/**
* Creates a game instance and creates a multisocket.
*
* @param portNumber port number for multisocket to use.
* @param questionDatabase the database to get questions from
* @param gameServer the server that started this game instance
*/
public GameInstance(int portNumber, QuestionDatabase questionDatabase, GameServer gameServer) {
this.portNumber = portNumber;
this.gameServer = gameServer;
this.questionDatabase = questionDatabase;
numberOfQuestions = questionDatabase.getDatabaseSize();
try {
// setup incoming multicast
multiSocket = new MulticastSocket(portNumber);
address = InetAddress.getByName(GROUP_IP);
multiSocket.joinGroup(address);
} catch (IOException e) {
}
}
/**
* Get a random question form the database.
*
* @return A question that has not been asked since the last question reset.
*/
public String getNewQuestion() {
int questionNumber = 0;
boolean numberFound = false;
while (numberFound == false) {
// get a random question number
questionNumber = (int) (Math.random() * numberOfQuestions);
// check if question already asked
if (!questionsAsked.contains(questionNumber)) {
numberFound = true;
questionsAsked.add(questionNumber);
// reset questions asked if all have been asked
if (questionsAsked.size() == numberOfQuestions) {
questionsAsked.clear();
}
}
}
return questionDatabase.getQuestion(questionNumber);
}