Copy chessdefs.h into temp-migration-bitboard/chessdefs.h

src/chessdefs.h

@@ -1,129 +0,0 @@
-/* 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.html>.
- *
- * SPDX-License-Identifier: GPL-3.0-or-later <https://spdx.org/licenses/GPL-3.0-or-later.html>
- *
- */
-
-#ifndef CHESSDEFS_H
-#define CHESSDEFS_H
-
-#include "br.h"
-
-/* piece_t bits structure
- * MSB 8 7 6 5 4 3 2 1 LSB
- * 1: color (0 for white)
- * 2-7: bit set for pawn (2), knight, bishop, rook, queen, king (7)
- */
-typedef u8 piece_t;
-
-enum {
-    E_EMPTY = 0,
-    E_COLOR,                                      /* LSB */
-    E_PAWN,
-    E_KNIGHT,
-    E_BISHOP,
-    E_ROOK,
-    E_QUEEN,
-    E_KING,
-};
-
-/* pos_t bitboards tables
- */
-enum {
-    BB_ALL = 0,                                   /* OR of all bitboards */
-    BB_UNUSED,                                    /* future use ? */
-    BB_PAWN = E_PAWN,
-    BB_KNIGHT,
-    BB_BISHOP,
-    BB_ROOK,
-    BB_QUEEN,
-    BB_KING,
-    BB_END
-};
-
-/* piece bitmask in piece_t
- */
-enum {
-    EMPTY  = 0,
-    PAWN   = 1 << (E_PAWN - 1),                   /* 1<<(2-1) = 0x02 00000010 */
-    KNIGHT = 1 << (E_KNIGHT - 1),                 /* 0x04 00000100 */
-    BISHOP = 1 << (E_BISHOP - 1),                 /* 0x08 00001000 */
-    ROOK   = 1 << (E_ROOK - 1),                   /* 0x10 00010000 */
-    QUEEN  = 1 << (E_QUEEN - 1),                  /* 0x20 00100000 */
-    KING   = 1 << (E_KING - 1),                   /* 0x40 01000000 */
-};
-
-#define PIECETOBB(p)    (ffs64(PIECE(p)))         /* from piece_t to bb piece array */
-
-#define WHITE           0                         /* 0x00 00000000 */
-#define BLACK           1                         /* 0x01 00000001 */
-#define OPPONENT(p)     !(p)
-
-#define MASK_COLOR      0x01                      /* 00000001 */
-#define MASK_PIECE      0x7E                      /* 01111110 */
-
-#define COLOR(p)        ((p) & MASK_COLOR)        /* bitmask */
-#define PIECE(p)        ((p) & MASK_PIECE)
-#define E_PIECE(p)      (ffs64(PIECE(p)))         /* convert mask to E_XX */
-
-#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))
-
-/* flip a 0-63 square:
- * Vertical:   G8 (62) becomes G1 (6)
- * Horizontal: G8 (62) becomes B8 (57)
- */
-#define FLIP_V(sq)      ((sq) ^ 56)
-#define FLIP_H(sq)      ((sq) ^ 7)
-/* square_t bits structure : rrrrffff
- * ffff: file
- * rrrr: rank
- */
-typedef uchar square_t;
-
-/* castle_t bits structure
- */
-typedef unsigned char castle_t;
-
-#define CASTLE_WK       (1 << 0)                  /* 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        (CASTLE_WK | CASTLE_WQ)   /* 00000011 W castle mask */
-#define CASTLE_B        (CASTLE_BK | CASTLE_BQ)   /* 00001100 B castle mask */
-
-/* game phases
- */
-#define OPENING    0
-#define MIDDLEGAME 1
-#define ENDGAME    2
-
-/* bitboard
- */
-typedef u64 bitboard_t;
-
-
-/* eval type
- */
-typedef s32 eval_t;
-
-/* forward typedefs
- */
-typedef struct piece_list_s piece_list_t;
-typedef struct board_s board_t;
-typedef struct pos_s pos_t;
-typedef struct move_s move_t;
-
-#endif