OMGeeky/hcsalmon1-Chess-Engine-Test
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OMGeeky
2025-02-20 17:27:25 +01:00
parent bfec63b701
commit 4e1c736364
1 changed files with 2 additions and 0 deletions
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Rust/main.rs
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@@ -191,6 +191,7 @@ use consts::*;
impl Engine {
fn get_rook_attacks_fast(&mut self, starting_square: usize, mut occupancy: u64) -> u64 {
occupancy &= constants::ROOK_MASKS[starting_square];
// Note: use of saturating_mul here since I think it is intended to ignore overflows
occupancy = occupancy.saturating_mul(constants::ROOK_MAGIC_NUMBERS[starting_square]);
occupancy >>= 64 - constants::ROOK_REL_BITS[starting_square];
let converted_occupancy: usize = occupancy as usize;
@@ -199,6 +200,7 @@ impl Engine {
fn get_bishop_attacks_fast(&mut self, starting_square: usize, mut occupancy: u64) -> u64 {
occupancy &= constants::BISHOP_MASKS[starting_square];
// Note: use of saturating_mul here since I think it is intended to ignore overflows
occupancy = occupancy.saturating_mul(constants::BISHOP_MAGIC_NUMBERS[starting_square]);
occupancy >>= 64 - constants::BISHOP_REL_BITS[starting_square];
constants::BISHOP_ATTACKS[starting_square][occupancy as usize]