flash on 2011-3-24

/**
 * Copyright yama3 ( http://wonderfl.net/user/yama3 )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/z45w
 */

package {
    import flash.display.Sprite;
    import flash.events.MouseEvent;
    import flash.filters.DropShadowFilter;
    import caurina.transitions.Tweener;
    import caurina.transitions.properties.FilterShortcuts;
    
    [SWF(width=465, height=465, frameRate=30, backgroundColor=0xffffff)]
    
    public class FlashTest extends Sprite {
        public static const STD_POINT:Number = 150;
        public static const STD_DISTANCE:Number = 32;
        public static const STD_BLUR:Number = 32;
        
        private var light:Sprite;
        private var ball:Sprite;
        
        public function FlashTest() {
            FilterShortcuts.init();
            
            light = new Sprite();
            light.x = stage.stageWidth / 2;
            light.y = stage.stageHeight / 2;
            
            light.graphics.beginFill(0xff0000);
            light.graphics.drawCircle(0, 0, 20);
            light.graphics.endFill();
            
            addChild(light);
            
            ball = new Sprite();
            ball.x = light.x;
            ball.y = light.y;
            ball.filters = [new DropShadowFilter(0,0,0,.5,0,0)];
            
            ball.graphics.beginFill(0);
            ball.graphics.drawCircle(0, 0, 20);
            ball.graphics.endFill();
            
            addChild(ball);
            
            stage.addEventListener(MouseEvent.CLICK, clickHandler);                        
        }
        
        private function clickHandler(evt:MouseEvent):void
        {
            var dx:Number = mouseX - light.x;
            var dy:Number = mouseY - light.y;
            var dp:Number = Math.sqrt(dx*dx + dy*dy)/STD_POINT;
            var degrees:Number = Math.atan2(dy, dx) / Math.PI * 180;
            
            Tweener.addTween(ball, {
               x:mouseX,
               y:mouseY,
               _DropShadow_angle:degrees,
               _DropShadow_distance:dp*STD_DISTANCE,
               _DropShadow_blurX:dp*STD_BLUR,
               _DropShadow_blurY:dp*STD_BLUR,
               time: 1,
               transition: "easeInOutCubic" 
             })
        }

    }
}