IW4M-Admin/Plugins/Stats/Helpers/StatManager.cs
RaidMax 40f1697c97 fix damage event not including log line
complete initiall implementation for "2FA"
issue #52
issue #66
2019-02-16 15:04:40 -06:00

1279 lines
52 KiB
C#

using IW4MAdmin.Plugins.Stats.Cheat;
using IW4MAdmin.Plugins.Stats.Models;
using IW4MAdmin.Plugins.Stats.Web.Dtos;
using Microsoft.EntityFrameworkCore;
using SharedLibraryCore;
using SharedLibraryCore.Database;
using SharedLibraryCore.Database.Models;
using SharedLibraryCore.Helpers;
using SharedLibraryCore.Interfaces;
using SharedLibraryCore.Objects;
using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
using System.Text.RegularExpressions;
using System.Threading;
using System.Threading.Tasks;
namespace IW4MAdmin.Plugins.Stats.Helpers
{
public class StatManager
{
private ConcurrentDictionary<long, ServerStats> Servers;
private ILogger Log;
private readonly IManager Manager;
private readonly SemaphoreSlim OnProcessingPenalty;
private readonly SemaphoreSlim OnProcessingSensitive;
public StatManager(IManager mgr)
{
Servers = new ConcurrentDictionary<long, ServerStats>();
Log = mgr.GetLogger(0);
Manager = mgr;
OnProcessingPenalty = new SemaphoreSlim(1, 1);
OnProcessingSensitive = new SemaphoreSlim(1, 1);
}
public EFClientStatistics GetClientStats(int clientId, long serverId)
{
return Servers[serverId].PlayerStats[clientId];
}
public static Expression<Func<EFRating, bool>> GetRankingFunc(long? serverId = null)
{
var fifteenDaysAgo = DateTime.UtcNow.AddDays(-15);
return (r) => r.ServerId == serverId &&
r.When > fifteenDaysAgo &&
r.RatingHistory.Client.Level != EFClient.Permission.Banned &&
r.Newest &&
r.ActivityAmount >= Plugin.Config.Configuration().TopPlayersMinPlayTime;
}
/// <summary>
/// gets a ranking across all servers for given client id
/// </summary>
/// <param name="clientId">client id of the player</param>
/// <returns></returns>
public static async Task<int> GetClientOverallRanking(int clientId)
{
using (var context = new DatabaseContext(true))
{
var clientPerformance = await context.Set<EFRating>()
.Where(r => r.RatingHistory.ClientId == clientId)
.Where(r => r.ServerId == null)
.Where(r => r.Newest)
.Select(r => r.Performance)
.FirstOrDefaultAsync();
if (clientPerformance != 0)
{
var iqClientRanking = context.Set<EFRating>()
.Where(r => r.RatingHistory.ClientId != clientId)
.Where(r => r.Performance > clientPerformance)
.Where(GetRankingFunc());
return await iqClientRanking.CountAsync() + 1;
}
return 0;
}
}
public async Task<List<TopStatsInfo>> GetTopStats(int start, int count)
{
using (var context = new DatabaseContext(true))
{
// setup the query for the clients within the given rating range
var iqClientRatings = (from rating in context.Set<EFRating>()
.Where(GetRankingFunc())
select new
{
rating.RatingHistory.ClientId,
rating.RatingHistory.Client.CurrentAlias.Name,
rating.RatingHistory.Client.LastConnection,
rating.Performance,
})
.OrderByDescending(c => c.Performance)
.Skip(start)
.Take(count);
#if DEBUG == true
var clientRatingsSql = iqClientRatings.ToSql();
#endif
// materialized list
var clientRatings = await iqClientRatings.ToListAsync();
// get all the unique client ids that are in the top stats
var clientIds = clientRatings
.GroupBy(r => r.ClientId)
.Select(r => r.First().ClientId)
.ToList();
var iqRatingInfo = from rating in context.Set<EFRating>()
where clientIds.Contains(rating.RatingHistory.ClientId)
where rating.ServerId == null
select new
{
rating.Ranking,
rating.Performance,
rating.RatingHistory.ClientId,
rating.When
};
#if DEBUG == true
var ratingQuery = iqRatingInfo.ToSql();
#endif
var ratingInfo = (await iqRatingInfo.ToListAsync())
.GroupBy(r => r.ClientId)
.Select(grp => new
{
grp.Key,
Ratings = grp.Select(r => new { r.Performance, r.Ranking, r.When })
});
var iqStatsInfo = (from stat in context.Set<EFClientStatistics>()
where clientIds.Contains(stat.ClientId)
group stat by stat.ClientId into s
select new
{
ClientId = s.Key,
Kills = s.Sum(c => c.Kills),
Deaths = s.Sum(c => c.Deaths),
KDR = s.Sum(c => (c.Kills / (double)(c.Deaths == 0 ? 1 : c.Deaths)) * c.TimePlayed) / s.Sum(c => c.TimePlayed),
TotalTimePlayed = s.Sum(c => c.TimePlayed)
});
#if DEBUG == true
var statsInfoSql = iqStatsInfo.ToSql();
#endif
var topPlayers = await iqStatsInfo.ToListAsync();
var clientRatingsDict = clientRatings.ToDictionary(r => r.ClientId);
var finished = topPlayers.Select(s => new TopStatsInfo()
{
ClientId = s.ClientId,
Deaths = s.Deaths,
Kills = s.Kills,
KDR = Math.Round(s.KDR, 2),
LastSeen = Utilities.GetTimePassed(clientRatingsDict[s.ClientId].LastConnection, false),
Name = clientRatingsDict[s.ClientId].Name,
Performance = Math.Round(clientRatingsDict[s.ClientId].Performance, 2),
RatingChange = ratingInfo.First(r => r.Key == s.ClientId).Ratings.First().Ranking - ratingInfo.First(r => r.Key == s.ClientId).Ratings.Last().Ranking,
PerformanceHistory = ratingInfo.First(r => r.Key == s.ClientId).Ratings.Count() > 1 ?
ratingInfo.First(r => r.Key == s.ClientId).Ratings.OrderBy(r => r.When).Select(r => r.Performance).ToList() :
new List<double>() { clientRatingsDict[s.ClientId].Performance, clientRatingsDict[s.ClientId].Performance },
TimePlayed = Math.Round(s.TotalTimePlayed / 3600.0, 1).ToString("#,##0"),
})
.OrderByDescending(r => r.Performance)
.ToList();
// set the ranking numerically
int i = start + 1;
foreach (var stat in finished)
{
stat.Ranking = i;
i++;
}
return finished;
}
}
/// <summary>
/// Add a server to the StatManager server pool
/// </summary>
/// <param name="sv"></param>
public void AddServer(Server sv)
{
// insert the server if it does not exist
try
{
long serverId = GetIdForServer(sv).Result;
EFServer server;
using (var ctx = new DatabaseContext(disableTracking: true))
{
var serverSet = ctx.Set<EFServer>();
// get the server from the database if it exists, otherwise create and insert a new one
server = serverSet.FirstOrDefault(s => s.ServerId == serverId);
// the server might be using legacy server id
if (server == null)
{
server = serverSet.FirstOrDefault(s => s.EndPoint == sv.ToString());
if (server != null)
{
// this provides a way to identify legacy server entries
server.EndPoint = sv.ToString();
ctx.Update(server);
ctx.SaveChanges();
}
}
// server has never been added before
if (server == null)
{
server = new EFServer()
{
Port = sv.GetPort(),
EndPoint = sv.ToString(),
ServerId = serverId
};
server = serverSet.Add(server).Entity;
// this doesn't need to be async as it's during initialization
ctx.SaveChanges();
}
}
// check to see if the stats have ever been initialized
var serverStats = InitializeServerStats(server.ServerId);
Servers.TryAdd(serverId, new ServerStats(server, serverStats)
{
IsTeamBased = sv.Gametype != "dm"
});
}
catch (Exception e)
{
Log.WriteError($"{Utilities.CurrentLocalization.LocalizationIndex["PLUGIN_STATS_ERROR_ADD"]} - {e.Message}");
Log.WriteDebug(e.GetExceptionInfo());
}
}
/// <summary>
/// Add Player to the player stats
/// </summary>
/// <param name="pl">Player to add/retrieve stats for</param>
/// <returns>EFClientStatistic of specified player</returns>
public async Task<EFClientStatistics> AddPlayer(EFClient pl)
{
await OnProcessingSensitive.WaitAsync();
try
{
long serverId = await GetIdForServer(pl.CurrentServer);
if (!Servers.ContainsKey(serverId))
{
Log.WriteError($"[Stats::AddPlayer] Server with id {serverId} could not be found");
return null;
}
var playerStats = Servers[serverId].PlayerStats;
var detectionStats = Servers[serverId].PlayerDetections;
if (playerStats.ContainsKey(pl.ClientId))
{
Log.WriteWarning($"Duplicate ClientId in stats {pl.ClientId}");
return playerStats[pl.ClientId];
}
// get the client's stats from the database if it exists, otherwise create and attach a new one
// if this fails we want to throw an exception
EFClientStatistics clientStats;
using (var ctx = new DatabaseContext(disableTracking: true))
{
var clientStatsSet = ctx.Set<EFClientStatistics>();
clientStats = clientStatsSet
.Include(cl => cl.HitLocations)
.FirstOrDefault(c => c.ClientId == pl.ClientId && c.ServerId == serverId);
if (clientStats == null)
{
clientStats = new EFClientStatistics()
{
Active = true,
ClientId = pl.ClientId,
Deaths = 0,
Kills = 0,
ServerId = serverId,
Skill = 0.0,
SPM = 0.0,
EloRating = 200.0,
HitLocations = Enum.GetValues(typeof(IW4Info.HitLocation)).OfType<IW4Info.HitLocation>().Select(hl => new EFHitLocationCount()
{
Active = true,
HitCount = 0,
Location = hl
}).ToList()
};
// insert if they've not been added
clientStats = clientStatsSet.Add(clientStats).Entity;
await ctx.SaveChangesAsync();
if (!playerStats.TryAdd(clientStats.ClientId, clientStats))
{
Log.WriteWarning("Adding new client to stats failed");
}
}
else
{
if (!playerStats.TryAdd(clientStats.ClientId, clientStats))
{
Log.WriteWarning("Adding pre-existing client to stats failed");
}
}
// migration for previous existing stats
if (clientStats.HitLocations.Count == 0)
{
clientStats.HitLocations = Enum.GetValues(typeof(IW4Info.HitLocation)).OfType<IW4Info.HitLocation>()
.Select(hl => new EFHitLocationCount()
{
Active = true,
HitCount = 0,
Location = hl
})
.ToList();
ctx.Update(clientStats);
await ctx.SaveChangesAsync();
}
// for stats before rating
if (clientStats.EloRating == 0.0)
{
clientStats.EloRating = clientStats.Skill;
}
if (clientStats.RollingWeightedKDR == 0)
{
clientStats.RollingWeightedKDR = clientStats.KDR;
}
// set these on connecting
clientStats.LastActive = DateTime.UtcNow;
clientStats.LastStatCalculation = DateTime.UtcNow;
clientStats.SessionScore = pl.Score;
clientStats.LastScore = pl.Score;
if (!detectionStats.TryAdd(pl.ClientId, new Cheat.Detection(Log, clientStats)))
{
Log.WriteWarning("Could not add client to detection");
}
pl.CurrentServer.Logger.WriteInfo($"Adding {pl} to stats");
}
return clientStats;
}
catch (Exception ex)
{
Log.WriteWarning("Could not add client to stats");
Log.WriteDebug(ex.GetExceptionInfo());
}
finally
{
OnProcessingSensitive.Release(1);
}
return null;
}
/// <summary>
/// Perform stat updates for disconnecting client
/// </summary>
/// <param name="pl">Disconnecting client</param>
/// <returns></returns>
public async Task RemovePlayer(EFClient pl)
{
pl.CurrentServer.Logger.WriteInfo($"Removing {pl} from stats");
long serverId = await GetIdForServer(pl.CurrentServer);
var playerStats = Servers[serverId].PlayerStats;
var detectionStats = Servers[serverId].PlayerDetections;
var serverStats = Servers[serverId].ServerStatistics;
if (!playerStats.ContainsKey(pl.ClientId))
{
pl.CurrentServer.Logger.WriteWarning($"Client disconnecting not in stats {pl}");
// remove the client from the stats dictionary as they're leaving
playerStats.TryRemove(pl.ClientId, out EFClientStatistics removedValue1);
detectionStats.TryRemove(pl.ClientId, out Detection removedValue2);
return;
}
// get individual client's stats
var clientStats = playerStats[pl.ClientId];
// remove the client from the stats dictionary as they're leaving
playerStats.TryRemove(pl.ClientId, out EFClientStatistics removedValue3);
detectionStats.TryRemove(pl.ClientId, out Detection removedValue4);
// sync their stats before they leave
clientStats = UpdateStats(clientStats);
using (var ctx = new DatabaseContext(disableTracking: true))
{
ctx.Update(clientStats);
await ctx.SaveChangesAsync();
}
// increment the total play time
serverStats.TotalPlayTime += pl.ConnectionLength;
}
public void AddDamageEvent(string eventLine, int attackerClientId, int victimClientId, long serverId)
{
// todo: maybe do something with this
//string regex = @"^(D);(.+);([0-9]+);(allies|axis);(.+);([0-9]+);(allies|axis);(.+);(.+);([0-9]+);(.+);(.+)$";
//var match = Regex.Match(eventLine, regex, RegexOptions.IgnoreCase);
//if (match.Success)
//{
// // this gives us what team the player is on
// var attackerStats = Servers[serverId].PlayerStats[attackerClientId];
// var victimStats = Servers[serverId].PlayerStats[victimClientId];
// IW4Info.Team victimTeam = (IW4Info.Team)Enum.Parse(typeof(IW4Info.Team), match.Groups[4].ToString(), true);
// IW4Info.Team attackerTeam = (IW4Info.Team)Enum.Parse(typeof(IW4Info.Team), match.Groups[7].ToString(), true);
// attackerStats.Team = attackerTeam;
// victimStats.Team = victimTeam;
//}
}
/// <summary>
/// Process stats for kill event
/// </summary>
/// <returns></returns>
public async Task AddScriptHit(bool isDamage, DateTime time, EFClient attacker, EFClient victim, long serverId, string map, string hitLoc, string type,
string damage, string weapon, string killOrigin, string deathOrigin, string viewAngles, string offset, string isKillstreakKill, string Ads,
string fraction, string visibilityPercentage, string snapAngles)
{
Vector3 vDeathOrigin = null;
Vector3 vKillOrigin = null;
Vector3 vViewAngles = null;
try
{
vDeathOrigin = Vector3.Parse(deathOrigin);
vKillOrigin = Vector3.Parse(killOrigin);
vViewAngles = Vector3.Parse(viewAngles).FixIW4Angles();
}
catch (FormatException)
{
Log.WriteWarning("Could not parse kill or death origin or viewangle vectors");
Log.WriteDebug($"Kill - {killOrigin} Death - {deathOrigin} ViewAngle - {viewAngles}");
await AddStandardKill(attacker, victim);
return;
}
var snapshotAngles = new List<Vector3>();
try
{
foreach (string angle in snapAngles.Split(':', StringSplitOptions.RemoveEmptyEntries))
{
snapshotAngles.Add(Vector3.Parse(angle).FixIW4Angles());
}
}
catch (FormatException)
{
Log.WriteWarning("Could not parse snapshot angles");
return;
}
var hit = new EFClientKill()
{
Active = true,
AttackerId = attacker.ClientId,
VictimId = victim.ClientId,
ServerId = serverId,
Map = ParseEnum<IW4Info.MapName>.Get(map, typeof(IW4Info.MapName)),
DeathOrigin = vDeathOrigin,
KillOrigin = vKillOrigin,
DeathType = ParseEnum<IW4Info.MeansOfDeath>.Get(type, typeof(IW4Info.MeansOfDeath)),
Damage = Int32.Parse(damage),
HitLoc = ParseEnum<IW4Info.HitLocation>.Get(hitLoc, typeof(IW4Info.HitLocation)),
Weapon = ParseEnum<IW4Info.WeaponName>.Get(weapon, typeof(IW4Info.WeaponName)),
ViewAngles = vViewAngles,
TimeOffset = Int64.Parse(offset),
When = time,
IsKillstreakKill = isKillstreakKill[0] != '0',
AdsPercent = float.Parse(Ads),
Fraction = double.Parse(fraction),
VisibilityPercentage = double.Parse(visibilityPercentage),
IsKill = !isDamage,
AnglesList = snapshotAngles
};
if ((hit.DeathType == IW4Info.MeansOfDeath.MOD_SUICIDE &&
hit.Damage == 100000) || hit.HitLoc == IW4Info.HitLocation.shield)
{
// suicide by switching teams so let's not count it against them
return;
}
if (!isDamage)
{
await AddStandardKill(attacker, victim);
}
if (hit.IsKillstreakKill)
{
return;
}
// incase the add palyer event get delayed
if (!Servers[serverId].PlayerStats.ContainsKey(attacker.ClientId))
{
await AddPlayer(attacker);
}
var clientDetection = Servers[serverId].PlayerDetections[attacker.ClientId];
var clientStats = Servers[serverId].PlayerStats[attacker.ClientId];
using (var ctx = new DatabaseContext(disableTracking: true))
{
ctx.Set<EFClientStatistics>().Update(clientStats);
await ctx.SaveChangesAsync();
}
// increment their hit count
if (hit.DeathType == IW4Info.MeansOfDeath.MOD_PISTOL_BULLET ||
hit.DeathType == IW4Info.MeansOfDeath.MOD_RIFLE_BULLET ||
hit.DeathType == IW4Info.MeansOfDeath.MOD_HEAD_SHOT)
{
clientStats.HitLocations.Single(hl => hl.Location == hit.HitLoc).HitCount += 1;
}
using (var ctx = new DatabaseContext())
{
await OnProcessingPenalty.WaitAsync();
try
{
if (Plugin.Config.Configuration().StoreClientKills)
{
ctx.Set<EFClientKill>().Add(hit);
}
if (Plugin.Config.Configuration().EnableAntiCheat)
{
if (clientDetection.QueuedHits.Count > Detection.QUEUE_COUNT)
{
while (clientDetection.QueuedHits.Count > 0)
{
clientDetection.QueuedHits = clientDetection.QueuedHits.OrderBy(_hits => _hits.TimeOffset).ToList();
var oldestHit = clientDetection.QueuedHits.First();
clientDetection.QueuedHits.RemoveAt(0);
ApplyPenalty(clientDetection.ProcessHit(oldestHit, isDamage), clientDetection, attacker, ctx);
}
}
else
{
clientDetection.QueuedHits.Add(hit);
}
ApplyPenalty(clientDetection.ProcessTotalRatio(clientStats), clientDetection, attacker, ctx);
}
ctx.Set<EFHitLocationCount>().UpdateRange(clientStats.HitLocations);
await ctx.SaveChangesAsync();
}
catch (Exception ex)
{
Log.WriteError("Could not save hit or AC info");
Log.WriteDebug(ex.GetExceptionInfo());
}
OnProcessingPenalty.Release(1);
}
}
void ApplyPenalty(DetectionPenaltyResult penalty, Detection clientDetection, EFClient attacker, DatabaseContext ctx)
{
switch (penalty.ClientPenalty)
{
case Penalty.PenaltyType.Ban:
if (attacker.Level == EFClient.Permission.Banned)
{
break;
}
attacker.Ban(Utilities.CurrentLocalization.LocalizationIndex["PLUGIN_STATS_CHEAT_DETECTED"], new EFClient()
{
ClientId = 1,
AdministeredPenalties = new List<EFPenalty>()
{
new EFPenalty()
{
AutomatedOffense = penalty.Type == Cheat.Detection.DetectionType.Bone ?
$"{penalty.Type}-{(int)penalty.Location}-{Math.Round(penalty.Value, 2)}@{penalty.HitCount}" :
$"{penalty.Type}-{Math.Round(penalty.Value, 2)}@{penalty.HitCount}",
}
},
Level = EFClient.Permission.Console,
CurrentServer = attacker.CurrentServer,
}, false);
if (clientDetection.Tracker.HasChanges)
{
SaveTrackedSnapshots(clientDetection, ctx);
}
break;
case Penalty.PenaltyType.Flag:
if (attacker.Level != EFClient.Permission.User)
{
break;
}
string flagReason = penalty.Type == Cheat.Detection.DetectionType.Bone ?
$"{penalty.Type}-{(int)penalty.Location}-{Math.Round(penalty.Value, 2)}@{penalty.HitCount}" :
$"{penalty.Type}-{Math.Round(penalty.Value, 2)}@{penalty.HitCount}";
attacker.Flag(flagReason, new EFClient()
{
ClientId = 1,
Level = EFClient.Permission.Console,
CurrentServer = attacker.CurrentServer,
});
if (clientDetection.Tracker.HasChanges)
{
SaveTrackedSnapshots(clientDetection, ctx);
}
break;
}
}
void SaveTrackedSnapshots(Cheat.Detection clientDetection, DatabaseContext ctx)
{
// todo: why does this cause duplicate primary key
var change = clientDetection.Tracker.GetNextChange();
while ((change = clientDetection.Tracker.GetNextChange()) != default(EFACSnapshot))
{
if (change.HitOrigin.Vector3Id > 0)
{
change.HitOriginId = change.HitOrigin.Vector3Id;
ctx.Attach(change.HitOrigin);
}
else if (change.HitOrigin.Vector3Id == 0)
{
ctx.Add(change.HitOrigin);
}
if (change.HitDestination.Vector3Id > 0)
{
change.HitDestinationId = change.HitDestination.Vector3Id;
ctx.Attach(change.HitDestination);
}
else if (change.HitDestination.Vector3Id == 0)
{
ctx.Add(change.HitOrigin);
}
if (change.CurrentViewAngle.Vector3Id > 0)
{
change.CurrentViewAngleId = change.CurrentViewAngle.Vector3Id;
ctx.Attach(change.CurrentViewAngle);
}
else if (change.CurrentViewAngle.Vector3Id == 0)
{
ctx.Add(change.HitOrigin);
}
if (change.LastStrainAngle.Vector3Id > 0)
{
change.LastStrainAngleId = change.LastStrainAngle.Vector3Id;
ctx.Attach(change.LastStrainAngle);
}
else if (change.LastStrainAngle.Vector3Id == 0)
{
ctx.Add(change.HitOrigin);
}
ctx.Add(change);
}
}
public async Task AddStandardKill(EFClient attacker, EFClient victim)
{
long serverId = await GetIdForServer(attacker.CurrentServer);
EFClientStatistics attackerStats = null;
if (!Servers[serverId].PlayerStats.ContainsKey(attacker.ClientId))
{
attackerStats = await AddPlayer(attacker);
}
else
{
attackerStats = Servers[serverId].PlayerStats[attacker.ClientId];
}
EFClientStatistics victimStats = null;
if (!Servers[serverId].PlayerStats.ContainsKey(victim.ClientId))
{
victimStats = await AddPlayer(victim);
}
else
{
victimStats = Servers[serverId].PlayerStats[victim.ClientId];
}
#if DEBUG
Log.WriteDebug("Calculating standard kill");
#endif
// update the total stats
Servers[serverId].ServerStatistics.TotalKills += 1;
await Sync(attacker.CurrentServer);
// this happens when the round has changed
if (attackerStats.SessionScore == 0)
{
attackerStats.LastScore = 0;
}
if (victimStats.SessionScore == 0)
{
victimStats.LastScore = 0;
}
attackerStats.SessionScore = attacker.Score;
victimStats.SessionScore = victim.Score;
// calculate for the clients
CalculateKill(attackerStats, victimStats);
// this should fix the negative SPM
// updates their last score after being calculated
attackerStats.LastScore = attacker.Score;
victimStats.LastScore = victim.Score;
// show encouragement/discouragement
string streakMessage = (attackerStats.ClientId != victimStats.ClientId) ?
StreakMessage.MessageOnStreak(attackerStats.KillStreak, attackerStats.DeathStreak) :
StreakMessage.MessageOnStreak(-1, -1);
if (streakMessage != string.Empty)
{
attacker.Tell(streakMessage);
}
// fixme: why?
if (double.IsNaN(victimStats.SPM) || double.IsNaN(victimStats.Skill))
{
Log.WriteDebug($"[StatManager::AddStandardKill] victim SPM/SKILL {victimStats.SPM} {victimStats.Skill}");
victimStats.SPM = 0.0;
victimStats.Skill = 0.0;
}
if (double.IsNaN(attackerStats.SPM) || double.IsNaN(attackerStats.Skill))
{
Log.WriteDebug($"[StatManager::AddStandardKill] attacker SPM/SKILL {victimStats.SPM} {victimStats.Skill}");
attackerStats.SPM = 0.0;
attackerStats.Skill = 0.0;
}
// update their performance
#if !DEBUG
if ((DateTime.UtcNow - attackerStats.LastStatHistoryUpdate).TotalMinutes >= 2.5)
#else
if ((DateTime.UtcNow - attackerStats.LastStatHistoryUpdate).TotalMinutes >= 0.1)
#endif
{
attackerStats.LastStatHistoryUpdate = DateTime.UtcNow;
await UpdateStatHistory(attacker, attackerStats);
}
// todo: do we want to save this immediately?
using (var ctx = new DatabaseContext(disableTracking: true))
{
var clientStatsSet = ctx.Set<EFClientStatistics>();
clientStatsSet.Attach(attackerStats).State = EntityState.Modified;
clientStatsSet.Attach(victimStats).State = EntityState.Modified;
await ctx.SaveChangesAsync();
}
}
/// <summary>
/// Update the invidual and average stat history for a client
/// </summary>
/// <param name="client">client to update</param>
/// <param name="clientStats">stats of client that is being updated</param>
/// <returns></returns>
private async Task UpdateStatHistory(EFClient client, EFClientStatistics clientStats)
{
int currentSessionTime = (int)(DateTime.UtcNow - client.LastConnection).TotalSeconds;
// don't update their stat history if they haven't played long
#if DEBUG == false
if (currentSessionTime < 60)
{
return;
}
#endif
int currentServerTotalPlaytime = clientStats.TimePlayed + currentSessionTime;
using (var ctx = new DatabaseContext())
{
// select the rating history for client
var iqHistoryLink = from history in ctx.Set<EFClientRatingHistory>()
.Include(h => h.Ratings)
where history.ClientId == client.ClientId
select history;
// get the client ratings
var clientHistory = await iqHistoryLink
.FirstOrDefaultAsync() ?? new EFClientRatingHistory()
{
Active = true,
ClientId = client.ClientId,
Ratings = new List<EFRating>()
};
// it's the first time they've played
if (clientHistory.RatingHistoryId == 0)
{
ctx.Add(clientHistory);
}
#region INDIVIDUAL_SERVER_PERFORMANCE
// get the client ranking for the current server
int individualClientRanking = await ctx.Set<EFRating>()
.Where(GetRankingFunc(clientStats.ServerId))
// ignore themselves in the query
.Where(c => c.RatingHistory.ClientId != client.ClientId)
.Where(c => c.Performance > clientStats.Performance)
.CountAsync() + 1;
// limit max history per server to 40
if (clientHistory.Ratings.Count(r => r.ServerId == clientStats.ServerId) >= 40)
{
// select the oldest one
var ratingToRemove = clientHistory.Ratings
.Where(r => r.ServerId == clientStats.ServerId)
.OrderBy(r => r.When)
.First();
ctx.Remove(ratingToRemove);
}
// set the previous newest to false
var ratingToUnsetNewest = clientHistory.Ratings
.Where(r => r.ServerId == clientStats.ServerId)
.OrderByDescending(r => r.When)
.FirstOrDefault();
if (ratingToUnsetNewest != null)
{
if (ratingToUnsetNewest.Newest)
{
ctx.Update(ratingToUnsetNewest);
ctx.Entry(ratingToUnsetNewest).Property(r => r.Newest).IsModified = true;
ratingToUnsetNewest.Newest = false;
}
}
var newServerRating = new EFRating()
{
Performance = clientStats.Performance,
Ranking = individualClientRanking,
Active = true,
Newest = true,
ServerId = clientStats.ServerId,
RatingHistoryId = clientHistory.RatingHistoryId,
ActivityAmount = currentServerTotalPlaytime,
};
// add new rating for current server
ctx.Add(newServerRating);
#endregion
#region OVERALL_RATING
// select all performance & time played for current client
var iqClientStats = from stats in ctx.Set<EFClientStatistics>()
where stats.ClientId == client.ClientId
where stats.ServerId != clientStats.ServerId
select new
{
stats.Performance,
stats.TimePlayed
};
var clientStatsList = await iqClientStats.ToListAsync();
// add the current server's so we don't have to pull it frmo the database
clientStatsList.Add(new
{
clientStats.Performance,
TimePlayed = currentServerTotalPlaytime
});
// weight the overall performance based on play time
double performanceAverage = clientStatsList.Sum(p => (p.Performance * p.TimePlayed)) / clientStatsList.Sum(p => p.TimePlayed);
// shouldn't happen but just in case the sum of time played is 0
if (double.IsNaN(performanceAverage))
{
performanceAverage = clientStatsList.Average(p => p.Performance);
}
int overallClientRanking = await ctx.Set<EFRating>()
.Where(GetRankingFunc())
.Where(r => r.RatingHistory.ClientId != client.ClientId)
.Where(r => r.Performance > performanceAverage)
.CountAsync() + 1;
// limit max average history to 40
if (clientHistory.Ratings.Count(r => r.ServerId == null) >= 40)
{
var ratingToRemove = clientHistory.Ratings
.Where(r => r.ServerId == null)
.OrderBy(r => r.When)
.First();
ctx.Remove(ratingToRemove);
}
// set the previous average newest to false
ratingToUnsetNewest = clientHistory.Ratings
.Where(r => r.ServerId == null)
.OrderByDescending(r => r.When)
.FirstOrDefault();
if (ratingToUnsetNewest != null)
{
if (ratingToUnsetNewest.Newest)
{
ctx.Update(ratingToUnsetNewest);
ctx.Entry(ratingToUnsetNewest).Property(r => r.Newest).IsModified = true;
ratingToUnsetNewest.Newest = false;
}
}
// add new average rating
var averageRating = new EFRating()
{
Active = true,
Newest = true,
Performance = performanceAverage,
Ranking = overallClientRanking,
ServerId = null,
RatingHistoryId = clientHistory.RatingHistoryId,
ActivityAmount = clientStatsList.Sum(s => s.TimePlayed)
};
ctx.Add(averageRating);
#endregion
await ctx.SaveChangesAsync();
}
}
/// <summary>
/// Performs the incrementation of kills and deaths for client statistics
/// </summary>
/// <param name="attackerStats">Stats of the attacker</param>
/// <param name="victimStats">Stats of the victim</param>
public void CalculateKill(EFClientStatistics attackerStats, EFClientStatistics victimStats)
{
bool suicide = attackerStats.ClientId == victimStats.ClientId;
// only update their kills if they didn't kill themselves
if (!suicide)
{
attackerStats.Kills += 1;
attackerStats.SessionKills += 1;
attackerStats.KillStreak += 1;
attackerStats.DeathStreak = 0;
}
victimStats.Deaths += 1;
victimStats.SessionDeaths += 1;
victimStats.DeathStreak += 1;
victimStats.KillStreak = 0;
// process the attacker's stats after the kills
attackerStats = UpdateStats(attackerStats);
// calulate elo
if (Servers[attackerStats.ServerId].PlayerStats.Count > 1)
{
#region DEPRECATED
/* var validAttackerLobbyRatings = Servers[attackerStats.ServerId].PlayerStats
.Where(cs => cs.Value.ClientId != attackerStats.ClientId)
.Where(cs =>
Servers[attackerStats.ServerId].IsTeamBased ?
cs.Value.Team != attackerStats.Team :
cs.Value.Team != IW4Info.Team.Spectator)
.Where(cs => cs.Value.Team != IW4Info.Team.Spectator);
double attackerLobbyRating = validAttackerLobbyRatings.Count() > 0 ?
validAttackerLobbyRatings.Average(cs => cs.Value.EloRating) :
attackerStats.EloRating;
var validVictimLobbyRatings = Servers[victimStats.ServerId].PlayerStats
.Where(cs => cs.Value.ClientId != victimStats.ClientId)
.Where(cs =>
Servers[attackerStats.ServerId].IsTeamBased ?
cs.Value.Team != victimStats.Team :
cs.Value.Team != IW4Info.Team.Spectator)
.Where(cs => cs.Value.Team != IW4Info.Team.Spectator);
double victimLobbyRating = validVictimLobbyRatings.Count() > 0 ?
validVictimLobbyRatings.Average(cs => cs.Value.EloRating) :
victimStats.EloRating;*/
#endregion
double attackerEloDifference = Math.Log(Math.Max(1, victimStats.EloRating)) - Math.Log(Math.Max(1, attackerStats.EloRating));
double winPercentage = 1.0 / (1 + Math.Pow(10, attackerEloDifference / Math.E));
// double victimEloDifference = Math.Log(Math.Max(1, attackerStats.EloRating)) - Math.Log(Math.Max(1, victimStats.EloRating));
// double lossPercentage = 1.0 / (1 + Math.Pow(10, victimEloDifference/ Math.E));
attackerStats.EloRating += 6.0 * (1 - winPercentage);
victimStats.EloRating -= 6.0 * (1 - winPercentage);
attackerStats.EloRating = Math.Max(0, Math.Round(attackerStats.EloRating, 2));
victimStats.EloRating = Math.Max(0, Math.Round(victimStats.EloRating, 2));
}
// update after calculation
attackerStats.TimePlayed += (int)(DateTime.UtcNow - attackerStats.LastActive).TotalSeconds;
victimStats.TimePlayed += (int)(DateTime.UtcNow - victimStats.LastActive).TotalSeconds;
attackerStats.LastActive = DateTime.UtcNow;
victimStats.LastActive = DateTime.UtcNow;
}
/// <summary>
/// Update the client stats (skill etc)
/// </summary>
/// <param name="clientStats">Client statistics</param>
/// <returns></returns>
private EFClientStatistics UpdateStats(EFClientStatistics clientStats)
{
// prevent NaN or inactive time lowering SPM
if ((DateTime.UtcNow - clientStats.LastStatCalculation).TotalSeconds / 60.0 < 0.01 ||
(DateTime.UtcNow - clientStats.LastActive).TotalSeconds / 60.0 > 3 ||
clientStats.SessionScore == 0)
{
// prevents idle time counting
clientStats.LastStatCalculation = DateTime.UtcNow;
return clientStats;
}
double timeSinceLastCalc = (DateTime.UtcNow - clientStats.LastStatCalculation).TotalSeconds / 60.0;
double timeSinceLastActive = (DateTime.UtcNow - clientStats.LastActive).TotalSeconds / 60.0;
int scoreDifference = 0;
// this means they've been tking or suicide and is the only time they can have a negative SPM
if (clientStats.RoundScore < 0)
{
scoreDifference = clientStats.RoundScore + clientStats.LastScore;
}
else if (clientStats.RoundScore > 0 && clientStats.LastScore < clientStats.RoundScore)
{
scoreDifference = clientStats.RoundScore - clientStats.LastScore;
}
double killSPM = scoreDifference / timeSinceLastCalc;
double spmMultiplier = 2.934 * Math.Pow(Servers[clientStats.ServerId].TeamCount(clientStats.Team == IW4Info.Team.Allies ? IW4Info.Team.Axis : IW4Info.Team.Allies), -0.454);
killSPM *= Math.Max(1, spmMultiplier);
// update this for ac tracking
clientStats.SessionSPM = killSPM;
// calculate how much the KDR should weigh
// 1.637 is a Eddie-Generated number that weights the KDR nicely
double currentKDR = clientStats.SessionDeaths == 0 ? clientStats.SessionKills : clientStats.SessionKills / clientStats.SessionDeaths;
double alpha = Math.Sqrt(2) / Math.Min(600, Math.Max(clientStats.Kills + clientStats.Deaths, 1));
clientStats.RollingWeightedKDR = (alpha * currentKDR) + (1.0 - alpha) * clientStats.KDR;
double KDRWeight = Math.Round(Math.Pow(clientStats.RollingWeightedKDR, 1.637 / Math.E), 3);
// calculate the weight of the new play time against last 10 hours of gameplay
int totalPlayTime = (clientStats.TimePlayed == 0) ?
(int)(DateTime.UtcNow - clientStats.LastActive).TotalSeconds :
clientStats.TimePlayed + (int)(DateTime.UtcNow - clientStats.LastActive).TotalSeconds;
double SPMAgainstPlayWeight = timeSinceLastCalc / Math.Min(600, (totalPlayTime / 60.0));
// calculate the new weight against average times the weight against play time
clientStats.SPM = (killSPM * SPMAgainstPlayWeight) + (clientStats.SPM * (1 - SPMAgainstPlayWeight));
if (clientStats.SPM < 0)
{
Log.WriteWarning("[StatManager:UpdateStats] clientStats SPM < 0");
Log.WriteDebug($"{scoreDifference}-{clientStats.RoundScore} - {clientStats.LastScore} - {clientStats.SessionScore}");
clientStats.SPM = 0;
}
clientStats.SPM = Math.Round(clientStats.SPM, 3);
clientStats.Skill = Math.Round((clientStats.SPM * KDRWeight), 3);
// fixme: how does this happen?
if (double.IsNaN(clientStats.SPM) || double.IsNaN(clientStats.Skill))
{
Log.WriteWarning("[StatManager::UpdateStats] clientStats SPM/Skill NaN");
Log.WriteDebug($"{killSPM}-{KDRWeight}-{totalPlayTime}-{SPMAgainstPlayWeight}-{clientStats.SPM}-{clientStats.Skill}-{scoreDifference}");
clientStats.SPM = 0;
clientStats.Skill = 0;
}
clientStats.LastStatCalculation = DateTime.UtcNow;
//clientStats.LastScore = clientStats.SessionScore;
return clientStats;
}
public EFServerStatistics InitializeServerStats(long serverId)
{
EFServerStatistics serverStats;
using (var ctx = new DatabaseContext(disableTracking: true))
{
var serverStatsSet = ctx.Set<EFServerStatistics>();
serverStats = serverStatsSet.FirstOrDefault(s => s.ServerId == serverId);
if (serverStats == null)
{
Log.WriteDebug($"Initializing server stats for {serverId}");
// server stats have never been generated before
serverStats = new EFServerStatistics()
{
ServerId = serverId,
TotalKills = 0,
TotalPlayTime = 0,
};
serverStats = serverStatsSet.Add(serverStats).Entity;
ctx.SaveChanges();
}
}
return serverStats;
}
public void ResetKillstreaks(long serverId)
{
var serverStats = Servers[serverId];
foreach (var stat in serverStats.PlayerStats.Values)
{
stat.StartNewSession();
}
}
public void ResetStats(int clientId, long serverId)
{
var stats = Servers[serverId].PlayerStats[clientId];
stats.Kills = 0;
stats.Deaths = 0;
stats.SPM = 0;
stats.Skill = 0;
stats.TimePlayed = 0;
stats.EloRating = 200;
}
public async Task AddMessageAsync(int clientId, long serverId, string message)
{
// the web users can have no account
if (clientId < 1)
{
return;
}
using (var ctx = new DatabaseContext(disableTracking: true))
{
ctx.Set<EFClientMessage>().Add(new EFClientMessage()
{
ClientId = clientId,
Message = message,
ServerId = serverId,
TimeSent = DateTime.UtcNow
});
await ctx.SaveChangesAsync();
}
}
public async Task Sync(Server sv)
{
long serverId = await GetIdForServer(sv);
using (var ctx = new DatabaseContext(disableTracking: true))
{
var serverSet = ctx.Set<EFServer>();
serverSet.Update(Servers[serverId].Server);
var serverStatsSet = ctx.Set<EFServerStatistics>();
serverStatsSet.Update(Servers[serverId].ServerStatistics);
await ctx.SaveChangesAsync();
}
}
public void SetTeamBased(long serverId, bool isTeamBased)
{
Servers[serverId].IsTeamBased = isTeamBased;
}
public static async Task<long> GetIdForServer(Server server)
{
// hack: my laziness
if ($"{server.IP}:{server.GetPort().ToString()}" == "66.150.121.184:28965")
{
return 886229536;
}
else if ($"{server.IP}:{server.GetPort().ToString()}" == "66.150.121.184:28960")
{
return 1645744423;
}
else if ($"{server.IP}:{server.GetPort().ToString()}" == "66.150.121.184:28970")
{
return 1645809959;
}
else
{
long id = HashCode.Combine(server.IP, server.GetPort());
id = id < 0 ? Math.Abs(id) : id;
long? serverId;
// todo: cache this eventually, as it shouldn't change
using (var ctx = new DatabaseContext(disableTracking: true))
{
serverId = (await ctx.Set<EFServer>().FirstOrDefaultAsync(_server => _server.ServerId == server.EndPoint ||
_server.EndPoint == server.ToString() ||
_server.ServerId == id))?.ServerId;
}
if (!serverId.HasValue)
{
return id;
}
return serverId.Value;
}
}
}
}