flash AS3.0代码打造逼真涟漪

详细代码：

stage.frameRate=80;

function init(x1:Number,y1:Number) {

        var mc:MovieClip=new MovieClip();

        addChildAt(mc,1);

        mc.x=x1;

        mc.y=y1;

        mc.graphics.lineStyle(0.5,0xbbffff,0.6);

        mc.graphics.drawEllipse(-1,-0.3,2,0.6);

        mc.addEventListener(Event.ENTER_FRAME,frame);

        var v0=0.5+0.3*Math.random();

        function frame(e) {

                mc.scaleX=mc.scaleY+=v0;

                mc.alpha>0?mc.alpha-=0.02:[mc.removeEventListener(Event.ENTER_FRAME,frame),removeChild(mc),mc=null];

        }

}

function xiayu() {

        var timer:Timer=new Timer(200,2);

        timer.addEventListener(TimerEvent.TIMER,onTimer);

        var mc:MovieClip=new MovieClip();

        mc.graphics.beginFill(0xbbffff,0.8);

        mc.graphics.drawEllipse(-0.5,-2,1,4);

        addChildAt(mc,1);

        mc.scaleX=mc.scaleY=0.7+0.3*Math.random();

        var x0=mc.x=50+Math.random()*450;

        mc.y=-10-20*Math.random();

        var y0=30+350*Math.random();

        mc.addEventListener(Event.ENTER_FRAME,frameB);

        function frameB(e) {

                if (mc.y<y0) {

                        mc.y+=5;

                } else {

                        mc.removeEventListener(Event.ENTER_FRAME,frameB);

                        removeChild(mc);

                        mc=null;

                        init(x0,y0);

                        timer.start();

                }

        }

        function onTimer(e) {

                init(x0,y0);

        }

}

var t:Timer=new Timer(100,0);

t.addEventListener(TimerEvent.TIMER,onT);

t.start();

function onT(e) {

        xiayu();

        xiayu();

}

var tu:Hehua=new Hehua();

addChild(tu);

var kj:MovieClip=new Kj  ;

addChild(kj);

补充：flash教程,As3.0