Monthly Archives: December 2008

Object.prototype Crap

By Zevan | December 7, 2008
CLICK HERE TO COPY
Actionscript:
  1. Object.prototype.myVar = "I am a variable";
  2.  
  3. var s:Sprite = new Sprite();
  4.  
  5. trace(Object(s).myVar);
  6.  
  7. var v:Video = new Video();
  8. trace(Object(v).myVar);

This.... should not be done... and setting myVar like this:

CLICK HERE TO COPY
Actionscript:
  1. Object(s).myVar = "hello";

Will cause an error....

I keep a folder on my laptop for this website..... when I have a random snippet idea I put it in this folder.... Every couple of weeks I go through this folder and turn select snippets into posts.... when I rediscovered this snippet today it really made me laugh....

Posted in Object, dynamic | Tagged , , | Leave a comment

Random Walk

By Zevan | December 6, 2008
CLICK HERE TO COPY
Actionscript:
  1. var xp:Number=Math.random() * stage.stageWidth;
  2. var yp:Number=Math.random() * stage.stageHeight;
  3. graphics.lineStyle(0,0x000000);
  4. graphics.moveTo(xp, yp);
  5. addEventListener(Event.ENTER_FRAME, onLoop);
  6. function onLoop(evt:Event):void {
  7.     xp+=Math.random()*10-5;
  8.     yp+=Math.random()*10-5;
  9.     graphics.lineTo(xp, yp);
  10. }

Nothing special here, but its good to know that this technique has a name... and that it's NOT Brownian Motion... more here.

Posted in Graphics, motion | Tagged , , | Leave a comment

new BitmapData() One-Liner

By Zevan | December 5, 2008
CLICK HERE TO COPY
Actionscript:
  1. Bitmap(addChild(new Bitmap(new BitmapData(100,100,false,0x000000)))).bitmapData.fillRect(new Rectangle(10,10,10,10), 0xFF0000);

Posted in BitmapData, one-liners | Tagged , | Leave a comment

Format Phone #

By Zevan | December 4, 2008
CLICK HERE TO COPY
Actionscript:
  1. var phoneField:TextField = new TextField();
  2. with (phoneField) {
  3.     type=TextFieldType.INPUT;
  4.     maxChars=12;
  5.     restrict="0-9";
  6.     border=true;
  7.     width=100;
  8.     height=20;
  9.     x=y=20;
  10. }
  11. addChild(phoneField);
  12.  
  13. phoneField.addEventListener(TextEvent.TEXT_INPUT, onInput);
  14.  
  15. function onInput(evt:TextEvent):void {
  16.     if (phoneField.length==3 || phoneField.length==7) {
  17.         phoneField.appendText("-");
  18.         var leng:int=phoneField.text.length;
  19.         phoneField.setSelection(leng, leng);
  20.     }
  21. }

Quick way to make sure text input is formatted like a phone number.

Posted in string manipulation | Tagged , , | Leave a comment