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bitboard: use Coord type

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This commit is contained in:
Simon Gardling 2025-02-27 12:36:26 -05:00
parent a68e2e093b
commit 992ca01169
Signed by: titaniumtown
GPG Key ID: 9AB28AC10ECE533D
1 changed files with 8 additions and 8 deletions
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16
src/repr/bitboard.rs
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@ -44,34 +44,34 @@ impl BitBoard {
#[const_fn(cfg(not(feature = "bitvec")))] #[const_fn(cfg(not(feature = "bitvec")))]
pub const fn get(&self, row: Coord, col: Coord) -> bool { pub const fn get(&self, row: Coord, col: Coord) -> bool {
self.get_by_index(get_index(row, col) as usize) self.get_by_index(get_index(row, col))
} }
#[const_fn(cfg(not(feature = "bitvec")))] #[const_fn(cfg(not(feature = "bitvec")))]
pub const fn set(&mut self, row: Coord, col: Coord, value: bool) { pub const fn set(&mut self, row: Coord, col: Coord, value: bool) {
self.set_by_index(get_index(row, col) as usize, value); self.set_by_index(get_index(row, col), value);
} }
#[cfg(not(feature = "bitvec"))] #[cfg(not(feature = "bitvec"))]
const fn get_by_index(&self, index: usize) -> bool { const fn get_by_index(&self, index: Coord) -> bool {
((self.0 >> index) & 0b1) != 0b0 ((self.0 >> index) & 0b1) != 0b0
} }
#[cfg(not(feature = "bitvec"))] #[cfg(not(feature = "bitvec"))]
const fn set_by_index(&mut self, index: usize, value: bool) { const fn set_by_index(&mut self, index: Coord, value: bool) {
// PERF! branchless setting of bit (~+3% perf bump) // PERF! branchless setting of bit (~+3% perf bump)
self.0 &= !(0b1 << index); // clear bit self.0 &= !(0b1 << index); // clear bit
self.0 |= (value as BitBoardInner) << index; // set bit (if needed) self.0 |= (value as BitBoardInner) << index; // set bit (if needed)
} }
#[cfg(feature = "bitvec")] #[cfg(feature = "bitvec")]
pub fn get_by_index(&self, index: usize) -> bool { pub fn get_by_index(&self, index: Coord) -> bool {
self.0[index] self.0[index as usize]
} }
#[cfg(feature = "bitvec")] #[cfg(feature = "bitvec")]
pub fn set_by_index(&mut self, index: usize, value: bool) { pub fn set_by_index(&mut self, index: Coord, value: bool) {
self.0.set(index, value); self.0.set(index as usize, value);
} }
// works on both `bitvec` and native (const on native) // works on both `bitvec` and native (const on native)