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Commit | Line | Data |
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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; |
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 { |
15 | signed char board[BOARD_SIZE]; | |
cea272cf SW |
16 | bool is_valid() const; |
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 */ |