Dancing Circles

forked:3
favorite:2
lines:82
license : MIT License
modified : 2009-07-21 12:49:30

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package {
    import flash.display.MovieClip;
    import flash.display.BitmapData;
    import flash.display.Bitmap;
    
    import gs.TweenMax;
    import gs.easing.*;
    
    import flash.filters.GlowFilter;
    import flash.filters.BlurFilter;
    
    import flash.events.MouseEvent;
    import flash.events.Event;
    
    public class DancingCircles extends MovieClip {
        
        private var mcLine:MovieClip;
        private var mcCircle1:MovieClip;
        private var mcCircle2:MovieClip;
        private var mcCircle3:MovieClip;
        private var bd:BitmapData;
        private var bdBM:Bitmap;
        
        public function DancingCircles() {
            init();
        }
        
        private function init():void {            
            mcCircle1                           = createCircle();
            mcCircle2                           = createCircle();
            mcCircle3                           = createCircle();
            mcLine                              = new MovieClip();
        
            var glow:GlowFilter	        	= new GlowFilter();
            var blur:BlurFilter			= new BlurFilter(20,20,2)
            var filtersArray:Array 		= new Array(blur);
            bd            			= new BitmapData(stage.stageWidth,stage.stageHeight,true,0);
            bdBM             			= new Bitmap(bd);
            bdBM.filters  			= filtersArray;
            
            mcCircle1.filters                   = filtersArray;
            mcCircle2.filters                   = filtersArray;
            mcCircle3.filters                   = filtersArray;
            mcLine.filters                      = filtersArray;

this.addChild(mcLine);
            this.addChild(mcCircle1);
            this.addChild(mcCircle2);
            this.addChild(mcCircle3);
            this.addChild(bdBM)
            this.setChildIndex(bdBM,0)
                        
            repositionMC(mcCircle1);
            repositionMC(mcCircle2);
            repositionMC(mcCircle3);            
        }
        
        // -----------------------------------------------------------------------------------------------------------
        
        private function createCircle():MovieClip {
            var circle:MovieClip                = new MovieClip();
            
            circle.graphics.beginFill(0xFFFFFF*Math.random(), 1);
            circle.graphics.drawCircle( 0, 0, 10)
            circle.addEventListener(MouseEvent.MOUSE_DOWN, mcClick);
            circle.addEventListener(MouseEvent.MOUSE_UP, mcRelease);
			circle.blendMode = "overlay"
            
            return circle;
        }
        private function updateLine(mc:MovieClip):void {
            bd.draw(stage)
            mc.graphics.clear();
			mc.graphics.lineStyle(1,0xFFFFFF,1);
			mc.graphics.moveTo(mcCircle1.x,mcCircle1.y)
			mc.graphics.lineTo(mcCircle2.x-mc.x,mcCircle2.y-mc.y)
			mc.graphics.lineTo(mcCircle3.x-mc.x,mcCircle3.y-mc.y)
    	    mc.graphics.lineTo(mcCircle1.x,mcCircle1.y);
        }
        private function repositionMC(mc:MovieClip):void {
	    var posX:Number		        = Math.random()*stage.stageWidth;
	    var posY:Number			= Math.random()*stage.stageHeight;	
	    TweenMax.to(mc, 1, {x:posX,y:posY,ease:Sine.easeInOut, onUpdate:mcUpdateCallback, onComplete:mcCompleteCallback,onCompleteParams:[mc]})
        }        
        private function mcCompleteCallback(mc:MovieClip):void {
            repositionMC(mc);
        }
        private function mcUpdateCallback():void {
            updateLine(mcLine);            
        }
        
        // -----------------------------------------------------------------------------------------------------------
        
        private function mcClick(e:MouseEvent):void {
		    e.target.startDrag();
        }
        private function mcRelease(e:MouseEvent):void {
		    e.target.stopDrag();
        }

}
}

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