Fix target lines appearing not long enough on screen

Also changes the Delay attribute from ticks to milliseconds.

OpenRA.Mods.Common/UpdateRules/Rules/20200503/ChangeTargetLineDelayToMilliseconds.cs

@@ -0,0 +1,44 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2020 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
+{
+	class ChangeTargetLineDelayToMilliseconds : UpdateRule
+	{
+		public override string Name { get { return "Changed DrawLineToTarget.Delay interpretation from ticks to milliseconds."; } }
+		public override string Description
+		{
+			get
+			{
+				return "Going forward, the value of the `Delay` attribute of the `DrawLineToTarget` trait will be\n" +
+					"interpreted as milliseconds instead of ticks.\n";
+			}
+		}
+
+		public override IEnumerable<string> UpdateActorNode(ModData modData, MiniYamlNode actorNode)
+		{
+			foreach (var dltt in actorNode.ChildrenMatching("DrawLineToTarget", includeRemovals: false))
+			{
+				var delayNode = dltt.LastChildMatching("Delay", false);
+				if (delayNode != null)
+				{
+					int delay;
+					if (Exts.TryParseIntegerInvariant(delayNode.Value.Value, out delay))
+						delayNode.ReplaceValue((delay * 1000 / 25).ToString());
+				}
+			}
+
+			yield break;
+		}
+	}
+}

OpenRA.Mods.Common/UpdateRules/UpdatePath.cs

@@ -68,6 +68,7 @@ namespace OpenRA.Mods.Common.UpdateRules
 				new UpdateTilesetColors(),
 				new UpdateMapInits(),
 				new CreateFlashPaletteEffectWarhead(),
+				new ChangeTargetLineDelayToMilliseconds(),
 			})
 		};