forcemap

一応3D

by about 20 Mar 2013

Embed

/**
 * Copyright about ( http://wonderfl.net/user/about )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/yKA5
 */

package
{
    import flash.display.Bitmap;
    import flash.display.BitmapData;
    import flash.display.BitmapDataChannel;
    import flash.display.Sprite;
    import flash.events.Event;
    import flash.events.MouseEvent;
    import flash.events.TimerEvent;
    import flash.filters.BlurFilter;
    import flash.geom.ColorTransform;
    import flash.geom.Rectangle;
    import flash.utils.Timer;
    
    [SWF(width="500",height="500",backgroundColor="0")]
    public class particle5 extends Sprite
    {
        private var bmpd:BitmapData;
        private var forcemap:BitmapData;
        private var bmp:Bitmap;
        private var colortf:ColorTransform;
        private var particles:Vector.<Particle>;
        private var blur:BlurFilter = new BlurFilter(4,4,1);
        private var timer:Timer = new Timer(8000);
        
        public function particle5()
        {
            bmpd = new BitmapData(500,500,false,0);
            forcemap = new BitmapData(500,500,false,0);
            
            bmp = new Bitmap(bmpd);
            addChild(bmp);
//            addChild(new Bitmap(forcemap));
            
            //残像
            colortf = new ColorTransform(0,.79,.99,1);
            onMouseClick();
            addEventListener(Event.ENTER_FRAME,onEnterFrame);
            stage.addEventListener(MouseEvent.CLICK,onMouseClick);
            timer.start();
            timer.addEventListener(TimerEvent.TIMER,onTimerEvent);
        }
        
        private function onEnterFrame(e:Event):void{
            bmpd.colorTransform(new Rectangle(0,0,500,500),colortf);
            bmpd.applyFilter(bmpd,bmpd.rect,bmpd.rect.topLeft,blur); 
            
            var len:Number = particles.length;
            
            bmpd.lock();
            while(len--){
                var p:Particle = particles[len];
                //色のピクセルを取得
                var color:Number = forcemap.getPixel(p.xx,p.yy);
                //赤
                var r:int = color >> 16 & 0xff;
                //緑
                var g:int = color >> 8 & 0xff;
                //青
                var b:int = color & 0xff;
                
                p.ax = (r-128)*0.006;
                p.ay = (g-128)*0.006;
                p.az = (b-128)*0.006;
                p.vx += p.ax;
                p.vy += p.ay;
                p.vz += p.az;
                p.xx += p.vx;
                p.yy += p.vy;
                p.zz += p.vz;
                
                p.ax *= 0.98;
                p.ay *= 0.98;
                p.az *= 0.98;
                p.vx *= 0.93;
                p.vy *= 0.93;
                p.vz *= 0.93;
                
                bmpd.fillRect(new Rectangle(p.xx,p.yy,2,2),0xffffff);
                //はみ出した時の処理
                if(p.xx < 0) p.xx = 500+p.xx;
                else if(p.xx > 500) p.xx = p.xx-500;
                if(p.yy < 0) p.yy = 500+p.yy;
                else if(p.yy > 500) p.yy = p.yy-500;
                if(p.zz < 0) p.zz = 500+p.zz;
                else if(p.zz > 500) p.zz = p.zz-500;
            }
            bmpd.unlock();
        }
        
        private function onMouseClick(e:MouseEvent = null):void{
//            timer.stop();
            timer.reset();
            timer.start();
            particles = new Vector.<Particle>;
            for(var i:int=0;i<10000;i++){
                var p:Particle = new Particle();
                p.xx = Math.random()*500;
                p.yy = Math.random()*500;
                p.zz = Math.random()*500;
                p.vx = p.vy = p.vz = p.ax = p.ay = p.az =0;
                particles.push(p);
            }
            forcemap.perlinNoise(200,200,4,Math.floor(Math.random()*0xffff),false,true,3|1|4|0);
        }
        private function onTimerEvent(e:TimerEvent):void{
            trace("aaaa");
            forcemap.perlinNoise(200,200,4,Math.floor(Math.random()*0xffff),false,true,3|1|4|0);
        }
    }
}

class Particle{
    public var xx:Number;
    public var yy:Number;
    public var zz:Number;
    public var vx:Number;
    public var vy:Number;
    public var vz:Number;
    public var ax:Number;
    public var ay:Number;
    public var az:Number;
}