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/Traits/Render/WithTextControlGroupDecoration.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.Graphics;
+using OpenRA.Mods.Common.Graphics;
+using OpenRA.Primitives;
+using OpenRA.Traits;
+
+namespace OpenRA.Mods.Common.Traits.Render
+{
+	[Desc("Renders Ctrl groups using typeface.")]
+	public class WithTextControlGroupDecorationInfo : TraitInfo, IRulesetLoaded
+	{
+		public readonly string Font = "TinyBold";
+
+		[Desc("Display in this color when not using the player color.")]
+		public readonly Color Color = Color.White;
+
+		[Desc("Use the player color of the current owner.")]
+		public readonly bool UsePlayerColor = false;
+
+		[Desc("Position in the actor's selection box to draw the decoration.")]
+		public readonly string Position = "TopLeft";
+
+		[Desc("Offset text center position from the selection box edge.")]
+		public readonly int2 Margin = int2.Zero;
+
+		void IRulesetLoaded<ActorInfo>.RulesetLoaded(Ruleset rules, ActorInfo info)
+		{
+			if (!Game.ModData.GetOrCreate<Fonts>().FontList.ContainsKey(Font))
+				throw new YamlException($"Font '{Font}' is not listed in the mod.yaml's Fonts section");
+		}
+
+		public override object Create(ActorInitializer init) { return new WithTextControlGroupDecoration(init.Self, this); }
+	}
+
+	public class WithTextControlGroupDecoration : IDecoration
+	{
+		readonly WithTextControlGroupDecorationInfo info;
+		readonly SpriteFont font;
+		readonly CachedTransform<int, string> label;
+
+		public WithTextControlGroupDecoration(Actor self, WithTextControlGroupDecorationInfo info)
+		{
+			this.info = info;
+			font = Game.Renderer.Fonts[info.Font];
+			label = new CachedTransform<int, string>(g => self.World.ControlGroups.Groups[g]);
+		}
+
+		bool IDecoration.RequiresSelection => true;
+
+		IEnumerable<IRenderable> IDecoration.RenderDecoration(Actor self, WorldRenderer wr, ISelectionDecorations container)
+		{
+			var group = self.World.ControlGroups.GetControlGroupForActor(self);
+			if (group == null)
+				return [];
+
+			var text = label.Update(group.Value);
+			var screenPos = container.GetDecorationOrigin(self, wr, info.Position, info.Margin);
+			return
+			[
+				new UITextRenderable(font, self.CenterPosition, screenPos, 0, info.UsePlayerColor ? self.OwnerColor() : info.Color, text)
+			];
+		}
+	}
+}