www.it-ebooks.info XNA 4 3D Game Development by Example Beginner's Guide Create acon-packed 3D games with the Microso XNA Framework Kurt Jaegers BIRMINGHAM - MUMBAI www.it-ebooks.info XNA 4 3D Game Development by Example Beginner's Guide Copyright © 2012 Packt Publishing All rights reserved. No part of this book may be reproduced, stored in a retrieval system, or transmied in any form or by any means, without the prior wrien permission of the publisher, except in the case of brief quotaons embedded in crical arcles or reviews. Every eort has been made in the preparaon of this book to ensure the accuracy of the informaon presented. However, the informaon 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 informaon about all of the companies and products menoned in this book by the appropriate use of capitals. However, Packt Publishing cannot guarantee the accuracy of this informaon. First published: September 2012 Producon Reference: 1180912 Published by Packt Publishing Ltd. Livery Place 35 Livery Street Birmingham B3 2PB, UK. ISBN 978-1-84968-708-9 www.packtpub.com Cover Image by Sandeep Babu ( sandyjb@gmail.com ) www.it-ebooks.info Credits Author Kurt Jaegers Reviewers Kenneth Dahl Pedersen Michael Schuld Newton Sheikh Pedro Daniel Güida Vázquez Acquision Editor Dilip Venkatesh Lead Technical Editor Ankita Shashi Technical Editors Prashant Salvi Ankita Shashi Copy Editor Alda Paiva Project Coordinator Joel Goveya Proofreaders Aaron Nash Chris Smith Indexer Tejal Soni Graphics Adi Gajjar Producon Coordinator Arvindkumar Gupta Cover Work Arvindkumar Gupta www.it-ebooks.info About the Author Kurt Jaegers is an Oracle Database Administrator and Windows Network Administrator, as well as a long-me hobbyist game developer. He has built games for everything from the Commodore 64 to the Xbox 360. He is the owner of xnaresources.com , and the author of XNA 4.0 Game Development by Example: Beginner's Guide (C# edion) and XNA 4.0 Game Development by Example: Beginner's Guide – Visual Basic Edion, both of which were published by Packt Publishing. As always, I would like to thank my wife Linda for proofreading my original dras. I would also like to thank the visitors to my website and the readers of my rst two XNA books for their support, encouragement, and thought provoking quesons. Finally, I would like to thank the team at Packt Publishing. This is my third book with them, and the experience has always been wonderful. www.it-ebooks.info About the Reviewers Kenneth Dahl Pedersen now aged 35, has been programming since he got his rst computer at age 6, starng on the Commodore 64 with small programs that could do next to nothing. It quickly evolved when he migrated to the much more powerful Amiga 500, developing some demos and light applicaons, and nally culminated when he got his rst PC. Since then, game development has held his interest in a vice grip and Kenneth has since then studied numerous programming languages and APIs for that purpose, his repertoire includes C/C++, OpenGL, DirectX, C#, WPF, WCF, MDX, and XNA. With the appearance of readily available high-end engines, such as Unreal Development Kit, Kenneth had found another interest to keep him well sated in his thirst for game development knowledge. UnrealScript provided another mountain top to climb. Kenneth has an educaon as a Systems Analyst and Developer. Originally from Denmark, where he sll works, he now lives in Sweden with his wife and baby daughter. Other than his wife and daughter, he uses his spare me for game development, seeking new knowledge, and dabbling in 3D visual arts in applicaons such as 3D Studio Max and ZBrush. And of course, Kenneth is an avid gamer – aer all, you cannot make a game if you don't enjoy playing them! First of all, I would like to thank my wife, Nina, for the paence she's shown while I was doing this review—I have probably not been as helpful around the house as I should have been while this has been going on. My beauful daughter, Nadia, for always giving me a reason to smile and laugh. www.it-ebooks.info Michael Schuld started his foray into game development using Managed DirectX v9; aer playing with the framework for a few months, he decided there wasn't enough beginner content out in the world to help those people who are new to game development. To x this problem, he immediately set out wring a tutorial series that he kept up to date with the change from Managed DirectX to XNA and all the updates to the XNA Framework since then. Along with these tutorials, he has hosted a popular XNA Game Development forum and has helped hundreds of programmers new to game development get their feet wet. The site and tutorials have been listed by Microso and GameInformer as one of a select list of community resources for anyone wanng to learn the XNA Framework. More recently, he has expanded his work into DirectX v11 and reviewing books in the game development arena. His recent work, tutorials, and reviews can all be found on http://www.thehazymind.com . I would like to thank David Bonner, Charles Humphrey, and Michael Quandt for their early interest and assistance with my tutorial series, both in reviewing the content for ease of use and helping out with the forums. I'm glad to have you guys around to keep things from geng too crazy. Newton Sheikh , is a soware engineer working on Cloud applicaons for Windows Azure plaorm. Newton has been working with .NET technologies for the last 4 years and loves programming both in C# and VB. Newton's hobbies include web development and web designing. He is a casual game programmer for Android and Windows. When not programming, Newton loves to hang out with his friends. Newton made a very humble start of his career with a company named Inyxa LLC based in Faridabad, India. Currently Newton is working with Hanu Sowares in Gurgaon, India. www.it-ebooks.info Pedro Daniel Güida Vázquez is an Economist, System Analyst, Professor, and Microso MVP for DirectX and XNA, which are some of the accomplishments obtained throughout his life. Owner of Pulsar Coders, an indie company that develops videogames for many plaorms, he enjoys working daily on everything related to videogame development. His skills cover many areas in the eld, both technical and arsc, and he is always looking for interesng challenges to extend his personal and professional goals. You can nd a comprehensive bio of Pedro at http://www.linkedin.com/in/pedroguida . Pedro has worked on XNA 4.0 Game Development by Example: Beginner's Guide – Visual Basic Edion (Book) and XNA Game Development Video Training Screencast (Video tutorial), both of which are endeavors by Packt Publishing. www.it-ebooks.info www.PacktPub.com Support les, eBooks, discount offers and more You might want to visit www.PacktPub.com for support les and downloads related to your book. Did you know that Packt oers eBook versions of every book published, with PDF and ePub les available? You can upgrade to the eBook version at www.PacktPub.com and as a print book customer, you are entled to a discount on the eBook copy. Get in touch with us at service@ packtpub.com for more details. 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Find out when new books are published by following @PacktEnterprise on Twier, or the Packt Enterprise Facebook page. www.it-ebooks.info Table of Contents Preface 1 Chapter 1: Introducon to XNA 7 System requirements 8 Installing the Windows Phone SDK 8 Time for acon – installing Windows Phone SDK 9 Speller – Our rst XNA game 10 Time for acon – creang an XNA project 11 Managing content 12 Time for acon – creang content assets 13 Member variables 14 Time for acon – declaring new member variables 14 The Game1 constructor 16 Inializaon 17 Time for acon – customizing the Inialize() method 17 Loading content 17 Time for acon – creang a square texture 18 Updang 19 Time for acon – customizing the Update() method 19 The Draw() method 21 Time for acon – drawing Speller 21 Helper methods 23 Time for acon – words and leers 24 Time for acon – compleng the Speller project 27 Summary 30 Chapter 2: Cube Chaser – A Flat 3D World 31 Designing the game 31 3D coordinates 32 www.it-ebooks.info . xnaresources.com , and the author of XNA 4. 0 Game Development by Example: Beginner's Guide (C# edion) and XNA 4. 0 Game Development by Example: Beginner's. www.it-ebooks.info XNA 4 3D Game Development by Example Beginner's Guide Create acon-packed 3D games with the Microso XNA Framework Kurt Jaegers