Avoid a nil index crash

Kyle

2013-02-22 985401a23d1581e71f762bdaeadfc19734fdf148

 technic/electric_furnace.lua

@@ -1,5 +1,3 @@
minetest.register_alias("electric_furnace", "technic:electric_furnace")

minetest.register_craft({
   output = 'technic:electric_furnace',
   recipe = {
@@ -103,8 +101,8 @@

      local meta = minetest.env:get_meta(pos)
      internal_EU_buffer=meta:get_float("internal_EU_buffer")
      internal_EU_buffer_size=meta:get_float("internal_EU_buffer")
      local load = math.floor(internal_EU_buffer/2000 * 100)
      internal_EU_buffer_size=meta:get_float("internal_EU_buffer_size")
      local load = math.floor(internal_EU_buffer/internal_EU_buffer_size * 100)
      meta:set_string("formspec",
            "invsize[8,9;]"..
            "image[1,1;1,2;technic_power_meter_bg.png^[lowpart:"..
@@ -147,31 +145,29 @@
            end
            meta:set_string("src_time", 0)
         end
         end		
         end
      end
		
		

		

      if srclist then
         cooked = minetest.get_craft_result({method = "cooking", width = 1, items = srclist})
         if cooked.time>0 then 
         hacky_swap_node(pos,"technic:electric_furnace_active")
         meta:set_string("infotext","Furnace active")
         meta:set_string("furnace_is_cookin",1)
      --   meta:set_string("formspec", electric_furnace_formspec)
         meta:set_string("src_time", 0)
         return
         end

      end
	

            hacky_swap_node(pos,"technic:electric_furnace")
            meta:set_string("infotext","Furnace inactive")
            meta:set_string("furnace_is_cookin",0)
      --      meta:set_string("formspec", electric_furnace_formspec)
            meta:set_string("src_time", 0)
		
	
end,		

end,
})

register_LV_machine ("technic:electric_furnace","RE")
register_LV_machine ("technic:electric_furnace_active","RE")