Пример #1
0
ChessBoolean chess_position_move_is_legal(const ChessPosition* position, ChessMove move)
{
    ChessMoveGenerator generator;
    ChessMove legalMove;

    chess_move_generator_init(&generator, position);
    while ((legalMove = chess_move_generator_next(&generator)))
    {
        if (legalMove == move)
            return CHESS_TRUE;
    }
    return CHESS_FALSE;
}
Пример #2
0
ChessResult chess_position_check_result(const ChessPosition* position)
{
    ChessMoveGenerator generator;

    chess_move_generator_init(&generator, position);
    if (chess_move_generator_next(&generator) > 0)
        return CHESS_RESULT_NONE;

    if (!chess_position_is_check(position))
        return CHESS_RESULT_DRAW; /* Stalemate */

    return (position->to_move == CHESS_COLOR_WHITE) ?
        CHESS_RESULT_BLACK_WINS : CHESS_RESULT_WHITE_WINS;
}
Пример #3
0
static void list_moves(const ChessGameIterator* iter)
{
    ChessMoveGenerator generator;
    ChessMove move;
    char buf[16];

    chess_move_generator_init(&generator, &iter->position);
    while ((move = chess_move_generator_next(&generator)))
    {
        chess_print_move_san(move, &iter->position, buf);
        printf("%s ", buf);
    }
    putchar('\n');
}
Пример #4
0
void chess_generate_moves(const ChessPosition* position, ChessArray* moves)
{
    ChessMoveGenerator generator;
    ChessMove move;

    chess_move_generator_init(&generator, position);

    while ((move = chess_move_generator_next(&generator)))
    {
        if (!move_is_legal(position, move))
            continue;

        chess_array_push(moves, &move);
    }
}