TreeFarming

local t = turtle
local h = 0

while true do
    local success, data = turtle.inspect()
    if success and data.name == "minecraft:sapling" then
        t.place()
    else
        t.dig()
        t.forward()
        t.select(3)
        while t.compareUp() == true do
            t.digUp()
            t.up()
            h = h + 1
        end
        for i = 1,h do
            t.down()
        end
        t.back()
        t.select(2)
        t.place()
        t.select(1)
    end
end