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/LabelWithHighlightWidget.cs

@@ -0,0 +1,86 @@
+#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;
+using System.Collections.Generic;
+using OpenRA.Graphics;
+using OpenRA.Primitives;
+using OpenRA.Widgets;
+
+namespace OpenRA.Mods.Common.Widgets
+{
+	public class LabelWithHighlightWidget : LabelWidget
+	{
+		public Color HighlightColor = ChromeMetrics.Get<Color>("TextHighlightColor");
+		readonly CachedTransform<string, (string Text, bool Highlighted)[]> textComponents;
+
+		[ObjectCreator.UseCtor]
+		public LabelWithHighlightWidget(ModData modData)
+			: base(modData)
+		{
+			textComponents = new CachedTransform<string, (string, bool)[]>(MakeComponents);
+		}
+
+		protected LabelWithHighlightWidget(LabelWithHighlightWidget other)
+			: base(other)
+		{
+			HighlightColor = other.HighlightColor;
+			textComponents = new CachedTransform<string, (string, bool)[]>(MakeComponents);
+		}
+
+		(string, bool)[] MakeComponents(string text)
+		{
+			var components = new List<(string, bool)>();
+			foreach (var l in text.Split("\\n", StringSplitOptions.None))
+			{
+				var line = l;
+
+				while (line.Length > 0)
+				{
+					var highlightStart = line.IndexOf('<');
+					var highlightEnd = line.IndexOf('>', 0);
+
+					if (highlightStart > 0 && highlightEnd > highlightStart)
+					{
+						// Normal line segment before highlight
+						var lineNormal = line[..highlightStart];
+						components.Add((lineNormal, false));
+
+						// Highlight line segment
+						var lineHighlight = line[(highlightStart + 1)..highlightEnd];
+						components.Add((lineHighlight, true));
+						line = line[(highlightEnd + 1)..];
+					}
+					else
+					{
+						// Final normal line segment
+						components.Add((line, false));
+						break;
+					}
+				}
+			}
+
+			return components.ToArray();
+		}
+
+		protected override void DrawInner(string text, SpriteFont font, Color color, int2 position)
+		{
+			var advance = 0;
+			foreach (var c in textComponents.Update(text))
+			{
+				base.DrawInner(c.Text, font, c.Highlighted ? HighlightColor : color, position + new int2(advance, 0));
+				advance += font.Measure(c.Text).X;
+			}
+		}
+
+		public override LabelWithHighlightWidget Clone() { return new LabelWithHighlightWidget(this); }
+	}
+}