puzzle_position.h

// Структура, компактно описывающая расположение фишек на поле и предоставляющая
// удобные методы для работы с такой записью

#ifndef PUZZLEPOS_H
#define PUZZLEPOS_H

#include <vector>

struct puzzle_position {
 public:
  explicit puzzle_position(unsigned long long position, unsigned char null)
      : table_pos(position), null_pos(null) {}
  puzzle_position(const puzzle_position& another)
      : table_pos(another.getData()), null_pos(another.getNull()) {}
  ~puzzle_position() {}
  void getNext(std::vector<puzzle_position>& nextPositions) const;
  unsigned long long setTo(int place, unsigned char value) const;
  unsigned char getFrom(int place) const;
  unsigned long long Left() const;
  unsigned long long Right() const;
  unsigned long long Up() const;
  unsigned long long Down() const;
  unsigned long long getData() const { return table_pos; }
  unsigned char getNull() const { return null_pos; }
  int probDistance() const;
  int manDist(unsigned char value, int pos) const;

 private:
  unsigned long long table_pos;
  unsigned char null_pos;
  static const int gameSIZE = 16;
};

#endif