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.Cnc/Traits/GpsDot.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 OpenRA.Mods.Cnc.Effects;
+using OpenRA.Traits;
+
+namespace OpenRA.Mods.Cnc.Traits
+{
+	[Desc("Show an indicator revealing the actor underneath the fog when a GPSWatcher is activated.")]
+	sealed class GpsDotInfo : TraitInfo
+	{
+		[Desc("Sprite collection for symbols.")]
+		public readonly string Image = "gpsdot";
+
+		[SequenceReference(nameof(Image))]
+		[Desc("Sprite used for this actor.")]
+		public readonly string String = "Infantry";
+
+		[PaletteReference(true)]
+		public readonly string IndicatorPalettePrefix = "player";
+
+		public override object Create(ActorInitializer init) { return new GpsDot(this); }
+	}
+
+	sealed class GpsDot : INotifyCreated, INotifyAddedToWorld, INotifyRemovedFromWorld
+	{
+		readonly GpsDotInfo info;
+		GpsDotEffect effect;
+
+		public GpsDot(GpsDotInfo info)
+		{
+			this.info = info;
+		}
+
+		void INotifyCreated.Created(Actor self)
+		{
+			effect = new GpsDotEffect(self, info);
+		}
+
+		void INotifyAddedToWorld.AddedToWorld(Actor self)
+		{
+			self.World.AddFrameEndTask(w => w.Add(effect));
+		}
+
+		void INotifyRemovedFromWorld.RemovedFromWorld(Actor self)
+		{
+			self.World.AddFrameEndTask(w => w.Remove(effect));
+		}
+	}
+}