Book Image

Learning Libgdx Game Development

By : Andreas Oehlke, Andreas Oehlke
Book Image

Learning Libgdx Game Development

By: Andreas Oehlke, Andreas Oehlke

Overview of this book

Game development is a field of interdisciplinary skills, which also makes it a very complex topic in many respects. One decision that usually needs to be made at the beginning of a game development processis to define the kind of computer system or platform the game will be developed for. This does not pose any problems in general but as soon as the game should also be able to run on multiple platforms it will become a developer's nightmare to maintain several distinct copies of the same game. This is where the libGDX multi-platform game development framework comes to the rescue! "Learning Libgdx Game Development" is a practical, hands-on guide that provides you with all the information you need to know about the libGDX framework as well as game development in general so you can start developing your own games for multiple platforms. You will gradually acquire deeper knowledge of both, libGDX and game development while you work through twelve easy-to-follow chapters. "Learning Libgdx Game Development" will walk you through a complete game development cycle by creating an example game that is extended with new features over several chapters. These chapters handle specific topics such as organizing resources, managing game scenes and transitions, actors, a menu system, using an advanced physics engine and many more. The chapters are filled with screenshots and/or diagrams to facilitate comprehension. "Learning Libgdx Game Development" is the book for you if you want to learn how to write your game code once and run it on a multitude of platforms using libGDX.
Table of Contents (19 chapters)
Learning Libgdx Game Development
About the Author
About the Reviewers

Enhancing the game screen's GUI

The last part of this chapter is dedicated to two enhancements of the game screen's GUI. Firstly, we will add a small animation that gives visual feedback to the player when a life is lost. Secondly, a counting-up animation for the player's score will be implemented.

Event – player lost a life

We want to play a small animation in the event that the player has just lost a life. The extra lives are shown as bunny heads in the top-right corner of the game screen. These icons become dark one after another as soon as another life has been lost. The animation we are aiming for is a temporary bunny head icon on top of the just lost extra life. The temporary icon is going to be scaled up, rotated, and will have a slightly red tint.

The following screenshot is an example of the animation:

Add the following line to the WorldController class:

public float livesVisual;

After that, make the following changes to the same class:

private void init () {