Fix #429. Capturable Oil Derricks.

OpenRA.Mods.RA/EngineerRepair.cs

@@ -49,7 +49,6 @@ namespace OpenRA.Mods.RA
 								
 				self.CancelActivity();
 				self.QueueActivity(new Enter(order.TargetActor));
-				//self.QueueActivity(new Move(order.TargetActor.Location, order.TargetActor));
 				self.QueueActivity(new RepairBuilding(order.TargetActor));
 			}
 		}
@@ -64,6 +63,8 @@ namespace OpenRA.Mods.RA
 			public override bool CanTargetActor(Actor self, Actor target, bool forceAttack, bool forceMove, bool forceQueued, ref string cursor)
 			{
 				if( !base.CanTargetActor( self, target, forceAttack, forceMove, forceQueued, ref cursor ) ) return false;
+				if (!target.HasTrait<RepairableBuilding>())
+					return false;
 				
 				IsQueued = forceQueued;
 

mods/cnc/rules/tech.yaml

@@ -2,9 +2,12 @@
 V19:
 	Inherits: ^CivBuilding
 	RenderBuilding:
+	CashTrickler:
 	Building:
 		Footprint: x
 		Dimensions: 1,1
+		Capturable: true
+		Unsellable: true
 	-DeadBuildingState:
 	Tooltip:
 		Name: Oil Derrick