ShortWave

<?xml version="1.0" encoding="utf-8"?>
<mx:WindowedApplication xmlns:mx="http://www.adobe.com/2006/mxml" layout="vertical">
    <mx:Script>
        <![CDATA[

            import mx.controls.Alert;
            // public var xBitmap:Bitmap;
            private var bitmapData:BitmapData;
            private var searchColorA:uint = 0xFFFFFF;
            private var searchColorB:uint = 0x000000;

            private function init():void {
                var camera:Camera = Camera.getCamera();
                camera.setMode( 640, 480, 25, false );

                if (camera) {
                    video.attachCamera(camera);
                } else {
                    Alert.show("You don't seem to have a camera.");
                }

                this.addEventListener(Event.ENTER_FRAME, handleActivity );
                // camera.addEventListener(ActivityEvent.ACTIVITY, handleActivity );
                var g:Graphics = red.graphics;
                g.lineStyle(1, 0xFF0000, 0.75 );
                g.beginFill(0xFF0000, 0.75 );
                g.drawCircle(0, 0, 10);
                g.endFill();

                g = green.graphics;
                g.lineStyle(1, 0x00FF00, 0.75);
                g.beginFill(0x00FF00, 0.75);
                g.drawCircle(0, 0, 10);
                g.endFill();
            }

            private function askPermission( ) : void {
                // Security.showSettings( SecurityPanel.PRIVACY );
            }

            private function handleActivity( event:Event ) : void {
                if (bitmapData == null) {
                    bitmapData = new BitmapData( video.width, video.height );
                    // bData.draw( video );
                    // xBitmap = new Bitmap( bData );
                    // target.source = xBitmap;
                }

                bitmapData.draw( video );

                // now that we have some nice data in the bitmapData property, let's proceed

                var matchedA_x:Array = new Array();
                var matchedA_y:Array = new Array();

                var matchedB_x:Array = new Array();
                var matchedB_y:Array = new Array();



                for (var y:int = 0; y < bitmapData.height; y++) {
                    for (var x:int = 0; x < bitmapData.width; x++) {
                        if (match(searchColorA, bitmapData.getPixel(x, y) )) {
                            matchedA_x.push( x );
                            matchedA_y.push( y);
                        } else if (match( searchColorB, bitmapData.getPixel( x, y ))) {
                            matchedB_x.push( x );
                            matchedB_y.push( y );
                        }

                    }
                }

                var a_avg_x:int = 0;
                var a_avg_y:int = 0;
                var b_avg_x:int = 0;
                var b_avg_y:int = 0;
                var i:int;
                if (matchedA_x.length > 0) {

                    for (i = 0; i < matchedA_x.length; i++ ) {
                        a_avg_x = a_avg_x + matchedA_x[i];
                        a_avg_y = a_avg_y + matchedA_y[i];
                    }
                    a_avg_x = a_avg_x / matchedA_x.length;
                    a_avg_y = a_avg_y / matchedA_y.length;

                 }
                 if (matchedB_x.length > 0) {
                    for (i = 0; i < matchedB_x.length; i++) {
                        b_avg_x = b_avg_x + matchedB_x[i];
                        b_avg_y = b_avg_y + matchedB_y[i];
                    }
                    b_avg_x = b_avg_x / matchedB_x.length;
                    b_avg_y = b_avg_y / matchedB_x.length;
                 }

                 // move the canvases
                 red.x = a_avg_x;
                 red.y = a_avg_y;
                 green.x = b_avg_x;
                 green.y = b_avg_y;

            }
            private function setColor( event:MouseEvent ) : void {
                var x:int = event.localX;
                var y:int = event.localY;
                searchColorA = bitmapData.getPixel( x, y );
            }

            private function setOtherColor( event:MouseEvent ) : void {
                var x:int = event.localX;
                var y:int = event.localY;
                searchColorB = bitmapData.getPixel( x, y );
            }


            private function match( colorA:uint, colorB:uint ) : Boolean {
                var limit:int = 20;
                var sr:int = colorA >> 16 & 0xFF;
                var sg:int = colorA >> 8 & 0xFF;
                var sb:int = colorA & 0xFF;

                var cr:int = colorB >> 16 & 0xFF;
                var cg:int = colorB >> 8 & 0xFF;
                var cb:int = colorB & 0xFF;
                return cr > sr - limit && cr < sr + limit && cg > sg - limit && cg < sg + limit && cb > sb - limit && cb < sb + limit;
            }

        ]]>
    </mx:Script>
    <mx:Canvas>
        <mx:VideoDisplay id="video" height="480" width="640" creationComplete="askPermission()" rightClick="setOtherColor( event )" click="setColor( event )"/>
        <!-- <mx:Image id="target" height="640" width="480"/> -->
        <mx:Canvas id="red"/>
        <mx:Canvas id="green"/>
    </mx:Canvas>

    <mx:Button id="button"
            label="Attach Camera"
            click="init();" />
</mx:WindowedApplication>