From c3fa9f7aa88f7fdcda6938a1b1f38db69d81ec9e Mon Sep 17 00:00:00 2001
From: Chris Forbes <chrisf@ijw.co.nz>
Date: Thu, 9 Sep 2010 12:34:35 +1200
Subject: [PATCH] #120 fixed: crash in DeliverResources.Tick

---
 OpenRA.Mods.RA/Activities/DeliverOre.cs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/OpenRA.Mods.RA/Activities/DeliverOre.cs b/OpenRA.Mods.RA/Activities/DeliverOre.cs
index 4c438a90e9..5c4af026f0 100755
--- a/OpenRA.Mods.RA/Activities/DeliverOre.cs
+++ b/OpenRA.Mods.RA/Activities/DeliverOre.cs
@@ -28,10 +28,10 @@ namespace OpenRA.Mods.RA.Activities
 
 			var harv = self.Trait<Harvester>();
 
-			if (harv.LinkedProc == null)
+			if (harv.LinkedProc == null || !harv.LinkedProc.IsInWorld)
 				harv.ChooseNewProc(self, null);
 
-			if (harv.LinkedProc == null)
+			if (harv.LinkedProc == null)	// no procs exist; check again in 1s.
 				return new Wait(25) { NextActivity = this };
 
 			var proc = harv.LinkedProc;