Merge remote-tracking branch 'origin/community' into community

# Conflicts:
#	src/DiIiS-NA/D3-GameServer/GSSystem/PowerSystem/Implementations/HeroSkills/Necromancer.cs

configs/config.ini

@@ -33,7 +33,35 @@ RateDrop = 1
 RateChangeDrop = 1
 RateMonsterHP = 1
 RateMonsterDMG = 1
+ChanceHighQualityUnidentified = 30
+ChanceNormalUnidentified = 5
+ResurrectionCharges = 3
 
 [NAT]
 Enabled = False
 PublicIP = 127.0.0.1
+
+; Use Ansi Log if you want a cleaner log view, otherwise, use ConsoleLog, which keeps the screen logs.
+[ConsoleLog]
+Enabled = false
+Target = Console
+IncludeTimeStamps = true
+MinimumLevel = Debug
+MaximumLevel = Fatal
+
+; Ansi Log - enabled by default - useful if you're not in a hard-debug mode. It's easier to view logs.
+[AnsiLog]
+Enabled = true
+Target = Ansi
+IncludeTimeStamps = true
+MinimumLevel = Info
+MaximumLevel = Fatal
+
+; dumps everything from Debug to PacketDump (packet logs) to a file
+[PacketLog]
+Enabled = true
+Target = file
+FileName = packet.log
+IncludeTimeStamps = true
+MinimumLevel = Debug
+MaximumLevel = PacketDump

docs/game-world-settings.md

@@ -14,6 +14,9 @@ RateDrop = 1
 RateChangeDrop = 1
 RateMonsterHP = 1
 RateMonsterDMG = 1
+ChanceHighQualityUnidentified = 30
+ChanceNormalUnidentified = 5
+ResurrectionCharges = 3
 ```
 
 ## Description
@@ -26,4 +29,7 @@ RateMonsterDMG = 1
 | `RateChangeDrop` | Drop quality multiplier   |
 | `RateMonsterHP`  | Monsters HP multiplier    |
 | `RateMonsterDMG` | Monster damage multiplier |
+| `ChanceHighQualityUnidentified` | Percentage that a unique, legendary, set or special item created is unidentified |
+| `ChanceNormalUnidentified` | Percentage that normal item created is unidentified |
+| `ResurrectionCharges` | Amount of times user can resurrect at corpse |
 

src/DiIiS-NA/BGS-Server/AccountsSystem/AccountManager.cs

@@ -85,7 +85,7 @@ namespace DiIiS_NA.LoginServer.AccountsSystem
 		public static Account GetAccountByDiscordId(ulong discordId)
 		{
 			List<DBAccount> dbAcc = DBSessions.SessionQueryWhere<DBAccount>(dba => dba.DiscordId == discordId).ToList();
-			if (dbAcc.Count() == 0)
+			if (!dbAcc.Any())
 			{
 				Logger.Warn("GetAccountByDiscordId {0}: DBAccount is null!", discordId);
 				return null;

src/DiIiS-NA/BGS-Server/AccountsSystem/GameAccount.cs

@@ -1197,7 +1197,7 @@ public class GameAccount : PersistentRPCObject
 
     public uint AchievementPoints
     {
-        get { return (uint)Achievements.Where(a => a.Completion != -1).Count() * 10U; }
+        get { return (uint)Achievements.Count(a => a.Completion != -1) * 10U; }
     }
 
     public bool IsLoggedIn { get; set; }

src/DiIiS-NA/BGS-Server/AccountsSystem/GameAccountManager.cs

@@ -1,4 +1,6 @@
 //Blizzless Project 2022
+
+using System;
 using DiIiS_NA.Core.Logging;
 using DiIiS_NA.Core.Storage;
 using DiIiS_NA.Core.Storage.AccountDataBase.Entities;
@@ -14,10 +16,7 @@ namespace DiIiS_NA.LoginServer.AccountsSystem
 
 		public static readonly ConcurrentDictionary<ulong, GameAccount> LoadedGameAccounts = new();
 
-		public static int TotalAccounts
+		public static int TotalAccounts => DBSessions.SessionQuery<DBGameAccount>().Count;
-		{
-			get { return DBSessions.SessionQuery<DBGameAccount>().Count(); }
-		}
 
 		public static void PreLoadGameAccounts()
 		{
@@ -170,7 +169,7 @@ namespace DiIiS_NA.LoginServer.AccountsSystem
 			crafting.DBGameAccount = dbGAcc;
 			crafting.isHardcore = hardcore;
 			crafting.isSeasoned = seasoned;
-			crafting.LearnedRecipes = new byte[0];
+			crafting.LearnedRecipes = Array.Empty<byte>();
 			crafting.Level = 1;
 			DBSessions.SessionSave(crafting);
 		}

src/DiIiS-NA/BGS-Server/FriendsSystem/UserManager.cs

@@ -70,7 +70,7 @@ namespace DiIiS_NA.LoginServer.FriendsSystem
 			Logger.MethodTrace($": owner {owner.PersistentID}, target {target.PersistentID}");
 			try
 			{
-				if (DBSessions.SessionQueryWhere<DBAccountLists>(dbl => dbl.ListOwner.Id == owner.PersistentID && dbl.ListTarget.Id == target.PersistentID && dbl.Type == "IGNORE").Count() > 0) return;
+				if (DBSessions.SessionQueryWhere<DBAccountLists>(dbl => dbl.ListOwner.Id == owner.PersistentID && dbl.ListTarget.Id == target.PersistentID && dbl.Type == "IGNORE").Any()) return;
 
 				var blockRecord = new DBAccountLists
 				{

src/DiIiS-NA/BGS-Server/GamesSystem/GameFactoryManager.cs

@@ -7,6 +7,7 @@ using DiIiS_NA.LoginServer.ChannelSystem;
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using DiIiS_NA.Core.Extensions;
 
 namespace DiIiS_NA.LoginServer.GamesSystem
 {
@@ -19,7 +20,7 @@ namespace DiIiS_NA.LoginServer.GamesSystem
 		{
 			get
 			{
-				return GameCreators.Values.Where(game => game.PlayersCount > 0).Count();
+				return GameCreators.Values.Count(game => game.PlayersCount > 0);
 			}
 			set { }
 		}
@@ -95,13 +96,12 @@ namespace DiIiS_NA.LoginServer.GamesSystem
 			GameDescriptor TagGame = null;
 			if (client.GameTeamTag != "") TagGame = FindTagGame(client.GameTeamTag);
 
-			var rand = new Random();
 			GameDescriptor gameDescriptor = null;
 			
 			if(TagGame != null)
 				gameDescriptor = TagGame;
 			else if (request_type == "find" && matchingGames.Count > 0)
-				gameDescriptor = matchingGames[rand.Next(matchingGames.Count)];
+				gameDescriptor = matchingGames.PickRandom();
 			else
 				gameDescriptor = CreateGame(client, request.Options, requestId);
 

src/DiIiS-NA/BGS-Server/Toons/ToonManager.cs

@@ -263,7 +263,7 @@ namespace DiIiS_NA.LoginServer.Toons
 				CurrentQuestId = 87700,
 				CurrentQuestStepId = -1,
 				CurrentDifficulty = 0,
-				Lore = new byte[0],
+				Lore = Array.Empty<byte>(),
 				Stats = "0;0;0;0;0;0",
 				DBGameAccount = dbGameAccount,
 				Cosmetic1 = -1,
@@ -424,7 +424,7 @@ namespace DiIiS_NA.LoginServer.Toons
 				DBGameAccount = gaccount,
 				TimePlayed = 0,
 				Stats = "",
-				Lore = new byte[0],
+				Lore = Array.Empty<byte>(),
 				Deleted = false,
 				Archieved = false,
 				Cosmetic1 = -1,

src/DiIiS-NA/Core/Discord/Bot.cs

@@ -9,6 +9,7 @@ using Discord;
 using Discord.Commands;
 using Discord.WebSocket;
 using DiIiS_NA.Core.Discord.Services;
+using DiIiS_NA.Core.Extensions;
 using DiIiS_NA.LoginServer.AccountsSystem;
 using DiIiS_NA.Core.Logging;
 using DiIiS_NA.Core.Storage;
@@ -224,10 +225,10 @@ namespace DiIiS_NA.Core.Discord
 					{
 						var message = await guild.GetTextChannel(channelId).GetMessageAsync(param.First().Value);
 						var reactedUsers = await (message as IUserMessage).GetReactionUsersAsync(Emote.Parse("<:wolfRNG:607868292979490816>"), 100).FlattenAsync();
-						var contestants = reactedUsers.Where(u => !u.IsBot).ToList();
+						var contestants = reactedUsers.Where(u => !u.IsBot).ToArray();
-						if (contestants.Count() > 0)
+
+						if (contestants.TryPickRandom(out var winner))
 						{
-							var winner = reactedUsers.Where(u => !u.IsBot).ToList()[DiIiS_NA.Core.Helpers.Math.FastRandom.Instance.Next(0, reactedUsers.Count() - 1)];
 							winnerName = guild.GetUser(winner.Id).Nickname;
 							await winner.SendMessageAsync("Congratulations! You have won **7 days of D3 Reflection Premium**!.\nYour account has already had its Premium prolonged. Have a nice game!");
 							var acc = AccountManager.GetAccountByDiscordId(winner.Id);

src/DiIiS-NA/Core/Discord/Modules/AuthModule.cs

@@ -33,11 +33,11 @@ namespace DiIiS_NA.Core.Discord.Modules
 			}
 
 
-			if (registerInfo.Count() == 3)
+			if (registerInfo.Length == 3)
 			{
 				if (!email.Contains('@'))
 				{
-					await ReplyAsync($"<@{Context.User.Id}> " + string.Format("'{0}' is not a valid email address.", email));
+					await ReplyAsync($"<@{Context.User.Id}> " + $"'{email}' is not a valid email address.");
 					return;
 				}
 				if (!IsValid(email))

src/DiIiS-NA/Core/Extensions/EnumerableExtensions.cs

@@ -1,13 +1,13 @@
-//Blizzless Project 2022
+using System;
-using System;
 using System.Collections.Generic;
 using System.Text;
 using System.Linq;
+using DiIiS_NA.Core.Helpers.Math;
 
-namespace DiIiS_NA.Core.Extensions
+namespace DiIiS_NA.Core.Extensions;
+
+public static class EnumerableExtensions
 {
-	public static class EnumerableExtensions
-	{
 	public static string HexDump(this IEnumerable<byte> collection)
 	{
 		var sb = new StringBuilder();
@@ -44,7 +44,7 @@ namespace DiIiS_NA.Core.Extensions
 			}
 			hex.Append(value.ToString("X2"));
 			hex.Append(' ');
-				text.Append(string.Format("{0}", (char.IsWhiteSpace((char)value) && (char)value != ' ') ? '.' : (char)value)); // prettify text
+			text.Append($"{((char.IsWhiteSpace((char)value) && (char)value != ' ') ? '.' : (char)value)}"); // prettify text
 			++i;
 		}
 		var hexstring = hex.ToString();
@@ -57,5 +57,14 @@ namespace DiIiS_NA.Core.Extensions
 		output.Append(text);
 		return output.ToString();
 	}
+
+	public static TItem PickRandom<TItem>(this IEnumerable<TItem> source)
+	{
+		return RandomHelper.RandomItem(source);
+	}
+	
+	public static bool TryPickRandom<TItem>(this IEnumerable<TItem> source, out TItem randomItem)
+	{
+		return RandomHelper.TryGetRandomItem(source, out randomItem);
 	}
 }

src/DiIiS-NA/Core/Helpers/Math/RandomHelper.cs

@@ -1,112 +1,122 @@
-//Blizzless Project 2022
+using System;
-using System;
 using System.Linq;
 using System.Collections.Generic;
-using DiIiS_NA.Core.Logging;
 
-namespace DiIiS_NA.Core.Helpers.Math
+namespace DiIiS_NA.Core.Helpers.Math;
+
+public static class RandomHelper
 {
-	public class RandomHelper
+	private static readonly Random Random = new();
-	{
-		private readonly static Random _random;
-
-		static RandomHelper()
-		{
-			_random = new Random();
-		}
 
 	public static int Next()
 	{
-			return _random.Next();
+		return Random.Next();
 	}
 
-		public static int Next(Int32 maxValue)
+	public static int Next(int maxValue)
 	{
-			return _random.Next(maxValue);
+		return Random.Next(maxValue);
 	}
 
-		public static int Next(Int32 minValue, Int32 maxValue)
+	public static int Next(int minValue, int maxValue)
 	{
-			return _random.Next(minValue, maxValue);
+		return Random.Next(minValue, maxValue);
 	}
 
 	public static void NextBytes(byte[] buffer)
 	{
-			_random.NextBytes(buffer);
+		Random.NextBytes(buffer);
 	}
 
 	public static double NextDouble()
 	{
-			return _random.NextDouble();
+		return Random.NextDouble();
 	}
 
-		/*IEnumerable<TValue>*/
+	public static T RandomItem<T>(IEnumerable<T> source)
-		public static TValue RandomValue<TKey, TValue>(IDictionary<TKey, TValue> dictionary)
 	{
-			List<TValue> values = Enumerable.ToList(dictionary.Values);
+		var collection = source as IReadOnlyCollection<T> ?? source?.ToArray();
-			int size = dictionary.Count;
+		if (collection == null || collection.Count == 0)
-			/*while (true)
 		{
-				yield return values[_random.Next(size)];
+			throw new ArgumentException("Cannot be null or empty", nameof(source));
-			}*/
+		}
-			return values[_random.Next(size)];
+
+		var randomIndex = Next(collection.Count);
+		return collection.ElementAt(randomIndex);
+	}
+	
+	public static bool TryGetRandomItem<T>(IEnumerable<T> source, out T randomItem)
+	{
+		var collection = source as IReadOnlyCollection<T> ?? source?.ToArray();
+		if (collection == null)
+		{
+			throw new ArgumentException("Cannot be null", nameof(source));
+		}
+
+		if (collection.Count == 0)
+		{
+			randomItem = default;
+			return false;
+		}
+		
+		var randomIndex = Next(collection.Count);
+		randomItem = collection.ElementAt(randomIndex);
+
+		return true;
 	}
 
 	/// <summary>
 	/// Picks a random item from a list
 	/// </summary>
 	/// <typeparam name="T"></typeparam>
-		/// <param name="list"></param>
+	/// <param name="source"></param>
 	/// <param name="probability">A function that assigns each item a probability. If the probabilities dont sum up to 1, they are normalized</param>
 	/// <returns></returns>
-		public static T RandomItem<T>(IEnumerable<T> list, Func<T, float> probability)
+	public static T RandomItem<T>(IEnumerable<T> source, Func<T, float> probability)
 	{
-			int cumulative = (int)list.Select(x => probability(x)).Sum();
+		var collection = source as IReadOnlyCollection<T> ?? source.ToArray();
+		int cumulative = (int)collection.Select(probability).Sum();
 
-			int randomRoll = RandomHelper.Next(cumulative);
+		int randomRoll = Next(cumulative);
 		float cumulativePercentages = 0;
 
-			foreach (T element in list)
+		foreach (T element in collection)
 		{
 			cumulativePercentages += probability(element);
 			if (cumulativePercentages > randomRoll)
 				return element;
 		}
 
-			return list.First();
+		return collection.First();
 	}
+}
 
-	}
+public class ItemRandomHelper
-
+{
-	public class ItemRandomHelper
+	uint _a;
-	{
+	uint _b;
-		private static readonly Logger Logger = LogManager.CreateLogger("RH");
-		uint a;
-		uint b;
 	public ItemRandomHelper(int seed)
 	{
-			a = (uint)seed;
+		_a = (uint)seed;
-			b = 666;
+		_b = 666;
 	}
 
 	public void ReinitSeed()
 	{
-			b = 666;
+		_b = 666;
 	}
 
 	public uint Next()
 	{
-			ulong temp = 1791398085UL * (ulong)a + (ulong)b;
+		ulong temp = 1791398085UL * _a + _b;
-			a = (uint)temp;
+		_a = (uint)temp;
-			b = (uint)(temp >> 32);
+		_b = (uint)(temp >> 32);
 
-			//Logger.MethodTrace("a {0}, b {1}", a, b);
+		return _a;
-			return (uint)a;
 	}
 
 	public float Next(float min, float max)
 	{
 		return min + (Next() % (uint)(max - min + 1));
 	}
-	}
 }

src/DiIiS-NA/Core/MPQ/FileFormats/AnimSet.cs

@@ -7,6 +7,7 @@ using DiIiS_NA.Core.MPQ.FileFormats.Types;
 using DiIiS_NA.GameServer.Core.Types.TagMap;
 using System.Linq;
 using System;
+using DiIiS_NA.Core.Extensions;
 using DiIiS_NA.Core.Helpers.Math;
 using DiIiS_NA.D3_GameServer.Core.Types.SNO;
 
@@ -102,7 +103,9 @@ namespace DiIiS_NA.Core.MPQ.FileFormats
             {
                 return AnimationSno._NONE;
             }
-            return deathTags.Select(x => GetAniSNO(x)).Where(x => x != AnimationSno._NONE).OrderBy(x => RandomHelper.Next()).First();
+
+            var possibleDeaths = deathTags.Select(GetAniSNO).Where(x => x != AnimationSno._NONE);
+            return possibleDeaths.PickRandom();
         }
     }
     public enum AnimationTags

src/DiIiS-NA/D3-GameServer/AchievementSystem/AchievementManager.cs

@@ -178,7 +178,7 @@ namespace DiIiS_NA.GameServer.AchievementSystem
 				lock (client.ServiceLock)
 				{
 					Logger.MethodTrace($"id {achievementId}");
-					if (client.Account.GameAccount.Achievements.Where(a => a.AchievementId == achievementId && a.Completion != -1).Count() > 0) return;
+					if (client.Account.GameAccount.Achievements.Any(a => a.AchievementId == achievementId && a.Completion != -1)) return;
 					DBAchievements achievement = null;
 					var achs = DBSessions.SessionQueryWhere<DBAchievements>(dbi =>
 							dbi.DBGameAccount.Id == client.Account.GameAccount.PersistentID);
@@ -195,7 +195,7 @@ namespace DiIiS_NA.GameServer.AchievementSystem
 						{
 							DBGameAccount = client.Account.GameAccount.DBGameAccount,
 							AchievementId = achievementId,
-							Criteria = new byte[0],
+							Criteria = Array.Empty<byte>(),
 							IsHardcore = IsHardcore(achievementId),
 							CompleteTime = (int)DateTime.Now.ToUnixTime()
 						};
@@ -218,7 +218,7 @@ namespace DiIiS_NA.GameServer.AchievementSystem
 
 					if (IsHardcore(achievementId))
 					{
-						if (achs.Where(a => a.CompleteTime != -1 && a.IsHardcore == true).Count() >= 30) //31 in total
+						if (achs.Count(a => a.CompleteTime != -1 && a.IsHardcore) >= 30) //31 in total
 						{
 							var toons = DBSessions.SessionQueryWhere<DBToon>(dbt => dbt.DBGameAccount.Id == client.Account.GameAccount.PersistentID && dbt.isHardcore == true && dbt.Archieved == false);
 						}
@@ -308,7 +308,7 @@ namespace DiIiS_NA.GameServer.AchievementSystem
 						}
 
 						var ach_data = _achievements.AchievementList.Single(a => a.Id == definition.ParentAchievementId);
-						if (!ach_data.HasSupersedingAchievementId || client.Account.GameAccount.Achievements.Where(a => a.AchievementId == ach_data.SupersedingAchievementId && a.Completion > 0).Count() > 0)
+						if (!ach_data.HasSupersedingAchievementId || client.Account.GameAccount.Achievements.Any(a => a.AchievementId == ach_data.SupersedingAchievementId && a.Completion > 0))
 							UpdateSnapshot(client, 0, criteriaId);
 					}
 					else
@@ -380,14 +380,14 @@ namespace DiIiS_NA.GameServer.AchievementSystem
 				{
 					if (additionalQuantity == 0) return;
 					Logger.MethodTrace($"id {achievementId}");
-					if (client.Account.GameAccount.Achievements.Where(a => a.AchievementId == achievementId && a.Completion != -1).Count() > 0) return;
+					if (client.Account.GameAccount.Achievements.Any(a => a.AchievementId == achievementId && a.Completion != -1)) return;
 
 					ulong mainCriteriaId = GetMainCriteria(achievementId);
 					var aa = client.Account.GameAccount.AchievementCriteria;
 					D3.Achievements.CriteriaUpdateRecord mainCriteria;
 					lock (client.Account.GameAccount.AchievementCriteria)
 					{
-						mainCriteria = client.Account.GameAccount.AchievementCriteria.Where(c => c.CriteriaId32AndFlags8 == (uint)mainCriteriaId).FirstOrDefault();
+						mainCriteria = client.Account.GameAccount.AchievementCriteria.FirstOrDefault(c => c.CriteriaId32AndFlags8 == (uint)mainCriteriaId);
 					}
 					if (mainCriteria == null)
 						mainCriteria = D3.Achievements.CriteriaUpdateRecord.CreateBuilder()
@@ -531,7 +531,7 @@ namespace DiIiS_NA.GameServer.AchievementSystem
 				(c.AdvanceEvent.Id == 105 && c.AdvanceEvent.Comparand == actorId64)).ToList();
 
 			if (!isHardcore)
-				criterias = criterias.Where(c => c.AdvanceEvent.ModifierList.Where(m => m.NecessaryCondition == 306).Count() == 0).ToList();
+				criterias = criterias.Where(c => c.AdvanceEvent.ModifierList.All(m => m.NecessaryCondition != 306)).ToList();
 
 			criterias = criterias.Where(c => c.AdvanceEvent.ModifierList.Single(m => m.NecessaryCondition == 103).Comparand == type64).ToList();
 

src/DiIiS-NA/D3-GameServer/ClientSystem/Base/ConnectionDataEventArgs.cs

@@ -13,14 +13,14 @@ namespace DiIiS_NA.GameServer.ClientSystem.Base
 		public ConnectionDataEventArgs(IConnection connection, IEnumerable<byte> data)
 			: base(connection)
 		{
-			Data = data ?? new byte[0];
+			Data = data ?? Array.Empty<byte>();
 		}
 
 		public override string ToString()
 		{
 			return Connection.RemoteEndPoint != null
-				? string.Format("{0}: {1} bytes", Connection.RemoteEndPoint, Data.Count())
+				? $"{Connection.RemoteEndPoint}: {Data.Count()} bytes"
-				: string.Format("Not Connected: {0} bytes", Data.Count());
+				: $"Not Connected: {Data.Count()} bytes";
 		}
 	}
 }

src/DiIiS-NA/D3-GameServer/ClientSystem/Base/NetworkThread.cs

@@ -54,7 +54,7 @@ namespace DiIiS_NA.GameServer.ClientSystem.Base
         {
             try
             {
-                if (_newSockets.Count() == 0)
+                if (!_newSockets.Any())
                     return;
 
                 lock (_newSockets)

src/DiIiS-NA/D3-GameServer/CommandManager/AccountCommands.cs

@@ -33,7 +33,7 @@ namespace DiIiS_NA.GameServer.CommandManager
 		[Command("add", "Allows you to add a new user account.\nUsage: account add <email> <password> <battletag> [userlevel]", Account.UserLevels.GM)]
 		public string Add(string[] @params, BattleClient invokerClient)
 		{
-			if (@params.Count() < 3)
+			if (@params.Length < 3)
 				return "Invalid arguments. Type 'help account add' to get help.";
 
 			var email = @params[0];
@@ -41,7 +41,7 @@ namespace DiIiS_NA.GameServer.CommandManager
 			var battleTagName = @params[2];
 			var userLevel = Account.UserLevels.User;
 
-			if (@params.Count() == 4)
+			if (@params.Length == 4)
 			{
 				var level = @params[3].ToLower();
 				switch (level)
@@ -88,7 +88,7 @@ namespace DiIiS_NA.GameServer.CommandManager
 		[Command("setpassword", "Allows you to set a new password for account\nUsage: account setpassword <email> <password>", Account.UserLevels.GM)]
 		public string SetPassword(string[] @params, BattleClient invokerClient)
 		{
-			if (@params.Count() < 2)
+			if (@params.Length < 2)
 				return "Invalid arguments. Type 'help account setpassword' to get help.";
 
 			var email = @params[0];
@@ -109,7 +109,7 @@ namespace DiIiS_NA.GameServer.CommandManager
 		[Command("setbtag", "Allows you to change battle tag for account\nUsage: account setbtag <email> <newname>", Account.UserLevels.GM)]
 		public string SetBTag(string[] @params, BattleClient invokerClient)
 		{
-			if (@params.Count() < 2)
+			if (@params.Length < 2)
 				return "Invalid arguments. Type 'help account setbtag' to get help.";
 
 			var email = @params[0];
@@ -127,7 +127,7 @@ namespace DiIiS_NA.GameServer.CommandManager
 		[Command("setuserlevel", "Allows you to set a new user level for account\nUsage: account setuserlevel <email> <user level>.\nAvailable user levels: owner, admin, gm, user.", Account.UserLevels.GM)]
 		public string SetLevel(string[] @params, BattleClient invokerClient)
 		{
-			if (@params.Count() < 2)
+			if (@params.Length < 2)
 				return "Invalid arguments. Type 'help account setuserlevel' to get help.";
 
 			var email = @params[0];
@@ -170,7 +170,7 @@ namespace DiIiS_NA.GameServer.CommandManager
 		[DefaultCommand(Account.UserLevels.GM)]
 		public string Mute(string[] @params, BattleClient invokerClient)
 		{
-			if (@params.Count() < 2)
+			if (@params.Length < 2)
 				return "Invalid arguments. Type 'help mute' to get help.";
 
 			var bTagName = @params[0];
@@ -196,7 +196,7 @@ namespace DiIiS_NA.GameServer.CommandManager
 		{
 			if(@params == null)
 				return "Wrong game tag. Example: !tag mytag";
-			if (@params.Count() != 1)
+			if (@params.Length != 1)
 				return "Invalid arguments. Enter one string tag.";
 
 			string Tag = @params[0];

src/DiIiS-NA/D3-GameServer/CommandManager/CommandManager.cs

@@ -175,7 +175,7 @@ namespace DiIiS_NA.GameServer.CommandManager
 				bool found = false;
 				var @params = parameters.Split(' ');
 				var group = @params[0];
-				var command = @params.Count() > 1 ? @params[1] : string.Empty;
+				var command = @params.Length > 1 ? @params[1] : string.Empty;
 
 				foreach (var pair in CommandGroups.Where(pair => group == pair.Key.Name))
 				{

src/DiIiS-NA/D3-GameServer/CommandManager/GameCommands.cs

@@ -301,7 +301,7 @@ public class SpawnCommand : CommandGroup
                 actorSNO = 6652;
 
 
-            if (@params.Count() > 1)
+            if (@params.Length > 1)
                 if (!int.TryParse(@params[1], out amount))
                     amount = 1;
             if (amount > 100) amount = 100;
@@ -563,7 +563,7 @@ public class ItemCommand : CommandGroup
             return "You need to specify a valid item name!";
 
 
-        if (@params.Count() == 1 || !int.TryParse(@params[1], out amount))
+        if (@params.Length == 1 || !int.TryParse(@params[1], out amount))
             amount = 1;
 
         if (amount > 100) amount = 100;
@@ -605,7 +605,7 @@ public class ItemCommand : CommandGroup
         if (type == null)
             return "The type given is not a valid item type.";
 
-        if (@params.Count() == 1 || !int.TryParse(@params[1], out amount))
+        if (@params.Length == 1 || !int.TryParse(@params[1], out amount))
             amount = 1;
 
         if (amount > 100) amount = 100;
@@ -766,7 +766,7 @@ public class ConversationCommand : CommandGroup
         if (invokerClient.InGameClient == null)
             return "You can only invoke this command while in-game.";
 
-        if (@params.Count() != 1)
+        if (@params.Length != 1)
             return "Invalid arguments. Type 'help conversation' to get help.";
 
         try
@@ -875,7 +875,7 @@ public class ModifySpeedCommand : CommandGroup
             if (@params == null)
                 return Fallback();
 
-            if (@params.Count() != 1)
+            if (@params.Length != 1)
                 return "Invalid arguments. Type 'help text public' to get help.";
 
             var questId = int.Parse(@params[0]);
@@ -897,7 +897,7 @@ public class ModifySpeedCommand : CommandGroup
             if (@params == null)
                 return Fallback();
 
-            if (@params.Count() != 2)
+            if (@params.Length != 2)
                 return "Invalid arguments. Type 'help text public' to get help.";
 
             var eventId = int.Parse(@params[0]);

src/DiIiS-NA/D3-GameServer/Core/InventoryGrid.cs

@@ -436,9 +436,9 @@ namespace DiIiS_NA.GameServer.Core
 
 		public Item GetItemByDynId(Player plr, uint dynId)
 		{
-			if (Items.Values.Where(it => it.IsRevealedToPlayer(plr) && it.DynamicID(plr) == dynId).Count() > 0)
+			if (Items.Values.Any(it => it.IsRevealedToPlayer(plr) && it.DynamicID(plr) == dynId))
 				return Items.Values.Single(it => it.IsRevealedToPlayer(plr) && it.DynamicID(plr) == dynId);
-			else
+
 			return null;
 		}
 	}

src/DiIiS-NA/D3-GameServer/GSSystem/AISystem/Brains/AggressiveNPCBrain.cs

@@ -12,6 +12,7 @@ using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
+using DiIiS_NA.Core.Extensions;
 
 namespace DiIiS_NA.GameServer.GSSystem.AISystem.Brains
 {
@@ -106,14 +107,10 @@ namespace DiIiS_NA.GameServer.GSSystem.AISystem.Brains
 
 		protected virtual int PickPowerToUse()
 		{
-			if (PresetPowers.Count > 0)
+			var implementedPowers = PresetPowers.Where(PowerSystem.PowerLoader.HasImplementationForPowerSNO);
-			{
+			return implementedPowers.TryPickRandom(out var randomPower)
-				int powerIndex = RandomHelper.Next(PresetPowers.Count);
+				? randomPower
-				if (PowerSystem.PowerLoader.HasImplementationForPowerSNO(PresetPowers[powerIndex]))
+				: -1;
-					return PresetPowers[powerIndex];
-			}
-
-			return -1;
 		}
 
 		public void AddPresetPower(int powerSNO)

src/DiIiS-NA/D3-GameServer/GSSystem/AISystem/Brains/HirelingBrain.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using DiIiS_NA.Core.Extensions;
 using DiIiS_NA.Core.Helpers.Math;
 using DiIiS_NA.Core.MPQ;
 using DiIiS_NA.GameServer.Core.Types.Math;
@@ -150,15 +151,10 @@ namespace DiIiS_NA.GameServer.GSSystem.AISystem.Brains
 		protected virtual int PickPowerToUse()
 		{
 			// randomly used an implemented power
-			if (PresetPowers.Count > 0)
+			var implementedPowers = PresetPowers.Where(PowerLoader.HasImplementationForPowerSNO);
-			{
+			return implementedPowers.TryPickRandom(out var randomPower)
-				int powerIndex = RandomHelper.Next(PresetPowers.Count);
+				? randomPower
-				if (PowerLoader.HasImplementationForPowerSNO(PresetPowers[powerIndex]))
+				: -1;
-					return PresetPowers[powerIndex];
-			}
-
-			// no usable power
-			return -1;
 		}
 
 		public void AddPresetPower(int powerSNO)

src/DiIiS-NA/D3-GameServer/GSSystem/AISystem/Brains/MinionBrain.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using DiIiS_NA.Core.Extensions;
 using DiIiS_NA.Core.Helpers.Math;
 using DiIiS_NA.Core.MPQ;
 using DiIiS_NA.D3_GameServer.Core.Types.SNO;
@@ -196,13 +197,12 @@ namespace DiIiS_NA.GameServer.GSSystem.AISystem.Brains
 			// randomly used an implemented power
 			if (PresetPowers.Count > 0)
 			{
-				//int power = this.PresetPowers[RandomHelper.Next(this.PresetPowers.Count)].Key;
+				// int power = this.PresetPowers[RandomHelper.Next(this.PresetPowers.Count)].Key;
-				List<int> availablePowers = Enumerable.ToList(PresetPowers.Where(p => (p.Value.CooldownTimer == null || p.Value.CooldownTimer.TimedOut) && PowerLoader.HasImplementationForPowerSNO(p.Key)).Select(p => p.Key));
+				List<int> availablePowers = PresetPowers.Where(p => (p.Value.CooldownTimer == null || p.Value.CooldownTimer.TimedOut) && PowerLoader.HasImplementationForPowerSNO(p.Key)).Select(p => p.Key).ToList();
-				if (availablePowers.Where(p => p != 30592).Count() > 0)
+				if (availablePowers.Where(p => p != 30592).TryPickRandom(out var randomItem))
-					return availablePowers.Where(p => p != 30592).ToList()[RandomHelper.Next(availablePowers.Where(p => p != 30592).ToList().Count())];
+					return randomItem;
-				else
 				if (availablePowers.Contains(30592))
-					return 30592; //melee attack
+					return 30592; // melee attack
 			}
 
 			// no usable power

src/DiIiS-NA/D3-GameServer/GSSystem/AISystem/Brains/MonsterBrain.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using DiIiS_NA.Core.Extensions;
 using DiIiS_NA.Core.Helpers.Math;
 using DiIiS_NA.Core.Logging;
 using DiIiS_NA.Core.MPQ;
@@ -59,7 +60,7 @@ namespace DiIiS_NA.GameServer.GSSystem.AISystem.Brains
 			}
 			var monsterData = (DiIiS_NA.Core.MPQ.FileFormats.Monster)MPQStorage.Data.Assets[SNOGroup.Monster][body.ActorData.MonsterSNO].Data;
 			_mpqPowerCount = monsterData.SkillDeclarations.Count(e => e.SNOPower != -1);
-			for (int i = 0; i < monsterData.SkillDeclarations.Count(); i++)
+			for (int i = 0; i < monsterData.SkillDeclarations.Length; i++)
 			{
 				if (monsterData.SkillDeclarations[i].SNOPower == -1) continue;
 				if (PowerLoader.HasImplementationForPowerSNO(monsterData.SkillDeclarations[i].SNOPower))
@@ -435,16 +436,13 @@ namespace DiIiS_NA.GameServer.GSSystem.AISystem.Brains
 			
 			//int power = this.PresetPowers[RandomHelper.Next(this.PresetPowers.Count)].Key;
 			var availablePowers = PresetPowers.Where(p => (p.Value.CooldownTimer == null || p.Value.CooldownTimer.TimedOut) && PowerLoader.HasImplementationForPowerSNO(p.Key)).Select(p => p.Key).ToList();
-			if (availablePowers.Count(p => p != 30592) > 0)
+			if (availablePowers.Where(p => p != 30592).TryPickRandom(out var selectedPower))
 			{
-				int SelectedPower = availablePowers.Where(p => p != 30592).ToList()[RandomHelper.Next(availablePowers.Where(p => p != 30592).ToList().Count())];
+				return selectedPower;
-				//if(SelectedPower == 73824)
-				//if(SkeletonKingWhirlwind)
-				return SelectedPower;
 			}
 
 			if (availablePowers.Contains(30592))
-				return 30592; //melee attack
+				return 30592; // melee attack
 
 			// no usable power
 			return -1;

src/DiIiS-NA/D3-GameServer/GSSystem/AISystem/Brains/StayAggressiveNPCBrain.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using DiIiS_NA.Core.Extensions;
 using DiIiS_NA.Core.Helpers.Math;
 using DiIiS_NA.Core.MPQ;
 using DiIiS_NA.GameServer.Core.Types.SNO;
@@ -115,15 +116,10 @@ namespace DiIiS_NA.GameServer.GSSystem.AISystem.Brains
 		protected virtual int PickPowerToUse()
 		{
 			// randomly used an implemented power
-			if (PresetPowers.Count > 0)
+			var implementedPowers = PresetPowers.Where(PowerLoader.HasImplementationForPowerSNO);
-			{
+			return implementedPowers.TryPickRandom(out var randomPower)
-				int powerIndex = RandomHelper.Next(PresetPowers.Count);
+				? randomPower
-				if (PowerLoader.HasImplementationForPowerSNO(PresetPowers[powerIndex]))
+				: -1;
-					return PresetPowers[powerIndex];
-			}
-
-			// no usable power
-			return -1;
 		}
 
 		public void AddPresetPower(int powerSNO)

src/DiIiS-NA/D3-GameServer/GSSystem/ActorSystem/Implementations/CursedChest.cs

@@ -6,6 +6,7 @@ using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
+using DiIiS_NA.Core.Extensions;
 
 namespace DiIiS_NA.GameServer.GSSystem.ActorSystem.Implementations
 {
@@ -31,7 +32,7 @@ namespace DiIiS_NA.GameServer.GSSystem.ActorSystem.Implementations
 					_collapsed = true;
 
 					World.Game.SideQuestGizmo = this;
-					World.Game.QuestManager.LaunchSideQuest(eventIds[DiIiS_NA.Core.Helpers.Math.FastRandom.Instance.Next(0, eventIds.Count())], true);
+					World.Game.QuestManager.LaunchSideQuest(eventIds.PickRandom(), true);
 				}
 			}
 			catch { }

src/DiIiS-NA/D3-GameServer/GSSystem/ActorSystem/Implementations/CursedShrine.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using DiIiS_NA.Core.Extensions;
 using DiIiS_NA.GameServer.Core.Types.TagMap;
 using DiIiS_NA.GameServer.MessageSystem;
 using DiIiS_NA.GameServer.GSSystem.TickerSystem;
@@ -35,7 +36,7 @@ namespace DiIiS_NA.GameServer.GSSystem.ActorSystem.Implementations
 					_collapsed = true;
 
 					World.Game.SideQuestGizmo = this;
-					World.Game.QuestManager.LaunchSideQuest(eventIds[DiIiS_NA.Core.Helpers.Math.FastRandom.Instance.Next(0, eventIds.Count())], true);
+					World.Game.QuestManager.LaunchSideQuest(eventIds.PickRandom(), true);
 				}
 			}
 			catch { }

src/DiIiS-NA/D3-GameServer/GSSystem/ActorSystem/Implementations/Hirelings/Hireling.cs

@@ -510,11 +510,11 @@ namespace DiIiS_NA.GameServer.GSSystem.ActorSystem.Implementations.Hirelings
 			UnequipItem(owner, slot, item);
 		}
 
-		public Item GetItemByDynId(Player player, uint DynamicId)
+		public Item GetItemByDynId(Player player, uint dynamicId)
 		{
-			if (_equipment[player].Values.Where(it => it.IsRevealedToPlayer(player) && it.DynamicID(player) == DynamicId).Count() > 0)
+			if (_equipment[player].Values.Any(it => it.IsRevealedToPlayer(player) && it.DynamicID(player) == dynamicId))
-				return _equipment[player].Values.Single(it => it.IsRevealedToPlayer(player) && it.DynamicID(player) == DynamicId);
+				return _equipment[player].Values.Single(it => it.IsRevealedToPlayer(player) && it.DynamicID(player) == dynamicId);
-			else
+
 			return null;
 		}
 
@@ -530,18 +530,23 @@ namespace DiIiS_NA.GameServer.GSSystem.ActorSystem.Implementations.Hirelings
 
 		#region EqupimentStats
 
-		public List<Item> GetEquippedItems(Player player)
+		public IEnumerable<Item> GetEquippedItems(Player player)
 		{
-			return _equipment[player].Values.ToList();
+			return _equipment[player].Values;
 		}
 
 		public float GetItemBonus(GameAttributeF attributeF)
 		{
-			var stats = GetEquippedItems(owner).Where(item => item.Attributes[GameAttribute.Durability_Cur] > 0 || item.Attributes[GameAttribute.Durability_Max] == 0);
+			var stats = GetEquippedItems(owner)
+				.Where(item => item.Attributes[GameAttribute.Durability_Cur] > 0 ||
+				               item.Attributes[GameAttribute.Durability_Max] == 0);
 
 			if (attributeF == GameAttribute.Attacks_Per_Second_Item)
-				return stats.Count() > 0 ? stats.Select(item => item.Attributes[attributeF]).Where(a => a > 0f).Aggregate(1f, (x, y) => x * y) : 0f;
+			{
-
+				return stats.Any()
+					? stats.Select(item => item.Attributes[attributeF]).Where(a => a > 0f).Aggregate(1f, (x, y) => x * y)
+					: 0f;
+			}
 			return stats.Sum(item => item.Attributes[attributeF]);
 		}
 
@@ -552,7 +557,7 @@ namespace DiIiS_NA.GameServer.GSSystem.ActorSystem.Implementations.Hirelings
 
 		public bool GetItemBonus(GameAttributeB attributeB)
 		{
-			return GetEquippedItems(owner).Where(item => item.Attributes[attributeB] == true).Count() > 0;
+			return GetEquippedItems(owner).Any(item => item.Attributes[attributeB]);
 		}
 
 		public float GetItemBonus(GameAttributeF attributeF, int attributeKey)

src/DiIiS-NA/D3-GameServer/GSSystem/ActorSystem/Implementations/Minions/MirrorImageMinion.cs

@@ -34,12 +34,12 @@ namespace DiIiS_NA.GameServer.GSSystem.ActorSystem.Implementations.Minions
 
 			LifeTime = TickTimer.WaitSeconds(world.Game, lifetime);
 
-			if (Master != null && context.ScriptFormula(1) < (Master as Player).Followers.Values.Where(f => f == SNO).Count())
+			if (Master != null && context.ScriptFormula(1) < (Master as Player).Followers.Values.Count(f => f == SNO))
 			{
 				if (Master is Player)
 				{
 					var rem = new List<uint>();
-					foreach (var fol in (Master as Player).Followers.Where(f => f.Key != GlobalID).Take((Master as Player).Followers.Values.Where(f => f == SNO).Count() - (int)context.ScriptFormula(1)))
+					foreach (var fol in (Master as Player).Followers.Where(f => f.Key != GlobalID).Take((Master as Player).Followers.Values.Count(f => f == SNO) - (int)context.ScriptFormula(1)))
 						if (fol.Value == SNO)
 							rem.Add(fol.Key);
 					foreach (var rm in rem)

src/DiIiS-NA/D3-GameServer/GSSystem/ActorSystem/InteractiveNPC.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using DiIiS_NA.Core.Extensions;
 using DiIiS_NA.GameServer.MessageSystem.Message.Definitions.Pet;
 using DiIiS_NA.GameServer.GSSystem.PlayerSystem;
 using DiIiS_NA.GameServer.MessageSystem;
@@ -207,10 +208,10 @@ namespace DiIiS_NA.GameServer.GSSystem.ActorSystem
 					{
 						if (ConversationList != null)
 						{
-							var suitable_entries = ConversationList.AmbientConversationListEntries.Where(entry => entry.SpecialEventFlag == World.Game.CurrentAct).ToList();
+							var suitableEntries = ConversationList.AmbientConversationListEntries.Where(entry => entry.SpecialEventFlag == World.Game.CurrentAct).ToList();
-							if (suitable_entries.Count() > 0)
+							if (suitableEntries.Count > 0)
 							{
-								var random_conv = suitable_entries[FastRandom.Instance.Next(suitable_entries.Count())];
+								var random_conv = suitableEntries.PickRandom();
 								player.Conversations.StartConversation(random_conv.SNOConversation);
 								if (ForceConversationSNO == Conversations[0].ConversationSNO) ForceConversationSNO = -1;
 							}

src/DiIiS-NA/D3-GameServer/GSSystem/ActorSystem/Portal.cs

@@ -21,6 +21,7 @@ using System.Drawing;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
+using DiIiS_NA.Core.Extensions;
 
 namespace DiIiS_NA.GameServer.GSSystem.ActorSystem
 {
@@ -1126,16 +1127,16 @@ namespace DiIiS_NA.GameServer.GSSystem.ActorSystem
 				var portals = GetActorsInRange<Portal>(5f).Where(p => p.Destination != null && p.Destination.DestLevelAreaSNO != -1).ToList();
 				if (portals.Count >= 2)
 				{
-					var random_portal = portals[FastRandom.Instance.Next(portals.Count)];
+					var randomPortal = portals.PickRandom();
 					var bounty_portals = World.Game.QuestManager.Bounties.Where(b => !b.PortalSpawned).SelectMany(b => b.LevelAreaChecks).Intersect(portals.Select(p => p.Destination.DestLevelAreaSNO));
 					if (bounty_portals.Any())
 					{
-						random_portal = portals.First(p => World.Game.QuestManager.Bounties.SelectMany(b => b.LevelAreaChecks).Where(w => w != -1).Contains(p.Destination.DestLevelAreaSNO));
+						randomPortal = portals.First(p => World.Game.QuestManager.Bounties.SelectMany(b => b.LevelAreaChecks).Where(w => w != -1).Contains(p.Destination.DestLevelAreaSNO));
-						World.Game.QuestManager.Bounties.First(b => b.LevelAreaChecks.Contains(random_portal.Destination.DestLevelAreaSNO)).PortalSpawned = true;
+						World.Game.QuestManager.Bounties.First(b => b.LevelAreaChecks.Contains(randomPortal.Destination.DestLevelAreaSNO)).PortalSpawned = true;
 					}
 					foreach (var portal in portals)
 						portal.randomed = false;
-					random_portal.randomed = true;
+					randomPortal.randomed = true;
 				}
 			}
 

src/DiIiS-NA/D3-GameServer/GSSystem/GameSystem/GSBackend.cs

@@ -151,7 +151,7 @@ namespace DiIiS_NA.GameServer.GSSystem.GameSystem
 		public void CheckKillMonsterCriteria(ulong gameAccountId, int actorId, int type, bool isHardcore)
 		{
 			Logger.MethodTrace($"gameAccountId {gameAccountId}, actorId {actorId}, type {type}, hc {isHardcore}");
-			BattleNetSocketSend($"ckmc|{gameAccountId}/{actorId}/{type}/{ (isHardcore ? "True" : "False")}");
+			BattleNetSocketSend($"ckmc|{gameAccountId}/{actorId}/{type}/{(isHardcore ? "True" : "False")}");
 		}
 
 		public void CheckSalvageItemCriteria(ulong gameAccountId, int itemId)

src/DiIiS-NA/D3-GameServer/GSSystem/GameSystem/Game.cs

@@ -1716,7 +1716,7 @@ namespace DiIiS_NA.GameServer.GSSystem.GameSystem
 
 		public bool WorldCleared(WorldSno worldSno)
 		{
-			return _worlds[worldSno].Actors.Values.OfType<Monster>().Where(m => m.OriginalLevelArea != -1 && !m.Dead).Count() < 5;
+			return _worlds[worldSno].Actors.Values.OfType<Monster>().Count(m => m.OriginalLevelArea != -1 && !m.Dead) < 5;
 		}
 
 		/// <summary>

src/DiIiS-NA/D3-GameServer/GSSystem/GameSystem/GameUpdateManager.cs

@@ -32,7 +32,7 @@ namespace DiIiS_NA.GameServer.GSSystem.GameSystem
 
 		public static GameUpdateThread FindWorker()
 		{
-			return UpdateWorkers.OrderBy(t => t.Games.Count()).First();
+			return UpdateWorkers.OrderBy(t => t.Games.Count).First();
 		}
 	}
 }

src/DiIiS-NA/D3-GameServer/GSSystem/GameSystem/QuestManager.cs

@@ -940,7 +940,7 @@ namespace DiIiS_NA.D3_GameServer.GSSystem.GameSystem
 					{
 						while (monsterCount < AdditionalTargetCounter + 20)
 						{
-							GameServer.Core.Types.Math.Vector3D scenePoint = Scenes[RandomHelper.Next(0, Scenes.Count)].Position;
+							GameServer.Core.Types.Math.Vector3D scenePoint = Scenes.PickRandom().Position;
 							GameServer.Core.Types.Math.Vector3D point = null;
 							while (true)
 							{
@@ -948,7 +948,7 @@ namespace DiIiS_NA.D3_GameServer.GSSystem.GameSystem
 								if (QuestManager.Game.GetWorld(world).CheckLocationForFlag(point, Scene.NavCellFlags.AllowWalk))
 									break;
 							}
-							QuestManager.Game.GetWorld(world).SpawnMonster((ActorSno)GameServer.GSSystem.GeneratorsSystem.SpawnGenerator.Spawns[LevelArea].melee[FastRandom.Instance.Next(GameServer.GSSystem.GeneratorsSystem.SpawnGenerator.Spawns[LevelArea].melee.Count())], point);
+							QuestManager.Game.GetWorld(world).SpawnMonster((ActorSno)GameServer.GSSystem.GeneratorsSystem.SpawnGenerator.Spawns[LevelArea].melee.PickRandom(), point);
 							monsterCount++;
 						}
 					} // Need additional monster spawn, there are few of them
@@ -978,7 +978,7 @@ namespace DiIiS_NA.D3_GameServer.GSSystem.GameSystem
 									scenes.Add(scene);
 						}
 
-						GameServer.Core.Types.Math.Vector3D scenePoint = scenes[RandomHelper.Next(0, scenes.Count - 1)].Position;
+						GameServer.Core.Types.Math.Vector3D scenePoint = scenes.PickRandom().Position;
 						GameServer.Core.Types.Math.Vector3D point = null;
 						while (true)
 						{

src/DiIiS-NA/D3-GameServer/GSSystem/GeneratorsSystem/MonsterAffixGenerator.cs

@@ -1,6 +1,7 @@
 using DiIiS_NA.Core.Logging;
 using System.Collections.Generic;
 using System.Linq;
+using DiIiS_NA.Core.Extensions;
 using DiIiS_NA.GameServer.GSSystem.AISystem.Brains;
 using static DiIiS_NA.Core.MPQ.FileFormats.GameBalance;
 using Actor = DiIiS_NA.GameServer.GSSystem.ActorSystem.Actor;
@@ -250,14 +251,14 @@ namespace DiIiS_NA.GameServer.GSSystem.GeneratorsSystem
 
 		public static int GeneratePrefixName()
 		{
-			var randomPrefix = NamesList.Where(n => n.AffixType == AffixType.Prefix).OrderBy(x => RandomHelper.Next()).ToList().First();
+			var randomPrefix = NamesList.Where(n => n.AffixType == AffixType.Prefix).PickRandom();
 			return randomPrefix.Hash;
 		}
 
 		public static int GenerateSuffixName()
 		{
-			var randomSuffix = NamesList.Where(n => n.AffixType == AffixType.Suffix).OrderBy(x => RandomHelper.Next()).ToList().First();
+			var randomPrefix = NamesList.Where(n => n.AffixType == AffixType.Suffix).PickRandom();
-			return randomSuffix.Hash;
+			return randomPrefix.Hash;
 		}
 	}
 }

src/DiIiS-NA/D3-GameServer/GSSystem/GeneratorsSystem/WorldGenerator.cs

@@ -302,11 +302,8 @@ namespace DiIiS_NA.GameServer.GSSystem.GeneratorsSystem
 						else
 						{
 							var entries = clusterSelected[sceneChunk.SceneSpecification.ClusterID];
-							SubSceneEntry subSceneEntry = null;
+							if (entries.TryPickRandom(out var subSceneEntry))
-
-							if (entries.Count > 0)
 							{
-								subSceneEntry = RandomHelper.RandomItem<SubSceneEntry>(entries, entry => 1);
 								entries.Remove(subSceneEntry);
 							}
 							else
@@ -566,8 +563,7 @@ namespace DiIiS_NA.GameServer.GSSystem.GeneratorsSystem
 			List<Scene> scenes = world.Scenes.Values.ToList();
 			if (levelArea != -1) scenes = scenes.Where(sc => sc.Specification.SNOLevelAreas[0] == levelArea && !sc.SceneSNO.Name.ToLower().Contains("filler")).ToList();
 			else scenes = scenes.Where(sc => !sc.SceneSNO.Name.ToLower().Contains("filler")).ToList();
-			int randomScene = RandomHelper.Next(0, scenes.Count - 1);
+			Vector3D SSV = scenes.PickRandom().Position;
-			Vector3D SSV = scenes[randomScene].Position;
 			Vector3D startingPoint = null;
 
 			while (true)
@@ -586,10 +582,10 @@ namespace DiIiS_NA.GameServer.GSSystem.GeneratorsSystem
 
 			if (waypoints.Count > 1)
 			{
-				int RandomPoint = RandomHelper.Next(0, waypoints.Count - 1);
+				int randomPoint = RandomHelper.Next(0, waypoints.Count);
 				for (int i = 0; i < waypoints.Count; i++)
 				{
-					if (i != RandomPoint)
+					if (i != randomPoint)
 						waypoints[i].Destroy();
 				}
 			}
@@ -638,7 +634,7 @@ namespace DiIiS_NA.GameServer.GSSystem.GeneratorsSystem
 			bool rift = world.SNO.IsGenerated();
 			//Getting Enter
 			var loadedScene = new SceneChunk();
-			currentScene = DRLGContainers[0][RandomHelper.Next(0, DRLGContainers[0].Count)];
+			currentScene = DRLGContainers[0].PickRandom();
 			loadedScene.SNOHandle = new SNOHandle(SNOGroup.Scene, currentScene.SnoID);
 			loadedScene.PRTransform = new PRTransform(new Quaternion(new Vector3D(0f, 0f, 0f), 1), new Vector3D(0, 0, 0));
 			loadedScene.SceneSpecification = new SceneSpecification(
@@ -676,7 +672,7 @@ namespace DiIiS_NA.GameServer.GSSystem.GeneratorsSystem
 					{
 						if (prestScene.SNOHandle.Name.StartsWith("x1_Pand"))
 							positionOfNav = 3;
-						currentScene = DRLGContainers[2][RandomHelper.Next(0, DRLGContainers[2].Count)];
+						currentScene = DRLGContainers[2].PickRandom();
 						if (currentScene.Asset.Name.Split('_')[positionOfNav].Contains(currentNav) & currentScene.Asset.Name.Split('_')[positionOfNav].ToCharArray().Length > 1) //Way
 							break;
 					}
@@ -715,7 +711,7 @@ namespace DiIiS_NA.GameServer.GSSystem.GeneratorsSystem
 						if (prestScene.SNOHandle.Name.StartsWith("x1_Pand"))
 							positionOfNav = 3;
 
-						currentScene = DRLGContainers[2][RandomHelper.Next(0, DRLGContainers[2].Count)];
+						currentScene = DRLGContainers[2].PickRandom();
 						if (currentScene.Asset.Name.Split('_')[positionOfNav].Contains(currentNav) & currentScene.Asset.Name.Split('_')[positionOfNav].ToCharArray().Length > 1) //Way
 							break;
 					}
@@ -753,7 +749,7 @@ namespace DiIiS_NA.GameServer.GSSystem.GeneratorsSystem
 						if (prestScene.SNOHandle.Name.StartsWith("x1_Pand"))
 							positionOfNav = 3;
 
-						currentScene = DRLGContainers[2][RandomHelper.Next(0, DRLGContainers[2].Count)];
+						currentScene = DRLGContainers[2].PickRandom();
 						if (currentScene.Asset.Name.Split('_')[positionOfNav].Contains(currentNav) & currentScene.Asset.Name.Split('_')[positionOfNav].ToCharArray().Length > 1) //Way
 							break;
 					}
@@ -793,7 +789,7 @@ namespace DiIiS_NA.GameServer.GSSystem.GeneratorsSystem
 						if (prestScene.SNOHandle.Name.StartsWith("x1_Pand"))
 							positionOfNav = 3;
 
-						currentScene = DRLGContainers[2][RandomHelper.Next(0, DRLGContainers[2].Count)];
+						currentScene = DRLGContainers[2].PickRandom();
 						if (currentScene.Asset.Name.Split('_')[positionOfNav].Contains(currentNav) & currentScene.Asset.Name.Split('_')[positionOfNav].ToCharArray().Length > 1) //Way
 							break;
 					}
@@ -832,7 +828,7 @@ namespace DiIiS_NA.GameServer.GSSystem.GeneratorsSystem
 					currentNav = 'E';
 					while (true)
 					{
-						currentScene = DRLGContainers[2][RandomHelper.Next(0, DRLGContainers[2].Count)];
+						currentScene = DRLGContainers[2].PickRandom();
 						if (currentScene.Asset.Name.Split('_')[positionOfNav].Contains(currentNav) & currentScene.Asset.Name.Split('_')[positionOfNav].ToCharArray().Length > 1) //Way
 							break;
 					}
@@ -865,7 +861,7 @@ namespace DiIiS_NA.GameServer.GSSystem.GeneratorsSystem
 					currentNav = 'W';
 					while (true)
 					{
-						currentScene = DRLGContainers[2][RandomHelper.Next(0, DRLGContainers[2].Count)];
+						currentScene = DRLGContainers[2].PickRandom();
 						if (currentScene.Asset.Name.Split('_')[positionOfNav].Contains(currentNav) & currentScene.Asset.Name.Split('_')[positionOfNav].ToCharArray().Length > 1) //Way
 							break;
 					}
@@ -919,7 +915,7 @@ namespace DiIiS_NA.GameServer.GSSystem.GeneratorsSystem
 								{
 									if (hasExit)
 									{
-										currentScene = DRLGContainers[3][RandomHelper.Next(0, DRLGContainers[3].Count)];
+										currentScene = DRLGContainers[3].PickRandom();
 										if (currentScene.Asset.Name.ToLower().Contains("hexmaze_edge") || currentScene.Asset.Name.ToLower().Contains("hexmaze_exit")) positionOfNav = 4;
 										if (currentScene.Asset.Name.Split('_')[positionOfNav].Contains(currentNav) & currentScene.Asset.Name.Split('_')[positionOfNav].ToCharArray().Length == 1) //Way
 										{
@@ -929,7 +925,7 @@ namespace DiIiS_NA.GameServer.GSSystem.GeneratorsSystem
 									}
 									else
 									{
-										currentScene = DRLGContainers[1][RandomHelper.Next(0, DRLGContainers[1].Count)];
+										currentScene = DRLGContainers[1].PickRandom();
 										if (currentScene.Asset.Name.ToLower().Contains("hexmaze_edge") || currentScene.Asset.Name.ToLower().Contains("hexmaze_exit")) positionOfNav = 4;
 										if (currentScene.Asset.Name.Split('_')[positionOfNav].Contains(currentNav)) //Exit
 										{
@@ -941,7 +937,7 @@ namespace DiIiS_NA.GameServer.GSSystem.GeneratorsSystem
 								}
 								else
 								{
-									currentScene = DRLGContainers[2][RandomHelper.Next(0, DRLGContainers[2].Count)];
+									currentScene = DRLGContainers[2].PickRandom();
 									#region проверка на будущее
 									toWaitChunks = currentScene.Asset.Name.Split('_')[positionOfNav].ToCharArray();
 									bool ForceStop = false;
@@ -955,7 +951,7 @@ namespace DiIiS_NA.GameServer.GSSystem.GeneratorsSystem
 														(reservedChunks.Contains(new Vector3D(placeToNewScene.X + RangetoNext, placeToNewScene.Y, placeToNewScene.Z))))
 														while (true)
 														{
-															currentScene = DRLGContainers[3][RandomHelper.Next(0, DRLGContainers[3].Count)];//CurrentScene Switch
+															currentScene = DRLGContainers[3].PickRandom(); // CurrentScene Switch
 															if (currentScene.Asset.Name.ToLower().Contains("hexmaze_edge") || currentScene.Asset.Name.ToLower().Contains("hexmaze_exit")) positionOfNav = 4;
 															if (currentScene.Asset.Name.Split('_')[positionOfNav].Contains(currentNav) & currentScene.Asset.Name.Split('_')[positionOfNav].ToCharArray().Length == 1) //End
 															{
@@ -972,7 +968,7 @@ namespace DiIiS_NA.GameServer.GSSystem.GeneratorsSystem
 														(reservedChunks.Contains(new Vector3D(placeToNewScene.X - RangetoNext, placeToNewScene.Y, placeToNewScene.Z))))
 														while (true)
 														{
-															currentScene = DRLGContainers[3][RandomHelper.Next(0, DRLGContainers[3].Count)];//CurrentScene Switch
+															currentScene = DRLGContainers[3].PickRandom(); // CurrentScene Switch
 															if (currentScene.Asset.Name.ToLower().Contains("hexmaze_edge") || currentScene.Asset.Name.ToLower().Contains("hexmaze_exit")) positionOfNav = 4;
 															if (currentScene.Asset.Name.Split('_')[positionOfNav].Contains(currentNav) & currentScene.Asset.Name.Split('_')[positionOfNav].ToCharArray().Length == 1) //End
 															{
@@ -989,7 +985,7 @@ namespace DiIiS_NA.GameServer.GSSystem.GeneratorsSystem
 														(reservedChunks.Contains(new Vector3D(placeToNewScene.X, placeToNewScene.Y + RangetoNext, placeToNewScene.Z))))
 														while (true)
 														{
-															currentScene = DRLGContainers[3][RandomHelper.Next(0, DRLGContainers[3].Count)];//CurrentScene Switch
+															currentScene = DRLGContainers[3].PickRandom(); // CurrentScene Switch
 															if (currentScene.Asset.Name.ToLower().Contains("hexmaze_edge") || currentScene.Asset.Name.ToLower().Contains("hexmaze_exit")) positionOfNav = 4;
 															if (currentScene.Asset.Name.Split('_')[positionOfNav].Contains(currentNav) & currentScene.Asset.Name.Split('_')[positionOfNav].ToCharArray().Length == 1) //End
 															{
@@ -1006,7 +1002,7 @@ namespace DiIiS_NA.GameServer.GSSystem.GeneratorsSystem
 														 (reservedChunks.Contains(new Vector3D(placeToNewScene.X, placeToNewScene.Y - RangetoNext, placeToNewScene.Z))))
 														while (true)
 														{
-															currentScene = DRLGContainers[3][RandomHelper.Next(0, DRLGContainers[3].Count)];//CurrentScene Switch
+															currentScene = DRLGContainers[3].PickRandom(); // CurrentScene Switch
 															if (currentScene.Asset.Name.ToLower().Contains("hexmaze_edge") || currentScene.Asset.Name.ToLower().Contains("hexmaze_exit")) positionOfNav = 4;
 															if (currentScene.Asset.Name.Split('_')[positionOfNav].Contains(currentNav) & currentScene.Asset.Name.Split('_')[positionOfNav].ToCharArray().Length == 1) //End
 															{
@@ -1067,7 +1063,7 @@ namespace DiIiS_NA.GameServer.GSSystem.GeneratorsSystem
 								{
 									if (hasExit)
 									{
-										currentScene = DRLGContainers[3][RandomHelper.Next(0, DRLGContainers[3].Count)];
+										currentScene = DRLGContainers[3].PickRandom();
 										if (currentScene.Asset.Name.ToLower().Contains("hexmaze_edge") || currentScene.Asset.Name.ToLower().Contains("hexmaze_exit")) positionOfNav = 4;
 										if (currentScene.Asset.Name.Split('_')[positionOfNav].Contains(currentNav) & currentScene.Asset.Name.Split('_')[positionOfNav].ToCharArray().Length == 1) //Way
 										{
@@ -1077,7 +1073,7 @@ namespace DiIiS_NA.GameServer.GSSystem.GeneratorsSystem
 									}
 									else
 									{
-										currentScene = DRLGContainers[1][RandomHelper.Next(0, DRLGContainers[1].Count)];
+										currentScene = DRLGContainers[1].PickRandom();
 										if (currentScene.Asset.Name.ToLower().Contains("hexmaze_edge") || currentScene.Asset.Name.ToLower().Contains("hexmaze_exit")) positionOfNav = 4;
 										if (currentScene.Asset.Name.Split('_')[positionOfNav].Contains(currentNav)) //Exit
 										{
@@ -1089,7 +1085,7 @@ namespace DiIiS_NA.GameServer.GSSystem.GeneratorsSystem
 								}
 								else
 								{
-									currentScene = DRLGContainers[2][RandomHelper.Next(0, DRLGContainers[2].Count)];
+									currentScene = DRLGContainers[2].PickRandom();
 									#region проверка на будущее
 									toWaitChunks = currentScene.Asset.Name.Split('_')[positionOfNav].ToCharArray();
 									bool forceStop = false;
@@ -1103,7 +1099,7 @@ namespace DiIiS_NA.GameServer.GSSystem.GeneratorsSystem
 														(reservedChunks.Contains(new Vector3D(placeToNewScene.X + RangetoNext, placeToNewScene.Y, placeToNewScene.Z))))
 														while (true)
 														{
-															currentScene = DRLGContainers[3][RandomHelper.Next(0, DRLGContainers[3].Count)];//CurrentScene Switch
+															currentScene = DRLGContainers[3].PickRandom(); // CurrentScene Switch
 															if (currentScene.Asset.Name.ToLower().Contains("hexmaze_edge") || currentScene.Asset.Name.ToLower().Contains("hexmaze_exit")) positionOfNav = 4;
 															if (currentScene.Asset.Name.Split('_')[positionOfNav].Contains(currentNav) & currentScene.Asset.Name.Split('_')[positionOfNav].ToCharArray().Length == 1) //End
 															{
@@ -1119,7 +1115,7 @@ namespace DiIiS_NA.GameServer.GSSystem.GeneratorsSystem
 														(reservedChunks.Contains(new Vector3D(placeToNewScene.X - RangetoNext, placeToNewScene.Y, placeToNewScene.Z))))
 														while (true)
 														{
-															currentScene = DRLGContainers[3][RandomHelper.Next(0, DRLGContainers[3].Count)];//CurrentScene Switch
+															currentScene = DRLGContainers[3].PickRandom(); // CurrentScene Switch
 															if (currentScene.Asset.Name.ToLower().Contains("hexmaze_edge") || currentScene.Asset.Name.ToLower().Contains("hexmaze_exit")) positionOfNav = 4;
 															if (currentScene.Asset.Name.Split('_')[positionOfNav].Contains(currentNav) & currentScene.Asset.Name.Split('_')[positionOfNav].ToCharArray().Length == 1) //End
 															{
@@ -1135,7 +1131,7 @@ namespace DiIiS_NA.GameServer.GSSystem.GeneratorsSystem
 														(reservedChunks.Contains(new Vector3D(placeToNewScene.X, placeToNewScene.Y + RangetoNext, placeToNewScene.Z))))
 														while (true)
 														{
-															currentScene = DRLGContainers[3][RandomHelper.Next(0, DRLGContainers[3].Count)];//CurrentScene Switch
+															currentScene = DRLGContainers[3].PickRandom(); // CurrentScene Switch
 															if (currentScene.Asset.Name.ToLower().Contains("hexmaze_edge") || currentScene.Asset.Name.ToLower().Contains("hexmaze_exit")) positionOfNav = 4;
 															if (currentScene.Asset.Name.Split('_')[positionOfNav].Contains(currentNav) & currentScene.Asset.Name.Split('_')[positionOfNav].ToCharArray().Length == 1) //End
 															{
@@ -1151,7 +1147,7 @@ namespace DiIiS_NA.GameServer.GSSystem.GeneratorsSystem
 														 (reservedChunks.Contains(new Vector3D(placeToNewScene.X, placeToNewScene.Y - RangetoNext, placeToNewScene.Z))))
 														while (true)
 														{
-															currentScene = DRLGContainers[3][RandomHelper.Next(0, DRLGContainers[3].Count)];//CurrentScene Switch
+															currentScene = DRLGContainers[3].PickRandom(); // CurrentScene Switch
 															if (currentScene.Asset.Name.ToLower().Contains("hexmaze_edge") || currentScene.Asset.Name.ToLower().Contains("hexmaze_exit")) positionOfNav = 4;// else PosOfNav = 3;
 															if (currentScene.Asset.Name.Split('_')[positionOfNav].Contains(currentNav) & currentScene.Asset.Name.Split('_')[positionOfNav].ToCharArray().Length == 1) //End
 															{
@@ -1212,7 +1208,7 @@ namespace DiIiS_NA.GameServer.GSSystem.GeneratorsSystem
 								{
 									if (hasExit)
 									{
-										currentScene = DRLGContainers[3][RandomHelper.Next(0, DRLGContainers[3].Count)];
+										currentScene = DRLGContainers[3].PickRandom();
 										if (currentScene.Asset.Name.ToLower().Contains("hexmaze_edge") || currentScene.Asset.Name.ToLower().Contains("hexmaze_exit")) positionOfNav = 4;
 										if (currentScene.Asset.Name.Split('_')[positionOfNav].Contains(currentNav) & currentScene.Asset.Name.Split('_')[positionOfNav].ToCharArray().Length == 1) //Way
 										{
@@ -1222,7 +1218,7 @@ namespace DiIiS_NA.GameServer.GSSystem.GeneratorsSystem
 									}
 									else
 									{
-										currentScene = DRLGContainers[1][RandomHelper.Next(0, DRLGContainers[1].Count)];
+										currentScene = DRLGContainers[1].PickRandom();
 										if (currentScene.Asset.Name.ToLower().Contains("hexmaze_edge") || currentScene.Asset.Name.ToLower().Contains("hexmaze_exit")) positionOfNav = 4;
 										if (currentScene.Asset.Name.Split('_')[positionOfNav].Contains(currentNav)) //Exit
 										{
@@ -1234,7 +1230,7 @@ namespace DiIiS_NA.GameServer.GSSystem.GeneratorsSystem
 								}
 								else
 								{
-									currentScene = DRLGContainers[2][RandomHelper.Next(0, DRLGContainers[2].Count)];
+									currentScene = DRLGContainers[2].PickRandom();
 									#region проверка на будущее
 									toWaitChunks = currentScene.Asset.Name.Split('_')[positionOfNav].ToCharArray();
 									bool ForceStop = false;
@@ -1252,7 +1248,7 @@ namespace DiIiS_NA.GameServer.GSSystem.GeneratorsSystem
 														(reservedChunks.Contains(new Vector3D(placeToNewScene.X + RangetoNext, placeToNewScene.Y, placeToNewScene.Z))))
 														while (true)
 														{
-															currentScene = DRLGContainers[3][RandomHelper.Next(0, DRLGContainers[3].Count)];//CurrentScene Switch
+															currentScene = DRLGContainers[3].PickRandom();//CurrentScene Switch
 															if (currentScene.Asset.Name.ToLower().Contains("hexmaze_edge") || currentScene.Asset.Name.ToLower().Contains("hexmaze_exit")) positionOfNav = 4;
 															if (currentScene.Asset.Name.Split('_')[positionOfNav].Contains(currentNav) & currentScene.Asset.Name.Split('_')[positionOfNav].ToCharArray().Length == 1) //End
 															{
@@ -1267,7 +1263,7 @@ namespace DiIiS_NA.GameServer.GSSystem.GeneratorsSystem
 														(reservedChunks.Contains(new Vector3D(placeToNewScene.X - RangetoNext, placeToNewScene.Y, placeToNewScene.Z))))
 														while (true)
 														{
-															currentScene = DRLGContainers[3][RandomHelper.Next(0, DRLGContainers[3].Count)];//CurrentScene Switch
+															currentScene = DRLGContainers[3].PickRandom();//CurrentScene Switch
 															if (currentScene.Asset.Name.ToLower().Contains("hexmaze_edge") || currentScene.Asset.Name.ToLower().Contains("hexmaze_exit")) positionOfNav = 4;
 															if (currentScene.Asset.Name.Split('_')[positionOfNav].Contains(currentNav) & currentScene.Asset.Name.Split('_')[positionOfNav].ToCharArray().Length == 1) //End
 															{
@@ -1282,7 +1278,7 @@ namespace DiIiS_NA.GameServer.GSSystem.GeneratorsSystem
 														(reservedChunks.Contains(new Vector3D(placeToNewScene.X, placeToNewScene.Y + RangetoNext, placeToNewScene.Z))))
 														while (true)
 														{
-															currentScene = DRLGContainers[3][RandomHelper.Next(0, DRLGContainers[3].Count)];//CurrentScene Switch
+															currentScene = DRLGContainers[3].PickRandom(); // CurrentScene Switch
 															if (currentScene.Asset.Name.ToLower().Contains("hexmaze_edge") || currentScene.Asset.Name.ToLower().Contains("hexmaze_exit")) positionOfNav = 4;
 															if (currentScene.Asset.Name.Split('_')[positionOfNav].Contains(currentNav) & currentScene.Asset.Name.Split('_')[positionOfNav].ToCharArray().Length == 1) //End
 															{
@@ -1297,7 +1293,7 @@ namespace DiIiS_NA.GameServer.GSSystem.GeneratorsSystem
 														 (reservedChunks.Contains(new Vector3D(placeToNewScene.X, placeToNewScene.Y - RangetoNext, placeToNewScene.Z))))
 														while (true)
 														{
-															currentScene = DRLGContainers[3][RandomHelper.Next(0, DRLGContainers[3].Count)];//CurrentScene Switch
+															currentScene = DRLGContainers[3].PickRandom(); // CurrentScene Switch
 															if (currentScene.Asset.Name.ToLower().Contains("hexmaze_edge") || currentScene.Asset.Name.ToLower().Contains("hexmaze_exit")) positionOfNav = 4;
 															if (currentScene.Asset.Name.Split('_')[positionOfNav].Contains(currentNav) & currentScene.Asset.Name.Split('_')[positionOfNav].ToCharArray().Length == 1) //End
 															{
@@ -1358,7 +1354,7 @@ namespace DiIiS_NA.GameServer.GSSystem.GeneratorsSystem
 								{
 									if (hasExit)
 									{
-										currentScene = DRLGContainers[3][RandomHelper.Next(0, DRLGContainers[3].Count)];
+										currentScene = DRLGContainers[3].PickRandom();
 										if (currentScene.Asset.Name.ToLower().Contains("hexmaze_edge") || currentScene.Asset.Name.ToLower().Contains("hexmaze_exit")) positionOfNav = 4;
 										if (currentScene.Asset.Name.Split('_')[positionOfNav].Contains(currentNav) & currentScene.Asset.Name.Split('_')[positionOfNav].ToCharArray().Length == 1) //Way
 										{
@@ -1368,7 +1364,7 @@ namespace DiIiS_NA.GameServer.GSSystem.GeneratorsSystem
 									}
 									else
 									{
-										currentScene = DRLGContainers[1][RandomHelper.Next(0, DRLGContainers[1].Count)];
+										currentScene = DRLGContainers[1].PickRandom();
 										if (currentScene.Asset.Name.ToLower().Contains("hexmaze_edge") || currentScene.Asset.Name.ToLower().Contains("hexmaze_exit")) positionOfNav = 4;
 										if (currentScene.Asset.Name.Split('_')[positionOfNav].Contains(currentNav)) //Exit
 										{
@@ -1380,7 +1376,7 @@ namespace DiIiS_NA.GameServer.GSSystem.GeneratorsSystem
 								}
 								else
 								{
-									currentScene = DRLGContainers[2][RandomHelper.Next(0, DRLGContainers[2].Count)];
+									currentScene = DRLGContainers[2].PickRandom();
 									#region проверка на будущее
 									toWaitChunks = currentScene.Asset.Name.Split('_')[positionOfNav].ToCharArray();
 									bool ForceStop = false;
@@ -1398,7 +1394,7 @@ namespace DiIiS_NA.GameServer.GSSystem.GeneratorsSystem
 														(reservedChunks.Contains(new Vector3D(placeToNewScene.X + RangetoNext, placeToNewScene.Y, placeToNewScene.Z))))
 														while (true)
 														{
-															currentScene = DRLGContainers[3][RandomHelper.Next(0, DRLGContainers[3].Count)];//CurrentScene Switch
+															currentScene = DRLGContainers[3].PickRandom(); // CurrentScene Switch
 															if (currentScene.Asset.Name.ToLower().Contains("hexmaze_edge") || currentScene.Asset.Name.ToLower().Contains("hexmaze_exit")) positionOfNav = 4;
 															if (currentScene.Asset.Name.Split('_')[positionOfNav].Contains(currentNav) & currentScene.Asset.Name.Split('_')[positionOfNav].ToCharArray().Length == 1) //End
 															{
@@ -1413,7 +1409,7 @@ namespace DiIiS_NA.GameServer.GSSystem.GeneratorsSystem
 														(reservedChunks.Contains(new Vector3D(placeToNewScene.X - RangetoNext, placeToNewScene.Y, placeToNewScene.Z))))
 														while (true)
 														{
-															currentScene = DRLGContainers[3][RandomHelper.Next(0, DRLGContainers[3].Count)];//CurrentScene Switch
+															currentScene = DRLGContainers[3].PickRandom(); // CurrentScene Switch
 															if (currentScene.Asset.Name.ToLower().Contains("hexmaze_edge") || currentScene.Asset.Name.ToLower().Contains("hexmaze_exit")) positionOfNav = 4;
 															if (currentScene.Asset.Name.Split('_')[positionOfNav].Contains(currentNav) & currentScene.Asset.Name.Split('_')[positionOfNav].ToCharArray().Length == 1) //End
 															{
@@ -1428,7 +1424,7 @@ namespace DiIiS_NA.GameServer.GSSystem.GeneratorsSystem
 														(reservedChunks.Contains(new Vector3D(placeToNewScene.X, placeToNewScene.Y + RangetoNext, placeToNewScene.Z))))
 														while (true)
 														{
-															currentScene = DRLGContainers[3][RandomHelper.Next(0, DRLGContainers[3].Count)];//CurrentScene Switch
+															currentScene = DRLGContainers[3].PickRandom(); // CurrentScene Switch
 															if (currentScene.Asset.Name.ToLower().Contains("hexmaze_edge") || currentScene.Asset.Name.ToLower().Contains("hexmaze_exit")) positionOfNav = 4;
 															if (currentScene.Asset.Name.Split('_')[positionOfNav].Contains(currentNav) & currentScene.Asset.Name.Split('_')[positionOfNav].ToCharArray().Length == 1) //End
 															{
@@ -1443,7 +1439,7 @@ namespace DiIiS_NA.GameServer.GSSystem.GeneratorsSystem
 														 (reservedChunks.Contains(new Vector3D(placeToNewScene.X, placeToNewScene.Y - RangetoNext, placeToNewScene.Z))))
 														while (true)
 														{
-															currentScene = DRLGContainers[3][RandomHelper.Next(0, DRLGContainers[3].Count)];//CurrentScene Switch
+															currentScene = DRLGContainers[3].PickRandom(); // CurrentScene Switch
 															if (currentScene.Asset.Name.ToLower().Contains("hexmaze_edge") || currentScene.Asset.Name.ToLower().Contains("hexmaze_exit")) positionOfNav = 4;
 															if (currentScene.Asset.Name.Split('_')[positionOfNav].Contains(currentNav) & currentScene.Asset.Name.Split('_')[positionOfNav].ToCharArray().Length == 1) //End
 															{
@@ -1540,7 +1536,7 @@ namespace DiIiS_NA.GameServer.GSSystem.GeneratorsSystem
 							char Nav = chunk.SNOHandle.Name.Split('_')[positionOfNav].ToCharArray()[0];
 							while (true)
 							{
-								currentScene = DRLGContainers[1][RandomHelper.Next(0, DRLGContainers[1].Count)];
+								currentScene = DRLGContainers[1].PickRandom();
 
 								if (currentScene.Asset.Name.Split('_')[positionOfNav].Contains(Nav)) //Exit
 								{
@@ -1603,7 +1599,7 @@ namespace DiIiS_NA.GameServer.GSSystem.GeneratorsSystem
 
 						if (!busy)
 						{
-							currentScene = DRLGContainers[4][RandomHelper.Next(0, DRLGContainers[4].Count)];
+							currentScene = DRLGContainers[4].PickRandom();
 
 							var newscene = new SceneChunk
 							{
@@ -1678,7 +1674,7 @@ namespace DiIiS_NA.GameServer.GSSystem.GeneratorsSystem
 
 					if (DRLGTemplate.Templates.ContainsKey(worldSNO))
 					{
-						DRLGTemplate.DRLGLayout world_layout = DRLGTemplate.Templates[worldSNO][FastRandom.Instance.Next(DRLGTemplate.Templates[worldSNO].Count)];
+						DRLGTemplate.DRLGLayout world_layout = DRLGTemplate.Templates[worldSNO].PickRandom();
 						int coordY = 0;
 
 						foreach (List<int> row in world_layout.map)
@@ -1975,7 +1971,7 @@ namespace DiIiS_NA.GameServer.GSSystem.GeneratorsSystem
 			for (int i = 0; i < count; i++)
 			{
 				//Chose a random exit to test
-				Vector3D chosenExitPosition = RandomHelper.RandomValue(exitTypes);
+				Vector3D chosenExitPosition = exitTypes.PickRandom().Value;
 				var chosenExitDirection = (from pair in exitTypes
 										   where pair.Value == chosenExitPosition
 										   select pair.Key).FirstOrDefault();
@@ -2077,7 +2073,7 @@ namespace DiIiS_NA.GameServer.GSSystem.GeneratorsSystem
 				//return filler
 				return GetTileInfo(tiles, TileTypes.Filler);
 			}
-			List<TileInfo> tilesWithRightDirection = (from pair in tiles where ((pair.Value.ExitDirectionBits & exitDirectionBits) > 0) select pair.Value).ToList<TileInfo>();
+			List<TileInfo> tilesWithRightDirection = (from pair in tiles where ((pair.Value.ExitDirectionBits & exitDirectionBits) > 0) select pair.Value).ToList();
 
 			if (tilesWithRightDirection.Count == 0)
 			{
@@ -2087,7 +2083,7 @@ namespace DiIiS_NA.GameServer.GSSystem.GeneratorsSystem
 				return null;
 			}
 
-			return RandomHelper.RandomItem(tilesWithRightDirection, x => 1.0f);
+			return tilesWithRightDirection.PickRandom();
 		}
 
 		private TileInfo GetTile(Dictionary<int, TileInfo> tiles, int snoId)
@@ -2100,12 +2096,12 @@ namespace DiIiS_NA.GameServer.GSSystem.GeneratorsSystem
 		/// Returns a tileinfo from a list of tiles that has a specific type
 		/// </summary>
 		/// <param name="tiles"></param>
-		/// <param name="exitDirectionBits"></param>
+		/// <param name="tileType"></param>
 		/// <returns></returns>
 		private TileInfo GetTileInfo(Dictionary<int, TileInfo> tiles, TileTypes tileType)
 		{
-			var tilesWithRightType = (from pair in tiles where (pair.Value.TileType == (int)tileType) select pair.Value);
+			var tilesWithRightType = tiles.Values.Where(tile => tile.TileType == (int)tileType);
-			return RandomHelper.RandomItem(tilesWithRightType, x => 1);
+			return tilesWithRightType.PickRandom();
 		}
 
 		private TileInfo GetTileInfo(Dictionary<int, TileInfo> tiles, TileTypes tileType, int exitDirectionBits)
@@ -2274,7 +2270,7 @@ namespace DiIiS_NA.GameServer.GSSystem.GeneratorsSystem
 				{
 					var handle = new SNOHandle(207706);
 					if (handle == null || gizmoLocations.Count == 0) continue;
-					LazyLoadActor(handle, gizmoLocations[FastRandom.Instance.Next(gizmoLocations.Count)], world, ((DiIiS_NA.Core.MPQ.FileFormats.Actor)handle.Target).TagMap);
+					LazyLoadActor(handle, gizmoLocations.PickRandom(), world, ((DiIiS_NA.Core.MPQ.FileFormats.Actor)handle.Target).TagMap);
 				}
 				else
 					foreach (var location in gizmoLocations)
@@ -2300,11 +2296,11 @@ namespace DiIiS_NA.GameServer.GSSystem.GeneratorsSystem
 
 				if (gizmoLocations.Count > 0 && world.Game.MonsterLevel >= Program.MaxLevel && FastRandom.Instance.Next(100) < 30)
 				{
-					var handle_chest = new SNOHandle(96993); //leg chest
+					var handleChest = new SNOHandle(96993); //leg chest
-					if (handle_chest == null) continue;
+					if (handleChest == null) continue;
-					var golden_chest = LoadActor(handle_chest, gizmoLocations[FastRandom.Instance.Next(0, gizmoLocations.Count - 1)], world, ((DiIiS_NA.Core.MPQ.FileFormats.Actor)handle_chest.Target).TagMap);
+					var goldenChest = LoadActor(handleChest, gizmoLocations.PickRandom(), world, ((DiIiS_NA.Core.MPQ.FileFormats.Actor)handleChest.Target).TagMap);
-					if (golden_chest > 0)
+					if (goldenChest > 0)
-						(world.GetActorByGlobalId(golden_chest) as LegendaryChest).ChestActive = true;
+						(world.GetActorByGlobalId(goldenChest) as LegendaryChest).ChestActive = true;
 				}
 
 				if (world.DRLGEmuActive)
@@ -2326,8 +2322,8 @@ namespace DiIiS_NA.GameServer.GSSystem.GeneratorsSystem
 					//unique spawn
 					if (SpawnGenerator.Spawns.ContainsKey(wid) && SpawnGenerator.Spawns[wid].dangerous.Count > 0 && FastRandom.Instance.NextDouble() < 0.5)
 					{
-						var randomUnique = new SNOHandle(SpawnGenerator.Spawns[wid].dangerous[FastRandom.Instance.Next(SpawnGenerator.Spawns[wid].dangerous.Count)]);
+						var randomUnique = new SNOHandle(SpawnGenerator.Spawns[wid].dangerous.PickRandom());
-						var scene = levelAreas.First().Value[FastRandom.Instance.Next(levelAreas.First().Value.Count)];
+						var scene = levelAreas.First().Value.PickRandom();
 						int x = FastRandom.Instance.Next(scene.NavMesh.SquaresCountX);
 						int y = FastRandom.Instance.Next(scene.NavMesh.SquaresCountY);
 						int threshold = 0;
@@ -2368,9 +2364,9 @@ namespace DiIiS_NA.GameServer.GSSystem.GeneratorsSystem
 					//goblin spawn
 					if (SpawnGenerator.Spawns.ContainsKey(wid) && SpawnGenerator.Spawns[wid].can_spawn_goblin && FastRandom.Instance.NextDouble() < 0.5)
 					{
-						var randomGoblin = new SNOHandle(Goblins[FastRandom.Instance.Next(Goblins.Count)]);
+						var randomGoblin = new SNOHandle(Goblins.PickRandom());
 						if (world.Game.IsHardcore) randomGoblin = new SNOHandle(3852);
-						var scene = levelAreas.First().Value[FastRandom.Instance.Next(levelAreas.First().Value.Count)];
+						var scene = levelAreas.First().Value.PickRandom();
 						int x = FastRandom.Instance.Next(scene.NavMesh.SquaresCountX);
 						int y = FastRandom.Instance.Next(scene.NavMesh.SquaresCountY);
 						int threshold = 0;
@@ -2423,8 +2419,8 @@ namespace DiIiS_NA.GameServer.GSSystem.GeneratorsSystem
 					//unique spawn
 					if (SpawnGenerator.Spawns.ContainsKey(la) && SpawnGenerator.Spawns[la].dangerous.Count > 0 && FastRandom.Instance.NextDouble() < 0.5)
 					{
-						var randomUnique = new SNOHandle(SpawnGenerator.Spawns[la].dangerous[FastRandom.Instance.Next(SpawnGenerator.Spawns[la].dangerous.Count)]);
+						var randomUnique = new SNOHandle(SpawnGenerator.Spawns[la].dangerous.PickRandom());
-						var scene = levelAreas[la][FastRandom.Instance.Next(levelAreas[la].Count)];
+						var scene = levelAreas[la].PickRandom();
 						int x = FastRandom.Instance.Next(scene.NavMesh.SquaresCountX);
 						int y = FastRandom.Instance.Next(scene.NavMesh.SquaresCountY);
 						int threshold = 0;
@@ -2465,9 +2461,9 @@ namespace DiIiS_NA.GameServer.GSSystem.GeneratorsSystem
 					//goblin spawn
 					if (SpawnGenerator.Spawns.ContainsKey(la) && SpawnGenerator.Spawns[la].can_spawn_goblin && FastRandom.Instance.NextDouble() < 0.5)
 					{
-						var randomGoblin = new SNOHandle(Goblins[FastRandom.Instance.Next(Goblins.Count)]);
+						var randomGoblin = new SNOHandle(Goblins.PickRandom());
 						if (world.Game.IsHardcore) randomGoblin = new SNOHandle(3852);
-						var scene = levelAreas[la][FastRandom.Instance.Next(levelAreas[la].Count)];
+						var scene = levelAreas[la].PickRandom();
 						int x = FastRandom.Instance.Next(scene.NavMesh.SquaresCountX);
 						int y = FastRandom.Instance.Next(scene.NavMesh.SquaresCountY);
 						int threshold = 0;
@@ -2543,8 +2539,8 @@ namespace DiIiS_NA.GameServer.GSSystem.GeneratorsSystem
 						#region elite spawn
 						int randomMeleeMonsterId = -1;
 						int randomRangedMonsterId = -1;
-						if (SpawnGenerator.Spawns[la].melee.Count > 0) randomMeleeMonsterId = SpawnGenerator.Spawns[la].melee[FastRandom.Instance.Next(SpawnGenerator.Spawns[la].melee.Count)];
+						if (SpawnGenerator.Spawns[la].melee.Count > 0) randomMeleeMonsterId = SpawnGenerator.Spawns[la].melee.PickRandom();
-						if (SpawnGenerator.Spawns[la].range.Count > 0) randomRangedMonsterId = SpawnGenerator.Spawns[la].range[FastRandom.Instance.Next(SpawnGenerator.Spawns[la].range.Count)];
+						if (SpawnGenerator.Spawns[la].range.Count > 0) randomRangedMonsterId = SpawnGenerator.Spawns[la].range.PickRandom();
 						SNOHandle meleeMonsterHandle = (randomMeleeMonsterId == -1 ? null : new SNOHandle(randomMeleeMonsterId));
 						SNOHandle rangedMonsterHandle = (randomRangedMonsterId == -1 ? null : new SNOHandle(randomRangedMonsterId));
 						if (rangedMonsterHandle == null) rangedMonsterHandle = meleeMonsterHandle;
@@ -2588,8 +2584,8 @@ namespace DiIiS_NA.GameServer.GSSystem.GeneratorsSystem
 						{
 							int randomMeleeMonsterId = -1;
 							int randomRangedMonsterId = -1;
-							if (SpawnGenerator.Spawns[la].melee.Count > 0) randomMeleeMonsterId = SpawnGenerator.Spawns[la].melee[FastRandom.Instance.Next(SpawnGenerator.Spawns[la].melee.Count)];
+							if (SpawnGenerator.Spawns[la].melee.Count > 0) randomMeleeMonsterId = SpawnGenerator.Spawns[la].melee.PickRandom();
-							if (SpawnGenerator.Spawns[la].range.Count > 0) randomRangedMonsterId = SpawnGenerator.Spawns[la].range[FastRandom.Instance.Next(SpawnGenerator.Spawns[la].range.Count)];
+							if (SpawnGenerator.Spawns[la].range.Count > 0) randomRangedMonsterId = SpawnGenerator.Spawns[la].range.PickRandom();
 							SNOHandle meleeMonsterHandle = (randomMeleeMonsterId == -1 ? null : new SNOHandle(randomMeleeMonsterId));
 							SNOHandle rangedMonsterHandle = (randomRangedMonsterId == -1 ? null : new SNOHandle(randomRangedMonsterId));
 							//int maxMobsInStack = (SpawnGenerator.IsMelee(la, randomMonsterId) ? 6 : (SpawnGenerator.IsDangerous(la, randomMonsterId) ? 1 : 3));
@@ -2620,7 +2616,7 @@ namespace DiIiS_NA.GameServer.GSSystem.GeneratorsSystem
 						else //spawn champions
 						#region champion spawn
 						{
-							SNOHandle championHandle = new SNOHandle(SpawnGenerator.Spawns[la].melee[FastRandom.Instance.Next(SpawnGenerator.Spawns[la].melee.Count)]);
+							SNOHandle championHandle = new SNOHandle(SpawnGenerator.Spawns[la].melee.PickRandom());
 							groupId = FastRandom.Instance.Next();
 							for (int n = 0; n < 4; n++)
 							{

src/DiIiS-NA/D3-GameServer/GSSystem/ItemsSystem/AffixGenerator.cs

@@ -171,11 +171,9 @@ namespace DiIiS_NA.GameServer.GSSystem.ItemsSystem
 
 			if (IsUnique)
 			{
-				var restrictedFamily = item.ItemDefinition.LegendaryAffixFamily.Where(af => af != -1);
+				var restrictedFamily = item.ItemDefinition.LegendaryAffixFamily.Where(af => af != -1).ToHashSet();
-				filteredList = filteredList.Where(
+				filteredList = filteredList
-					a =>
+					.Where(a => !(restrictedFamily.Contains(a.AffixFamily0) || restrictedFamily.Contains(a.AffixFamily1)));
-					!(restrictedFamily.Contains(a.AffixFamily0) || restrictedFamily.Contains(a.AffixFamily1))
-					);
 
 				if (restrictedFamily.Contains(1616088365) ||
 				    restrictedFamily.Contains(-1461069734) ||
@@ -184,17 +182,17 @@ namespace DiIiS_NA.GameServer.GSSystem.ItemsSystem
 				    restrictedFamily.Contains(-812845450) ||
 				    restrictedFamily.Contains(1791554648) ||
 				    restrictedFamily.Contains(125900958)) //MinMaxDam and ele damage
-					filteredList = filteredList.Where(
+				{
-						a =>
+					filteredList = filteredList
-						!a.Name.Contains("FireD") &&
+						.Where(a => !a.Name.Contains("FireD") &&
 						            !a.Name.Contains("PoisonD") &&
 						            !a.Name.Contains("HolyD") &&
 						            !a.Name.Contains("ColdD") &&
 						            !a.Name.Contains("LightningD") &&
 						            !a.Name.Contains("ArcaneD") &&
 						            !a.Name.Contains("MinMaxDam") &&
-						isCrafting ? !a.Name.ToLower().Contains("socket") : !a.Name.Contains("ASDHUIOPASDHIOU")
+						            isCrafting ? !a.Name.ToLower().Contains("socket") : !a.Name.Contains("ASDHUIOPASDHIOU"));
-						);
+				}
 			}
 
 			if (affixesCount <= 1)
@@ -228,7 +226,7 @@ namespace DiIiS_NA.GameServer.GSSystem.ItemsSystem
 				if (item.AffixFamilies.Contains(affix_group.First().AffixFamily0)) continue;
 				int s = item.ItemDefinition.RequiredLevel;
 
-				bestDefinitions[affix_group.First().AffixFamily0] = affix_group.ToList()[FastRandom.Instance.Next(0, affix_group.Count())];
+				bestDefinitions[affix_group.First().AffixFamily0] = affix_group.PickRandom();
 			}
 
 			//if (bestDefinitions.Values.Where(a => a.Name.Contains("PoisonD")).Count() > 0) Logger.Debug("PoisonD in bestDefinitions");
@@ -321,24 +319,28 @@ namespace DiIiS_NA.GameServer.GSSystem.ItemsSystem
 		public static int FindSuitableAffix(Item item, int affixGroup, int affixLevel, bool extendedFilter)
 		{
 			if (affixGroup == -1) return -1;
-			var all_group = LegendaryAffixList.Where(a => (a.AffixFamily0 == affixGroup || a.AffixFamily1 == affixGroup) && (Item.Is2H(item.ItemType) ? !a.Name.EndsWith("1h") : (!a.Name.Contains("Two-Handed") && !a.Name.EndsWith("2h"))));
+			var allGroup = LegendaryAffixList
+				.Where(a => (a.AffixFamily0 == affixGroup || a.AffixFamily1 == affixGroup) && (Item.Is2H(item.ItemType) ? !a.Name.EndsWith("1h") : (!a.Name.Contains("Two-Handed") && !a.Name.EndsWith("2h"))))
+				.ToArray();
 
-			if (all_group.Count() == 0) return -1;
+			if (!allGroup.Any()) return -1;
 
-			bool secondGroup = (all_group.First().AffixFamily1 == affixGroup);
+			bool secondGroup = allGroup.First().AffixFamily1 == affixGroup;
 
-			var suitable = all_group.Where(a => a.AffixLevel <= affixLevel || affixLevel <= 0);
+			var suitable = allGroup.Where(a => a.AffixLevel <= affixLevel || affixLevel <= 0).ToArray();
 
-			if (suitable.Count() == 0) return -1;
+			if (!suitable.Any()) return -1;
 
 			List<int> itemTypes = ItemGroup.HierarchyToHashList(item.ItemType);
 
-			suitable = suitable.Where(a => itemTypes.ContainsAtLeastOne(a.ItemGroup) || (extendedFilter ? itemTypes.ContainsAtLeastOne(a.LegendaryAllowedTypes) : false));
+			suitable = suitable.Where(a =>
+				itemTypes.ContainsAtLeastOne(a.ItemGroup) ||
+				(extendedFilter && itemTypes.ContainsAtLeastOne(a.LegendaryAllowedTypes))).ToArray();
 
-			if (suitable.Count() == 0) return -1;
+			if (!suitable.Any()) return -1;
 
-			int suitableAffixLevel = suitable.OrderByDescending(a => a.AffixLevel).First().AffixLevel;
+			int suitableAffixLevel = suitable.MaxBy(a => a.AffixLevel).AffixLevel;
-			suitable = suitable.Where(a => a.AffixLevel == suitableAffixLevel);
+			suitable = suitable.Where(a => a.AffixLevel == suitableAffixLevel).ToArray();
 
 			//if (i18 && !secondGroup)
 			//	suitable = suitable.Where(a => a.MaxLevel <= (Program.MaxLevel + 4));
@@ -347,8 +349,8 @@ namespace DiIiS_NA.GameServer.GSSystem.ItemsSystem
 			//else
 			//suitable = suitable.Where(a => itemTypes.ContainsAtLeastOne(a.I10));
 
-			if (suitable.Count() == 0)
+			if (!suitable.Any())
-				suitable = all_group.Where(a => a.AffixLevel == 1);
+				suitable = allGroup.Where(a => a.AffixLevel == 1).ToArray();
 
 			/*int suitableMaxLevel = suitable.OrderByDescending(a => a.AffixLevel).First().MaxLevel;
 			int suitableAffixLevel = suitable.OrderByDescending(a => a.AffixLevel).First().AffixLevel;
@@ -361,36 +363,36 @@ namespace DiIiS_NA.GameServer.GSSystem.ItemsSystem
 			if (suitable.Count() > 1 && i18 && !secondGroup && suitable.Where(a => a.Name.Contains("Secondary")).Count() > 0)
 				suitable = suitable.Where(a => a.Name.Contains("Secondary"));*/
 
-			if (suitable.Count() > 0)
+			if (suitable.TryPickRandom(out var randomAffix))
-				return suitable.ToList()[FastRandom.Instance.Next(0, suitable.Count())].Hash;
+				return randomAffix.Hash;
-			else
+
 			return -1;
 		}
 
-		public static void AddAffix(Item item, int AffixGbId, bool findFromTotal = false)
+		public static void AddAffix(Item item, int affixGbId, bool findFromTotal = false)
 		{
-			if (AffixGbId == -1) return;
+			if (affixGbId == -1) return;
 			AffixTable definition = null;
 
 			if (findFromTotal)
 			{
-				definition = AllAffix.Where(def => def.Hash == AffixGbId).FirstOrDefault();
+				definition = AllAffix.FirstOrDefault(def => def.Hash == affixGbId);
-				var testc = AllAffix.Where(def => def.ItemGroup[0] == AffixGbId || def.ItemGroup[1] == AffixGbId).FirstOrDefault();
+				var testc = AllAffix.FirstOrDefault(def => def.ItemGroup[0] == affixGbId || def.ItemGroup[1] == affixGbId);
 			}
 			else
 			{
-				definition = AffixList.Where(def => def.Hash == AffixGbId).FirstOrDefault();
+				definition = AffixList.FirstOrDefault(def => def.Hash == affixGbId);
 
 				if (definition == null)
 				{
-					definition = LegendaryAffixList.Where(def => def.Hash == AffixGbId).FirstOrDefault();
+					definition = LegendaryAffixList.FirstOrDefault(def => def.Hash == affixGbId);
 
 				}
 			}
 
 			if (definition == null)
 			{
-				Logger.Warn("Affix {0} was not found!", AffixGbId);
+				Logger.Warn("Affix {0} was not found!", affixGbId);
 				return;
 			}
 
@@ -444,7 +446,7 @@ namespace DiIiS_NA.GameServer.GSSystem.ItemsSystem
 					}
 				}
 			}
-			var affix = new Affix(AffixGbId);
+			var affix = new Affix(affixGbId);
 			affix.Score = (Scores.Count == 0 ? 0 : Scores.Average());
 			item.AffixList.Add(affix);
 			//item.Attributes[GameAttribute.Item_Quality_Level]++;
@@ -502,7 +504,7 @@ namespace DiIiS_NA.GameServer.GSSystem.ItemsSystem
 			bool itemIsPrefix = (FastRandom.Instance.Next(0, 2) > 0);
 			var randomName = D3.Items.RareItemName.CreateBuilder()
 				.SetItemNameIsPrefix(itemIsPrefix)
-				.SetSnoAffixStringList(itemIsPrefix ? SuffixAffixLists[FastRandom.Instance.Next(0, SuffixAffixLists.Count)] : PrefixAffixLists[FastRandom.Instance.Next(0, PrefixAffixLists.Count)])
+				.SetSnoAffixStringList(itemIsPrefix ? SuffixAffixLists.PickRandom() : PrefixAffixLists.PickRandom())
 				.SetAffixStringListIndex(FastRandom.Instance.Next(0, 6))
 				.SetItemStringListIndex(FastRandom.Instance.Next(0, 6));
 			return randomName.Build();

src/DiIiS-NA/D3-GameServer/GSSystem/ItemsSystem/Item.cs

@@ -1088,7 +1088,7 @@ namespace DiIiS_NA.GameServer.GSSystem.ItemsSystem
                                 break;
                         }
 
-                        it = items[RandomHelper.Next(@base, @base + 1)];
+                        it = items[RandomHelper.Next(@base, @base + 2)];
                         player.Inventory.PickUp(ItemGenerator.Cook(player, it));
                         break;
                     case -1249067448:
@@ -1102,7 +1102,7 @@ namespace DiIiS_NA.GameServer.GSSystem.ItemsSystem
                             "Unique_Shoulder_Set_09_x1", "Unique_Boots_Set_09_x1",
                             "Unique_Shoulder_Set_06_x1", "Unique_Boots_Set_06_x1"
                         };
-                        it = items[RandomHelper.Next(@base, @base + 1)];
+                        it = items[RandomHelper.Next(@base, @base + 2)];
                         player.Inventory.PickUp(ItemGenerator.Cook(player, it));
                         break;
                     case -1249067447:
@@ -1116,7 +1116,7 @@ namespace DiIiS_NA.GameServer.GSSystem.ItemsSystem
                             "Unique_Chest_Set_09_x1", "Unique_Pants_Set_09_x1",
                             "Unique_Chest_Set_06_x1", "Unique_Pants_Set_06_x1"
                         };
-                        it = items[RandomHelper.Next(@base, @base + 1)];
+                        it = items[RandomHelper.Next(@base, @base + 2)];
                         player.Inventory.PickUp(ItemGenerator.Cook(player, it));
                         break;
 

src/DiIiS-NA/D3-GameServer/GSSystem/ItemsSystem/ItemGenerator.cs

@@ -3,6 +3,7 @@ using System.Collections.Concurrent;
 using System.Collections.Generic;
 using System.Linq;
 using System.Reflection;
+using DiIiS_NA.Core.Extensions;
 using NHibernate.Linq;
 using DiIiS_NA.Core.Logging;
 using DiIiS_NA.Core.Storage;
@@ -335,7 +336,7 @@ namespace DiIiS_NA.GameServer.GSSystem.ItemsSystem
 						data.NumberOfCompletionSteps);
 					foreach (var step in data.QuestSteps)
 					{
-						int nextID = step.StepObjectiveSets.Count() > 0
+						int nextID = step.StepObjectiveSets.Any()
 							? step.StepObjectiveSets.First().FollowUpStepID
 							: -1;
 						Logger.Info("Step [{0}] {1} -> {2}", step.ID, step.Name, nextID);
@@ -1143,7 +1144,7 @@ namespace DiIiS_NA.GameServer.GSSystem.ItemsSystem
 
 		public static Item GenerateRandomGem(ActorSystem.Actor player, int level, bool is_goblin)
 		{
-			string gemName = GemNames[FastRandom.Instance.Next(GemNames.Count)];
+			string gemName = GemNames.PickRandom();
 
 			int lvl = Math.Max(player.Attributes[GameAttribute.Level], 20);
 			int gem_grade = ((lvl - 10) / 8) + 1;
@@ -1168,7 +1169,7 @@ namespace DiIiS_NA.GameServer.GSSystem.ItemsSystem
 			//var found = false;
 			//ItemTable itemDefinition = null;
 
-			if (pool.Count() == 0) return null;
+			if (pool.Count == 0) return null;
 			List<ItemTable> pool_filtered = pool.Where(it =>
 				it.SNOActor != -1 &&
 				it.WeaponDamageMin != 100.0f &&
@@ -1222,10 +1223,10 @@ namespace DiIiS_NA.GameServer.GSSystem.ItemsSystem
 				).ToList();
 			//*/
 
-			if (pool_filtered.Count() == 0) return null;
+			if (pool_filtered.Count == 0) return null;
 
 
-			ItemTable selected = pool_filtered[FastRandom.Instance.Next(0, pool_filtered.Count() - 1)];
+			ItemTable selected = pool_filtered.PickRandom();
 			return selected;
 		}
 
@@ -1234,7 +1235,7 @@ namespace DiIiS_NA.GameServer.GSSystem.ItemsSystem
 			//var found = false;
 			//ItemTable itemDefinition = null;
 
-			if (pool.Count() == 0) return null;
+			if (pool.Count == 0) return null;
 			List<ItemTable> pool_filtered = pool.Where(it =>
 				it.SNOActor != -1 &&
 				it.WeaponDamageMin != 100.0f &&
@@ -1262,9 +1263,9 @@ namespace DiIiS_NA.GameServer.GSSystem.ItemsSystem
 				  (it.Cost == 0)) && // i hope it catches all lore with npc spawned /xsochor
 				!(!GBIDHandlers.ContainsKey(it.Hash) && !AllowedItemTypes.Contains(it.ItemTypesGBID))
 			).ToList();
-			if (pool_filtered.Count() == 0) return null;
+			if (pool_filtered.Count == 0) return null;
 
-			ItemTable selected = pool_filtered[FastRandom.Instance.Next(0, pool_filtered.Count() - 1)];
+			ItemTable selected = pool_filtered.PickRandom();
 			return selected;
 		}
 

src/DiIiS-NA/D3-GameServer/GSSystem/MapSystem/Scene.cs

@@ -187,8 +187,8 @@ namespace DiIiS_NA.GameServer.GSSystem.MapSystem
 			Parent = parent;
 			Subscenes = new List<Scene>();
 			Scale = 1.0f;
-			AppliedLabels = new int[0];
+			AppliedLabels = Array.Empty<int>();
-			Field8 = new int[0];
+			Field8 = Array.Empty<int>();
 			Size = new Size(NavZone.V0.X * (int)NavZone.Float0, NavZone.V0.Y * (int)NavZone.Float0);
 			Position = position;
 			World.AddScene(this); // add scene to the world.

src/DiIiS-NA/D3-GameServer/GSSystem/MapSystem/World.cs

@@ -4,6 +4,7 @@ using System.Collections.Generic;
 using System.Drawing;
 using System.Linq;
 using System.Reflection;
+using DiIiS_NA.Core.Extensions;
 using DiIiS_NA.Core.Helpers.Hash;
 using DiIiS_NA.Core.Helpers.Math;
 using DiIiS_NA.Core.Logging;
@@ -240,7 +241,7 @@ namespace DiIiS_NA.GameServer.GSSystem.MapSystem
 				var scenes = new List<int> { 265624, 265655, 265678, 265693 };
 				foreach (var scene in scenes)
 				{
-					var wld = worlds[FastRandom.Instance.Next(worlds.Count)];
+					var wld = worlds.PickRandom();
 					PortalOverrides.Add(scene, wld);
 					worlds.Remove(wld);
 				}
@@ -282,7 +283,7 @@ namespace DiIiS_NA.GameServer.GSSystem.MapSystem
 			BuffManager.Update();
 			PowerManager.Update();
 
-			if (tickCounter % 6 == 0 && _flippyTimers.Count() > 0)
+			if (tickCounter % 6 == 0 && _flippyTimers.Any())
 			{
 				UpdateFlippy(tickCounter);
 			}
@@ -1033,7 +1034,7 @@ namespace DiIiS_NA.GameServer.GSSystem.MapSystem
 			else
 			{
 				_flippyTimers.Dequeue().Dequeue().Invoke();
-				if (_flippyTimers.Count() > 0)
+				if (_flippyTimers.Any())
 					_flippyTimers.Peek().Dequeue().Invoke();
 			}
 		}

src/DiIiS-NA/D3-GameServer/GSSystem/PlayerSystem/ConversationManager.cs

@@ -52,6 +52,7 @@ using DiIiS_NA.GameServer.Core.Types.Math;
 using DiIiS_NA.GameServer.MessageSystem.Message.Definitions.Conversation;
 //Blizzless Project 2022
 using System.Collections.Concurrent;
+using DiIiS_NA.Core.Extensions;
 //Blizzless Project 2022
 using DiIiS_NA.GameServer.MessageSystem.Message.Definitions.Quest;
 //Blizzless Project 2022
@@ -572,8 +573,7 @@ namespace DiIiS_NA.GameServer.GSSystem.PlayerSystem
 			}
 
 			if (asset.RootTreeNodes[lineIndex].ConvNodeType == 4)
-				currentLineNode = asset.RootTreeNodes[lineIndex]
+				currentLineNode = asset.RootTreeNodes[lineIndex].ChildNodes.PickRandom();
-					.ChildNodes[RandomHelper.Next(asset.RootTreeNodes[lineIndex].ChildNodes.Count)];
 			else
 				currentLineNode = asset.RootTreeNodes[lineIndex];
 

src/DiIiS-NA/D3-GameServer/GSSystem/PlayerSystem/Equipment.cs

@@ -261,7 +261,7 @@ namespace DiIiS_NA.GameServer.GSSystem.PlayerSystem
 
 		public Item GetItemByDynId(Player plr, uint dynId)
 		{
-			if (Items.Values.Where(it => it.IsRevealedToPlayer(plr) && it.DynamicID(plr) == dynId).Count() > 0)
+			if (Items.Values.Any(it => it.IsRevealedToPlayer(plr) && it.DynamicID(plr) == dynId))
 				return Items.Values.Single(it => it.IsRevealedToPlayer(plr) && it.DynamicID(plr) == dynId);
 			else
 				return null;

src/DiIiS-NA/D3-GameServer/GSSystem/PlayerSystem/Inventory.cs

@@ -286,9 +286,9 @@ namespace DiIiS_NA.GameServer.GSSystem.PlayerSystem
 			{
 				string itemType = originalItem.ItemDefinition.Name.Substring(3);
 				if (itemType.Contains("1HWeapon"))
-					itemType = OneHandedWeapons[FastRandom.Instance.Next(OneHandedWeapons.Count())];
+					itemType = OneHandedWeapons.PickRandom();
 				if (itemType.Contains("2HWeapon"))
-					itemType = TwoHandedWeapons[FastRandom.Instance.Next(TwoHandedWeapons.Count())];
+					itemType = TwoHandedWeapons.PickRandom();
 				if (itemType.Contains("Pants"))
 					itemType = "Legs";
 				_inventoryGrid.AddItem(ItemGenerator.GetRandomItemOfType(_owner, ItemGroup.FromString(itemType)));
@@ -739,15 +739,15 @@ namespace DiIiS_NA.GameServer.GSSystem.PlayerSystem
 				_owner.GrantAchievement(74987243307126);
 
 			var items = GetEquippedItems();
-			if (items.Where(item => ItemGroup.IsSubType(item.ItemType, "Belt_Barbarian")).Count() > 0 && (items.Where(item => ItemGroup.IsSubType(item.ItemType, "MightyWeapon1H")).Count() > 0 || items.Where(item => ItemGroup.IsSubType(item.ItemType, "MightyWeapon2H")).Count() > 0)) //barb
+			if (items.Any(item => ItemGroup.IsSubType(item.ItemType, "Belt_Barbarian")) && (items.Any(item => ItemGroup.IsSubType(item.ItemType, "MightyWeapon1H")) || items.Any(item => ItemGroup.IsSubType(item.ItemType, "MightyWeapon2H")))) //barb
 				_owner.GrantAchievement(74987243307046);
-			if (items.Where(item => ItemGroup.IsSubType(item.ItemType, "Cloak")).Count() > 0 && items.Where(item => ItemGroup.IsSubType(item.ItemType, "HandXbow")).Count() > 0) //dh
+			if (items.Any(item => ItemGroup.IsSubType(item.ItemType, "Cloak")) && items.Any(item => ItemGroup.IsSubType(item.ItemType, "HandXbow"))) //dh
 				_owner.GrantAchievement(74987243307058);
-			if (items.Where(item => ItemGroup.IsSubType(item.ItemType, "SpiritStone_Monk")).Count() > 0 && (items.Where(item => ItemGroup.IsSubType(item.ItemType, "FistWeapon")).Count() > 0 || items.Where(item => ItemGroup.IsSubType(item.ItemType, "CombatStaff")).Count() > 0)) //monk
+			if (items.Any(item => ItemGroup.IsSubType(item.ItemType, "SpiritStone_Monk")) && (items.Any(item => ItemGroup.IsSubType(item.ItemType, "FistWeapon")) || items.Any(item => ItemGroup.IsSubType(item.ItemType, "CombatStaff")))) //monk
 				_owner.GrantAchievement(74987243307544);
-			if (items.Where(item => ItemGroup.IsSubType(item.ItemType, "VoodooMask")).Count() > 0 && items.Where(item => ItemGroup.IsSubType(item.ItemType, "CeremonialDagger")).Count() > 0 && items.Where(item => ItemGroup.IsSubType(item.ItemType, "Mojo")).Count() > 0) //wd
+			if (items.Any(item => ItemGroup.IsSubType(item.ItemType, "VoodooMask")) && items.Any(item => ItemGroup.IsSubType(item.ItemType, "CeremonialDagger")) && items.Any(item => ItemGroup.IsSubType(item.ItemType, "Mojo"))) //wd
 				_owner.GrantAchievement(74987243307561);
-			if (items.Where(item => ItemGroup.IsSubType(item.ItemType, "WizardHat")).Count() > 0 && items.Where(item => ItemGroup.IsSubType(item.ItemType, "Wand")).Count() > 0 && items.Where(item => ItemGroup.IsSubType(item.ItemType, "Orb")).Count() > 0) //wiz
+			if (items.Any(item => ItemGroup.IsSubType(item.ItemType, "WizardHat")) && items.Any(item => ItemGroup.IsSubType(item.ItemType, "Wand")) && items.Any(item => ItemGroup.IsSubType(item.ItemType, "Orb"))) //wiz
 				_owner.GrantAchievement(74987243307582);
 		}
 
@@ -1099,23 +1099,23 @@ namespace DiIiS_NA.GameServer.GSSystem.PlayerSystem
 		{
 			if (client.Game.PvP) return;
 			if (_owner.IsCasting) _owner.StopCasting();
-			if (message is InventoryRequestMoveMessage) HandleInventoryRequestMoveMessage(message as InventoryRequestMoveMessage);
+			if (message is InventoryRequestMoveMessage moveMessage) HandleInventoryRequestMoveMessage(moveMessage);
-			else if (message is InventoryRequestQuickMoveMessage) HandleInventoryRequestQuickMoveMessage(message as InventoryRequestQuickMoveMessage);
+			else if (message is InventoryRequestQuickMoveMessage quickMoveMessage) HandleInventoryRequestQuickMoveMessage(quickMoveMessage);
-			else if (message is InventorySplitStackMessage) OnInventorySplitStackMessage(message as InventorySplitStackMessage);
+			else if (message is InventorySplitStackMessage stackMessage) OnInventorySplitStackMessage(stackMessage);
-			else if (message is InventoryStackTransferMessage) OnInventoryStackTransferMessage(message as InventoryStackTransferMessage);
+			else if (message is InventoryStackTransferMessage transferMessage) OnInventoryStackTransferMessage(transferMessage);
-			else if (message is InventoryDropItemMessage) OnInventoryDropItemMessage(message as InventoryDropItemMessage);
+			else if (message is InventoryDropItemMessage dropItemMessage) OnInventoryDropItemMessage(dropItemMessage);
-			else if (message is InventoryRequestUseMessage) OnInventoryRequestUseMessage(message as InventoryRequestUseMessage);
+			else if (message is InventoryRequestUseMessage useMessage) OnInventoryRequestUseMessage(useMessage);
-			else if (message is InventoryRequestSocketMessage) OnSocketMessage(message as InventoryRequestSocketMessage);
+			else if (message is InventoryRequestSocketMessage socketMessage) OnSocketMessage(socketMessage);
-			else if (message is InventoryGemsExtractMessage) OnGemsExtractMessage(message as InventoryGemsExtractMessage);
+			else if (message is InventoryGemsExtractMessage extractMessage) OnGemsExtractMessage(extractMessage);
-			else if (message is RequestBuySharedStashSlotsMessage) OnBuySharedStashSlots(message as RequestBuySharedStashSlotsMessage);
+			else if (message is RequestBuySharedStashSlotsMessage slotsMessage) OnBuySharedStashSlots(slotsMessage);
-			else if (message is InventoryIdentifyItemMessage) OnInventoryIdentifyItemMessage(message as InventoryIdentifyItemMessage);
+			else if (message is InventoryIdentifyItemMessage identifyItemMessage) OnInventoryIdentifyItemMessage(identifyItemMessage);
-			else if (message is InventoryUseIdentifyItemMessage) OnInventoryUseIdentifyItemMessage(message as InventoryUseIdentifyItemMessage);
+			else if (message is InventoryUseIdentifyItemMessage itemMessage) OnInventoryUseIdentifyItemMessage(itemMessage);
-			else if (message is TrySalvageMessage) OnTrySalvageMessage(message as TrySalvageMessage);
+			else if (message is TrySalvageMessage salvageMessage) OnTrySalvageMessage(salvageMessage);
-			else if (message is TrySalvageAllMessage) OnTrySalvageAllMessage(message as TrySalvageAllMessage);
+			else if (message is TrySalvageAllMessage allMessage) OnTrySalvageAllMessage(allMessage);
-			else if (message is CraftItemsMessage) OnCraftItemMessage(client, message as CraftItemsMessage);
+			else if (message is CraftItemsMessage itemsMessage) OnCraftItemMessage(client, itemsMessage);
-			else if (message is EnchantAffixMessage) OnEnchantAffixMessage(client, message as EnchantAffixMessage);
+			else if (message is EnchantAffixMessage affixMessage) OnEnchantAffixMessage(client, affixMessage);
-			else if (message is TryTransmogItemMessage) OnTryTransmogItemMessage(client, message as TryTransmogItemMessage);
+			else if (message is TryTransmogItemMessage transmogItemMessage) OnTryTransmogItemMessage(client, transmogItemMessage);
-			else if (message is DyeItemMessage) OnDyeItemMessage(client, message as DyeItemMessage);
+			else if (message is DyeItemMessage dyeItemMessage) OnDyeItemMessage(client, dyeItemMessage);
 			else if (message is InventoryRepairAllMessage) RepairAll();
 			else if (message is InventoryRepairEquippedMessage) RepairEquipment();
 
@@ -1201,6 +1201,7 @@ namespace DiIiS_NA.GameServer.GSSystem.PlayerSystem
 			if (!ReloadAffix.Definition.Name.Contains("Secondary")) filteredList = filteredList.Where( a => !a.Name.Contains("Secondary") );
 			if (!ReloadAffix.Definition.Name.Contains("Experience")) filteredList = filteredList.Where(a => !a.Name.Contains("Experience"));
 			if (!ReloadAffix.Definition.Name.Contains("Archon")) filteredList = filteredList.Where(a => !a.Name.Contains("Archon"));
+			// FIXME: always true?
 			if (ReloadAffix.Definition.Hash == ReloadAffix.Definition.Hash) filteredList = filteredList.Where(a => a.Hash != ReloadAffix.Definition.Hash);
 			if (Item.GBHandle.GBID == -4139386) filteredList = filteredList.Where( a => !a.Name.Contains("Str") && !a.Name.Contains("Dex") && !a.Name.Contains("Int") && !a.Name.Contains("Vit" ));
 
@@ -1211,22 +1212,27 @@ namespace DiIiS_NA.GameServer.GSSystem.PlayerSystem
 				if (Item.AffixFamilies.Contains(affix_group.First().AffixFamily0)) continue;
 				int s = Item.ItemDefinition.RequiredLevel;
 
-				bestDefinitions[affix_group.First().AffixFamily0] = affix_group.ToList()[FastRandom.Instance.Next(0, 1)];
+				bestDefinitions[affix_group.First().AffixFamily0] = affix_group.ToList()[FastRandom.Instance.Next(0, 1)]; // FIXME: random always returns 0
 			}
 
 			var SocketsAffixs = AffixGenerator.AllAffix.Where(a => a.Name.ToLower().Contains("1xx_socket") && itemTypes.ContainsAtLeastOne(a.ItemGroup)).ToList();
 
 			//if (bestDefinitions.Values.Where(a => a.Name.Contains("PoisonD")).Count() > 0) Logger.Debug("PoisonD in bestDefinitions");
 			List<AffixTable> selectedGroups = bestDefinitions.Values
-				.OrderBy(x => FastRandom.Instance.Next()) //random order
+				.OrderBy(_ => FastRandom.Instance.Next()) //random order
-				.GroupBy(x => (x.AffixFamily1 == -1) ? x.AffixFamily0 : x.AffixFamily1)
+				.GroupBy(x => x.AffixFamily1 == -1 ? x.AffixFamily0 : x.AffixFamily1)
-				.Select(x => x.First()) //only one from group
+				.Select(x => x.First()) // only one from group
-				.Take(1) //take needed amount
+				.Take(1) // take needed amount
 				.ToList();
 			if (selectedGroups.Count == 0)
 				if (ReloadAffix.Definition.Name.ToLower().Contains("socket"))
-					selectedGroups = SocketsAffixs.Where(x => x.OverrideLevelReq <= ReloadAffix.Definition.AffixLevelMax //&& x.AffixLevelMin == ReloadAffix.Definition.AffixLevelMin
+				{
-					).OrderBy(x => FastRandom.Instance.Next()).Take(1).ToList();
+					selectedGroups = SocketsAffixs
+						.Where(x => x.OverrideLevelReq <= ReloadAffix.Definition.AffixLevelMax) //&& x.AffixLevelMin == ReloadAffix.Definition.AffixLevelMin
+						.OrderBy(_ => FastRandom.Instance.Next())
+						.Take(1)
+						.ToList();
+				}
 				else
 					return;
 
@@ -2196,9 +2202,9 @@ namespace DiIiS_NA.GameServer.GSSystem.PlayerSystem
 
 		public Item GetItemByDynId(Player plr, uint dynId)
 		{
-			if (_inventoryGrid.Items.Values.Union(_stashGrid.Items.Values).Union(_equipment.Items.Values).Where(it => it.IsRevealedToPlayer(plr) && it.DynamicID(plr) == dynId).Count() > 0)
+			if (_inventoryGrid.Items.Values.Union(_stashGrid.Items.Values).Union(_equipment.Items.Values).Any(it => it.IsRevealedToPlayer(plr) && it.DynamicID(plr) == dynId))
 				return _inventoryGrid.Items.Values.Union(_stashGrid.Items.Values).Union(_equipment.Items.Values).Single(it => it.IsRevealedToPlayer(plr) && it.DynamicID(plr) == dynId);
-			else
+
 			return null;
 		}
 
@@ -2612,7 +2618,7 @@ namespace DiIiS_NA.GameServer.GSSystem.PlayerSystem
 
 		public bool GetItemBonus(GameAttributeB attributeB)
 		{
-			return Loaded ? (GetEquippedItems().Where(item => item.Attributes[attributeB] == true).Count() > 0) : _owner.Attributes[attributeB];
+			return Loaded ? GetEquippedItems().Any(item => item.Attributes[attributeB]) : _owner.Attributes[attributeB];
 		}
 
 		public float GetItemBonus(GameAttributeF attributeF, int attributeKey)

src/DiIiS-NA/D3-GameServer/GSSystem/PlayerSystem/Player.cs

@@ -1869,7 +1869,7 @@ public class Player : Actor, IMessageConsumer, IUpdateable
                 foreach (var oldp in World.GetActorsBySNO(ActorSno._x1_openworld_lootrunportal,
                              ActorSno._x1_openworld_tiered_rifts_portal)) oldp.Destroy();
 
-                map = maps[RandomHelper.Next(0, maps.Length)];
+                map = maps.PickRandom();
                 //map = 288823;
                 newTagMap.Add(new TagKeySNO(526850), new TagMapEntry(526850, (int)map, 0)); //World
                 newTagMap.Add(new TagKeySNO(526853), new TagMapEntry(526853, 288482, 0)); //Zone
@@ -1878,7 +1878,7 @@ public class Player : Actor, IMessageConsumer, IUpdateable
 
                 while (true)
                 {
-                    map = maps[RandomHelper.Next(0, maps.Length)];
+                    map = maps.PickRandom();
                     if (map != InGameClient.Game.WorldOfPortalNephalem) break;
                 }
 
@@ -2068,7 +2068,7 @@ public class Player : Actor, IMessageConsumer, IUpdateable
                 InGameClient.Game.NephalemGreater = true;
                 //disable banner while greater is active enable once boss is killed or portal is closed /advocaite
                 Attributes[GameAttribute.Banner_Usable] = false;
-                map = maps[RandomHelper.Next(0, maps.Length)];
+                map = maps.PickRandom();
                 newTagMap.Add(new TagKeySNO(526850), new TagMapEntry(526850, (int)map, 0)); //World
                 newTagMap.Add(new TagKeySNO(526853), new TagMapEntry(526853, 288482, 0)); //Zone
                 newTagMap.Add(new TagKeySNO(526851), new TagMapEntry(526851, 172, 0)); //Entry-Pointа
@@ -4669,8 +4669,7 @@ public class Player : Actor, IMessageConsumer, IUpdateable
     public void GrantAchievement(ulong id)
     {
         if (_unlockedAchievements.Contains(id)) return;
-        if (InGameClient.BnetClient.Account.GameAccount.Achievements
+        if (InGameClient.BnetClient.Account.GameAccount.Achievements.Any(a => a.AchievementId == id && a.Completion != -1)) return;
-                .Where(a => a.AchievementId == id && a.Completion != -1).Count() > 0) return;
         if (_unlockedAchievements.Contains(id)) return;
         _unlockedAchievements.Add(id);
         try
@@ -5699,13 +5698,10 @@ public class Player : Actor, IMessageConsumer, IUpdateable
 
     public Actor SpawnNephalemBoss(World world)
     {
-        var Boss = world.SpawnMonster(
+        var boss = world.SpawnMonster(ActorSnoExtensions.nephalemPortalBosses.PickRandom(), Position);
-            ActorSnoExtensions.nephalemPortalBosses[
+        boss.Attributes[GameAttribute.Bounty_Objective] = true;
-                RandomHelper.Next(0, ActorSnoExtensions.nephalemPortalBosses.Length - 1)], Position);
+        boss.Attributes[GameAttribute.Is_Loot_Run_Boss] = true;
-        Boss.Attributes[GameAttribute.Bounty_Objective] = true;
+        boss.Attributes.BroadcastChangedIfRevealed();
-        Boss.Attributes[GameAttribute.Is_Loot_Run_Boss] = true;
-        Boss.Attributes.BroadcastChangedIfRevealed();
-
 
         foreach (var plr in world.Players.Values)
             plr.InGameClient.SendMessage(new WorldSyncedDataMessage()
@@ -5720,7 +5716,7 @@ public class Player : Actor, IMessageConsumer, IUpdateable
             });
 
 
-        return Boss;
+        return boss;
     }
 
     public bool StartConversation(World world, int conversationId)
@@ -6147,13 +6143,13 @@ public class Player : Actor, IMessageConsumer, IUpdateable
     public int FindFollowerIndex(ActorSno sno)
     {
         if (HaveFollower(sno))
-            return _followerIndexes.Where(i => i.Value == sno).FirstOrDefault().Key;
+            return _followerIndexes.FirstOrDefault(i => i.Value == sno).Key;
-        else return 0;
+        return 0;
     }
 
     public int CountFollowers(ActorSno sno)
     {
-        return Followers.Values.Where(f => f == sno).Count();
+        return Followers.Values.Count(f => f == sno);
     }
 
     public int CountAllFollowers()

src/DiIiS-NA/D3-GameServer/GSSystem/PowerSystem/Implementations/General/ActorGhostedBuff.cs

@@ -13,6 +13,7 @@ using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
+using DiIiS_NA.Core.Extensions;
 
 namespace DiIiS_NA.GameServer.GSSystem.PowerSystem.Implementations
 {
@@ -127,7 +128,7 @@ namespace DiIiS_NA.GameServer.GSSystem.PowerSystem.Implementations
 
 			if (_tickTimer == null || _tickTimer.TimedOut)
 			{
-				var monster = ActorFactory.Create(Target.World, Monsters[DiIiS_NA.Core.Helpers.Math.FastRandom.Instance.Next(0, Monsters.Count())], new TagMap());
+				var monster = ActorFactory.Create(Target.World, Monsters.PickRandom(), new TagMap());
 				monster.EnterWorld(RandomDirection(Target.Position, 5f, Radius));
 				monster.HasLoot = (Target.World.Game.CurrentAct == 3000);
 				monster.Unstuck();
@@ -210,7 +211,7 @@ namespace DiIiS_NA.GameServer.GSSystem.PowerSystem.Implementations
 			{
 				for (int i = 0; i < 10; i++)
 				{
-					var monster = ActorFactory.Create(Target.World, Monsters[DiIiS_NA.Core.Helpers.Math.FastRandom.Instance.Next(0, Monsters.Count())], new TagMap());
+					var monster = ActorFactory.Create(Target.World, Monsters.PickRandom(), new TagMap());
 					monster.EnterWorld(RandomDirection(Target.Position, 5f, Radius));
 					monster.HasLoot = (Target.World.Game.CurrentAct == 3000);
 					monster.Unstuck();

src/DiIiS-NA/D3-GameServer/GSSystem/PowerSystem/Implementations/HeroSkills/Barbarian.cs

@@ -16,6 +16,7 @@ using System.Collections.Generic;
 using System.Linq;
 //Blizzless Project 2022
 using System.Threading.Tasks;
+using DiIiS_NA.Core.Extensions;
 
 namespace DiIiS_NA.GameServer.GSSystem.PowerSystem.Implementations
 {
@@ -1098,20 +1099,21 @@ namespace DiIiS_NA.GameServer.GSSystem.PowerSystem.Implementations
 					//once collision with target, RopeEffect up to ScriptFromula(5) times.
 					Actor curSource = hit;
 					var enemies = GetEnemiesInRadius(curSource.Position, ScriptFormula(12)).Actors.Where(actor => actor != curSource).ToList();
-					Actor curTarget = (enemies.Count > 0 ? enemies[DiIiS_NA.Core.Helpers.Math.FastRandom.Instance.Next(0, enemies.Count)] : null);
+					enemies.TryPickRandom(out var curTarget);
+
 					for (int i = 0; i <= ScriptFormula(5); i++)
 					{
 						if (curTarget == null) break;
 						curSource.AddRopeEffect(166450, curTarget);
 						curSource = curTarget;
 
-						AttackPayload ricochet_attack = new AttackPayload(this);
+						AttackPayload ricochetAttack = new AttackPayload(this);
-						ricochet_attack.AddWeaponDamage(ScriptFormula(15), DamageType.Physical);
+						ricochetAttack.AddWeaponDamage(ScriptFormula(15), DamageType.Physical);
-						ricochet_attack.SetSingleTarget(curTarget);
+						ricochetAttack.SetSingleTarget(curTarget);
-						ricochet_attack.Apply();
+						ricochetAttack.Apply();
 
-						var next_enemies = GetEnemiesInRadius(curSource.Position, ScriptFormula(12)).Actors.Where(actor => actor != curSource).ToList();
+						var nextEnemies = GetEnemiesInRadius(curSource.Position, ScriptFormula(12)).Actors.Where(actor => actor != curSource).ToList();
-						curTarget = (next_enemies.Count > 0 ? next_enemies[DiIiS_NA.Core.Helpers.Math.FastRandom.Instance.Next(0, next_enemies.Count)] : null);
+						nextEnemies.TryPickRandom(out curTarget);
 					}
 				}
 				if (Rune_D > 0)

src/DiIiS-NA/D3-GameServer/GSSystem/PowerSystem/Implementations/HeroSkills/Crusader.cs

@@ -15,6 +15,7 @@ using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
+using DiIiS_NA.Core.Extensions;
 
 namespace DiIiS_NA.GameServer.GSSystem.PowerSystem.Implementations
 {
@@ -1544,7 +1545,7 @@ namespace DiIiS_NA.GameServer.GSSystem.PowerSystem.Implementations
 					if (!targets.Actors.Any()) return;
 
 					AttackPayload shock = new AttackPayload(this);
-					shock.SetSingleTarget(targets.Actors[Rand.Next(targets.Actors.Count())]);
+					shock.SetSingleTarget(targets.Actors.PickRandom());
 					shock.Targets.Actors.First().PlayEffectGroup(312568);
 					shock.AddWeaponDamage(ScriptFormula(21), DamageType.Lightning);
 					shock.OnHit = (hitPayload) =>

src/DiIiS-NA/D3-GameServer/GSSystem/PowerSystem/Implementations/HeroSkills/DemonHunter.cs

@@ -17,6 +17,7 @@ using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
+using DiIiS_NA.Core.Extensions;
 
 namespace DiIiS_NA.GameServer.GSSystem.PowerSystem.Implementations
 {
@@ -300,10 +301,7 @@ namespace DiIiS_NA.GameServer.GSSystem.PowerSystem.Implementations
 			for (int i = 0; i < 8; i++)
 			{
 				var targets = GetEnemiesInRadius(User.Position, ScriptFormula(18)).Actors;
-				Actor target = null;
+				targets.TryPickRandom(out var target);
-
-				if (targets.Count() > 0)
-					target = targets[Rand.Next(targets.Count())];
 
 				var position = target == null ? RandomDirection(User.Position, 1f, 15f) : target.Position;
 				_CreateArrowPool(ActorSno._demonhunter_rainofarrows_indigo_buff, position, ScriptFormula(16), 2f);
@@ -1650,7 +1648,7 @@ namespace DiIiS_NA.GameServer.GSSystem.PowerSystem.Implementations
 				Vector3D targetPosition = RandomDirection(Target.Position, ScriptFormula(2));
 				var enemies = GetEnemiesInRadius(Target.Position, ScriptFormula(2)).Actors;
 				if (enemies.Count > 0)
-					targetPosition = enemies[FastRandom.Instance.Next(0, enemies.Count)].Position;
+					targetPosition = enemies.PickRandom().Position;
 				if (_damageTimer == null || _damageTimer.TimedOut)
 				{
 					_damageTimer = WaitSeconds(1f / 4f);
@@ -1700,11 +1698,11 @@ namespace DiIiS_NA.GameServer.GSSystem.PowerSystem.Implementations
 						var targets = GetEnemiesInRadius(Target.Position, ScriptFormula(2));
 						if (targets.Actors.Count > 0)
 						{
-							Vector3D nearby_position = targets.Actors[FastRandom.Instance.Next(0, targets.Actors.Count)].Position;
+							Vector3D nearbyPosition = targets.Actors.PickRandom().Position;
 							// TODO: check projectile actor
 							var rocket = new Projectile(this, ActorSno._dh_straferune_knives_knife, User.Position);
 							rocket.Position.Z += 6f;
-							rocket.Launch(nearby_position, ScriptFormula(10));
+							rocket.Launch(nearbyPosition, ScriptFormula(10));
 							rocket.OnCollision = (hit) =>
 							{
 								SpawnEffect(ActorSno._dh_strafe_sphereexplode, new Vector3D(hit.Position.X, hit.Position.Y, hit.Position.Z + 6f)); // impact effect (fix height)

src/DiIiS-NA/D3-GameServer/GSSystem/PowerSystem/Implementations/HeroSkills/Monk.cs

@@ -1350,7 +1350,7 @@ namespace DiIiS_NA.GameServer.GSSystem.PowerSystem.Implementations
 
 			if (Rune_A > 0)     //Barrage
 			{
-				if (dash.Targets.Actors.Count() > 0)
+				if (dash.Targets.Actors.Any())
 					AddBuff(dash.Targets.GetClosestTo(TargetPosition), new DashingBarrageDotBuff());
 			}
 
@@ -3114,7 +3114,7 @@ namespace DiIiS_NA.GameServer.GSSystem.PowerSystem.Implementations
 						Target.Attributes[GameAttribute.Damage_Weapon_Percent_Bonus] -= _unityDamageBonus;
 						Target.Attributes[GameAttribute.Damage_Percent_All_From_Skills] -= _unityDamageBonus;
 
-						_unityDamageBonus = 0.05f * Target.GetActorsInRange<Player>(ScriptFormula(0)).Count();
+						_unityDamageBonus = 0.05f * Target.GetActorsInRange<Player>(ScriptFormula(0)).Count;
 
 						Target.Attributes[GameAttribute.Damage_Weapon_Percent_Bonus] += _unityDamageBonus;
 						Target.Attributes[GameAttribute.Damage_Percent_All_From_Skills] += _unityDamageBonus;
@@ -3657,7 +3657,7 @@ namespace DiIiS_NA.GameServer.GSSystem.PowerSystem.Implementations
 			if (Rune_B > 0)     //Water Ally
 			{
 				var targets = GetEnemiesInRadius(petAlly.Position, 20f, 7).Actors;
-				if (targets.Count() <= 0) yield break;
+				if (!targets.Any()) yield break;
 
 				foreach (var target in targets)
 				{

src/DiIiS-NA/D3-GameServer/GSSystem/PowerSystem/Implementations/HeroSkills/Necromancer.cs

@@ -19,6 +19,7 @@ using System.Text;
 using System.Threading.Tasks;
 using DiIiS_NA.GameServer.GSSystem.PlayerSystem;
 using DiIiS_NA.GameServer.MessageSystem.Message.Definitions.Pet;
+using DiIiS_NA.Core.Extensions;
 
 namespace DiIiS_NA.GameServer.GSSystem.PowerSystem.Implementations
 {
@@ -1985,42 +1986,14 @@ namespace DiIiS_NA.GameServer.GSSystem.PowerSystem.Implementations
             User.PlayEffect(Effect.PlayEffectGroup, 466026);
             if (Target != null)
             {
-                DamageType damageType = DamageType.Physical;
-                bool greaterDamage = false;
-                
-                // Enforcer
                 if (Rune_A > 0)
-                {
-                }
-                // Frenzy
-                else if (Rune_B > 0)
-                {
                     UsePrimaryResource(EvalTag(PowerKeys.ResourceCost));
-                }
-                // Dark Mending
-                else if (Rune_C > 0)
-                {
                 UsePrimaryResource(EvalTag(PowerKeys.ResourceCost));
-                    damageType = DamageType.Cold;
-                }
-                // Freezing Grasp
-                else if (Rune_D > 0)
-                {
-                    UsePrimaryResource(EvalTag(PowerKeys.ResourceCost));
-                    damageType = DamageType.Poison;
-                }
-                else if (Rune_E > 0)
-                {
-                    UsePrimaryResource(EvalTag(PowerKeys.ResourceCost));
-                    greaterDamage = true;
-                    damageType = DamageType.Poison;
-                    Logger.Warn("Rune E not implemented for Necromancer's Command Skeletons");
-                }
 
-                foreach (var skeleton in ((Player)User).NecroSkeletons)
+                foreach (var Skelet in (User as PlayerSystem.Player).NecroSkeletons)
                 {
                     //User.PlayEffectGroup(474172);
-                    ActorMover mover = new ActorMover(skeleton);
+                    ActorMover mover = new ActorMover(Skelet);
                     mover.MoveArc(Target.Position, 6, -0.1f, new ACDTranslateArcMessage
                     {
                         //Field3 = 303110, // used for male barb leap, not needed?
@@ -2029,65 +2002,13 @@ namespace DiIiS_NA.GameServer.GSSystem.PowerSystem.Implementations
                         Gravity = 0.6f,
                         PowerSNO = PowerSNO
                     });
-                    skeleton.Position = Target.Position;
+                    Skelet.Position = Target.Position;
-                    skeleton.SetVisible(true);
+                    Skelet.PlayEffectGroup(474172);
-                    skeleton.Hidden = false;
-                    skeleton.PlayEffectGroup(474172);
 
-                    AttackPayload attack = new AttackPayload(this)
+
-                    {
+                    WeaponDamage(Target, 0.50f, DamageType.Physical);
-                        Target = Target
-                    };
-                    attack.AddWeaponDamage(greaterDamage ? skeleton.Attributes[GameAttribute.Damage_Min, 0] * 2.15f : skeleton.Attributes[GameAttribute.Damage_Min, 0], damageType);
-                    attack.OnHit = hit =>
-                    {
-                        if (Rune_C > 0)
-                        {
-                            if (!HasBuff<DebuffFrozen>(hit.Target))
-                            {
-                                AddBuff(hit.Target, new DebuffFrozen(WaitSeconds(3.0f)));
-                            }
-                        }
-                    };
-                    attack.Apply();
                     //AddBuff(Target, new DebuffStunned(WaitSeconds(0.3f)));
                 }
-
-                // var player = (Player)User;
-                // if (player.ActiveSkeletons)
-                // {
-                //     while (player.NecroSkeletons.Count < 7)
-                //     {
-                //         var skeleton = new NecromancerSkeleton_A(World, ActorSno._p6_necro_commandskeletons_a, player);
-                //         skeleton.Brain.DeActivate();
-                //         skeleton.Scale = 1.2f;
-                //
-                //         skeleton.EnterWorld(PowerContext.RandomDirection(player.Position, 3f, 8f));
-                //         player.NecroSkeletons.Add(skeleton);
-                //         /*this.InGameClient.SendMessage(new PetMessage()
-                //         {
-                //             Owner = this.PlayerIndex,
-                //             Index = this.CountFollowers(473147),
-                //             PetId = Skeleton.DynamicID(this),
-                //             Type = 70,
-                //         });
-                //         //*/
-                //         skeleton.Brain.Activate();
-                //     }
-                // }
-                // else
-                // {
-                //     foreach (var skel in player.NecroSkeletons)
-                //     {
-                //         player.InGameClient.SendMessage(new PetDetachMessage()
-                //         {
-                //             PetId = skel.GlobalID
-                //         });
-                //         World.Leave(skel);
-                //     }
-                //
-                //     player.NecroSkeletons.Clear();
-                // }
             }
             yield break;
         }

src/DiIiS-NA/D3-GameServer/GSSystem/PowerSystem/Implementations/HeroSkills/WitchDoctor.cs

@@ -15,6 +15,7 @@ using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Threading.Tasks;
+using DiIiS_NA.Core.Extensions;
 
 namespace DiIiS_NA.GameServer.GSSystem.PowerSystem.Implementations
 {
@@ -236,7 +237,7 @@ namespace DiIiS_NA.GameServer.GSSystem.PowerSystem.Implementations
 					for (int i = 0; i < frogs.Length; ++i)
 					{
 						if (frogs[i] == null) continue;
-						var target = PowerMath.GenerateSpreadPositions(frogs[i].Position, PowerMath.TranslateDirection2D(User.Position, TargetPosition, frogs[i].Position, 10f), 30f, 3)[FastRandom.Instance.Next(0, 3)];
+						var target = PowerMath.GenerateSpreadPositions(frogs[i].Position, PowerMath.TranslateDirection2D(User.Position, TargetPosition, frogs[i].Position, 10f), 30f, 3).PickRandom();
 						//frogs[i].LaunchArc(new Vector3D(RandomDirection(frogs[i].Position, 5f, 10f)), 3f, -0.03f);
 						frogs[i].LaunchArc(target, 3f, -0.03f);
 					}
@@ -1035,7 +1036,7 @@ namespace DiIiS_NA.GameServer.GSSystem.PowerSystem.Implementations
 					var targets = GetEnemiesInRadius(grenadeN.Position, ScriptFormula(11));
 					if (targets.Actors.Count > 0)
 					{
-						var target = targets.Actors[FastRandom.Instance.Next(0, targets.Actors.Count)];
+						var target = targets.Actors.PickRandom();
 
 						grenadeN.LaunchArc(PowerMath.TranslateDirection2D(grenadeN.Position, target.Position, grenadeN.Position, PowerMath.Distance2D(grenadeN.Position, target.Position)), height, ScriptFormula(2));
 						yield return grenadeN.ArrivalTime;
@@ -2316,7 +2317,7 @@ namespace DiIiS_NA.GameServer.GSSystem.PowerSystem.Implementations
 					if (!HasBuff<GargantuanEnrageCDBuff>(Target))
 					{
 						var targets = GetEnemiesInRadius(Target.Position, 10f);
-						if (targets.Actors.Count >= 5 || targets.Actors.Where(a => a is Boss || a is Champion || a is Rare || a is Unique).Count() > 1)
+						if (targets.Actors.Count >= 5 || targets.Actors.Count(a => a is Boss or Champion or Rare or Unique) > 1)
 						{
 							AddBuff(Target, new GargantuanEnrageCDBuff());
 							AddBuff(Target, new GargantuanEnrageBuff());
@@ -2704,7 +2705,7 @@ namespace DiIiS_NA.GameServer.GSSystem.PowerSystem.Implementations
 			if (payload is HitPayload && payload.Target == Target)
 			{
 				Player usr = (Target as Player);
-				float dmg = (payload as HitPayload).TotalDamage * ScriptFormula(9) / usr.Followers.Values.Where(a => a == ActorSno._wd_zombiedog).Count();
+				float dmg = (payload as HitPayload).TotalDamage * ScriptFormula(9) / usr.Followers.Values.Count(a => a == ActorSno._wd_zombiedog);
 				(payload as HitPayload).TotalDamage *= 1 - ScriptFormula(9);
 				//List<Actor> dogs = GetAlliesInRadius(Target.Position, 100f).Actors.Where(a => a.ActorSNO.Id == 51353).ToList();
 				foreach (var dog in GetAlliesInRadius(Target.Position, 100f).Actors.Where(a => a.SNO == ActorSno._wd_zombiedog))
@@ -2738,7 +2739,7 @@ namespace DiIiS_NA.GameServer.GSSystem.PowerSystem.Implementations
 			if (payload is HitPayload && payload.Context.User == Target)
 			{
 				Player master = (Target as ZombieDog).Master as Player;
-				float heal = (payload as HitPayload).TotalDamage * ScriptFormula(8) / (master.Followers.Values.Where(a => a == ActorSno._wd_zombiedog).Count() + 1);
+				float heal = (payload as HitPayload).TotalDamage * ScriptFormula(8) / (master.Followers.Values.Count(a => a == ActorSno._wd_zombiedog) + 1);
 				(payload as HitPayload).TotalDamage *= 1 - ScriptFormula(9);
 				master.AddHP(heal);
 				foreach (var dog in GetAlliesInRadius(Target.Position, 100f).Actors.Where(a => a.SNO == ActorSno._wd_zombiedog))

src/DiIiS-NA/D3-GameServer/GSSystem/PowerSystem/Implementations/HeroSkills/Wizard.cs

@@ -17,6 +17,7 @@ using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
+using DiIiS_NA.Core.Extensions;
 
 namespace DiIiS_NA.GameServer.GSSystem.PowerSystem.Implementations
 {
@@ -724,7 +725,7 @@ namespace DiIiS_NA.GameServer.GSSystem.PowerSystem.Implementations
 
 				Vector3D[] spawnPoints = PowerMath.GenerateSpreadPositions(TgtPosition, TgtPosition + new Vector3D(3f, 0, 0), 120, 3);
 
-				for (int i = 0; i < spawnPoints.Count(); i++)
+				for (int i = 0; i < spawnPoints.Length; i++)
 				{
 					if (!User.World.CheckLocationForFlag(spawnPoints[i], DiIiS_NA.Core.MPQ.FileFormats.Scene.NavCellFlags.AllowWalk))
 						continue;
@@ -801,7 +802,7 @@ namespace DiIiS_NA.GameServer.GSSystem.PowerSystem.Implementations
 							Actor curTarget = target;
 							Actor nextTarget = null;
 							var c = 0;
-							while (targets.Count() < 3)
+							while (targets.Count < 3)
 							{
 								nextTarget = GetEnemiesInRadius(curTarget.Position, 6f).Actors.FirstOrDefault(a => !targets.Contains(a));
 								if (nextTarget == null) break;
@@ -1270,7 +1271,7 @@ namespace DiIiS_NA.GameServer.GSSystem.PowerSystem.Implementations
 					SnapFacing = true,
 					AnimationTag = 69728,
 				});
-				TargetPosition = PowerMath.GenerateSpreadPositions(Twister.Position, TargetPosition, 20f, 3)[FastRandom.Instance.Next(0, 3)];
+				TargetPosition = PowerMath.GenerateSpreadPositions(Twister.Position, TargetPosition, 20f, 3).PickRandom();
 
 				if (Rune_B > 0)     //Raging Storm
 				{
@@ -1299,7 +1300,7 @@ namespace DiIiS_NA.GameServer.GSSystem.PowerSystem.Implementations
 								SnapFacing = true,
 								AnimationTag = 69728,
 							});
-							TargetPosition = PowerMath.GenerateSpreadPositions(bigTwister.Position, TargetPosition, 20f, 3)[FastRandom.Instance.Next(0, 3)];
+							TargetPosition = PowerMath.GenerateSpreadPositions(bigTwister.Position, TargetPosition, 20f, 3).PickRandom();
 							WeaponDamage(GetEnemiesInRadius(bigTwister.Position, 12f), bigMultiplier, DamageType.Arcane);
 						};
 						Twister.Destroy();
@@ -1980,7 +1981,7 @@ namespace DiIiS_NA.GameServer.GSSystem.PowerSystem.Implementations
 						AddBuff(hitPayload.Target, new ShatterDebuff(User, ScriptFormula(14), WaitSeconds(2f)));
 				}
 				if (Rune_E > 0)         //Deep Freeze
-					if (nova.Targets.Actors.Count() > ScriptFormula(13))
+					if (nova.Targets.Actors.Count > ScriptFormula(13))
 						if (!HasBuff<DeepFreezeChCBuff>(User))
 							AddBuff(User, new DeepFreezeChCBuff(ScriptFormula(18), WaitSeconds(ScriptFormula(19))));
 			};
@@ -2816,7 +2817,7 @@ namespace DiIiS_NA.GameServer.GSSystem.PowerSystem.Implementations
 					if (!(Rune_B > 0 || Rune_C > 0))
 						proj.Destroy();
 				};
-				var destination = ((Rune_B > 0 || Rune_C > 0) ? TargetPosition : PowerMath.GenerateSpreadPositions(User.Position, TargetPosition, 5f, 9)[FastRandom.Instance.Next(0, 9)]);
+				var destination = ((Rune_B > 0 || Rune_C > 0) ? TargetPosition : PowerMath.GenerateSpreadPositions(User.Position, TargetPosition, 5f, 9).PickRandom());
 				proj.Launch(destination, ScriptFormula(6));
 				//WaitSeconds(ScriptFormula(25));
 			}

src/DiIiS-NA/D3-GameServer/GSSystem/PowerSystem/Payloads/AttackPayload.cs

@@ -141,7 +141,7 @@ namespace DiIiS_NA.GameServer.GSSystem.PowerSystem.Payloads
 			float additionalCritChance = chcBonus;
 
 			if (user is Player && (user as Player).SkillSet.HasPassive(338859)) //Single Out
-				if (target.GetMonstersInRange(20f).Where(m => m != target).Count() == 0)
+				if (target.GetMonstersInRange(20f).All(m => m == target))
 					additionalCritChance += 0.25f;
 
 			//Wizard -> Spectral Blade -> Ice Blades

src/DiIiS-NA/D3-GameServer/GSSystem/PowerSystem/Projectile.cs

@@ -256,7 +256,7 @@ namespace DiIiS_NA.GameServer.GSSystem.PowerSystem
 
 				var targets = Context.GetEnemiesInRadius(ChainCurrent.Position, ChainRadius);
 				targets.Actors.Remove(ChainCurrent);
-				if (targets.Actors.Count() == 0)
+				if (!targets.Actors.Any())
 				{
 					Destroy();
 					return;
@@ -266,7 +266,7 @@ namespace DiIiS_NA.GameServer.GSSystem.PowerSystem
 				nextProj.Position.Z += 5f;
 
 				nextProj.ChainCurrent = ChainCurrent;
-				nextProj.ChainNextPos = targets.Actors[PowerContext.Rand.Next(targets.Actors.Count())].Position;
+				nextProj.ChainNextPos = targets.Actors[PowerContext.Rand.Next(targets.Actors.Count)].Position;
 
 				nextProj.ChainTargetsRemain = ChainTargetsRemain;
 				nextProj.ChainIteration = ChainIteration + 1;

src/DiIiS-NA/D3-GameServer/GSSystem/QuestSystem/Events.cs

@@ -9,6 +9,7 @@ using DiIiS_NA.GameServer.MessageSystem;
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using DiIiS_NA.Core.Extensions;
 
 namespace DiIiS_NA.GameServer.GSSystem.QuestSystem
 {
@@ -380,7 +381,7 @@ namespace DiIiS_NA.GameServer.GSSystem.QuestSystem
 					var world = Game.GetWorld(WorldSno.a2dun_aqd_oasis_randomfacepuzzle_large);
 					SetActorOperable(world, ActorSno._a2dun_aqd_godhead_door_largepuzzle, false);
 					var spots = world.GetActorsBySNO(ActorSno._boxtrigger__one_shot_);
-					world.SpawnMonster(ActorSno._a2dun_aqd_act_lever_facepuzzle_01, spots[FastRandom.Instance.Next(spots.Count)].Position);
+					world.SpawnMonster(ActorSno._a2dun_aqd_act_lever_facepuzzle_01, spots.PickRandom().Position);
 					ListenInteract(ActorSno._a2dun_aqd_act_lever_facepuzzle_01, 1, new SideAdvance());
 				})
 			});
@@ -460,7 +461,7 @@ namespace DiIiS_NA.GameServer.GSSystem.QuestSystem
                     var world = Game.GetWorld(WorldSno.a2dun_aqd_oasis_randomfacepuzzle_small);
                     SetActorOperable(world, ActorSno._a2dun_aqd_godhead_door, false);
 					var spots = world.GetActorsBySNO(ActorSno._boxtrigger__one_shot_);
-                    world.SpawnMonster(ActorSno._a2dun_aqd_act_lever_facepuzzle_01, spots[FastRandom.Instance.Next(spots.Count)].Position);
+                    world.SpawnMonster(ActorSno._a2dun_aqd_act_lever_facepuzzle_01, spots.PickRandom().Position);
                     ListenInteract(ActorSno._a2dun_aqd_act_lever_facepuzzle_01, 1, new SideAdvance());
 				})
 			});

src/DiIiS-NA/D3-GameServer/GSSystem/QuestSystem/QuestEvents/Implementations/Act I/CryptPortals.cs

@@ -7,6 +7,7 @@ using DiIiS_NA.GameServer.MessageSystem;
 using System.Linq;
 using System;
 using System.Collections.Generic;
+using DiIiS_NA.Core.Extensions;
 using DiIiS_NA.LoginServer.AccountsSystem;
 using DiIiS_NA.GameServer.GSSystem.QuestSystem.QuestEvents;
 using DiIiS_NA.GameServer.Core.Types.Math;
@@ -47,10 +48,10 @@ namespace DiIiS_NA.GameServer.GSSystem.QuestSystem.QuestEvents.Implementations
 			if (portals.Count == 0) return;
 			foreach (var dest in PortalDests)
 			{
-				var random_portal = portals[FastRandom.Instance.Next(0, portals.Count - 1)];
+				var randomPortal = portals.PickRandom();
-				random_portal.Destination = dest;
+				randomPortal.Destination = dest;
 				//portal.EnterWorld(random_spot);
-				portals.Remove(random_portal);
+				portals.Remove(randomPortal);
 			}
 		}
 	}

src/DiIiS-NA/D3-GameServer/GSSystem/QuestSystem/QuestEvents/Implementations/Act I/SpawnSouls.cs

@@ -7,6 +7,7 @@ using DiIiS_NA.GameServer.MessageSystem;
 using System.Linq;
 using System;
 using System.Collections.Generic;
+using DiIiS_NA.Core.Extensions;
 using DiIiS_NA.LoginServer.AccountsSystem;
 using DiIiS_NA.GameServer.GSSystem.QuestSystem.QuestEvents;
 using DiIiS_NA.GameServer.Core.Types.Math;
@@ -56,9 +57,9 @@ namespace DiIiS_NA.GameServer.GSSystem.QuestSystem.QuestEvents.Implementations
 
 			for (int i = 0; i < 6; i++)
 			{
-				var rand_pos = ActorsVector3D[FastRandom.Instance.Next(ActorsVector3D.Count())];
+				var randPos = ActorsVector3D.PickRandom();
-				world.SpawnMonster(ActorSno._ghost_jail_prisoner, rand_pos);
+				world.SpawnMonster(ActorSno._ghost_jail_prisoner, randPos);
-				ActorsVector3D.Remove(rand_pos);
+				ActorsVector3D.Remove(randPos);
 			}
 		}
 

src/DiIiS-NA/Program.cs

@@ -106,7 +106,7 @@ namespace DiIiS_NA
                         var cpuTime = proc.TotalProcessorTime;
                         var text =
                             $"{name} | " +
-                            $"{PlayerManager.OnlinePlayers.Count()} onlines in {PlayerManager.OnlinePlayers.Count(s => s.InGameClient?.Player?.World != null)} worlds | " +
+                            $"{PlayerManager.OnlinePlayers.Count} onlines in {PlayerManager.OnlinePlayers.Count(s => s.InGameClient?.Player?.World != null)} worlds | " +
                             $"Memory: {totalMemory:0.000} GB | " +
                             $"CPU Time: {cpuTime.ToSmallText()} | " +
                             $"Uptime: {uptime.ToSmallText()}";

src/DiIiS-NA/REST/Extensions/Singleton.cs

@@ -23,7 +23,7 @@ namespace DiIiS_NA.REST.Extensions
                         if (instance == null)
                         {
                             ConstructorInfo constructorInfo = typeof(T).GetConstructor(BindingFlags.NonPublic | BindingFlags.Instance, null, Type.EmptyTypes, null);
-                            instance = (T)constructorInfo.Invoke(new object[0]);
+                            instance = (T)constructorInfo.Invoke(Array.Empty<object>());
                         }
                     }
                 }