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

(?)
This commit is contained in:
Vanessa Ezekowitz 2014-01-05 21:56:14 -05:00
parent d33eb89dcb
commit 937a8a5732

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@ -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