local function checkFuel()
  if turtle.getFuelLevel() < 1 then
    turtle.select(1)
    turtle.refuel(1)
  end
end

local function column()
  while turtle.digUp() do
    turtle.dig()
    checkFuel()
    turtle.up()
  end
  turtle.dig()

  checkFuel()
  while turtle.down() do
    checkFuel()
  end
end

local function digmove()
  checkFuel()
  turtle.dig()
  turtle.forward()
end

local function plant()
  turtle.select(2)
  turtle.forward(1)
  turtle.place()
  turtle.turnRight()
  turtle.forward(1)
  turtle.turnLeft()
  turtle.place()
  turtle.turnRight()
  turtle.turnRight()
  turlte.forward(1)
  turtle.turnRight()
  turtle.turnRight()
  turtle.turnRight()
  turtle.place()
  turtle.turnLeft()
  turtle.forward(1)
  turtle.turnRight()
  turtle.place()
end

local function dropwood()
  for i=3, 16 do
  turtle.select( i)
  turtle.dropDown()
  end
  turtle.select(3)
  end

while true do --Always loop

  dropwood()

  plant()

  turtle.up()
  local Wait, Correct = "0", "1"
	while Wait~=Correct do
	  if turtle.detect()==true then
	Wait = "1"
  print("success")
	end
	sleep(5)
  end
	turtle.down()

digmove()
column()
turtle.turnRight()
digmove()
turtle.turnLeft()
column()
turtle.turnLeft()
digmove()
digmove()
turtle.turnRight()
column()

	turtle.turnRight()
	turtle.forward(1)
	turtle.turnRight()
	turtle.forward(1)
	turtle.turnRight()
	turtle.turnRight()

end