Beginning iOS Game Center and Game Kit: For iPhone, iPad, and iPod touch

Auto-Matching

Auto-matching is a great feature provided to you for no extra work when working with Game Center. Game Center keeps an online queue of people who are waiting to join a multiplayer game in your app. If you do not fill up a new match request with all invited friends, the auto-matching feature will automatically populate the remaining spots with other unmatched players online.

You can filter down the auto-matched results using player groups and player attributes, which will be discussed later in this chapter. In addition, you can query the activity of any live player group to see what the average wait time is to be paired up with a new match; this is also discussed more in a later section.