Actionscript 3 Sandbox

2009-07-06T01:08:59Z

220.255.7.194:

AS3 brings the core language aspects of AS2 into complianace with ECMAScript standard (the international standardized programming language for scripting).

*http://www.flashandmath.com/
*http://www.learningactionscript3.com/2009/06/30/as3-tips-tricks-and-experiments/#more-61
*http://www.adobe.com/devnet/flash/quickstart/creating_class_as3/
*[http://www.bytearray.org/?page_id=82 interesting collection of as3 classes]
* http://www.bytearray.org/?page_id=82

== Basics of AS3 ==

OPTION F9 == Actions Panel

* The difference between AS2 and AS3:
<pre>AS2:
my_MC.createTextField("instance_name", 10,0,0 Stage.width, 22);
my_MC.attachMovie("MC_name", "moviename_mc, this.getNextHighestDepth());
10,0,0,Stage.width == dimensions
22 == depth

Versus AS3:
var myText:TextField = new TextField();
var myMC:MovieClip = new MovieClip();
now in AS3 you dont have to createTextField or attachMovie, and you can define all the variables later.
</pre>

* select the property (highlighted in blue in the Actions panel), and press F1 to see a help menu telling you about what values the property can have.
* strings must be in quotation marks (var userName:<DataType> = "Data";)
* you assign data type to the variable so you dont lose track of what it is.
* trace(variableName);
* trace("long text comment");
* function thing():void - the void means no return argument

<pre>function moveObj(thing:MovieClip):void
{
thing.y -= 50; // mc moves 50px up
thing.rotation += 45; // mc rotates 45 degrees right
}
moveObj(thing1_mc);</pre>

<pre>function moveObj(thing:MovieClip, movement:Number, rotationAmount:Number):void
{
thing.y -= movement; // mc moves 50px up
thing.rotation += rotationAmount; // mc rotates 45 degrees right
}
moveObj(thing1_mc, 50, 45);</pre>

<pre>function moveObj():Number // the number here defines what kind of thing is returned
{
thing1_mc.y -= 50;
thing1_mc.scaleY = 2;
return thing1_mc.y;
}
thing2_mc.y = moveObj();</pre>

* events must have listeners
<pre>myMC.addEventListener(type:String,function)
myMC.addEventLIstener(MouseEvent.CLICK, onClick);</pre>
we are looking for a MouseEvent.SpecificallytheClick and once we hear it a function "onClick" will run

<pre>function onClick(event:MouseEvent):void {
trace("its been clicked!!!");
}</pre>

Wikicliki - User contributions [en]

Actionscript 3 Sandbox