farm

--- farming first just move

local tArgs = { ... }
if #tArgs ~= 2 then
	print( "Usage: farm <length> <width>" )
	return
end

local length  = tonumber( tArgs[1] )
local width  = tonumber( tArgs[2] )
local leftRight = 0
print ( "Farming"..length.."by "..width.."." )

--- move in a zig zag fashion around the farm using nested loops

for w=1, width do
	for l=1, length do
		turtle.digDown()
		turtle.select(16)
		turtle.placeDown()
		turtle.select(15)
		turtle.placeDown()
		turtle.forward()
	end

	if leftRight == 0 then
		turtle.turnRight()
	else
		turtle.turnLeft()
	end

	turtle.forward()

	if(leftRight) == 0 then
		turtle.turnRight()
	else
		turtle.turnLeft()
	end

	if leftRight == 0 then
		leftRight = 1
	else
		leftRight = 0
	end
end

--- Get back to where you once belonged.
--- Need to code else for even numbered width later

	if width%2 ~= 0 then
		for n=1, length do
			turtle.forward()
		end

		turtle.turnRight()

		for n=1, width do
			turtle.forward()
		end
		turtle.turnRight()
	end