Archive for the actionscript 2.0 Category

Uniquely Compile AS2 with JSFL – Avoiding Class/Namespace Collision between swfs

AS2 does not have the concept of an application domain. So if you are loading multiple child SWFs into your AS2 project, any classes that the SWFs share will be cached at their first use. The cached definitions will stand in for any following references to the class. Not always good, and depending on your project, it can cause some pretty serious issues and headaches. Need a way around this AS2 class collision issue? Me too, so I made one.

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Event Bubbling in AS2

Yes, we all know the numbers. FlashPlayer 9 is at 97% penetration worldwide. After a year of primarily AS3 development (not starting any new AS2 projects), I find myself working on a project back-porting AS3 into AS2. Ohhhhhh yay, what a joy! I love the screwy event model, the rigid display list, having to fake document classes, not being able to do new MovieClip(), … and the list goes on… Regardless, this is my task, and I will prevail with flying colors (are you with me?) !

One requirement to keeping the code bases similar is to implement event bubbling in AS2. I looked around for a few techniques we could implement into our ‘new’ AS2 code, but had trouble finding an example that could be added cleanly into our project. We needed something that could extend MovieClip, and allow any subclass to bubble events up their respective _parent chain. I definitely found some working bubbling techniques, mainly this one, but decided to re-familiarize myself with AS2 by encapsulating this whole bubbly stuff.

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Cake 1.2 SWX problem solved

Recently I was asked to use SWX to tie into a CakePHP project. Integrating SWX was a piece of cake (cheap pun :) ), but in the middle of development, walker upgraded our Cake core to version 1.2 and all of our SWX started dying. If you have run into this problem, the fix is pretty simple:

edit all of your gateway files in your webroot (cake_amf_gatway.php, cake_json_gateway.php, and cake_swx_gateway.php) by replacing:

loadController(null)

with

App::import('Controller', 'App')

that ought to take care of your BadCall errors.

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Double Click event in AS2

Some of us are still use AS2 here and there, and some of us want to be able to capture something like the AS3 MouseEvent.DOUBLE_CLICK. I wrote a simple decorator class called DoubleClickable to give a MovieClip the ability to broadcast doubleClick events.

The example below is hopefully pretty self explanatory :)

Just import the class and wrap your Movieclip@s with the the @DoubleClickable class.

import com.visicswire.wrappers.DoubleClickable;

var dbc:DoubleClickable = new DoubleClickable(star);
dbc.addEventListener('doubleClick', Delegate.create(this, _handleDbleClick));

Grab the source files for a hands on example.

Dynamically Register MovieClips in AS2

I found this great little class yesterday while trolling around for a current solution to registering loaded images to their center. Darron Schall wrote this little gem a llllooooong time ago, but nonetheless his DynamicRegistration solution is very handy and clean to mix-in with your projects.