flash 五彩斑斓特效

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package

{

    import flash.display.*;

    import flash.events.*;

    import flash.geom.*;

    [SWF(backgroundColor="0x000000")]

    public class main extends Sprite

    {

        private var obj:Array = new Array();

        private var bmd:BitmapData,bmp:Bitmap,container:Sprite;

        

        public function main()

        {

            bmd = new BitmapData( 465,465,true,0x000000 );

            bmp = addChild( new Bitmap( bmd ) ) as Bitmap;

            container = addChild( new Sprite ) as Sprite;

            container.visible = false;

            for(var i:uint = 0; i < 100; i++)

            {

                obj[i] = new ball();

                container.addChild(obj[i]);

            }

            

            stage.addEventListener(Event.ENTER_FRAME,frame);

        }

        

        private function frame(e:Event):void

        {

            for(var i:String in obj)

            {

                obj[i].run();

            }

            var m:Matrix = new Matrix;

            bmd.draw( container,m,new ColorTransform( .7,.1,.2,1),"add" );

            bmd.colorTransform( bmd.rect,new ColorTransform( 1,1,.97 ) );

        }

    }

}



import flash.display.*;

import flash.filters.*;

class ball extends Shape

{

    private var r:uint = 15;

    private var s:Number= ( Math.random()*3 | 0 ) + 2;

    private var b:Number= -5,bb:int = -5;

    function ball()

    {

        //s = Math.random()*2 | 0 ? s : -s;

        x = Math.round(Math.random() * 450);

        y = s > 0 ? -r - Math.random()*450: 465 + r + Math.random()*450;

        graphics.beginFill(Math.round(Math.random() * 255 * 255 * 255),1);

        graphics.drawCircle(0,( Math.random()*r | 0 ) + 4);

        graphics.endFill();

        this.filters = [ new BlurFilter( -b,-b,2 ) ];

    }

    

    public function run():void

    {



        if( s < 0 ) {

            if(y + r < 0)

            {

                x = Math.round(Math.random() * 450);

                y = 465 + r;

                scaleX = scaleY = 1;

            }

        } else {

            if(y - r > 465)

            {

                x = Math.round(Math.random() * 450);

                y = -r;

                scaleX = scaleY = 1;

            }

        }

        scaleX += 0.001;

        scaleY += 0.001;

        y += s;

    }



}