function turnright()
        turtle.turnRight()
        moveforward()
        turtle.turnRight()
end

function turnleft()
        turtle.turnLeft()
        moveforward()
        turtle.turnLeft()
end

function checkblockcount()
        if turtle.getItemCount(curslot) == 0 then
                selnextslot()
        end
end

function selnextslot()
        curslot = curslot + 1
        if curslot > 16 then
                print("Out of blocks, terminating")
                error()
        end
        turtle.select(curslot)
end

function place()
        checkblockcount()
        turtle.placeDown()
		turtle.forward()
end


function returntostart()
        if orient == true then
                turtle.turnRight()
                for i = 1, width - 1 do
                        moveforward()
                end
                turtle.turnRight()
                moveback()
            elseif orient == false then
                turtle.turnLeft()
                for i = 1, width - 1 do
                        moveforward()
                end
                turtle.turnRight()
                                for i = 1, length do
                                        turtle.back()
                                end
        end
end
----------

for i=1, 3 do
	place()
end
turnright()
for i=1, 3 do
	place()
end
turnleft()
for i=1, 3 do
	place()
end
returntostart()