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/SelectionDecorations.cs

@@ -0,0 +1,93 @@
+#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
+{
+	public class SelectionDecorationsInfo : SelectionDecorationsBaseInfo, Requires<InteractableInfo>
+	{
+		public override object Create(ActorInitializer init) { return new SelectionDecorations(init.Self, this); }
+	}
+
+	public class SelectionDecorations : SelectionDecorationsBase, IRender
+	{
+		readonly Interactable interactable;
+
+		public SelectionDecorations(Actor self, SelectionDecorationsInfo info)
+			: base(info)
+		{
+			interactable = self.Trait<Interactable>();
+		}
+
+		int2 GetDecorationPosition(Actor self, WorldRenderer wr, string pos)
+		{
+			var bounds = interactable.DecorationBounds(self, wr);
+			switch (pos)
+			{
+				case "TopLeft": return bounds.TopLeft;
+				case "TopRight": return bounds.TopRight;
+				case "BottomLeft": return bounds.BottomLeft;
+				case "BottomRight": return bounds.BottomRight;
+				case "Top": return new int2(bounds.Left + bounds.Size.Width / 2, bounds.Top);
+				default: return bounds.TopLeft + new int2(bounds.Size.Width / 2, bounds.Size.Height / 2);
+			}
+		}
+
+		static int2 GetDecorationMargin(string pos, int2 margin)
+		{
+			switch (pos)
+			{
+				case "TopLeft": return margin;
+				case "TopRight": return new int2(-margin.X, margin.Y);
+				case "BottomLeft": return new int2(margin.X, -margin.Y);
+				case "BottomRight": return -margin;
+				case "Top": return new int2(0, margin.Y);
+				default: return int2.Zero;
+			}
+		}
+
+		protected override int2 GetDecorationOrigin(Actor self, WorldRenderer wr, string pos, int2 margin)
+		{
+			return wr.Viewport.WorldToViewPx(GetDecorationPosition(self, wr, pos)) + GetDecorationMargin(pos, margin);
+		}
+
+		protected override IEnumerable<IRenderable> RenderSelectionBox(Actor self, WorldRenderer wr, Color color)
+		{
+			var bounds = interactable.DecorationBounds(self, wr);
+			yield return new SelectionBoxAnnotationRenderable(self, bounds, color);
+		}
+
+		protected override IEnumerable<IRenderable> RenderSelectionBars(Actor self, WorldRenderer wr, bool displayHealth, bool displayExtra)
+		{
+			// Don't render the selection bars for non-selectable actors
+			if (interactable is not Selectable || (!displayHealth && !displayExtra))
+				yield break;
+
+			var bounds = interactable.DecorationBounds(self, wr);
+			yield return new SelectionBarsAnnotationRenderable(self, bounds, displayHealth, displayExtra);
+		}
+
+		IEnumerable<IRenderable> IRender.Render(Actor self, WorldRenderer wr)
+		{
+			yield break;
+		}
+
+		IEnumerable<Rectangle> IRender.ScreenBounds(Actor self, WorldRenderer wr)
+		{
+			yield return interactable.DecorationBounds(self, wr);
+		}
+	}
+}