HeroController({CreateRectTween createRectTween })

Creates a hero controller with the given RectTween constructor if any.

The createRectTween argument is optional. By default, a linear RectTween is used.

Source 

HeroController({ CreateRectTween createRectTween }) {
  _party = new _HeroParty(
    onQuestFinished: _handleQuestFinished,
    createRectTween: createRectTween
  );
}