Avoid a nil index crash

Kyle

2013-02-22 985401a23d1581e71f762bdaeadfc19734fdf148

 technic/injector1.lua

File was renamed from technic/technic/injector.lua
@@ -5,8 +5,8 @@

minetest.register_node("technic:injector", {
   description = "Injector",
   tiles = {"technic_iron_chest_top.png", "technic_iron_chest_top.png", "technic_iron_chest_side.png",
      "technic_iron_chest_side.png", "technic_iron_chest_side.png", "technic_iron_chest_front.png"},
   tiles = {"technic_injector_top.png", "technic_injector_bottom.png", "technic_injector_side.png",
      "technic_injector_side.png", "technic_injector_side.png", "technic_injector_side.png"},
   paramtype2 = "facedir",
   groups = {snappy=2,choppy=2,oddly_breakable_by_hand=2},
   legacy_facedir_simple = true,
@@ -322,4 +322,5 @@
if meta:get_float("tubelike")==1 then add_new_TUBE_node(TUBE_nodes,pos1,parent) return end
nctr = minetest.env:get_node(pos1)
if minetest.get_item_group(nctr.name, "tubedevice_receiver") == 1 then add_new_TUBE_node(CHEST_nodes,pos1,parent) return end
end
end