a0009 xna 2 0 game programming recipe a problem solution approac morebook vn 6339 2

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

XNA 2.0 Game

Programming Recipes

A Problem-Solution Approach

■ ■ ■

Riemer Grootjans

XNA 2.0 Game Programming Recipes: A Problem-Solution Approach

Copyright © 2008 by Riemer Grootjans

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): 978-1-59059-925-9

ISBN-10 (pbk): 1-59059-925-X

ISBN-13 (electronic): 978-1-4302-0514-2

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of a trademarked name, we use the names only in an editorial fashion and to the benefit of the trademark owner, with no intention of infringement of the trademark.

Lead Editor: Ewan Buckingham

Technical Reviewer: Fabio Claudio Ferracchiati

Editorial Board: Clay Andres, Steve Anglin, Ewan Buckingham, Tony Campbell, Gary Cornell,

Jonathan Gennick, Matthew Moodie, Joseph Ottinger, Jeffrey Pepper, Frank Pohlmann,

Ben Renow-Clarke, Dominic Shakeshaft, Matt Wade, Tom Welsh

Project Manager: Beth Christmas

Copy Editor: Kim Wimpsett

Associate Production Director: Kari Brooks-Copony

Production Editor: Ellie Fountain

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To Elisa, the most lovely woman I know Without your love and support,

this would not have been possible.

To my parents, for giving me each and every opportunity.

To my friends and co-workers, for their support and laughs.

Contents at a Glance

About the Author xi

About the Technical Reviewer xiii

Acknowledgments xv

Introduction xvii

■ CHAPTER 1 Getting Started with XNA 2.0 1

■ CHAPTER 2 Setting Up Different Camera Modes in Your 3D World 25

■ CHAPTER 3 Working with 2D Images/Textures in XNA 2.0 145

■ CHAPTER 4 Working with Models 247

■ CHAPTER 5 Getting the Most Out of Vertices 355

■ CHAPTER 6 Adding Light to Your Scene in XNA 2.0 499

■ CHAPTER 7 Adding Sounds to Your XNA 2.0 Project 559

■ CHAPTER 8 Networking in XNA 2.0 571

■ INDEX 599

■I N D E X

starting from VertexBuffer and

IndexBuffer, 395–396

for structure rendered as TriangleList,

393–394

for structure rendered as TriangleStrip,

394–395

of triangle, 392

writing custom content importer, 439

calculating collision point between

pointer and terrain, 432

Intermediate class, 434

view frustum, 26–27, 33

View matrix, 14, 16, 26, 29, 42, 47, 50, 357

viewAngle variable, 553

viewMatrix node, 91

viewMatrix variable, 40–41

ViewProjection matrix, 212, 242, 542

Visual Studio 2005, 2

■ W

WakeUp method, 168

walls, collision with, 60

.wav sound files, 559–563

WaveBank method, 562

waves, 560

while loop, 94, 400–401, 404, 415–417,

419–420, 447–448

world matrices, 504

ensuring correct lighting when using,

518–519

objects in sight of camera, 54–57

setting different world matrices for

different objects, 252–258

combining multiple

transformations, 254

order of matrix multiplication, 254–258

overview, 252–254

updating, 93–95

worldMatrix node, 91

worldMatrix property, 86 worldMatrix variable, 85 WorldViewProjection matrix, 139, 239 Wrap method, 373

Wrapping mode, 372 Write method, 316, 325, 423, 425, 585 WriteBone method, 279–281

WriteModelMesh method, 279–281 WriteModelStructure method, 279–281

■ X

.x file, 248 XAct, 559 xAllowedRotDir variable, 212 xAmbient variable, 519 xap file, 561

xBlurSize variable, 127–128 Xbox 360, deploying games on, 6–8 connecting Xbox 360 and PCs, 7 Creators Club licenses, 7 generating projects from existing XNA 2.0 projects, 8

installing XNA Game Studio Connect, 7 overview, 6

pairing PCs and Xbox 360, 7 Xbox Live accounts, 6 Xbox Live accounts, setting up, 6 Xbox Live Marketplace, 6 xCamUp parameter, 216 xCamUp variable, 215 xConeAngle variable, 530 xConeDecay variable, 530 xConeDirection variable, 529 xgs binary file, 561

XImporter method, 184 xLightDirection parameter, 523 xLightStrength value, 534

626 ■I N D E X

xLightStrength variable, 533

xMirrorTexture variable, 238–242, 245–246

XML file, loading data from, 439–445

creating XNA-compatible XML file from

existing object, 444–445 defining custom MapData class, 442

defining TypeReader capable of serializing

object of MapData class, 443 defining TypeWriter capable of serializing

object of MapData class, 442–443 overview, 439–442

XmlSerializer class, 20, 23

XNA, 470, 481–482

XNA Game Studio 2.0, 1–24

deploying games

on PCs, 8–10

on Xbox 360, 6–8

.fx HLSL files, 5

game loop timing, 10–11

GameComponent class, 11–19

changing updating order of, 18–19

DrawableGameComponent class, 12–13

making subscribe to interfaces, 16–17

overview, 11–12, 15–16

subscribing to ICameraInterface

service, 17–18 using GameComponent class, 14–15

using multiple GameComponents, 18

installing, 1–3

overview, 1

predefined methods, 4–5

saving/loading data, 19–24 creating StorageDevice method asynchronously, 20–22 loading data from disks, 23–24 overview, 20

saving data to disks, 22 starting new projects, 3 XNA Game Studio Connect program, 6–8 XNA Game Studio Device Center, 7 XNA project, accessing data in, 326 XNA-compatible XML file, creating from existing object, 444–445

<XNAContent> tag, 440 XNA-to-HLSL variables, 457–474 XNAUtils class, 95–96

XNAUtils file, 266 xnb files, 183–185, 193, 421 xPreviousShadingMapContents variable, 555 xRelative value, 411

xTexStretch variable, 465 xTexture variable, 298, 553 xTime variable, 121, 224–225, 227, 476 xWaveHeights variable, 474–475, 477, 482–483

xWaveLengths variable, 474–475, 477, 482–483

xWaveSpeeds variable, 475

■ Z

z-buffer (or depth buffer), 29, 32–33, 72, 230 zRelative value, 411