fafarm

-- harvest
function harvest()
  x = 0

  term.clear()
  term.setCursorPos(15,6)
  print("** working **")

  turtle.dig()
  turtle.forward()
  turtle.dig()

  while turtle.detectUp() == true do
    turtle.digUp()
    turtle.up()
    turtle.dig()
    x = x+1
  end

  turtle.turnLeft()
  turtle.dig()
  turtle.forward()
  turtle.turnRight()
  turtle.dig()

  for i=1, x do
    turtle.digDown()
    turtle.down()
    turtle.dig()
  end

  turtle.back()
  turtle.turnLeft()
  turtle.back()
  turtle.turnRight()

  x = 0

end

--plant
function plant()
  term.clear()
  term.setCursorPos(15,6)
  print("** working **")
  turtle.digUp()
  turtle.up()
  turtle.forward()
  turtle.select(16)
  turtle.placeDown()
  turtle.forward()
  turtle.placeDown()
  turtle.turnLeft()
  turtle.forward()
  turtle.turnLeft()
  turtle.placeDown()
  turtle.forward()
  turtle.placeDown()
  turtle.dig()
  turtle.forward()
  turtle.turnLeft()
  turtle.forward()
  turtle.turnLeft()
  turtle.down()
end

-- refuel
function fuel()
  while turtle.getFuelLevel() < 1000 do
    turtle.select(15)
    turtle.suck(2)
    turtle.refuel(2)
  end
end

--drop

function drop()
  turtle.select(1)
  turtle.dropDown()
  turtle.select(2)
  turtle.dropDown()
  turtle.select(3)
  turtle.dropDown()
  turtle.select(4)
  turtle.dropDown()
  turtle.select(5)
  turtle.dropDown()
  turtle.select(6)
  turtle.dropDown()
  turtle.select(7)
  turtle.dropDown()
  turtle.select(8)
  turtle.dropDown()
  turtle.select(9)
  turtle.dropDown()
  turtle.select(10)
  turtle.dropDown()
  turtle.select(11)
  turtle.dropDown()
  turtle.select(12)
  turtle.dropDown()
  turtle.select(13)
  turtle.dropDown()
  turtle.select(14)
  turtle.dropDown()
  turtle.select(15)
  turtle.dropDown()
  turtle.select(16)
  turtle.dropDown()
end

--compare
function compare()
turtle.select(16)
    while turtle.compare() == true do
      term.clear()
      term.setCursorPos(15,6)
      print("** sleep: zZzZzZz **")
      sleep(15)
    end
    harvest()
end

while true do
  compare()
  turtle.turnLeft()
  drop()
  turtle.turnLeft()
  fuel()
  turtle.turnLeft()
  turtle.select(16)
  turtle.suck(5)
  turtle.turnLeft()
  plant()
end