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Cocos2d-x by example (update)

You're reading from   Cocos2d-x by example (update) Unleash your inner creativity with the popular Cocos2d-x framework and learn how to build great cross-platform 2D games with this Cocos2dx tutorial

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Product type Paperback
Published in Mar 2015
Publisher
ISBN-13 9781785288852
Length 270 pages
Edition 1st Edition
Tools
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Author (1):
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Roger Engelbert Roger Engelbert
Author Profile Icon Roger Engelbert
Roger Engelbert
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Toc

Table of Contents (14) Chapters Close

Preface 1. Installing Cocos2d-x FREE CHAPTER 2. You Plus C++ Plus Cocos2d-x 3. Your First Game – Air Hockey 4. Fun with Sprites – Sky Defense 5. On the Line – Rocket Through 6. Quick and Easy Sprite – Victorian Rush Hour 7. Adding the Looks – Victorian Rush Hour 8. Getting Physical – Box2D 9. On the Level – Eskimo 10. Introducing Lua! A. Vector Calculations with Cocos2d-x B. Pop Quiz Answers Index

Bitmap fonts in Cocos2d-x

The Cocos2d-x Label class has a static create method that uses bitmap images for the characters.

The bitmap image we are using here was created with the program GlyphDesigner, and in essence, it works just as a sprite sheet does. As a matter of fact, Label extends SpriteBatchNode, so it behaves just like a batch node.

You have images for all individual characters you'll need packed inside a PNG file (font.png), and then a data file (font.fnt) describing where each character is. The following screenshot shows how the font sprite sheet looks like for our game:

Bitmap fonts in Cocos2d-x

The difference between Label and a regular SpriteBatchNode class is that the data file also feeds the Label object information on how to write with this font. In other words, how to space out the characters and lines correctly.

The Label objects we are using in the game are instantiated with the name of the data file and their initial string value:

_scoreDisplay = Label::createWithBMFont("font.fnt&quot...
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