99 lines
2.9 KiB
C#
99 lines
2.9 KiB
C#
using System;
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using System.Collections.Generic;
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namespace AibisDream
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{
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/// <summary>
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/// 从现有 TalkSceneSO 图派生的运行时索引，不引入第二份章节创作数据。
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/// </summary>
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public sealed class TalkSceneGraphIndex
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{
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private readonly List<TalkSceneSO> _runtimeChapters = new();
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private readonly Dictionary<string, TalkSceneSO> _byName = new(StringComparer.Ordinal);
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private readonly HashSet<string> _ambiguousNames = new(StringComparer.Ordinal);
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private readonly List<string> _validationErrors = new();
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public IReadOnlyList<TalkSceneSO> RuntimeChapters => _runtimeChapters;
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public IReadOnlyList<string> ValidationErrors => _validationErrors;
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public TalkSceneGraphIndex(TalkSceneSO firstTalkScene)
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{
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var visited = new HashSet<TalkSceneSO>();
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VisitRuntime(firstTalkScene, visited);
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}
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public bool TryFindByName(string sceneName, out TalkSceneSO scene, out string error)
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{
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scene = null;
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if (string.IsNullOrWhiteSpace(sceneName))
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{
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error = "TalkSceneSO name is empty.";
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return false;
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}
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if (_ambiguousNames.Contains(sceneName))
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{
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error = $"TalkSceneSO name is ambiguous: {sceneName}.";
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return false;
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}
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if (!_byName.TryGetValue(sceneName, out scene) || scene == null)
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{
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error = $"TalkSceneSO does not exist: {sceneName}.";
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return false;
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}
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error = null;
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return true;
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}
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private void VisitRuntime(TalkSceneSO scene, ISet<TalkSceneSO> visited)
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{
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if (scene == null || !visited.Add(scene))
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{
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return;
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}
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_runtimeChapters.Add(scene);
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IndexByName(scene);
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if (scene.exits == null)
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{
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return;
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}
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foreach (var exit in scene.exits)
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{
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VisitRuntime(exit?.targetScene, visited);
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}
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}
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private void IndexByName(TalkSceneSO scene)
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{
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if (scene == null)
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{
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return;
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}
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var sceneName = scene.name;
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if (string.IsNullOrWhiteSpace(sceneName))
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{
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_validationErrors.Add("TalkSceneSO has an empty asset name.");
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return;
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}
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if (_byName.TryGetValue(sceneName, out var existing))
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{
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if (existing != scene && _ambiguousNames.Add(sceneName))
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{
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_validationErrors.Add($"Duplicate TalkSceneSO name: {sceneName}.");
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}
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return;
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}
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_byName.Add(sceneName, scene);
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}
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}
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}
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