wait until a variable is set

[kevindebb]

Hello everybody,

I'm trying to make a multiplayer tetris. I wan't to synchronize the two games on each computer with each other. Now I'm stuck with the following problem:

On a certain moment in the game the client has to wait until a variable is set. The variable is send by the server. Now i'm wondering how the program can "wait" until the variable is set. I tried it like I would do it in C but my program crashed that way. I fully understand signals and slots but I think i can't use it in this case.

else
    {
        while(!ack_piece) // <---- I need a way to fix this
        {
        }
        this->set_ack_piece(false);
        qDebug()<<"beginstadium van nextpiece = "<<nextpiece_temp;
        nextPiece.setRandomShape(nextpiece_temp);
    }

else
    {
        while(!ack_piece) // <---- I need a way to fix this
        {
        }
        this->set_ack_piece(false);
        qDebug()<<"beginstadium van nextpiece = "<<nextpiece_temp;
        nextPiece.setRandomShape(nextpiece_temp);
    }

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Hope somebody can help me.

Thanks