/// <summary>
/// Authenticates the Game Center local player. Call this as soon as the game is initialized.
/// <br></br>
/// Raises the LocalPlayerAuthenticated and LocalPlayerAuthencationFailed events on completion.
/// <br></br>
/// Once the local player is authenticated, you can get the <c>LocalPlayer</c> property.
/// </summary>
public static void AuthenticateLocalPlayer()
{
var gkLocalPlayer = GKLocalPlayer.LocalPlayer();
if (gkLocalPlayer.RespondsToSelector("authenticateHandler"))
{
// ios 6.0 new call
gkLocalPlayer.authenticateHandler = delegate(UIViewController viewController, NSError error) {
if (viewController != null)
{
_localPlayer = null;
UIApplication.deviceRootViewController.PresentViewController(viewController, true, null);
}
else
{
_CheckLocalPlayer(error);
error = null;
}
};
}
else
{
// deprecated in ios 6.0
gkLocalPlayer.Authenticate(delegate(NSError error) {
_CheckLocalPlayer(error);
error = null;
});
}
}
public void Register()
{
if (_registered)
{
return;
}
GKLocalPlayer.LocalPlayer().RegisterListener(this);
_registered = true;
}
private static void _CheckLocalPlayer(NSError error)
{
var gkLocalPlayer = GKLocalPlayer.LocalPlayer();
if (gkLocalPlayer.authenticated)
{
// create wrapper and dispatch event
_localPlayer = NSObjectWrapper.CreateWrapper(typeof(LocalPlayer), gkLocalPlayer, gkLocalPlayer.playerID) as LocalPlayer;
if (_localPlayerAuthenticatedHandlers != null)
{
_localPlayerAuthenticatedHandlers(null, EventArgs.Empty);
}
}
else
{
// set it to null and dispatch event
_localPlayer = null;
if (_localPlayerAuthenticationFailedHandlers != null)
{
_localPlayerAuthenticationFailedHandlers(null, new U3DXTErrorEventArgs(error));
}
}
}