local width = 7
local length = 12
local startLeft = true

local function farmSquare(w, l, left)
	local turnLeft = not left
	local slot = 1

	turtle.select(slot)

	for x = 1, w do
		for y = 1, l do
			turtle.digDown()
			turtle.digDown()
			turtle.placeDown()

			if turtle.getItemCount(slot) == 0 then
				slot = slot + 1
				turtle.select(slot)
			end

			if y ~= l then
				turtle.forward()
			end
		end

		if x ~= w then
			if turnLeft then
				turtle.turnLeft()
				turtle.forward()
				turtle.turnLeft()
				turnLeft = false
			else
				turtle.turnRight()
				turtle.forward()
				turtle.turnRight()
				turnLeft = true
			end
		else
			if left then
				turtle.turnLeft()
			else
				turtle.turnRight()
			end

			for i = 1, (w - 1) do
				turtle.forward()
			end

			if left then
				turtle.turnRight()
			else
				turtle.turnLeft()
			end

			for i = 1, (l - 1) do
				turtle.back()
			end
		end
	end
end

print('starting')

farmSquare(width, length, startLeft)

print('finished')