98 lines
3.1 KiB
C#
98 lines
3.1 KiB
C#
using System;
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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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namespace AibisDream
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{
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/// <summary>
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/// 文字速度设置的运行时快照与规范化规则。
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/// 各文字视图在开始新行时读取 CurrentMultiplier，确保设置不会改变正在播放的行。
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/// </summary>
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public static class TextSpeedSettings
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{
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public const float SlowMultiplier = 0.5f;
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public const float DefaultMultiplier = 1f;
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public const float FastMultiplier = 3f;
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public const string SlowValue = "0.5";
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public const string DefaultValue = "1.0";
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public const string FastValue = "3.0";
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private static readonly HashSet<string> WarnedInvalidValues = new(StringComparer.Ordinal);
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public static float CurrentMultiplier { get; private set; } = DefaultMultiplier;
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public static string CurrentCanonicalValue { get; private set; } = DefaultValue;
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public static void Reset()
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{
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CurrentMultiplier = DefaultMultiplier;
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CurrentCanonicalValue = DefaultValue;
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WarnedInvalidValues.Clear();
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}
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public static bool ApplyStoredValue(string value)
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{
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var isValid = TryNormalize(value, out var multiplier, out var canonicalValue);
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CurrentMultiplier = multiplier;
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CurrentCanonicalValue = canonicalValue;
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if (!isValid)
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{
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WarnInvalidValueOnce(value);
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}
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return isValid;
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}
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public static bool TryNormalize(string value, out float multiplier, out string canonicalValue)
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{
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multiplier = DefaultMultiplier;
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canonicalValue = DefaultValue;
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if (string.IsNullOrWhiteSpace(value) ||
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!float.TryParse(value, NumberStyles.Float, CultureInfo.InvariantCulture, out var parsed) ||
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float.IsNaN(parsed) ||
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float.IsInfinity(parsed))
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{
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return false;
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}
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if (Mathf.Approximately(parsed, SlowMultiplier))
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{
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multiplier = SlowMultiplier;
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canonicalValue = SlowValue;
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return true;
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}
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if (Mathf.Approximately(parsed, DefaultMultiplier))
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{
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multiplier = DefaultMultiplier;
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canonicalValue = DefaultValue;
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return true;
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}
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if (Mathf.Approximately(parsed, FastMultiplier))
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{
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multiplier = FastMultiplier;
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canonicalValue = FastValue;
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return true;
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}
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return false;
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}
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private static void WarnInvalidValueOnce(string value)
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{
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var warningKey = value ?? "<null>";
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if (!WarnedInvalidValues.Add(warningKey))
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{
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return;
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}
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Debug.LogWarning(
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$"[TextSpeedSettings] 不支持的文字速度 '{warningKey}'，本次运行使用默认值 {DefaultValue}。");
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}
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}
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}
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