private Task <IEnumerable <LeaderboardScore> > InternalGetScores(string leaderboardCode, int count, bool socialOnly, bool centered)
{
var tcs = new TaskCompletionSource <IEnumerable <LeaderboardScore> >();
UIKit.UIApplication.SharedApplication.InvokeOnMainThread(async() =>
{
var result = Enumerable.Empty <LeaderboardScore>();
var leaderboards = await GKLeaderboard.LoadLeaderboardsAsync() ?? new GKLeaderboard[] { };
var selectedLeaderboard = leaderboards.FirstOrDefault(l => l.Identifier == leaderboardCode);
if (selectedLeaderboard != null)
{
selectedLeaderboard.PlayerScope = socialOnly ? GKLeaderboardPlayerScope.FriendsOnly : GKLeaderboardPlayerScope.Global;
selectedLeaderboard.Range = new Foundation.NSRange(1, count);
var scores = await selectedLeaderboard.LoadScoresAsync();
if (centered && selectedLeaderboard.LocalPlayerScore != null)
{
var playerRank = selectedLeaderboard.LocalPlayerScore.Rank;
var fromIndex = playerRank - (count / 2);
fromIndex = fromIndex < 1 ? 1 : fromIndex;
selectedLeaderboard.Range = new Foundation.NSRange(fromIndex, count);
scores = await selectedLeaderboard.LoadScoresAsync();
}
result = await IOSMapper.MapLeaderBoards(scores);
}
tcs.SetResult(result);
});
return(tcs.Task);
}
/// <summary>
/// Gets the top scores from leaderboard.
/// </summary>
/// <param name="leaderboardCode">The leaderboard code.</param>
/// <returns>
/// Task
/// </returns>
public async Task <Dictionary <string, List <WaveEngine.Social.LeaderboardScore> > > GetTopScoresFromLeaderboard(string leaderboardCode)
{
var scores = new Dictionary <string, List <GKScore> >();
var leaderboards = await GKLeaderboard.LoadLeaderboardsAsync() ?? new GKLeaderboard[]
{
};
foreach (var leaderboard in leaderboards)
{
var leaderboardScores = await leaderboard.LoadScoresAsync() ?? new GKScore[]
{
};
var leaderboardScoresList = leaderboardScores.ToList();
var boardId = leaderboard.Identifier;
scores.Add(boardId, leaderboardScoresList);
}
var waveScores = Mapper.MapLeaderBoards(scores);
return(waveScores);
}