anchor.diff:    /// [appName] is used to refernce assets and has to be the name of the library
     /// which contains the assets. Usually the game itself.
     GameBase.noAssets(String appName, String canvasSelector,
  -      {bool webgl = false, bool depthTest = true, bool blending = true})
  +      {bool webgl = false,
  +      bool depthTest = true,
  +      bool blending = true,
  +      bool useMaxDelta = true})
         : this(appName, canvasSelector,
               spriteSheetName: null,
               bodyDefsName: null,
               musicName: null,
               webgl: webgl,
  +            useMaxDelta: useMaxDelta,
               depthTest: depthTest,
               blending: blending);
   
  
positive.code:   final String bodyDefsName;
    final String musicName;
    final bool webgl;
    World world;
    Map<String, List<Polygon>> bodyDefs;
    SpriteSheet spriteSheet;
  
negative.code:       this.audioContext,
        this.webgl = false,
        bool depthTest = true,
        bool blending = true,
        this.useMaxDelta = true})
        : canvas = querySelector(canvasSelector),
          helper = GameHelper(appName, audioContext),
          ctx = webgl
  