Bruno Raoult
d5906b1fb9
- bitboard.c: make attacks for knight/king - square macros (BB, BBfile, BBrank) renamed sq_make, sq_file, sq_rank, moved to board.h (and become temporarily inline funcs) - different macros/defs moved to "correct place" (bitboard/board/piece): board.[ch]: everything related to board/square bitboard.[ch]: everything related to bitboards piece.[ch]: everything related to pieces
102 lines
2.8 KiB
C
102 lines
2.8 KiB
C
/* position.h - position management definitions.
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*
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* Copyright (C) 2021-2024 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 POSITION_H
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#define POSITION_H
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#include <stdint.h>
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#include "brlib.h"
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#include "bitops.h"
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#include "bitboard.h"
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#include "chessdefs.h"
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#include "piece.h"
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typedef struct {
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u64 node_count; /* evaluated nodes */
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int turn; /* WHITE or BLACK */
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u16 clock_50;
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u16 plycount; /* plies so far, start is 0 */
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square_t en_passant;
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castle_rights_t castle;
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//eval_t eval;
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//int check[2];
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//int eval_simple_phase;
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//eval_t eval_simple;
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//move_t *bestmove;
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//bool moves_generated;
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//bool moves_counted;
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bitboard_t bb[2][PIECE_TYPE_MAX]; /* bb[0][PAWN], bb[1][ALL_PIECES] */
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bitboard_t controlled[2];
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//u16 mobility[2];
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//struct list_head pieces[2]; /* pieces list, King is first */
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//struct list_head moves[2];
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piece_t board[BOARDSIZE];
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} pos_t;
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/**
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* pos_set_sq - unconditionally set a piece on a square
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* @pos: position
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* @square: square_t to set
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* @piece: piece_t to add
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*
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* Both position board and bitboards are modified.
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*/
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static inline void pos_set_sq(pos_t *pos, square_t square, piece_t piece)
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{
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color_t color = COLOR(piece);
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piece_type_t type = PIECE(piece);
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pos->board[square] = piece;
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pos->bb[color][type] |= 1 << square;
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pos->bb[color][ALL_PIECES] |= 1 << square;
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}
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/**
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* pos_clr_sq - unconditionally remove a piece from square
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* @pos: position
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* @square: square_t to clear
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*
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* Both position board and bitboards are modified.
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*/
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static inline void pos_clr_sq(pos_t *pos, square_t square)
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{
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piece_t piece = pos->board[square];
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piece_type_t type = PIECE(piece);
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color_t color = COLOR(piece);
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pos->board[square] = EMPTY;
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pos->bb[color][type] &= ~(1 << square);
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pos->bb[color][ALL_PIECES] &= ~(1 << square);
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}
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//void bitboard_print(bitboard_t bb, char *title);
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//void bitboard_print2(bitboard_t bb1, bitboard_t bb2, char *title);
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extern pos_t *pos_new();
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extern pos_t *pos_dup(pos_t *pos);
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extern void pos_del(pos_t *pos);
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extern pos_t *pos_clear(pos_t *pos);
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extern void pos_print(pos_t *pos);
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extern void pos_pieces_print(pos_t *pos);
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extern void raw_board_print(const pos_t *pos);
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//extern pos_t *pos_startpos(pos_t *pos);
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//void pos_check(position *pos);
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#endif /* POSITION_H */
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