[slidingtile] / sliding_tile_lib.h

#ifndef _SLIDING_TILE_LIB_H
#define _SLIDING_TILE_LIB_H

#include <istream>
#include <ostream>

const int BOARD_DIM = 4;
const int BOARD_SIZE = BOARD_DIM * BOARD_DIM;

struct InvertedBoard {
  signed char pos[BOARD_SIZE];
};

struct Board {
  signed char board[BOARD_SIZE];
  bool is_valid() const;
  signed char hole() const;
  InvertedBoard invert() const;
  int distance(const Board& o) const;
  int distance(const InvertedBoard& invo) const;
};
std::istream& operator>>(std::istream& is, Board& board);
std::ostream& operator<<(std::ostream& os, const Board& board);

extern signed char adjacent[BOARD_SIZE][5];

#endif /* _SLIDING_TILE_LIB_H */
Commit	Line	Data
82d6eed5 SW	1	#ifndef _SLIDING_TILE_LIB_H
	2	#define _SLIDING_TILE_LIB_H
	3
32688d85	4	#include <istream>
cada47bf	5	#include <ostream>
32688d85	6
e86755d7 SW	7	const int BOARD_DIM = 4;
e86755d7 SW	8	const int BOARD_SIZE = BOARD_DIM * BOARD_DIM;
32688d85	9
9c32325f SW	10	struct InvertedBoard {
	11	signed char pos[BOARD_SIZE];
	12	};
	13
19bd29f9 SW	14	struct Board {
19bd29f9 SW	15	signed char board[BOARD_SIZE];
cea272cf SW	16	bool is_valid() const;
cea272cf SW	17	signed char hole() const;
9c32325f SW	18	InvertedBoard invert() const;
	19	int distance(const Board& o) const;
	20	int distance(const InvertedBoard& invo) const;
19bd29f9	21	};
32688d85	22	std::istream& operator>>(std::istream& is, Board& board);
cada47bf	23	std::ostream& operator<<(std::ostream& os, const Board& board);
32688d85	24
82d6eed5 SW	25	extern signed char adjacent[BOARD_SIZE][5];
	26
	27	#endif /* _SLIDING_TILE_LIB_H */