/// <summary>
/// Flushes all the entities in the out queue from the matchmaker.
/// </summary>
/// <returns>The groups removed from the queue.</returns>
private IEnumerable <QueueGroup> FlushOutQueue()
{
Queue <QueueGroup> toInform = new Queue <QueueGroup>();
lock (outQueue)
{
while (outQueue.Count > 0)
{
RankingMatchmakerQueueTask <T> task = outQueue.Dequeue();
//Get group and check it exists
QueueGroup queueGroup = queue.FirstOrDefault((g) => g.task == task);
if (queueGroup != null)
{
//Remove the group
queue.Remove(queueGroup);
//Remove all matches it had so we don't consider it in matchmaking
foreach (QueueGroup other in queue)
{
other.matches.Remove(new Match {
other = queueGroup
});
}
//If removed, inform it that it was cancelled
toInform.Enqueue(queueGroup);
}
}
}
return(toInform);
}
/// <inheritdoc/>
public IMatchmakerQueueTask <T> EnqueueGroup(EntityGroup <T> entities, EventHandler <MatchmakingStateChangedEventArgs <T> > callback = null)
{
RankingMatchmakerQueueTask <T> task = new RankingMatchmakerQueueTask <T>(this, entities, callback);
QueueGroup queueGroup = new QueueGroup {
task = task
};
MatchRankingContext <T> context = new MatchRankingContext <T>(DiscardThreshold);
//Look at all other entities in queue and rate them
lock (queueSnapshot)
AddMatchesToQueueGroup(queueGroup, queueSnapshot, context);
lock (inQueue)
{
//Rate those to be added in future
AddMatchesToQueueGroup(queueGroup, inQueue, context);
//Add to in queue for next tick/flush
inQueue.Enqueue(queueGroup);
}
return(task);
}
/// <summary>
/// Cancels a given task
/// </summary>
/// <param name="task">The task to cancel.</param>
internal void Cancel(RankingMatchmakerQueueTask <T> task)
{
//Add to out queue for next tick/flush
lock (outQueue)
outQueue.Enqueue(task);
}