From c5547ec20b005a2f61982d1dec46ab55e53681ae Mon Sep 17 00:00:00 2001
From: Paul Chote <pchote@users.noreply.github.com>
Date: Thu, 20 Apr 2017 19:57:26 +0100
Subject: [PATCH] Fix harvesters harvesting resources from underground.

---
 OpenRA.Mods.Common/ActorExts.cs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/OpenRA.Mods.Common/ActorExts.cs b/OpenRA.Mods.Common/ActorExts.cs
index 47c38529a5..0220493056 100644
--- a/OpenRA.Mods.Common/ActorExts.cs
+++ b/OpenRA.Mods.Common/ActorExts.cs
@@ -125,6 +125,10 @@ namespace OpenRA.Mods.Common
 		public static bool CanHarvestAt(this Actor self, CPos pos, ResourceLayer resLayer, HarvesterInfo harvInfo,
 			ResourceClaimLayer territory)
 		{
+			// Resources only exist in the ground layer
+			if (pos.Layer != 0)
+				return false;
+
 			var resType = resLayer.GetResource(pos);
 			if (resType == null)
 				return false;