Extract actor voice set into Voiced trait

OpenRA.Mods.Common/Traits/Voiced.cs

@@ -0,0 +1,35 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2015 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.Collections.Generic;
+using System.Linq;
+using OpenRA.Traits;
+
+namespace OpenRA.Mods.Common.Traits
+{
+	public class VoicedInfo : ITraitInfo
+	{
+		[VoiceReference] public readonly string VoiceSet = null;
+
+		public object Create(ActorInitializer init) { return new Voiced(init.Self, this); }
+	}
+
+	public class Voiced : IVoiced
+	{
+		public readonly VoicedInfo Info;
+
+		public Voiced(Actor self, VoicedInfo info)
+		{
+			Info = info;
+		}
+
+		public string VoiceSet { get { return Info.VoiceSet; } }
+	}
+}