board.h

超强国际象棋引擎

// board.h

#ifndef BOARD_H

#define BOARD_H

// includes

#include "piece.h"
#include "square.h"

// macros

#define KING_POS(board,color) ((board)->piece[color][0])

// types

struct board_t
    {
    int piece_material[2];

    int square[256];
    int pos[256];

    sq_t piece[2][32]; // only 17 are needed
    int piece_size[2];

    sq_t pawn[2][16];  // only 9 are needed
    int pawn_size[2];

    int piece_nb;
    int number[16]; // only 12 are needed

    int pawn_file[2][16];

    int turn;
    int flags;
    int ep_square;
    int ply_nb;
    int sp; // TODO: MOVE ME?

    int cap_sq;
    int moving_piece;

    int opening;
    int endgame;

    uint64 key;
    uint64 pawn_key;
    uint64 material_key;

    uint64 stack[4096];
    };

// functions

extern bool board_is_ok(const board_t *board);

extern void board_clear(board_t *board);
extern void board_copy(board_t *dst, const board_t *src);

extern void board_init_list(board_t *board);

extern bool board_is_legal(const board_t *board);
extern bool board_is_check(const board_t *board);
extern bool board_is_mate(const board_t *board);
extern bool board_is_stalemate(board_t *board);

extern bool board_is_repetition(const board_t *board);

extern int board_material(const board_t *board);
extern int board_opening(const board_t *board);
extern int board_endgame(const board_t *board);

#endif // !defined BOARD_H

// end of board.h