52 lines
2.1 KiB
C#
52 lines
2.1 KiB
C#
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using System.Runtime.InteropServices;
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namespace Theriapolis.Game.Platform;
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/// <summary>
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/// OS-aware save directory resolution. Per the implementation plan §4.2,
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/// saves live under the platform-appropriate user data directory.
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/// </summary>
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public static class SavePaths
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{
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/// <summary>Top-level Theriapolis save directory. Created on first call if missing.</summary>
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public static string SavesDir
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{
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get
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{
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string dir = ResolveBase();
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Directory.CreateDirectory(dir);
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return dir;
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}
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}
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public static string SlotPath(int slot) => Path.Combine(SavesDir, $"slot_{slot:D2}.trps");
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public static string AutosavePath() => Path.Combine(SavesDir, "autosave.trps");
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private static string ResolveBase()
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{
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if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
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return Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData),
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"Theriapolis", "Saves");
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if (RuntimeInformation.IsOSPlatform(OSPlatform.OSX))
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return Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.UserProfile),
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"Library", "Application Support", "Theriapolis", "Saves");
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// Linux + others: respect XDG_DATA_HOME, fall back to ~/.local/share.
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string xdg = Environment.GetEnvironmentVariable("XDG_DATA_HOME") ?? "";
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if (string.IsNullOrEmpty(xdg))
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xdg = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.UserProfile),
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".local", "share");
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return Path.Combine(xdg, "Theriapolis", "saves");
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}
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/// <summary>Atomic-rename file write so a crash mid-save can't corrupt the slot.</summary>
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public static void WriteAtomic(string path, byte[] bytes)
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{
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string dir = Path.GetDirectoryName(path)!;
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Directory.CreateDirectory(dir);
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string tmp = path + ".tmp";
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File.WriteAllBytes(tmp, bytes);
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if (File.Exists(path)) File.Replace(tmp, path, destinationBackupFileName: null);
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else File.Move(tmp, path);
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}
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}
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