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/OwnerLostAction.cs

@@ -0,0 +1,55 @@
+#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.Linq;
+using OpenRA.Primitives;
+using OpenRA.Traits;
+
+namespace OpenRA.Mods.Common.Traits
+{
+	public enum OwnerLostActionType { ChangeOwner, Dispose, Kill }
+
+	[Desc("Perform an action when the actor's owner is defeated.")]
+	public class OwnerLostActionInfo : ConditionalTraitInfo
+	{
+		[FieldLoader.Require]
+		[Desc("What does this unit do when its owner loses.",
+		"Allowed values are 'ChangeOwner', 'Dispose', 'Kill'")]
+		public readonly OwnerLostActionType Action = OwnerLostActionType.Kill;
+
+		[Desc("Map player to use when 'Action' is 'ChangeOwner'.")]
+		public readonly string Owner = "Neutral";
+
+		[Desc("The deathtypes used when 'Action' is 'Kill'.")]
+		public readonly BitSet<DamageType> DeathTypes = default;
+
+		public override object Create(ActorInitializer init) { return new OwnerLostAction(this); }
+	}
+
+	public class OwnerLostAction : ConditionalTrait<OwnerLostActionInfo>, INotifyOwnerLost
+	{
+		public OwnerLostAction(OwnerLostActionInfo info)
+			: base(info) { }
+
+		void INotifyOwnerLost.OnOwnerLost(Actor self)
+		{
+			if (IsTraitDisabled)
+				return;
+
+			if (Info.Action == OwnerLostActionType.Kill)
+				self.Kill(self, Info.DeathTypes);
+			else if (Info.Action == OwnerLostActionType.Dispose)
+				self.Dispose();
+			else if (Info.Action == OwnerLostActionType.ChangeOwner)
+				self.ChangeOwner(self.World.Players.First(p => p.InternalName == Info.Owner));
+		}
+	}
+}