#ifndef LOGIC_HH
#define LOGIC_HH
#include "vector.hh"
class BinaryExpr;
class SensorExpr;
class Vehicle;
class View;

class Logic {
  
 public:
  
    Logic()					{ }
    virtual ~Logic()				{ }
  
  virtual Logic *clone()			{ return this; }
  virtual void print();

  virtual int lvalue(Vehicle *);
  virtual double calculate(Vector<double> &, Vehicle *);
  
  virtual void draw(Vehicle *, int, View *);
  
  static Logic *null_logic();

  virtual BinaryExpr *cast_binary_expr()	{ return 0; }
  virtual SensorExpr *cast_sensor_expr()	{ return 0; }
  
};

class LinearLogic: public Logic {
  
  int _sensor;
  double _y_intercept;
  double _slope;
  
 public:
  
  LinearLogic(int, double y_intercept, double slope);
  
  double calculate(Vector<double> &, Vehicle *);
  
  void draw(Vehicle *, int, View *);
  
};

#endif