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/BackgroundWidget.cs

@@ -0,0 +1,43 @@
+#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 OpenRA.Widgets;
+
+namespace OpenRA.Mods.Common.Widgets
+{
+	[IncludeStaticFluentReferences(typeof(WidgetUtils))]
+	public class BackgroundWidget : Widget
+	{
+		public readonly bool ClickThrough = false;
+		public string Background = "dialog";
+
+		public override void Draw()
+		{
+			WidgetUtils.DrawPanel(Background, RenderBounds);
+		}
+
+		public BackgroundWidget() { }
+
+		public override bool HandleMouseInput(MouseInput mi)
+		{
+			return !ClickThrough && EventBounds.Contains(mi.Location);
+		}
+
+		protected BackgroundWidget(BackgroundWidget other)
+			: base(other)
+		{
+			Background = other.Background;
+			ClickThrough = other.ClickThrough;
+		}
+
+		public override BackgroundWidget Clone() { return new BackgroundWidget(this); }
+	}
+}