topical media & game development
[] readme course(s) preface I 1 2 II 3 4 III 5 6 7 IV 8 9 10 V 11 12 afterthought(s) appendix reference(s) example(s) resource(s) _

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animation-ch04-AnimatedFilters.ax

animation-ch04-AnimatedFilters.ax [swf] [flash] flex 


  package
  {
   import flash.display.Sprite;
   import flash.events.Event;
   import flash.filters.DropShadowFilter;
   
   public class @ax-animation-ch04-AnimatedFilters extends Sprite
   {
    private var filter:DropShadowFilter;
    private var sprite:Sprite;
    
    public function @ax-animation-ch04-AnimatedFilters()
    {
     init();
    }

init(s) 


    private function init():void
    {
     sprite = new Sprite();
     sprite.graphics.lineStyle(2);
     sprite.graphics.beginFill(0xffff00);
     sprite.graphics.drawRect(-50, -50, 100, 100);
     sprite.graphics.endFill();
     sprite.x = 200;
     sprite.y = 200;
     addChild(sprite);
     
     filter = new DropShadowFilter(0, 0, 0, 1, 20, 20, .3);
     
     addEventListener(Event.ENTER_FRAME, onEnterFrame);
    }

frane(s) 


    private function onEnterFrame(event:Event):void
    {
     var dx:Number = mouseX - sprite.x;
     var dy:Number = mouseY - sprite.y;
     
     filter.distance = -Math.sqrt(dx * dx + dy * dy) / 10;
     filter.angle = Math.atan2(dy, dx) * 180 / Math.PI;
     sprite.filters = [filter];
    }
   }
  }
[] readme course(s) preface I 1 2 II 3 4 III 5 6 7 IV 8 9 10 V 11 12 afterthought(s) appendix reference(s) example(s) resource(s) _

(C) Æliens 04/09/2009

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