-uint8_t get_column_count(void);
-uint8_t get_column_count_right(void);
-uint8_t get_column_count_left(void);
-uint8_t get_lintel_count(void);
-uint8_t get_mechboard_mode(void);
-uint8_t pump_left1_is_full(void);
-uint8_t pump_left2_is_full(void);
-uint8_t pump_right1_is_full(void);
-uint8_t pump_right2_is_full(void);
-uint8_t get_scanner_status(void);
-uint8_t wait_scan_done(uint16_t timeout);
-uint8_t opponent_is_behind(void);
+int16_t distance_from_opponent(int16_t x, int16_t y);
+
+uint8_t get_ball_count(void);
+uint8_t get_cob_count(void);