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 Touch Directional Pad (D-pad)


In a Windows game, we have arrow keys to control directions. In Xbox, we have the gamepad controller to set different orientations. In Windows Phone 7, we only have the touchscreen for the same work, so we need another tool to accomplish this aim. The solution is the Touch Directional Pad. Touch Directional Pad gives you comfortable controlling experiences in game playing when adjusting the directions. In this recipe, you will learn how to create your own Touch Directional Pad on Windows Phone 7.

How to do it...

  1. 1. The first step is to create a new Windows Phone 7 Game project named WindowsPhoneDpad, and change Game1.cs to DpadGame.cs. Then add field variables in the DpadGame class, as follows:

    //Font for direction status display
    SpriteFont font;
    //Texture Image for Thumbstick
    Texture2D texDpad;
    //4 direction rectangles
    Rectangle recUp;
    Rectangle recDown;
    Rectangle recLeft;
    Rectangle recRight;
    //Bounding Rectangle for the 4 direction rectangles
    Rectangle...