//! [2]
void xandos::select(int index, int player, bool send)
{
if (0 > index || 8 < index) {
qDebug() << "XandOs: invalid index ->" << index;
return;
}
m_possibilities[index][8] = 1;
for (int i = 0; i < 8; i++) {
// Add the matrix at the selected index to the game matrix
// multiply the matrix values based on player, if its user than
// matrix row addition is used, matrix subtraction otherwise for the droid
m_gameMatrix[i] += m_possibilities[index][i] * player;
if (0 != m_gameMatrix[i] && m_gameMatrix[i] % 3 == 0) {
// emit wining signal if any matrix value equals 3
Q_EMIT won(m_gameMatrix[i] / 3);
stopDroid();
return;
}
}
if (noMoreSelections()) {
// emit tie signal if there are no more choices available
// since there is only two players (1,-1) that means -2
// represents a tie
Q_EMIT won(-2);
stopDroid();
return;
}
if (send) {
Q_EMIT sendSelection(index);
}
}
//! [2]
void xandosdroid::onInvoked(const bb::system::InvokeRequest& request) {
if (request.action().compare("bb.action.START") == 0) {
qDebug() << "XandOsDroid : start requested";
// once the headless is started, communicate back to ui that its ready to play
connectToServer();
} else if (request.action().compare("bb.action.STOP") == 0) {
qDebug() << "XandOsDroid: stop request";
// terminate headless droid
terminateDroid();
} else if (request.action().compare("bb.action.CHOICE") == 0) {
int choice = QString(request.data()).toInt();
qDebug() << "XandOsDroid: received user choice: " << choice;
// mark the user selection in the grid matrix and update the
// game matrix state
select(choice, 1);
// verify there are still moves available
if (availableChoices().isEmpty()) {
qDebug() << "XandOsDroid: game over!";
terminateDroid();
}
// Check whether you have any two in a row sequences
int nextM = nextMove(-2);
// If no, than block the user based on his possible selections for
// a consecutive sequence
if (-1 == nextM) {
nextM = nextMove(1);
}
qDebug() << "XandOsDroid: droid selection: " << nextM;
// send your next selection to the UI.
sendSelection(nextM);
} else {
qDebug() << "XandOsDroid : unknown service request "
<< request.action();
}
}
