Restructuring orders.

OpenRa.Game/Traits/Activities/DeployMcv.cs

@@ -0,0 +1,27 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace OpenRa.Game.Traits.Activities
+{
+	class DeployMcv : Mobile.CurrentActivity
+	{
+		public Mobile.CurrentActivity NextActivity { get; set; }
+
+		public void Tick( Actor self, Mobile mobile )
+		{
+			Game.world.AddFrameEndTask( _ =>
+			{
+				Game.world.Remove( self );
+				Game.world.Add( new Actor( "fact", self.Location - new int2( 1, 1 ), self.Owner ) );
+			} );
+		}
+
+		public void Cancel( Actor self, Mobile mobile )
+		{
+			// Cancel can't happen between this being moved to the head of the list, and it being Ticked.
+			throw new InvalidOperationException( "DeployMcvAction: Cancel() should never occur." );
+		}
+	}
+}