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Introduction to Mobile Game Programming with Cocos2d-JS | PDF
Intro to Mobile Game
Programming with Cocos2d-JS
2014 - So Cal Code Camp - San Diego
Troy Miles
Troy Miles
Troy Miles aka the RocknCoder
Over 30 years of programming experience
Wrote a few games for Interplay in the 80's and 90’s
Speaker and writer on all things web & mobile
Contacting Me
@therockncoder
rockncoder@gmail.com
http://therockncoder.blogspot.com/
https://github.com/Rockncoder
https://www.youtube.com/user/rockncoder
Text
https://bitly.com/bundles/rockncoder/5
Agenda, Session 1
What is Cocos2d-JS?
Setting Up Your Environment
Parts is Parts
Workflow
Agenda, Session 2
Let’s look at a game
Audio
Cocos Studio + Other Tools
Ads
Publishing
Promoting
Why make mobile games?
Titles using Cocos2d-x
Text
Avengers Alliance
Marvel Entertainment
Text
Family Guy: The Quest for Stuff
TinyCo, Inc.
Diamond
Dash
Wooga
Star Wars:
Tiny Death
Star
LucasArts
BADLAND
Frogmind
Cocos2d-JS
History
Cocos2d-JS
Platforms and
Restrictions
History
2008 - Ricardo Quesada, a game developer in Argentina,
writes a game framework named Cocos2d
2009 - After the iPhone SDK release, Cocos2d rewritten
in Objective-C to become Cocos2d-iPhone
2010 - Zhe Wang, a developer in China, creates a fork,
Cocos2d-x
Chukong Technologies Inc, Zhe's company, develops
Cocos2d-JS, -HTML5, and -Lua
Cocos2d-JS
Cocos2d-x JavaScript version
Full Cocos2d-x functionality
Simplified JavaScript friendly API
Code Once, Run Everywhere
Mobile Native, Desktop, Web
Platforms
Mac OS X
Windows
Mac OS X
iOS
Android
HTML 5
Mac OS X
Windows
Windows 7
Android
HTML5
Windows Phone 8 (soon)
Prerequisites
Android
Java 6 or 7
Android ADT (NOT
Android Studio)
Android NDK
iOS
Xcode
HTML5
No extra prerequisites
Desktops
You can also build desktop apps for Windows and Mac
OS X
You will need Visual Studio and Xcode respectively
I won’t speak further about this
Python 2
The cocos command
line needs python to run
python 2.7.5+
It won’t work with
python 3
https://www.python.org/
downloads/
Installation
http://cocos2d-x.org/
download
Unzip the file
execute ./setup.py
cocos command options
new - Creates a new project
compile - Compiles the current project to binary
deploy - Deploy a project to the target
run - Compiles & deploy project and then runs it on the
target
jscompile - minifies and/or compiles js files
cocos new
cocos new -l js
cocos new -l js —no-native
cocos new projectName -l js -d ./Projects
cocos new projectName -l js
Parts is Parts
Project Files & Folders
Terminology
Coordinate system
Project files and folders
frameworks/runtime/tools
res - your resources
src - your JS source code
project.json - configuration
main.js - JS boot code
index.html - HTML markup
project.json
debug - the current debug setting
showFPS - whether or not to show the frame rate
frameRate - the desired frame rate
modules - cocos2d and potentially plugins
jsList - all of your source code
Demo time
The code flow
index.html
main.js's
app.js
Terminology
cc - Cocos2d, most classes prepended with this
Director - takes care of navigation between scenes
Node - Almost every element is a node
Scene - a screen in your game
Sprite - a 2D image that can be moved, rotated, scaled &
more
Layer - a special node which accepts user input
More terminology
Action - an order given to a node, like animations
Menu - Creates an onscreen menu
LabelTTF - The simplest option for displaying text
Right handed coordinate system
Different than web
Origin (0,0) located at lower
left hand of screen
x position increases going
right
y position increases going up
max x,y at upper right hand
corner
Workflow
Program Editor
Deploying
Modifying
Debugging
Program editor
I used WebStorm 8
It is available for
Windows, Mac, and
Linux
It has a Chrome
extension, JetBrains IDE
Support, allows
debugging
Deploying
Choose
Right click on index.html
Click Debug
“index.html”
Modifying
Double tap a file to open
it in the editor
Modify the text as desire
Click the refresh icon to
run the code again
Debugging
To set a break point,
click in the gutter to the
left of the text
To set a conditional
breakpoint, right click it
and specify a condition
Click again to delete it
Let’s look at a game
Parts
Scenes
Player
User Input
Physics plug-in
Collision detection
Audio
File formats
Sounds
Music
File formats
All of the devices can play mp3
Only some of the browsers can
Playing sounds
Playing sounds is easy
Simply call the
audioEngine’s playEffect
method
Cocos Studio + Other Tools
Animation Editor
UI Editor
Scene Editor
Data Editor
Tiled
Ads
Ads are tough since there is no readily available JS
module
AdMob / AdSense
iAds
Microsoft Ads
Publishing
Becoming a developer
Materials
Deploying
iOS
$99 a year for an individual in the local currency
$299 for an enterprise
Free for the university program
Only developers can put apps on devices
Android
$25 for a lifetime
Anyone can put apps on a device
Materials
Signed app
Icons
Screenshots
Big Images
Descriptions
Website
Videos
Promoting
Family and Friends
Social Media
Web site
Advertising
Summary
Cocos2d-JS allows you to create fast cross platform
games
Installation and setup can be a bit tough
Monetizing with Ads is also tough
Text
https://bitly.com/bundles/rockncoder/5

Introduction to Mobile Game Programming with Cocos2d-JS