Dynamically create and loop through MovieClip instances

Task: You need to dynamically create and then loop through MovieClips.

Solution: Use DisplayList and DisplayListContainer container methods.

var container:MovieClip = new MovieClip();

addChild(container);

var numItems:Number = 250;

var stageWidth:Number = stage.stageWidth;

var stageHeight:Number = stage.stageHeight;

function initClips():void

{

var c:MovieClip;

for(var i:Number = 0; i <>

{

c = new circle_mc();

randomizeClip(c);

container.addChild(c);

}

}

function randomizeClip(clip:MovieClip):void

{

clip.x = Math.random() * stageWidth;

clip.y = Math.random() * stageHeight;

clip.scaleX = Math.random() * 2;

clip.scaleY = Math.random() * 2;

var c:ColorTransform = new ColorTransform();

c.color = (Math.random() * 0xFFFFFF);

clip.transform.colorTransform = c;

clip.alpha = Math.random();

}

function onEnterFrame(event:Event):void

{

var c:MovieClip;

for(var i:Number = 0; i <>)

{

c = MovieClip(container.getChildAt(i));

randomizeClip(c);

}

}

initClips();

addEventListener(Event.ENTER_FRAME, onEnterFrame);

Play an embedded sound in AS3

Task: You need to play a sound contained within your content and set its volume.

Solution: Use the Sound, SoundChannel, and SoundTransform classes to play and

manipulate sounds.

function onSoundComplete(event:Event):void

{

trace("sound is completed");

}

var my_sound:Sound = new beep_id();

var sTransform:SoundTransform = new SoundTransform();

sTransform.volume = .5;

var channel:SoundChannel = my_sound.play();

channel.soundTransform = sTransform;

channel.addEventListener(Event.SOUND_COMPLETE, onSoundComplete);

Setting the class name for an embedded

sound for ActionScript 3

Dynamically load and display an image in AS3

Task: You need to dynamically load and display an image.

var request:URLRequest = new URLRequest("image.png");

var loader:Loader = new Loader();

loader.load(request);

loader.x = 100;

loader.y = 100;

loader.rotation = 20;

loader.alpha = .5;

addChild(loader);

Dynamically load and play a sound in AS3

Task: You need to dynamically load and play an MP3 file.

var url = new URLRequest("sound.mp3");

var sound = new Sound();

sound.load(url);

sound.play();

Load and read XML in AS3

Task: You need to load and read an XML file.

onXMLLoad(event:Event):void

{

var xml:XML = new XML(event.target.data);

trace(xml);

trace("Number of Contacts : " + xml..person.length());

trace("First contact’s favorite food : " + xml.contacts.person[0].favoriteFood);

}

var loader:URLLoader = new URLLoader();

var url:URLRequest = new URLRequest("contacts.xml");

loader.addEventListener(Event.COMPLETE, onXMLLoad);

loader.load(url);

Note: examples, use the following XML contained in a file called contacts.xml:

<xml>

<contacts>

<person>

<name>Mike Chambers</name>

<favoriteFood>Bacon</favoriteFood>

</person>

<person>

<name>John Doe</name>

<favoriteFood>Pez</favoriteFood>

</person>

</contacts>

</xml>