Book Image

Game Programming Using Qt: Beginner's Guide

By : Lorenz Haas, Witold Wysota, Witold Wysota, Lorenz Haas
Book Image

Game Programming Using Qt: Beginner's Guide

By: Lorenz Haas, Witold Wysota, Witold Wysota, Lorenz Haas

Overview of this book

Qt is the leading cross-platform toolkit for all significant desktop, mobile, and embedded platforms and is becoming more popular by the day, especially on mobile and embedded devices. Despite its simplicity, it's a powerful tool that perfectly fits game developers’ needs. Using Qt and Qt Quick, it is easy to build fun games or shiny user interfaces. You only need to create your game once and deploy it on all major platforms like iOS, Android, and WinRT without changing a single source file. The book begins with a brief introduction to creating an application and preparing a working environment for both desktop and mobile platforms. It then dives deeper into the basics of creating graphical interfaces and Qt core concepts of data processing and display before you try creating a game. As you progress through the chapters, you’ll learn to enrich your games by implementing network connectivity and employing scripting. We then delve into Qt Quick, OpenGL, and various other tools to add game logic, design animation, add game physics, and build astonishing UI for the games. Towards the final chapters, you’ll learn to exploit mobile device features such as accelerators and sensors to build engaging user experiences. If you are planning to learn about Qt and its associated toolsets to build apps and games, this book is a must have.
Table of Contents (18 chapters)
Game Programming Using Qt
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface
Index

The jumping elephant or how to animate the scene


By now, you should have a good understanding about the items, the scene, and the view. With your knowledge of how to create items, standard and custom ones, of how to position them on the scene, and of how to set up the view to show the scene, you can make pretty awesome things. You even can zoom and move the scene with the mouse. That's surely good, but for a game, one crucial point is still missing: you have to animate the items. Instead of going through all possibilities for how to animate a scene, let us develop a simple jump-and-run game where we recap parts of the previous topics and learn how to animate items on a screen. So let's meet Benjamin, the elephant:

The game play

The goal of the game is for Benjamin to collect the coins that are placed all over the game field. Besides walking right and left, Benjamin can, of course, also jump. In the following screenshot, you see what this minimalistic game should look like in the end:

The player...