From 9da077c9efa5cc3f5b994c0064daa922efd465db Mon Sep 17 00:00:00 2001
From: FaceDeer <derksenmobile@gmail.com>
Date: Thu, 12 Jan 2017 14:51:57 -0700
Subject: [PATCH] fix crash when auto-controller reaches unloaded nodes.

---
 class_layout.lua | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/class_layout.lua b/class_layout.lua
index 11ba4d0..67ddbf2 100644
--- a/class_layout.lua
+++ b/class_layout.lua
@@ -78,7 +78,8 @@ function DigtronLayout.create(pos, player)
 
 		if node.name == "ignore" then
 			--buildtron array is next to unloaded nodes, too dangerous to do anything. Abort.
-			return nil
+			self.all = nil
+			return self
 		end
 		
 		if minetest.get_item_group(node.name, "water") ~= 0 then
@@ -347,4 +348,3 @@ function DigtronLayout.write_layout_image(self)
 		end
 	end
 end
-