dogeystamp/chess_inator
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perf: borrow in the evalscore piece changes

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This commit is contained in:
dogeystamp 2024-11-03 11:42:19 -05:00
parent 4b245e0421
commit 1c4c158053
2 changed files with 8 additions and 8 deletions
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12
src/eval.rs
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@ -52,14 +52,14 @@ pub(crate) mod eval_score {
/// Add/remove the value of a piece based on the PST.
///
/// Use +1 as sign to add, -1 to delete.
fn change_piece(&mut self, pc: ColPiece, sq: Square, sign: i8) {
fn change_piece(&mut self, pc: &ColPiece, sq: &Square, sign: i8) {
assert!(sign == 1 || sign == -1);
let tables = [
(&mut self.midgame, PST_MIDGAME),
(&mut self.endgame, PST_ENDGAME),
(&mut self.midgame, &PST_MIDGAME),
(&mut self.endgame, &PST_ENDGAME),
];
for (phase, pst) in tables {
phase.score += pst[pc.pc][pc.col][sq] * EvalInt::from(pc.col.sign() * sign);
phase.score += pst[pc.pc][pc.col][*sq] * EvalInt::from(pc.col.sign() * sign);
}
use crate::Piece::*;
@ -73,12 +73,12 @@ pub(crate) mod eval_score {
}
/// Remove the value of a piece on a square.
pub fn del_piece(&mut self, pc: ColPiece, sq: Square) {
pub fn del_piece(&mut self, pc: &ColPiece, sq: &Square) {
self.change_piece(pc, sq, -1);
}
/// Add the value of a piece on a square.
pub fn add_piece(&mut self, pc: ColPiece, sq: Square) {
pub fn add_piece(&mut self, pc: &ColPiece, sq: &Square) {
self.change_piece(pc, sq, 1);
}
}

4
src/lib.rs
View File

@ -469,7 +469,7 @@ impl Board {
let pl = &mut self[pc.col];
pl[pc.into()].on_sq(sq);
*self.mail.sq_mut(sq) = Some(pc);
self.eval.add_piece(pc, sq);
self.eval.add_piece(&pc, &sq);
dest_pc
}
@ -487,7 +487,7 @@ impl Board {
let pl = &mut self[pc.col];
pl[pc.into()].off_sq(sq);
*self.mail.sq_mut(sq) = None;
self.eval.del_piece(pc, sq);
self.eval.del_piece(&pc, &sq);
Some(pc)
} else {
None