Book Image

XNA 4 3D Game Development by Example: Beginner's Guide

By : Kurt Jaegers
Book Image

XNA 4 3D Game Development by Example: Beginner's Guide

By: Kurt Jaegers

Overview of this book

Move beyond the world of flat 2D-based game development and discover how to create your own exciting 3D games with Microsoft XNA 4.0. Create a 3D maze, fire shells at enemy tanks, and drive a rover on the surface of Mars while being attacked by alien saucers."XNA 4 3D Game Development by Example: Beginner's Guide" takes you step-by-step through the creation of three different 3D video games with Microsoft XNA 4.0. Learn by doing as you explore the worlds of 3D graphics and game design.This book takes a step-by-step approach to building 3D games with Microsoft XNA, describing each section of code in depth and explaining the topics and concepts covered in detail. From the basics of a 3D camera system to an introduction to writing DirectX shader code, the games in this book cover a wide variety of both 3D graphics and game design topics. Generate random mazes, load and animate 3D models, create particle-based explosions, and combine 2D and 3D techniques to build a user interface."XNA 4 3D Game Development by Example: Beginner's Guide" will give you the knowledge to bring your own 3D game creations to life.
Table of Contents (16 chapters)
XNA 4 3D Game Development by Example Beginner's Guide
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface

Time for action – the buildIndexBuffer() method


  1. 1. Add the Index Buffer region to the Terrain class:

    #region Index Buffer
    private void BuildIndexBuffer(int width, int height)
    {
        int indexCount = (width-1) * (height-1) * 6;
        short[] indices = new short[indexCount];
        int counter = 0;
    
        for (short z = 0; z < height - 1; z++)
            for (short x = 0; x < height - 1; x++)
            {
                short upperLeft = (short)(x + (z * width));
                short upperRight = (short)(upperLeft + 1);
                short lowerLeft = (short)(upperLeft + width);
                short lowerRight = (short)(upperLeft + width + 1);
    
                indices[counter++] = upperLeft;
                indices[counter++] = lowerRight;
                indices[counter++] = lowerLeft;
                indices[counter++] = upperLeft;
                indices[counter++] = upperRight;
                indices[counter++] = lowerRight;
            }
    
        indexBuffer = new IndexBuffer(
            device, 
            IndexElementSize.SixteenBits, 
    ...