tree

path = 16
direction = 0

function plant()
  turtle.select(1)
  if (turtle.getItemCount() <= 10) then
    for z = 3,16 do
      turtle.select(z)
      turtle.transferTo(1)
    end
  elseif (turtle.detect() == false) then
    turtle.place()
  end
end

function detect()
  turtle.select(2)
  if (turtle.compare()) then
    felling()
  else
    plant()
  end
end

function felling()
  turtle.dig()
  turtle.forward()
  while (turtle.detectUp()) do
    turtle.digUp()
    turtle.up()
    for i = 1,4 do
      turtle.dig()
      turtle.turnRight()
    end
  end
  goDown()
  turtle.back()
end

function goDown()
  while (turtle.down()) do
  end

  if (turtle.inspectDown()) then
    local block, type = turtle.inspectDown()
    if (type.name ~= "minecraft:dirt") then
      turtle.digDown()
      goDown()
    end
  end
end

function pathing()
  for x = 2,path do
    detect()

    if (direction == 1) then
      turtle.turnRight()
      turtle.suck()
      turtle.forward()
      turtle.turnLeft()
    else
      turtle.turnLeft()
      turtle.suck()
      turtle.forward()
      turtle.turnRight()
    end

    detect()
  end

  if (direction == 1) then
    direction = 0
    bank()
  else
    direction = 1
  end
end

function bank()
  for z = 3,15 do
    turtle.select(z)
    turtle.transferTo(1)
    if (turtle.dropDown() == false and turtle.getItemCount() > 0) then
      while (true) do
        turtle.turnRight()
      end
    end
  end
end

function main()
   while (true) do
     pathing()
     sleep(60)
   end
end

main()