text: #include "surrounding_vehicle.hpp"
  
  SurroundingVehicle::SurroundingVehicle(){}
  SurroundingVehicle::~SurroundingVehicle(){}
  
  void SurroundingVehicle::set_parameter(int id, double x, double y,
                                         double vx, double vy, double d, double s) {
    this->id = id;
    this->x = x;
    this->y = y;
    this->vx = vx;
    this->vy = vy;
    this->speed = sqrt(vx*vx + vy*vy);
    this->d = d;
    this->s = s;
  }
  
  