Book Image

Android NDK Game Development Cookbook

Book Image

Android NDK Game Development Cookbook

Overview of this book

Android NDK is used for multimedia applications which require direct access to a system's resources. Android NDK is also the key for portability, which in turn provides a reasonably comfortable development and debugging process using familiar tools such as GCC and Clang toolchains. If your wish to build Android games using this amazing framework, then this book is a must-have.This book provides you with a number of clear step-by-step recipes which will help you to start developing mobile games with Android NDK and boost your productivity debugging them on your computer. This book will also provide you with new ways of working as well as some useful tips and tricks that will demonstrably increase your development speed and efficiency.This book will take you through a number of easy-to-follow recipes that will help you to take advantage of the Android NDK as well as some popular C++ libraries. It presents Android application development in C++ and shows you how to create a complete gaming application. You will learn how to write portable multithreaded C++ code, use HTTP networking, play audio files, use OpenGL ES, to render high-quality text, and how to recognize user gestures on multi-touch devices. If you want to leverage your C++ skills in mobile development and add performance to your Android applications, then this is the book for you.
Table of Contents (16 chapters)
Android NDK Game Development Cookbook
About the Authors
About the Reviewers

Detecting a network address

To communicate with a web server, we need to specify its IP address. In a limited mobile environment, it is not convenient to ask the user for the IP address and we have to detect the address ourselves (and not involving any non-portable code). In the forthcoming App5 example, we use the GetAdaptersAddresses() function from the Windows API and the getifaddrs() function from POSIX. The Android runtime library provides its own implementation of getifaddrs(), which is included in the App5 sources in the DetectAdapters.cpp file.

Getting ready

Let's declare a structure to hold the information describing a network adapter:

struct sAdapterInfo

This is the internal system name of the network adapter:

  char FName[256];

The IP address of the adapter is as follows:

  char FIP[128];

The unique identification number of the adapter:

  char FID[256];

How to do it...

  1. We provide detailed code for the Android version of the Net_EnumerateAdapters() function in the following code. It...