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/Immobile.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.Traits;
+
+namespace OpenRA.Mods.Common.Traits
+{
+	sealed class ImmobileInfo : TraitInfo, IOccupySpaceInfo
+	{
+		public readonly bool OccupiesSpace = true;
+		public override object Create(ActorInitializer init) { return new Immobile(init, this); }
+
+		public IReadOnlyDictionary<CPos, SubCell> OccupiedCells(ActorInfo info, CPos location, SubCell subCell = SubCell.Any)
+		{
+			return OccupiesSpace ? new Dictionary<CPos, SubCell>() { { location, SubCell.FullCell } } :
+				[];
+		}
+
+		bool IOccupySpaceInfo.SharesCell => false;
+	}
+
+	sealed class Immobile : IOccupySpace, ISync, INotifyAddedToWorld, INotifyRemovedFromWorld
+	{
+		readonly (CPos, SubCell)[] occupied;
+
+		public Immobile(ActorInitializer init, ImmobileInfo info)
+		{
+			TopLeft = init.GetValue<LocationInit, CPos>();
+			CenterPosition = init.World.Map.CenterOfCell(TopLeft);
+
+			if (info.OccupiesSpace)
+				occupied = [(TopLeft, SubCell.FullCell)];
+			else
+				occupied = [];
+		}
+
+		[VerifySync]
+		public CPos TopLeft { get; }
+		[VerifySync]
+		public WPos CenterPosition { get; }
+		public (CPos, SubCell)[] OccupiedCells() { return occupied; }
+
+		void INotifyAddedToWorld.AddedToWorld(Actor self)
+		{
+			self.World.AddToMaps(self, this);
+		}
+
+		void INotifyRemovedFromWorld.RemovedFromWorld(Actor self)
+		{
+			self.World.RemoveFromMaps(self, this);
+		}
+	}
+}