print("welcome")
print("place stopper block in slot 1")
print("place stopper block2 in slot 2")
function fuel()
	if turtle.getFuelLevel() < 100 then
		turtle.select(9)
		turtle.suckUp()
		turtle.refuel()
		empty = turtle.getItemCount(9)
		if  empty > 0 then

			turtle.dropUp(empty)
		end
	end
end

function stopper()
	turtle.select(3)
	while turtle.compare() == false do
		for b=0, 9 do
			turtle.select(1)
			if turtle.compare() then
				turtle.turnLeft()
			end
			turtle.select(2)
			if turtle.compare() then
				turtle.turnRight()
			end
			turtle.dig()
			turtle.forward()
		end
	end
end
function drop()
	for i=3, 16 do
		local count = turtle.getItemCount(i)
		if count > 0 then
			turtle.select(i)
			turtle.dropDown()
		end
		i = i + 1
	end
	print("inventory empty of shit =]")
end


for a=0, 9 do
print("detecting sugar cane")
	if	turtle.detect() then
		fuel()
		stopper()
		drop()
	else
		print("no sugar cane detected")
	end
 	os.sleep(5)

end