split out Sellable into its own trait; yaml requires update

OpenRA.Mods.RA/Buildings/Building.cs

@@ -25,8 +25,6 @@ namespace OpenRA.Mods.RA.Buildings
 		public readonly bool Capturable = false;
 		public readonly string Footprint = "x";
 		public readonly int2 Dimensions = new int2(1, 1);
-		public readonly bool Unsellable = false;
-		public readonly int RefundPercent = 50;
 		
 		public readonly string[] BuildSounds = {"placbldg.aud", "build5.aud"};
 		public readonly string[] SellSounds = {"cashturn.aud"};

OpenRA.Mods.RA/Buildings/Sell.cs

@@ -24,17 +24,18 @@ namespace OpenRA.Mods.RA.Buildings
 		void DoSell(Actor self)
 		{
 			var h = self.TraitOrDefault<Health>();
-			var bi = self.Info.Traits.Get<BuildingInfo>();
+			var si = self.Info.Traits.Get<SellableInfo>();
 			var pr = self.Owner.PlayerActor.Trait<PlayerResources>();
 			var csv = self.Info.Traits.GetOrDefault<CustomSellValueInfo>();
 			
 			var cost = csv != null ? csv.Value : self.Info.Traits.Get<ValuedInfo>().Cost;
 			
-			var refund = (cost * bi.RefundPercent * (h == null ? 1 : h.HP)) / (100 * (h == null ? 1 : h.MaxHP));			
+			var refund = (cost * si.RefundPercent * (h == null ? 1 : h.HP)) / (100 * (h == null ? 1 : h.MaxHP));			
 			pr.GiveCash(refund);
 			
 			foreach (var ns in self.TraitsImplementing<INotifySold>())
 				ns.Sold(self);
+			
 			self.Destroy();
 		}
 

OpenRA.Mods.RA/Buildings/Sellable.cs

@@ -0,0 +1,45 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2011 The OpenRA Developers (see AUTHORS)
+ * 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. For more information,
+ * see COPYING.
+ */
+#endregion
+
+using System;
+using System.Collections.Generic;
+using OpenRA.Orders;
+using OpenRA.Traits;
+
+namespace OpenRA.Mods.RA.Buildings
+{
+	class SellableInfo : TraitInfo<Sellable> 
+	{
+		public readonly int RefundPercent = 50;
+	}
+	
+	class Sellable : IIssueOrder, IResolveOrder
+	{
+		public IEnumerable<IOrderTargeter> Orders 
+		{
+			get { yield return new PaletteOnlyOrderTargeter("Sell"); }
+		}
+		
+		public Order IssueOrder( Actor self, IOrderTargeter order, Target target, bool queued )
+		{
+			/* todo: make this work */
+			throw new NotImplementedException();
+		}
+		
+		public void ResolveOrder(Actor self, Order order)
+		{
+			if (order.OrderString == "Sell")
+			{
+				self.CancelActivity();
+				self.QueueActivity(new Sell());
+			}
+		}
+	}
+}