Most useful ActionScript packages / libraries

Question

What are some useful plug-ins, packages or source-code for ActionScript?

Please include ActionScript version, name, link and description.

Answer 1

<Shameless self-plug>

asMock : Dynamic mocking framework for AS3 with integration support for FlexUnit 1/4.0/4.1, ASUnit and fluint

</Shameless self-plug>

Answer 2

Did someone already mentioned Starling?

I just discovered this a couple of days ago, so check by yourselves and if someone knows a little about it, I will be glad to know your opinion.

Best regards. Nicolas.

Answer 3

AS2-AS3
Greensock's TweenMax
Simplifies creating animation in code.

Answer 4

A clear, lightweight and performant data structures / collections library:

AS3Commons Collections

Layout framework:

AS3Commons UI - Layouts

Answer 5

Common libraries:

http://casalib.org/
http://code.google.com/p/as3corelib/

Physics Engines:

http://box2dflash.sourceforge.net/
http://www.cove.org/ape/

Flash 3D engines:

http://away3d.com/
http://papervision3d.org/
http://alternativaplatform.com/en/
http://www.flashsandy.org/

Tweening:

http://greensock.com/gsap-as/
http://www.gskinner.com/libraries/gtween/

Graph/Chart + Particles:

http://flare.prefuse.org/demo/

Chart:

http://pullmonkey.com/projects/open_flash_chart

Particles:

http://flintparticles.org/

Game Engine:

https://code.google.com/p/pushbuttonengine/

Augmented Reality:

http://www.libspark.org/wiki/saqoosha/FLARToolKit/en

Answer 6

http://www.unionplatform.com

A client/server framework for creating multiuser applications and multiplayer games.