forked from: Rotoboobler

**********************************************  
forked by yonedashigeru  
http://wab.cc/  
**********************************************  
Rotoboobler (1,013bytes effect)
by Mr.doob

by yonedashigeru 19 Dec 2008

• Forked from mrdoob's Rotoboobler
• Diff: 12
• Related works: 10
Embed

//**********************************************  
//  
// forked from mrdoob  
// forked by yonedashigeru  
//  
// http://wab.cc/  
//  
//**********************************************  

// forked from mrdoob's Rotoboobler
//
// Rotoboobler (1,013bytes effect)
// by Mr.doob
//

package
{
    import flash.display.BitmapData;
    import flash.display.Sprite;
    import flash.events.Event;
    import flash.geom.Matrix;
    import flash.text.TextField;
    import flash.text.TextFormat;
    import flash.filters.DisplacementMapFilter;
    import flash.utils.getTimer;

    public class Rotoboobler extends Sprite
    {
        private var w : TextField, g : Sprite, gBD : BitmapData, mc : Sprite;

        public function Rotoboobler()
        {
            addEventListener(Event.ADDED_TO_STAGE, init);
        }
        
        private function init( e : Event ) : void
        {
            stage.align = "TL";
            stage.scaleMode = "noScale";

            g = new Sprite();
            gBD = new BitmapData( stage.stageWidth, stage.stageHeight, false, 0x000000);

            w = new TextField();
            w.defaultTextFormat = new TextFormat("Arial", 30);
            w.textColor = 0xffffff;
            w.autoSize = "left";

            mc = new Sprite();
            mc.alpha = .9;

            addChild(g);
            addChild(mc);

            addEventListener( "enterFrame", u );
        }

        private function u(e : Event) : void
        {
	    var ts:Number = Math.tan( getTimer() * 0.0003 +5 );
            var tc:Number = Math.acos( getTimer() * 1.0003 );	

	    w.text = String( getTimer() );
	
	    var wBD:BitmapData = new BitmapData(w.width,w.height, false, 0x000000);
	    wBD.draw(w);
	
	    g.graphics.clear();
	    g.graphics.beginGradientFill("radial", [0xFFFFFF, 0x000000], [1, 1], [0x00, 0xFF], new Matrix( ts * 0.5 + 0.5, 0, 0, ts * 0.5 + 0.5, stage.stageWidth * .5, stage.stageHeight * .5 ), "reflect", "linearRGB" ); 
	    g.graphics.drawRect( 0, 0, stage.stageWidth, stage.stageHeight );
	    gBD.draw(g);

	    mc.graphics.clear();
	    mc.graphics.beginBitmapFill(wBD, new Matrix( tc * ts + 1, ts, -ts, tc * ts + 1, 0, 0 ), true, false );
	    mc.graphics.drawRect( 0, 0, stage.stageWidth, stage.stageHeight );
	    mc.filters = [ new DisplacementMapFilter( gBD, null, 1, 1, tc * 500, tc * 500, "wrap", 0, 0 ) ];
        }
   }
}