Add an update rules for the ShakeOnDeath fix

OpenRA.Mods.Common/UpdateRules/Rules/ChangeIntensityToDuration.cs

@@ -0,0 +1,44 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2018 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, either version 3 of
+ * the License, or (at your option) any later version. For more
+ * information, see COPYING.
+ */
+#endregion
+
+using System.Collections.Generic;
+
+namespace OpenRA.Mods.Common.UpdateRules.Rules
+{
+	public class ChangeIntensityToDuration : UpdateRule
+	{
+		public override string Name { get { return "Add a 'Duration' parameter to 'ShakeOnDeath'."; } }
+		public override string Description
+		{
+			get
+			{
+				return "The 'Intensity' parameter on 'ShakeOnDeath' has been used as duration\n" +
+					"by accident. A new 'Duration' parameter was added to fix that.\n" +
+					"Definitions of 'Intensity' will be automatically renamed to 'Duration'.\n" +
+					"The old 'Intensity' parameter will now change the intensity as intended.";
+			}
+		}
+
+		public override IEnumerable<string> UpdateActorNode(ModData modData, MiniYamlNode actorNode)
+		{
+			foreach (var sod in actorNode.ChildrenMatching("ShakeOnDeath"))
+			{
+				var intensity = sod.LastChildMatching("Intensity");
+				if (intensity == null)
+					continue;
+
+				intensity.RenameKeyPreservingSuffix("Duration");
+			}
+
+			yield break;
+		}
+	}
+}