add crane animation to Dune 2000 and Tiberian Sun

closes #3754

OpenRA.Mods.RA/OpenRA.Mods.RA.csproj

@@ -494,6 +494,7 @@
     <Compile Include="Widgets\Logic\ControlGroupLogic.cs" />
     <Compile Include="Buildings\LineBuildNode.cs" />
     <Compile Include="ModChooserLoadScreen.cs" />
+    <Compile Include="Render\WithBuildingPlacedAnimation.cs" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\OpenRA.Game\OpenRA.Game.csproj">

OpenRA.Mods.RA/Player/PlaceBuilding.cs

@@ -113,6 +113,9 @@ namespace OpenRA.Mods.RA
 
 			if (producer.Actor == null)
 				return;
+
+			foreach (var nbp in producer.Actor.TraitsImplementing<INotifyBuildingPlaced>())
+				nbp.BuildingPlaced(producer.Actor);
 		}
 
 		static int GetNumBuildables(Player p)

OpenRA.Mods.RA/Render/WithBuildingPlacedAnimation.cs

@@ -0,0 +1,41 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2014 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;
+
+namespace OpenRA.Mods.RA.Render
+{
+	public class WithBuildingPlacedAnimationInfo : ITraitInfo, Requires<RenderSimpleInfo>
+	{
+		[Desc("Sequence name to use")]
+		public readonly string Sequence = "build";
+
+		public object Create(ActorInitializer init) { return new WithBuildingPlacedAnimation(init.self, this); }
+	}
+
+	public class WithBuildingPlacedAnimation : INotifyBuildingPlaced
+	{
+		WithBuildingPlacedAnimationInfo info;
+		RenderSimple renderSimple;
+
+		public WithBuildingPlacedAnimation(Actor self, WithBuildingPlacedAnimationInfo info)
+		{
+			this.info = info;
+			renderSimple = self.Trait<RenderSimple>();
+		}
+		
+		public void BuildingPlaced(Actor self)
+		{
+			renderSimple.PlayCustomAnim(self, info.Sequence);
+		}
+	}
+}