add spice refinery smoke overlay when harvester docked

OpenRA.Mods.D2k/OpenRA.Mods.D2k.csproj

@@ -89,6 +89,7 @@
     <Compile Include="DamagedWithoutFoundation.cs" />
     <Compile Include="Render\WithBuildingPlacedOverlayInfo.cs" />
     <Compile Include="Render\WithProductionOverlay.cs" />
+    <Compile Include="Render\WithDockingOverlay.cs" />
   </ItemGroup>
   <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
   <PropertyGroup>

OpenRA.Mods.D2k/Render/WithDockingOverlay.cs

@@ -0,0 +1,74 @@
+#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.Effects;
+using OpenRA.FileFormats;
+using OpenRA.Graphics;
+using OpenRA.Traits;
+using OpenRA.Mods.RA.Buildings;
+
+namespace OpenRA.Mods.RA.Render
+{
+	public class WithDockingOverlayInfo : ITraitInfo, Requires<RenderSpritesInfo>, Requires<IBodyOrientationInfo>
+	{
+		[Desc("Sequence name to use")]
+		public readonly string Sequence = "docking-overlay";
+
+		[Desc("Position relative to body")]
+		public readonly WVec Offset = WVec.Zero;
+
+		public object Create(ActorInitializer init) { return new WithDockingOverlay(init.self, this); }
+	}
+
+	public class WithDockingOverlay : INotifyDocking, INotifyBuildComplete, INotifySold
+	{
+		WithDockingOverlayInfo info;
+		Animation overlay;
+		bool buildComplete, docked;
+
+		public WithDockingOverlay(Actor self, WithDockingOverlayInfo info)
+		{
+			this.info = info;
+
+			var rs = self.Trait<RenderSprites>();
+			var body = self.Trait<IBodyOrientation>();
+
+			buildComplete = !self.HasTrait<Building>(); // always render instantly for units
+
+			overlay = new Animation(rs.GetImage(self));
+			overlay.Play(info.Sequence);
+			rs.anims.Add("docking_overlay_{0}".F(info.Sequence),
+				new AnimationWithOffset(overlay,
+					() => body.LocalToWorld(info.Offset.Rotate(body.QuantizeOrientation(self, self.Orientation))),
+					() => !buildComplete));
+		}
+
+		void PlayDockingOverlay()
+		{
+			if (docked)
+				overlay.PlayThen(info.Sequence, PlayDockingOverlay);
+		}
+
+		public void BuildingComplete(Actor self)
+		{
+			self.World.AddFrameEndTask(w => w.Add(new DelayedAction(120, () =>
+					buildComplete = true)));
+		}
+
+		public void Sold(Actor self) { }
+		public void Selling(Actor self)
+		{
+			buildComplete = false;
+		}
+
+		public void Docked(Actor self, Actor harvester) { docked = true; PlayDockingOverlay(); }
+		public void Undocked(Actor self, Actor harvester) { docked = false; }
+	}
+}