81 lines
2.7 KiB
C
81 lines
2.7 KiB
C
/* board.h - board definitions.
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*
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* Copyright (C) 2021 Bruno Raoult ("br")
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* Licensed under the GNU General Public License v3.0 or later.
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* Some rights reserved. See COPYING.
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*
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* You should have received a copy of the GNU General Public License along with this
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* program. If not, see <https://www.gnu.org/licenses/gpl-3.0-standalone.html>.
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*
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* SPDX-License-Identifier: GPL-3.0-or-later <https://spdx.org/licenses/GPL-3.0-or-later.html>
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*
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*/
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#ifndef BOARD_H
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#define BOARD_H
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#include <stdint.h>
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#include "chessdefs.h"
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#include "piece.h"
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typedef struct board_s {
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piece_t piece;
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piece_list_t *s_piece;
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//struct list_head *s_piece;
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} board_t; /* 0x88 board */
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#define BOARDSIZE (8*8*2)
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/* definitions for 0x88 representation
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*/
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#define SQ88(f, r) (((r) << 4) | (f)) /* from rank,file to sq88 */
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#define F88(s) ((s) & 0x0f) /* from sq88 to file */
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#define R88(s) ((s) >> 4) /* from sq88 to rank */
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#define SETF88(s, r) ((s) &= 0xf0, (s) |= (r))
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#define SETR88(s, f) ((s) &= 0x0f, (s) |= (f)<<4)
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#define SQ88_NOK(s) ((s) & 0x88) /* invalid square */
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#define SQ88_OK(s) (!SQ88_NOK(s))
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/* definitions for bitboard representation
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*/
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#define BB(f, r) (1ULL << (8 * (r) + (f))) /* from rank,file to bitboard */
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#define SQ88_2_BB(s) (BB(F88(s), R88(s))) /* from sq88 to bitboard */
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#define FILEBB(b) ((b) % 8) /* from sq88 to file */
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#define RANKBB(b) ((b) / 8) /* from sq88 to rank */
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#define SQ88_NOK(s) ((s) & 0x88) /* invalid square */
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#define SQ88_OK(s) (!SQ88_NOK(s))
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/* piece human notation
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*/
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#define CHAR_EMPTY ' '
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#define CHAR_PAWN 'P'
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#define CHAR_KNIGHT 'N'
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#define CHAR_BISHOP 'B'
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#define CHAR_ROOK 'R'
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#define CHAR_QUEEN 'Q'
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#define CHAR_KING 'K'
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/* from human to machine
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*/
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#define C2FILE(c) (tolower(c) - 'a')
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#define C2RANK(c) (tolower(c) - '1')
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/* from machine to human
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*/
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#define FILE2C(f) ((f) + 'a')
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#define RANK2C(r) ((r) + '1')
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enum x88_square {
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x88_A1=0x00, x88_B1, x88_C1, x88_D1, x88_E1, x88_F1, x88_G1, x88_H1,
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x88_A2=0x10, x88_B2, x88_C2, x88_D2, x88_E2, x88_F2, x88_G2, x88_H2,
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x88_A3=0x20, x88_B3, x88_C3, x88_D3, x88_E3, x88_F3, x88_G3, x88_H3,
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x88_A4=0x30, x88_B4, x88_C4, x88_D4, x88_E4, x88_F4, x88_G4, x88_H4,
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x88_A5=0x40, x88_B5, x88_C5, x88_D5, x88_E5, x88_F5, x88_G5, x88_H5,
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x88_A6=0x50, x88_B6, x88_C6, x88_D6, x88_E6, x88_F6, x88_G6, x88_H6,
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x88_A7=0x60, x88_B7, x88_C7, x88_D7, x88_E7, x88_F7, x88_G7, x88_H7,
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x88_A8=0x70, x88_B8, x88_C8, x88_D8, x88_E8, x88_F8, x88_G8, x88_H8,
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};
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#endif /* BOARD_H */
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