lumberbot v0.1

local robot = require("robot")
local comp = require("computer")
local component = require("component")
local inv = component.inventory_controller
local term = require("term")
local sides = require("sides")

h = 0

function rechTool()
  robot.select(2)
  robot.turnRight()
  robot.drop()
  os.sleep(2)
  robot.suck()
  robot.turnLeft()
end

function checkTool()
  robot.select(2)
  inv.equip()
  dur = robot.durability()
  inv.equip()
  return dur
end

function routine()
  _, det = robot.detect()
  if det == 'solid' then
    robot.swing()
    robot.use(1, true)
    robot.use(1, true)
    while robot.detectUp() == 0 do
      robot.up()
      h = h+1
    end
    for i = 1, 3 do
      robot.up()
      robot.swingUp()
      h = h+1
    end
    for i =  1, h do
      robot.down()
    end
    h = 0
    robot.use(1, true)
    robot.suckUp()
  elseif det == 'passable' then
    robot.select(2)
    inv.equip()
    for i = 1, 10 do
      robot.use()
    end
    robot.select(2)
    inv.equip()
  else
    robot.select(1)
    robot.place()
  end
end

function lumbMain()
  b = 0
  while robot.count(16) < 63 do
    routine()
    b = b + 1
    if b == 100 then
      if checkTool() == 0 then
        break
        rechTool()
      end
    b = 0
    end
  end
  for i = 4, 16 do
    robot.select(i)
    robot.dropDown()
  end
  lumbMain()
end
lumbMain()