package {
          import flash.display.Shader;
          import flash.display.Sprite;
          import flash.display.StageAlign;
          import flash.display.StageScaleMode;
          import flash.events.Event;
  
          public class @ax-lib-flex-animation-code-09-ShaderFillAnim extends Sprite
          {
                  [Embed (source="Checkerboard.pbj", 
                          mimeType="application/octet-stream")]
                  private var ShaderClass:Class;
                  
                  private var shader:Shader;
                  private var xAngle:Number = 0;
                  private var yAngle:Number = 0;
                  private var xSpeed:Number = .09;
                  private var ySpeed:Number = .07;
                  
                  public function @ax-lib-flex-animation-code-09-ShaderFillAnim()
                  {
                          stage.align = StageAlign.TOP_LEFT;
                          stage.scaleMode = StageScaleMode.NO_SCALE;
                          
                          shader = new Shader(new ShaderClass());
                          
                          addEventListener(Event.ENTER_FRAME, onEnterFrame);
                  }
                  
                  private function onEnterFrame(event:Event):void
                  {
                          var xres:Number = Math.sin(xAngle += xSpeed) * 50 + 55;
                          var yres:Number = Math.sin(yAngle += ySpeed) * 50 + 55; 
                          
                          shader.data.xres.value = [xres];
                          shader.data.yres.value = [yres];
                          graphics.clear(); 
                          graphics.beginShaderFill(shader);
                          graphics.drawRect(20, 20, 400, 400);
                          graphics.endFill();
                  }
          }
  }