Book Image

Windows Phone 7 XNA Cookbook

By : Zheng Yang
Book Image

Windows Phone 7 XNA Cookbook

By: Zheng Yang

Overview of this book

Developing games for Windows Phone 7, a new mobile platform, is your big chance to impact the world of mobile games. The XNA 4.0 for Windows Phone 7 integrates a lot of capabilities from software and hardware for you to create incredible games. The next generation of mobile games will be built by you. Windows Phone 7 XNA Cookbook is the best choice for you to make a game on Windows Phone 7. The book helps you to master the indispensable techniques to create your games using XNA 4.0. From the basics such as animating a 2D sprite and interacting with the customized graphical user interface to the more challenging such as 3D graphic rendering and collision detection. This comprehensive cookbook covers all the essential areas of XNA game development for Windows Phone 7, such as approaches to control the sensors, gestures and typical kinds of cameras. We also have recipes for sprite animation, texture rendering, and graphical user interface development that will give you a powerful tool to work with 2D effects. After this we move onto the more juicy stuff with recipes covering 3D graphic rendering and collision detection, and major ways to improve your loading efficiency. You will also work with Xbox live so you can take your game global. Finally, no mobile game development book would be complete without a look at performance optimization to make your games run faster. Windows Phone 7 XNA Cookbook will equip you with the firepower to rock the game world.
Table of Contents (17 chapters)
Windows Phone 7 XNA Cookbook
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface

Setting up the position, direction, and field of view of a fixed camera


In the 2D world of Windows Phone 7 game programming, the presentation of images or animations with X and Y axes is straightforward. You just need to know that the original point (0, 0) is located at the top left of the touchscreen, and the screen width and height. Now, in a 3D world, things are different, as there are now X, Y, and Z axes and the original point is not simply sitting at the top left of the touchscreen. In this recipe, you will learn how to deal with the new coordinate system.

Getting ready

In 3D programming, especially for Windows Phone 7, the first thing we must make sure of is the coordinate system, which is on either the right hand or the left hand. In Windows Phone 7 XNA 3D programming, the coordinate system is on the right-hand, which means the increasing Z axis points towards you when you are playing a Windows Phone 7 game.

The next step is to set the camera, like the eye, to make the objects in the...