forked from: RainBow

/**
 * Copyright jokehn9 ( http://wonderfl.net/user/jokehn9 )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/qjsF
 */

// forked from jokehn9's RainBow
package {
    import flash.events.Event;
    import flash.events.MouseEvent;
    import flash.filters.BlurFilter;
    import flash.geom.Point;
    import flash.display.Shape;
    import flash.display.Bitmap;
    import flash.display.BitmapData;
    import flash.display.Sprite;
    public class FlashTest extends Sprite {
        public function FlashTest() {
            stage.frameRate = 24;
            // write as3 code here..
            var circleO:BitmapData = new BitmapData(465,465,true);
            var rainbow:Array = [Math.random()*0xffffff, Math.random()*0xffffff, Math.random()*0xffffff, Math.random()*0xffffff, Math.random()*0xffffff, Math.random()*0xffffff, Math.random()*0xffffff];
            var back:Shape = new Shape();
            back.graphics.beginFill(0xffff);
            back.graphics.drawRect(0,0,465,465);
            //circleO.draw(back);

            function circle(bd:BitmapData, cx:int, cy:int, R:Number, color:uint,acc:int):void {
                var p:Number = 1.25 - R
                var x:int = 0, y:int = R
                
                var i:Number = 0 ;
                for(i=0;i<R;i+=2) {
                    
                    bd.setPixel(cx, cy+R-i, color)
                    bd.setPixel(cx, cy-R+i, color)
                    bd.setPixel(cx+R-i, cy, color)
                    bd.setPixel(cx-R+i, cy, color)
                    
                    while(x < y){
                        
                        x+=1;
                        if(p < 0){
                        p += x*2 -1 ;
                        }else{
                        y-=1;
                        p += x*2 -1  - y*acc;
                        color = rainbow[x%7];
                    }
                    bd.setPixel(cx+x, cy+y, color)
                    bd.setPixel(cx-x, cy+y, color)
                    bd.setPixel(cx+x, cy-y, color)
                    bd.setPixel(cx-x, cy-y, color)
                    bd.setPixel(cx+y, cy+x, color)
                    bd.setPixel(cx-y, cy+x, color)
                    bd.setPixel(cx+y, cy-x, color)
                    bd.setPixel(cx-y, cy-x, color)
                    }
                    x = 0;
                    y = R-i;
                    p = 1.25 - y;
                }
                var k:int = 0;
                for(i=0;i<465;i++) {
                for(k=0;k<465;k++) {
                    if(bd.getPixel(i,k) >= 0xffffff) {
                        bd.setPixel(i,k,bd.getPixel(i-1,k-1)&0x444444);
                    }
                    else {
                        bd.setPixel(i,k,bd.getPixel(i,k)<<1);
                    }


                }

            }

                
            }
            stage.addEventListener("enterFrame",click);
            var ck:int = 0;
            var two:int = 0;
            var timer:int = 0;
            function click(e:Event):void {
                circle(circleO,232,232,300,0xff0000,ck);
                if(two == 0) {
                    ck++;
                    timer++;
                }
                else {
                    ck--;
                    timer++;
                }
                if(timer % 40 == 0) {
                    if(two == 0) {
                        two = 1;
                    }
                    else {
                        two = 0;
                    }
                    if(timer > 240) {
                        stage.removeEventListener("enterFrame", click);
                    }


                }


               

            }


            //circleO.applyFilter(circleO,circleO.rect, new Point, new BlurFilter(4,4));
            var i:int = 0;
            var k:int = 0;
            
            
            
            addChild(new Bitmap(circleO));
 
        }
    }
}