terminal-chess: src/game.h@970748b9a73b

fixed crucial bug where both players could move at the same time + added pawn rules (TODO: en passant)

     1 /*

     2  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.

     3  *

     4  * Copyright 2014 Mike Becker. All rights reserved.

     5  *

     6  * Redistribution and use in source and binary forms, with or without

     7  * modification, are permitted provided that the following conditions are met:

     8  *

     9  *   1. Redistributions of source code must retain the above copyright

    10  *      notice, this list of conditions and the following disclaimer.

    11  *

    12  *   2. Redistributions in binary form must reproduce the above copyright

    13  *      notice, this list of conditions and the following disclaimer in the

    14  *      documentation and/or other materials provided with the distribution.

    15  *

    16  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"

    17  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

    18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

    19  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE

    20  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR

    21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF

    22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS

    23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN

    24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

    25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

    26  * POSSIBILITY OF SUCH DAMAGE.

    27  *

    28  */

    30 #ifndef GAME_H

    31 #define	GAME_H

    33 #include "terminal-chess.h"

    34 #include <stdint.h>

    36 #ifdef	__cplusplus

    37 extern "C" {

    38 #endif

    40 #define PIECE_MASK       0x0F

    41 #define COLOR_MASK       0x30

    42 #define ENPASSANT_THREAT 0x40

    44 #define WHITE 0x10

    45 #define BLACK 0x20

    47 #define PAWN   0x01

    48 #define ROOK   0x02

    49 #define KNIGHT 0x03

    50 #define BISHOP 0x04

    51 #define QUEEN  0x05

    52 #define KING   0x06

    54 #define WPAWN   (WHITE|PAWN)

    55 #define WROOK   (WHITE|ROOK)

    56 #define WKNIGHT (WHITE|KNIGHT)

    57 #define WBISHOP (WHITE|BISHOP)

    58 #define WQUEEN  (WHITE|QUEEN)

    59 #define WKING   (WHITE|KING)

    60 #define BPAWN   (BLACK|PAWN)

    61 #define BROOK   (BLACK|ROOK)

    62 #define BKNIGHT (BLACK|KNIGHT)

    63 #define BBISHOP (BLACK|BISHOP)

    64 #define BQUEEN  (BLACK|QUEEN)

    65 #define BKING   (BLACK|KING)

    67 typedef uint8_t Board[8][8];

    69 typedef struct {

    70     uint8_t piece;

    71     uint8_t fromfile;

    72     uint8_t fromrow;

    73     uint8_t tofile;

    74     uint8_t torow;

    75     _Bool check;

    76     _Bool checkmate;

    77     _Bool capture;

    78 } Move;

    80 #define POS_UNSPECIFIED UINT8_MAX

    81 #define mdst(b,m) b[m->torow][m->tofile]

    82 #define msrc(b,m) b[m->fromrow][m->fromfile]

    84 #define isidx(idx) ((uint8_t)idx < 8)

    86 #define isfile(file) (file >= 'a' && file <= 'h')

    87 #define isrow(row) (row >= '1' && row <= '8')

    89 #define rowidx(row) (row-'1')

    90 #define fileidx(file) (file-'a')

    92 #define chkidx(move) (isidx(move->fromfile) && isidx(move->fromrow) && \

    93         isidx(move->tofile) && isidx(move->torow))

    95 /* secure versions - use, if index is not checked with isidx() */

    96 #define fileidx_s(c) (isfile(c)?fileidx(c):POS_UNSPECIFIED)

    97 #define rowidx_s(c) (isrow(c)?rowidx(c):POS_UNSPECIFIED)

    99 void game_start(Settings *settings, int opponent);

   101 #ifdef	__cplusplus

   102 }

   103 #endif

   105 #endif	/* GAME_H */

Mercurial > hg > terminal-chess / file revision