title: Xcode5 In my simple flappy bird clone, how would I generate tunnels faster?
body: <p>My flappy bird clone doesn't use Spritebuilder. It is just a simple app, which I find almost exactly the same. I can regenerate tunnels every time they reach the end of the screen but that just makes the game slow because the bird has to wait the entire screen for another tunnel. How could I generate tunnels as quick (or close to) as the real flappy bird?</p>