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.Mods.Common/Widgets/Logic/SingleHotkeyBaseLogic.cs

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+#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.Collections.Generic;
+using OpenRA.Widgets;
+
+namespace OpenRA.Mods.Common.Widgets.Logic
+{
+	public abstract class SingleHotkeyBaseLogic : ChromeLogic
+	{
+		protected SingleHotkeyBaseLogic(Widget widget, ModData modData, string argName, string parentName, Dictionary<string, MiniYaml> logicArgs)
+		{
+			var namedKey = new HotkeyReference();
+			if (logicArgs.TryGetValue(argName, out var yaml))
+				namedKey = modData.Hotkeys[yaml.Value];
+
+			var keyhandler = widget.Get<LogicKeyListenerWidget>(parentName);
+			keyhandler.AddHandler(e =>
+			{
+				if (e.Event == KeyInputEvent.Down && namedKey.IsActivatedBy(e))
+					return OnHotkeyActivated(e);
+
+				return false;
+			});
+		}
+
+		protected abstract bool OnHotkeyActivated(KeyInput e);
+	}
+}