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 Simple Sprite Sheet animation in a 2D game


In Windows Phone 7 game programming, it is an obvious performance cost if you wanted to render a number of images. You need to allocate the same quantity of texture objects for the images in your game. If this happens in the game initialization phase, the time could be very long. Considering these reasons, the talented game programmers in the early days of the game industry found the solution through the Sprite Sheet technique, using a big image to contain a set of smaller images. It is very convenient for 2D game programming, especially for the sprite animation. The big advantage of using the Sprite Sheet is the ability to create character animation, complex effects, explosions, and so on. Applying the technique will be performance sweet for game content loading.

The Sprite Sheet has two types:

  • Simple Sprite Sheet, where all the smaller images have the same dimensions

  • Complex Sprite Sheet, where all the images in the sheet have different...