334 lines
18 KiB
C#
334 lines
18 KiB
C#
using SharedLibraryCore.Helpers;
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using SharedLibraryCore.Interfaces;
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using SharedLibraryCore.Objects;
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using IW4MAdmin.Plugins.Stats.Helpers;
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using IW4MAdmin.Plugins.Stats.Models;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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namespace IW4MAdmin.Plugins.Stats.Cheat
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{
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class Detection
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{
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int Kills;
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int AboveThresholdCount;
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double AverageKillTime;
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Dictionary<IW4Info.HitLocation, int> HitLocationCount;
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EFClientStatistics ClientStats;
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DateTime LastKill;
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ILogger Log;
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public Detection(ILogger log, EFClientStatistics clientStats)
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{
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Log = log;
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HitLocationCount = new Dictionary<IW4Info.HitLocation, int>();
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foreach (var loc in Enum.GetValues(typeof(IW4Info.HitLocation)))
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HitLocationCount.Add((IW4Info.HitLocation)loc, 0);
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LastKill = DateTime.UtcNow;
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ClientStats = clientStats;
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}
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/// <summary>
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/// Analyze kill and see if performed by a cheater
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/// </summary>
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/// <param name="kill">kill performed by the player</param>
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/// <returns>true if detection reached thresholds, false otherwise</returns>
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public DetectionPenaltyResult ProcessKill(EFClientKill kill)
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{
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if ((kill.DeathType != IW4Info.MeansOfDeath.MOD_PISTOL_BULLET &&
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kill.DeathType != IW4Info.MeansOfDeath.MOD_RIFLE_BULLET &&
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kill.DeathType != IW4Info.MeansOfDeath.MOD_HEAD_SHOT) ||
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kill.HitLoc == IW4Info.HitLocation.none)
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return new DetectionPenaltyResult()
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{
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ClientPenalty = Penalty.PenaltyType.Any,
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RatioAmount = 0
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};
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HitLocationCount[kill.HitLoc]++;
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Kills++;
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AverageKillTime = (AverageKillTime + (DateTime.UtcNow - LastKill).TotalSeconds) / Kills;
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#region VIEWANGLES
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double distance = Vector3.Distance(kill.KillOrigin, kill.DeathOrigin);
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double x = kill.KillOrigin.X + distance * Math.Cos(kill.ViewAngles.X.ToRadians()) * Math.Cos(kill.ViewAngles.Y.ToRadians());
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double y = kill.KillOrigin.Y + (distance * Math.Sin(kill.ViewAngles.X.ToRadians()) * Math.Cos(kill.ViewAngles.Y.ToRadians()));
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double z = kill.KillOrigin.Z + distance * Math.Sin((360.0f - kill.ViewAngles.Y).ToRadians());
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var trueVector = Vector3.Subtract(kill.KillOrigin, kill.DeathOrigin);
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var calculatedVector = Vector3.Subtract(kill.KillOrigin, new Vector3((float)x, (float)y, (float)z));
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double angle = trueVector.AngleBetween(calculatedVector);
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if (kill.AdsPercent > 0.5 && kill.Distance > 3)
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{
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var hitLoc = ClientStats.HitLocations
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.First(hl => hl.Location == kill.HitLoc);
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float previousAverage = hitLoc.HitOffsetAverage;
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double newAverage = (previousAverage * (hitLoc.HitCount - 1) + angle) / hitLoc.HitCount;
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hitLoc.HitOffsetAverage = (float)newAverage;
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}
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#endregion
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#region SESSION_RATIOS
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if (Kills >= Thresholds.LowSampleMinKills)
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{
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double marginOfError = Thresholds.GetMarginOfError(Kills);
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// determine what the max headshot percentage can be for current number of kills
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double lerpAmount = Math.Min(1.0, (Kills - Thresholds.LowSampleMinKills) / (double)(Thresholds.HighSampleMinKills - Thresholds.LowSampleMinKills));
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double maxHeadshotLerpValueForFlag = Thresholds.Lerp(Thresholds.HeadshotRatioThresholdLowSample(2.0), Thresholds.HeadshotRatioThresholdHighSample(2.0), lerpAmount) + marginOfError;
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double maxHeadshotLerpValueForBan = Thresholds.Lerp(Thresholds.HeadshotRatioThresholdLowSample(3.0), Thresholds.HeadshotRatioThresholdHighSample(3.0), lerpAmount) + marginOfError;
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// determine what the max bone percentage can be for current number of kills
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double maxBoneRatioLerpValueForFlag = Thresholds.Lerp(Thresholds.BoneRatioThresholdLowSample(2.25), Thresholds.BoneRatioThresholdHighSample(2.25), lerpAmount) + marginOfError;
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double maxBoneRatioLerpValueForBan = Thresholds.Lerp(Thresholds.BoneRatioThresholdLowSample(3.25), Thresholds.BoneRatioThresholdHighSample(3.25), lerpAmount) + marginOfError;
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// calculate headshot ratio
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double currentHeadshotRatio = ((HitLocationCount[IW4Info.HitLocation.head] + HitLocationCount[IW4Info.HitLocation.helmet]) / (double)Kills);
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// calculate maximum bone
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double currentMaxBoneRatio = (HitLocationCount.Values.Select(v => v / (double)Kills).Max());
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var bone = HitLocationCount.FirstOrDefault(b => b.Value == HitLocationCount.Values.Max()).Key;
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#region HEADSHOT_RATIO
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// flag on headshot
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if (currentHeadshotRatio > maxHeadshotLerpValueForFlag)
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{
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// ban on headshot
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if (currentHeadshotRatio > maxHeadshotLerpValueForFlag)
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{
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AboveThresholdCount++;
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Log.WriteDebug("**Maximum Headshot Ratio Reached For Ban**");
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Log.WriteDebug($"ClientId: {kill.AttackerId}");
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Log.WriteDebug($"**Kills: {Kills}");
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Log.WriteDebug($"**Ratio {currentHeadshotRatio}");
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Log.WriteDebug($"**MaxRatio {maxHeadshotLerpValueForFlag}");
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var sb = new StringBuilder();
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foreach (var kvp in HitLocationCount)
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sb.Append($"HitLocation: {kvp.Key} -> {kvp.Value}\r\n");
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Log.WriteDebug(sb.ToString());
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Log.WriteDebug($"ThresholdReached: {AboveThresholdCount}");
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return new DetectionPenaltyResult()
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{
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ClientPenalty = Penalty.PenaltyType.Ban,
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RatioAmount = currentHeadshotRatio,
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Bone = IW4Info.HitLocation.head,
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KillCount = Kills
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};
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}
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else
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{
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AboveThresholdCount++;
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Log.WriteDebug("**Maximum Headshot Ratio Reached For Flag**");
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Log.WriteDebug($"ClientId: {kill.AttackerId}");
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Log.WriteDebug($"**Kills: {Kills}");
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Log.WriteDebug($"**Ratio {currentHeadshotRatio}");
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Log.WriteDebug($"**MaxRatio {maxHeadshotLerpValueForFlag}");
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var sb = new StringBuilder();
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foreach (var kvp in HitLocationCount)
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sb.Append($"HitLocation: {kvp.Key} -> {kvp.Value}\r\n");
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Log.WriteDebug(sb.ToString());
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Log.WriteDebug($"ThresholdReached: {AboveThresholdCount}");
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return new DetectionPenaltyResult()
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{
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ClientPenalty = Penalty.PenaltyType.Flag,
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RatioAmount = currentHeadshotRatio,
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Bone = IW4Info.HitLocation.head,
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KillCount = Kills
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};
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}
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}
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#endregion
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#region BONE_RATIO
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// flag on bone ratio
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else if (currentMaxBoneRatio > maxBoneRatioLerpValueForFlag)
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{
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// ban on bone ratio
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if (currentMaxBoneRatio > maxBoneRatioLerpValueForBan)
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{
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Log.WriteDebug("**Maximum Bone Ratio Reached For Ban**");
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Log.WriteDebug($"ClientId: {kill.AttackerId}");
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Log.WriteDebug($"**Kills: {Kills}");
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Log.WriteDebug($"**Ratio {currentMaxBoneRatio}");
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Log.WriteDebug($"**MaxRatio {maxBoneRatioLerpValueForBan}");
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var sb = new StringBuilder();
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foreach (var kvp in HitLocationCount)
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sb.Append($"HitLocation: {kvp.Key} -> {kvp.Value}\r\n");
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Log.WriteDebug(sb.ToString());
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return new DetectionPenaltyResult()
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{
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ClientPenalty = Penalty.PenaltyType.Ban,
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RatioAmount = currentMaxBoneRatio,
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Bone = bone,
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KillCount = Kills
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};
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}
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else
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{
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Log.WriteDebug("**Maximum Bone Ratio Reached For Flag**");
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Log.WriteDebug($"ClientId: {kill.AttackerId}");
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Log.WriteDebug($"**Kills: {Kills}");
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Log.WriteDebug($"**Ratio {currentMaxBoneRatio}");
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Log.WriteDebug($"**MaxRatio {maxBoneRatioLerpValueForFlag}");
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var sb = new StringBuilder();
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foreach (var kvp in HitLocationCount)
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sb.Append($"HitLocation: {kvp.Key} -> {kvp.Value}\r\n");
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Log.WriteDebug(sb.ToString());
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return new DetectionPenaltyResult()
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{
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ClientPenalty = Penalty.PenaltyType.Flag,
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RatioAmount = currentMaxBoneRatio,
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Bone = bone,
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KillCount = Kills
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};
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}
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}
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#endregion
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}
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#region CHEST_ABDOMEN_RATIO_SESSION
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int chestKills = HitLocationCount[IW4Info.HitLocation.torso_upper];
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if (chestKills >= Thresholds.MediumSampleMinKills)
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{
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double marginOfError = Thresholds.GetMarginOfError(chestKills);
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double lerpAmount = Math.Min(1.0, (chestKills - Thresholds.MediumSampleMinKills) / (double)(Thresholds.HighSampleMinKills - Thresholds.LowSampleMinKills));
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// determine max acceptable ratio of chest to abdomen kills
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double chestAbdomenRatioLerpValueForFlag = Thresholds.Lerp(Thresholds.ChestAbdomenRatioThresholdLowSample(3), Thresholds.ChestAbdomenRatioThresholdHighSample(3), lerpAmount) + marginOfError;
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double chestAbdomenLerpValueForBan = Thresholds.Lerp(Thresholds.ChestAbdomenRatioThresholdLowSample(4), Thresholds.ChestAbdomenRatioThresholdHighSample(4), lerpAmount) + marginOfError;
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double currentChestAbdomenRatio = HitLocationCount[IW4Info.HitLocation.torso_upper] / (double)HitLocationCount[IW4Info.HitLocation.torso_lower];
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if (currentChestAbdomenRatio > chestAbdomenRatioLerpValueForFlag)
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{
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if (currentChestAbdomenRatio > chestAbdomenLerpValueForBan && chestKills >= Thresholds.MediumSampleMinKills + 30)
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{
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Log.WriteDebug("**Maximum Chest/Abdomen Ratio Reached For Ban**");
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Log.WriteDebug($"ClientId: {kill.AttackerId}");
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Log.WriteDebug($"**Chest Kills: {chestKills}");
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Log.WriteDebug($"**Ratio {currentChestAbdomenRatio}");
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Log.WriteDebug($"**MaxRatio {chestAbdomenLerpValueForBan}");
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var sb = new StringBuilder();
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foreach (var kvp in HitLocationCount)
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sb.Append($"HitLocation: {kvp.Key} -> {kvp.Value}\r\n");
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Log.WriteDebug(sb.ToString());
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// Log.WriteDebug($"ThresholdReached: {AboveThresholdCount}");
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return new DetectionPenaltyResult()
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{
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ClientPenalty = Penalty.PenaltyType.Ban,
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RatioAmount = currentChestAbdomenRatio,
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Bone = 0,
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KillCount = chestKills
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};
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}
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else
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{
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Log.WriteDebug("**Maximum Chest/Abdomen Ratio Reached For Flag**");
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Log.WriteDebug($"ClientId: {kill.AttackerId}");
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Log.WriteDebug($"**Chest Kills: {chestKills}");
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Log.WriteDebug($"**Ratio {currentChestAbdomenRatio}");
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Log.WriteDebug($"**MaxRatio {chestAbdomenRatioLerpValueForFlag}");
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var sb = new StringBuilder();
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foreach (var kvp in HitLocationCount)
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sb.Append($"HitLocation: {kvp.Key} -> {kvp.Value}\r\n");
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Log.WriteDebug(sb.ToString());
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// Log.WriteDebug($"ThresholdReached: {AboveThresholdCount}");
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return new DetectionPenaltyResult()
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{
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ClientPenalty = Penalty.PenaltyType.Flag,
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RatioAmount = currentChestAbdomenRatio,
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Bone = 0,
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KillCount = chestKills
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};
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}
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}
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}
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#endregion
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#endregion
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return new DetectionPenaltyResult()
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{
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ClientPenalty = Penalty.PenaltyType.Any,
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RatioAmount = 0
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};
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}
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public DetectionPenaltyResult ProcessTotalRatio(EFClientStatistics stats)
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{
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int totalChestKills = stats.HitLocations.Single(c => c.Location == IW4Info.HitLocation.left_arm_upper).HitCount;
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if (totalChestKills >= 60)
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{
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double marginOfError = Thresholds.GetMarginOfError(totalChestKills);
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double lerpAmount = Math.Min(1.0, (totalChestKills - 60) / 250.0);
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// determine max acceptable ratio of chest to abdomen kills
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double chestAbdomenRatioLerpValueForFlag = Thresholds.Lerp(Thresholds.ChestAbdomenRatioThresholdHighSample(3.0), Thresholds.ChestAbdomenRatioThresholdHighSample(2), lerpAmount) + marginOfError;
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double chestAbdomenLerpValueForBan = Thresholds.Lerp(Thresholds.ChestAbdomenRatioThresholdHighSample(4.0), Thresholds.ChestAbdomenRatioThresholdHighSample(4.0), lerpAmount) + marginOfError;
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double currentChestAbdomenRatio = stats.HitLocations.Single(hl => hl.Location == IW4Info.HitLocation.torso_upper).HitCount /
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stats.HitLocations.Single(hl => hl.Location == IW4Info.HitLocation.torso_lower).HitCount;
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if (currentChestAbdomenRatio > chestAbdomenRatioLerpValueForFlag)
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{
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if (currentChestAbdomenRatio > chestAbdomenLerpValueForBan)
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{
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Log.WriteDebug("**Maximum Lifetime Chest/Abdomen Ratio Reached For Ban**");
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Log.WriteDebug($"ClientId: {stats.ClientId}");
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Log.WriteDebug($"**Total Chest Kills: {totalChestKills}");
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Log.WriteDebug($"**Ratio {currentChestAbdomenRatio}");
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Log.WriteDebug($"**MaxRatio {chestAbdomenLerpValueForBan}");
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var sb = new StringBuilder();
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foreach (var location in stats.HitLocations)
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sb.Append($"HitLocation: {location.Location} -> {location.HitCount}\r\n");
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Log.WriteDebug(sb.ToString());
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// Log.WriteDebug($"ThresholdReached: {AboveThresholdCount}");
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return new DetectionPenaltyResult()
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{
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ClientPenalty = Penalty.PenaltyType.Ban,
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RatioAmount = currentChestAbdomenRatio,
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Bone = IW4Info.HitLocation.torso_upper,
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KillCount = totalChestKills
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};
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}
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else
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{
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Log.WriteDebug("**Maximum Lifetime Chest/Abdomen Ratio Reached For Flag**");
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Log.WriteDebug($"ClientId: {stats.ClientId}");
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Log.WriteDebug($"**Total Chest Kills: {totalChestKills}");
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Log.WriteDebug($"**Ratio {currentChestAbdomenRatio}");
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Log.WriteDebug($"**MaxRatio {chestAbdomenRatioLerpValueForFlag}");
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var sb = new StringBuilder();
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foreach (var location in stats.HitLocations)
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sb.Append($"HitLocation: {location.Location} -> {location.HitCount}\r\n");
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Log.WriteDebug(sb.ToString());
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// Log.WriteDebug($"ThresholdReached: {AboveThresholdCount}");
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return new DetectionPenaltyResult()
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{
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ClientPenalty = Penalty.PenaltyType.Flag,
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RatioAmount = currentChestAbdomenRatio,
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Bone = IW4Info.HitLocation.torso_upper,
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KillCount = totalChestKills
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};
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}
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}
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}
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return new DetectionPenaltyResult()
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{
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Bone = IW4Info.HitLocation.none,
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ClientPenalty = Penalty.PenaltyType.Any
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};
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}
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}
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}
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