c

local movedblocks = 0
local fuelLow = false
local check = true
local working = true

turtle.refuel(1)
print "ok done coffee"

while working == true do
if check == true then
  if turtle.getFuelLevel() < 0 then
  turtle.refuel(1)
  check = false
  fuelLow = true
  end

  if turtle.getFuelLevel() > 0 then
    fuelLow = false
  end
end

if fuelLow == false then
  turtle.digUp()
  turtle.forward()
  movedblocks = movedblocks + 1
  turtle.dig()
  check = true
end

if turtle.getItemCount(2) < 64 then
  working = true
  else
  working = false
end
os.sleep(0.25)
end

while working == false do
  movedblocks = movedblocks - 1
  turtle.refuel(movedblocks)
  turtle.back(movedblocks)
  os.sleep(0.15)
end