tunnel

local function FuelCheck()
    --get fuel level
    --if fuel < 5
        --select slot 1, refuel
            --if refuel false
                --break
end

local function Tunneling(distance)
    for i = 1, distance do
        FuelCheck()
        turtle.dig()
        turtle.forward()
        turtle.digUp()
    end
end



local length = 0

term.write("Tunnel length: ")
length = tonumber(read())


--select slot 1, turtle.refuel()

if length>0 then
  Tunneling(length)
end


--Things to do:
-- if inventory is full return to chest to dump (can trying doing turtle.collect() and if it fails slots can't take new/different items)
-- if fuel is getting low check to make sure we have enough to go back