Book Image

jMonkeyEngine 3.0 : Beginner's Guide

Book Image

jMonkeyEngine 3.0 : Beginner's Guide

Overview of this book

jMonkeyEngine 3.0 is a powerful set of free Java libraries that allows you to unlock your imagination, create 3D games and stunning graphics. Using jMonkeyEngine's library of time-tested methods, this book will allow you to unlock its potential and make the creation of beautiful interactive 3D environments a breeze."jMonkeyEngine 3.0 Beginner's Guide" teaches aspiring game developers how to build modern 3D games with Java. This primer on 3D programming is packed with best practices, tips and tricks and loads of example code. Progressing from elementary concepts to advanced effects, budding game developers will have their first game up and running by the end of this book.From basic concepts and project creation to building a complex 3D Game, you will learn to layout 3D scenes, make them interactive and add various multi-media effects.You will find answers to common questions including best practices and approaches, how game characters can act and interact, how to simulate solid walls and physical forces, how to take it online to play over a network and much more.From Zero to Hero, start your journey to make your game idea a reality.
Table of Contents (20 chapters)
jMonkeyEngine 3.0 Beginner's Guide
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Time for action – scale it!


Your freshly loaded fighter model appears as tall as the tavern next to it, while the dragon turns out to be as small as a lizard—what happened? It's possible that geometries do not come in the same scale; especially when you populate the scene with models from different sources, you have to resize them to fit the scene.

Resizing geometries is called scaling. Let's scale our translated cubes by adding the following to the simpleInitApp() method:

  1. Shrink the blue cube down to half its size: geom.setLocalScale(0.5f);.

  2. Grow the yellow cube to twice its size: geom2.scale(2.0f);.

  3. Clean and build the BasicGame template, and right-click on it to run the file.

Compare the outcome. The yellow cube is twice as big (2.0f) and the blue cube is half as big (0.5f) as before.

What happens if you supply three different floats (positive and larger than zero) as arguments instead, and run the file again? For example:

geom.setLocalScale(0.5f,3f,0.75f);
geom2.scale(2.0f,.33f,2.0f);

Try various...