Created a transposition table and fixed some bugs

1 files changed, 7 insertions, 1 deletions

diff --git a/model/src/board.rs b/model/src/board.rs
index f95d837..a6eba23 100644
--- a/model/src/board.rs
+++ b/model/src/board.rs
@@ -51,7 +51,7 @@ impl PartialEq for CheckersBitBoard {
 impl Hash for CheckersBitBoard {
 	/// Hashes with only the pieces part, to ensure correctness and efficiency
 	fn hash<H: Hasher>(&self, hasher: &mut H) {
-		self.pieces.hash(hasher)
+		self.hash_code().hash(hasher)
 	}
 }
 
@@ -98,6 +98,11 @@ impl CheckersBitBoard {
 		STARTING_BITBOARD
 	}
 
+	#[must_use]
+	pub const fn hash_code(self) -> u64 {
+		(((self.color & self.pieces) as u64) << 32) | (self.pieces as u64)
+	}
+
 	/// Gets the bits that represent where pieces are on the board
 	#[must_use]
 	pub const fn pieces_bits(self) -> u32 {
@@ -634,6 +639,7 @@ impl CheckersBitBoard {
 			.clear_piece(value.wrapping_sub(7) & 31);
 
 		const KING_MASK: u32 = 0b00000100000100000100000100000000;
+		// TODO double jump should only apply to the piece that just moved
 		if (is_king || (((1 << value) & KING_MASK) == 0))
 			&& PossibleMoves::has_jumps(board.flip_turn())
 		{