Storyline+Dialog初步
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SoulliesOfficial
207
Assets/Scripts/NewStorySystem/Dialogue/StoryVariableStorage.cs
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207
Assets/Scripts/NewStorySystem/Dialogue/StoryVariableStorage.cs
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using System.Collections.Generic;
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using System.Globalization;
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using UnityEngine;
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using Yarn.Unity;
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namespace Ichni.Story.Dialogue
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{
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/// <summary>
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/// 自定义 Yarn 变量存储。直接读写 <see cref="StorySaveModule.variables"/>（全局剧情变量），
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/// 让 Yarn 对话中的 <c><<set $var to ...>></c> 与故事树解锁条件共享同一份数据来源，
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/// 并借助存档模块的 ES3 序列化持久化。
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/// <para>变量名沿用 Yarn 约定（带 <c>$</c> 前缀）；解锁条件中的变量名也应保持一致。</para>
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/// </summary>
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public class StoryVariableStorage : VariableStorageBehaviour
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{
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// GameSaveManager 尚未就绪（编辑器早期 / 场景未初始化）时的兜底容器
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private readonly StoryVariablesSave _fallback = new StoryVariablesSave();
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/// <summary>当前生效的变量容器：优先取存档模块，缺失时用本地兜底容器。</summary>
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private StoryVariablesSave Variables
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{
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get
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{
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if (GameSaveManager.instance != null && GameSaveManager.instance.StorySaveModule != null)
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return GameSaveManager.instance.StorySaveModule.variables;
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return _fallback;
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}
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}
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// ── IVariableStorage 实现 ────────────────────────────────────────────────
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public override bool TryGetValue<T>(string variableName, out T result)
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{
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StoryVariablesSave vars = Variables;
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if (vars.floatVariables.TryGetValue(variableName, out float f))
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return TryConvert(f, out result);
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if (vars.boolVariables.TryGetValue(variableName, out bool b))
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return TryConvert(b, out result);
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if (vars.stringVariables.TryGetValue(variableName, out string s))
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return TryConvert(s, out result);
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result = default;
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return false;
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}
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public override void SetValue(string variableName, string stringValue)
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{
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RemoveStaleEntries(variableName, keepFloat: false, keepString: true, keepBool: false);
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Variables.stringVariables[variableName] = stringValue;
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NotifyVariableChanged(variableName, stringValue);
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}
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public override void SetValue(string variableName, float floatValue)
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{
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RemoveStaleEntries(variableName, keepFloat: true, keepString: false, keepBool: false);
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Variables.floatVariables[variableName] = floatValue;
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NotifyVariableChanged(variableName, floatValue);
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}
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public override void SetValue(string variableName, bool boolValue)
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{
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RemoveStaleEntries(variableName, keepFloat: false, keepString: false, keepBool: true);
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Variables.boolVariables[variableName] = boolValue;
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NotifyVariableChanged(variableName, boolValue);
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}
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public override bool Contains(string variableName)
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{
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StoryVariablesSave vars = Variables;
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return vars.floatVariables.ContainsKey(variableName)
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|| vars.boolVariables.ContainsKey(variableName)
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|| vars.stringVariables.ContainsKey(variableName);
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}
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public override void Clear()
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{
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StoryVariablesSave vars = Variables;
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vars.floatVariables.Clear();
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vars.stringVariables.Clear();
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vars.boolVariables.Clear();
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}
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public override void SetAllVariables(
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Dictionary<string, float> floats,
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Dictionary<string, string> strings,
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Dictionary<string, bool> bools,
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bool clear = true)
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{
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StoryVariablesSave vars = Variables;
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if (clear)
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{
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vars.floatVariables.Clear();
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vars.stringVariables.Clear();
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vars.boolVariables.Clear();
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}
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if (floats != null)
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foreach (KeyValuePair<string, float> kv in floats) vars.floatVariables[kv.Key] = kv.Value;
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if (strings != null)
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foreach (KeyValuePair<string, string> kv in strings) vars.stringVariables[kv.Key] = kv.Value;
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if (bools != null)
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foreach (KeyValuePair<string, bool> kv in bools) vars.boolVariables[kv.Key] = kv.Value;
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}
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public override (Dictionary<string, float> FloatVariables,
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Dictionary<string, string> StringVariables,
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Dictionary<string, bool> BoolVariables) GetAllVariables()
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{
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StoryVariablesSave vars = Variables;
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return (
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new Dictionary<string, float>(vars.floatVariables),
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new Dictionary<string, string>(vars.stringVariables),
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new Dictionary<string, bool>(vars.boolVariables)
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);
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}
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// ── 供故事树解锁条件复用的便捷读取 ────────────────────────────────────────
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/// <summary>读取变量的整数近似值（float 四舍五入、bool 取 0/1）；不存在返回 0。</summary>
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public int GetIntVariable(string variableName)
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{
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StoryVariablesSave vars = Variables;
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if (vars.floatVariables.TryGetValue(variableName, out float f))
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return Mathf.RoundToInt(f);
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if (vars.boolVariables.TryGetValue(variableName, out bool b))
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return b ? 1 : 0;
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return 0;
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}
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/// <summary>该变量是否存在于任一类型的存储中。</summary>
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public bool HasVariable(string variableName) => Contains(variableName);
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// ── 内部 ────────────────────────────────────────────────────────────────
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// 当变量被重新赋值为其它类型时，从旧类型字典移除，避免同名变量残留多份
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private void RemoveStaleEntries(string name, bool keepFloat, bool keepString, bool keepBool)
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{
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StoryVariablesSave vars = Variables;
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if (!keepFloat) vars.floatVariables.Remove(name);
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if (!keepString) vars.stringVariables.Remove(name);
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if (!keepBool) vars.boolVariables.Remove(name);
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}
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// 将存储中的原始值转换为 Yarn 请求的类型（float / bool / string / int 之间互转）
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private static bool TryConvert<T>(object value, out T result)
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{
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if (value is T typed)
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{
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result = typed;
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return true;
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}
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try
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{
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if (typeof(T) == typeof(float) || typeof(T) == typeof(double) || typeof(T) == typeof(int))
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{
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float f = value switch
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{
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float fv => fv,
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bool bv => bv ? 1f : 0f,
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string sv => float.TryParse(sv, NumberStyles.Any, CultureInfo.InvariantCulture, out float p) ? p : 0f,
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_ => 0f
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};
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result = (T)System.Convert.ChangeType(f, typeof(T), CultureInfo.InvariantCulture);
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return true;
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}
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if (typeof(T) == typeof(bool))
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{
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bool b = value switch
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{
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bool bv => bv,
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float fv => fv != 0f,
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string sv => bool.TryParse(sv, out bool p) && p,
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_ => false
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};
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result = (T)(object)b;
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return true;
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}
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if (typeof(T) == typeof(string))
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{
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string s = value switch
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{
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string sv => sv,
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float fv => fv.ToString(CultureInfo.InvariantCulture),
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bool bv => bv.ToString(),
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_ => value != null ? value.ToString() : string.Empty
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};
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result = (T)(object)s;
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return true;
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}
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}
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catch
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{
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// 转换失败时落到下方失败分支
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}
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result = default;
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return false;
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}
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}
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}
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