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/Widgets/WidgetLoader.cs

@@ -0,0 +1,83 @@
+#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 System.IO;
+using System.Linq;
+using OpenRA.FileSystem;
+using OpenRA.Widgets;
+
+namespace OpenRA
+{
+	public class WidgetLoader
+	{
+		readonly Dictionary<string, MiniYamlNode> widgets = [];
+
+		public WidgetLoader(Manifest manifest, IReadOnlyFileSystem fileSystem)
+		{
+			var stringPool = new HashSet<string>(); // Reuse common strings in YAML
+			foreach (var file in manifest.ChromeLayout.Select(
+				a => MiniYaml.FromStream(fileSystem.Open(a), a, stringPool: stringPool)))
+				foreach (var w in file)
+				{
+					var key = w.Key[(w.Key.IndexOf('@') + 1)..];
+					if (widgets.ContainsKey(key))
+						throw new InvalidDataException($"Widget has duplicate Key `{w.Key}` at {w.Location}");
+					widgets.Add(key, w);
+				}
+		}
+
+		public Widget LoadWidget(WidgetArgs args, Widget parent, string w)
+		{
+			if (!widgets.TryGetValue(w, out var ret))
+				throw new InvalidDataException($"Cannot find widget with Id `{w}`");
+
+			return LoadWidget(args, parent, ret);
+		}
+
+		public Widget LoadWidget(WidgetArgs args, Widget parent, MiniYamlNode node)
+		{
+			var widget = NewWidget(node.Key, args);
+
+			parent?.AddChild(widget);
+
+			if (node.Key.Contains('@'))
+				FieldLoader.LoadFieldOrProperty(widget, "Id", node.Key.Split('@')[1]);
+
+			foreach (var child in node.Value.Nodes)
+				if (child.Key != "Children")
+					FieldLoader.LoadFieldOrProperty(widget, child.Key, child.Value.Value);
+
+			widget.Initialize(args);
+
+			foreach (var child in node.Value.Nodes)
+				if (child.Key == "Children")
+					foreach (var c in child.Value.Nodes)
+						LoadWidget(args, widget, c);
+
+			var logicNode = node.Value.NodeWithKeyOrDefault("Logic");
+			var logic = logicNode?.Value.ToDictionary();
+			args.Add("logicArgs", logic);
+
+			widget.PostInit(args);
+
+			args.Remove("logicArgs");
+
+			return widget;
+		}
+
+		static Widget NewWidget(string widgetType, WidgetArgs args)
+		{
+			widgetType = widgetType.Split('@')[0];
+			return Game.ModData.ObjectCreator.CreateObject<Widget>(widgetType + "Widget", args);
+		}
+	}
+}