Swift by Example

Giordano Scalzo

• Publisher: Packt Publishing
• Year: 2015
• ISBN:
  9781785284700
• Edition: 1
• Topic: Computer Science
• Subtopic: Programming Games
• Index: Computer Science

Swift by Example

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Table of Contents

Swift by Example

Credits

About the Author

About the Reviewers

www.PacktPub.com

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Why subscribe?

Free access for Packt account holders

Preface

What this book covers

What you need for this book

Who this book is for

Conventions

Reader feedback

Customer support

Downloading the example code

Errata

Piracy

Questions

1. Welcome to the World of Swift

The first look at Swift

Let's go to the playground

The building blocks – variables and constants

Collect variables in containers

Controlling the flow

Transforming the values using functions

Structs – custom compounds type

Classes – common behavior objects

Loose coupling with protocols

Check the existence of an optionals value

Enumerations on steroids

A Guess the Number app in Swift

The app is…

Building a skeleton app

Adding the graphic components

Connecting the dots

Adding the code

Summary

2. A Memory Game in Swift

The app is…

Building the skeleton of the app

The menu screen

Implementing the basic menu screen

Creating a nice menu screen

The game screen

The structure

Adding the collectionView class

Sizing the components

Connecting the datasource and the delegate

Implementing a deck of cards

What we are expecting

The Card entity

Crafting the deck

Shuffling the deck

Finishing the deck

Put the cards on the table

Adding the assets

The CardCell structure

Handling touches

Finishing the game

Implementing the game logic

We got a pair

We played a wrong turn

Et voilà! The game is completed

Summary

3. A TodoList App in Swift

The app is…

Building a skeleton app

Implementing an empty app

Adding third-party libraries with CocoaPods

Implementing the Todos ViewController

Building the Todos screen

Adding the entities

Implementing the datastore

Connecting the datastore and the ViewController

Configuring tableView

Implementing TodoViewCell

Swipe that cell!

Adding a Todo task

The add a Todo ViewController

Updating the datastore

Adding a list

Implementing ListViewCell

Building ListViewController

Updating the datastore

Where do we go from here?

Summary

4. A Pretty Weather App

The app is…

Building the skeleton

Creating the project

Adding the assets

Implementing the UI

The UI in blocks

Completing the UI

CurrentWeatherView

WeatherHourlyForecastView

WeatherDaysForecastView

Blurring the background

Downloading the background image

Searching in Flickr

Geolocalising the app

Using CoreLocation

Retrieving the actual forecast

Getting the forecast from OpenWeatherMap

Rendering CurrentWeatherView

Rendering WeatherHourlyForecastView

Rendering WeatherDaysForecastView

Connecting to the server

Where do we go from here?

Summary

5. Flappy Swift

The app is…

Building the skeleton of the app

Creating the project

Implementing the menu

A stage for a bird

SpriteKit in a nutshell

Explaining the code

Simulating a three-dimensional world using parallax

How to implement the scrolling

A flying bird

Adding the Bird node

Making the bird flap

Pipes!

Implementing the pipes node

Making the components interact

Setting up the collision detection engine

Completing the game

Colliding with the pipes

Adding the score

Adding a restarting popup

Summary

6. Polishing Flappy Swift

Adding juiciness

Let there be sounds!

Playing the soundtrack

Shaking the screen!

Integrating with Game Center

What Game Center provides

Setting up Game Center

Creating an app record on iTunes Connect

Enabling Game Center

Creating fake user accounts to test Game Center

Authenticating a player

Summary

7. Cube Runner

The app is…

Introduction to SceneKit

What is SceneKit?

Building an empty scene

Adding a green torus

Let there be light!

Let's make it move!

Implementing Cube Runner

The game skeleton

Implementing the menu

Flying in a 3D world

Setting up the scene

Adding the fighter

Texturing the world

Make it move

Adding the cubes

Adding more obstacles

Adding a few touches

The score

Let's add the music

Summary

8. Completing Cube Runner

Making it a real game

Detecting collisions

Game Over!

Adding the juice

Game Center

Summary

Index

Swift by Example

Copyright © 2015 Packt Publishing

All rights reserved. No part of this book may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, without the prior written permission of the publisher, except in the case of brief quotations embedded in critical articles or reviews.

Every effort has been made in the preparation of this book to ensure the accuracy of the information presented. However, the information contained in this book is sold without warranty, either express or implied. Neither the author, nor Packt Publishing, and its dealers and distributors will be held liable for any damages caused or alleged to be caused directly or indirectly by this book.

Packt Publishing has endeavored to provide trademark information about all of the companies and products mentioned in this book by the appropriate use of capitals. However, Packt Publishing cannot guarantee the accuracy of this information.

First published: June 2015

Production reference: 1120615

Published by Packt Publishing Ltd.

Livery Place

35 Livery Street

Birmingham B3 2PB, UK.

ISBN 978-1-78528-470-0

www.packtpub.com

Credits

Author

Giordano Scalzo

Reviewers

Eugene Mozharovsky

Alexey Smirnov

Sumit Tiwari

Commissioning Editor

Nadeem N. Bagban

Acquisition Editors

Richard Brookes-Bland

Nikhil Karkal

Content Development Editor

Neeshma Ramakrishnan

Technical Editor

Faisal Siddiqui

Copy Editor

Vikrant Phadke

Project Coordinator

Shweta Birwatkar

Proofreader

Safis Editing

Indexer

Tejal Soni

Production Coordinator

Melwyn D'sa

Cover Work

Melwyn D'sa

About the Author

Giordano Scalzo is a developer with 20 years of programming experience since the days of the ZX Spectrum. He has worked using C++, Java, .NET, Ruby, Python, and a ton of other languages whose names he has forgotten.

After several years of backend development, over the past 5 years, he has developed extensively for iOS, releasing more than 20 apps—apps that he wrote for clients, enterprises, or himself.

Currently, Giordano is a contractor in London, where he delivers code for iOS through his company, Effective Code (http://effectivecode.co.uk), aiming at quality and reliability. In his spare time, when he is not crafting retro game clones for iOS, he writes his thou...