- void update(Mf::Engine& engine, Mf::Scalar t, Mf::Scalar dt);
- void draw(Mf::Engine& engine, Mf::Scalar alpha) const;
- bool handleEvent(Mf::Engine& engine, const Mf::Event& event);
+ void update(Mf::Scalar t, Mf::Scalar dt);
+ void draw(Mf::Scalar alpha) const;
+ bool handleEvent(const Mf::Event& event);