Add OnAnyProduction and OnSold lua triggers

OpenRA.Mods.Common/Scripting/Global/TriggerGlobal.cs

@@ -147,6 +147,13 @@ namespace OpenRA.Mods.Common.Scripting
 			GetScriptTriggers(a).RegisterCallback(Trigger.OnProduction, func, Context);
 		}
 
+		[Desc("Call a function when any actor produces another actor. The callback " +
+			"function will be called as func(Actor producer, Actor produced, string productionType).")]
+		public void OnAnyProduction(LuaFunction func)
+		{
+			GetScriptTriggers(Context.World.WorldActor).RegisterCallback(Trigger.OnOtherProduction, func, Context);
+		}
+
 		[Desc("Call a function when this player completes all primary objectives. " +
 			"The callback function will be called as func(Player player).")]
 		public void OnPlayerWon(Player player, LuaFunction func)
@@ -456,6 +463,13 @@ namespace OpenRA.Mods.Common.Scripting
 			GetScriptTriggers(discovered.PlayerActor).RegisterCallback(Trigger.OnPlayerDiscovered, func, Context);
 		}
 
+		[Desc("Call a function when this actor is sold. The callback function " +
+			"will be called as func(Actor self).")]
+		public void OnSold(Actor a, LuaFunction func)
+		{
+			GetScriptTriggers(a).RegisterCallback(Trigger.OnSold, func, Context);
+		}
+
 		[Desc("Removes all triggers from this actor. " +
 			"Note that the removal will only take effect at the end of a tick, " +
 			"so you must not add new triggers at the same time that you are calling this function.")]

OpenRA.Mods.Common/Scripting/ScriptTriggers.cs

@@ -421,7 +421,8 @@ namespace OpenRA.Mods.Common.Scripting
 				{
 					using (var a = producee.ToLuaValue(f.Context))
 					using (var b = produced.ToLuaValue(f.Context))
-						f.Function.Call(a, b).Dispose();
+					using (var c = productionType.ToLuaValue(f.Context))
+						f.Function.Call(a, b, c).Dispose();
 				}
 				catch (Exception ex)
 				{