--Empty
function dump()
  turtle.select(3)
  for i = 4,16 do
    turtle.select(i)
    turtle.drop()
  end
end

--Need to empty?
function checkFull()
  if turtle.getItemCount(16) > 0 then
    turtle.turnRight()
    dump()
    turtle.turnLeft()
  end
end

while true do
  checkFull()
  turtle.select(1)
  turtle.place()
  turtle.select(2)
  while turtle.compare() == false do
    sleep(10)
  end
  while turtle.detect() == true do
    turtle.dig()
    turtle.digUp()
    turtle.up()
  end
  while turtle.detectDown() == false do
    turtle.down()
  end

end