[SWF(width='700',height='500',backgroundColor='0xCCBBBB',frameRate='30')]
          public class @ax-flex-fisix-6 extends MovieClip{
                  
                  private var myEngine:FisixEngine
                  private var txtFPS:TextField
                  private var mouseDown:Boolean
                  
                  private var driveSpeed:Number
                  private var car:Buggy
  
                  public function @ax-flex-fisix-6(){
                          
                          driveSpeed=0
                                  
                          //first, create an instance of the fisixengine object
                          myEngine = new FisixEngine()
                          
                          //set the gravity to pull down at a rate of 1 pixel per second
                          myEngine.setGravity(0,1)
                          
                          myEngine.setReactionMode(ReactionModes.PHYSICAL)
                          
                          myEngine.boundsCollisions = true
                          
                          //turn on primitive rendering
                          myEngine.setRender(true)
                          //tell the engine where to render to
                          myEngine.setRenderGraphics(graphics)
  
                          addEventListener(Event.ENTER_FRAME,onEnterFrame)
                          stage.addEventListener(MouseEvent.MOUSE_DOWN,onMouseDown)
                          stage.addEventListener(MouseEvent.MOUSE_UP,onMouseUp)
                          stage.addEventListener(KeyboardEvent.KEY_DOWN,onKeyDown)
                          stage.addEventListener(KeyboardEvent.KEY_UP,onKeyUp)
                          
                          txtFPS = new TextField()
                          addChild(txtFPS)
                          
                          var terrain:FractalTerrain = new FractalTerrain(new Vector(0,300),new Vector(700,300),-30,2,2,0)
                          terrain.setFriction(1)
                          myEngine.addObject(terrain)
                          
                          car = new Buggy(200,200,this)
                          myEngine.addObject(car)
                  }
                  private function onEnterFrame(e:Event):void{
                          car.drive(driveSpeed)
                          myEngine.mainLoop(1)
                          txtFPS.text = int(myEngine.getRealFPS()).toString()
                  }
                  private function onMouseDown(e:MouseEvent):void{
                          mouseDown=true
                  }
                  private function onMouseUp(e:MouseEvent):void{
                          mouseDown=false
                  }
                  private function onKeyDown(e:KeyboardEvent){
                          if(e.keyCode==Keyboard.RIGHT) driveSpeed=3
                          if(e.keyCode==Keyboard.LEFT) driveSpeed=-3
                  }
                  private function onKeyUp(e:KeyboardEvent){
                          driveSpeed=0
                  }
          }
  }