change

You can use the change function to update the state from outside. This can be used to create games using a websocket or to generate chess problems.

Typing

type MoveData = {
    FEN: string;
    from: [number, number];
    to: [number, number];
    figure: { 
        color: "white" | "black";
        type: "pawn" | "bishop" | "knight" | "rook" | "queen" | "king";
    };
}

type ChangeMove = {
    move: MoveData;
    withTransition?: boolean;
};

Code

const App = () => {
    const [change, setChange] = useState();

    const doMove = () => {
        setChange(
            {
                move: { // <~~~ MoveData
                    figure: { type: "knigts", color: "white" },
                    from: [3, 7],
                    to: [4, 5],
                    FEN: "q6k/8/8/8/8/4N3/8/4KR2 b - - 0 1",
                },
                withTransition: true // <~~~ For transition move
            }
        );
    }

    return (
        <ChessBoard 
            FEN="rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1"
            onChange={handleChange}
            onEndGame={handleEndGame}
            change={change}
        />
    );
}