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UCI Bot Integration ​

This file contains a simple implementation of a UCI (Universal Chess Interface) bot class.

Class Definition ​

The UciPlayer class has a simple implementation of a UCI bot. It is self-explanatory so I won't add any comments here.

cpp
class UciPlayer {
    public:
        Bot bot;
        UciPlayer();

        //* Uci Methods
        void NotifyNewGame();
        void SetPosition(std::string fen);
        void ProcessPositionCommand(std::string message);
        void ProcessGoCommand(std::string message);
        void Quit();

        //* Essential Bot Methods
        void MakeMove(std::string move);

        std::string getFen();
        std::string getBestMove();
};

The Constructor ​

A simple one-liner constructor that initialises the bot.

cpp
UciPlayer::UciPlayer() {
    this->bot = Bot();
}

Notify New Game ​

This method is called when a new game starts, or when we need to reset the bot's internal state.

cpp
void UciPlayer::NotifyNewGame() {
    this->bot = Bot();
}

Quit ​

This method is called when the bot is quitting. It currently does nothing, but can be used to free up resources if needed.

cpp
void UciPlayer::Quit() {
    UciPlayer::NotifyNewGame();
}

Set Position ​

This method sets the position of the bot using a FEN string.

cpp
void UciPlayer::SetPosition(std::string fen) {
    this->bot = Bot(fen);
}

Make Move ​

This method makes a move on the bot's internal board.

cpp
void UciPlayer::MakeMove(std::string move) {
    this->bot.board.makeMove(uci::uciToMove(this->bot.board, move));
}

Get FEN ​

This method returns the current position of the bot in FEN format.

cpp
std::string UciPlayer::getFen() {
    return this->bot.board.getFen();
}

Get Best Move ​

This method returns the best move calculated by the bot.

cpp
std::string UciPlayer::getBestMove() {
    char colour;
    if (this->bot.board.sideToMove() == Color::WHITE) colour = 'w';
    else colour = 'b';
    return this->bot.get_best_move(this->bot.board, colour);
}