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SFML Game Development

SFML Game Development

By : Artur Moreira, Henrik Vogelius Hansson, Jan Haller, Henrik Valter Vogelius, SFML
3.8 (31)
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SFML Game Development

SFML Game Development

3.8 (31)
By: Artur Moreira, Henrik Vogelius Hansson, Jan Haller, Henrik Valter Vogelius, SFML

Overview of this book

Game development comprises the combination of many different aspects such as game logics, graphics, audio, user input, physics and much more. SFML is an Open Source C++ library designed to make game development more accessible, exposing multimedia components to the user through a simple, yet powerful interface. If you are a C++ programmer with a stack of ideas in your head and seeking a platform for implementation, your search ends here.Starting with nothing more than a blank screen, SFML Game Development will provide you with all the guidance you need to create your first fully featured 2D game using SFML 2.0. By the end, you'll have learned the basic principles of game development, including advanced topics such as how to network your game, how to utilize particle systems and much more.SFML Game Development starts with an overview of windows, graphics, and user inputs. After this brief introduction, you will start to get to grips with SFML by building up a world of different game objects, and implementing more and more gameplay features. Eventually, you'll be handling advanced visual effects, audio effects and network programming like an old pro. New concepts are discussed, while the code steadily develops.SFML Game Development will get you started with animations, particle effects and shaders. As well as these fundamental game aspects, we're also covering network programming to the extent where you'll be able to support the game running from two different machines. The most important part, the gameplay implementation with enemies and missiles, will make up the core of our top-scrolling airplane shoot' em-up game!You will learn everything you need in SFML Game Development in order to start with game development and come closer to creating your own game.
Table of Contents (18 chapters)
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SFML Game Development
Credits
Foreword
About the Authors
About the Reviewers
www.PacktPub.com
Preface
Index

Playing nice with your application neighborhood


Now what we learned in the last part is indeed handy, but it has got its problem. What if the user tabs out and tries to interact with the other applications that are running in the background? We would be constantly forcing the mouse back to the center of our window, making it impossible to do anything else than playing our game.

Believe it or not, this is actually very annoying for a lot of people, including ourselves. When we are debugging our application, this behavior will make it impossible to work with the IDE in the background. We have to detect when the user doesn't want to interact with us anymore and behave properly.

This is where events come in again. If you remember, we had the event types sf::Event::GainedFocus and sf::Event::LostFocus that notify the application as soon as the window gains or loses focus:

void Game::processEvents()
{
    sf::Event event;
    while(mWindow.pollEvent(event))
    {
        if (event.type == sf::Event...

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