WithCrumbleOverlay for Dune 2000 buildings

OpenRA.Mods.D2k/Render/WithCrumbleOverlay.cs

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+#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 OpenRA.FileFormats;
+using OpenRA.Graphics;
+using OpenRA.Traits;
+using OpenRA.Mods.RA.Buildings;
+
+namespace OpenRA.Mods.RA.Render
+{
+	public class WithCrumbleOverlayInfo : ITraitInfo, Requires<RenderSpritesInfo>
+	{
+		[Desc("Sequence name to use")]
+		public readonly string Sequence = "crumble-overlay";
+
+		public object Create(ActorInitializer init) { return new WithCrumbleOverlay(init.self, this); }
+	}
+
+	public class WithCrumbleOverlay : INotifyBuildComplete
+	{
+		Animation overlay;
+		bool buildComplete = false;
+
+		public WithCrumbleOverlay(Actor self, WithCrumbleOverlayInfo info)
+		{
+			var rs = self.Trait<RenderSprites>();
+
+			overlay = new Animation(rs.GetImage(self));
+			overlay.Play(info.Sequence);
+			rs.anims.Add("make_overlay_{0}".F(info.Sequence), 
+				new AnimationWithOffset(overlay, null, () => !buildComplete, null));
+		}
+
+		public void BuildingComplete(Actor self)
+		{
+			buildComplete = true;
+		}
+	}
+}