-- download at MT.QZX.COM (refill-single-ore-spawner.lua)

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

	-- DON'T TOUCH ANYTHING BELOW HERE
	fs = string.len(f)+2
	as={["N"]=0,["W"]=90,["S"]=180,["E"]=270} ; turn.angle(as[a])
	for i = 1,3 do
		local item = check_inventory.up("", "main", i)
		if not take.up(item) then break end
	end
else
	local function get_count()
		local i = check_inventory.forward("", "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
	local c = get_count()
	if c > 0 then
		if not insert.forward(string.concat({f, " ", c}), "fuel") then
			insert.forward(f, "fuel")
		end
	end
	self.remove()
end