cover

local args = {...}
local x = args[1]
local y = args[2]
local slot = 1

function line()
        for i=1, y do
        turtle.placeDown()
        turtle.forward()
        checkblocks()
        end
end


function checkblocks()
        if turtle.getItemCount(slot) < 1 then
        slot = slot+1
                turtle.select(slot)
        end
end

function cover()
	for j=1,math.floor(x/2) do
	line()
	turtle.turnRight()
	turtle.forward()
	turtle.turnRight()
	turtle.forward()
	line()
	turtle.turnLeft()
	turtle.forward()
	turtle.turnLeft()
	turtle.forward()
	end
end

x = args[1]
y = args[2]
slot = 1
cover()