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add license information & rename typedefs

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Bruno Raoult
2021-10-29 09:00:10 +02:00
parent 27a7b15038
commit 7bdc428485
10 changed files with 238 additions and 117 deletions
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src/chessdefs.h
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@@ -1,56 +1,70 @@
/* chessdefs.h - generic chess definitions.
*
* Copyright (C) 2021 Bruno Raoult ("br")
* Licensed under the GNU General Public License v3.0 or later.
* Some rights reserved. See COPYING.
*
* You should have received a copy of the GNU General Public License along with this
* program. If not, see <https://www.gnu.org/licenses/gpl-3.0-standalone.htmlL>.
*
* SPDX-License-Identifier: GPL-3.0-or-later <https://spdx.org/licenses/GPL-3.0-or-later.html>
*
*/
#ifndef CHESSDEFS_H
#define CHESSDEFS_H
/* We use the following notation
* Bit Binary Piece/color
*
* 0 0000 0001 White
* 1 0000 0010 Black
*
* 2 0000 0100 Pawn
* 3 0000 1000 Knight
* 4 0001 0000 Bishop
* 5 0010 0000 Rook
* 6 0100 0000 Queen
* 7 1000 0000 King
/* piece_t bits structure
*/
typedef unsigned char piece_t;
//#define INVALID -1 /* unused in 0x88 */
#define EMPTY 0
#define EMPTY 0
#define WHITE (0) /* 0000000 0 */
#define BLACK (1) /* 0000000 1 */
#define WHITE 0 /* 0x00 00000000 */
#define BLACK 1 /* 0x01 00000001 */
#define PAWN (1 << 1) /* 0000001 0 */
#define KNIGHT (1 << 2) /* 0000010 0 */
#define BISHOP (1 << 3) /* 0000100 0 */
#define ROOK (1 << 4) /* 0001000 0 */
#define QUEEN (1 << 5) /* 0010000 0 */
#define KING (1 << 6) /* 0100000 0 */
#define PAWN (1 << 1) /* 0x02 00000010 */
#define KNIGHT (1 << 2) /* 0x04 00000100 */
#define BISHOP (1 << 3) /* 0x08 00001000 */
#define ROOK (1 << 4) /* 0x10 00010000 */
#define QUEEN (1 << 5) /* 0x20 00100000 */
#define KING (1 << 6) /* 0x40 01000000 */
#define MASK_COLOR 0x01 /* 0000000 1 */
#define MASK_PIECE 0x7E /* 0111111 0 */
#define MASK_COLOR 0x01 /* 00000001 */
#define MASK_PIECE 0x7E /* 01111110 */
#define COLOR(p) ((p) & MASK_COLOR)
#define PIECE(p) ((p) & MASK_PIECE)
#define COLOR(p) ((p) & MASK_COLOR)
#define PIECE(p) ((p) & MASK_PIECE)
#define IS_WHITE(p) (!COLOR(p))
#define IS_BLACK(p) (COLOR(p))
#define IS_WHITE(p) (!COLOR(p))
#define IS_BLACK(p) (COLOR(p))
#define SET_WHITE(p) ((p) &= ~MASK_COLOR)
#define SET_BLACK(p) ((p) |= MASK_COLOR)
#define SET_COLOR(p, c) (!(c)? SET_WHITE(p): SET_BLACK(p))
#define TURN_WHITE 0
#define TURN_BLACK 1
/* square_t bits structure : ffffrrrr
* ffff: file
* rrrr: rank
*/
typedef unsigned char square_t;
typedef unsigned char piece_t, color_t;
#define GET_F(s) ((s) >> 4)
#define GET_R(s) ((s) & 0x0f)
#define SET_F(s, f) ((s) &= 0x0f, (s) |= (f)<<4)
#define SET_R(s, r) ((s) &= 0xf0, (s) |= (r))
/* castle_t bits structure
*/
typedef unsigned char castle_t;
#define CASTLE_WK 1 /* 0x01 00000001 */
#define CASTLE_WQ (1 << 1) /* 0x02 00000010 */
#define CASTLE_BK (1 << 2) /* 0x04 00000100 */
#define CASTLE_BQ (1 << 3) /* 0x08 00001000 */
#define CASTLE_W 0x03 /* 00000011 W castle mask */
#define CASTLE_B 0x0C /* 00001100 B castle mask */
#define CASTLE_WK 0x01
#define CASTLE_WQ 0x02
#define CASTLE_BK 0x04
#define CASTLE_BQ 0x08
#define CASTLE_W 0x03 /* white castle mask */
#define CASTLE_B 0x0C /* black castle mask */
#endif