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/SpawnMapActors.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 System.Linq;
+using OpenRA.Graphics;
+using OpenRA.Traits;
+
+namespace OpenRA.Mods.Common.Traits
+{
+	[TraitLocation(SystemActors.World)]
+	[Desc("Spawns the initial units for each player upon game start.")]
+	public class SpawnMapActorsInfo : TraitInfo<SpawnMapActors> { }
+
+	public class SpawnMapActors : IWorldLoaded
+	{
+		public Dictionary<string, Actor> Actors = [];
+		public uint LastMapActorID { get; private set; }
+
+		public void WorldLoaded(World world, WorldRenderer wr)
+		{
+			var preventMapSpawns = world.WorldActor.TraitsImplementing<IPreventMapSpawn>()
+				.Concat(world.WorldActor.Owner.PlayerActor.TraitsImplementing<IPreventMapSpawn>())
+				.ToArray();
+
+			foreach (var kv in world.Map.ActorDefinitions)
+			{
+				var actorReference = new ActorReference(kv.Value.Value, kv.Value);
+
+				// If an actor's doesn't have a valid owner transfer ownership to neutral
+				var ownerInit = actorReference.Get<OwnerInit>();
+				if (!world.Players.Any(p => p.InternalName == ownerInit.InternalName))
+					actorReference.Replace(new OwnerInit(world.WorldActor.Owner));
+
+				actorReference.Add(new SkipMakeAnimsInit());
+				actorReference.Add(new SpawnedByMapInit());
+
+				if (PreventMapSpawn(world, actorReference, preventMapSpawns))
+					continue;
+
+				var actor = world.CreateActor(true, actorReference);
+				Actors[kv.Key] = actor;
+				LastMapActorID = actor.ActorID;
+			}
+		}
+
+		static bool PreventMapSpawn(World world, ActorReference actorReference, IEnumerable<IPreventMapSpawn> preventMapSpawns)
+		{
+			foreach (var pms in preventMapSpawns)
+				if (pms.PreventMapSpawn(world, actorReference))
+					return true;
+
+			return false;
+		}
+	}
+
+	public class SkipMakeAnimsInit : RuntimeFlagInit { }
+	public class SpawnedByMapInit : ActorInit, ISuppressInitExport, ISingleInstanceInit
+	{
+		protected SpawnedByMapInit(string instanceName)
+			: base(instanceName) { }
+
+		public SpawnedByMapInit() { }
+
+		public override MiniYaml Save() => null;
+	}
+}