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[position] Address a few warnings in Position

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Build Position::sight_of_piece() and ::is_king_in_check() for cfg(test) only.
Expand the doc comment for ::king_danger() slightly.
Remove an unused Rank import.

# Conflicts:
#	position/src/position/position.rs
This commit is contained in:
Eryn Wells 2024-02-11 10:22:10 -07:00
parent e94819c79a
commit 1958c1a50e
1 changed files with 5 additions and 1 deletions
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6
position/src/position/position.rs
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@ -212,12 +212,15 @@ impl Position {
self.moves().moves_for_piece(piece)
}
#[cfg(test)]
pub(crate) fn sight_of_piece(&self, piece: &PlacedPiece) -> BitBoard {
piece.sight(&self.pieces, self.en_passant_square)
}
/// A bitboard representing the squares where a king of the given color will
/// be in danger. The king cannot move to these squares.
/// be in danger of being captured by the opposing player. If the king is on
/// one of these squares, it is in check. The king cannot move to these
/// squares.
pub(crate) fn king_danger(&self, color: Color) -> BitBoard {
let pieces_without_king = {
let mut cloned_pieces = self.pieces.clone();
@ -230,6 +233,7 @@ impl Position {
self._sight_of_player(color.other(), &pieces_without_king)
}
#[cfg(test)]
pub(crate) fn is_king_in_check(&self) -> bool {
let danger_squares = self.king_danger(self.color_to_move);
!(danger_squares & self.king_bitboard(self.color_to_move)).is_empty()