45 lines
2.0 KiB
C#
45 lines
2.0 KiB
C#
using System;
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namespace HotUpdate.UI
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{
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/// <summary>编辑器生成与运行时加载共用的目录约定。</summary>
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public static class UiAtlasPaths
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{
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public const string TextureRoot = "Assets/Bundles/UI/Texture";
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public const string AtlasRoot = "Assets/Bundles/UI/Atlas";
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public const string AtlasNamePrefix = "UI_";
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public static bool IsTexturePath(string path)
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{
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return path != null && path.Replace('\\', '/').StartsWith(TextureRoot + "/", StringComparison.Ordinal);
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}
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public static string GetAtlasName(string relativeFolder)
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{
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if (relativeFolder == null) throw new ArgumentNullException(nameof(relativeFolder));
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relativeFolder = relativeFolder.Replace('\\', '/').Trim('/');
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if (relativeFolder.Length == 0) return AtlasNamePrefix + "__RootAtlas";
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foreach (string segment in relativeFolder.Split('/'))
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if (segment.Length == 0 || segment == "." || segment == "..")
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throw new ArgumentException("Invalid UI texture folder: " + relativeFolder);
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// 转义下划线与路径分隔符，避免 A/B 与 A_B 生成同名图集。
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return AtlasNamePrefix + relativeFolder.Replace("_", "_u").Replace("/", "_s") + "Atlas";
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}
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public static string GetAtlasPath(string relativeFolder)
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{
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return AtlasRoot + "/" + GetAtlasName(relativeFolder) + ".spriteatlas";
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}
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public static string GetAtlasPathForTexture(string texturePath)
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{
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texturePath = texturePath?.Replace('\\', '/');
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if (!IsTexturePath(texturePath)) throw new ArgumentException("Not a UI texture: " + texturePath);
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int lastSlash = texturePath.LastIndexOf('/');
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string folder = lastSlash == TextureRoot.Length ? "" :
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texturePath.Substring(TextureRoot.Length + 1, lastSlash - TextureRoot.Length - 1);
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return GetAtlasPath(folder);
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}
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}
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}
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