msam polish -- contains some dirty hacks

OpenRA.Mods.RA/Render/RenderUnitReload.cs

@@ -34,4 +34,25 @@ namespace OpenRA.Mods.RA.Render
 			base.Tick(self);
 		}
 	}
+
+	/* todo: native elevation support on turrets, and this dies? */
+
+	class RenderUnitTurretedAimInfo : RenderUnitTurretedInfo
+	{
+		public override object Create(ActorInitializer init) { return new RenderUnitTurretedAim(init.self); }
+	}
+
+	class RenderUnitTurretedAim : RenderUnitTurreted
+	{
+		public RenderUnitTurretedAim(Actor self)
+			: base(self) { }
+
+		public override void Tick(Actor self)
+		{
+			var attack = self.TraitOrDefault<AttackBase>();
+			var isAttacking = attack != null && attack.target.IsValid;
+			anims["turret_0"].Animation.ReplaceAnim(isAttacking ? "aim" : "turret");
+			base.Tick(self);
+		}
+	}
 }