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

Taking your touch application to the next level


Now, we have done the first sample of touch tap, very easy, huh? Maybe you feel it's not exciting enough yet. The next example will be more interesting. The ball will randomly show up in every possible place within the touchscreen, and your job is to click the ball as soon as possible; every valid click will be counted and shown as scores at the top-left of the screen. The new sample's name is TouchTapRandomBall.

How to do it...

Create a new Windows Phone 7 Game project in Visual Studio 2010 named TouchTapRandomBall. Change the name from Game1.cs to TouchTapRandomBallGame.cs. Then add the Round.jpg and gamefont.spritefont to the associated content project:

  1. 1. The first operation is to add the lines as field variables:

    GraphicsDeviceManager graphics;
    SpriteBatch spriteBatch;
    Texture2D texRound;
    Rectangle HitRegion;
    bool isSelected = false;
    //start position of round, in the center of screen
    int positionX = 400;
    int positionY = 240;
    //random number...