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Swift 3 Game Development

Swift 3 Game Development

By : Haney
4.5 (6)
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Swift 3 Game Development

Swift 3 Game Development

4.5 (6)
By: Haney

Overview of this book

Swift is the perfect choice for game development. Developers are intrigued by Swift 3.0 and want to make use of new features to develop their best games yet. Packed with best practices and easy-to-use examples, this book leads you step by step through the development of your first Swift game. This book starts by introducing SpriteKit and Swift's new features that can be used for game development. After setting up your first Swift project, you will build your first custom class, learn how to draw and animate your game, and add physics simulations. Then, you will add the player character, NPCs, and powerups. To make your game more fun and engaging, you will learn how to set up scenes and backgrounds, build fun menus, and integrate with Apple Game Center to add leaderboards and achievements. You will then make your game stand out by adding animations when game objects collide, and incorporate proven techniques such as the advanced particle system and graphics. Finally, you will explore the various options available to start down the path towards monetization and publish your finished games to the App Store. By the end of this book, you will be able to create your own iOS games using Swift and SpriteKit.
Table of Contents (14 chapters)
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Exploring the physics system


SpriteKit simulates physics with physics bodies. We attach physics bodies to all the nodes that need physics computations. We will set up a quick example before exploring all of the details.

Dropping like flies

Our bees need to be part of the physics simulation, so we will add physics bodies to their nodes. Open your Bee.swift file and locate the init function. Add the following code at the bottom of the function:

// Attach a physics body, shaped like a circle 
// and sized roughly to our bee. 
self.physicsBody = SKPhysicsBody(circleOfRadius: size.width / 2) 

It is that easy to add a node to the physics simulation. Run the project. You will see our two bee instances drop off the screen. They are now subject to gravity, which is on by default.

Solidifying the ground

We want the ground to catch falling game objects. We can give the ground its own physics body so that the physics simulation can stop the bees from falling through it. Open your Ground.swift...

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