local length = 30
local rows = 5
local count = length

turtle.refuel()
turtle.digUp()
turtle.dig()
turtle.digDown()
turtle.up() --omhoog

while rows > 0 do
  print("Starting row")
  count = length
  while count > 0 do
    turtle.digUp()
    turtle.digDown()
    turtle.dig()
    turtle.forward()
    count = count - 1
  end

  print("Turn around 180")
  count = length + 1
  turtle.turnRight()
  turtle.turnRight()

  print("Return to begin.")
  while count > 0 do
    turtle.forward()
    count = count - 1
  end

  print("Move to next Row")
  turtle.turnLeft()
  turtle.forward()
  turtle.forward()
  turtle.forward()
  turtle.turnLeft()
  rows = rows - 1
end