Add WithHarvestAnimation for TS and D2K harvester animations.

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

@@ -454,6 +454,7 @@
     <Compile Include="Render\WithVoxelWalkerBody.cs" />
     <Compile Include="Widgets\Logic\CreditsLogic.cs" />
     <Compile Include="Render\WithResources.cs" />
+    <Compile Include="Render\WithHarvestAnimation.cs" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\OpenRA.FileFormats\OpenRA.FileFormats.csproj">

OpenRA.Mods.RA/Render/WithHarvestAnimation.cs

@@ -0,0 +1,62 @@
+#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.Collections.Generic;
+using System.Linq;
+using OpenRA.FileFormats;
+using OpenRA.Graphics;
+using OpenRA.Traits;
+
+namespace OpenRA.Mods.RA.Render
+{
+	class WithHarvestAnimationInfo : ITraitInfo, Requires<RenderSpritesInfo>, Requires<IBodyOrientationInfo>
+	{
+		[Desc("Sequence name to use")]
+		public readonly string Sequence = "harvest";
+
+		[Desc("Position relative to body")]
+		public readonly WVec Offset = WVec.Zero;
+
+		[Desc("Additional draw-order offset")]
+		public readonly int ZOffset = 0;
+
+		public object Create(ActorInitializer init) { return new WithHarvestAnimation(init.self, this); }
+	}
+
+	class WithHarvestAnimation : INotifyHarvest
+	{
+		WithHarvestAnimationInfo info;
+		Animation anim;
+		bool visible;
+
+		public WithHarvestAnimation(Actor self, WithHarvestAnimationInfo info)
+		{
+			this.info = info;
+			var rs = self.Trait<RenderSprites>();
+			var body = self.Trait<IBodyOrientation>();
+
+			anim = new Animation(rs.GetImage(self), RenderSimple.MakeFacingFunc(self));
+			anim.Play(info.Sequence);
+			rs.anims.Add("harvest_{0}".F(info.Sequence), new AnimationWithOffset(anim,
+				() => body.LocalToWorld(info.Offset.Rotate(body.QuantizeOrientation(self, self.Orientation))),
+				() => !visible,
+			    p => WithTurret.ZOffsetFromCenter(self, p, info.ZOffset)));
+		}
+
+		public void Harvested(Actor self, ResourceType resource)
+		{
+			if (visible)
+				return;
+
+			visible = true;
+			anim.PlayThen(info.Sequence, () => visible = false);
+		}
+	}
+}