local xSize = 2
local ySize = 2
local seedSlot = 1
local _TURN = false

function checkPlant()
	sleep(.1)
	local is, plant = turtle.inspectDown()
	sleep(.1)
	if plant.metadata ~= nil then
		if plant.metadata > 6 then
			turtle.digDown()
			turtle.select(seedSlot)
			turtle.placeDown()
		end
	end
end

function goChest()
	for i=1,xSize do
		turtle.forward()
	end
	turtle.turnRight()
	for i=1,ySize do
		turtle.forward()
	end
	turtle.down()
	turtle.turnLeft()
	dropChest()
	turtle.turnRight()
	turtle.turnRight()
end

function dropChest()
	for i=1,16 do
		if i ~= seed then
			turtle.select(i)
			turtle.drop()
		end
	end
end

function checkAll()
	for ii=1,ySize do
		for i=1,xSize - 1 do
			checkPlant()
			turtle.forward()
		end
		checkPlant()
		if _TURN == false then
			turtle.turnRight()
			turtle.forward()
			turtle.turnRight()
			else
			turtle.turnLeft()
			turtle.forward()
			turtle.turnLeft()
		end
		_TURN = not _TURN
	end
end


while true do
	term.clear()
	term.setCursorPos(1,1)
	print("Yakit kontrolu yapiliyor.")
	if turtle.getFuelLevel() > xSize * ySize then
		print("Yakit yeterli.")
		print("Isleme baslamak icin herhangi tusa basin.")
		read()
		turtle.up()
		turtle.forward()
		checkAll()
		if (number % 2 == 0) then
			turtle.turnRight()
			turtle.forward()
			turtle.turnRight
		end
		goChest()
	else
	print("Yetersiz yakit. Lutfen en son slota yakit koyun.")
	print("Yakit koyduktan sonra herhangi tusa basin.")
	read()
	turtle.select(16)
	turtle.refuel()
	sleep(.5)
	end
end

print("Done")