title: Game Center Simultaneous Turns
body: <p>I'm new to iOS (although I do have a lot of C++ experience) and I am working on a turn-based card game using gamecenter. Here's the catch - The player who's turn it is is the judge and waits for all OTHER players to play a card before the turn is over. Is there a way to do this in Game Center, so all players chose what to do simultaneously and once all have done so, the judge is notified, makes a decision, and then passes priority to the next player? For example, say we start turn 1. I ask the question, @"What is your favorite color?" to all players passing them a gamestate which has that as the question and them not having answered it. Then you respond, @"Green", and our friend Steve responds @"Blue". I then decide which is better, give one of you a point, and then whoever I gave the point becomes the new judge. My question is, how do I allow all players to respond simultaneously, rather than sequentially. I know that, worst case, I could sequentially loop around through players until it comes back to me, then judge it, but this would slow down my game and make it less fun. Is there a way to do this simultaneously?</p>