Initial commit: OpenRA game engine

Fork from OpenRA/OpenRA with one-click launch script (start-ra.cmd)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

OpenRA.Game/Primitives/DisposableAction.cs

@@ -0,0 +1,42 @@
+#region Copyright & License Information
+/*
+ * Copyright (c) The OpenRA Developers and Contributors
+ * This file is part of OpenRA, which is free software. It is made
+ * available to you under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, either version 3 of
+ * the License, or (at your option) any later version. For more
+ * information, see COPYING.
+ */
+#endregion
+
+using System;
+
+namespace OpenRA.Primitives
+{
+	public sealed class DisposableAction : IDisposable
+	{
+		public DisposableAction(Action onDispose, Action onFinalize)
+		{
+			this.onDispose = onDispose;
+			this.onFinalize = onFinalize;
+		}
+
+		readonly Action onDispose;
+		readonly Action onFinalize;
+		bool disposed;
+
+		public void Dispose()
+		{
+			if (disposed)
+				return;
+			disposed = true;
+			onDispose();
+			GC.SuppressFinalize(this);
+		}
+
+		~DisposableAction()
+		{
+			onFinalize();
+		}
+	}
+}