Chapter 1, Designing Games with Swift, introduces you to best features on Swift, helps you set up your development environment, and launches your first SpriteKit project.

Chapter 2, Sprites, Camera, Actions!, teaches you the basics of drawing and animating with Swift. You will draw sprites, import textures into your project, and center the camera on the main character.

Chapter 3, Mix in the Physics, covers the physics simulation fundamentals: physics bodies, impulses, forces, gravity, collisions, and more.

Chapter 4, Adding Controls, explores various methods of mobile game controls: device tilt and touch input. We will also improve the camera and core gameplay of our example game.

Chapter 5, Spawning Enemies, Coins, and Power-ups, introduces the cast of characters we will use in our example game and shows you how to create custom classes for each NPC type.

Chapter 6, Generating a Never-Ending World, explores the SpriteKit scene editor, builds encounters for the example game, and creates a system to loop encounters endlessly.

Chapter 7, Implementing Collision Events, delves into advanced physics simulation topics and adds custom events when sprites collide.

Chapter 8, Polishing to a Shine – HUD, Parallax Backgrounds, Particles, and More, adds the extra features that make every great game shine. Create parallax backgrounds, learn about SpriteKit's particle emitters, and add a heads-up display overlay to your games.

Chapter 9, Adding Menus and Sounds, builds a basic menu system and illustrates two methods of playing sounds in your games.

Chapter 10, Integrating with Game Center, links our example game to the Apple Game Center for leaderboards, achievements, and friendly challenges.

Chapter 11, Ship It! Preparing for the App Store and Publication, covers the essentials of packaging your game and submitting it to the App Store.

This book uses the Xcode IDE Version 6.3.2 (Swift 1.2). If you use a different version of Xcode, you will likely encounter syntax differences; Apple is constantly upgrading Swift's syntax.

Visit https://developer.apple.com/xcode/ to download Xcode.

You will need an Apple developer account to integrate your apps with the Game Center and to submit your games to the App Store.

If you wish to create and publish fun iOS games using Swift, then this book is for you. You should be familiar with basic programming concepts such as classes, types, and functions. However, no prior game development or Apple ecosystem experience is required. Additionally, experienced game programmers will find this book useful as they transition into game development with Swift.

In this book, you will find a number of text styles 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: "The game invokes the didMoveToView function whenever it switches to this scene."

A block of code is set as follows:

let mySprite = SKSpriteNode(color: UIColor.blueColor(), size: 
    CGSize(width: 50, height: 50))
mySprite.position = CGPoint(x: 300, y: 300)
self.addChild(mySprite)

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

    // Find the width of one-third of the children nodes
    jumpWidth = tileSize.width * floor(tileCount / 3)
}

New terms and important words are shown in bold. Words that you see on the screen, for example, in menus or dialog boxes, appear in the text like this: "Select iOS | Application in the left pane, and Game in the right pane."

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