upordown

function checkFuel()
    turtle.select(1)
    while turtle.getFuelLevel() < 30 do
        turtle.refuel(1)
    end
end

function forwardDig()
    turtle.dig()
    turtle.forward()
    turtle.digUp()
    turtle.digDown()
end

function startTime()
    term.clear()
    term.setCursorPos(1,1)
    write("Num Floors?  ")
    num = tonumber(read())
    write("1 for Down or 2 for Up.  ")
    direc = tonumber(read())

end

function stairBit()
    for i=1,4 do
        forwardDig()
        turtle.turnRight()
        forwardDig()
        if direc ~= 1 then
            turtle.up()
            turtle.digUp()
            turtle.turnLeft()
            turtle.turnLeft()
            turtle.forward()
            turtle.digUp()
            turtle.turnRight()
        else
            turtle.down()
            turtle.digDown()
            turtle.turnLeft()
            turtle.turnLeft()
            turtle.forward()
            turtle.digDown()
            turtle.turnRight()
        end
    end
end

function landingBit()
    forwardDig()
    forwardDig()
    turtle.turnRight()
    forwardDig()
    turtle.turnRight()
    forwardDig()
    turtle.turnLeft()
    forwardDig()
    turtle.turnLeft()
    forwardDig()
    turtle.turnRight()
    forwardDig()
    turtle.turnRight()
    forwardDig()
end

startTime()

term.clear()
print(num)
print(direc)

for i=1,num do
    checkFuel()
    stairBit()
    landingBit()
end