Forked from:: mrdoob's Interactive blobs

forked from: Interactive blobs

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favorite:2
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license : All rights reserved
modified : 2011-01-19 00:25:23

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package
{
    import flash.display.Bitmap;
    import flash.display.BitmapData;
    import flash.display.MovieClip;
    import flash.display.Sprite;
    import flash.events.Event;
    import flash.filters.BlurFilter;
    import flash.geom.Point;
    import flash.geom.Rectangle;

[SWF( backgroundColor='0x000000', frameRate='50', width='800', height='600')]
    
    public class BlobsInteractive extends Sprite
    {
        private var bl    :Array;
        private var r    :Bitmap;
        private var c    :Sprite;
        private var b    :Sprite;
        private var s    :Number = 0;
        private var p    :Number = .9;
        private var container:Sprite;
        
        public function BlobsInteractive()
        {
            stage.align = "TL";
            stage.scaleMode = "noScale";
            container = new Sprite();
            
            bl = new Array();

b = new Sprite();
            b.graphics.beginFill(0x000000,1);
            b.graphics.lineTo(stage.stageWidth,0);
            b.graphics.lineTo(stage.stageWidth,stage.stageHeight);
            b.graphics.lineTo(0,stage.stageHeight);
            b.graphics.lineTo(0,0);
            b.graphics.endFill();
            container.addChild(b);

c = new Sprite();
            c.filters = [new BlurFilter(20,20,2)];
            container.addChild(c);

r = new Bitmap( new BitmapData( stage.stageWidth, stage.stageHeight, false, 0x00FFFFFF ) );
            
            container.addChild(b);
            container.addChild(c);
            container.addChild(r);
            //container.width = stage.stageWidth * 2;
            //container.height = stage.stageHeight * 2;

buttonMode = true;
            
            // local coordinate in the container
            b.x = - b.width/2;
            b.y = - b.height/2;
            
            c.x = - c.width/2;
            c.y = - c.height/2;
            
            r.x = - r.width/2;
            r.y = - r.height/2;
            
            // add the container to the display list
            this.addChild(container);
            // at the middle of the stage
            container.x = stage.stageWidth/2;
            container.y = stage.stageHeight/2;
                        
            this.addEventListener( "enterFrame", u );
            this.addEventListener( "mouseUp", mu );
            this.addEventListener( "mouseDown", md );
            //this.addEventListener( "mouseDown", shakeObject );            
        }

private function u(e:Event):void
        {
            for (var i:Number = 0; i < 100; i ++)
            {
                if (!bl[i])
                {                    
                    var rndmAlpha:Number = Math.random();
                    bl[i] = new MovieClip();
                    
                    if (i % 2 == 0) {
                        bl[i].graphics.beginFill(0xFF7004A, 1);
                        //(bl[i] as MovieClip).graphics.drawRect(0,0,widthHeight, widthHeight);                    
                    } else {
                        bl[i].graphics.beginFill(0x0470FFA, 1);
                        //bl[i].graphics.drawCircle(0,0,Math.random() * 20+5);
                    }
                    
                    //bl[i].graphics.drawCircle(0,0,Math.random()*40+5);
                    bl[i].graphics.drawCircle(0,0,Math.random()*20+5);
                    
                    bl[i].x = stage.stageWidth*.5 + Math.random()*1000-500;
                    bl[i].y = stage.stageHeight*.5 + Math.random()*1000-500;
                    bl[i].xspeed = bl[i].yspeed = 0;
                    bl[i].cycle = Math.random() * .01 + .0005;
                    bl[i].offsetx = Math.random() * 200-100;
                    bl[i].offsety = Math.random() * 200-100;
                    c.addChild(bl[i]);
                }
                
                bl[i].x += bl[i].xspeed = (( mouseX - bl[i].x + bl[i].offsetx) * bl[i].cycle ) + ( bl[i].xspeed * p);
                bl[i].y += bl[i].yspeed = (( mouseY - bl[i].y + bl[i].offsety) * bl[i].cycle ) + ( bl[i].yspeed * p);
            }
            r.bitmapData.fillRect(new Rectangle(0,0,stage.stageWidth, stage.stageHeight),0x00FFFFFF);
            r.bitmapData.draw(c);
            r.bitmapData.threshold(r.bitmapData,
                new Rectangle(0,0,stage.stageWidth, stage.stageHeight),
                new Point(0,0),
                ">",
                0x00800000,
                0x000000FF,
                0x00808080,
                true);
            //md(null);
            //this.container.rotation += 2;
            
        }

private function md(e:Event):void
        {
            for (var i:Number = 0; i < bl.length; i ++)
            {
                bl[i].offsetx = Math.random()*1000-500;
                bl[i].offsety = Math.random()*1000-500;
            }
        }

private function mu(e:Event):void
        {
            for (var i:Number = 0; i < bl.length; i ++)
            {
                bl[i].offsetx = Math.random()*200-100;
                bl[i].offsety = Math.random()*200-100;
            }
        }
        
//        //This function is responsible for animating the shake
//        private function shakeObject (e:Event):void {
//            
//            for (var i:Number = 0; i < bl.length; i ++) {
//                //bl[i].x += Math.random() * 5;
//                //bl[i].y += Math.random() * 5;
//                bl[i].scaleX = Math.random() * 1.5;
//                bl[i].scaleY = (bl[i] as MovieClip).scaleX;
//            }
//        }
    }
}

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