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animation-ch14-TwoSegmentDrag.ax

animation-ch14-TwoSegmentDrag.ax [swf] [flash] flex


  package {
          import flash.display.Sprite;
          import flash.display.StageAlign;
          import flash.display.StageScaleMode;
          import flash.events.Event;
  
          public class @ax-animation-ch14-TwoSegmentDrag extends Sprite
          {
                  private var segment0:animation_ch14_Segment;
                  private var segment1:animation_ch14_Segment;
                  
                  public function @ax-animation-ch14-TwoSegmentDrag()
                  {
                          init();
                  }
                  
                  private function init():void
                  {
                          stage.align = StageAlign.TOP_LEFT;
                          stage.scaleMode = StageScaleMode.NO_SCALE;
                          segment0 = new animation_ch14_Segment(100, 20);
                          addChild(segment0);
                          
                          segment1 = new animation_ch14_Segment(100, 20);
                          addChild(segment1);
                          
                          addEventListener(Event.ENTER_FRAME, onEnterFrame);
                  }
                  
                  private function onEnterFrame(event:Event):void
                  {
                          drag(segment0, mouseX, mouseY);
                          drag(segment1, segment0.x, segment0.y);
                  }
                  
                  private function drag(segment:animation_ch14_Segment, xpos:Number, ypos:Number):void
                  {
                          var dx:Number = xpos - segment.x;
                          var dy:Number = ypos - segment.y;
                          var angle:Number = Math.atan2(dy, dx);
                          segment.rotation = angle * 180 / Math.PI;
                          
                          var w:Number = segment.getPin().x - segment.x;
                          var h:Number = segment.getPin().y - segment.y;
                          segment.x = xpos - w;
                          segment.y = ypos - h;
                  }
          }
  }
  


(C) Æliens 04/09/2009

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