added RALint check for missing sequence definitions

closes #2283

OpenRA.Mods.RA/Lint/CheckSequences.cs

@@ -0,0 +1,38 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2013 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 System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Reflection;
+using OpenRA.FileFormats;
+using OpenRA.Graphics;
+using OpenRA.Traits;
+
+namespace OpenRA.Mods.RA
+{
+	class CheckSequences : ILintPass
+	{
+		public void Run(Action<string> emitError, Action<string> emitWarning)
+		{
+			var sequences = Game.modData.Manifest.Sequences
+				.Select(s => MiniYaml.FromFile(s)).Aggregate(MiniYaml.MergeLiberal);
+
+			foreach (var actorInfo in Rules.Info)
+				foreach (var renderInfo in actorInfo.Value.Traits.WithInterface<RenderSimpleInfo>())
+				{
+					var image = renderInfo.Image ?? actorInfo.Value.Name;
+					if (!sequences.Any(s => s.Key == image.ToLower()) && !actorInfo.Value.Name.Contains("^"))
+						emitWarning("Sprite image {0} from actor {1} has no sequence definition.".F(image, actorInfo.Value.Name));
+				}
+		}
+	}
+}