Turtle

function unload()
	for i = 2,16,1 do
		turtle.select(i)
		os.sleep(0.1)
		if i==2 then
			if turtle.getItemCount(2)>1 then
				turtle.dropUp(turtle.getItemCount(2)-1)
			end
		else
			turtle.dropUp()
		end
		os.sleep(0.1)
	end
end

function refuel()
	if turtle.getFuelLevel() < 1000 then
		for i = 2,16,1 do
			turtle.select(i)
			os.sleep(0.1)
			while turtle.getFuelLevel() < 1500 do
				if(turtle.refuel(1) == false) then
					break
				end
			end
		end
	end
end

if redstone.getInput("back")==true then
	refuel()
	unload()

	if turtle.getFuelLevel() < 300 then
		os.reboot()
	end

	--Move down
	while turtle.down() do
		print("Hop")
	end

	-- Suck
	for i = 1,16,1 do
		turtle.select(i)
		os.sleep(0.1)
		turtle.suck()
		os.sleep(0.1)
	end

	turtle.up()
	turtle.up()

	--Filter
	for i = 1,16,1 do
		turtle.select(i)
		os.sleep(0.1)
		if turtle.compare()==false then
			turtle.dropDown()
			os.sleep(0.1)
		else
			turtle.transferTo(1)
		end
	end
	while redstone.getInput("back")==false do
		turtle.up()
	end
else
	--Move down
	while turtle.down() do
		print("Hop")
	end

	if redstone.getInput("left")==true then
		while redstone.getInput("back")==false do
			turtle.up()
		end
		os.reboot()
	end

	for i = 1,12,1 do
		turtle.dig()
		turtle.digUp()
		turtle.up()
	end

	while turtle.down() do
		print("Hop")
	end

	turtle.select(1)
	turtle.place()

	while redstone.getInput("back")==false do
		turtle.back()
	end

	os.reboot()
end


while true do
	while turtle.forward() do
		print("Go")
	end

	if redstone.getInput("front")==true then
		break
	end

	turtle.select(1)
	if turtle.compare() then
		turtle.dig()
	elseif turtle.detectDown() then
		while turtle.detect() do
			turtle.dig()
			turtle.digUp()
			turtle.up()
		end
		while turtle.down() do
			print("Hop")
		end
	else
		turtle.dig()
	end
end

while redstone.getInput("back")==false do
	turtle.select(1)
	turtle.place()
	turtle.back()
end

for i = 1,1000,10 do
	print(i)
	os.sleep(10)
end
os.reboot()