opelly/Stockfish
1
0
Fork 0
mirror of https://github.com/opelly27/Stockfish.git synced 2026-05-20 06:17:49 +00:00
Code Issues Packages Projects Releases Wiki Activity

Another attempt at fixing Chess960

Browse Source 
Keep the isChess960 flag inside Position so that is
copied with the Position, but esplicitly highlight the
fact that a FEN string has not enough information to detect
Chess960 in general case. To do this add a boolean argument
isChess960 to from_fen() function so to self document this
shortcoming of FEN notation.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
This commit is contained in:
Marco Costalba
2011-01-03 12:50:49 +01:00
parent 2bb555025f
commit f200f3ccd2
6 changed files with 13 additions and 16 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/position.cpp
+4 -7
View File
@@ -152,9 +152,9 @@ Position::Position(const Position& pos, int th) {
nodes = 0;
}
Position::Position(const string& fen, int th) {
Position::Position(const string& fen, bool isChess960, int th) {
from_fen(fen);
from_fen(fen, isChess960);
threadID = th;
}
@@ -175,7 +175,7 @@ void Position::detach() {
/// string. This function is not very robust - make sure that input FENs are
/// correct (this is assumed to be the responsibility of the GUI).
void Position::from_fen(const string& fen) {
void Position::from_fen(const string& fen, bool c960) {
/*
A FEN string defines a particular position using only the ASCII character set.
@@ -274,10 +274,7 @@ void Position::from_fen(const string& fen) {
castleRightsMask[make_square(initialQRFile, RANK_1)] ^= WHITE_OOO;
castleRightsMask[make_square(initialQRFile, RANK_8)] ^= BLACK_OOO;
isChess960 = initialKFile != FILE_E
|| initialQRFile != FILE_A
|| initialKRFile != FILE_H;
isChess960 = c960;
find_checkers();
st->key = compute_key();