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[board] Add remove_piece_at() method to BitBoard

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Eryn Wells 2023-12-21 08:30:48 -08:00
parent ed9a919db6
commit aa7e901241
1 changed files with 17 additions and 2 deletions
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19
board/src/bitboard.rs
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@ -19,6 +19,10 @@ impl BitBoard {
self.0 |= 1 << sq.index self.0 |= 1 << sq.index
} }
fn remove_piece_at(&mut self, sq: &Square) {
self.0 &= !(1 << sq.index)
}
#[cfg(target_arch = "arm")] #[cfg(target_arch = "arm")]
fn _arm_count_leading_zeros(&self) -> u8 { fn _arm_count_leading_zeros(&self) -> u8 {
let mut number_of_leading_zeros: u8 = 0; let mut number_of_leading_zeros: u8 = 0;
@ -58,9 +62,20 @@ mod tests {
#[test] #[test]
fn place_piece_at() { fn place_piece_at() {
let sq = Square::from_index(34).expect("Invalid square index");
let mut bb = BitBoard(0b1001100); let mut bb = BitBoard(0b1001100);
bb.place_piece_at(&Square::from_index(34).expect("Invalid square index")); bb.place_piece_at(&sq);
assert!(bb.has_piece_at(&Square::from_index(34).expect("Invalid square index"))); assert!(bb.has_piece_at(&sq));
}
#[test]
fn remove_piece_at() {
let sq = Square::from_index(2).expect("Invalid square index");
let mut bb = BitBoard(0b1001100);
bb.remove_piece_at(&sq);
assert!(!bb.has_piece_at(&sq));
} }
#[cfg(target_arch = "arm")] #[cfg(target_arch = "arm")]