void button_press(unsigned);
void axis_motion(unsigned, float, float);
void view_all();
- void set_block_color(const R2C2::Block &, const Msp::GL::Color &);
- void reset_block_color(const R2C2::Block &);
void sensor_event(unsigned, bool);
void block_reserved(const R2C2::Block &, const R2C2::Train *);
R2C2::Object *pick_object(const R2C2::Vector &);