Turtle Tree Farm

inv = peripheral.wrap("right")
height = 1
saplings = 1
bonemeal = 2
local tArgs = {...}
turtle.select(1)

local function getSaplings()
  turtle.turnLeft()
  inv.suckSneaky(0,64-turtle.getItemCount(saplings))
  turtle.turnRight()
end

local function getBonemeal()
  turtle.turnRight()
  turtle.select(bonemeal)
  inv.suckSneaky(0,64-turtle.getItemCount(bonemeal))
  turtle.turnLeft()
end

local function plant()
  turtle.place()
  turtle.select(2)
  turtle.place()
  turtle.select(1)
end

if tArgs[1] == nil then
  tArgs[1] = 1
end

for t = 1,tonumber(tArgs[1]) do
  times = 0
  if turtle.getItemCount(saplings) < 64 then
    getSaplings()
  end
  if turtle.getItemCount(bonemeal) < 64 then
    getBonemeal()
  else
    print("I don't need bonemeal")
  end

  while times ~= 64 and turtle.getItemCount(saplings) > 0 and turtle.getItemCount(bonemeal) > 0  and turtle.getFuelLevel() > 800 do
    for i = 1,4 do
      turtle.forward()
    end

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

    while turtle.detectUp() do
      turtle.digUp()
      turtle.up()
      height = height+1
    end

    for i = 1,height do
      turtle.down()
    end
    turtle.back()
    sleep(10)
    plant()
    times = times+1
    print(times)
  end
  for i = 1,4 do
    turtle.back()
  end
  for i = 1,8 do
    turtle.select(i)
    if turtle.compareTo(16) then
      turtle.dropDown()
    else
      print("Not wood!")
      if turtle.compareTo(14) then
        print("It's saplings!")
        turtle.transferTo(1)
     elseif turtle.compareTo(15) then
       print("It's bonemeal!")
       turtle.transferTo(2)
      end
    end
  end
  turtle.select(1)
  print("Done with rotation:"..t)
end