livingThing.h

//Declaration of the living things class

#ifndef LIVINGTHING_H
#define LIVINGTHING_H
class livingThing {
public:
  virtual void grow()=0;
  virtual void die()=0;
  virtual void print()=0;

  livingThing() { alive=true; }
  virtual bool isAlive() { return alive; }
protected:
  bool alive;
};
#endif