Add SpriteHarvesterDockSequence and VoxelHarvesterDockSequence

Pass drag-related info from Refinery to HarvesterDockSequence

OpenRA.Mods.RA/Activities/SpriteHarvesterDockSequence.cs

@@ -0,0 +1,40 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2015 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.Activities;
+using OpenRA.Mods.Common.Traits;
+
+namespace OpenRA.Mods.RA.Activities
+{
+	public class SpriteHarvesterDockSequence : HarvesterDockSequence
+	{
+		readonly RenderUnit ru;
+
+		public SpriteHarvesterDockSequence(Actor self, Actor refinery, int dockAngle, bool isDragRequired, WVec dragOffset, int dragLength)
+			: base(self, refinery, dockAngle, isDragRequired, dragOffset, dragLength)
+		{
+			ru = self.Trait<RenderUnit>();
+		}
+
+		public override Activity OnStateDock(Actor self)
+		{
+			ru.PlayCustomAnimation(self, "dock", () => ru.PlayCustomAnimRepeating(self, "dock-loop"));
+			dockingState = State.Loop;
+			return this;
+		}
+
+		public override Activity OnStateUndock(Actor self)
+		{
+			ru.PlayCustomAnimBackwards(self, "dock", () => dockingState = State.Complete);
+			dockingState = State.Wait;
+			return this;
+		}
+	}
+}