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make_move now handles the setting of en passant

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This commit is contained in:
Karma Riuk 2025-02-02 23:33:52 +01:00
parent 2128159914
commit a7cf8e0c21
1 changed files with 11 additions and 0 deletions
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11
cpp/src/board.cpp
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@ -188,6 +188,17 @@ Board Board::make_move(Move move) const {
// -- Handle promotion // -- Handle promotion
if (move.promoting_to != 0) if (move.promoting_to != 0)
ret.squares[move.target_square] = move.promoting_to; ret.squares[move.target_square] = move.promoting_to;
// -- Set en passant target if need
if ((squares[move.source_square] & 0b111) == Piece::Pawn
&& std::abs(move.target_square - move.source_square) == 16) {
if (white_to_play)
ret.en_passant_target = move.target_square - 8;
else
ret.en_passant_target = move.target_square + 8;
} else {
ret.en_passant_target = -1;
}
return ret; return ret;
} }