wheatie

function Dump()
  for i = 3,16 do
    if turtle.getItemCount(i)>0 then
      turtle.select(i)
      turtle.dropDown()
    end
  end
end

function Plant()
  if turtle.getItemCount(1)>1 and
     turtle.getItemCount(2)>1 then
    turtle.dig()
    turtle.suck()
    turtle.select(1)
    turtle.place()
    turtle.select(2)
    turtle.place()
    turtle.dig()
    turtle.suck()
  end
end

--Main Program--
while true do
  while redstone.getInput("back") == true do
    sleep(0.4)
  end
  if turtle.getItemCount(1)<2 then
    turtle.select(1)
    turtle.suckDown()
  end
  if turtle.getItemCount(2)<2 then
    turtle.select(2)
    turtle.suckUp()
  end

  Plant()
  Dump()

sleep(0.5)
end