flash on 2011-6-17

/**
 * Copyright yama3 ( http://wonderfl.net/user/yama3 )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/i6rc
 */

package {
    import flash.display.Bitmap;
    import flash.display.BitmapData;
    import flash.display.BlendMode;
    import flash.display.Sprite;
    import flash.events.Event;
    import flash.geom.ColorTransform;
    import flash.geom.Matrix;
    import flash.text.TextField;
    import flash.text.TextFieldAutoSize;
    import flash.text.TextFormat;
    
    [SWF(backgroundColor="0x000000", frameRate="30", width="465", height="465")]
    
    public class FlashTest extends Sprite {
        private var bmd:BitmapData;
        private var colorTf:ColorTransform;
        private var drawMtarix:Matrix;
        private var texts:Array = [];
        private var textField:TextField;
        private var cnt:int;
        
        public function FlashTest() {
            if(stage) init();
            else addEventListener(Event.ADDED_TO_STAGE, init);            
        }
        
        private function init(event:Event=null):void
        {
            removeEventListener(Event.ADDED_TO_STAGE, init);
            graphics.beginFill(0x000000);
            graphics.drawRect(0, 0, stage.stageWidth, stage.stageHeight);
            addChild(new Bitmap(bmd = new BitmapData(465, 465, true, 0), "auto", true));
            textField = new TextField();
            textField.autoSize = TextFieldAutoSize.LEFT;
            textField.defaultTextFormat = new TextFormat("_sans", 40, 0xffffff);
            colorTf = new ColorTransform(0.98,0.98,1,1,-1,-1,-1,-1);
            drawMtarix = new Matrix();
            
            var i:uint, n:uint = 10;
            for(i = 0; i < n; i++) {
                texts[i] = new Text();
                textField.text = String.fromCharCode(Math.random()*26+65+(Math.random() < 0.5 ? 0 :32));
                texts[i].init(textField, i/n*400+32, Math.random()*232 + 232, (Math.random() - 0.5) * 0.05);
            }
            texts.sortOn("y", Array.NUMERIC);
            addEventListener(Event.ENTER_FRAME, loop);
        }
        
        private function loop(event:Event):void
        {
            bmd.lock();
            var i:uint, n:uint = texts.length;
            for(i=0; i<n; i++) {
                drawMtarix.a = drawMtarix.d = 1;
                drawMtarix.b = drawMtarix.c = drawMtarix.tx = drawMtarix.ty = 0;
                var t:Text = texts[i];
                drawMtarix.translate(-t.w/2, -t.h/2);
                drawMtarix.rotate(t.rad);
                drawMtarix.scale(1, 0.7);
                drawMtarix.translate(t.x, t.y);
                t.y -= 0.5, t.rad += t.vr;
                bmd.draw(t.bmd, drawMtarix, null, null, null, true);
                if(t.y < -20)
                {
                    textField.text = String.fromCharCode(Math.random() * 26 + 65 + (Math.random() < 0.5 ? 0 : 32));
                    t.init(textField, Math.random() * 465, Math.random() * 100 + 365, (Math.random() - 0.5) * 0.05);
                }
            }
            bmd.colorTransform(bmd.rect, colorTf);
            bmd.unlock();
        }
    }
}

import flash.display.BitmapData;
import flash.filters.DropShadowFilter;
import flash.geom.Matrix;
import flash.text.TextField;
class Text
{
    public var x:Number = 0, y:Number = 0;
    public var w:Number = 0, h:Number = 0;
    public var rad:Number = 0, vr:Number = 0;
    public var bmd:BitmapData;
    private static const effect:DropShadowFilter = new DropShadowFilter(0, 45, 0x00ffff, 1, 2, 2, 100);
    
    function Text() {}
    
    public function init(textField:TextField, x:Number, y:Number, vr:Number):void{
        this.x = x, this.y = y, this.vr = vr;
        w = textField.width * 1.5, h = textField.height * 1.5;
        if(bmd) bmd.dispose();
        bmd = new BitmapData(w, h, true, 0);
        bmd.lock();
        bmd.draw(textField, new Matrix(1, 0, 0, 1, (w - textField.width) / 2, (h - textField.height) / 2));
        bmd.applyFilter(bmd, bmd.rect, bmd.rect.topLeft, effect);
    }

}