fix nil reference crash in tube autorouter when unknown nodes are nearby

(?)
2014-01-05 21:56:14 -05:00 · 2014-01-05 21:56:14 -05:00 · 937a8a5732
parent d33eb89dcb
commit 937a8a5732
1 changed files with 1 additions and 1 deletions
--- a/autoplace_tubes.lua
+++ b/autoplace_tubes.lua
@ -100,7 +100,7 @@ local function tube_autoroute(pos)
 		if is_tube(node.name) then
 			active[i] = 1
 		-- handle new style connectors
-		elseif idef.tube and idef.tube.connect_sides then
+		elseif idef and idef.tube and idef.tube.connect_sides then
 			local dir = adjustments[i]
 			if idef.tube.connect_sides[nodeside(node, {x=-dir.x, y=-dir.y, z=-dir.z})] then active[i] = 1 end
 		end