clean optimize and improve screenx = 1
screeny = 1
cyclex = true
cycley = true
function invRenderer()
	dxDrawRectangle ( screenx, screeny, 100, 100, white)
	if cyclex then screenx = screenx+1 else screeny = screenx-1 end
	if cycley then screeny = screeny+1 else screeny = screeny-1 end
	if screenx == screenW-100 or screenx == 1 then cyclex = not cyclex end
	if screeny == screenH-100 or screeny == 1 then cycley = not cycley end
end