+++ /dev/null
-/*
- Stockfish, a UCI chess playing engine derived from Glaurung 2.1
- Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
- Copyright (C) 2008-2010 Marco Costalba, Joona Kiiski, Tord Romstad
-
- Stockfish is free software: you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation, either version 3 of the License, or
- (at your option) any later version.
-
- Stockfish is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>.
-*/
-
-#if !defined(SQUARE_H_INCLUDED)
-#define SQUARE_H_INCLUDED
-
-#include <cstdlib> // for abs()
-#include <string>
-
-#include "misc.h"
-#include "piece.h"
-
-enum Square {
- SQ_A1, SQ_B1, SQ_C1, SQ_D1, SQ_E1, SQ_F1, SQ_G1, SQ_H1,
- SQ_A2, SQ_B2, SQ_C2, SQ_D2, SQ_E2, SQ_F2, SQ_G2, SQ_H2,
- SQ_A3, SQ_B3, SQ_C3, SQ_D3, SQ_E3, SQ_F3, SQ_G3, SQ_H3,
- SQ_A4, SQ_B4, SQ_C4, SQ_D4, SQ_E4, SQ_F4, SQ_G4, SQ_H4,
- SQ_A5, SQ_B5, SQ_C5, SQ_D5, SQ_E5, SQ_F5, SQ_G5, SQ_H5,
- SQ_A6, SQ_B6, SQ_C6, SQ_D6, SQ_E6, SQ_F6, SQ_G6, SQ_H6,
- SQ_A7, SQ_B7, SQ_C7, SQ_D7, SQ_E7, SQ_F7, SQ_G7, SQ_H7,
- SQ_A8, SQ_B8, SQ_C8, SQ_D8, SQ_E8, SQ_F8, SQ_G8, SQ_H8,
- SQ_NONE,
-
- DELTA_N = 8,
- DELTA_E = 1,
- DELTA_S = -8,
- DELTA_W = -1,
-
- DELTA_NN = DELTA_N + DELTA_N,
- DELTA_NE = DELTA_N + DELTA_E,
- DELTA_SE = DELTA_S + DELTA_E,
- DELTA_SS = DELTA_S + DELTA_S,
- DELTA_SW = DELTA_S + DELTA_W,
- DELTA_NW = DELTA_N + DELTA_W
-};
-
-enum File {
- FILE_A, FILE_B, FILE_C, FILE_D, FILE_E, FILE_F, FILE_G, FILE_H
-};
-
-enum Rank {
- RANK_1, RANK_2, RANK_3, RANK_4, RANK_5, RANK_6, RANK_7, RANK_8
-};
-
-enum SquareColor {
- DARK, LIGHT
-};
-
-ENABLE_OPERATORS_ON(Square)
-ENABLE_OPERATORS_ON(File)
-ENABLE_OPERATORS_ON(Rank)
-
-inline Square make_square(File f, Rank r) {
- return Square((int(r) << 3) | int(f));
-}
-
-inline File square_file(Square s) {
- return File(int(s) & 7);
-}
-
-inline Rank square_rank(Square s) {
- return Rank(int(s) >> 3);
-}
-
-inline Square flip_square(Square s) {
- return Square(int(s) ^ 56);
-}
-
-inline Square flop_square(Square s) {
- return Square(int(s) ^ 7);
-}
-
-inline Square relative_square(Color c, Square s) {
- return Square(int(s) ^ (int(c) * 56));
-}
-
-inline Rank relative_rank(Color c, Rank r) {
- return Rank(int(r) ^ (int(c) * 7));
-}
-
-inline Rank relative_rank(Color c, Square s) {
- return relative_rank(c, square_rank(s));
-}
-
-inline SquareColor square_color(Square s) {
- return SquareColor(int(square_rank(s) + s) & 1);
-}
-
-inline bool opposite_color_squares(Square s1, Square s2) {
- int s = int(s1) ^ int(s2);
- return ((s >> 3) ^ s) & 1;
-}
-
-inline int file_distance(Square s1, Square s2) {
- return abs(square_file(s1) - square_file(s2));
-}
-
-inline int rank_distance(Square s1, Square s2) {
- return abs(square_rank(s1) - square_rank(s2));
-}
-
-inline int square_distance(Square s1, Square s2) {
- return Max(file_distance(s1, s2), rank_distance(s1, s2));
-}
-
-inline File file_from_char(char c) {
- return File(c - 'a') + FILE_A;
-}
-
-inline char file_to_char(File f) {
- return char(f - FILE_A + int('a'));
-}
-
-inline Rank rank_from_char(char c) {
- return Rank(c - '1') + RANK_1;
-}
-
-inline char rank_to_char(Rank r) {
- return char(r - RANK_1 + int('1'));
-}
-
-inline const std::string square_to_string(Square s) {
- char ch[] = { file_to_char(square_file(s)), rank_to_char(square_rank(s)), 0 };
- return std::string(ch);
-}
-
-inline bool file_is_ok(File f) {
- return f >= FILE_A && f <= FILE_H;
-}
-
-inline bool rank_is_ok(Rank r) {
- return r >= RANK_1 && r <= RANK_8;
-}
-
-inline bool square_is_ok(Square s) {
- return s >= SQ_A1 && s <= SQ_H8;
-}
-
-#endif // !defined(SQUARE_H_INCLUDED)
projects / stockfish / blobdiff