X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fmove.cpp;fp=src%2Fmove.cpp;h=0000000000000000000000000000000000000000;hp=8ea6ad52aea0694ee5cf87808f444221e33837f1;hb=7b4aa1070882cba085c9d6ed03d934734c395fe5;hpb=960a689769cb143afa364d3669940c18d0c3a503 diff --git a/src/move.cpp b/src/move.cpp deleted file mode 100644 index 8ea6ad52..00000000 --- a/src/move.cpp +++ /dev/null @@ -1,154 +0,0 @@ -/* - Stockfish, a UCI chess playing engine derived from Glaurung 2.1 - Copyright (C) 2004-2008 Tord Romstad (Glaurung author) - Copyright (C) 2008-2012 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 . -*/ - -#include -#include - -#include "movegen.h" -#include "position.h" - -using std::string; - -/// move_to_uci() converts a move to a string in coordinate notation -/// (g1f3, a7a8q, etc.). The only special case is castling moves, where we print -/// in the e1g1 notation in normal chess mode, and in e1h1 notation in chess960 -/// mode. Internally castle moves are always coded as "king captures rook". - -const string move_to_uci(Move m, bool chess960) { - - Square from = from_sq(m); - Square to = to_sq(m); - string promotion; - - if (m == MOVE_NONE) - return "(none)"; - - if (m == MOVE_NULL) - return "0000"; - - if (is_castle(m) && !chess960) - to = (to > from ? FILE_G : FILE_C) | rank_of(from); - - if (is_promotion(m)) - promotion = char(tolower(piece_type_to_char(promotion_type(m)))); - - return square_to_string(from) + square_to_string(to) + promotion; -} - - -/// move_from_uci() takes a position and a string representing a move in -/// simple coordinate notation and returns an equivalent legal Move if any. - -Move move_from_uci(const Position& pos, string& str) { - - if (str.length() == 5) // Junior could send promotion piece in uppercase - str[4] = char(tolower(str[4])); - - for (MoveList ml(pos); !ml.end(); ++ml) - if (str == move_to_uci(ml.move(), pos.is_chess960())) - return ml.move(); - - return MOVE_NONE; -} - - -/// move_to_san() takes a position and a legal Move as input and returns its -/// short algebraic notation representation. - -const string move_to_san(Position& pos, Move m) { - - if (m == MOVE_NONE) - return "(none)"; - - if (m == MOVE_NULL) - return "(null)"; - - assert(pos.move_is_legal(m)); - - Bitboard attackers; - bool ambiguousMove, ambiguousFile, ambiguousRank; - string san; - Square from = from_sq(m); - Square to = to_sq(m); - PieceType pt = type_of(pos.piece_on(from)); - - if (is_castle(m)) - san = to > from ? "O-O" : "O-O-O"; - else - { - if (pt != PAWN) - { - san = piece_type_to_char(pt); - - // Disambiguation if we have more then one piece with destination 'to' - // note that for pawns is not needed because starting file is explicit. - attackers = pos.attackers_to(to) & pos.pieces(pos.side_to_move(), pt); - attackers ^= from; - ambiguousMove = ambiguousFile = ambiguousRank = false; - - while (attackers) - { - Square sq = pop_1st_bit(&attackers); - - // Pinned pieces are not included in the possible sub-set - if (!pos.pl_move_is_legal(make_move(sq, to), pos.pinned_pieces())) - continue; - - ambiguousFile |= file_of(sq) == file_of(from); - ambiguousRank |= rank_of(sq) == rank_of(from); - ambiguousMove = true; - } - - if (ambiguousMove) - { - if (!ambiguousFile) - san += file_to_char(file_of(from)); - - else if (!ambiguousRank) - san += rank_to_char(rank_of(from)); - - else - san += square_to_string(from); - } - } - - if (pos.is_capture(m)) - { - if (pt == PAWN) - san += file_to_char(file_of(from)); - - san += 'x'; - } - - san += square_to_string(to); - - if (is_promotion(m)) - san += string("=") + piece_type_to_char(promotion_type(m)); - } - - if (pos.move_gives_check(m, CheckInfo(pos))) - { - StateInfo st; - pos.do_move(m, st); - san += MoveList(pos).size() ? "+" : "#"; - pos.undo_move(m); - } - - return san; -}