// lane.h      for traffic simulation

#ifndef LANE_H_
#define LANE_H_

#include "simulation.h"
#include "vehicle.h"

class lane
{
  public:
    lane(void): id(0), position_x(0.0), position_y(0.0),
	   speed_limit(0.0), moving(north), length(0.0),
	   signal(none), vehicle_list(0)
	   {};
    lane(float Aposition_x,
	 float Aposition_y,
	 float Aspeed_limit,
	 direction Amoving,
	 float Alength);
    void operate(void);
    void vehicle_start(float Alength,
		       float Aweight,
		       float Aaccel,
		       float Adecell);
    bool vehicle_exiting( void );
    vehicle * vehicle_remove( void );
    void vehicle_add( vehicle *a_vehicle );
    void lane_end( float & x_lane_end, float & y_lane_end);
    void set_signal(signal_state Asignal);
    void draw(void);
  private:
      int   id;
      float position_x;
      float position_y;
      float speed_limit;
      direction moving;
      float length;
      signal_state signal;
      vehicle *vehicle_list;
}; // end lane.h

#endif  // LANE_H_