void event2f(const std::string &, float, float);
void event3f(const std::string &, float, float, float);
void event4f(const std::string &, float, float, float, float);
void event2f(const std::string &, float, float);
void event3f(const std::string &, float, float, float);
void event4f(const std::string &, float, float, float, float);