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

Creating a Complex Sprite Sheet animation in a 2D game


The Complex Sprite Sheet contains subimages with different sizes. Moreover, for every Complex Sprite Sheet, it has an additional description file. The description file defines the location and size of every subimage. It is the key difference between a Simple Sprite Sheet and a Complex Sprite Sheet. For a Simple Sprite Sheet, you can compute the location and size of the sub-image with the same width and height; however, for a Complex Sprite Sheet, it is harder, because the subimages in this kind of Sprite Sheet are often placed for the efficient use of space. To help identify the coordinates of the sprites in the Complex Sprite Sheet, the description file offers you the subimage location and size information. For the Sprite Sheet animation use, the description file also provides the animation name and attributes. The following screenshot shows an example of a Complex Sprite Sheet:

Getting ready

In the Sprite Sheet, you can see that the...