Book Image

Cocos2d-X by Example Beginner's Guide

By : Roger Engelbert
Book Image

Cocos2d-X by Example Beginner's Guide

By: Roger Engelbert

Overview of this book

<p>Cocos2d-x is the C++ port of arguably the most popular open source 2D framework in the world. Its predecessor was limited to the Apple family but with Cocos2d-x you can take your applications to all major app stores, with minimum extra work. Give your games a larger target audience with almost no extra hassle.<br /><br />"Cocos2d-X by Example Beginner's Guide" allows you to build your own cross platform games using all the benefits of a time tested framework, plus the elegance and simplicity of C++.</p> <p>Each of the six games developed in this book will take you further on the road to becoming an expert game developer with no fuss and plenty of fun.<br /><br />Follow six tutorials for six very different games that leverage the ease of Cocos2D-X and its quick implementation, moving from simple ideas to more advanced topics in game development.</p> <p>In easy-to-follow steps, the book teaches you how to take full advantage of the framework by adding animations and special effects, implementing a physics engine, and optimizing your games.</p> <p>Prepare your project for multiple platforms and learn how to take your game concepts to completion.</p> <p>"Cocos2d-X by Example Beginner's Guide" will present to you, in six different games, the topics necessary to build some of the most popular and fun types of games today.</p>

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Cocos2d-X by Example Beginner's Guide
Roger Engelbert
Apr, 2013 | 246 pages
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Table of Contents (19 chapters)
Cocos2d-x by Example Beginner's Guide
Cocos2d-x by Example Beginner's Guide
Credits
Credits
About the Author
About the Author
About the Reviewers
About the Reviewers
www.PacktPub.com
www.PacktPub.com
Preface
Preface
Free Chapter
1
Installation
Installation
Download and installation
Time for action – downloading and installing Cocos2d-x
Hello-x World-x
Time for action – creating an application
Further information
Time for action – running the test samples
The other tools
Summary
2
You plus C++ plus Cocos2d-x
You plus C++ plus Cocos2d-x
Cocos2d-x – an introduction
The interface
Time for action – creating the interface
The implementation
Time for action – creating the implementation
Instantiation and memory management
What you get with CCObject
Summary
3
Your First Game – Air Hockey
Your First Game – Air Hockey
Game configurations
Time for action – creating your game project
Time for action – laying down the rules
Supporting retina displays
Time for action – adding the image files
Time for action – adding retina support
Adding sound effects
Time for action – adding the sound files
Extending CCSprite
Time for action – adding GameSprite.cpp
Time for action – implementing GameSprite
The actual game scene
Time for action – coding the GameLayer interface
Time for action – implementing init()
Time for action — handling multi-touches
Time for action – adding our main loop
Time for action – updating scores
Summary
4
Fun with Sprites – Sky Defense
Fun with Sprites – Sky Defense
The game – Sky Defense
Using sprite sheets in Cocos2d-x
Time for action – creating a CCSpriteBatchNode
Bitmap fonts in Cocos2d-x
Time for action – creating bitmap font labels
Time for action – adding the final screen sprites
Time for action – creating our object pools
CCActions in a nutshell
Time for action – creating actions with Cocos2d-x
Animating a sprite in Cocos2d-x
Time for action – creating animations
Time to make our game tick!
Time for action – handling touches
Time for action – starting and restarting the game
Time for action – updating the game
Time for action – retrieving objects from the pool
Play the game!
Summary
5
On the Line – Rocket Through
On the Line – Rocket Through
The game – Rocket Through
So what are particles?
Time for action – creating particle systems
Creating the grid
Drawing primitives in Cocos2d-x
Time for action – let's do some drawing!
The Rocket sprite
Time for action – updating our Rocket
Time for Action – handling touches
The game loop
Time for action – adding the main loop
Kill and reset
Time for action – adding our resets and kills
Summary
6
Quick and Easy Sprite – Victorian Rush Hour
Quick and Easy Sprite – Victorian Rush Hour
The game – Victorian Rush Hour
The game settings
Rapid prototyping with Cocos2d-x
Time for action – creating placeholder sprites
The Player object
The Block object
The Terrain object
Time for action – coding the player
Time for action – coding the Block object
Time for action – initialising our Terrain class
Time for action – initializing our Blocks
Time for action – moving and resetting
Platform collision logic
Time for action – adding collision detection
Adding the controls
Time for action – handling touches
Time for action – coding the main loop
Summary
7
Adding the Looks – Victorian Rush Hour
Adding the Looks – Victorian Rush Hour
Victorian Rush Hour – the game
Texturing our buildings with CCSprites
Time for action – texturing the buildings
Containers within containers
Creating a parallax effect
Time for action – creating a parallax effect
Adding a menu to our game
Time for action – creating CCMenu and CCMenuItem
Adding a tutorial to our game
Time for action – adding a tutorial
Summary
8
Getting Physical – Box2D
Getting Physical – Box2D
Creating a Box2D project with Cocos2d-x
Time for action – preparing the basic template
So what is a physics engine?
Our game – MiniPool
Time for action – adding the touch events
Time for action – adding the main loop
Time for action – creating a timer
Summary
9
The Last Game – Eskimo
The Last Game – Eskimo
The game – Eskimo
Using CCScenes in Cocos2d-x
Time for action – creating a CCScene transition
Time for action – creating transitions with a singleton CCLayer
Loading external data from a .plist file
Time for action – creating a .plist file
Time for action – retrieving data from the .plist file
Saving game data
Time for action – storing the completed levels
Using notifications in your game
Time for action – using CCNotificationCenter
Using the accelerometer
Time for action – reading accelerometer data
Reusing b2Bodies
Time for action – changing a b2Body fixture
Summary
10
Code Once. Retire.
Code Once. Retire.
First, a word on versions and requirements
Time for action – creating an Android project with Cocos2d-x
Time for action – compiling the code
Using Eclipse
Time for action – installing the C++ compiler
Time for action – adding the Cocos2d-x library to Eclipse
Time for action – opening the project in Eclipse
Compiling C++ code in Eclipse
Time for action – compiling our C++ code
Creating a hybrid project
Time for action – creating a hybrid Cocos2d-x project
Creating a Box2D hybrid project
Time for action – creating a Box2D project
Developing a hybrid game
Summary
Vector Calculations with Cocos2d-x
Vector Calculations with Cocos2d-x
What are vectors?
Using ccp helper methods
Pop Quiz Answers
Pop Quiz Answers
Chapter 4, Fun with Sprites – Sky Defense
Chapter 8, Getting Physical – Box2D
Index
Index

Saving game data

When planning your games you may soon decide you wish to store data related to your application, such as highest score or user preferences. In Cocos2d-x you can do this by simply accessing the CCUserDefault singleton.

With CCUserDefault you can store integers, floats, doubles, strings, and boolean with just one simple call per data type. For example:

CCUserDefault::sharedUserDefault()->setIntegerForKey(“levelsCompleted”, _levelsCompleted);
CCUserDefault::sharedUserDefault()->flush();

The other methods are setFloatForKey, setDoubleForKey, setStringForKey, and setBoolForKey.

To retrieve data you use their respective getters.

I'll show you next how to use that in our game.

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