UnitInfo.Selectable

OpenRa.Game/Actor.cs

@@ -83,7 +83,10 @@ namespace OpenRa.Game
 			if (!Rules.Map.IsInMap(xy.X, xy.Y))
 				return null;
 
-			var underCursor = Game.UnitInfluence.GetUnitAt( xy ) ?? Game.BuildingInfluence.GetBuildingAt( xy );
+			var underCursor = Game.UnitInfluence.GetUnitAt( xy ) 
+				?? Game.BuildingInfluence.GetBuildingAt( xy );
+			if (underCursor != null && !underCursor.unitInfo.Selectable)
+				underCursor = null;
 
 			return traits.WithInterface<Traits.IOrder>()
 				.Select( x => x.IssueOrder( this, xy, lmb, underCursor ) )

OpenRa.Game/Game.cs

@@ -276,6 +276,7 @@ namespace OpenRa.Game
 		public static IEnumerable<Actor> SelectActorsInBox(float2 a, float2 b)
 		{
 			return FindUnits(a, b)
+				.Where( x => x.unitInfo.Selectable )
 				.GroupBy(x => (x.Owner == LocalPlayer) ? x.unitInfo.SelectionPriority : 0)
 				.OrderByDescending(g => g.Key)
 				.Select( g => g.AsEnumerable() )

OpenRa.Game/GameRules/UnitInfo.cs

@@ -54,6 +54,7 @@ namespace OpenRa.Game.GameRules
 		public readonly bool MuzzleFlash = false;
 		public readonly int SelectionPriority = 10;
 		public readonly int InitialFacing = 128;
+		public readonly bool Selectable = true;
 
 		public UnitInfo(string name) { Name = name; }
 	}