Corona SDK Presentation at GMIC SV - October 19, 2012

Corona ®

Code Less. Play More.
@walterluh

NBC/Universal powers their campaign with Corona

@coronalabs coronalabs.com

Street Cred


Cr eative Software Development
Turning an idea into something real

+ + =


What is Corona?
SDK for native apps
...
develop 5-10x faster

same code, multiple stores


Breakthrough Productivity
Ship #1 apps 10x faster

“Angry Birds” “Fruit Ninja” “Tiny Wings”

36 hours 14 hours 12 hours
code+graphics+sound code+graphics+sound code+graphics+sound
(complete 2 level game) (gameplay only) (gameplay only)

“Developing directly in Xcode would have
been at least 5x more code than Corona”
– Unicorn Labs, Top 20 iPad eBook


High Performance

“Corona is a ‘godsend’. My game runs at 1 fps (frame/sec)
in Flash but runs in full 30 fps in Corona.”
– Jeff Fulton, Flash Developer

#1 on all Major Markets
iOS and Android and Amazon

@coronalabs
CONFIDENTIAL anscamobile.com
coronalabs.com

Developers like you
From Designers to Coders. From Indies to Studios.

#1 #1


Not just for games

HTML5 + OpenGL

Cross-device/Skinnable UI Branded Apps

Business Apps

ESP Guitars CheeseMonger Planet Sushi Thai Cook


The Sweet Spot
Simplicity

Corona
Performance
Staﬀ Pick

Flexibility


Architecture
Native Mobile App
Developer
Artwork User Interface Compiled Code Localized Strings Workflow
Assets

Virtual Machine
Objects Behaviors Dynamic Layout Events Device Capabilities Etc
Corona
Rendering Engine Device
User
Shapes Fills Strokes Camera Mic Networking
Input
Bitmaps Text GPS Etc

Device/OS


Lua: an industry standard


Small Code Size

1.4 MB
Footprint


Lua types

nil
boolean
• JavaScript-like syntax
number
• Functions are closures string
• Lexical scope (non-local vars) function
• Objects are tables table
userdata


Lua vs Other Languages
if
(not
carMoving)
then if
(!carMoving)
{

-‐-‐
do
something
//
do
something
elseif
(noGas)
then }
else
if
(noGas)
{

-‐-‐
do
something
else
//
do
something
else
end }

for
i
=
1,10
do for
(i=1;
i<=10;
i++)
{

print(i)
print(i)
end }

for
j
=
100,1,-‐1
do for
(j=100;
j>0;
j-‐-‐)
{

print(j)
print(j)
end }


Lua objects are Tables
array
=
{
"a",
"b",
100,
"hello"
}

dictionary
=
{
x=5,
y=7,
name="Joe"
}

t
=
{}

-‐-‐
empty
table

t[1]
=
"a"

-‐-‐
numerical
index

t["x"]
=
5

-‐-‐
key
index

t.x
=
5

-‐-‐
equivalent
property
access

t.hasProperties
=
true

t[array]
=
"Joe"

-‐-‐
any
type
can
be
a
key!!!

t["printJoe"]
=
function()
print("Joe")
end

Object methods

-‐-‐
create
empty
table
local
o
=
{}

-‐-‐
add
method
function
o:saySomething(
something
)

print(
something
)
end

-‐-‐
output
'hi'
o:saySomething(
"hi!"
)


The ':' is syntactic sugar

-‐-‐
create
empty
table
local
o
=
{}

-‐-‐
add
method
local
function
f(
self,
something
)

print(
something
)
end
o.saySomething
=
f

-‐-‐
output
'hi'
o.saySomething(
o,
"hi!"
)


Arrays are 1-based
-‐-‐
Lua:
index
begins
with
1
local
array
=
{'a','b','c'}

for
i=1,#array
do

print(
array[i]
)
end

//
Other
languages:
index
begins
with
0

array=['a','b','c'];
for
(
var
i=0;
i<arr.length;
i++)
{

log(
array[i]
)
}

Corona Enterprise
Lua and Objective-C/C++ and Java

• Integrate native libraries
• Wrap native code in your own Lua APIs
• Automate builds

API
Application Programming Interface Interaction


Over 500 APIs


W e bK tabas
e
e da
S Q Li t write uage
Tons of Features File
read
/
a scr
i p t in g lan
e
g
d gr
a p hics
ll Lu lerat r
Fu - acce o mete s
ware celer o d ie
• OpenGL graphics Hard
GP S, c o mpa
ss, a
co m
c
ple x p hy
sical
,
b
etc.)
and HTTP )
• Open AL audio S impl
e
o rk ing (
T CP, F
TP,
tre amin
<html5>
g or l ocal
tion,
Netw (s , f r ic
• Box2D Physics Vi d eo playb
r
ack
oper
t ie s (mas
p
s
ulley
s, etc
.
cal p ges, dent
• Texture atlases, sprites, ... Phys
i
ts, whee
ls, hi
s
n
w i t h in
de p e
n
g pre
Jo in prite lu d i
n
• Networking An im ate d
n
s
dete
c t io n, in
o
c
rk su
ppor
t
lisio netw s an
d
• GPS, multitouch, accelerometer, ... Co
Ope
l
nFei
nt gam e
A PIs (
shap
e

ra w ing etc.)
• Native web views, textfields, ... Ve ctor
d
I (keyb
oard
,
5, sh
a 1, s h
a512
,

Nati ve U , md MP3)
• Camera, photo library, video, ... Cr yp
to (md4
d eff
e cts o
r
n l i b ra
(so un sitio
• Services: ads, analytics, IAP, ... A u d io
t io n a
n d t ra
Tw itt
n
er li
b rarie
s

A n i ma d y ha
n
• And much more! F aceb
o ok a
e d tex
n
t ure m
emor
n
pro v latio
Im
ics simu coronalabs.com y
ibrar
p hys oto l
@coronalabs

Demo


Hard Problems Made Easy
(e.g. how Corona taught me to love physics)

coronalabs.com
CONFIDENTIAL

OpenGL in one line
Phone SDK. [EAGLContext setCurrentContext:context]; [aContext release];
// Display "myImage.png"
// Create default framebuffer object. [(EAGLView *)self.view setContext:context];
// ---------------------------------------------------------------------------- glGenFramebuffers(1, &defaultFramebuffer); [(EAGLView *)self.view setFramebuffer];
// OpenGLESTextureAppDelegate.m glBindFramebuffer(GL_FRAMEBUFFER, defaultFramebuffer);
// ---------------------------------------------------------------------------- [self loadTexture];
// Create color render buffer and allocate backing store.
#import "OpenGLESTextureAppDelegate.h" glGenRenderbuffers(1, &colorRenderbuffer); self.displayLink = nil;
#import "EAGLView.h" glBindRenderbuffer(GL_RENDERBUFFER, colorRenderbuffer); }
#import "OpenGLESTextureViewController.h" [context renderbufferStorage:GL_RENDERBUFFER fromDrawable:(CAEAGLLayer
*)self.layer]; - (void) loadTexture
@implementation OpenGLESTextureAppDelegate glGetRenderbufferParameteriv(GL_RENDERBUFFER, GL_RENDERBUFFER_WIDTH, {
&framebufferWidth); glEnable(GL_TEXTURE_2D);
@synthesize window=_window; glGetRenderbufferParameteriv(GL_RENDERBUFFER, GL_RENDERBUFFER_HEIGHT, glEnable(GL_BLEND);
&framebufferHeight); glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
@synthesize viewController=_viewController;
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, glGenTextures(1, &textureID);
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions: colorRenderbuffer); glBindTexture(GL_TEXTURE_2D, textureID);
(NSDictionary *)launchOptions glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR);
{ if (glCheckFramebufferStatus(GL_FRAMEBUFFER) != GL_FRAMEBUFFER_COMPLETE) glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);
// Override point for customization after application launch. NSLog(@"Failed to make complete framebuffer object %x",
self.window.rootViewController = self.viewController; glCheckFramebufferStatus(GL_FRAMEBUFFER)); NSString *path = [[NSBundle mainBundle] pathForResource:@"myImage" ofType:@"png"];
return YES; } NSData *texData = [[NSData alloc] initWithContentsOfFile:path];
} } UIImage *image = [[UIImage alloc] initWithData:texData];

- (void)applicationDidBecomeActive:(UIApplication *)application - (void)deleteFramebuffer GLuint width = CGImageGetWidth(image.CGImage);
{ { GLuint height = CGImageGetHeight(image.CGImage);
/* if (context) { CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();
Restart any tasks that were paused (or not yet started) while the application was [EAGLContext setCurrentContext:context]; void *imageData = malloc( height width 4 );
inactive. If the application was previously in the background, optionally refresh the user CGContextRef image_context = CGBitmapContextCreate( imageData, width, height, 8, 4
interface. if (defaultFramebuffer) { width, colorSpace, kCGImageAlphaPremultipliedLast | kCGBitmapByteOrder32Big );
*/ glDeleteFramebuffers(1, &defaultFramebuffer); CGColorSpaceRelease( colorSpace );
[self.viewController drawFrame]; defaultFramebuffer = 0; CGContextClearRect( image_context, CGRectMake( 0, 0, width, height ) );
} } CGContextTranslateCTM( image_context, 0, height - height );
CGContextDrawImage( image_context, CGRectMake( 0, 0, width, height ), image.CGImage );
- (void)dealloc if (colorRenderbuffer) {
{ glDeleteRenderbuffers(1, &colorRenderbuffer); glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE,
[_window release]; colorRenderbuffer = 0; imageData);
[_viewController release]; }
[super dealloc]; } CGContextRelease(image_context);
} }
free(imageData);
@end - (void)setFramebuffer [image release];
{ [texData release];

display.newImage("myImage.png")
if (context) {
// ---------------------------------------------------------------------------- [EAGLContext setCurrentContext:context]; }
// EAGLView.m
// ---------------------------------------------------------------------------- if (!defaultFramebuffer) - (void)dealloc
[self createFramebuffer]; {
#import <QuartzCore/QuartzCore.h> glDeleteTextures(1, &textureID);
#import "EAGLView.h" glBindFramebuffer(GL_FRAMEBUFFER, defaultFramebuffer);
// Tear down context.
@interface EAGLView (PrivateMethods) glViewport(0, 0, framebufferWidth, framebufferHeight); if ([EAGLContext currentContext] == context)
- (void)createFramebuffer; } [EAGLContext setCurrentContext:nil];
- (void)deleteFramebuffer; }
@end [context release];
- (BOOL)presentFramebuffer
@implementation EAGLView { [super dealloc];
BOOL success = FALSE; }
@synthesize context;
if (context) { - (void)viewDidUnload
// You must implement this method [EAGLContext setCurrentContext:context]; {
+ (Class)layerClass [super viewDidUnload];
{ glBindRenderbuffer(GL_RENDERBUFFER, colorRenderbuffer);
return [CAEAGLLayer class]; // Tear down context.
} success = [context presentRenderbuffer:GL_RENDERBUFFER]; if ([EAGLContext currentContext] == context)
} [EAGLContext setCurrentContext:nil];
//The EAGL view is stored in the nib file. When it's unarchived it's sent -initWithCoder:. self.context = nil;
- (id)initWithCoder:(NSCoder*)coder return success; }
{ }
self = [super initWithCoder:coder]; - (void)drawFrame
if (self) { - (void)layoutSubviews {
CAEAGLLayer *eaglLayer = (CAEAGLLayer *)self.layer; { [(EAGLView *)self.view setFramebuffer];
// The framebuffer will be re-created at the beginning of the next setFramebuffer
eaglLayer.opaque = TRUE; method call. // Replace the implementation of this method to do your own custom drawing.
eaglLayer.drawableProperties = [NSDictionary dictionaryWithObjectsAndKeys: [self deleteFramebuffer]; static const GLfloat squareVertices[] = {
[NSNumber numberWithBool:FALSE], } -0.5f, -0.33f,
kEAGLDrawablePropertyRetainedBacking, 0.5f, -0.33f,
kEAGLColorFormatRGBA8, @end -0.5f, 0.33f,
kEAGLDrawablePropertyColorFormat, 0.5f, 0.33f,
nil]; };
} // ----------------------------------------------------------------------------
// OpenGLESTextureViewController.m static const GLfloat texCoords[] = {
return self; // ---------------------------------------------------------------------------- 0.0, 1.0,
} 1.0, 1.0,
#import <QuartzCore/QuartzCore.h> 0.0, 0.0,
- (void)dealloc #import "OpenGLESTextureViewController.h" 1.0, 0.0
{ #import "EAGLView.h" };
[self deleteFramebuffer];
[context release]; @interface OpenGLESTextureViewController ()
@property (nonatomic, retain) EAGLContext *context; glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
[super dealloc]; @property (nonatomic, assign) CADisplayLink *displayLink; glClear(GL_COLOR_BUFFER_BIT);
} - (void) loadTexture;
@end glMatrixMode(GL_PROJECTION);
- (void)setContext:(EAGLContext *)newContext glLoadIdentity();
{ @implementation OpenGLESTextureViewController glMatrixMode(GL_MODELVIEW);
if (context != newContext) { glLoadIdentity();
[self deleteFramebuffer]; @synthesize animating, context, displayLink;
glVertexPointer(2, GL_FLOAT, 0, squareVertices);
[context release]; - (void)awakeFromNib glEnableClientState(GL_VERTEX_ARRAY);
context = [newContext retain]; { glTexCoordPointer(2, GL_FLOAT, 0, texCoords);
EAGLContext *aContext = [[EAGLContext alloc] initWithAPI:kEAGLRenderingAPIOpenGLES1]; glEnableClientState(GL_TEXTURE_COORD_ARRAY);
[EAGLContext setCurrentContext:nil];
} if (!aContext) glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
} NSLog(@"Failed to create ES context");

coronalabs.com
CONFIDENTIAL
- (void)createFramebuffer
{
if (context && !defaultFramebuffer) {
else if (![EAGLContext setCurrentContext:aContext])
NSLog(@"Failed to set ES context current");

self.context = aContext;
}

@end
[(EAGLView *)self.view presentFramebuffer];

local sky = display.newImage( "clouds.png" )

coronalabs.com
CONFIDENTIAL


local ground = display.newImage( "ground.png" )
ground.x = 160
ground.y = 445

coronalabs.com
CONFIDENTIAL


ground.x = 160
ground.y = 445

local crate = display.newImage( "crate.png" )
crate.x = 180
crate.y = 80
crate.rotation = 10

coronalabs.com
CONFIDENTIAL

local physics = require( "physics" )
physics.start()


ground.x = 160
ground.y = 445

crate.x = 180
crate.y = 80
crate.rotation = 10

coronalabs.com
CONFIDENTIAL

physics.start()


ground.x = 160
ground.y = 445

physics.addBody( ground, { friction=0.5 } )
ground.bodyType = "static"

crate.x = 180
crate.y = 80
crate.rotation = 10

coronalabs.com
CONFIDENTIAL

physics.start()


ground.x = 160
ground.y = 445

physics.addBody( ground, { friction=0.5 } )
ground.bodyType = "static"

crate.x = 180
crate.y = 80
crate.rotation = 10

physics.addBody( crate, { density=2.0,
coronalabs.com
CONFIDENTIAL
friction=0.5, bounce=0.3 } )

What if we want
lots of crates?

coronalabs.com
CONFIDENTIAL

crate.x = 180
crate.y = -100
crate.rotation = 10
physics.addBody( crate, { density=2.0,

coronalabs.com
CONFIDENTIAL

local function spawnCrate()
! local crate = display.newImage( "crate.png" )
! crate.x = math.random( 320 )
! crate.y = -100
! crate.rotation = 10
! physics.addBody( crate, { density=2.0,
end

timer.performWithDelay( 500, spawnCrate, 50 )

coronalabs.com
CONFIDENTIAL

What if gravity was up
rather than down?

coronalabs.com
CONFIDENTIAL

physics.setGravity( 0, 9.8 )

coronalabs.com
CONFIDENTIAL

physics.setGravity( 0, -9.8 )

coronalabs.com
CONFIDENTIAL

Events

• UI
• Buttons
• Animation
• Timers
• System


Listeners
local
listener
=
function(event)

print(
event.name,
event.time
)
end

Runtime:addEventListener("enterFrame",
listener)


Event Types
• enterFrame
• system
• orientation
• accelerometer
• GPS
• heading
• touch
• timer
• ...

Touch + Multitouch
Properties:
• x, y
• xStart, yStart
• phase
• id
• time

object:addEventListener("touch",
listener)

Let’s build a game on the fly!

www.coronalabs.com/gmic/pong.zip
coronalabs.com
CONFIDENTIAL

Pong-Lesson 1
Basic Animation

transition.to(ball,
{time=1000,x=440,y=300}
)


Pong-Lesson 2
Make paddles respond to touches

system.activate(
"multitouch"
)

local
function
startDrag(
event
)

-‐-‐
do
something
end

paddle1:addEventListener(
"touch",
startDrag
)
paddle2:addEventListener(
"touch",
startDrag
)


Pong-Lesson 2
local
function
startDrag(
event
)

local
t
=
event.target

local
phase
=
event.phase

if
"began"
==
phase
then

display.getCurrentStage():setFocus(
t,

event.id
)

t.isFocus
=
true

-‐-‐
Store
initial
position

t.x0
=
event.x
-‐
t.x

t.y0
=
event.y
-‐
t.y
...


Pong-Lesson 2
...

elseif
t.isFocus
then

if
"moved"
==
phase
then

if
(
event.y
-‐
t.y0
>
20
)

and
(
event.y
-‐
t.y0
<
_H-‐20
)
then

t.y
=
event.y
-‐
t.y0

end

elseif
"ended"==phase
or
"cancelled"==
phase
then

display.getCurrentStage():setFocus(
nil
)

t.isFocus
=
false

end

end

return
true
end

Pong-Lesson 3
Animate ball with physics

local
physics
=
require("physics")
physics.start()
physics.setGravity(
0,
0
)


Pong-Lesson 3
local
function
newBall()

ball
=
display.newImage(
"puck_yellow.png"
)

ball.x
=
_W/2

-‐-‐
center
it

ball.y
=
_H/2

ball:scale(
0.2,
0.2
)

physics.addBody(
ball,

{density=0.3,friction=0.6,radius=radius}
)

xVelocity
=
velocity

yVelocity
=
0

ball:setLinearVelocity(xVelocity,
yVelocity)
end

Pong-Lesson 4
Balls should bounce on paddles

physics.addBody(

paddle1,
{
density=0.3,
friction=0.6
}
)
paddle1.isFixedRotation
=
true
paddle1.isPlatform
=
true
paddle1.bodyType
=
"kinematic"

physics.addBody(

paddle2,
{
density=0.3,
friction=0.6
}
)
paddle2.isFixedRotation
=
true
paddle2.isPlatform
=
true
paddle2.bodyType
=
"kinematic"


Pong-Lesson 5
Paddles can change ball angle. Eliminate friction.

local
function
paddleCollision(
self,
event
)

-‐-‐
do
something
end

paddle1.collision
=
paddleCollision
paddle1:addEventListener("collision",
paddle1)

paddle2.collision
=
paddleCollision
paddle2:addEventListener("collision",
paddle2)


Pong-Lesson 5
local
function
paddleCollision(
self,
event

if(
event.phase
==
"began"
)
then

local
offset
=
self.y
-‐
event.other.y

local
totalSize
=
(radius+paddleHeight)/2

local
percent
=
math.abs(offset/totalSize)

xVelocity
=
xVelocity
*
-‐1

if
offset
>
0
then

yVelocity
=
(velocity*percent)
*
-‐1

else

yVelocity
=
(velocity*percent)

end

ball:setLinearVelocity(xVelocity,yVelocity)

end
end

Pong-Lesson 6
Ball should bounce at edges of screen

local
leftWall
=
display.newRect(10,0,2,_H)
physics.addBody(
leftWall
)
leftWall.bodyType
=
"kinematic"
leftWall.myName
=
"leftWall"

local
rightWall
=
display.newRect(470,0,2,_H)
physics.addBody(
rightWall
)
rightWall.bodyType
=
"kinematic"
rightWall.myName
=
"rightWall"


Pong-Lesson 6

local
topWall
=
display.newRect(0,0,_W,2)
physics.addBody(
topWall
)
topWall.bodyType
=
"kinematic"

local
bottomWall
=
display.newRect(0,_H-‐2,_W,2)
physics.addBody(
bottomWall
)
bottomWall.bodyType
=
"kinematic"


Pong-Lesson 7
Maintain ball’s velocity after bouncing oﬀ top/bottom walls

local
function
onCollide(
event
)

if(
event.phase
==
"began"
)
then

yVelocity
=
yVelocity
*
-‐1

ball:setLinearVelocity(xVelocity,yVelocity)

return
true

end
end

topWall:addEventListener("collision",onCollide)
bottomWall:addEventListener("collision",onCollide)


Pong-Lesson 8
Detect when ball gets past the paddle
local
function
onSideCollision(
event
)

if
(
event.phase
==
"began"
)
then

timer.performWithDelay(
33,
removeBall
)

timer.performWithDelay(
1000,
newBall
)

end

return
true

end

leftWall:addEventListener(

"collision",
onSideCollision
)

rightWall:addEventListener(

"collision",
onSideCollision
)

Multiple Screen Sizes/Shapes


Content Scaling in Corona


Content Scaling
-‐-‐
config.lua
application
=
{

content
=
{

width
=
320,

height
=
480,

scale
=
"letterbox",

},
}

• Code in content units (not screen pixels)
• width/height specify content dimensions
• Scale mode determines how physical display is filled

Retina Displays


Retina Imaging in Corona
-‐-‐
config.lua
application
=
{

content
=
{

width
=
320,

height
=
480,

scale
=
"letterbox",

imageSuffix
=
{

["-‐x15"]
=
1.5,

["-‐x2"]
=
2,

},

},
}


Retina Imaging API

display.newImageRect(
imageName,
w,
h
)

• width/height in content units (not screen pixels)
• Best matching image file based on scale factor
• Suﬃxes in config.lua determine image/scale mapping


Platforms = Trust


The developer community loves Corona
“In the past, we had to drop projects made in “I tried Obj-C but didn’t like the results. I found Gamesalad but
cocos2D because it was much more time wasn’t pleased with it and made the jump to Corona. I was loving it.
consuming. Corona is simple enough for an It gave me a lot more control and speed.” – Robert Nay, 14 year old
artist or designer to code a feature themselves.”
— Randy Shepherd, Cocos2d/Xbox developer “If you're serious about
developing apps and games but “For movement and performance,
“Corona performance don't want to get into Obj-C/ Appcelerator Titanium really wasn’t
“Thank you for making
is phenomenal! I love Xcode, I don't think GameSalad is an option. Corona really impressed me
Corona. I found it to be
the power and the right choice. I moved from when I saw how easy it was to get
the perfect SDK for a
flexibility. It allows me using GameSalad to Corona, graphics on to the screen and have
Flash developer like me.”
to make better games!” which is IMHO 100x better.” them look great on the device.” –
– Ferry Halim, famed
– Joe Kauffman, – Jon Beebe, ex-GameSalad user David Fox, web developer
Flash Developer and
Flash developer,
Webby Award winner
ex-GameSalad user “With Corona I felt right at home immediately, feels like JavaScript. I’m not
sleeping because the development is so addicting!” —Angelo Yazar, Unity Developer
“We were able to develop our
first application with Corona
in just a few days! Porting “We chose Corona because we’d get new
“Coming from Flash, it looked a
apps from Flash to Corona is component functions out more rapidly than
little too simplistic at the beginning,
quite easy and substantially via Cocoa Touch or Cocos2d. Supporting all
but Corona’s simplicity and ease of
lowers development costs.” of the iOS devices was a lot more seamless
use doesn’t limit what you can do.”
– Bohumil Vosicky, for us than was the case with Cocos2d.”
– Ruben Frosali, Flash Developer
educational developer — Mark Sigal, eBook publisher

“I explored many options for new iPhone “Many people think that mobile development is difficult because of the
developers and I have to say Corona just felt right. different programming languages (Objective-C, Java, etc.) For those
It was easy to pick up in a short time and powerful people, Corona is probably the best solution — it’s accessible, simple,
enough to enable really cool things to be done.” powerful, and not a barrier to creativity.” – Julian Paté, web developer
– Matt Pringle, designer for EA/3DO


Award-winning Technology

Staﬀ Pick

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Thriving Ecosystem
Zwoptex

Particle Candy Texture Packer

Sprite Deck Corona Project Manager

Corona
Photoshop Fireworks

iAppHost

Lime TextMate
Corona Remote

Corona in Print!


Corona as a career
Over 1000+ studios in 75 countries around the world

“In what I hope is a good omen of things to come, this December
I'm on track to earn substantially more money developing Corona-
based apps for clients than I will at my (pretty well-paid) day job.
2012 may just be the year I stop working for somebody else.”
– Jason Schroedere, designer for EA/3DO


Is it fun?

“What is so great about Corona is it is so easy to just write code and get things working.
You immediately see your results on the screen.
That is what was so great about Applesoft or Logo. But they were just toy graphic languages.
Yours is ﬁrst class.”
— Dave Lazarony,
Creator of ADM
(Adobe’s UI Framework)

Anyone can be #1... with Corona


Just for fun...


Get Corona free trial

www.CoronaLabs.com


Corona SDK Presentation at GMIC SV - October 19, 2012

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Corona SDK Presentation at GMIC SV - October 19, 2012