Table of Contents

Preface; Conventions Used in This Book; Using Code Examples; Safari® Books Online; How to Contact Us; Acknowledgments; Chapter 1: Game Center; 1.1 Introducing GCD and Block Objects; 1.2 Creating Game Center Accounts; 1.3 Setting Up Game Center for an iOS App; 1.4 Adding the Game Kit Framework; 1.5 Authenticating the Local Player in Game Center; 1.6 Retrieving the Local Player’s Information; 1.7 Adding Friends in Game Center; 1.8 Retrieving the Local Player’s Friends Information; 1.9 Creating Leaderboards in iTunes Connect; 1.10 Reporting Scores to Leaderboards; 1.11 Retrieving Leaderboards Information Programmatically; 1.12 Displaying Leaderboards to Players; 1.13 Creating Achievements in iTunes Connect; 1.14 Reporting Achievements to Game Center; 1.15 Retrieving Achievements Information Programmatically; 1.16 Displaying Achievements to Players; 1.17 Supporting Multiplayer Games and Matchmaking; 1.18 Handling Players’ State Changes in Multiplayer Games;