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Everywhere: Colour => Color

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The system language is US English. :^)
This commit is contained in:
Andreas Kling 2021-01-09 13:44:11 +01:00
parent 30ef10a5b9
commit 9d6198b683
7 changed files with 170 additions and 170 deletions
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54
Games/Chess/ChessWidget.cpp
View file

@ -59,13 +59,13 @@ void ChessWidget::paint_event(GUI::PaintEvent& event)
size_t tile_width = width() / 8; size_t tile_width = width() / 8;
size_t tile_height = height() / 8; size_t tile_height = height() / 8;
unsigned coord_rank_file = (side() == Chess::Colour::White) ? 0 : 7; unsigned coord_rank_file = (side() == Chess::Color::White) ? 0 : 7;
Chess::Board& active_board = (m_playback ? board_playback() : board()); Chess::Board& active_board = (m_playback ? board_playback() : board());
Chess::Square::for_each([&](Chess::Square sq) { Chess::Square::for_each([&](Chess::Square sq) {
Gfx::IntRect tile_rect; Gfx::IntRect tile_rect;
if (side() == Chess::Colour::White) { if (side() == Chess::Color::White) {
tile_rect = { sq.file * tile_width, (7 - sq.rank) * tile_height, tile_width, tile_height }; tile_rect = { sq.file * tile_width, (7 - sq.rank) * tile_height, tile_width, tile_height };
} else { } else {
tile_rect = { (7 - sq.file) * tile_width, sq.rank * tile_height, tile_width, tile_height }; tile_rect = { (7 - sq.file) * tile_width, sq.rank * tile_height, tile_width, tile_height };
@ -141,7 +141,7 @@ void ChessWidget::paint_event(GUI::PaintEvent& event)
Gfx::FloatPoint arrow_start; Gfx::FloatPoint arrow_start;
Gfx::FloatPoint arrow_end; Gfx::FloatPoint arrow_end;
if (side() == Chess::Colour::White) { if (side() == Chess::Color::White) {
arrow_start = { m.from.file * tile_width + tile_width / 2.0f, (7 - m.from.rank) * tile_height + tile_height / 2.0f }; arrow_start = { m.from.file * tile_width + tile_width / 2.0f, (7 - m.from.rank) * tile_height + tile_height / 2.0f };
arrow_end = { m.to.file * tile_width + tile_width / 2.0f, (7 - m.to.rank) * tile_height + tile_height / 2.0f }; arrow_end = { m.to.file * tile_width + tile_width / 2.0f, (7 - m.to.rank) * tile_height + tile_height / 2.0f };
} else { } else {
@ -175,7 +175,7 @@ void ChessWidget::mousedown_event(GUI::MouseEvent& event)
auto square = mouse_to_square(event); auto square = mouse_to_square(event);
auto piece = board().get_piece(square); auto piece = board().get_piece(square);
if (drag_enabled() && piece.colour == board().turn() && !m_playback) { if (drag_enabled() && piece.color == board().turn() && !m_playback) {
m_dragging_piece = true; m_dragging_piece = true;
m_drag_point = event.position(); m_drag_point = event.position();
m_moving_square = square; m_moving_square = square;
@ -227,7 +227,7 @@ void ChessWidget::mouseup_event(GUI::MouseEvent& event)
String msg; String msg;
switch (board().game_result()) { switch (board().game_result()) {
case Chess::Board::Result::CheckMate: case Chess::Board::Result::CheckMate:
if (board().turn() == Chess::Colour::White) { if (board().turn() == Chess::Color::White) {
msg = "Black wins by Checkmate."; msg = "Black wins by Checkmate.";
} else { } else {
msg = "White wins by Checkmate."; msg = "White wins by Checkmate.";
@ -333,18 +333,18 @@ static RefPtr<Gfx::Bitmap> get_piece(const StringView& set, const StringView& im
void ChessWidget::set_piece_set(const StringView& set) void ChessWidget::set_piece_set(const StringView& set)
{ {
m_piece_set = set; m_piece_set = set;
m_pieces.set({ Chess::Colour::White, Chess::Type::Pawn }, get_piece(set, "white-pawn.png")); m_pieces.set({ Chess::Color::White, Chess::Type::Pawn }, get_piece(set, "white-pawn.png"));
m_pieces.set({ Chess::Colour::Black, Chess::Type::Pawn }, get_piece(set, "black-pawn.png")); m_pieces.set({ Chess::Color::Black, Chess::Type::Pawn }, get_piece(set, "black-pawn.png"));
m_pieces.set({ Chess::Colour::White, Chess::Type::Knight }, get_piece(set, "white-knight.png")); m_pieces.set({ Chess::Color::White, Chess::Type::Knight }, get_piece(set, "white-knight.png"));
m_pieces.set({ Chess::Colour::Black, Chess::Type::Knight }, get_piece(set, "black-knight.png")); m_pieces.set({ Chess::Color::Black, Chess::Type::Knight }, get_piece(set, "black-knight.png"));
m_pieces.set({ Chess::Colour::White, Chess::Type::Bishop }, get_piece(set, "white-bishop.png")); m_pieces.set({ Chess::Color::White, Chess::Type::Bishop }, get_piece(set, "white-bishop.png"));
m_pieces.set({ Chess::Colour::Black, Chess::Type::Bishop }, get_piece(set, "black-bishop.png")); m_pieces.set({ Chess::Color::Black, Chess::Type::Bishop }, get_piece(set, "black-bishop.png"));
m_pieces.set({ Chess::Colour::White, Chess::Type::Rook }, get_piece(set, "white-rook.png")); m_pieces.set({ Chess::Color::White, Chess::Type::Rook }, get_piece(set, "white-rook.png"));
m_pieces.set({ Chess::Colour::Black, Chess::Type::Rook }, get_piece(set, "black-rook.png")); m_pieces.set({ Chess::Color::Black, Chess::Type::Rook }, get_piece(set, "black-rook.png"));
m_pieces.set({ Chess::Colour::White, Chess::Type::Queen }, get_piece(set, "white-queen.png")); m_pieces.set({ Chess::Color::White, Chess::Type::Queen }, get_piece(set, "white-queen.png"));
m_pieces.set({ Chess::Colour::Black, Chess::Type::Queen }, get_piece(set, "black-queen.png")); m_pieces.set({ Chess::Color::Black, Chess::Type::Queen }, get_piece(set, "black-queen.png"));
m_pieces.set({ Chess::Colour::White, Chess::Type::King }, get_piece(set, "white-king.png")); m_pieces.set({ Chess::Color::White, Chess::Type::King }, get_piece(set, "white-king.png"));
m_pieces.set({ Chess::Colour::Black, Chess::Type::King }, get_piece(set, "black-king.png")); m_pieces.set({ Chess::Color::Black, Chess::Type::King }, get_piece(set, "black-king.png"));
} }
Chess::Square ChessWidget::mouse_to_square(GUI::MouseEvent& event) const Chess::Square ChessWidget::mouse_to_square(GUI::MouseEvent& event) const
@ -352,7 +352,7 @@ Chess::Square ChessWidget::mouse_to_square(GUI::MouseEvent& event) const
size_t tile_width = width() / 8; size_t tile_width = width() / 8;
size_t tile_height = height() / 8; size_t tile_height = height() / 8;
if (side() == Chess::Colour::White) { if (side() == Chess::Color::White) {
return { 7 - (event.y() / tile_height), event.x() / tile_width }; return { 7 - (event.y() / tile_height), event.x() / tile_width };
} else { } else {
return { event.y() / tile_height, 7 - (event.x() / tile_width) }; return { event.y() / tile_height, 7 - (event.x() / tile_width) };
@ -371,7 +371,7 @@ void ChessWidget::reset()
m_playback_move_number = 0; m_playback_move_number = 0;
m_board_playback = Chess::Board(); m_board_playback = Chess::Board();
m_board = Chess::Board(); m_board = Chess::Board();
m_side = (arc4random() % 2) ? Chess::Colour::White : Chess::Colour::Black; m_side = (arc4random() % 2) ? Chess::Color::White : Chess::Color::Black;
m_drag_enabled = true; m_drag_enabled = true;
input_engine_move(); input_engine_move();
update(); update();
@ -380,7 +380,7 @@ void ChessWidget::reset()
void ChessWidget::set_board_theme(const StringView& name) void ChessWidget::set_board_theme(const StringView& name)
{ {
// FIXME: Add some kind of themes.json // FIXME: Add some kind of themes.json
// The following Colours have been taken from lichess.org, but i'm pretty sure they took them from chess.com. // The following Colors have been taken from lichess.org, but i'm pretty sure they took them from chess.com.
if (name == "Beige") { if (name == "Beige") {
m_board_theme = { "Beige", Color::from_rgb(0xb58863), Color::from_rgb(0xf0d9b5) }; m_board_theme = { "Beige", Color::from_rgb(0xb58863), Color::from_rgb(0xf0d9b5) };
} else if (name == "Green") { } else if (name == "Green") {
@ -497,7 +497,7 @@ bool ChessWidget::import_pgn(const StringView& import_path)
bool skip = false; bool skip = false;
bool recursive_annotation = false; bool recursive_annotation = false;
bool future_expansion = false; bool future_expansion = false;
Chess::Colour turn = Chess::Colour::White; Chess::Color turn = Chess::Color::White;
String movetext; String movetext;
for (size_t j = i; j < lines.size(); j++) for (size_t j = i; j < lines.size(); j++)
@ -549,11 +549,11 @@ bool ChessWidget::import_pgn(const StringView& import_path)
break; break;
// FIXME: When we become able to set more of the game state, fix these end results // FIXME: When we become able to set more of the game state, fix these end results
if (token.contains("1-0")) { if (token.contains("1-0")) {
m_board.set_resigned(Chess::Colour::Black); m_board.set_resigned(Chess::Color::Black);
break; break;
} }
if (token.contains("0-1")) { if (token.contains("0-1")) {
m_board.set_resigned(Chess::Colour::White); m_board.set_resigned(Chess::Color::White);
break; break;
} }
if (token.contains("1/2-1/2")) { if (token.contains("1/2-1/2")) {
@ -561,7 +561,7 @@ bool ChessWidget::import_pgn(const StringView& import_path)
} }
if (!token.ends_with(".")) { if (!token.ends_with(".")) {
m_board.apply_move(Chess::Move::from_algebraic(token, turn, m_board)); m_board.apply_move(Chess::Move::from_algebraic(token, turn, m_board));
turn = Chess::opposing_colour(turn); turn = Chess::opposing_color(turn);
} }
} }
@ -593,8 +593,8 @@ bool ChessWidget::export_pgn(const StringView& export_path) const
String username(getlogin()); String username(getlogin());
const String player1 = (!username.is_empty() ? username : "?"); const String player1 = (!username.is_empty() ? username : "?");
const String player2 = (!m_engine.is_null() ? "SerenityOS ChessEngine" : "?"); const String player2 = (!m_engine.is_null() ? "SerenityOS ChessEngine" : "?");
file.write(String::formatted("[White \"{}\"]\n", m_side == Chess::Colour::White ? player1 : player2)); file.write(String::formatted("[White \"{}\"]\n", m_side == Chess::Color::White ? player1 : player2));
file.write(String::formatted("[Black \"{}\"]\n", m_side == Chess::Colour::Black ? player1 : player2)); file.write(String::formatted("[Black \"{}\"]\n", m_side == Chess::Color::Black ? player1 : player2));
file.write(String::formatted("[Result \"{}\"]\n", Chess::Board::result_to_points(m_board.game_result(), m_board.turn()))); file.write(String::formatted("[Result \"{}\"]\n", Chess::Board::result_to_points(m_board.game_result(), m_board.turn())));
file.write("[WhiteElo \"?\"]\n"); file.write("[WhiteElo \"?\"]\n");
@ -632,7 +632,7 @@ void ChessWidget::flip_board()
GUI::MessageBox::show(window(), "You can only flip the board on your turn.", "Flip Board", GUI::MessageBox::Type::Information); GUI::MessageBox::show(window(), "You can only flip the board on your turn.", "Flip Board", GUI::MessageBox::Type::Information);
return; return;
} }
m_side = Chess::opposing_colour(m_side); m_side = Chess::opposing_color(m_side);
input_engine_move(); input_engine_move();
update(); update();
} }

6
Games/Chess/ChessWidget.h
View file

@ -54,8 +54,8 @@ public:
Chess::Board& board_playback() { return m_board_playback; }; Chess::Board& board_playback() { return m_board_playback; };
const Chess::Board& board_playback() const { return m_board_playback; }; const Chess::Board& board_playback() const { return m_board_playback; };
Chess::Colour side() const { return m_side; }; Chess::Color side() const { return m_side; };
void set_side(Chess::Colour side) { m_side = side; }; void set_side(Chess::Color side) { m_side = side; };
void set_piece_set(const StringView& set); void set_piece_set(const StringView& set);
const String& piece_set() const { return m_piece_set; }; const String& piece_set() const { return m_piece_set; };
@ -135,7 +135,7 @@ private:
Color m_marking_primary_color { Color::from_rgba(0x66ff0000) }; Color m_marking_primary_color { Color::from_rgba(0x66ff0000) };
Color m_marking_alternate_color { Color::from_rgba(0x66ffaa00) }; Color m_marking_alternate_color { Color::from_rgba(0x66ffaa00) };
Color m_marking_secondary_color { Color::from_rgba(0x6655dd55) }; Color m_marking_secondary_color { Color::from_rgba(0x6655dd55) };
Chess::Colour m_side { Chess::Colour::White }; Chess::Color m_side { Chess::Color::White };
HashMap<Chess::Piece, RefPtr<Gfx::Bitmap>> m_pieces; HashMap<Chess::Piece, RefPtr<Gfx::Bitmap>> m_pieces;
String m_piece_set; String m_piece_set;
Chess::Square m_moving_square { 50, 50 }; Chess::Square m_moving_square { 50, 50 };

208
Libraries/LibChess/Chess.cpp
View file

@ -72,9 +72,9 @@ Chess::Type piece_for_char_promotion(const StringView& str)
return Type::None; return Type::None;
} }
Colour opposing_colour(Colour colour) Color opposing_color(Color color)
{ {
return (colour == Colour::White) ? Colour::Black : Colour::White; return (color == Color::White) ? Color::Black : Color::White;
} }
Square::Square(const StringView& name) Square::Square(const StringView& name)
@ -122,14 +122,14 @@ String Move::to_long_algebraic() const
return builder.build(); return builder.build();
} }
Move Move::from_algebraic(const StringView& algebraic, const Colour turn, const Board& board) Move Move::from_algebraic(const StringView& algebraic, const Color turn, const Board& board)
{ {
String move_string = algebraic; String move_string = algebraic;
Move move({ 50, 50 }, { 50, 50 }); Move move({ 50, 50 }, { 50, 50 });
if (move_string.contains("-")) { if (move_string.contains("-")) {
move.from = Square(turn == Colour::White ? 0 : 7, 4); move.from = Square(turn == Color::White ? 0 : 7, 4);
move.to = Square(turn == Colour::White ? 0 : 7, move_string == "O-O" ? 6 : 2); move.to = Square(turn == Color::White ? 0 : 7, move_string == "O-O" ? 6 : 2);
move.promote_to = Type::None; move.promote_to = Type::None;
move.piece = { turn, Type::King }; move.piece = { turn, Type::King };
@ -251,33 +251,33 @@ Board::Board()
// Fill white pawns. // Fill white pawns.
for (unsigned file = 0; file < 8; ++file) { for (unsigned file = 0; file < 8; ++file) {
set_piece({ 1, file }, { Colour::White, Type::Pawn }); set_piece({ 1, file }, { Color::White, Type::Pawn });
} }
// Fill black pawns. // Fill black pawns.
for (unsigned file = 0; file < 8; ++file) { for (unsigned file = 0; file < 8; ++file) {
set_piece({ 6, file }, { Colour::Black, Type::Pawn }); set_piece({ 6, file }, { Color::Black, Type::Pawn });
} }
// Fill while pieces. // Fill while pieces.
set_piece(Square("a1"), { Colour::White, Type::Rook }); set_piece(Square("a1"), { Color::White, Type::Rook });
set_piece(Square("b1"), { Colour::White, Type::Knight }); set_piece(Square("b1"), { Color::White, Type::Knight });
set_piece(Square("c1"), { Colour::White, Type::Bishop }); set_piece(Square("c1"), { Color::White, Type::Bishop });
set_piece(Square("d1"), { Colour::White, Type::Queen }); set_piece(Square("d1"), { Color::White, Type::Queen });
set_piece(Square("e1"), { Colour::White, Type::King }); set_piece(Square("e1"), { Color::White, Type::King });
set_piece(Square("f1"), { Colour::White, Type::Bishop }); set_piece(Square("f1"), { Color::White, Type::Bishop });
set_piece(Square("g1"), { Colour::White, Type::Knight }); set_piece(Square("g1"), { Color::White, Type::Knight });
set_piece(Square("h1"), { Colour::White, Type::Rook }); set_piece(Square("h1"), { Color::White, Type::Rook });
// Fill black pieces. // Fill black pieces.
set_piece(Square("a8"), { Colour::Black, Type::Rook }); set_piece(Square("a8"), { Color::Black, Type::Rook });
set_piece(Square("b8"), { Colour::Black, Type::Knight }); set_piece(Square("b8"), { Color::Black, Type::Knight });
set_piece(Square("c8"), { Colour::Black, Type::Bishop }); set_piece(Square("c8"), { Color::Black, Type::Bishop });
set_piece(Square("d8"), { Colour::Black, Type::Queen }); set_piece(Square("d8"), { Color::Black, Type::Queen });
set_piece(Square("e8"), { Colour::Black, Type::King }); set_piece(Square("e8"), { Color::Black, Type::King });
set_piece(Square("f8"), { Colour::Black, Type::Bishop }); set_piece(Square("f8"), { Color::Black, Type::Bishop });
set_piece(Square("g8"), { Colour::Black, Type::Knight }); set_piece(Square("g8"), { Color::Black, Type::Knight });
set_piece(Square("h8"), { Colour::Black, Type::Rook }); set_piece(Square("h8"), { Color::Black, Type::Rook });
} }
String Board::to_fen() const String Board::to_fen() const
@ -301,7 +301,7 @@ String Board::to_fen() const
if (piece == "") if (piece == "")
piece = "P"; piece = "P";
builder.append(p.colour == Colour::Black ? piece.to_lowercase() : piece); builder.append(p.color == Color::Black ? piece.to_lowercase() : piece);
} }
if (empty > 0) { if (empty > 0) {
builder.append(String::number(empty)); builder.append(String::number(empty));
@ -312,8 +312,8 @@ String Board::to_fen() const
} }
// 2. Active color // 2. Active color
ASSERT(m_turn != Colour::None); ASSERT(m_turn != Color::None);
builder.append(m_turn == Colour::White ? " w " : " b "); builder.append(m_turn == Color::White ? " w " : " b ");
// 3. Castling availability // 3. Castling availability
builder.append(m_white_can_castle_kingside ? "K" : ""); builder.append(m_white_can_castle_kingside ? "K" : "");
@ -361,7 +361,7 @@ Piece Board::set_piece(const Square& square, const Piece& piece)
return m_board[square.rank][square.file] = piece; return m_board[square.rank][square.file] = piece;
} }
bool Board::is_legal_promotion(const Move& move, Colour colour) const bool Board::is_legal_promotion(const Move& move, Color color) const
{ {
auto piece = get_piece(move.from); auto piece = get_piece(move.from);
@ -375,7 +375,7 @@ bool Board::is_legal_promotion(const Move& move, Colour colour) const
return false; return false;
} }
unsigned promotion_rank = (colour == Colour::White) ? 7 : 0; unsigned promotion_rank = (color == Color::White) ? 7 : 0;
if (move.to.rank != promotion_rank && move.promote_to != Type::None) { if (move.to.rank != promotion_rank && move.promote_to != Type::None) {
// attempted promotion from invalid rank // attempted promotion from invalid rank
@ -390,31 +390,31 @@ bool Board::is_legal_promotion(const Move& move, Colour colour) const
return true; return true;
} }
bool Board::is_legal(const Move& move, Colour colour) const bool Board::is_legal(const Move& move, Color color) const
{ {
if (colour == Colour::None) if (color == Color::None)
colour = turn(); color = turn();
if (!is_legal_no_check(move, colour)) if (!is_legal_no_check(move, color))
return false; return false;
if (!is_legal_promotion(move, colour)) if (!is_legal_promotion(move, color))
return false; return false;
Board clone = *this; Board clone = *this;
clone.apply_illegal_move(move, colour); clone.apply_illegal_move(move, color);
if (clone.in_check(colour)) if (clone.in_check(color))
return false; return false;
// Don't allow castling through check or out of check. // Don't allow castling through check or out of check.
Vector<Square> check_squares; Vector<Square> check_squares;
if (colour == Colour::White && move.from == Square("e1") && get_piece(Square("e1")) == Piece(Colour::White, Type::King)) { if (color == Color::White && move.from == Square("e1") && get_piece(Square("e1")) == Piece(Color::White, Type::King)) {
if (move.to == Square("a1") || move.to == Square("c1")) { if (move.to == Square("a1") || move.to == Square("c1")) {
check_squares = { Square("e1"), Square("d1"), Square("c1") }; check_squares = { Square("e1"), Square("d1"), Square("c1") };
} else if (move.to == Square("h1") || move.to == Square("g1")) { } else if (move.to == Square("h1") || move.to == Square("g1")) {
check_squares = { Square("e1"), Square("f1"), Square("g1") }; check_squares = { Square("e1"), Square("f1"), Square("g1") };
} }
} else if (colour == Colour::Black && move.from == Square("e8") && get_piece(Square("e8")) == Piece(Colour::Black, Type::King)) { } else if (color == Color::Black && move.from == Square("e8") && get_piece(Square("e8")) == Piece(Color::Black, Type::King)) {
if (move.to == Square("a8") || move.to == Square("c8")) { if (move.to == Square("a8") || move.to == Square("c8")) {
check_squares = { Square("e8"), Square("d8"), Square("c8") }; check_squares = { Square("e8"), Square("d8"), Square("c8") };
} else if (move.to == Square("h8") || move.to == Square("g8")) { } else if (move.to == Square("h8") || move.to == Square("g8")) {
@ -424,19 +424,19 @@ bool Board::is_legal(const Move& move, Colour colour) const
for (auto& square : check_squares) { for (auto& square : check_squares) {
Board clone = *this; Board clone = *this;
clone.set_piece(move.from, EmptyPiece); clone.set_piece(move.from, EmptyPiece);
clone.set_piece(square, { colour, Type::King }); clone.set_piece(square, { color, Type::King });
if (clone.in_check(colour)) if (clone.in_check(color))
return false; return false;
} }
return true; return true;
} }
bool Board::is_legal_no_check(const Move& move, Colour colour) const bool Board::is_legal_no_check(const Move& move, Color color) const
{ {
auto piece = get_piece(move.from); auto piece = get_piece(move.from);
if (piece.colour != colour) if (piece.color != color)
// attempted move of opponent's piece // attempted move of opponent's piece
return false; return false;
@ -445,8 +445,8 @@ bool Board::is_legal_no_check(const Move& move, Colour colour) const
return false; return false;
if (piece.type == Type::Pawn) { if (piece.type == Type::Pawn) {
int dir = (colour == Colour::White) ? +1 : -1; int dir = (color == Color::White) ? +1 : -1;
unsigned start_rank = (colour == Colour::White) ? 1 : 6; unsigned start_rank = (color == Color::White) ? 1 : 6;
if (move.from.rank == start_rank && move.to.rank == move.from.rank + (2 * dir) && move.to.file == move.from.file if (move.from.rank == start_rank && move.to.rank == move.from.rank + (2 * dir) && move.to.file == move.from.file
&& get_piece(move.to).type == Type::None && get_piece({ move.from.rank + dir, move.from.file }).type == Type::None) { && get_piece(move.to).type == Type::None && get_piece({ move.from.rank + dir, move.from.file }).type == Type::None) {
@ -464,15 +464,15 @@ bool Board::is_legal_no_check(const Move& move, Colour colour) const
} }
if (move.to.file == move.from.file + 1 || move.to.file == move.from.file - 1) { if (move.to.file == move.from.file + 1 || move.to.file == move.from.file - 1) {
unsigned other_start_rank = (colour == Colour::White) ? 6 : 1; unsigned other_start_rank = (color == Color::White) ? 6 : 1;
unsigned en_passant_rank = (colour == Colour::White) ? 4 : 3; unsigned en_passant_rank = (color == Color::White) ? 4 : 3;
Move en_passant_last_move = { { other_start_rank, move.to.file }, { en_passant_rank, move.to.file } }; Move en_passant_last_move = { { other_start_rank, move.to.file }, { en_passant_rank, move.to.file } };
if (get_piece(move.to).colour == opposing_colour(colour)) { if (get_piece(move.to).color == opposing_color(color)) {
// Pawn capture. // Pawn capture.
return true; return true;
} }
if (m_last_move.has_value() && move.from.rank == en_passant_rank && m_last_move.value() == en_passant_last_move if (m_last_move.has_value() && move.from.rank == en_passant_rank && m_last_move.value() == en_passant_last_move
&& get_piece(en_passant_last_move.to) == Piece(opposing_colour(colour), Type::Pawn)) { && get_piece(en_passant_last_move.to) == Piece(opposing_color(color), Type::Pawn)) {
// En passant. // En passant.
return true; return true;
} }
@ -482,7 +482,7 @@ bool Board::is_legal_no_check(const Move& move, Colour colour) const
} else if (piece.type == Type::Knight) { } else if (piece.type == Type::Knight) {
int rank_delta = abs(move.to.rank - move.from.rank); int rank_delta = abs(move.to.rank - move.from.rank);
int file_delta = abs(move.to.file - move.from.file); int file_delta = abs(move.to.file - move.from.file);
if (get_piece(move.to).colour != colour && max(rank_delta, file_delta) == 2 && min(rank_delta, file_delta) == 1) { if (get_piece(move.to).color != color && max(rank_delta, file_delta) == 2 && min(rank_delta, file_delta) == 1) {
return true; return true;
} }
} else if (piece.type == Type::Bishop) { } else if (piece.type == Type::Bishop) {
@ -497,7 +497,7 @@ bool Board::is_legal_no_check(const Move& move, Colour colour) const
} }
} }
if (get_piece(move.to).colour != colour) { if (get_piece(move.to).color != color) {
return true; return true;
} }
} }
@ -513,7 +513,7 @@ bool Board::is_legal_no_check(const Move& move, Colour colour) const
} }
} }
if (get_piece(move.to).colour != colour) { if (get_piece(move.to).color != color) {
return true; return true;
} }
} }
@ -529,7 +529,7 @@ bool Board::is_legal_no_check(const Move& move, Colour colour) const
} }
} }
if (get_piece(move.to).colour != colour) { if (get_piece(move.to).color != color) {
return true; return true;
} }
} }
@ -537,12 +537,12 @@ bool Board::is_legal_no_check(const Move& move, Colour colour) const
int rank_delta = move.to.rank - move.from.rank; int rank_delta = move.to.rank - move.from.rank;
int file_delta = move.to.file - move.from.file; int file_delta = move.to.file - move.from.file;
if (abs(rank_delta) <= 1 && abs(file_delta) <= 1) { if (abs(rank_delta) <= 1 && abs(file_delta) <= 1) {
if (get_piece(move.to).colour != colour) { if (get_piece(move.to).color != color) {
return true; return true;
} }
} }
if (colour == Colour::White) { if (color == Color::White) {
if ((move.to == Square("a1") || move.to == Square("c1")) && m_white_can_castle_queenside && get_piece(Square("b1")).type == Type::None && get_piece(Square("c1")).type == Type::None && get_piece(Square("d1")).type == Type::None) { if ((move.to == Square("a1") || move.to == Square("c1")) && m_white_can_castle_queenside && get_piece(Square("b1")).type == Type::None && get_piece(Square("c1")).type == Type::None && get_piece(Square("d1")).type == Type::None) {
return true; return true;
@ -564,11 +564,11 @@ bool Board::is_legal_no_check(const Move& move, Colour colour) const
return false; return false;
} }
bool Board::in_check(Colour colour) const bool Board::in_check(Color color) const
{ {
Square king_square = { 50, 50 }; Square king_square = { 50, 50 };
Square::for_each([&](const Square& square) { Square::for_each([&](const Square& square) {
if (get_piece(square) == Piece(colour, Type::King)) { if (get_piece(square) == Piece(color, Type::King)) {
king_square = square; king_square = square;
return IterationDecision::Break; return IterationDecision::Break;
} }
@ -577,7 +577,7 @@ bool Board::in_check(Colour colour) const
bool check = false; bool check = false;
Square::for_each([&](const Square& square) { Square::for_each([&](const Square& square) {
if (is_legal_no_check({ square, king_square }, opposing_colour(colour))) { if (is_legal_no_check({ square, king_square }, opposing_color(color))) {
check = true; check = true;
return IterationDecision::Break; return IterationDecision::Break;
} }
@ -587,20 +587,20 @@ bool Board::in_check(Colour colour) const
return check; return check;
} }
bool Board::apply_move(const Move& move, Colour colour) bool Board::apply_move(const Move& move, Color color)
{ {
if (colour == Colour::None) if (color == Color::None)
colour = turn(); color = turn();
if (!is_legal(move, colour)) if (!is_legal(move, color))
return false; return false;
const_cast<Move&>(move).piece = get_piece(move.from); const_cast<Move&>(move).piece = get_piece(move.from);
return apply_illegal_move(move, colour); return apply_illegal_move(move, color);
} }
bool Board::apply_illegal_move(const Move& move, Colour colour) bool Board::apply_illegal_move(const Move& move, Color color)
{ {
Board clone = *this; Board clone = *this;
clone.m_previous_states = {}; clone.m_previous_states = {};
@ -612,7 +612,7 @@ bool Board::apply_illegal_move(const Move& move, Colour colour)
m_previous_states.set(clone, state_count + 1); m_previous_states.set(clone, state_count + 1);
m_moves.append(move); m_moves.append(move);
m_turn = opposing_colour(colour); m_turn = opposing_color(color);
m_last_move = move; m_last_move = move;
m_moves_since_capture++; m_moves_since_capture++;
@ -627,32 +627,32 @@ bool Board::apply_illegal_move(const Move& move, Colour colour)
if (move.from == Square("h8") || move.to == Square("h8") || move.from == Square("e8")) if (move.from == Square("h8") || move.to == Square("h8") || move.from == Square("e8"))
m_black_can_castle_kingside = false; m_black_can_castle_kingside = false;
if (colour == Colour::White && move.from == Square("e1") && get_piece(Square("e1")) == Piece(Colour::White, Type::King)) { if (color == Color::White && move.from == Square("e1") && get_piece(Square("e1")) == Piece(Color::White, Type::King)) {
if (move.to == Square("a1") || move.to == Square("c1")) { if (move.to == Square("a1") || move.to == Square("c1")) {
set_piece(Square("e1"), EmptyPiece); set_piece(Square("e1"), EmptyPiece);
set_piece(Square("a1"), EmptyPiece); set_piece(Square("a1"), EmptyPiece);
set_piece(Square("c1"), { Colour::White, Type::King }); set_piece(Square("c1"), { Color::White, Type::King });
set_piece(Square("d1"), { Colour::White, Type::Rook }); set_piece(Square("d1"), { Color::White, Type::Rook });
return true; return true;
} else if (move.to == Square("h1") || move.to == Square("g1")) { } else if (move.to == Square("h1") || move.to == Square("g1")) {
set_piece(Square("e1"), EmptyPiece); set_piece(Square("e1"), EmptyPiece);
set_piece(Square("h1"), EmptyPiece); set_piece(Square("h1"), EmptyPiece);
set_piece(Square("g1"), { Colour::White, Type::King }); set_piece(Square("g1"), { Color::White, Type::King });
set_piece(Square("f1"), { Colour::White, Type::Rook }); set_piece(Square("f1"), { Color::White, Type::Rook });
return true; return true;
} }
} else if (colour == Colour::Black && move.from == Square("e8") && get_piece(Square("e8")) == Piece(Colour::Black, Type::King)) { } else if (color == Color::Black && move.from == Square("e8") && get_piece(Square("e8")) == Piece(Color::Black, Type::King)) {
if (move.to == Square("a8") || move.to == Square("c8")) { if (move.to == Square("a8") || move.to == Square("c8")) {
set_piece(Square("e8"), EmptyPiece); set_piece(Square("e8"), EmptyPiece);
set_piece(Square("a8"), EmptyPiece); set_piece(Square("a8"), EmptyPiece);
set_piece(Square("c8"), { Colour::Black, Type::King }); set_piece(Square("c8"), { Color::Black, Type::King });
set_piece(Square("d8"), { Colour::Black, Type::Rook }); set_piece(Square("d8"), { Color::Black, Type::Rook });
return true; return true;
} else if (move.to == Square("h8") || move.to == Square("g8")) { } else if (move.to == Square("h8") || move.to == Square("g8")) {
set_piece(Square("e8"), EmptyPiece); set_piece(Square("e8"), EmptyPiece);
set_piece(Square("h8"), EmptyPiece); set_piece(Square("h8"), EmptyPiece);
set_piece(Square("g8"), { Colour::Black, Type::King }); set_piece(Square("g8"), { Color::Black, Type::King });
set_piece(Square("f8"), { Colour::Black, Type::Rook }); set_piece(Square("f8"), { Color::Black, Type::Rook });
return true; return true;
} }
} }
@ -660,14 +660,14 @@ bool Board::apply_illegal_move(const Move& move, Colour colour)
if (move.piece.type == Type::Pawn) if (move.piece.type == Type::Pawn)
m_moves_since_pawn_advance = 0; m_moves_since_pawn_advance = 0;
if (get_piece(move.to).colour != Colour::None) { if (get_piece(move.to).color != Color::None) {
const_cast<Move&>(move).is_capture = true; const_cast<Move&>(move).is_capture = true;
m_moves_since_capture = 0; m_moves_since_capture = 0;
} }
if (get_piece(move.from).type == Type::Pawn && ((colour == Colour::Black && move.to.rank == 0) || (colour == Colour::White && move.to.rank == 7))) { if (get_piece(move.from).type == Type::Pawn && ((color == Color::Black && move.to.rank == 0) || (color == Color::White && move.to.rank == 7))) {
// Pawn Promotion // Pawn Promotion
set_piece(move.to, { colour, move.promote_to }); set_piece(move.to, { color, move.promote_to });
set_piece(move.from, EmptyPiece); set_piece(move.from, EmptyPiece);
if (in_check(m_turn)) if (in_check(m_turn))
@ -678,7 +678,7 @@ bool Board::apply_illegal_move(const Move& move, Colour colour)
if (get_piece(move.from).type == Type::Pawn && move.from.file != move.to.file && get_piece(move.to).type == Type::None) { if (get_piece(move.from).type == Type::Pawn && move.from.file != move.to.file && get_piece(move.to).type == Type::None) {
// En passant. // En passant.
if (colour == Colour::White) { if (color == Color::White) {
set_piece({ move.to.rank - 1, move.to.file }, EmptyPiece); set_piece({ move.to.rank - 1, move.to.file }, EmptyPiece);
} else { } else {
set_piece({ move.to.rank + 1, move.to.file }, EmptyPiece); set_piece({ move.to.rank + 1, move.to.file }, EmptyPiece);
@ -689,8 +689,8 @@ bool Board::apply_illegal_move(const Move& move, Colour colour)
Square::for_each([&](Square sq) { Square::for_each([&](Square sq) {
// Ambiguous Move // Ambiguous Move
if (sq != move.from && get_piece(sq).type == move.piece.type && get_piece(sq).colour == move.piece.colour) { if (sq != move.from && get_piece(sq).type == move.piece.type && get_piece(sq).color == move.piece.color) {
if (is_legal(Move(sq, move.to), get_piece(sq).colour)) { if (is_legal(Move(sq, move.to), get_piece(sq).color)) {
m_moves.last().is_ambiguous = true; m_moves.last().is_ambiguous = true;
m_moves.last().ambiguous = sq; m_moves.last().ambiguous = sq;
@ -709,10 +709,10 @@ bool Board::apply_illegal_move(const Move& move, Colour colour)
return true; return true;
} }
Move Board::random_move(Colour colour) const Move Board::random_move(Color color) const
{ {
if (colour == Colour::None) if (color == Color::None)
colour = turn(); color = turn();
Move move = { { 50, 50 }, { 50, 50 } }; Move move = { { 50, 50 }, { 50, 50 } };
int probability = 1; int probability = 1;
@ -728,8 +728,8 @@ Move Board::random_move(Colour colour) const
Board::Result Board::game_result() const Board::Result Board::game_result() const
{ {
if (m_resigned != Colour::None) if (m_resigned != Color::None)
return (m_resigned == Colour::White) ? Result::WhiteResign : Result::BlackResign; return (m_resigned == Color::White) ? Result::WhiteResign : Result::BlackResign;
bool sufficient_material = false; bool sufficient_material = false;
bool no_more_pieces_allowed = false; bool no_more_pieces_allowed = false;
@ -750,7 +750,7 @@ Board::Result Board::game_result() const
if (get_piece(sq).type == Type::Bishop) { if (get_piece(sq).type == Type::Bishop) {
if (bishop.has_value()) { if (bishop.has_value()) {
if (get_piece(sq).colour == get_piece(bishop.value()).colour) { if (get_piece(sq).color == get_piece(bishop.value()).color) {
sufficient_material = true; sufficient_material = true;
return IterationDecision::Break; return IterationDecision::Break;
} else if (sq.is_light() != bishop.value().is_light()) { } else if (sq.is_light() != bishop.value().is_light()) {
@ -800,22 +800,22 @@ Board::Result Board::game_result() const
return Result::StaleMate; return Result::StaleMate;
} }
Colour Board::game_winner() const Color Board::game_winner() const
{ {
if (game_result() == Result::CheckMate) if (game_result() == Result::CheckMate)
return opposing_colour(turn()); return opposing_color(turn());
return Colour::None; return Color::None;
} }
int Board::game_score() const int Board::game_score() const
{ {
switch (game_winner()) { switch (game_winner()) {
case Colour::White: case Color::White:
return +1; return +1;
case Colour::Black: case Color::Black:
return -1; return -1;
case Colour::None: case Color::None:
return 0; return 0;
} }
return 0; return 0;
@ -849,7 +849,7 @@ int Board::material_imbalance() const
break; break;
} }
if (get_piece(square).colour == Colour::White) { if (get_piece(square).color == Color::White) {
imbalance += value; imbalance += value;
} else { } else {
imbalance -= value; imbalance -= value;
@ -859,12 +859,12 @@ int Board::material_imbalance() const
return imbalance; return imbalance;
} }
bool Board::is_promotion_move(const Move& move, Colour colour) const bool Board::is_promotion_move(const Move& move, Color color) const
{ {
if (colour == Colour::None) if (color == Color::None)
colour = turn(); color = turn();
unsigned promotion_rank = (colour == Colour::White) ? 7 : 0; unsigned promotion_rank = (color == Color::White) ? 7 : 0;
if (move.to.rank != promotion_rank) if (move.to.rank != promotion_rank)
return false; return false;
@ -873,7 +873,7 @@ bool Board::is_promotion_move(const Move& move, Colour colour) const
Move queen_move = move; Move queen_move = move;
queen_move.promote_to = Type::Queen; queen_move.promote_to = Type::Queen;
if (!is_legal(queen_move, colour)) if (!is_legal(queen_move, color))
return false; return false;
return true; return true;
@ -904,17 +904,17 @@ bool Board::operator==(const Board& other) const
return turn() == other.turn(); return turn() == other.turn();
} }
void Board::set_resigned(Chess::Colour c) void Board::set_resigned(Chess::Color c)
{ {
m_resigned = c; m_resigned = c;
} }
String Board::result_to_string(Result result, Colour turn) String Board::result_to_string(Result result, Color turn)
{ {
switch (result) { switch (result) {
case Result::CheckMate: case Result::CheckMate:
ASSERT(turn != Chess::Colour::None); ASSERT(turn != Chess::Color::None);
return turn == Chess::Colour::White ? "Black wins by Checkmate" : "White wins by Checkmate"; return turn == Chess::Color::White ? "Black wins by Checkmate" : "White wins by Checkmate";
case Result::WhiteResign: case Result::WhiteResign:
return "Black wins by Resignation"; return "Black wins by Resignation";
case Result::BlackResign: case Result::BlackResign:
@ -938,12 +938,12 @@ String Board::result_to_string(Result result, Colour turn)
} }
} }
String Board::result_to_points(Result result, Colour turn) String Board::result_to_points(Result result, Color turn)
{ {
switch (result) { switch (result) {
case Result::CheckMate: case Result::CheckMate:
ASSERT(turn != Chess::Colour::None); ASSERT(turn != Chess::Color::None);
return turn == Chess::Colour::White ? "0-1" : "1-0"; return turn == Chess::Color::White ? "0-1" : "1-0";
case Result::WhiteResign: case Result::WhiteResign:
return "0-1"; return "0-1";
case Result::BlackResign: case Result::BlackResign:

62
Libraries/LibChess/Chess.h
View file

@ -48,31 +48,31 @@ enum class Type {
String char_for_piece(Type type); String char_for_piece(Type type);
Chess::Type piece_for_char_promotion(const StringView& str); Chess::Type piece_for_char_promotion(const StringView& str);
enum class Colour { enum class Color {
White, White,
Black, Black,
None, None,
}; };
Colour opposing_colour(Colour colour); Color opposing_color(Color color);
struct Piece { struct Piece {
constexpr Piece() constexpr Piece()
: colour(Colour::None) : color(Color::None)
, type(Type::None) , type(Type::None)
{ {
} }
constexpr Piece(Colour c, Type t) constexpr Piece(Color c, Type t)
: colour(c) : color(c)
, type(t) , type(t)
{ {
} }
Colour colour : 4; Color color : 4;
Type type : 4; Type type : 4;
bool operator==(const Piece& other) const { return colour == other.colour && type == other.type; } bool operator==(const Piece& other) const { return color == other.color && type == other.type; }
}; };
constexpr Piece EmptyPiece = { Colour::None, Type::None }; constexpr Piece EmptyPiece = { Color::None, Type::None };
struct Square { struct Square {
unsigned rank; // zero indexed; unsigned rank; // zero indexed;
@ -122,7 +122,7 @@ struct Move {
} }
bool operator==(const Move& other) const { return from == other.from && to == other.to && promote_to == other.promote_to; } bool operator==(const Move& other) const { return from == other.from && to == other.to && promote_to == other.promote_to; }
static Move from_algebraic(const StringView& algebraic, const Colour turn, const Board& board); static Move from_algebraic(const StringView& algebraic, const Color turn, const Board& board);
String to_long_algebraic() const; String to_long_algebraic() const;
String to_algebraic() const; String to_algebraic() const;
}; };
@ -134,12 +134,12 @@ public:
Piece get_piece(const Square&) const; Piece get_piece(const Square&) const;
Piece set_piece(const Square&, const Piece&); Piece set_piece(const Square&, const Piece&);
bool is_legal(const Move&, Colour colour = Colour::None) const; bool is_legal(const Move&, Color color = Color::None) const;
bool in_check(Colour colour) const; bool in_check(Color color) const;
bool is_promotion_move(const Move&, Colour colour = Colour::None) const; bool is_promotion_move(const Move&, Color color = Color::None) const;
bool apply_move(const Move&, Colour colour = Colour::None); bool apply_move(const Move&, Color color = Color::None);
const Optional<Move>& last_move() const { return m_last_move; } const Optional<Move>& last_move() const { return m_last_move; }
String to_fen() const; String to_fen() const;
@ -157,32 +157,32 @@ public:
NotFinished, NotFinished,
}; };
static String result_to_string(Result, Colour turn); static String result_to_string(Result, Color turn);
static String result_to_points(Result, Colour turn); static String result_to_points(Result, Color turn);
template<typename Callback> template<typename Callback>
void generate_moves(Callback callback, Colour colour = Colour::None) const; void generate_moves(Callback callback, Color color = Color::None) const;
Move random_move(Colour colour = Colour::None) const; Move random_move(Color color = Color::None) const;
Result game_result() const; Result game_result() const;
Colour game_winner() const; Color game_winner() const;
int game_score() const; int game_score() const;
bool game_finished() const; bool game_finished() const;
void set_resigned(Colour); void set_resigned(Color);
int material_imbalance() const; int material_imbalance() const;
Colour turn() const { return m_turn; } Color turn() const { return m_turn; }
const Vector<Move>& moves() const { return m_moves; } const Vector<Move>& moves() const { return m_moves; }
bool operator==(const Board& other) const; bool operator==(const Board& other) const;
private: private:
bool is_legal_no_check(const Move&, Colour colour) const; bool is_legal_no_check(const Move&, Color color) const;
bool is_legal_promotion(const Move&, Colour colour) const; bool is_legal_promotion(const Move&, Color color) const;
bool apply_illegal_move(const Move&, Colour colour); bool apply_illegal_move(const Move&, Color color);
Piece m_board[8][8]; Piece m_board[8][8];
Colour m_turn { Colour::White }; Color m_turn { Color::White };
Colour m_resigned { Colour::None }; Color m_resigned { Color::None };
Optional<Move> m_last_move; Optional<Move> m_last_move;
int m_moves_since_capture { 0 }; int m_moves_since_capture { 0 };
int m_moves_since_pawn_advance { 0 }; int m_moves_since_pawn_advance { 0 };
@ -198,13 +198,13 @@ private:
}; };
template<typename Callback> template<typename Callback>
void Board::generate_moves(Callback callback, Colour colour) const void Board::generate_moves(Callback callback, Color color) const
{ {
if (colour == Colour::None) if (color == Color::None)
colour = turn(); color = turn();
auto try_move = [&](Move m) { auto try_move = [&](Move m) {
if (is_legal(m, colour)) { if (is_legal(m, color)) {
if (callback(m) == IterationDecision::Break) if (callback(m) == IterationDecision::Break)
return false; return false;
} }
@ -213,7 +213,7 @@ void Board::generate_moves(Callback callback, Colour colour) const
Square::for_each([&](Square sq) { Square::for_each([&](Square sq) {
auto piece = get_piece(sq); auto piece = get_piece(sq);
if (piece.colour != colour) if (piece.color != color)
return IterationDecision::Continue; return IterationDecision::Continue;
bool keep_going = true; bool keep_going = true;
@ -298,7 +298,7 @@ template<>
struct AK::Traits<Chess::Piece> : public GenericTraits<Chess::Piece> { struct AK::Traits<Chess::Piece> : public GenericTraits<Chess::Piece> {
static unsigned hash(Chess::Piece piece) static unsigned hash(Chess::Piece piece)
{ {
return pair_int_hash(static_cast<u32>(piece.colour), static_cast<u32>(piece.type)); return pair_int_hash(static_cast<u32>(piece.color), static_cast<u32>(piece.type));
} }
}; };

2
Libraries/LibLine/XtermSuggestionDisplay.cpp
View file

@ -122,7 +122,7 @@ void XtermSuggestionDisplay::display(const SuggestionManager& manager)
if (lines_used + m_prompt_lines_at_suggestion_initiation >= m_num_lines) if (lines_used + m_prompt_lines_at_suggestion_initiation >= m_num_lines)
return IterationDecision::Break; return IterationDecision::Break;
// Only apply colour to the selection if something is *actually* added to the buffer. // Only apply color to the selection if something is *actually* added to the buffer.
if (manager.is_current_suggestion_complete() && index == manager.next_index()) { if (manager.is_current_suggestion_complete() && index == manager.next_index()) {
VT::apply_style({ Style::Foreground(Style::XtermColor::Blue) }); VT::apply_style({ Style::Foreground(Style::XtermColor::Blue) });
fflush(stderr); fflush(stderr);

6
Services/ChessEngine/MCTSTree.cpp
View file

@ -131,7 +131,7 @@ void MCTSTree::do_round()
Chess::Move MCTSTree::best_move() const Chess::Move MCTSTree::best_move() const
{ {
int score_multiplier = (m_board.turn() == Chess::Colour::White) ? 1 : -1; int score_multiplier = (m_board.turn() == Chess::Color::White) ? 1 : -1;
Chess::Move best_move = { { 0, 0 }, { 0, 0 } }; Chess::Move best_move = { { 0, 0 }, { 0, 0 } };
double best_score = -double(INFINITY); double best_score = -double(INFINITY);
@ -156,13 +156,13 @@ double MCTSTree::expected_value() const
return double(m_white_points) / m_simulations; return double(m_white_points) / m_simulations;
} }
double MCTSTree::uct(Chess::Colour colour) const double MCTSTree::uct(Chess::Color color) const
{ {
// UCT: Upper Confidence Bound Applied to Trees. // UCT: Upper Confidence Bound Applied to Trees.
// Kocsis, Levente; Szepesvári, Csaba (2006). "Bandit based Monte-Carlo Planning" // Kocsis, Levente; Szepesvári, Csaba (2006). "Bandit based Monte-Carlo Planning"
// Fun fact: Szepesvári was my data structures professor. // Fun fact: Szepesvári was my data structures professor.
double expected = expected_value() * ((colour == Chess::Colour::White) ? 1 : -1); double expected = expected_value() * ((color == Chess::Color::White) ? 1 : -1);
return expected + m_exploration_parameter * sqrt(log(m_parent->m_simulations) / m_simulations); return expected + m_exploration_parameter * sqrt(log(m_parent->m_simulations) / m_simulations);
} }

2
Services/ChessEngine/MCTSTree.h
View file

@ -49,7 +49,7 @@ public:
Chess::Move best_move() const; Chess::Move best_move() const;
double expected_value() const; double expected_value() const;
double uct(Chess::Colour colour) const; double uct(Chess::Color color) const;
bool expanded() const; bool expanded() const;
EvalMethod eval_method() const { return m_eval_method; } EvalMethod eval_method() const { return m_eval_method; }