Implement new mod/map updater framework.

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

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+#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 RemoveWeaponScanRadius : UpdateRule
+	{
+		public override string Name { get { return "Remove Weapon ScanRadius parameters"; } }
+		public override string Description
+		{
+			get
+			{
+				return "The *ScanRadius parameters have been removed from weapon projectiles and warheads.\n" +
+					"These values are now automatically determined by the engine.\n" +
+					"CreateEffect.ImpactActors: False has been added to replace VictimScanRadius: 0";
+			}
+		}
+
+		public override IEnumerable<string> UpdateWeaponNode(ModData modData, MiniYamlNode weaponNode)
+		{
+			foreach (var node in weaponNode.ChildrenMatching("Warhead"))
+			{
+				if (node.Value.Value == "CreateEffect")
+				{
+					var victimScanRadius = node.LastChildMatching("VictimScanRadius");
+					if (victimScanRadius != null && victimScanRadius.NodeValue<int>() == 0)
+						node.AddNode("ImpactActors", "false");
+					node.RemoveNodes("VictimScanRadius");
+				}
+			}
+
+			var projectile = weaponNode.LastChildMatching("Projectile");
+			if (projectile != null)
+			{
+				projectile.RemoveNodes("BounceBlockerScanRadius");
+				projectile.RemoveNodes("BlockerScanRadius");
+				projectile.RemoveNodes("AreaVictimScanRadius");
+			}
+
+			yield break;
+		}
+	}
+}