void ai_event(R2C2::TrainAI &, const R2C2::TrainAI::Message &);
void update_speed_display(float);
void ui_speed_changed(double);
void update_forward(bool);
void ui_forward_toggled(bool);
void expand_clicked();
void ai_event(R2C2::TrainAI &, const R2C2::TrainAI::Message &);
void update_speed_display(float);
void ui_speed_changed(double);
void update_forward(bool);
void ui_forward_toggled(bool);
void expand_clicked();