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Nate Beck covers some of the hurdles and headaches that Flash game developers encounter when they decide to take their games to mobile devices.
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Going MobileBy Nate Beck
ADL, PFI... WTF?ADL - AIR Debug Launcher - Using ADL, you can run an application without first packaging and installing it.
ADT - AIR Developer Tool - ADT is a multi-purpose, command-line tool for developing AIR applications.
PFI - Packager For iPhone - Completely replaced by ADT.iOS - The OS for iPads, iPod Touch and iPhones
The Markets... that support Adobe Flash
$99 / year $25
$99 / year ¹ $0 $0
30% 30% 30% 30% 30%
5 1 3 2 11
~570,000
~395,000 ~30,400 ~3,030 ~4,000
Membership Fee
Revenue Split
Overall Difficulty 1(easy) to 10
(hard)Number of Apps
¹ At the moment, first year is freeSource - Apple App Store - http://148apps.biz/app-store-metrics/Source - Android Market - http://www.appbrain.com/stats/
Case Study – Word Wars
Build Process
ADTExecutable
Assets BAR
IPA
APK
Application DescriptorId
Version NumberRender ModeAuto OrientationAspect RatioFull ScreenOnscreen Keyboard BehaviorIcons PathsDevice ProfilePermissionsiPhone Settings
DEVICES SUCK
Your finger is not transparent
THIS NOT THIS
Devices do not have roll over or
roll out
TouchEvents are different than MouseEvents flash.ui.Multitouchflash.ui.MultitouchInputMode
Let’s not forget about gestures
flash.events.TransformGestureEvent
Use Enter Framenot Mouse Move
Screen Density!=
Screen Resolution
150 x 40 pixel button
Desktop monitor@100 dpi
= 1.5” x 0.4”
Galaxy Tab@160 dpi
= 0.9” x 0.25”
Droid 2@240 dpi
= 0.6” x 0.17”
iPhone 4@320 dpi
= 0.46” x 0.13”
Same pixel count, different physical sizes(Minimum recommended size: 0.25” x 0.25”)
Screen Density != Screen Resolution
3.5 inch diagonal screen
Same physical size, different pixel counts
Screen Density != Screen Resolution
Classification
160 DPI
Devices Most tabletsiPhone 3GS
Motorola Droid Pro
Mapped range
< 200 DPI
Typical range 132 DPI (iPad)to
181 DPI (HTC Hero)
240 DPI
Most Android phones
>= 200 DPI<= 280 DPI
217 DPI (HTC Evo)to
254 DPI (NexusOne)
320 DPI
iPhone 4
> 280 DPI
326 DPI (iPhone 4)
Screen Density != Screen Resolution
Devices have differing aspect ratios
Some devices have additional
stuff...
Capabilitiesflash.system.Capabilitie
s
Devices have orientations
StageOrientationEvent.ORIENTATION_CHANGINGstage.setOrientation( StageOrientation.UPSIDE_DO
WN );
AccelerometersGet your tilt on.
Emulators
Testing on the Device
!FAIL
WiFi Debug OnlyLong Build TimesMobile Provisions
Certificates
WiFi and USB DebugFaster Build Times
WiFi Debug OnlyDebug Tokens
Signing
Full Screen
Permissions(Android / Playbook)
android.permission.INTERNETandroid.permission.WRITE_EXTERNAL_STORAGEandroid.permission.READ_PHONE_STATEandroid.permission.ACCESS_FINE_LOCATIONandroid.permission.DISABLE_KEYGUARDandroid.permission.WAKE_LOCKandroid.permission.CAMERAandroid.permission.RECORD_AUDIOandroid.permission.ACCESS_NETWORK_STATEandroid.permission.ACCESS_WIFI_STATE
CPU vs GPU
CPU - blittingiOS - 20 FPS
Droid - 24 FPS
GPU - DisplayObjectiOS - 34 FPS
Droid - 32 FPS
Playbook is wicked fast
Molehill, Stage3D?“Stage3D for mobile is planned for middle of next year,
but we are working hard on it to make it more like beginning of next year”
- Thibault Imbert, Flash Player Product ManagerOctober 31, 2011
“Adobe AIR 3.2 release candidate is now available for download. This build introduces the Stage3D API to iOS and Android devices, enabling full hardware accelerated 2D and
3D graphics for mobile apps.”- Adobe Labs, compliments of Thibault
February 27, 2012
Hugs For Thibault
Use a Framework
ANT is your friend(or maven if you’re a cool
kid)
Build servers are awesome
+
Hosting your build servers
Your game can (and will) be interrupted,
at any timestage.addEventListener(Event.DEACTIVATE, onDeactivate);
stage.addEventListener(Event.ACTIVATE, onActive);
Piracy can be a problem
Please use Version Control... please
Questions?