Moves loadscreens into LoadScreens folder/namespace.

Moves LoadWidgetAtGameStart to Traits/World.

OpenRA.Mods.Common/LoadScreens/ModChooserLoadScreen.cs

@@ -0,0 +1,47 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2014 The OpenRA Developers (see AUTHORS)
+ * 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. For more information,
+ * see COPYING.
+ */
+#endregion
+
+using System.Collections.Generic;
+using System.Drawing;
+using OpenRA.Graphics;
+using OpenRA.Widgets;
+
+namespace OpenRA.Mods.Common.LoadScreens
+{
+	public class ModChooserLoadScreen : ILoadScreen
+	{
+		Sprite sprite;
+		Rectangle bounds;
+
+		public void Init(Manifest m, Dictionary<string, string> info)
+		{
+			var sheet = new Sheet(info["Image"]);
+			var res = Game.Renderer.Resolution;
+			bounds = new Rectangle(0, 0, res.Width, res.Height);
+			sprite = new Sprite(sheet, new Rectangle(0,0,1024,480), TextureChannel.Alpha);
+		}
+
+		public void Display()
+		{
+			var r = Game.Renderer;
+			if (r == null)
+				return;
+
+			r.BeginFrame(int2.Zero, 1f);
+			WidgetUtils.FillRectWithSprite(bounds, sprite);
+			r.EndFrame(new NullInputHandler());
+		}
+
+		public void StartGame()
+		{
+			Ui.LoadWidget("MODCHOOSER", Ui.Root, new WidgetArgs());
+		}
+	}
+}