Corridor

-- -----------------------------
-- Corridor
-- pastebin get BQ0AnBu9 corr
-- -----------------------------



function checkFuel()
  while turtle.getFuelLevel() < 10 do
    turtle.select(1)
    turtle.refuel(1)
    if turtle.getFuelLevel() < 10 then
      sleep(5)
    end
  end
end

function light()
  while turtle.getItemCount(2) < 2 do
    sleep(5)
  end
  turtle.digUp()
  turtle.digDown()
  turtle.select(2)
  turtle.placeDown()
end

function forward()
  checkFuel()
  while not turtle.forward() do
    if turtle.detect() then
      turtle.dig()
    else
      turtle.attack()
    end
  end
end

function dig()
  turtle.digDown()
  turtle.digUp()
  turtle.dig()
  if turtle.getItemCount(16) > 0 then
    while turtle.getItemCount(16) > 0 do
      sleep(5)
    end
    turtle.select(3)
  end
  forward()
end

while true do
  forward()
  for n = 1, 3 do
    dig()
  end
  light()
  turtle.turnLeft()
  forward()
  for n = 1, 5 do
    dig()
  end
  turtle.turnLeft()
  turtle.turnLeft()
  dig()
  for n = 1, 6 do
    forward()
  end
  for n = 1, 5 do
    dig()
  end
  turtle.turnLeft()
  turtle.turnLeft()
  dig()
  for n = 1, 5 do
    forward()
  end
  turtle.turnRight()
end