harvester actually sortof works now

OpenRa.Game/Traits/Activities/DeliverOre.cs

@@ -0,0 +1,34 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace OpenRa.Game.Traits.Activities
+{
+	class DeliverOre : Activity
+	{
+		public Activity NextActivity { get; set; }
+
+		bool isDone;
+
+		public void Tick(Actor self, Mobile mobile)
+		{
+			if (isDone)
+			{
+				mobile.InternalSetActivity(NextActivity);
+				/* todo: return to the ore patch */
+				return;
+			}
+
+			var renderUnit = self.traits.WithInterface<RenderUnit>().First();
+			if (renderUnit.anim.CurrentSequence.Name != "empty")
+				renderUnit.PlayCustomAnimation(self, "empty", 
+					() => isDone = true);
+		}
+
+		public void Cancel(Actor self, Mobile mobile)
+		{
+			mobile.InternalSetActivity(null);
+		}
+	}
+}

OpenRa.Game/Traits/Activities/Harvest.cs

@@ -8,6 +8,7 @@ namespace OpenRa.Game.Traits.Activities
 	class Harvest : Activity
 	{
 		public Activity NextActivity { get; set; }
+		bool isHarvesting = false;
 
 		public void Tick(Actor self, Mobile mobile)
 		{
@@ -18,10 +19,16 @@ namespace OpenRa.Game.Traits.Activities
 				Game.map.ContainsResource(self.Location) && 
 				Game.map.Harvest(self.Location, out isGem))
 			{
+				var harvestAnim = "harvest" + Util.QuantizeFacing(mobile.facing, 8);
+				var renderUnit = self.traits.WithInterface<RenderUnit>().First();	/* better have one of these! */
+				if (harvestAnim != renderUnit.anim.CurrentSequence.Name)
+					renderUnit.PlayCustomAnimation(self, harvestAnim, () => isHarvesting = false);
 				harv.AcceptResource(isGem);
 				return;
 			}
 
+			if (isHarvesting) return;
+
 			if (harv.IsFull)
 				PlanReturnToBase(self, mobile);
 			else
@@ -47,7 +54,7 @@ namespace OpenRa.Game.Traits.Activities
 
 			mobile.QueueActivity(new Move(proc.Location + new int2(1, 2)));
 			mobile.QueueActivity(new Turn(64));
-			/* todo: DeliverOre activity */
+			mobile.QueueActivity(new DeliverOre());
 
 			mobile.InternalSetActivity(NextActivity);
 		}