From 8e92bc2370b76207168b1c6ae266f70b88df2af5 Mon Sep 17 00:00:00 2001 From: Bruno BELANYI Date: Mon, 18 Jul 2022 00:03:35 +0200 Subject: [PATCH] Add 'Direction::move_square' --- src/board/directions.rs | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/src/board/directions.rs b/src/board/directions.rs index d339bc1..1c73a16 100644 --- a/src/board/directions.rs +++ b/src/board/directions.rs @@ -1,4 +1,4 @@ -use super::{Bitboard, Rank}; +use super::{Bitboard, Rank, Square}; /// A direction on the board. Either along the rook, bishop, or knight directions #[derive(Copy, Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)] @@ -67,6 +67,12 @@ impl Direction { Self::KNIGHT_DIRECTIONS.iter().cloned() } + /// Move a [Square] along the given [Direction], unless it would wrap at the end of the board + pub fn move_square(self, square: Square) -> Option { + let res = self.move_board(square.into_bitboard()); + res.into_iter().next() + } + /// Move every piece on a board along the given direction. Do not wrap around the board. #[inline(always)] pub fn move_board(self, board: Bitboard) -> Bitboard { @@ -105,7 +111,6 @@ impl Direction { #[cfg(test)] mod test { use super::*; - use crate::board::Square; #[test] fn north() {