w = peripheral.wrap("left")
w.open(1)
function range()
  for i  = 1, 9 do
    turtle.digDown()
    turtle.placeDown()
    turtle.forward()
  end
end
function rotate_L()
  turtle.turnLeft()
  turtle.forward()
  turtle.digDown()
  turtle.placeDown()
  turtle.turnLeft()
end
function rotate_R()
  turtle.turnRight()
  turtle.forward()
  turtle.digDown()
  turtle.placeDown()
  turtle.turnRight()
end
function comeback()
  turtle.turnRight()
  turtle.turnRight()
  for b = 1, 2 do
    for a = 1, 9 do
      turtle.forward()
    end
    turtle.turnRight()
  end
  for p = 2, 16 do
    turtle.select(p)
    turtle.dropDown()
  end
end
function go()
  turtle.select(1)
  w.transmit(1, 1, "La turtle du blé fonctionne !")
  i = 0
  while i < 9 do
    range()
    if i % 2 == 0 then
      rotate_R()
    else
      rotate_L()
    end
    i = i +1
  end
  comeback()
end
function refuel()
    fuel = turtle.getFuelLevel()
    if fuel < 80 then
      print("BESOIN DE FUEL !!! SLOT 2 MINIMUM 5 COAL")

      w.transmit(1 ,1, "La turtle du FarmLand de blé a besoin de Fuel !")
      turtle.select(2)
      turtle.reFuel()
    end
end

while true do
  refuel()
  go()
  os.sleep(900)
end