-- download at MT.QZX.COM (refill-jakab-ore-spawners.lua)

if not a then
	a="E" -- tunnel direction: N S E W
	t="spawners_ores:stone_with_gold_spawner" -- spawner type
	f="default:gold_ingot" -- spawner fuel

	-- DON'T TOUCH ANYTHING BELOW HERE
	m = 1 ; t_active = string.concat({t, "_active"}) ; fs = string.len(f)+2
	as={["N"]=0,["W"]=90,["S"]=180,["E"]=270} ; turn.angle(as[a])
	for i = 1,5 do
		local item = check_inventory.up("", "main", i)
		if not take.up(item) then break end
	end
else
	local function get_count(side)
		local i = check_inventory[side]("", "fuel", 1)
		if i == "" or i == nil then return 99 end
		local c = string.sub(i, fs)
		if c == "" or c == nil then c = 1 end
		return 99 - tonumber(c)
	end
	if m == 0 then
		local node = read_node.down()
		if node == t or node == t_active then
			local c = get_count("down")
			if c > 0 then
				if not insert.down(string.concat({f, " ", c}), "fuel") then
					insert.down(f, "fuel")
				end
			end
		end
		if not check_inventory.self(f, "main") then self.remove() end
		m = 1
	elseif m == 1 then
		local node = read_node.forward_down()
		if node ~= "air" then
			move.forward()
			m = 0
		else
			self.remove()
		end
	end
end