forked from: flash on 2012-1-22

by Susisu 22 Jan 2012

• Forked from Susisu's flash on 2012-1-22
• Diff: 34
• Related works: 1
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// forked from Susisu's flash on 2012-1-22
package{
    import flash.display.Sprite;
    [SWF(frameRate="60")]
    public class Test extends Sprite{
        public function Test(){
            blendMode="layer";
            for(var i:int=0;i<5;i++){
                var s:Sprite=new FlashTest((Math.random()*0xff<<16)|(0x7f+Math.random()*0x80<<8));
                s.x=465/2;
                s.y=465/2;
                s.blendMode="multiply";
                s.rotation=360/5*i;
                addChild(s);
            }

        }

    }

}

    import flash.events.Event;
    import flash.display.Sprite;
    class FlashTest extends Sprite {
        private const s:Number=50;
        private var a:Number;
        public function FlashTest(color:int) {
            a=0;
            graphics.lineStyle(0,0x000000);
            graphics.beginFill(color,0.75);
            graphics.moveTo(0,0);
            addEventListener(Event.ENTER_FRAME,onEnterFrame);
        }
        private function onEnterFrame(e:Event):void{
            if(a>Math.PI*2){
                removeEventListener(Event.ENTER_FRAME,onEnterFrame);
                graphics.endFill();
            }
            var t:Number=r(a+Math.PI);
            if(a==0){
                graphics.moveTo(t*Math.cos(a+Math.PI)*s,t*Math.sin(a+Math.PI)*s);
            }
            else{
                graphics.lineTo(t*Math.cos(a+Math.PI)*s,t*Math.sin(a+Math.PI)*s);
            }
            a+=Math.PI/90;
        }
        private function r(a:Number):Number{
            var t:Number=1;
            for(var i:int=1;i<33;i++){
                t+=Math.cos(i*i*a)/i/i;
            }
            return t;
        }

    }