GameObject _currentVisual;
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public override void Initialize(StoryBlockDefinition def, Vector2 position, StoryBlockState blockState)
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{
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// 注意：base.Initialize 末尾会调用 ApplyState(state)，届时已生成对应背景
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YarnNodeName = def.yarnNodeName;
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base.Initialize(def, position, blockState);
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if (storyIdText != null)
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storyIdText.text = def.blockId;
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// 当前仍直接显示 titleKey；正式内容接入时需要由 Unity Localization 解析玩家可见标题。
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if (titleText != null)
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titleText.text = def.titleKey;
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}
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/// <summary>
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/// 应用状态：在基类逻辑（按钮可交互性）之外，切换到对应状态的背景视觉。
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/// </summary>
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public override void ApplyState(StoryBlockState newState)
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{
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base.ApplyState(newState);
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UpdateVisual(newState);
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}
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/// <summary>
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/// 按当前状态实例化对应的背景预制体，作为第一个子物体（位于文本/端口/按钮之下），
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/// 并拉伸铺满整个 block。状态切换时先销毁旧背景。
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/// </summary>
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private void UpdateVisual(StoryBlockState newState)
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{
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if (_currentVisual != null)
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{
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// 旧背景中的 Button 即将被销毁，先主动解绑，防止基类继续持有失效引用。
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BindInteractionButton(null);
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Destroy(_currentVisual);
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_currentVisual = null;
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}
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if (blockVisuals == null)
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{
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Debug.LogWarning($"[TextBlockView] block '{blockId}' 缺少状态 {newState} 的背景预制体（blockVisuals 未配置）。");
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return;
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}
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// Forbidden 专用美术尚未配置前沿用 Locked 背景，保证互斥路线 Block 始终可见且不可点击。
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// 后续只需在 Inspector 中补充 Forbidden 键，即可自动覆盖此回退表现。
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if ((!blockVisuals.TryGetValue(newState, out GameObject prefab) || prefab == null) &&
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newState == StoryBlockState.Forbidden)
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{
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blockVisuals.TryGetValue(StoryBlockState.Locked, out prefab);
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}
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if (prefab == null)
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{
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Debug.LogWarning($"[TextBlockView] block '{blockId}' 缺少状态 {newState} 的背景预制体。");
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return;
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}
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_currentVisual = Instantiate(prefab, blockRect);
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_currentVisual.transform.SetAsFirstSibling();
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// 状态视觉可自由调整层级；不再依赖“第一个子物体就是 Button”的脆弱约定。
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// 通过基类重新绑定，确保每一次状态背景替换后 TextBlock 仍能响应点击。
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Button interactionButton = _currentVisual.GetComponentInChildren<Button>(true);
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if (interactionButton == null)
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Debug.LogWarning($"[TextBlockView] block '{blockId}' 的状态视觉 '{prefab.name}' 缺少 Button，无法点击。");
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BindInteractionButton(interactionButton);
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// 背景铺满整个 block
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if (_currentVisual.transform is RectTransform visualRect)
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{
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visualRect.anchorMin = Vector2.zero;
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visualRect.anchorMax = Vector2.one;
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visualRect.offsetMin = Vector2.zero;
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visualRect.offsetMax = Vector2.zero;
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visualRect.localScale = Vector3.one;
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}
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}
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protected override void OnClicked()
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{
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if (StoryDialogueController.instance == null)
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{
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Debug.LogWarning($"[TextBlockView] 场景中缺少 StoryDialogueController，无法播放 block '{blockId}' 的对话。");
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return;
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}
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StoryDialogueController.instance.PlayBlock(this);
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}
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}
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}
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