private void CalculateMastery(bool refresh)
{
Progress.Reset(Snapshot.AchievementGameCount);
Progress.IsEnabled = true;
var unixEpoch = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);
var masteryStats = new List <MasteryStats>();
var mostAwardedAchievements = new List <GameStatsViewModel.AchievementStats>();
var achievementIds = new List <int>(Snapshot.GamesWithAchievements);
achievementIds.Sort();
foreach (var gameId in achievementIds)
{
Progress.Label = "Processing game " + gameId;
Progress.Current++;
if (!Progress.IsEnabled)
{
break;
}
string gameName = "";
int created = Int32.MaxValue;
int consoleId = 0;
using (var stream = File.OpenRead(Path.Combine(_settings.DumpDirectory, gameId + ".json")))
{
var json = new JsonObject(stream);
var patchData = json.GetField("PatchData").ObjectValue;
var achievements = patchData.GetField("Achievements");
if (achievements.Type != JsonFieldType.ObjectArray)
{
continue;
}
if (!achievements.ObjectArrayValue.Any(a => a.GetField("Flags").IntegerValue != 5))
{
continue;
}
foreach (var achievement in achievements.ObjectArrayValue)
{
var createdValue = achievement.GetField("Created").IntegerValue.GetValueOrDefault();
if (createdValue > 0 && createdValue < created)
{
created = createdValue;
}
}
gameName = patchData.GetField("Title").StringValue;
consoleId = patchData.GetField("ConsoleID").IntegerValue.GetValueOrDefault();
}
var gameStats = new GameStatsViewModel()
{
GameId = gameId
};
Debug.WriteLine(String.Format("{0} processing {1}", DateTime.Now, gameId));
gameStats.LoadGame(refresh);
if (!gameStats.Achievements.Any())
{
continue;
}
var twentyFifthPlayers = gameStats.NumberOfPlayers * 1 / 4;
var fiftiethPlayers = gameStats.NumberOfPlayers / 2;
var seventyFifthPlayers = gameStats.NumberOfPlayers * 3 / 4;
var ninetiethPlayers = gameStats.NumberOfPlayers * 9 / 10;
var twentyFifthPercentilePoints = 0;
var fiftiethPercentilePoints = 0;
var seventyFifthPercentilePoints = 0;
var ninetiethPercentilePoints = 0;
var ninetiethPercentileAchievements = 0;
foreach (var achievement in gameStats.Achievements)
{
if (achievement.EarnedBy > twentyFifthPlayers)
{
twentyFifthPercentilePoints += achievement.Points;
if (achievement.EarnedBy >= fiftiethPlayers)
{
fiftiethPercentilePoints += achievement.Points;
if (achievement.EarnedBy >= seventyFifthPlayers)
{
seventyFifthPercentilePoints += achievement.Points;
if (achievement.EarnedBy >= ninetiethPlayers)
{
ninetiethPercentilePoints += achievement.Points;
ninetiethPercentileAchievements++;
}
}
}
}
int i = 0;
while (i < mostAwardedAchievements.Count)
{
if (achievement.EarnedBy > mostAwardedAchievements[i].EarnedBy)
{
break;
}
++i;
}
if (i < 20)
{
if (mostAwardedAchievements.Count == 20)
{
mostAwardedAchievements.RemoveAt(19);
}
achievement.Description = gameName;
mostAwardedAchievements.Insert(i, achievement);
}
}
var standardDeviation = 0.0;
var mean = 0.0;
if (gameStats.HardcoreMasteredUserCount > 0)
{
var times = new List <double>();
foreach (var user in gameStats.TopUsers)
{
if (user.PointsEarned == gameStats.TotalPoints && user.IsEstimateReliable)
{
times.Add(user.GameTime.TotalMinutes);
}
}
if (times.Count > 0)
{
mean = times.Average();
if (gameStats.HardcoreMasteredUserCountEstimated)
{
standardDeviation = StandardDeviation.CalculateFromSample(times);
}
else
{
standardDeviation = StandardDeviation.Calculate(times);
}
}
}
var minutesPerPoint = new List <float>();
foreach (var user in gameStats.TopUsers)
{
if (user.PointsEarned > 0)
{
minutesPerPoint.Add((float)user.GameTime.TotalMinutes / user.PointsEarned);
}
}
minutesPerPoint.Sort();
var stats = new MasteryStats
{
GameId = gameStats.GameId,
GameName = gameStats.DialogTitle.Substring(12).Trim(),
ConsoleId = consoleId,
Created = unixEpoch + TimeSpan.FromSeconds(created),
Points = gameStats.TotalPoints,
NumPlayers = gameStats.NumberOfPlayers,
HardcoreMasteredUserCount = gameStats.HardcoreMasteredUserCount,
MeanTimeToMaster = mean,
StdDevTimeToMaster = standardDeviation,
MinutesPerPointToMaster = mean / gameStats.TotalPoints,
MinutesPerPoint = minutesPerPoint.Count > 0 ? minutesPerPoint[minutesPerPoint.Count / 2] : 0,
TwentyFifthPercentilePoints = twentyFifthPercentilePoints,
FiftiethPercentilePoints = fiftiethPercentilePoints,
SeventyFifthPercentilePoints = seventyFifthPercentilePoints,
NintiethPercentilePoints = ninetiethPercentilePoints,
NintiethPercentileAchievements = ninetiethPercentileAchievements,
};
if (gameStats.NumberOfPlayers == 0)
{
stats.PlayersPerDay = 0.0;
}
else
{
var age = (DateTime.Now - stats.Created).TotalDays;
stats.PlayersPerDay = gameStats.NumberOfPlayers / age;
}
masteryStats.Add(stats);
}
masteryStats.Sort((l, r) =>
{
if (l.MinutesPerPoint < r.MinutesPerPoint)
{
return(-1);
}
else if (l.MinutesPerPoint > r.MinutesPerPoint)
{
return(1);
}
return(0);
});
_backgroundWorkerService.InvokeOnUiThread(() =>
{
Results.Clear();
foreach (var stats in masteryStats)
{
Results.Add(stats);
}
});
_mostAwardedAchievements = mostAwardedAchievements;
Progress.Label = String.Empty;
}