smay1613 / 15-puzzleqt Goto Github PK

isBoardValid method only works for second and eighth position
you can do this:

`void GameBoard::shuffle()
{
auto seed = std::chrono::system_clock::now().time_since_epoch().count();
static std::mt19937 g(seed);
do {
std::shuffle(m_raw_board.begin(), m_raw_board.end(), g);

    if(!(m_raw_board.at(hiddenElementIndex()) == m_raw_board[0])){
        std::swap(m_raw_board.at(7), m_raw_board.at(hiddenElementIndex()));
    }
}
while (!isBoardValid());
emit dataChanged(index(0, 0), index(m_boardsize - 1, 0));

}`