TunnelBore

fuel = turtle.getFuelLevel()
peripheral.find("modem")
rednet.open("left")
while true do
sid,msg,prot = rednet.receive(.5)
if prot == "init" then
     while fuel < msg + 20 do
        term.clear()
        term.setCursorPos(1,1)
        print("NEED FUEL, PUT COAL IN SLOT 16")
        turtle.select(16)
        turtle.refuel()
        os.sleep(1)
        fuel = turtle.getFuelLevel()
    end
    print(msg)
    os.sleep(2)
    for i = 1 ,tonumber(msg) do
        term.clear()
        term.setCursorPos(1,1)
        print(msg-i.." remaining")
        while turtle.detect() do
            turtle.dig()
        end
        turtle.forward()
        turtle.digUp()
        turtle.digDown()
        if i == msg then
            rednet.broadcast("fin","fin")
        else
        end
    end
end
end
os.shutdown()