Chapter 1, What to Expect in Xcode and Game Development, covers how to become an Apple developer, how to download Xcode and the iOS development kit, and what to expect of the game development industry.

Chapter 2, Creating the Stuff, demonstrates how to use the various tools available to you to create sprites and various other images, sound effects, and even videos for your game.

Chapter 3, Blast Off! Starting with Development, talks about beginning our project. You will learn how to import various frameworks for our project and create our character and get him moving.

Chapter 4, Let's Keep Going! Adding More Functionality, discusses how to add some cool effects, such as particles for flames and rain, to our game now that our project is coming together.

Chapter 5, Bug Squashing – Testing and Debugging, covers testing our game and debugging it to ensure that there are no issues in it once we port our game.

Chapter 6, Making Our Game More Efficient, shows how we can make our game run better on all devices now that it is running flawlessly. By doing this, we will increase battery life, performance, and the overall user experience.

Chapter 7, Deploying and Monetizing, discusses how to show our game to the world and increase our revenue outlets by adding monetizing options.

Chapter 8, It's Too Dangerous to Go Alone, Take a Friend!, talks about making our game multiplayer after much planning, as we are now ready to update our game. We will incorporate multiplayer connectivity to find friends to play with!

For this book, all that you need is Xcode, which is Apple's software development kit for iOS, and any image creation software, such as Gimp or Photoshop.

This book is for all those who have a little experience of iOS development but really want to hone their skills.

In this book, you will find a number of styles of text that distinguish between different kinds of information. Here are some examples of these styles, and an explanation of their meaning.

Code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles are shown as follows: "We will add another NSString class at the top of our MultiplayerHelper.m file."

A block of code is set as follows:

- (void)match:(GKMatch *)match didFailWithError:(NSError *)error {
    
    if (_match != match) return;
    
    NSLog(@"Match failed with error: %@", error.localizedDescription);
    _matchStarted = NO;
    [_delegate matchEnded];
}

When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:

- (void)update:(NSTimeInterval)delta {
    
    CGPoint gravity = CGPointMake(0.0, -450.0);
    
    CGPoint gravityStep = CGPointMultiplyScalar(gravity, delta);
    
   CGPoint movingForward = CGPointMake(750.0, 0.0);
   CGPoint movingForwardStep = CGPointMultiplyScalar(walking, delta);

    self.velocity = CGPointAdd(self.velocity, gravityStep);

New terms and important words are shown in bold. Words that you see on the screen, in menus or dialog boxes for example, appear in the text like this: "For this project, we are—obviously—going to select iOS | Application | Single View Application and then click on Next.".

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