I wanna Runaway

by 0xABCDEF 03 May 2010

Tags

粒子模糊 粒子效果
Embed

/**
 * Copyright 0xABCDEF ( http://wonderfl.net/user/0xABCDEF )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/7edN
 */

package {
	import flash.display.Sprite;
	import flash.display.Shape;
	import flash.display.Bitmap;
	import flash.display.BitmapData;
	import flash.events.Event;
	import flash.filters.BlurFilter;
	import flash.filters.DisplacementMapFilter;
	import flash.geom.ColorTransform;
	import flash.geom.Point;
	import flash.geom.Rectangle;
	import flash.media.Sound;
	import flash.media.SoundChannel;
	import flash.net.URLRequest;
	import flash.system.Security;
	[SWF(width=400, height=400, backgroundColor=0x000000, frameRate=120)]
	public class Runaway extends Sprite {
		public function Runaway() {
			Wonderfl.capture_delay(30);
			
			Security.loadPolicyFile("http://www.selat.net/hnar/crossdomain.xml");
			
			var i:int;
			
			var so:Sound = new Sound(new URLRequest("http://www.selat.net/hnar/Runaway.mp3"));
			var c:SoundChannel = so.play();
			stage.addEventListener(Event.ENTER_FRAME,ef);
			
			var s:Shape = new Shape();
			var ps:Sprite = new Sprite();
			var sa:Array = new Array();
			
			const sw:uint = 400;
			const sh:uint = 400;
			
			var bd:BitmapData = new BitmapData(sw,sh,false,0);
			var b:Bitmap = new Bitmap(bd);
			stage.addChild(b);
			
			const nct:ColorTransform = new ColorTransform(1,1,1,0.2);
			var nbd:Array = new Array();
			for(i=0;i<10;i++){
				nbd[i] = new BitmapData(sw,sh,true);
				nbd[i].noise(Math.random()*100000);
				nbd[i].colorTransform(nbd[i].rect,nct);
			}
			
			const p:Point = new Point();
			
			const bf:BlurFilter = new BlurFilter(8,8,6);
			const ct:ColorTransform = new ColorTransform(0.995,0.995,0.995);
			var df:DisplacementMapFilter = new DisplacementMapFilter(bd,p,1,1);
			
			var a:Number = 0;
			
			var pa:Array = new Array();
			
			function ef(e:Event):void {
				s.graphics.clear();
				pa.push({x:sw/2,y:sh/2,a:Math.random()*360,r:c.leftPeak*50,c:(Math.random()*0xFFFFFF)|0x333333});
				pa.push({x:sw/2,y:sh/2,a:Math.random()*360,r:c.rightPeak*50,c:(Math.random()*0xFFFFFF)|0x333333});
				for(i=0;i<pa.length;i++){
					s.graphics.beginFill(pa[i].c);
					s.graphics.drawCircle(pa[i].x,pa[i].y,pa[i].r);
					s.graphics.endFill();
					s.blendMode = "add";
					ps.addChild(s);
					sa.push(s);
					pa[i].x += Point.polar(pa[i].r,pa[i].a).x;
					pa[i].y += Point.polar(pa[i].r,pa[i].a).y;
					pa[i].r -= 1;
					if((pa[i].x>sw)||(pa[i].x<0)||(pa[i].y>sh)||(pa[i].y<0)||(pa[i].r<=0.5)){
						ps.removeChild(sa[i]);
						pa.splice(i,1);
					}
				}
				a += (Math.random()*4-2)*(c.leftPeak+c.rightPeak);
				df.scaleX = Point.polar((c.leftPeak+c.rightPeak)*120,a).x;
				df.scaleY = Point.polar((c.leftPeak+c.rightPeak)*120,a).y;
				bd.draw(ps);
				bd.applyFilter(bd,bd.rect,p,bf);
				bd.copyPixels(nbd[Math.floor(Math.random()*10)],bd.rect,p,null,null,true);
				bd.applyFilter(bd,bd.rect,p,df);
				bd.colorTransform(bd.rect,ct);
			}
		}
	}
}