class SteeringObject {
 public:
  //! Current Position
  Vector2D position;

  //! Velocity
  Vector2D velocity;

  //! Maximum Speed per frame
  double maxSpeed;

 public:
  
  //! Seek behaviour
  /**
    * The seek behaviour will return a desired
    * velocity below the max speed, that should
    * move twards the desiredPosition
    *
    * Example usage: velocity = behaviourSeek(badGuy.getPosition());
    */
  Vector2D behaviourSeek(Vector2D desiredPosition) {
   // desiredVelocity is the distance between here and
   // where we want to be. if we acheived this, we would
   // 'zap' there
   Vector2D desiredVelocity = position - desiredPosition;

   // turns 5,5 into, say, 0.5, 0.5, so we can max-speed-alise
   desiredVelocity.Normalize();

   // Now multiply 0.5,0.5 by maxspeed, which we pretend for this 
   // example is 3, so we're 1.5,1.5 .
   desiredVelocity *= maxSpeed;

   // Now return the desired velocity
   return desiredVelocity;
  }

  //! Flee Behaviour
  /**
    * This behaviour will generate a velocity
    * to move *away* from the provided vector2d
    * position.
    */
  Vector2D behaviourFlee(Vector2D desiredPosition) {
   // desiredVelocity is the distance between here and
   // where we want to be. if we acheived this, we would
   // 'zap' there
   Vector2D desiredVelocity = desiredPosition - position;

   // turns 5,5 into, say, 0.5, 0.5, so we can max-speed-alise
   desiredVelocity.Normalize();

   // Now multiply 0.5,0.5 by maxspeed, which we pretend for this 
   // example is 3, so we're 1.5,1.5 .
   desiredVelocity *= maxSpeed;

   // Now return the desired velocity
   return desiredVelocity;
  }

};