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This book also shows you how to port other classic freeware/shareware games like Doom and Wolfenstein™ 3D from C using the Java Native Interface (JNI) for Android.. This book is al[r]
(1)Silv a Andr oid G ames Pro Companion eBook Available
COMPANION eBOOK SEE LAST PAGE FOR DETAILS ON $10 eBOOK VERSION
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Do you remember landmark games like Wolfenstein™ 3D,Doom, and As-teroids™? Well, here’s an exciting opportunity to build and/or port these games to one of the hottest mobile and netbook platforms today: Google’s Android Pro Android Games teaches you how to build cool games like Space Blaster and the classic Asteroids™ from scratch on the latest Android plat-form This book also shows you how to port other classic freeware/shareware games like Doom and Wolfenstein™ 3D from C using the Java Native Interface (JNI) for Android
This book is all about a unique perspective in Android game development: a well-balanced, powerful combination of pure pure Java and hybrid game development, mixing Java and C I believe that in the world of gaming, per-formance is critical, and that by combining the elegant object-oriented fea-tures of Java and the raw power of C, there is no limit to the types of games that you can build for the platform With actionable real-world source code in hand, this book dives you right into Games development on Android In this book you’ll learn how to:
• setup a Linux system for hybrid game compilation
• combine Java and C code in an elegant manner by building a simple Java application on top of a native library
• tackle pure Java gaming with two practical games: Space Blaster and the arcade classic Asteroids™
• mix OpenGL API calls in Java and C for high performance 3D graphics using the 3D cubes sample by Google
• bring two of the greatest PC 3D shooters to the Android platform:
Wolfenstein™ 3D and Doom using Java and C
By the end of this book, you will have learned how easy it is to bring native PC games alive on the Android platform, which is now growing in popularity at an amazing rate Pro Android Games is the ultimate helper tool for your hybrid game development needs, so you’ll be developing games quickly on
Google’s Android Pro
Android Games
Trim: 7.5 x 9.25 spine = 0.875" 320 page count
Create and port cool games like Space Blaster, classic Asteroids™,
Doom and Wolfenstein™ 3D using Android
(2)Pro Android Games
■ ■ ■
(3)Pro Android Games
Copyright © 2009 by Vladimir Silva
All rights reserved No part of this work may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or by any information storage or retrieval system, without the prior written permission of the copyright owner and the publisher
ISBN-13 (pbk): 978-1-4302-2647-5 ISBN-13 (electronic): 978-1-4302-2648-2
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(4)iii
Contents at a Glance
Contents iv
About the Author x
About the Technical Reviewer xi
Introduction xii
■ Chapter 1: Welcome to Android Gaming
■ Chapter 2: Compiling Native Code in Android 27
■ Chapter 3: Building a Java Game from Scratch 55
■ Chapter 4: Java Games Continued: Fun with Polygons 81
■ Chapter 5: Hybrid 3D Graphics with OpenGL and JNI 117
■ Chapter 6: 3D Shooters Episode I: Wolfenstein 3D for Android 161
■ Chapter 7: 3D Shooters Episode II: Doom for Android 221
■ Appendix: Deployment and Compilation Tips 271
(5)■ CONTENTS
iv
Contents
Contents at a Glance iii
About the Author x
About the Technical Reviewer xi
Introduction xii
■ Chapter 1: Welcome to Android Gaming
What Skills Do You Need?
A Solid Foundation of Android
A Basic Knowledge of Linux and Shell Scripting
What Software Tools Do You Need?
Setting Up Your Machine
Getting the Android Source
Extracting Native Android Libraries
Installing the GNU Toolchain for ARM Processors
Writing Custom Compilation Scripts 11
Setting Up Your Development Environment 18
You Have Taken the First Step 26
■ Chapter 2: Compiling Native Code in Android 27
Your First Native Android App 27
(6)■ INDEX
297 Strings.xml file, 98
struct XColor class, 262
Surface View class, for GL Cubes sample, 124—127
surfaceChanged( ) method, 125 surfaceCreated( ) method, 125 surfaceDestroyed( ) method, 125 SurfaceHolder.addCallback( ) class, 124 SurfaceHolder.Callback callback, 124 swap buffers, 138
SYS_DEV variable, 15 SYS_ROOT variable, 15 /system/bin/linker file, 49 /system/lib folder, 7, 51 System.load( ) method, 34
System.loadLibrary( ) method, 216
T
testing, Java game, 79—80 testlib target, 45
testlib.c file, 33
text message, miscellaneous, 166 Timertask:run( ) method, 66 tnt.wad file, 242
Toggle Screen option, 172 TOOLCHAIN_ROOT variable, 15 Tools class, 98
Tools.java class, 58
touch events, 76—78, 110—113, 174 touch handlers, 227
U
Ubuntu Linux VMware appliance, UI widget, 236
up class variable, 110
updateBounds( ) method, 86 updateShip( ) method, 106
V
-v argument, 272 va_end command, 45 va_list command, 45 va_start command, 45
-validity <valdays> argument, 272
variable-arguments function in C, defining, 44—45
verbose argument, 273 vgadict.wl1 file, 176 vgagraph.wl1 file, 176 vgahead.wl1 file, 176
vi_null.c file, 203, 206, 207, 208 video buffer update callback, 206 VL_SetPalette ( ) function, 209 VL_Startup( ) method, 206, 207, 208 VMware Linux image, 276
VMware Player software,
VMware Virtual Appliance Marketplace, void drawFrame(GL10 gl) method, 130 void initialize( ) method, 99
void jni_fatal_error( ) method, 251 void jni_printf( ) function, 42 void jni_send_pixels( ) method, 250
void jni_set_music_volume ( ) method, 251 void jni_start_music ( ) method, 251 void jni_start_sound ( ) method, 251 void jni_stop_music ( ) method, 251 void onDraw( ) method, 99
void sizeChanged( ) method, 131 void startSound( ) method, 193 void surfaceCreated( ) method, 132 void updatePhysics( ) method, 100 vswap.wl1 file, 176
VW_UpdateScreen( ) method, 208—209
W
Wall flag, 264
WebDownload.java class, 227 width argument, 235, 242 wolf game ID, 176
wolf_jni_Natives.h file, 203
wolf.audio.SoundNames class, 191 Wolfd3D.apk argument, 273 Wolfenstein 3D game
coding native layer, 203—213 initializing game loop, 204
making C to Java callbacks, 206—208, 206—213, 208—209, 211—213 compiling libraries with Android NDK,
(7)■ INDEX
298
compiling native library generating JNI headers, 215 writing Makefile, 213—214 game architecture, 165—167 Java classes for
creating game loop, 175—176 creating main menu, 172
creating movement controller, 182— 189
creating movement controller handlers, 180—181
creating sound and music handlers, 179
handling key and touch events, 174 making native callbacks, 177—178 native interface class (Natives.java
class), 200—202 sound classes, 190—197 WolfLauncher class, 168—172 testing in emulator, 215—217
tools, 161—162
wolf.jni.Natives method, 191
wolf.jni.Natives.OnStartMusic( ) method, 211
wolf.jni.Natives.OnStartSound( ) method, 191, 211
WolfLauncher activity, 165 WolfLauncher class, 167, 168—172 wolfsw game ID, 176
WolfTools class, 168
wolf.util.ScanCodes class, 200 Workstation software,
X, Y, Z
x argument, 235 XImage class, 261 XML parser (EXPAT), 15 y argument, 235
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