     @bind('GameLoop', @_choreographyTick)
 
     @_ctypes =
-      #bezier: @_executeBezier
       delay: @_executeDelay
       linear: @_executeLinear
       viewport: @_executeMoveIntoViewport
       viewportBezier: @_executeViewportBezier
-      tween: @_executeTween
 
   remove: ->
     return unless @_currentPart?

        currentProperties[k] = @[k]
      @_currentPart.currentProperties = currentProperties

  _executeLinear: (v) ->
    @x = @_currentPart.x + (v * (@_currentPart.dx ? 0))
    @y = @_currentPart.y + (v * (@_currentPart.dy ? 0))

  _executeDelay: (v) ->


      motionY = (diffY * v)
      pmotionY = (diffY * prevv)

      @y += motionY - pmotionY

  _executeViewportBezier: (v, prevv) ->
    bp = new Game.BezierPath
