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/World/ActorMapOverlay.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.Commands;
+using OpenRA.Mods.Common.Graphics;
+using OpenRA.Primitives;
+using OpenRA.Traits;
+
+namespace OpenRA.Mods.Common.Traits
+{
+	[TraitLocation(SystemActors.World)]
+	[IncludeStaticFluentReferences(typeof(ActorMapOverlay))]
+	[Desc("Renders a debug overlay showing the actor influence map. Attach this to the world actor.")]
+	public class ActorMapOverlayInfo : TraitInfo<ActorMapOverlay>, Requires<ActorMapInfo> { }
+
+	public class ActorMapOverlay : IRenderAnnotations, IWorldLoaded, IChatCommand
+	{
+		const string CommandName = "actor-map";
+
+		[FluentReference]
+		const string CommandDescription = "description-actor-map-overlay";
+
+		public bool Enabled;
+
+		void IWorldLoaded.WorldLoaded(World w, WorldRenderer wr)
+		{
+			var console = w.WorldActor.TraitOrDefault<ChatCommands>();
+			var help = w.WorldActor.TraitOrDefault<HelpCommand>();
+
+			if (console == null || help == null)
+				return;
+
+			console.RegisterCommand(CommandName, this);
+			help.RegisterHelp(CommandName, CommandDescription);
+		}
+
+		void IChatCommand.InvokeCommand(string name, string arg)
+		{
+			if (name == CommandName)
+				Enabled = !Enabled;
+		}
+
+		IEnumerable<IRenderable> IRenderAnnotations.RenderAnnotations(Actor self, WorldRenderer wr)
+		{
+			if (!Enabled)
+				yield break;
+
+			var map = wr.World.Map;
+
+			// Only get actors in actor map.
+			// Cull to visible cells while we are at it.
+			var actorsInBox = new HashSet<Actor>(100);
+			foreach (var mpos in wr.Viewport.AllVisibleCells.CandidateMapCoords)
+				actorsInBox.UnionWith(wr.World.ActorMap.GetActorsAt(mpos.ToCPos(map)));
+
+			foreach (var actor in actorsInBox)
+			{
+				if (actor.OccupiesSpace is not IOccupySpace space)
+					continue;
+
+				foreach (var (cell, subCell) in space.OccupiedCells())
+				{
+					var pos = map.CenterOfSubCell(cell, subCell);
+					var fullCell = subCell == SubCell.FullCell;
+
+					Color color;
+					color = fullCell ? Color.Red : wr.World.ActorMap.HasFreeSubCell(cell, false) ? Color.Yellow : Color.Orange;
+
+					var ramp = map.Ramp[cell];
+					var corners = map.Grid.Ramps[ramp].Corners;
+					for (var i = 0; i < 4; i++)
+					{
+						var j = (i + 1) % 4;
+						var start = pos + corners[i] / (fullCell ? 1 : 2);
+						var end = pos + corners[j] / (fullCell ? 1 : 2);
+						yield return new LineAnnotationRenderable(start, end, 2, color);
+					}
+				}
+			}
+		}
+
+		bool IRenderAnnotations.SpatiallyPartitionable => false;
+	}
+}