tree

-- tree
-- by odduser 2013-02-08
-- http://pastebin.com/SXDQdDeg
-- saplings in slot 16
turtle.select(1)
while true do
  echo("Waiting for tree to grow")
  if turtle.compare() then
    turtle.dig()
    turtle.forward()
    local up = 0
    while turtle.detectUp() do
      turtle.digUp()
      turtle.up()
      up = up + 1
    end
    for x = 1,up do turtle.down() end
    turtle.back()
    turtle.select(16)
    turtle.place()
  else
    if turtle.getItemCount(15) ~= 0 then
      turtle.select(15)
      turtle.place()
      turtle.select(1)
    end
  end
  sleep(3)
end