-- variable 'selection' = current slot
-- ^ is not made in this script ^
-- slot 16 is where the enderchest is

-- Note: This needs the ender storage mod
-- to work properly, not the implemented
-- ender chests!

function checkInvSpace()
  for i = 1,15 do
    if turtle.getItemSpace(i) > 0 then
      turtle.select(i)
      return true
    end
  end
  if turtle.getItemSpace < 1 then
    return false
  end
end

if turtle.getItemSpace(selection) < 1 then
  if not checkInvSpace() then
    turtle.select(16)
    turtle.placeUp()
    for j = 1,15 do
      turtle.select(j)
      turtle.dropUp()
    end
    turtle.select(16)
    turtle.digUp()
    turtle.select(1)
  end
end