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Make move added #1

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Dec 8, 2024
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Make move added #1

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78 changes: 65 additions & 13 deletions src/board.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -103,6 +103,7 @@ impl Board {
en_passant_square: None,
halfmove_clock: 0,
fullmove_number: 1,
moves: Vec::new(),
}
}

Expand Down Expand Up @@ -179,7 +180,7 @@ impl Board {
match color {
Color::White => {
self.white_occupancy.set_bit(index);
// self.white_attacks = self.white_attacks.or(&bb);
// TODO: self.white_attacks = self.white_attacks.or(&bb);
match piece {
Piece::Pawn => self.white_pieces.pawns = self.white_pieces.pawns.or(&bb),
Piece::Knight => self.white_pieces.knights = self.white_pieces.knights.or(&bb),
Expand All @@ -191,7 +192,7 @@ impl Board {
}
Color::Black => {
self.black_occupancy.set_bit(index);
// self.black_attacks = self.black_attacks.or(&bb);
// TODO: self.black_attacks = self.black_attacks.or(&bb);
match piece {
Piece::Pawn => self.black_pieces.pawns = self.black_pieces.pawns.or(&bb),
Piece::Knight => self.black_pieces.knights = self.black_pieces.knights.or(&bb),
Expand All @@ -210,7 +211,7 @@ impl Board {
match color {
Color::White => {
self.white_occupancy.clear_bit(index);
// self.white_attacks = self.white_attacks.xor(&bb);
// TODO: self.white_attacks = self.white_attacks.xor(&bb);
match piece {
Piece::Pawn => self.white_pieces.pawns = self.white_pieces.pawns.xor(&bb),
Piece::Knight => self.white_pieces.knights = self.white_pieces.knights.xor(&bb),
Expand All @@ -222,7 +223,7 @@ impl Board {
}
Color::Black => {
self.black_occupancy.clear_bit(index);
// self.black_attacks = self.black_attacks.xor(&bb);
// TODO: self.black_attacks = self.black_attacks.xor(&bb);
match piece {
Piece::Pawn => self.black_pieces.pawns = self.black_pieces.pawns.xor(&bb),
Piece::Knight => self.black_pieces.knights = self.black_pieces.knights.xor(&bb),
Expand Down Expand Up @@ -287,21 +288,72 @@ impl Board {
}

pub fn make_move(&mut self, mv: &Move) {
if let Some(index) = self.en_passant_square {
self.en_passant_square = None;
if mv.en_passant {
let direction = match mv.color {
Color::White => 8,
Color::Black => -8,
};
self.remove_piece(mv.color, Piece::Pawn, mv.from);
self.add_piece(mv.color, Piece::Pawn, mv.to / 8, mv.to % 8);
self.remove_piece(match mv.color {
Color::White => Color::Black,
Color::Black => Color::White,
}, Piece::Pawn, (mv.to as i32 + direction) as usize);
} else if mv.castling {
match mv.to {
2 => {
self.remove_piece(mv.color, Piece::King, mv.from);
self.add_piece(mv.color, Piece::King, mv.to / 8, mv.to % 8);
self.remove_piece(mv.color, Piece::Rook, 0);
self.add_piece(mv.color, Piece::Rook, 3 / 8, 3 % 8);
}
6 => {
self.remove_piece(mv.color, Piece::King, mv.from);
self.add_piece(mv.color, Piece::King, mv.to / 8, mv.to % 8);
self.remove_piece(mv.color, Piece::Rook, 7);
self.add_piece(mv.color, Piece::Rook, 5 / 8, 5 % 8);
}
58 => {
self.remove_piece(mv.color, Piece::King, mv.from);
self.add_piece(mv.color, Piece::King, mv.to / 8, mv.to % 8);
self.remove_piece(mv.color, Piece::Rook, 56);
self.add_piece(mv.color, Piece::Rook, 59 / 8, 59 % 8);
}
62 => {
self.remove_piece(mv.color, Piece::King, mv.from);
self.add_piece(mv.color, Piece::King, mv.to / 8, mv.to % 8);
self.remove_piece(mv.color, Piece::Rook, 63);
self.add_piece(mv.color, Piece::Rook, 61 / 8, 61 % 8);
}
_ => panic!("Invalid castling move"),
}
} else if let Some(promotion) = mv.promotion
{
self.remove_piece(mv.color, Piece::Pawn, mv.from);
self.add_piece(mv.color, promotion, mv.to / 8, mv.to % 8);
} else {
self.remove_piece(mv.color, mv.piece, mv.from);
self.add_piece(mv.color, mv.piece, mv.to / 8, mv.to % 8);
}

let from = mv.from;
let to = mv.to;
let piece = mv.piece;
let color = mv.color;

self.remove_piece(color, piece, from);
self.add_piece(color, piece, to / 8, to % 8);
if let Some(ep) = self.en_passant_square {
self.en_passant_square = None;
}

self.turn = match self.turn {
Color::White => Color::Black,
Color::Black => Color::White,
};

self.moves.push(*mv);

self.halfmove_clock += 1;
if mv.piece == Piece::Pawn {
self.halfmove_clock = 0;
}

if self.turn == Color::Black {
self.fullmove_number += 1;
}
}
}
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