function fuelUp()
    turtle.select(1)
    needsFuel = turtle.getFuelLevel()
    minimumFuelLevel = 10
    hasFuel = turtle.getItemCount(1)
    useFuel = turtle.refuel()
    if needsFuel ~= "unlimited" then
        if tonumber(needsFuel) < tonumber(minimumFuelLevel) then
                if hasFuel > 0 then
                        turtle.refuel(1)
                else
                        print("Please insert fuel into slot 16")
                        repeat os.sleep(1)
                        until tonumber(turtle.getItemCount(16)) > 0
                        fuelItUp()
                end
        end
    end
    turtle.select(1)
end

function safeForward()
	while not turtle.forward() do
		turtle.attack()
		turtle.dig()
	end
end

function safeDown()
	while not turtle.down() do
		turtle.digDown()
	end
end

function farmRow(length)
	fuelUp()
	for i=0,length do
		safeForward()
		turtle.digDown()
	end
end

function goRight()
	turtle.turnRight()
	safeForward()
	turtle.turnRight()
end

function goLeft()
	turtle.turnLeft()
	safeForward()
	turtle.turnLeft()
end

function dropToChest()
	turtle.turnRight()
	turtle.turnRight()
	for i=1,14 do
		turtle.select(i)
		turtle.dropDown()
	end
	turtle.select(1)
	turtle.turnLeft()
	turtle.turnLeft()
end

function toChest()
	safeForward()
	safeDown()
	turtle.turnRight()
	for i=0,18 do
	safeForward()
	end
	turtle.turnRight()
	safeForward()
	turtle.up()
end

function main()
	print("Poczatek")
	fuelUp()
	for i=0,9 do
		print(i)
		farmRow(13)
		goRight()
		farmRow(13)
		goLeft()
	end
	print("toChest")
	toChest()
	dropToChest()
end