minedown

local TRACKING_SERVER_ID = nil

function forward()
        while not turtle.forward() do
                turtle.dig()
                os.sleep(0.2)
        end
end

function step()
    turtle.dig()
    turtle.digDown()
    turtle.down()
    if not turtle.detectDown() then
        turtle.select(1)
        turtle.placeDown()
    end
    forward()
end

local trackingEnabled = fs.exists("tracking") and os.loadAPI("tracking")
print("Cobble auf Slot 1")
print("Aktuelle Höhe:")
s = tonumber(io.read())-12

if trackingEnabled then
    tracking.setStatus("minedown", 0, s, TRACKING_SERVER_ID)
end
for i = 1, s do
    step()
    if trackingEnabled then
        tracking.setStatus("minedown", i, s, TRACKING_SERVER_ID)
    end
end