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start bitboard init (see commit details)

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- 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
This commit is contained in:
Bruno Raoult
2024-02-11 20:47:09 +01:00
parent 4f25c1416d
commit d5906b1fb9
10 changed files with 208 additions and 164 deletions
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20
src/fen.c
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@@ -110,7 +110,7 @@ pos_t *fen2pos(pos_t *pos, const char *fen)
log_i(5, "f=%d r=%d *p=%c piece=%#04x t=%d c=%d\n", file, rank, *cur,
piece, PIECE(piece), COLOR(piece));
# endif
pos_set_sq(&tmppos, BB(file, rank), piece);
pos_set_sq(&tmppos, sq_make(file, rank), piece);
file++;
} else { /* error */
err_line = __LINE__, err_char = *cur, err_pos = cur - fen;
@@ -146,7 +146,7 @@ pos_t *fen2pos(pos_t *pos, const char *fen)
if (*cur == '-') {
cur++;
} else {
tmppos.en_passant = BB(C2FILE(*cur), C2RANK(*(cur+1)));
tmppos.en_passant = sq_make(C2FILE(*cur), C2RANK(*(cur+1)));
cur += 2;
}
SKIP_BLANK(cur);
@@ -205,21 +205,21 @@ char *pos2fen(const pos_t *pos, char *fen)
/* 1) position
*/
for (rank_t rank = RANK_8; rank >= RANK_1; --rank) {
for (file_t file = FILE_A; file <= FILE_H;) {
square_t sq = BB(file, rank);
for (rank_t r = RANK_8; r >= RANK_1; --r) {
for (file_t f = FILE_A; f <= FILE_H;) {
square_t sq = sq_make(f, r);
piece_t piece =pos->board[sq];
if (pos->board[sq] == EMPTY) {
int len = 0;
for (; file <= FILE_H && pos->board[BB(file,rank)] == EMPTY; file++)
for (; f <= FILE_H && pos->board[sq_make(f, r)] == EMPTY; f++)
len++;
fen[cur++] = '0' + len;
} else {
fen[cur++] = piece_to_char_color(piece);
file++;
f++;
}
}
fen[cur++] = rank == RANK_1? ' ': '/';
fen[cur++] = r == RANK_1? ' ': '/';
}
/* 2) next turn color
@@ -243,8 +243,8 @@ char *pos2fen(const pos_t *pos, char *fen)
if (!pos->en_passant) {
fen[cur++] = '-';
} else {
fen[cur++] = FILE2C(BBfile(pos->en_passant));
fen[cur++] = RANK2C(BBrank(pos->en_passant));
fen[cur++] = FILE2C(sq_file(pos->en_passant));
fen[cur++] = RANK2C(sq_rank(pos->en_passant));
}
fen[cur++] = ' ';