Move some traits from RA.Buildings to Common

OpenRA.Mods.Common/Traits/Sound/SoundOnDamageTransition.cs

@@ -0,0 +1,40 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2014 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 OpenRA.Traits;
+
+namespace OpenRA.Mods.Common
+{
+	public class SoundOnDamageTransitionInfo : ITraitInfo
+	{
+		public readonly string DamagedSound;
+		public readonly string DestroyedSound;
+
+		public object Create(ActorInitializer init) { return new SoundOnDamageTransition(this);}
+	}
+
+	public class SoundOnDamageTransition : INotifyDamageStateChanged
+	{
+		readonly SoundOnDamageTransitionInfo Info;
+
+		public SoundOnDamageTransition( SoundOnDamageTransitionInfo info )
+		{
+			Info = info;
+		}
+
+		public void DamageStateChanged(Actor self, AttackInfo e)
+		{
+			if (e.DamageState == DamageState.Dead)
+				Sound.Play(Info.DestroyedSound, self.CenterPosition);
+			else if (e.DamageState >= DamageState.Heavy && e.PreviousDamageState < DamageState.Heavy)
+				Sound.Play(Info.DamagedSound, self.CenterPosition);
+		}
+	}
+}