- void hide_puck (int which);
- void show_puck (int which);
- int add_target (float x, float y);
- int add_puck (const char* text, float x, float y);
- void hide_target (int);
- void show_target (int);
- void remove_target (int);
- void drop_targets ();
- void drop_pucks ();
- void move_target (int, float x, float y);
- void move_puck (int, float x, float y);
+ int add_speaker (const PBD::AngularVector&);
+ int add_signal (const char* text, const PBD::AngularVector&);
+ void move_signal (int which, const PBD::AngularVector&);