Beginning iOS Game Center and Game Kit · For iPhone, iPad, and iPod touch by Richter, Kyle -- Read -- Imperial Library of Trantor

Index

Cover Title Copyright Dedication Contents at a Glance Contents About the Author About the Technical Reviewer Acknowledgments Foreword: The Legend of Kyle, Game Hero Introduction Chapter 1: Getting Started with Game Kit and Game Center

Game Kit: An Overview

Networking Game Center Voice Chat

Sample Game: UFOs

UFOs: Understanding the Game

UFOs: Examining the Source Code

Setting Up the Accelerometer Delegate Drawing the Player to the View Setting Up Cows, Beams, and Scores Handling Rotation Events Adding Player Movements Watching for Touch Events Spawning and Moving Cows Performing a Hit Test with a UIImage Abducting a Cow Configuring iTunes Connect for Game Center

Getting Started with iTunes Connect

Configuring Game Center in iTunes Connect

Summary

Chapter 2: Game Center: Setting Up and Getting Started

Testing for Game Center Authenticating with Game Center

Modifying the GameCenterManager Class Authenticating from UFOViewController

The Sandbox Watching for Status Changes Working with GKLocalPlayer Retrieving a Friends List Friend List Avatars Working with Players Summary

Chapter 3: Leaderboards

Why a Leaderboard? An Overview of Leaderboards in Game Center

Benefits of Using Apple's Leaderboard GUI vs. a Custom GUI

Configuring a Leaderboard in iTunes Connect Posting a Score Setting a Default Leaderboard Adding Score Posting to UFOs Handling Failures When Submitting a Score Presenting a Leaderboard Customizing the Leaderboard

Modifying GameCenterManager Filtering Results on a Custom Leaderboard Displaying the Custom Leaderboard

Mapping a Player ID Local Player Score A Better Approach Summary

Chapter 4: Achievements

Why Achievements? An Overview of Achievements in Game Center

Benefits of Using Apple's Achievement GUI vs. a Custom GUI

Configuring Achievements in iTunes Connect

Presenting Achievements Modifying Achievement Progress

Resetting Achievements Adding Achievement Hooks

Another Convenience Method Achievement Completion Feedback iOS 5 Completion Banners Custom Achievement GUI Recovering from a Submit Failure

Summary

Chapter 5: Matchmaking and Invitations

Why Add Matchmaking and Invitations to Your App? Common Matchmaking Scenarios Creating a New Match Request Presenting Match GUI Handling Incoming Invitations Auto-Matching Matching Programmatically Adding a Player to a Match iOS 5 Reinvites Player Groups Player Attributes

Understanding Player Attribute Limitations Working with Player Attributes

Player Activity Using Your Own Server (Hosted Matches) Summary

Chapter 6: The Peer Picker

Benefits of the Peer Picker Real-World Examples Working with Sessions Presenting a Peer Picker Advanced GKSession Interaction The Peer Picker Delegate Summary

Chapter 7: Network Design Overview

Three Types of Networks

Peer-to-Peer Network Client-to-Host Network Ring Network

Less Common Networks Reliable Data vs. Unreliable Data Sending Only What Is Needed Prediction and Extrapolation Formatting Messages Preventing Cheating and Preventing Timeout-Related Disconnections What to Do When All Else Fails Summary

Chapter 8: Exchanging Data

Modifying a Single-Player Game Setting Up Our Engine for Multiplayer

Picking a Host Sending Data Receiving Data

Putting Everything Together

Selecting the Host Displaying the Enemy UFO Spawning Cows Sharing Scores Adding Network Abduction Code

Disconnections Summary

Chapter 9: Turned-Based Gaming with Game Center

A New Sample Project GKTurnedBasedMatchmakerViewController Starting a New Game Making the First Move Continuing a Game in Progress Ending a Match Quitting and Forfeiting Programmatic Matches GKTurnBasedEventHandler Summary

Chapter 10: Voice Chat

Voice Chat for Game Center

Creating an Audio Session Creating New Voice Channels Starting and Stopping Voice Chat Chat Volume and Muting Monitoring Player State

Voice Chat for Game Kit

Creating an Audio Session Required Overhead Getting Things Running

Putting It Together Summary

Chapter 11: In-App Purchase with StoreKit

Setting Up Your App in iTunes Connect Adding Products to Your App

App IDs and In-App Purchase Setting Up Retrieving the Product List Presenting Your Products to the User

Purchasing a Product

Purchasing Code Purchasing Multiple Items Processing a Transaction Restoring Previously Completed Transactions

Test Accounts and Testing Purchases

Signing in with a Test Account

Submitting a Purchase GUI Screenshot Developer Approval Receipts Tying Everything Together in UFOs Summary

Index

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