void set_event_type(unsigned row, const std::string &type);
void set_event_formation(unsigned row, int formation_id);
uint64_t get_time(unsigned row) { return events[row].t; }
void set_event_type(unsigned row, const std::string &type);
void set_event_formation(unsigned row, int formation_id);
uint64_t get_time(unsigned row) { return events[row].t; }