Tree hugger turtle. 2*2, any tree height | v1.3

saplingSlot = 1

function drop_all_items()
    for i = 2, 15 do
        turtle.select(i)
        turtle.dropDown( turtle.getItemCount(i) )
        sleep(0.5)
    end
    turtle.select( saplingSlot )
end

function cutUp()
    turtle.digUp()
    turtle.up()
end

function cutDown()
    turtle.digDown()
    turtle.down()
end

function run()
    local height = 0
    turtle.select( saplingSlot )

    -- chop down the first block
    turtle.dig()
    turtle.forward() -- ]]

    while turtle.digUp()==true do
        turtle.dig()
        turtle.up()
        height = height + 1 --count height of the tree
    end

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

    for i=1, height do
        cutDown()
        turtle.dig()
    end

    --print("End of tree or no blocks found. End of while")

    turtle.place()

    turtle.turnRight()
    turtle.back()
    turtle.place()

    turtle.turnLeft()
    turtle.place()
    turtle.back()

    turtle.place()

    drop_all_items()
    print("Jobs done! Current height: " ..height)
end

while true do
print("while")
    if turtle.compare()==true then --sleep if it's the sapling
        sleep(15)
    else
        run()
        break --you may replace this with sleep(120)
        --so the turtle runs full automatically
    end
end