InstalledGameVersionCatalog

Mlaumcherb.Client.Avalonia/холопы/PathHelper.cs

@@ -60,4 +60,9 @@ public static class PathHelper
     
     public static IOPath GetModpackManifestPath(string game_version) => 
         Path.Concat(GetVersionDir(game_version), "timerix_modpack_files.json");
+
+    public static IOPath GetCacheDir() =>
+        Path.Concat(GetRootFullPath(), "cache");
+    public static IOPath GetInstalledVersionCatalogPath() =>
+        Path.Concat(GetCacheDir(), "installed_versions.json");
 }

Mlaumcherb.Client.Avalonia/холопы/ReverseComparer.cs

@@ -0,0 +1,12 @@
+namespace Mlaumcherb.Client.Avalonia.холопы;
+
+// compares Y with X instead of X with Y
+public class ReverseComparer<T> : IComparer<T> where T : IComparable<T>
+{
+    public int Compare(T? x, T? y)
+    {
+        if (y is null)
+            return x is null ? 0 : -1;
+        return y.CompareTo(x);
+    }
+}