Shaft

os.loadAPI("progressAPI.lua")

fuelUse         = 5

length          = 0
startFuel       = 0
minReqFuelLevel = 0

function termClear()
    term.clear()
    term.setCursorPos(1,1)
end

function checkFuel()
    if startFuel <= minReqFuelLevel then
        error("Not enough fuel..")
    end
end

function startUp()
    termClear()
    print("Enter length of shaft:")
    length = read() - 1
    minReqFuelLevel = length * fuelUse
    turtle.select(1)
    startFuel = turtle.getFuelLevel()
    checkFuel()
end

function sendProgress(loop, duration)
    rednet.open("right")

    msg = loop .. ";" .. duration

    rednet.broadcast(msg)

    rednet.close("right")
end

function row()
    turtle.dig()
    turtle.forward()
    turtle.digDown()
    turtle.digUp()
    turtle.turnLeft()
    turtle.dig()
    turtle.forward()
    turtle.digDown()
    turtle.digUp()
    turtle.back()
    turtle.turnRight()
    turtle.turnRight()
    turtle.dig()
    turtle.forward()
    turtle.digDown()
    turtle.digUp()
    turtle.back()
    turtle.turnLeft()
end

startUp()

for i = 0, length do
    termClear()
    progressAPI.statusBar(i, length)
    sendProgress(i, length)

    row()
end