Book Image

Building your First Mobile Game using XNA 4.0

By : Brecht Kets, Thomas Goussaert
Book Image

Building your First Mobile Game using XNA 4.0

By: Brecht Kets, Thomas Goussaert

Overview of this book

With the dawn of the Windows Phone 7 platform, Microsoft has offered us an easy way to create 3D mobile games. In this book, we will build a 3D game for Windows Phone 7 together, taking full advantage of the graphics and touch capabilities, along with the sensors of the platform."Building your First Mobile Game using XNA 4.0" is the book for starting game development on the Windows Phone 7 platform. This book will go over the technical aspects of building games along with designing your own framework. Finally we'll build an actual game together from the ground up! This book will set future mobile game developers in the right direction.The XNA framework empowers us to build 2D and 3D games for PC, Xbox 360 and Windows Phone 7. We will use those capabilities to create stunning 3D games for the Windows Phone 7 platform. We will start by covering the basics like drawing graphics, followed by building a custom framework and end with building a game together!In this book, we will cover drawing 2D and 3D graphics, both static and animations. We will also cover the various ways of handling user input and help set the mood of our game playing both 2D and 3D sound, and accessing the user's media library. The only thing left before building a game is covering several techniques created for making our life easier while building the game, whilst building a framework to do just that. Finally, we'll build a 3D game together that will run on the Windows Phone 7 platform."Building your First Mobile Game using XNA 4.0" is the book you need to get started with mobile game development for Windows Phone 7. Its hands on approach will set you on your way in no time. Let's build some games!
Table of Contents (16 chapters)

Menu scene


We will start this demo from a fresh project that you can find in the StartFiles folder. This project already contains all the assets and a basic folder setup that will help us organize our game files.

We will create a simple menu with two buttons, one to start the game and another one to exit the game. Let's start by creating a new class called MenuScene that inherits from GameScene.

public class MenuScene :GameScene

Fields

Our class will have four fields: a background, two buttons, and a SoundEffect class.

private GameSprite _background;
private GameButton _startButton;
private GameButton _exitButton;
private Song _backgroundMusic;

Constructor

The constructor remains empty but we need to pass the name of this scene to the base class.

public MenuScene():base("Menu"){}

Initialize

In this method, we will initialize the background and the buttons. The PivotPoint property of the buttons is set at the top-middle; this will make it easy to position them on the middle of the screen. We also add...