Scale2

local args = { ... }
local top = 46
local bottom = 42
local width = 66

local function refuel()
    if turtle.getFuelLevel() == 0 then
        local prev = turtle.getSelectedSlot()
        turtle.select(1)
        if not turtle.refuel(1) then
            print('Need more fuel')
            while not turtle.refuel(1) do
                sleep(1)
            end
        end
        turtle.select(prev)
    end
end

local function advance()
    if turtle.getSelectedSlot() == 16 then
        print('Need more materials')
        local empty = True
        while empty do
            for i=11, 16, 1 do
                if turtle.getItemCount(16) > 0 then
                    empty = False
                    turtle.select(9)
                end
            sleep(1)
           	end
        end
   	else
        turtle.select(turtle.getSelectedSlot() + 1)
   	end
end

local function replace()
    while turtle.detect() do
        turtle.dig()
		sleep(.5)
    end
	local data = turtle.getItemDetail()
	while turtle.getItemCount() == 0 or turtle.getItemDetail().name ~= 'minecraft:stone' do
		advance()
    end
    turtle.place()

end

local function returnToFloor()
    turtle.turnRight()
    turtle.forward()
    turtle.turnLeft()
end

turtle.select(11)
for i = 1, width, 1 do
	 local success, data = turtle.inspect()
        if success then
            if data.name ~= 'minecraft:stone' then
                replace()
            end
        else
            replace()
        end
    for j = 1, top-bottom, 1 do
        refuel()
		if i % 2 == 1 then
			while not turtle.up() do
				if turtle.detect() then
					turtle.digUp()
				elseif turtle.attack() then
				else
					sleep(1)
				end
			end
		else
			while not turtle.down() do
				if turtle.detect() then
					turtle.digDown()
				elseif turtle.attack() then
				else
					sleep(1)
				end
			end
		end
        local success, data = turtle.inspect()
        if success then
            if data.name ~= 'minecraft:stone' then
                replace()
			end
		else
			replace()
        end
    end
    returnToFloor()
end