Core/Errors: Stop using System.Diagnostics.Contracts, Its just closing the server without error or warning. We now log the error and then throw a exception

Source/BNetServer/Server.cs

@@ -20,6 +20,7 @@ using Framework.Configuration;
 using Framework.Database;
 using Framework.Networking;
 using System;
+using System.Diagnostics;
 using System.Globalization;
 using System.Timers;
 
@@ -41,7 +42,7 @@ namespace BNetServer
                 Environment.Exit(-1);
             };
 
-            if (!ConfigMgr.Load(System.Diagnostics.Process.GetCurrentProcess().ProcessName + ".conf"))
+            if (!ConfigMgr.Load(Process.GetCurrentProcess().ProcessName + ".conf"))
                 ExitNow();
 
             // Initialize the database connection

Source/Framework/Collections/BitSet.cs

@@ -15,7 +15,6 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-using System.Diagnostics.Contracts;
 
 namespace System.Collections
 {
@@ -27,7 +26,6 @@ namespace System.Collections
             {
                 throw new ArgumentOutOfRangeException("length");
             }
-            Contract.EndContractBlock();
 
             _mArray = new uint[GetArrayLength(length, BitsPerInt32)];
             _mLength = length;
@@ -47,7 +45,7 @@ namespace System.Collections
             {
                 throw new ArgumentNullException("values");
             }
-            Contract.EndContractBlock();
+
             // this value is chosen to prevent overflow when computing m_length
             if (values.Length > UInt32.MaxValue / BitsPerInt32)
             {
@@ -68,7 +66,6 @@ namespace System.Collections
             {
                 throw new ArgumentNullException("bits");
             }
-            Contract.EndContractBlock();
 
             int arrayLength = GetArrayLength(bits._mLength, BitsPerInt32);
             _mArray = new uint[arrayLength];
@@ -97,7 +94,6 @@ namespace System.Collections
             {
                 throw new ArgumentOutOfRangeException("index");
             }
-            Contract.EndContractBlock();
 
             return (Convert.ToInt64(_mArray[index / 32]) & (1 << (index % 32))) != 0;
         }
@@ -108,7 +104,6 @@ namespace System.Collections
             {
                 throw new ArgumentOutOfRangeException("index");
             }
-            Contract.EndContractBlock();
 
             if (value)
             {
@@ -140,7 +135,6 @@ namespace System.Collections
                 throw new ArgumentNullException("value");
             if (Length != value.Length)
                 throw new ArgumentException();
-            Contract.EndContractBlock();
 
             int ints = GetArrayLength(_mLength, BitsPerInt32);
             for (int i = 0; i < ints; i++)
@@ -158,7 +152,6 @@ namespace System.Collections
                 throw new ArgumentNullException("value");
             if (Length != value.Length)
                 throw new ArgumentException();
-            Contract.EndContractBlock();
 
             int ints = GetArrayLength(_mLength, BitsPerInt32);
             for (int i = 0; i < ints; i++)
@@ -176,7 +169,6 @@ namespace System.Collections
                 throw new ArgumentNullException("value");
             if (Length != value.Length)
                 throw new ArgumentException();
-            Contract.EndContractBlock();
 
             int ints = GetArrayLength(_mLength, BitsPerInt32);
             for (int i = 0; i < ints; i++)
@@ -204,7 +196,6 @@ namespace System.Collections
         {
             get
             {
-                Contract.Ensures(Contract.Result<int>() >= 0);
                 return _mLength;
             }
             set
@@ -213,7 +204,6 @@ namespace System.Collections
                 {
                     throw new ArgumentOutOfRangeException("value");
                 }
-                Contract.EndContractBlock();
 
                 int newints = GetArrayLength(value, BitsPerInt32);
                 if (newints > _mArray.Length || newints + ShrinkThreshold < _mArray.Length)
@@ -255,8 +245,6 @@ namespace System.Collections
             if (array.Rank != 1)
                 throw new ArgumentException();
 
-            Contract.EndContractBlock();
-
             if (array is uint[])
             {
                 Array.Copy(_mArray, 0, array, index, GetArrayLength(_mLength, BitsPerInt32));
@@ -288,17 +276,12 @@ namespace System.Collections
         {
             get
             {
-                Contract.Ensures(Contract.Result<int>() >= 0);
-
                 return _mLength;
             }
         }
 
         public Object Clone()
         {
-            Contract.Ensures(Contract.Result<Object>() != null);
-            Contract.Ensures(((BitArray)Contract.Result<Object>()).Length == this.Length);
-
             BitSet bitArray = new BitSet(_mArray);
             bitArray._version = _version;
             bitArray._mLength = _mLength;
@@ -345,7 +328,7 @@ namespace System.Collections
 
         private static int GetArrayLength(int n, int div)
         {
-            Contract.Assert(div > 0, "GetArrayLength: div arg must be greater than 0");
+            Cypher.Assert(div > 0, "GetArrayLength: div arg must be greater than 0");
             return n > 0 ? (((n - 1) / div) + 1) : 0;
         }
 

Source/Framework/Database/QueryCallback.cs

@@ -17,7 +17,6 @@
 
 using System;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 using System.Threading.Tasks;
 
 namespace Framework.Database
@@ -68,7 +67,7 @@ namespace Framework.Database
                     bool hasNext = _result != null;
                     if (_callbacks.Count == 0)
                     {
-                        Contract.Assert(!hasNext);
+                        Cypher.Assert(!hasNext);
                         return QueryCallbackStatus.Completed;
                     }
 

Source/Framework/Debugging/Errors.cs

@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2012-2018 CypherCore <http://github.com/CypherCore>
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+using System;
+using System.Runtime.CompilerServices;
+
+public class Cypher
+{
+    public static void Assert(bool value, string message = "", [CallerMemberName]string memberName = "")
+    {
+        if (!value)
+        {
+            if (!message.IsEmpty())
+                Log.outFatal(LogFilter.Server, message);
+
+            throw new Exception(memberName);
+        }
+    }
+}

Source/Framework/Dynamic/EventMap.cs

@@ -1,4 +1,21 @@
-using System;
+/*
+ * Copyright (C) 2012-2018 CypherCore <http://github.com/CypherCore>
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+using System;
 using System.Collections.Generic;
 using System.Linq;
 

Source/Framework/Dynamic/EventSystem.cs

@@ -16,7 +16,6 @@
  */
 
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 using System.Linq;
 
 namespace Framework.Dynamic
@@ -112,13 +111,13 @@ namespace Framework.Dynamic
 
         public void ScheduleAbort()
         {
-            Contract.Assert(IsRunning(), "Tried to scheduled the abortion of an event twice!");
+            Cypher.Assert(IsRunning(), "Tried to scheduled the abortion of an event twice!");
             m_abortState = AbortState.Scheduled;
         }
 
         public void SetAborted()
         {
-            Contract.Assert(!IsAborted(), "Tried to abort an already aborted event!");
+            Cypher.Assert(!IsAborted(), "Tried to abort an already aborted event!");
             m_abortState = AbortState.Aborted;
         }
 

Source/Framework/Dynamic/Reference.cs

@@ -16,7 +16,6 @@
  */
 
 using Framework.Collections;
-using System.Diagnostics.Contracts;
 
 namespace Framework.Dynamic
 {
@@ -42,7 +41,7 @@ namespace Framework.Dynamic
         // Create new link
         public void link(TO toObj, FROM fromObj)
         {
-            Contract.Assert(fromObj != null);                                // fromObj MUST not be NULL
+            Cypher.Assert(fromObj != null);                                // fromObj MUST not be NULL
             if (isValid())
                 unlink();
             if (toObj != null)

Source/Framework/Dynamic/TaskScheduler.cs

@@ -17,7 +17,6 @@
 
 using System;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 using System.Linq;
 
 namespace Framework.Dynamic
@@ -622,7 +621,7 @@ namespace Framework.Dynamic
         {
             // This was adapted to TC to prevent static analysis tools from complaining.
             // If you encounter this assertion check if you repeat a TaskContext more then 1 time!
-            Contract.Assert(!_consumed, "Bad task logic, task context was consumed already!");
+            Cypher.Assert(!_consumed, "Bad task logic, task context was consumed already!");
         }
 
         /// <summary>

Source/Framework/IO/StringArguments.cs

@@ -16,7 +16,6 @@
  */
 
 using System;
-using System.Diagnostics.Contracts;
 using System.Text.RegularExpressions;
 
 namespace Framework.IO
@@ -47,7 +46,6 @@ namespace Framework.IO
             if (!MoveNext(delimiters))
                 return "";
 
-            Contract.Assume(Current != null);
             return Current;
         }
 

Source/Framework/Networking/SocketManager.cs

@@ -16,7 +16,6 @@
  */
 
 using System;
-using System.Diagnostics.Contracts;
 using System.Net.Sockets;
 
 namespace Framework.Networking
@@ -25,7 +24,7 @@ namespace Framework.Networking
     {
         public virtual bool StartNetwork(string bindIp, int port, int threadCount = 1)
         {
-            Contract.Assert(threadCount > 0);
+            Cypher.Assert(threadCount > 0);
 
             Acceptor = new AsyncAcceptor();
             if (!Acceptor.Start(bindIp, port))

Source/Framework/Util/MathFunctions.cs

@@ -207,7 +207,7 @@ public static class MathFunctions
                 return val1 <= val2;
             default:
                 // incorrect parameter
-                //Contract.Assert(false);
+                Cypher.Assert(false);
                 return false;
         }
 
@@ -228,7 +228,7 @@ public static class MathFunctions
                 return val1 <= val2;
             default:
                 // incorrect parameter
-                //Contract.Assert(false);
+                Cypher.Assert(false);
                 return false;
         }
     }

Source/Framework/Util/RandomHelper.cs

@@ -15,7 +15,6 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 using System;
-using System.Diagnostics.Contracts;
 
 public class RandomHelper
 {
@@ -70,7 +69,7 @@ public class RandomHelper
     }
     public static float FRand(float min, float max)
     {
-        Contract.Assert(max >= min);
+        Cypher.Assert(max >= min);
         return (float)(rand.NextDouble() * (max - min) + min);
     }
 

Source/Game/AI/CoreAI/UnitAI.cs

@@ -21,7 +21,6 @@ using Game.Entities;
 using Game.Spells;
 using System;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 using System.Linq;
 
 namespace Game.AI
@@ -472,7 +471,7 @@ namespace Game.AI
             _caster = caster;
             _spellInfo = Global.SpellMgr.GetSpellInfo(spellId);
 
-            Contract.Assert(_spellInfo != null);
+            Cypher.Assert(_spellInfo != null);
         }
 
         public bool Check(Unit target)

Source/Game/Accounts/BNetAccountManager.cs

@@ -17,7 +17,6 @@
 
 using Framework.Database;
 using System;
-using System.Diagnostics.Contracts;
 using System.Security.Cryptography;
 using System.Text;
 
@@ -46,7 +45,7 @@ namespace Game
             DB.Login.DirectExecute(stmt);
 
             uint newAccountId = GetId(email);
-            Contract.Assert(newAccountId != 0);
+            Cypher.Assert(newAccountId != 0);
 
             if (withGameAccount)
             {

Source/Game/Achievements/CriteriaHandler.cs

@@ -27,7 +27,6 @@ using Game.Network;
 using Game.Spells;
 using System;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 using System.Linq;
 using System.Runtime.InteropServices;
 
@@ -586,7 +585,7 @@ namespace Game.Achievements
             uint timeElapsed = 0;
             if (criteria.Entry.StartTimer != 0)
             {
-                Contract.Assert(trees != null);
+                Cypher.Assert(trees != null);
 
                 foreach (CriteriaTree tree in trees)
                 {
@@ -1554,7 +1553,7 @@ namespace Game.Achievements
             uint questObjectiveCriterias = 0;
             foreach (CriteriaRecord criteriaEntry in CliDB.CriteriaStorage.Values)
             {
-                Contract.Assert(criteriaEntry.Type < CriteriaTypes.TotalTypes,
+                Cypher.Assert(criteriaEntry.Type < CriteriaTypes.TotalTypes,
                     $"CRITERIA_TYPE_TOTAL must be greater than or equal to {criteriaEntry.Type + 1} but is currently equal to {CriteriaTypes.TotalTypes}");
 
                 var treeList = _criteriaTreeByCriteria.LookupByKey(criteriaEntry.Id);

Source/Game/AuctionHouse/AuctionManager.cs

@@ -24,7 +24,6 @@ using Game.Mails;
 using Game.Network.Packets;
 using System;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 
 namespace Game
 {
@@ -327,8 +326,8 @@ namespace Game
 
         public void AddAItem(Item it)
         {
-            Contract.Assert(it);
-            Contract.Assert(!mAitems.ContainsKey(it.GetGUID().GetCounter()));
+            Cypher.Assert(it);
+            Cypher.Assert(!mAitems.ContainsKey(it.GetGUID().GetCounter()));
             mAitems[it.GetGUID().GetCounter()] = it;
         }
 
@@ -419,7 +418,7 @@ namespace Game
     {
         public void AddAuction(AuctionEntry auction)
         {
-            Contract.Assert(auction != null);
+            Cypher.Assert(auction != null);
 
             AuctionsMap[auction.Id] = auction;
             Global.ScriptMgr.OnAuctionAdd(this, auction);

Source/Game/BattleFields/BattleField.cs

@@ -25,7 +25,6 @@ using Game.Network;
 using Game.Network.Packets;
 using System;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 using System.Linq;
 
 namespace Game.BattleFields
@@ -1078,7 +1077,7 @@ namespace Game.BattleFields
 
         public bool SetCapturePointData(GameObject capturePoint)
         {
-            Contract.Assert(capturePoint);
+            Cypher.Assert(capturePoint);
 
             Log.outError(LogFilter.Battlefield, "Creating capture point {0}", capturePoint.GetEntry());
 

Source/Game/BattleFields/Zones/WinterGrasp.cs

@@ -21,7 +21,6 @@ using Game.Entities;
 using Game.Network.Packets;
 using Game.Spells;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 
 namespace Game.BattleFields
 {
@@ -1591,7 +1590,7 @@ namespace Game.BattleFields
 
         public override void ChangeTeam(uint oldteam)
         {
-            Contract.Assert(m_Workshop != null);
+            Cypher.Assert(m_Workshop != null);
             m_Workshop.GiveControlTo(m_team, false);
         }
         uint GetTeam() { return m_team; }

Source/Game/BattleGrounds/BattleGround.cs

@@ -29,7 +29,6 @@ using Game.Network.Packets;
 using Game.Spells;
 using System;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 using System.Linq;
 
 namespace Game.BattleGrounds
@@ -520,13 +519,13 @@ namespace Game.BattleGrounds
 
         public BattlegroundMap GetBgMap()
         {
-            Contract.Assert(m_Map);
+            Cypher.Assert(m_Map);
             return m_Map;
         }
 
         public void SetTeamStartPosition(int teamIndex, Position pos)
         {
-            Contract.Assert(teamIndex < TeamId.Neutral);
+            Cypher.Assert(teamIndex < TeamId.Neutral);
             StartPosition[teamIndex] = pos;
         }
 
@@ -1892,7 +1891,7 @@ namespace Game.BattleGrounds
 
         public Position GetTeamStartPosition(int teamIndex)
         {
-            Contract.Assert(teamIndex < TeamId.Neutral);
+            Cypher.Assert(teamIndex < TeamId.Neutral);
             return StartPosition[teamIndex];
         }
 

Source/Game/BattleGrounds/BattleGroundScore.cs

@@ -17,7 +17,6 @@
 
 using Framework.Constants;
 using Game.Entities;
-using System.Diagnostics.Contracts;
 using Game.Network.Packets;
 
 namespace Game.BattleGrounds
@@ -53,7 +52,7 @@ namespace Game.BattleGrounds
                     HealingDone += value;
                     break;
                 default:
-                    Contract.Assert(false, "Not implemented Battleground score type!");
+                    Cypher.Assert(false, "Not implemented Battleground score type!");
                     break;
             }
         }

Source/Game/BattleGrounds/Zones/ArathiBasin.cs

@@ -21,7 +21,6 @@ using Game.Entities;
 using Game.Network.Packets;
 using System;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 
 namespace Game.BattleGrounds.Zones
 {

Source/Game/Chat/Commands/GoCommands.cs

@@ -24,7 +24,6 @@ using Game.Maps;
 using Game.SupportSystem;
 using System;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 
 namespace Game.Chat.Commands
 {
@@ -419,7 +418,7 @@ namespace Game.Chat.Commands
 
             // update to parent zone if exist (client map show only zones without parents)
             AreaTableRecord zoneEntry = areaEntry.ParentAreaID != 0 ? CliDB.AreaTableStorage.LookupByKey(areaEntry.ParentAreaID) : areaEntry;
-            Contract.Assert(zoneEntry != null);
+            Cypher.Assert(zoneEntry != null);
 
             Map map = Global.MapMgr.CreateBaseMap(zoneEntry.ContinentID);
 

Source/Game/Collision/DynamicTree.cs

@@ -17,7 +17,6 @@
 
 using Framework.GameMath;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 
 namespace Game.Collision
 {
@@ -68,7 +67,7 @@ namespace Game.Collision
             bool result = false;
             float maxDist = (endPos - startPos).magnitude();
             // valid map coords should *never ever* produce float overflow, but this would produce NaNs too
-            Contract.Assert(maxDist < float.MaxValue);
+            Cypher.Assert(maxDist < float.MaxValue);
             // prevent NaN values which can cause BIH intersection to enter infinite loop
             if (maxDist < 1e-10f)
             {

Source/Game/Collision/Management/VMapManager.cs

@@ -19,7 +19,6 @@ using Framework.Constants;
 using Framework.GameMath;
 using System;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 
 namespace Game.Collision
 {
@@ -221,7 +220,7 @@ namespace Game.Collision
                     if (instanceTree.GetLocationInfo(pos, info))
                     {
                         floor = info.ground_Z;
-                        Contract.Assert(floor < float.MaxValue);
+                        Cypher.Assert(floor < float.MaxValue);
                         type = info.hitModel.GetLiquidType();  // entry from LiquidType.dbc
                         if (reqLiquidType != 0 && !Convert.ToBoolean(Global.DB2Mgr.GetLiquidFlags(type) & reqLiquidType))
                             return false;

Source/Game/Collision/Maps/MapTree.cs

@@ -19,7 +19,6 @@ using Framework.Constants;
 using Framework.GameMath;
 using System;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 using System.IO;
 
 namespace Game.Collision
@@ -328,7 +327,7 @@ namespace Game.Collision
             bool result = false;
             float maxDist = (pPos2 - pPos1).magnitude();
             // valid map coords should *never ever* produce float overflow, but this would produce NaNs too
-            Contract.Assert(maxDist < float.MaxValue);
+            Cypher.Assert(maxDist < float.MaxValue);
             // prevent NaN values which can cause BIH intersection to enter infinite loop
             if (maxDist < 1e-10f)
             {
@@ -375,7 +374,7 @@ namespace Game.Collision
                 return false;
 
             // valid map coords should *never ever* produce float overflow, but this would produce NaNs too
-            Contract.Assert(maxDist < float.MaxValue);
+            Cypher.Assert(maxDist < float.MaxValue);
             // prevent NaN values which can cause BIH intersection to enter infinite loop
             if (maxDist < 1e-10f)
                 return true;

Source/Game/Collision/RegularGrid2D.cs

@@ -18,7 +18,6 @@
 using Framework.GameMath;
 using System;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 using System.Collections.Concurrent;
 
 namespace Game.Collision
@@ -102,7 +101,7 @@ namespace Game.Collision
 
         Node getGrid(int x, int y)
         {
-            Contract.Assert(x < CELL_NUMBER && y < CELL_NUMBER);
+            Cypher.Assert(x < CELL_NUMBER && y < CELL_NUMBER);
             if (nodes[x][y] == null)
                 nodes[x][y] = new Node();
             return nodes[x][y];

Source/Game/Combat/ThreatManager.cs

@@ -19,7 +19,6 @@ using Framework.Constants;
 using Game.Entities;
 using Game.Spells;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 using System.Linq;
 
 namespace Game.Combat
@@ -313,7 +312,7 @@ namespace Game.Combat
             if (threatSpell != null && threatSpell.HasAttribute(SpellAttr1.NoThreat))
                 return false;
 
-            Contract.Assert(hatingUnit.IsTypeId(TypeId.Unit));
+            Cypher.Assert(hatingUnit.IsTypeId(TypeId.Unit));
 
             return true;
         }
@@ -395,7 +394,7 @@ namespace Game.Combat
                 currentRef = threatList[i];
 
                 Unit target = currentRef.getTarget();
-                Contract.Assert(target);                                     // if the ref has status online the target must be there !
+                Cypher.Assert(target);                                     // if the ref has status online the target must be there !
 
                 // some units are prefered in comparison to others
                 if (!noPriorityTargetFound && (target.IsImmunedToDamage(attacker.GetMeleeDamageSchoolMask()) || target.HasNegativeAuraWithInterruptFlag(SpellAuraInterruptFlags.TakeDamage)))

Source/Game/Conditions/Condition.cs

@@ -21,7 +21,6 @@ using Game.Entities;
 using Game.Maps;
 using System;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 using System.Text;
 
 namespace Game.Conditions
@@ -36,7 +35,7 @@ namespace Game.Conditions
 
         public bool Meets(ConditionSourceInfo sourceInfo)
         {
-            Contract.Assert(ConditionTarget < SharedConst.MaxConditionTargets);
+            Cypher.Assert(ConditionTarget < SharedConst.MaxConditionTargets);
             WorldObject obj = sourceInfo.mConditionTargets[ConditionTarget];
             // object not present, return false
             if (obj == null)
@@ -62,7 +61,7 @@ namespace Game.Conditions
                     if (player != null)
                     {
                         // don't allow 0 items (it's checked during table load)
-                        Contract.Assert(ConditionValue2 != 0);
+                        Cypher.Assert(ConditionValue2 != 0);
                         bool checkBank = ConditionValue3 != 0 ? true : false;
                         condMeets = player.HasItemCount(ConditionValue1, ConditionValue2, checkBank);
                     }
@@ -486,7 +485,7 @@ namespace Game.Conditions
                     mask |= GridMapTypeMask.Player;
                     break;
                 default:
-                    Contract.Assert(false, "Condition.GetSearcherTypeMaskForCondition - missing condition handling!");
+                    Cypher.Assert(false, "Condition.GetSearcherTypeMaskForCondition - missing condition handling!");
                     break;
             }
             return mask;

Source/Game/Conditions/ConditionManager.cs

@@ -25,7 +25,6 @@ using Game.Loots;
 using Game.Spells;
 using System;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 using System.Linq;
 
 namespace Game
@@ -43,7 +42,7 @@ namespace Game
             foreach (var i in conditions)
             {
                 // no point of having not loaded conditions in list
-                Contract.Assert(i.isLoaded(), "ConditionMgr.GetSearcherTypeMaskForConditionList - not yet loaded condition found in list");
+                Cypher.Assert(i.isLoaded(), "ConditionMgr.GetSearcherTypeMaskForConditionList - not yet loaded condition found in list");
                 // group not filled yet, fill with widest mask possible
                 if (!elseGroupSearcherTypeMasks.ContainsKey(i.ElseGroup))
                     elseGroupSearcherTypeMasks[i.ElseGroup] = GridMapTypeMask.All;
@@ -54,7 +53,7 @@ namespace Game
                 if (i.ReferenceId != 0) // handle reference
                 {
                     var refe = ConditionReferenceStore.LookupByKey(i.ReferenceId);
-                    Contract.Assert(refe.Empty(), "ConditionMgr.GetSearcherTypeMaskForConditionList - incorrect reference");
+                    Cypher.Assert(refe.Empty(), "ConditionMgr.GetSearcherTypeMaskForConditionList - incorrect reference");
                     elseGroupSearcherTypeMasks[i.ElseGroup] &= GetSearcherTypeMaskForConditionList(refe);
                 }
                 else // handle normal condition
@@ -579,7 +578,7 @@ namespace Game
         {
             uint conditionEffMask = cond.SourceGroup;
             SpellInfo spellInfo = Global.SpellMgr.GetSpellInfo((uint)cond.SourceEntry);
-            Contract.Assert(spellInfo != null);
+            Cypher.Assert(spellInfo != null);
             List<uint> sharedMasks = new List<uint>();
             for (byte i = 0; i < SpellConst.MaxEffects; ++i)
             {
@@ -1644,7 +1643,7 @@ namespace Game
 
         static bool PlayerConditionLogic(uint logic, bool[] results)
         {
-            Contract.Assert(results.Length < 16, "Logic array size must be equal to or less than 16");
+            Cypher.Assert(results.Length < 16, "Logic array size must be equal to or less than 16");
 
             for (var i = 0; i < results.Length; ++i)
             {

Source/Game/Conditions/DisableManager.cs

@@ -22,7 +22,6 @@ using Game.DataStorage;
 using Game.Entities;
 using System;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 
 namespace Game
 {
@@ -288,7 +287,7 @@ namespace Game
 
         public bool IsDisabledFor(DisableType type, uint entry, Unit unit, byte flags = 0)
         {
-            Contract.Assert(type < DisableType.Max);
+            Cypher.Assert(type < DisableType.Max);
             if (!m_DisableMap.ContainsKey(type) || m_DisableMap[type].Empty())
                 return false;
 

Source/Game/DataStorage/DB2Manager.cs

@@ -20,7 +20,6 @@ using Framework.Database;
 using Framework.GameMath;
 using System;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 using System.Linq;
 using System.Text.RegularExpressions;
 
@@ -73,8 +72,8 @@ namespace Game.DataStorage
             CharBaseSectionVariation[] sectionToBase = new CharBaseSectionVariation[(int)CharSectionType.Max];
             foreach (CharBaseSectionRecord charBaseSection in CliDB.CharBaseSectionStorage.Values)
             {
-                Contract.Assert(charBaseSection.ResolutionVariationEnum < (byte)CharSectionType.Max, $"SECTION_TYPE_MAX ({(byte)CharSectionType.Max}) must be equal to or greater than {charBaseSection.ResolutionVariationEnum + 1}");
-                Contract.Assert(charBaseSection.VariationEnum < CharBaseSectionVariation.Max, $"CharBaseSectionVariation.Max {(byte)CharBaseSectionVariation.Max} must be equal to or greater than {charBaseSection.VariationEnum + 1}");
+                Cypher.Assert(charBaseSection.ResolutionVariationEnum < (byte)CharSectionType.Max, $"SECTION_TYPE_MAX ({(byte)CharSectionType.Max}) must be equal to or greater than {charBaseSection.ResolutionVariationEnum + 1}");
+                Cypher.Assert(charBaseSection.VariationEnum < CharBaseSectionVariation.Max, $"CharBaseSectionVariation.Max {(byte)CharBaseSectionVariation.Max} must be equal to or greater than {charBaseSection.VariationEnum + 1}");
 
                 sectionToBase[charBaseSection.ResolutionVariationEnum] = charBaseSection.VariationEnum;
             }
@@ -84,7 +83,7 @@ namespace Game.DataStorage
             MultiMap<Tuple<byte, byte, CharBaseSectionVariation>, Tuple<byte, byte>> addedSections = new MultiMap<Tuple<byte, byte, CharBaseSectionVariation>, Tuple<byte, byte>>();
             foreach (CharSectionsRecord charSection in CliDB.CharSectionsStorage.Values)
             {
-                Contract.Assert(charSection.BaseSection < (byte)CharSectionType.Max, $"SECTION_TYPE_MAX ({(byte)CharSectionType.Max}) must be equal to or greater than {charSection.BaseSection + 1}");
+                Cypher.Assert(charSection.BaseSection < (byte)CharSectionType.Max, $"SECTION_TYPE_MAX ({(byte)CharSectionType.Max}) must be equal to or greater than {charSection.BaseSection + 1}");
 
                 Tuple<byte, byte, CharBaseSectionVariation> sectionKey = Tuple.Create(charSection.RaceID, charSection.SexID, sectionToBase[charSection.BaseSection]);
                 Tuple<byte, byte> sectionCombination = Tuple.Create(charSection.VariationIndex, charSection.ColorIndex);
@@ -299,7 +298,7 @@ namespace Game.DataStorage
 
             foreach (var namesProfanity in CliDB.NamesProfanityStorage.Values)
             {
-                Contract.Assert(namesProfanity.Language < (int)LocaleConstant.Total || namesProfanity.Language == -1);
+                Cypher.Assert(namesProfanity.Language < (int)LocaleConstant.Total || namesProfanity.Language == -1);
                 if (namesProfanity.Language != -1)
                     _nameValidators[namesProfanity.Language].Add(new Regex(namesProfanity.Name, RegexOptions.IgnoreCase | RegexOptions.Compiled));
                 else
@@ -321,7 +320,7 @@ namespace Game.DataStorage
 
             foreach (var namesReserved in CliDB.NamesReservedLocaleStorage.Values)
             {
-                Contract.Assert(!Convert.ToBoolean(namesReserved.LocaleMask & ~((1 << (int)LocaleConstant.Total) - 1)));
+                Cypher.Assert(!Convert.ToBoolean(namesReserved.LocaleMask & ~((1 << (int)LocaleConstant.Total) - 1)));
                 for (int i = 0; i < (int)LocaleConstant.Total; ++i)
                 {
                     if (i == (int)LocaleConstant.None)
@@ -343,7 +342,7 @@ namespace Game.DataStorage
 
             foreach (PowerTypeRecord powerType in CliDB.PowerTypeStorage.Values)
             {
-                Contract.Assert(powerType.PowerTypeEnum < PowerType.Max);
+                Cypher.Assert(powerType.PowerTypeEnum < PowerType.Max);
 
                 _powerTypes[powerType.PowerTypeEnum] = powerType;
             }
@@ -1116,7 +1115,7 @@ namespace Game.DataStorage
 
         public string GetNameGenEntry(uint race, uint gender)
         {
-            Contract.Assert(gender < (int)Gender.None);
+            Cypher.Assert(gender < (int)Gender.None);
             var listNameGen = _nameGenData.LookupByKey(race);
             if (listNameGen == null)
                 return "";
@@ -1443,7 +1442,6 @@ namespace Game.DataStorage
         {
             newPos = new Vector2();
 
-            //Contract.Assert(newMapId != 0 || newPos != );
             WorldMapTransformsRecord transformation = null;
             foreach (WorldMapTransformsRecord transform in CliDB.WorldMapTransformsStorage.Values)
             {

Source/Game/DungeonFinding/LFGManager.cs

@@ -24,7 +24,6 @@ using Game.Groups;
 using Game.Maps;
 using System;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 using System.Linq;
 using System.Text;
 using Game.Network.Packets;
@@ -757,8 +756,8 @@ namespace Game.DungeonFinding
                         if (it2.Value.lockStatus == LfgLockStatusType.RaidLocked && isContinue)
                         {
                             LFGDungeonData dungeon = GetLFGDungeon(dungeonId);
-                            Contract.Assert(dungeon != null);
-                            Contract.Assert(player);
+                            Cypher.Assert(dungeon != null);
+                            Cypher.Assert(player);
                             InstanceBind playerBind = player.GetBoundInstance(dungeon.map, dungeon.difficulty);
                             if (playerBind != null)
                             {
@@ -873,7 +872,7 @@ namespace Game.DungeonFinding
 
             // Set the dungeon difficulty
             LFGDungeonData dungeon = GetLFGDungeon(proposal.dungeonId);
-            Contract.Assert(dungeon != null);
+            Cypher.Assert(dungeon != null);
 
             Group grp = !proposal.group.IsEmpty() ? Global.GroupMgr.GetGroupByGUID(proposal.group) : null;
             foreach (var pguid in players)
@@ -1431,7 +1430,7 @@ namespace Game.DungeonFinding
 
         public bool IsVoteKickActive(ObjectGuid gguid)
         {
-            Contract.Assert(gguid.IsParty());
+            Cypher.Assert(gguid.IsParty());
 
             bool active = GroupsStore[gguid].IsVoteKickActive();
             Log.outInfo(LogFilter.Lfg, "Group: {0}, Active: {1}", gguid.ToString(), active);
@@ -1591,7 +1590,7 @@ namespace Game.DungeonFinding
 
         void SetVoteKick(ObjectGuid gguid, bool active)
         {
-            Contract.Assert(gguid.IsParty());
+            Cypher.Assert(gguid.IsParty());
 
             var data = GroupsStore[gguid];
             Log.outInfo(LogFilter.Lfg, "Group: {0}, New state: {1}, Previous: {2}", gguid.ToString(), active, data.IsVoteKickActive());

Source/Game/Entities/Creature/Creature.cs

@@ -27,7 +27,6 @@ using Game.Network.Packets;
 using Game.Spells;
 using System;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 using System.Linq;
 
 namespace Game.Entities
@@ -662,7 +661,7 @@ namespace Game.Entities
                 return false;
             }
 
-            Contract.Assert(i_disabledAI == null, "The disabled AI wasn't cleared!");
+            Cypher.Assert(i_disabledAI == null, "The disabled AI wasn't cleared!");
 
             i_AI = null;
 

Source/Game/Entities/Creature/Gossip.cs

@@ -23,7 +23,6 @@ using Game.DataStorage;
 using Game.Entities;
 using Game.Network.Packets;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 using System.Linq;
 
 namespace Game.Misc
@@ -32,7 +31,7 @@ namespace Game.Misc
     {
         public uint AddMenuItem(int optionIndex, GossipOptionIcon icon, string message, uint sender, uint action, string boxMessage, uint boxMoney, bool coded = false)
         {
-            Contract.Assert(_menuItems.Count <= SharedConst.MaxGossipMenuItems);
+            Cypher.Assert(_menuItems.Count <= SharedConst.MaxGossipMenuItems);
 
             // Find a free new id - script case
             if (optionIndex == -1)

Source/Game/Entities/DynamicObject.cs

@@ -17,7 +17,6 @@
 
 using Framework.Constants;
 using Game.Spells;
-using System.Diagnostics.Contracts;
 
 namespace Game.Entities
 {
@@ -36,9 +35,9 @@ namespace Game.Entities
         public override void Dispose()
         {
             // make sure all references were properly removed
-            Contract.Assert(_aura == null);
-            Contract.Assert(!_caster);
-            Contract.Assert(!_isViewpoint);
+            Cypher.Assert(_aura == null);
+            Cypher.Assert(!_caster);
+            Cypher.Assert(!_isViewpoint);
             _removedAura = null;
 
             base.Dispose();
@@ -129,8 +128,8 @@ namespace Game.Entities
         public override void Update(uint diff)
         {
             // caster has to be always available and in the same map
-            Contract.Assert(_caster != null);
-            Contract.Assert(_caster.GetMap() == GetMap());
+            Cypher.Assert(_caster != null);
+            Cypher.Assert(_caster.GetMap() == GetMap());
 
             bool expired = false;
 
@@ -189,13 +188,13 @@ namespace Game.Entities
 
         public void SetAura(Aura aura)
         {
-            Contract.Assert(_aura == null && aura != null);
+            Cypher.Assert(_aura == null && aura != null);
             _aura = aura;
         }
 
         void RemoveAura()
         {
-            Contract.Assert(_aura != null && _removedAura == null);
+            Cypher.Assert(_aura != null && _removedAura == null);
             _removedAura = _aura;
             _aura = null;
             if (!_removedAura.IsRemoved())
@@ -224,16 +223,16 @@ namespace Game.Entities
 
         void BindToCaster()
         {
-            Contract.Assert(_caster == null);
+            Cypher.Assert(_caster == null);
             _caster = Global.ObjAccessor.GetUnit(this, GetCasterGUID());
-            Contract.Assert(_caster != null);
-            Contract.Assert(_caster.GetMap() == GetMap());
+            Cypher.Assert(_caster != null);
+            Cypher.Assert(_caster.GetMap() == GetMap());
             _caster._RegisterDynObject(this);
         }
 
         void UnbindFromCaster()
         {
-            Contract.Assert(_caster != null);
+            Cypher.Assert(_caster != null);
             _caster._UnregisterDynObject(this);
             _caster = null;
         }

Source/Game/Entities/GameObject/GameObject.cs

@@ -30,7 +30,6 @@ using Game.Network.Packets;
 using Game.Spells;
 using System;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 using System.Linq;
 
 namespace Game.Entities
@@ -100,7 +99,7 @@ namespace Game.Entities
             if (owner)
             {
                 owner.RemoveGameObject(this, false);
-                Contract.Assert(GetOwnerGUID().IsEmpty());
+                Cypher.Assert(GetOwnerGUID().IsEmpty());
                 return;
             }
 
@@ -182,7 +181,7 @@ namespace Game.Entities
 
         bool Create(uint entry, Map map, Position pos, Quaternion rotation, uint animProgress, GameObjectState goState, uint artKit)
         {
-            Contract.Assert(map);
+            Cypher.Assert(map);
             SetMap(map);
 
             Relocate(pos);
@@ -2143,7 +2142,7 @@ namespace Game.Entities
         public void SetDestructibleState(GameObjectDestructibleState state, Player eventInvoker = null, bool setHealth = false)
         {
             // the user calling this must know he is already operating on destructible gameobject
-            Contract.Assert(GetGoType() == GameObjectTypes.DestructibleBuilding);
+            Cypher.Assert(GetGoType() == GameObjectTypes.DestructibleBuilding);
 
             switch (state)
             {
@@ -2278,7 +2277,7 @@ namespace Game.Entities
 
         public virtual uint GetTransportPeriod()
         {
-            Contract.Assert(GetGoInfo().type == GameObjectTypes.Transport);
+            Cypher.Assert(GetGoInfo().type == GameObjectTypes.Transport);
             if (m_goValue.Transport.AnimationInfo.Path != null)
                 return m_goValue.Transport.AnimationInfo.TotalTime;
 
@@ -2290,8 +2289,8 @@ namespace Game.Entities
             if (GetGoState() == state)
                 return;
 
-            Contract.Assert(GetGoInfo().type == GameObjectTypes.Transport);
-            Contract.Assert(state >= GameObjectState.TransportActive);
+            Cypher.Assert(GetGoInfo().type == GameObjectTypes.Transport);
+            Cypher.Assert(state >= GameObjectState.TransportActive);
             if (state == GameObjectState.TransportActive)
             {
                 m_goValue.Transport.StateUpdateTimer = 0;
@@ -2302,7 +2301,7 @@ namespace Game.Entities
             }
             else
             {
-                Contract.Assert(stopFrame < m_goValue.Transport.StopFrames.Count);
+                Cypher.Assert(stopFrame < m_goValue.Transport.StopFrames.Count);
                 m_goValue.Transport.PathProgress = Time.GetMSTime() + m_goValue.Transport.StopFrames[(int)stopFrame];
                 SetGoState((GameObjectState)((int)GameObjectState.TransportStopped + stopFrame));
             }
@@ -2631,7 +2630,7 @@ namespace Game.Entities
             // Owner already found and different than expected owner - remove object from old owner
             if (!owner.IsEmpty() && !GetOwnerGUID().IsEmpty() && GetOwnerGUID() != owner)
             {
-                Contract.Assert(false);
+                Cypher.Assert(false);
             }
             m_spawnedByDefault = false;                     // all object with owner is despawned after delay
             SetGuidValue(GameObjectFields.CreatedBy, owner);

Source/Game/Entities/Item/Item.cs

@@ -26,7 +26,6 @@ using Game.Network.Packets;
 using Game.Spells;
 using System;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 using System.Linq;
 using System.Runtime.InteropServices;
 using System.Text;
@@ -759,7 +758,7 @@ namespace Game.Entities
             if (item.IsInUpdateQueue())
                 return;
 
-            Contract.Assert(player != null);
+            Cypher.Assert(player != null);
 
             if (player.GetGUID() != item.GetOwnerGUID())
             {
@@ -779,7 +778,7 @@ namespace Game.Entities
             if (!item.IsInUpdateQueue())
                 return;
 
-            Contract.Assert(player != null);
+            Cypher.Assert(player != null);
 
             if (player.GetGUID() != item.GetOwnerGUID())
             {
@@ -2054,7 +2053,7 @@ namespace Game.Entities
 
         public int GetItemStatValue(uint index, Player owner)
         {
-            Contract.Assert(index < ItemConst.MaxStats);
+            Cypher.Assert(index < ItemConst.MaxStats);
             uint itemLevel = GetItemLevel(owner);
             uint randomPropPoints = ItemEnchantment.GetRandomPropertyPoints(itemLevel, GetQuality(), GetTemplate().GetInventoryType(), GetTemplate().GetSubClass());
             if (randomPropPoints != 0)
@@ -2550,7 +2549,7 @@ namespace Game.Entities
 
             if (eff.EquippedItemCount == 0)                                    //all items of a set were removed
             {
-                Contract.Assert(eff == player.ItemSetEff[setindex]);
+                Cypher.Assert(eff == player.ItemSetEff[setindex]);
                 player.ItemSetEff[setindex] = null;
             }
         }
@@ -2632,12 +2631,12 @@ namespace Game.Entities
         public ItemQuality GetQuality() { return _bonusData.Quality; }
         public int GetItemStatType(uint index)
         {
-            Contract.Assert(index < ItemConst.MaxStats);
+            Cypher.Assert(index < ItemConst.MaxStats);
             return _bonusData.ItemStatType[index];
         }
         public SocketColor GetSocketColor(uint index)
         {
-            Contract.Assert(index < ItemConst.MaxGemSockets);
+            Cypher.Assert(index < ItemConst.MaxGemSockets);
             return _bonusData.socketColor[index];
         }
         public uint GetAppearanceModId() { return GetUInt32Value(ItemFields.AppearanceModId); }

Source/Game/Entities/Item/ItemTemplate.cs

@@ -20,7 +20,6 @@ using Game.DataStorage;
 using System;
 using System.Collections;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 
 namespace Game.Entities
 {
@@ -275,22 +274,22 @@ namespace Game.Entities
         public uint GetContainerSlots() { return ExtendedData.ContainerSlots; }
         public int GetItemStatType(uint index)
         {
-            Contract.Assert(index < ItemConst.MaxStats);
+            Cypher.Assert(index < ItemConst.MaxStats);
             return ExtendedData.StatModifierBonusStat[index];
         }
         public int GetItemStatValue(uint index)
         {
-            Contract.Assert(index < ItemConst.MaxStats);
+            Cypher.Assert(index < ItemConst.MaxStats);
             return ExtendedData.ItemStatValue[index];
         }
         public int GetItemStatAllocation(uint index)
         {
-            Contract.Assert(index < ItemConst.MaxStats);
+            Cypher.Assert(index < ItemConst.MaxStats);
             return ExtendedData.StatPercentEditor[index];
         }
         public float GetItemStatSocketCostMultiplier(uint index)
         {
-            Contract.Assert(index < ItemConst.MaxStats);
+            Cypher.Assert(index < ItemConst.MaxStats);
             return ExtendedData.StatPercentageOfSocket[index];
         }
         public uint GetScalingStatDistribution() { return ExtendedData.ScalingStatDistributionID; }
@@ -310,7 +309,7 @@ namespace Game.Entities
         public uint GetTotemCategory() { return ExtendedData.TotemCategoryID; }
         public SocketColor GetSocketColor(uint index)
         {
-            Contract.Assert(index < ItemConst.MaxGemSockets);
+            Cypher.Assert(index < ItemConst.MaxGemSockets);
             return (SocketColor)ExtendedData.SocketType[index];
         }
         public uint GetSocketBonus() { return ExtendedData.SocketMatchEnchantmentId; }

Source/Game/Entities/Pet.cs

@@ -23,7 +23,6 @@ using Game.Network.Packets;
 using Game.Spells;
 using System;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 using System.Linq;
 using System.Text;
 
@@ -39,7 +38,7 @@ namespace Game.Entities
         {
             m_petType = type;
 
-            Contract.Assert(GetOwner().IsTypeId(TypeId.Player));
+            Cypher.Assert(GetOwner().IsTypeId(TypeId.Player));
 
             m_unitTypeMask |= UnitTypeMask.Pet;
             if (type == PetType.Hunter)
@@ -663,7 +662,7 @@ namespace Game.Entities
 
         public bool CreateBaseAtCreature(Creature creature)
         {
-            Contract.Assert(creature);
+            Cypher.Assert(creature);
 
             if (!CreateBaseAtTamed(creature.GetCreatureTemplate(), creature.GetMap()))
                 return false;
@@ -1336,7 +1335,7 @@ namespace Game.Entities
 
         public bool Create(ulong guidlow, Map map, uint Entry)
         {
-            Contract.Assert(map);
+            Cypher.Assert(map);
             SetMap(map);
 
             _Create(ObjectGuid.Create(HighGuid.Pet, map.GetId(), Entry, guidlow));

Source/Game/Entities/Player/Player.DB.cs

@@ -30,7 +30,6 @@ using Game.Network.Packets;
 using Game.Spells;
 using System;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 using System.Linq;
 using System.Text;
 
@@ -2670,7 +2669,7 @@ namespace Game.Entities
                     var nodeEntry = CliDB.TaxiNodesStorage.LookupByKey(nodeid);
                     if (nodeEntry != null && nodeEntry.ContinentID == GetMapId())
                     {
-                        Contract.Assert(nodeEntry != null);                                  // checked in m_taxi.LoadTaxiDestinationsFromString
+                        Cypher.Assert(nodeEntry != null);                                  // checked in m_taxi.LoadTaxiDestinationsFromString
                         mapId = nodeEntry.ContinentID;
                         Relocate(nodeEntry.Pos.X, nodeEntry.Pos.Y, nodeEntry.Pos.Z, 0.0f);
                     }

Source/Game/Entities/Player/Player.Groups.cs

@@ -19,7 +19,6 @@ using Framework.Constants;
 using Game.Groups;
 using Game.Maps;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 
 namespace Game.Entities
 {
@@ -165,7 +164,7 @@ namespace Game.Entities
 
         public void SetPartyType(GroupCategory category, GroupType type)
         {
-            Contract.Assert(category < GroupCategory.Max);
+            Cypher.Assert(category < GroupCategory.Max);
             byte value = GetByteValue(PlayerFields.Bytes3, PlayerFieldOffsets.Bytes3OffsetPartyType);
             value &= (byte)~((byte)0xFF << ((byte)category * 4));
             value |= (byte)((byte)type << ((byte)category * 4));

Source/Game/Entities/Player/Player.Items.cs

@@ -29,7 +29,6 @@ using Game.Network.Packets;
 using Game.Spells;
 using System;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 using System.Linq;
 using System.Text;
 
@@ -122,7 +121,7 @@ namespace Game.Entities
                 {
                     List<ItemPosCount> dest = new List<ItemPosCount>();
                     InventoryResult msg = CanStoreNewItem(ItemConst.NullBag, ItemConst.NullSlot, dest, itemid, count);
-                    Contract.Assert(msg == InventoryResult.Ok); // Already checked before
+                    Cypher.Assert(msg == InventoryResult.Ok); // Already checked before
                     Item it = StoreNewItem(dest, itemid, true);
                     SendNewItem(it, count, true, false, true);
                 }

Source/Game/Entities/Player/Player.Quest.cs

@@ -27,7 +27,6 @@ using Game.Network.Packets;
 using Game.Spells;
 using System;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 
 namespace Game.Entities
 {
@@ -241,7 +240,7 @@ namespace Game.Entities
                 //we should obtain map from GetMap() in 99% of cases. Special case
                 //only for quests which cast teleport spells on player
                 Map _map = IsInWorld ? GetMap() : Global.MapMgr.FindMap(GetMapId(), GetInstanceId());
-                Contract.Assert(_map != null);
+                Cypher.Assert(_map != null);
                 GameObject gameObject = _map.GetGameObject(guid);
                 if (gameObject != null)
                 {
@@ -342,7 +341,7 @@ namespace Game.Entities
             switch (guid.GetHigh())
             {
                 case HighGuid.Player:
-                    Contract.Assert(quest.HasFlag(QuestFlags.AutoComplete));
+                    Cypher.Assert(quest.HasFlag(QuestFlags.AutoComplete));
                     return Global.ObjectMgr.GetQuestTemplate(nextQuestID);
                 case HighGuid.Creature:
                 case HighGuid.Pet:
@@ -360,7 +359,7 @@ namespace Game.Entities
                         //we should obtain map from GetMap() in 99% of cases. Special case
                         //only for quests which cast teleport spells on player
                         Map _map = IsInWorld ? GetMap() : Global.MapMgr.FindMap(GetMapId(), GetInstanceId());
-                        Contract.Assert(_map != null);
+                        Cypher.Assert(_map != null);
                         GameObject gameObject = _map.GetGameObject(guid);
                         if (gameObject != null)
                             objectQR = Global.ObjectMgr.GetGOQuestRelationBounds(gameObject.GetEntry());
@@ -2156,7 +2155,7 @@ namespace Game.Entities
 
         public void KilledMonster(CreatureTemplate cInfo, ObjectGuid guid)
         {
-            Contract.Assert(cInfo != null);
+            Cypher.Assert(cInfo != null);
 
             if (cInfo.Entry != 0)
                 KilledMonsterCredit(cInfo.Entry, guid);

Source/Game/Entities/Player/Player.cs

@@ -37,7 +37,6 @@ using Game.PvP;
 using Game.Spells;
 using System;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 using System.Linq;
 
 namespace Game.Entities
@@ -1091,7 +1090,7 @@ namespace Game.Entities
                 if (!charm.GetCharmerGUID().IsEmpty())
                 {
                     Log.outFatal(LogFilter.Player, "Charmed unit has charmer guid {0}", charm.GetCharmerGUID());
-                    Contract.Assert(false);
+                    Cypher.Assert(false);
                 }
 
                 SetCharm(charm, false);
@@ -1231,7 +1230,7 @@ namespace Game.Entities
                 return;
 
             CurrencyTypesRecord currency = CliDB.CurrencyTypesStorage.LookupByKey(id);
-            Contract.Assert(currency != null);
+            Cypher.Assert(currency != null);
 
             if (!ignoreMultipliers)
                 count *= (int)GetTotalAuraMultiplierByMiscValue(AuraType.ModCurrencyGain, (int)id);
@@ -2605,7 +2604,7 @@ namespace Game.Entities
 
             return textId;
         }
-        uint GetDefaultGossipMenuForSource(WorldObject source)
+        public static uint GetDefaultGossipMenuForSource(WorldObject source)
         {
             switch (source.GetTypeId())
             {
@@ -3546,7 +3545,7 @@ namespace Game.Entities
 
         public void SetResurrectRequestData(Unit caster, uint health, uint mana, uint appliedAura)
         {
-            Contract.Assert(!IsResurrectRequested());
+            Cypher.Assert(!IsResurrectRequested());
             _resurrectionData = new ResurrectionData();
             _resurrectionData.GUID = caster.GetGUID();
             _resurrectionData.Location.WorldRelocate(caster);
@@ -5099,9 +5098,9 @@ namespace Game.Entities
                     return GetCollisionHeight(false);
 
                 var displayInfo = CliDB.CreatureDisplayInfoStorage.LookupByKey(GetNativeDisplayId());
-                Contract.Assert(displayInfo != null);
+                Cypher.Assert(displayInfo != null);
                 var modelData = CliDB.CreatureModelDataStorage.LookupByKey(displayInfo.ModelID);
-                Contract.Assert(modelData != null);
+                Cypher.Assert(modelData != null);
 
                 float scaleMod = GetObjectScale(); // 99% sure about this
 
@@ -5111,9 +5110,9 @@ namespace Game.Entities
             {
                 //! Dismounting case - use basic default model data
                 var displayInfo = CliDB.CreatureDisplayInfoStorage.LookupByKey(GetNativeDisplayId());
-                Contract.Assert(displayInfo != null);
+                Cypher.Assert(displayInfo != null);
                 var modelData = CliDB.CreatureModelDataStorage.LookupByKey(displayInfo.ModelID);
-                Contract.Assert(modelData != null);
+                Cypher.Assert(modelData != null);
 
                 return modelData.CollisionHeight;
             }
@@ -7009,7 +7008,7 @@ namespace Game.Entities
         //new
         public uint DoRandomRoll(uint minimum, uint maximum)
         {
-            Contract.Assert(maximum <= 10000);
+            Cypher.Assert(maximum <= 10000);
 
             uint roll = RandomHelper.URand(minimum, maximum);
 

Source/Game/Entities/TemporarySummon.cs

@@ -18,8 +18,8 @@
 using Framework.Constants;
 using Framework.Dynamic;
 using Game.DataStorage;
+using System;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 
 namespace Game.Entities
 {
@@ -175,7 +175,7 @@ namespace Game.Entities
 
         public virtual void InitStats(uint duration)
         {
-            Contract.Assert(!IsPet());
+            Cypher.Assert(!IsPet());
 
             m_timer = duration;
             m_lifetime = duration;
@@ -250,11 +250,11 @@ namespace Game.Entities
                 return;
             }
 
-            Contract.Assert(!IsPet());
+            Cypher.Assert(!IsPet());
             if (IsPet())
             {
                 ToPet().Remove(PetSaveMode.NotInSlot);
-                Contract.Assert(!IsInWorld);
+                Cypher.Assert(!IsInWorld);
                 return;
             }
 
@@ -313,9 +313,11 @@ namespace Game.Entities
             : base(properties, owner, isWorldObject)
         {
             m_owner = owner;
-            Contract.Assert(m_owner);
+            Cypher.Assert(m_owner);
             m_unitTypeMask |= UnitTypeMask.Minion;
             m_followAngle = SharedConst.PetFollowAngle;
+            /// @todo: Find correct way
+            InitCharmInfo();
         }
 
         public override void InitStats(uint duration)
@@ -411,7 +413,7 @@ namespace Game.Entities
         public bool InitStatsForLevel(uint petlevel)
         {
             CreatureTemplate cinfo = GetCreatureTemplate();
-            Contract.Assert(cinfo != null);
+            Cypher.Assert(cinfo != null);
 
             SetLevel(petlevel);
 
@@ -966,10 +968,9 @@ namespace Game.Entities
 
     public class Puppet : Minion
     {
-        public Puppet(SummonPropertiesRecord properties, Unit owner)
-            : base(properties, owner, false)
+        public Puppet(SummonPropertiesRecord properties, Unit owner) : base(properties, owner, false)
         {
-            Contract.Assert(owner.IsTypeId(TypeId.Player));
+            Cypher.Assert(owner.IsTypeId(TypeId.Player));
             m_unitTypeMask |= UnitTypeMask.Puppet;
         }
 
@@ -985,7 +986,7 @@ namespace Game.Entities
         {
             base.InitSummon();
             if (!SetCharmedBy(GetOwner(), CharmType.Possess))
-              Contract.Assert(false);
+                Cypher.Assert(false);
         }
 
         public override void Update(uint diff)

Source/Game/Entities/Transport.cs

@@ -21,7 +21,6 @@ using Game.DataStorage;
 using Game.Maps;
 using System;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 using System.Linq;
 
 namespace Game.Entities
@@ -72,7 +71,7 @@ namespace Game.Entities
 
         public override void Dispose()
         {
-            Contract.Assert(_passengers.Empty());
+            Cypher.Assert(_passengers.Empty());
             UnloadStaticPassengers();
             base.Dispose();
         }

Source/Game/Entities/Unit/Unit.Combat.cs

@@ -28,7 +28,6 @@ using Game.PvP;
 using Game.Spells;
 using System;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 using System.Linq;
 
 namespace Game.Entities
@@ -168,7 +167,7 @@ namespace Game.Entities
 
         public void TauntApply(Unit taunter)
         {
-            Contract.Assert(IsTypeId(TypeId.Unit));
+            Cypher.Assert(IsTypeId(TypeId.Unit));
 
             if (!taunter || (taunter.IsTypeId(TypeId.Player) && taunter.ToPlayer().IsGameMaster()))
                 return;
@@ -192,7 +191,7 @@ namespace Game.Entities
 
         public void TauntFadeOut(Unit taunter)
         {
-            Contract.Assert(IsTypeId(TypeId.Unit));
+            Cypher.Assert(IsTypeId(TypeId.Unit));
 
             if (!taunter || (taunter.IsTypeId(TypeId.Player) && taunter.ToPlayer().IsGameMaster()))
                 return;
@@ -1091,7 +1090,7 @@ namespace Game.Entities
                 {
                     Player he = duel_wasMounted ? victim.GetCharmer().ToPlayer() : victim.ToPlayer();
 
-                    Contract.Assert(he && he.duel != null);
+                    Cypher.Assert(he && he.duel != null);
 
                     if (duel_wasMounted) // In this case victim==mount
                         victim.SetHealth(1);
@@ -2882,7 +2881,7 @@ namespace Game.Entities
         // function based on function Unit.CanAttack from 13850 client
         public bool _IsValidAttackTarget(Unit target, SpellInfo bySpell, WorldObject obj = null)
         {
-            Contract.Assert(target != null);
+            Cypher.Assert(target != null);
 
             // can't attack self
             if (this == target)
@@ -3019,7 +3018,7 @@ namespace Game.Entities
         // function based on function Unit.CanAssist from 13850 client
         public bool _IsValidAssistTarget(Unit target, SpellInfo bySpell)
         {
-            Contract.Assert(target != null);
+            Cypher.Assert(target != null);
 
             // can assist to self
             if (this == target)

Source/Game/Entities/Unit/Unit.Pets.cs

@@ -20,7 +20,6 @@ using Game.AI;
 using Game.Network.Packets;
 using Game.Spells;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 using System.Linq;
 
 namespace Game.Entities
@@ -163,6 +162,7 @@ namespace Game.Entities
 
                 minion.SetOwnerGUID(GetGUID());
 
+                if (!m_Controlled.Contains(minion))
                     m_Controlled.Add(minion);
 
                 if (IsTypeId(TypeId.Player))
@@ -269,12 +269,12 @@ namespace Game.Entities
                         if (GetGUID() == unit.GetCharmerGUID())
                             continue;
 
-                        Contract.Assert(unit.GetOwnerGUID() == GetGUID());
+                        Cypher.Assert(unit.GetOwnerGUID() == GetGUID());
                         if (unit.GetOwnerGUID() != GetGUID())
                         {
-                            Contract.Assert(false);
+                            Cypher.Assert(false);
                         }
-                        Contract.Assert(unit.IsTypeId(TypeId.Unit));
+                        Cypher.Assert(unit.IsTypeId(TypeId.Unit));
 
                         if (!unit.HasUnitTypeMask(UnitTypeMask.Guardian))
                             continue;
@@ -308,8 +308,8 @@ namespace Game.Entities
             if (charmer.IsTypeId(TypeId.Player))
                 charmer.RemoveAurasByType(AuraType.Mounted);
 
-            Contract.Assert(type != CharmType.Possess || charmer.IsTypeId(TypeId.Player));
-            Contract.Assert((type == CharmType.Vehicle) == IsVehicle());
+            Cypher.Assert(type != CharmType.Possess || charmer.IsTypeId(TypeId.Player));
+            Cypher.Assert((type == CharmType.Vehicle) == IsVehicle());
 
             Log.outDebug(LogFilter.Unit, "SetCharmedBy: charmer {0} (GUID {1}), charmed {2} (GUID {3}), type {4}.", charmer.GetEntry(), charmer.GetGUID().ToString(), GetEntry(), GetGUID().ToString(), type);
 
@@ -505,8 +505,8 @@ namespace Game.Entities
             if (!charmer)
                 return;
 
-            Contract.Assert(type != CharmType.Possess || charmer.IsTypeId(TypeId.Player));
-            Contract.Assert(type != CharmType.Vehicle || (IsTypeId(TypeId.Unit) && IsVehicle()));
+            Cypher.Assert(type != CharmType.Possess || charmer.IsTypeId(TypeId.Player));
+            Cypher.Assert(type != CharmType.Vehicle || (IsTypeId(TypeId.Unit) && IsVehicle()));
 
             charmer.SetCharm(this, false);
 
@@ -574,7 +574,7 @@ namespace Game.Entities
             }
         }
 
-        void RemoveAllMinionsByEntry(uint entry)
+        public void RemoveAllMinionsByEntry(uint entry)
         {
             for (var i = 0; i < m_Controlled.Count; ++i)
             {
@@ -612,6 +612,7 @@ namespace Game.Entities
                 if (_isWalkingBeforeCharm)
                     charm.SetWalk(false);
 
+                if (!m_Controlled.Contains(charm))
                     m_Controlled.Add(charm);
             }
             else

Source/Game/Entities/Unit/Unit.Spells.cs

@@ -22,7 +22,6 @@ using Game.Network.Packets;
 using Game.Spells;
 using System;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 using System.Linq;
 
 namespace Game.Entities
@@ -1787,7 +1786,7 @@ namespace Game.Entities
             {
                 foreach (AuraApplication aurApp in procAuras)
                 {
-                    Contract.Assert(aurApp.GetTarget() == this);
+                    Cypher.Assert(aurApp.GetTarget() == this);
                     uint procEffectMask = aurApp.GetBase().IsProcTriggeredOnEvent(aurApp, eventInfo, now);
                     if (procEffectMask != 0)
                     {
@@ -1890,7 +1889,7 @@ namespace Game.Entities
                 ++m_procDeep;
             else
             {
-                Contract.Assert(m_procDeep != 0);
+                Cypher.Assert(m_procDeep != 0);
                 --m_procDeep;
             }
         }
@@ -1989,7 +1988,7 @@ namespace Game.Entities
         }
         public void SetCurrentCastSpell(Spell pSpell)
         {
-            Contract.Assert(pSpell != null);                                         // NULL may be never passed here, use InterruptSpell or InterruptNonMeleeSpells
+            Cypher.Assert(pSpell != null);                                         // NULL may be never passed here, use InterruptSpell or InterruptNonMeleeSpells
 
             CurrentSpellTypes CSpellType = pSpell.GetCurrentContainer();
 
@@ -2789,7 +2788,7 @@ namespace Game.Entities
         }
         public void InterruptSpell(CurrentSpellTypes spellType, bool withDelayed = true, bool withInstant = true)
         {
-            Contract.Assert(spellType < CurrentSpellTypes.Max);
+            Cypher.Assert(spellType < CurrentSpellTypes.Max);
 
             Log.outDebug(LogFilter.Unit, "Interrupt spell for unit {0}", GetEntry());
             Spell spell = m_currentSpells.LookupByKey(spellType);
@@ -3375,7 +3374,7 @@ namespace Game.Entities
         {
             Aura aura = keyValuePair.Value;
 
-            Contract.Assert(!aura.IsRemoved());
+            Cypher.Assert(!aura.IsRemoved());
 
             m_ownedAuras.Remove(keyValuePair);
             m_removedAuras.Add(aura);
@@ -3402,7 +3401,7 @@ namespace Game.Entities
             if (auraToRemove.IsRemoved())
                 return;
 
-            Contract.Assert(auraToRemove.GetOwner() == this);
+            Cypher.Assert(auraToRemove.GetOwner() == this);
 
             if (removeMode == AuraRemoveMode.None)
             {
@@ -3423,7 +3422,7 @@ namespace Game.Entities
                 }
             }
 
-            Contract.Assert(false);
+            Cypher.Assert(false);
         }
 
         public void RemoveAurasDueToSpell(uint spellId, ObjectGuid casterGUID = default(ObjectGuid), uint reqEffMask = 0, AuraRemoveMode removeMode = AuraRemoveMode.Default)
@@ -3612,7 +3611,7 @@ namespace Game.Entities
             {
                 Aura aura = m_modAuras[auraType][i].GetBase();
                 AuraApplication aurApp = aura.GetApplicationOfTarget(GetGUID());
-                Contract.Assert(aurApp != null);
+                Cypher.Assert(aurApp != null);
 
                 if (check(aurApp))
                 {
@@ -3833,16 +3832,16 @@ namespace Game.Entities
         public void _UnapplyAura(KeyValuePair<uint, AuraApplication> pair, AuraRemoveMode removeMode)
         {
             AuraApplication aurApp = pair.Value;
-            Contract.Assert(aurApp != null);
-            Contract.Assert(!aurApp.HasRemoveMode());
-            Contract.Assert(aurApp.GetTarget() == this);
+            Cypher.Assert(aurApp != null);
+            Cypher.Assert(!aurApp.HasRemoveMode());
+            Cypher.Assert(aurApp.GetTarget() == this);
 
             aurApp.SetRemoveMode(removeMode);
             Aura aura = aurApp.GetBase();
             Log.outDebug(LogFilter.Spells, "Aura {0} now is remove mode {1}", aura.GetId(), removeMode);
 
             // dead loop is killing the server probably
-            Contract.Assert(m_removedAurasCount < 0xFFFFFFFF);
+            Cypher.Assert(m_removedAurasCount < 0xFFFFFFFF);
 
             ++m_removedAurasCount;
 
@@ -3889,7 +3888,7 @@ namespace Game.Entities
             }
 
             // all effect mustn't be applied
-            Contract.Assert(aurApp.GetEffectMask() == 0);
+            Cypher.Assert(aurApp.GetEffectMask() == 0);
 
             // Remove totem at next update if totem loses its aura
             if (aurApp.GetRemoveMode() == AuraRemoveMode.Expire && IsTypeId(TypeId.Unit) && IsTotem())
@@ -3908,7 +3907,7 @@ namespace Game.Entities
         public void _UnapplyAura(AuraApplication aurApp, AuraRemoveMode removeMode)
         {
             // aura can be removed from unit only if it's applied on it, shouldn't happen
-            Contract.Assert(aurApp.GetBase().GetApplicationOfTarget(GetGUID()) == aurApp);
+            Cypher.Assert(aurApp.GetBase().GetApplicationOfTarget(GetGUID()) == aurApp);
 
             uint spellId = aurApp.GetBase().GetId();
             var range = m_appliedAuras.LookupByKey(spellId);
@@ -3921,7 +3920,7 @@ namespace Game.Entities
                     return;
                 }
             }
-            Contract.Assert(false);
+            Cypher.Assert(false);
         }
 
         public AuraEffect GetAuraEffect(uint spellId, uint effIndex, ObjectGuid casterGUID = default(ObjectGuid))
@@ -4009,10 +4008,10 @@ namespace Game.Entities
 
         public void _ApplyAuraEffect(Aura aura, uint effIndex)
         {
-            Contract.Assert(aura != null);
-            Contract.Assert(aura.HasEffect(effIndex));
+            Cypher.Assert(aura != null);
+            Cypher.Assert(aura.HasEffect(effIndex));
             AuraApplication aurApp = aura.GetApplicationOfTarget(GetGUID());
-            Contract.Assert(aurApp != null);
+            Cypher.Assert(aurApp != null);
             if (aurApp.GetEffectMask() == 0)
                 _ApplyAura(aurApp, (uint)(1 << (int)effIndex));
             else
@@ -4058,7 +4057,7 @@ namespace Game.Entities
         }
         public void _AddAura(UnitAura aura, Unit caster)
         {
-            Contract.Assert(!m_cleanupDone);
+            Cypher.Assert(!m_cleanupDone);
             m_ownedAuras.Add(aura.GetId(), aura);
 
             _RemoveNoStackAurasDueToAura(aura);
@@ -4073,7 +4072,7 @@ namespace Game.Entities
                 // @HACK: Player is not in world during loading auras.
                 //Single target auras are not saved or loaded from database
                 //but may be created as a result of aura links (player mounts with passengers)
-                Contract.Assert((IsInWorld && !IsDuringRemoveFromWorld()) || (aura.GetCasterGUID() == GetGUID()) || (IsLoading() && aura.HasEffectType(AuraType.ControlVehicle)));
+                Cypher.Assert((IsInWorld && !IsDuringRemoveFromWorld()) || (aura.GetCasterGUID() == GetGUID()) || (IsLoading() && aura.HasEffectType(AuraType.ControlVehicle)));
 
                 // register single target aura
                 caster.m_scAuras.Add(aura);
@@ -4090,7 +4089,7 @@ namespace Game.Entities
         }
         public Aura _TryStackingOrRefreshingExistingAura(SpellInfo newAura, uint effMask, Unit caster, int[] baseAmount = null, Item castItem = null, ObjectGuid casterGUID = default(ObjectGuid), bool resetPeriodicTimer = true, ObjectGuid castItemGuid = default(ObjectGuid), int castItemLevel = -1)
         {
-            Contract.Assert(!casterGUID.IsEmpty() || caster);
+            Cypher.Assert(!casterGUID.IsEmpty() || caster);
 
             // Check if these can stack anyway
             if (casterGUID.IsEmpty() && !newAura.IsStackableOnOneSlotWithDifferentCasters())

Source/Game/Entities/Unit/Unit.cs

@@ -30,7 +30,6 @@ using Game.Network.Packets;
 using Game.Spells;
 using System;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 using System.Linq;
 
 namespace Game.Entities
@@ -139,7 +138,7 @@ namespace Game.Entities
 
             // If this is set during update SetCantProc(false) call is missing somewhere in the code
             // Having this would prevent spells from being proced, so let's crash
-            Contract.Assert(m_procDeep == 0);
+            Cypher.Assert(m_procDeep == 0);
 
             if (CanHaveThreatList() && GetThreatManager().isNeedUpdateToClient(diff))
                 SendThreatListUpdate();
@@ -811,7 +810,7 @@ namespace Game.Entities
         public void _EnterVehicle(Vehicle vehicle, sbyte seatId, AuraApplication aurApp)
         {
             // Must be called only from aura handler
-            Contract.Assert(aurApp != null);
+            Cypher.Assert(aurApp != null);
 
             if (!IsAlive() || GetVehicleKit() == vehicle || vehicle.GetBase().IsOnVehicle(this))
                 return;
@@ -840,7 +839,7 @@ namespace Game.Entities
                 }
             }
 
-            Contract.Assert(!m_vehicle);
+            Cypher.Assert(!m_vehicle);
             vehicle.AddPassenger(this, seatId);
         }
 
@@ -866,12 +865,12 @@ namespace Game.Entities
                     continue;
 
                 // Make sure there is only one ride vehicle aura on target cast by the unit changing seat
-                Contract.Assert(rideVehicleEffect == null);
+                Cypher.Assert(rideVehicleEffect == null);
                 rideVehicleEffect = eff;
             }
 
             // Unit riding a vehicle must always have control vehicle aura on target
-            Contract.Assert(rideVehicleEffect != null);
+            Cypher.Assert(rideVehicleEffect != null);
 
             rideVehicleEffect.ChangeAmount((seatId < 0 ? GetTransSeat() : seatId) + 1);
         }
@@ -1764,12 +1763,12 @@ namespace Game.Entities
         public AuraApplication _CreateAuraApplication(Aura aura, uint effMask)
         {
             // can't apply aura on unit which is going to be deleted - to not create a memory leak
-            Contract.Assert(!m_cleanupDone);
+            Cypher.Assert(!m_cleanupDone);
             // aura musn't be removed
-            Contract.Assert(!aura.IsRemoved());
+            Cypher.Assert(!aura.IsRemoved());
 
             // aura mustn't be already applied on target
-            Contract.Assert(!aura.IsAppliedOnTarget(GetGUID()), "Unit._CreateAuraApplication: aura musn't be applied on target");
+            Cypher.Assert(!aura.IsAppliedOnTarget(GetGUID()), "Unit._CreateAuraApplication: aura musn't be applied on target");
 
             SpellInfo aurSpellInfo = aura.GetSpellInfo();
             uint aurId = aurSpellInfo.Id;

Source/Game/Entities/Vehicle.cs

@@ -22,7 +22,6 @@ using Game.DataStorage;
 using Game.Movement;
 using System;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 using System.Linq;
 
 namespace Game.Entities
@@ -64,9 +63,9 @@ namespace Game.Entities
         public void Dispose()
         {
             // @Uninstall must be called before this.
-            Contract.Assert(_status == Status.UnInstalling);
+            Cypher.Assert(_status == Status.UnInstalling);
             foreach (var pair in Seats)
-                Contract.Assert(pair.Value.IsEmpty());
+                Cypher.Assert(pair.Value.IsEmpty());
         }
 
         public void Install()
@@ -254,7 +253,7 @@ namespace Game.Entities
             Log.outDebug(LogFilter.Vehicle, "Vehicle ({0}, Entry {1}): installing accessory (Entry: {2}) on seat: {3}", _me.GetGUID().ToString(), GetCreatureEntry(), entry, seatId);
 
             TempSummon accessory = _me.SummonCreature(entry, _me, (TempSummonType)type, summonTime);
-            Contract.Assert(accessory);
+            Cypher.Assert(accessory);
 
             if (minion)
                 accessory.AddUnitTypeMask(UnitTypeMask.Accessory);
@@ -319,11 +318,11 @@ namespace Game.Entities
                 if (!seat.Value.IsEmpty())
                 {
                     Unit passenger = Global.ObjAccessor.GetUnit(GetBase(), seat.Value.Passenger.Guid);
-                    Contract.Assert(passenger != null);
+                    Cypher.Assert(passenger != null);
                     passenger.ExitVehicle();
                 }
 
-                Contract.Assert(seat.Value.IsEmpty());
+                Cypher.Assert(seat.Value.IsEmpty());
             }
 
             return true;
@@ -335,7 +334,7 @@ namespace Game.Entities
                 return null;
 
             var seat = GetSeatKeyValuePairForPassenger(unit);
-            Contract.Assert(seat.Value != null);
+            Cypher.Assert(seat.Value != null);
 
             Log.outDebug( LogFilter.Vehicle, "Unit {0} exit vehicle entry {1} id {2} dbguid {3} seat {4}",
                 unit.GetName(), _me.GetEntry(), _vehicleInfo.Id, _me.GetGUID().ToString(), seat.Key);
@@ -371,7 +370,7 @@ namespace Game.Entities
 
         public void RelocatePassengers()
         {
-            Contract.Assert(_me.GetMap() != null);
+            Cypher.Assert(_me.GetMap() != null);
 
             List<Tuple<Unit, Position>> seatRelocation = new List<Tuple<Unit, Position>>();
 
@@ -381,7 +380,7 @@ namespace Game.Entities
                 Unit passenger = Global.ObjAccessor.GetUnit(GetBase(), pair.Value.Passenger.Guid);
                 if (passenger != null)
                 {
-                    Contract.Assert(passenger.IsInWorld);
+                    Cypher.Assert(passenger.IsInWorld);
 
                     float px, py, pz, po;
                     passenger.m_movementInfo.transport.pos.GetPosition(out px, out py, out pz, out po);
@@ -543,9 +542,9 @@ namespace Game.Entities
 
         public override bool Execute(ulong e_time, uint p_time)
         {
-            Contract.Assert(Passenger.IsInWorld);
-            Contract.Assert(Target != null && Target.GetBase().IsInWorld);
-            Contract.Assert(Target.GetBase().HasAuraTypeWithCaster(AuraType.ControlVehicle, Passenger.GetGUID()));
+            Cypher.Assert(Passenger.IsInWorld);
+            Cypher.Assert(Target != null && Target.GetBase().IsInWorld);
+            Cypher.Assert(Target.GetBase().HasAuraTypeWithCaster(AuraType.ControlVehicle, Passenger.GetGUID()));
 
             Target.RemovePendingEventsForSeat(Seat.Key);
             Target.RemovePendingEventsForPassenger(Passenger);
@@ -555,7 +554,7 @@ namespace Game.Entities
             Seat.Value.Passenger.IsUnselectable = Passenger.HasFlag(UnitFields.Flags, UnitFlags.NotSelectable);
             if (Seat.Value.SeatInfo.CanEnterOrExit())
             {
-                Contract.Assert(Target.UsableSeatNum != 0);
+                Cypher.Assert(Target.UsableSeatNum != 0);
                 --Target.UsableSeatNum;
                 if (Target.UsableSeatNum == 0)
                 {
@@ -596,7 +595,7 @@ namespace Game.Entities
 
             if (Target.GetBase().IsTypeId(TypeId.Unit) && Passenger.IsTypeId(TypeId.Player) &&
                 Seat.Value.SeatInfo.Flags.HasAnyFlag(VehicleSeatFlags.CanControl))
-                Contract.Assert(Target.GetBase().SetCharmedBy(Passenger, CharmType.Vehicle));  // SMSG_CLIENT_CONTROL
+                Cypher.Assert(Target.GetBase().SetCharmedBy(Passenger, CharmType.Vehicle));  // SMSG_CLIENT_CONTROL
 
             Passenger.SendClearTarget();                            // SMSG_BREAK_TARGET
             Passenger.SetControlled(true, UnitState.Root);         // SMSG_FORCE_ROOT - In some cases we send SMSG_SPLINE_MOVE_ROOT here (for creatures)

Source/Game/Garrisons/GarrisonManager.cs

@@ -21,7 +21,6 @@ using Game.DataStorage;
 using Game.Entities;
 using System;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 using System.Linq;
 
 namespace Game.Garrisons
@@ -173,7 +172,7 @@ namespace Game.Garrisons
         //todo check this method, might be slow.....
         public List<GarrAbilityRecord> RollFollowerAbilities(uint garrFollowerId, GarrFollowerRecord follower, uint quality, uint faction, bool initial)
         {
-            Contract.Assert(faction< 2);
+            Cypher.Assert(faction< 2);
 
             bool hasForcedExclusiveTrait = false;
             List<GarrAbilityRecord> result = new List<GarrAbilityRecord>();

Source/Game/Garrisons/Garrisons.cs

@@ -25,7 +25,6 @@ using Game.Maps;
 using Game.Network.Packets;
 using System;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 
 namespace Game.Garrisons
 {
@@ -426,7 +425,7 @@ namespace Game.Garrisons
                 {
                     // Restore previous level building
                     uint restored = Global.GarrisonMgr.GetPreviousLevelBuilding(constructing.BuildingType, constructing.UpgradeLevel);
-                    Contract.Assert(restored != 0);
+                    Cypher.Assert(restored != 0);
 
                     GarrisonPlaceBuildingResult placeBuildingResult = new GarrisonPlaceBuildingResult();
                     placeBuildingResult.GarrTypeID = GarrisonType.Garrison;

Source/Game/Globals/ObjectManager.cs

@@ -29,7 +29,6 @@ using Game.Scripting;
 using Game.Spells;
 using System;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 using System.Linq;
 using System.Runtime.InteropServices;
 using Framework.Dynamic;
@@ -3017,7 +3016,7 @@ namespace Game
                     {
                         if (spellEffect != null && spellEffect.IsEffect(SpellEffectName.LearnSpell))
                         {
-                            Contract.Assert(spell.LearnedSpellId == spell.SpellId, $"Only one learned spell is currently supported - spell {spell.SpellId} already teaches {spell.LearnedSpellId} but it tried to overwrite it with {spellEffect.TriggerSpell}");
+                            Cypher.Assert(spell.LearnedSpellId == spell.SpellId, $"Only one learned spell is currently supported - spell {spell.SpellId} already teaches {spell.LearnedSpellId} but it tried to overwrite it with {spellEffect.TriggerSpell}");
                             spell.LearnedSpellId = spellEffect.TriggerSpell;
                             break;
                         }
@@ -9267,7 +9266,7 @@ namespace Game
         }
         public ObjectGuidGenerator GetGenerator(HighGuid high)
         {
-            Contract.Assert(ObjectGuid.IsGlobal(high) || ObjectGuid.IsRealmSpecific(high), "Only global guid can be generated in ObjectMgr context");
+            Cypher.Assert(ObjectGuid.IsGlobal(high) || ObjectGuid.IsRealmSpecific(high), "Only global guid can be generated in ObjectMgr context");
 
             return GetGuidSequenceGenerator(high);
         }

Source/Game/Groups/Group.cs

@@ -27,7 +27,6 @@ using Game.Network;
 using Game.Network.Packets;
 using System;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 using System.Linq;
 
 namespace Game.Groups
@@ -113,7 +112,7 @@ namespace Game.Groups
 
                 ConvertLeaderInstancesToGroup(leader, this, false);
 
-                Contract.Assert(AddMember(leader)); // If the leader can't be added to a new group because it appears full, something is clearly wrong.
+                Cypher.Assert(AddMember(leader)); // If the leader can't be added to a new group because it appears full, something is clearly wrong.
             }
             else if (!AddMember(leader))
                 return false;
@@ -898,7 +897,7 @@ namespace Game.Groups
         // notify group members which player is the allowed looter for the given creature
         public void SendLooter(Creature creature, Player groupLooter)
         {
-            Contract.Assert(creature);
+            Cypher.Assert(creature);
 
             LootList lootList = new LootList();
             lootList.Owner = creature.GetGUID();

Source/Game/Guilds/Guild.cs

@@ -25,7 +25,6 @@ using Game.Network;
 using Game.Network.Packets;
 using System;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 using System.Linq;
 
 namespace Game.Guilds
@@ -2087,7 +2086,7 @@ namespace Game.Guilds
 
         void _SendBankContentUpdate(MoveItemData pSrc, MoveItemData pDest)
         {
-            Contract.Assert(pSrc.IsBank() || pDest.IsBank());
+            Cypher.Assert(pSrc.IsBank() || pDest.IsBank());
 
             byte tabId = 0;
             List<byte> slots = new List<byte>();
@@ -2249,7 +2248,7 @@ namespace Game.Guilds
         void SendGuildRanksUpdate(ObjectGuid setterGuid, ObjectGuid targetGuid, uint rank)
         {
             Member member = GetMember(targetGuid);
-            Contract.Assert(member != null);
+            Cypher.Assert(member != null);
 
             GuildSendRankChange rankChange = new GuildSendRankChange();
             rankChange.Officer = setterGuid;
@@ -3468,7 +3467,7 @@ namespace Game.Guilds
 
             public virtual bool CheckItem(ref uint splitedAmount)
             {
-                Contract.Assert(m_pItem != null);
+                Cypher.Assert(m_pItem != null);
                 if (splitedAmount > m_pItem.GetCount())
                     return false;
                 if (splitedAmount == m_pItem.GetCount())
@@ -3487,7 +3486,7 @@ namespace Game.Guilds
 
             public bool CloneItem(uint count)
             {
-                Contract.Assert(m_pItem != null);
+                Cypher.Assert(m_pItem != null);
                 m_pClonedItem = m_pItem.CloneItem(count);
                 if (m_pClonedItem == null)
                 {
@@ -3499,7 +3498,7 @@ namespace Game.Guilds
 
             public virtual void LogAction(MoveItemData pFrom)
             {
-                Contract.Assert(pFrom.GetItem() != null);
+                Cypher.Assert(pFrom.GetItem() != null);
 
                 Global.ScriptMgr.OnGuildItemMove(m_pGuild, m_pPlayer, pFrom.GetItem(),
                      pFrom.IsBank(), pFrom.GetContainer(), pFrom.GetSlotId(),
@@ -3588,7 +3587,7 @@ namespace Game.Guilds
 
             public override Item StoreItem(SQLTransaction trans, Item pItem)
             {
-                Contract.Assert(pItem != null);
+                Cypher.Assert(pItem != null);
                 m_pPlayer.MoveItemToInventory(m_vec, pItem, true);
                 m_pPlayer.SaveInventoryAndGoldToDB(trans);
                 return pItem;
@@ -3596,7 +3595,7 @@ namespace Game.Guilds
 
             public override void LogBankEvent(SQLTransaction trans, MoveItemData pFrom, uint count)
             {
-                Contract.Assert(pFrom != null);
+                Cypher.Assert(pFrom != null);
                 // Bank . Char
                 m_pGuild._LogBankEvent(trans, GuildBankEventLogTypes.WithdrawItem, pFrom.GetContainer(), m_pPlayer.GetGUID().GetCounter(),
                     pFrom.GetItem().GetEntry(), (ushort)count);
@@ -3622,7 +3621,7 @@ namespace Game.Guilds
             }
             public override bool HasStoreRights(MoveItemData pOther)
             {
-                Contract.Assert(pOther != null);
+                Cypher.Assert(pOther != null);
                 // Do not check rights if item is being swapped within the same bank tab
                 if (pOther.IsBank() && pOther.GetContainer() == m_container)
                     return true;
@@ -3631,7 +3630,7 @@ namespace Game.Guilds
 
             public override bool HasWithdrawRights(MoveItemData pOther)
             {
-                Contract.Assert(pOther != null);
+                Cypher.Assert(pOther != null);
                 // Do not check rights if item is being swapped within the same bank tab
                 if (pOther.IsBank() && pOther.GetContainer() == m_container)
                     return true;
@@ -3646,7 +3645,7 @@ namespace Game.Guilds
 
             public override void RemoveItem(SQLTransaction trans, MoveItemData pOther, uint splitedAmount = 0)
             {
-                Contract.Assert(m_pItem != null);
+                Cypher.Assert(m_pItem != null);
                 if (splitedAmount != 0)
                 {
                     m_pItem.SetCount(m_pItem.GetCount() - splitedAmount);
@@ -3684,7 +3683,7 @@ namespace Game.Guilds
 
             public override void LogBankEvent(SQLTransaction trans, MoveItemData pFrom, uint count)
             {
-               Contract.Assert(pFrom.GetItem() != null);
+               Cypher.Assert(pFrom.GetItem() != null);
                 if (pFrom.IsBank())
                     // Bank . Bank
                     m_pGuild._LogBankEvent(trans, GuildBankEventLogTypes.MoveItem, pFrom.GetContainer(), m_pPlayer.GetGUID().GetCounter(),

Source/Game/Handlers/CombatHandler.cs

@@ -21,7 +21,6 @@ using Game.Entities;
 using Game.Network;
 using Game.Network.Packets;
 using System;
-using System.Diagnostics.Contracts;
 
 namespace Game
 {
@@ -52,7 +51,7 @@ namespace Game
             if (vehicle)
             {
                 VehicleSeatRecord seat = vehicle.GetSeatForPassenger(GetPlayer());
-                Contract.Assert(seat != null);
+                Cypher.Assert(seat != null);
                 if (!seat.Flags.HasAnyFlag(VehicleSeatFlags.CanAttack))
                 {
                     SendAttackStop(enemy);

Source/Game/Handlers/GroupHandler.cs

@@ -20,7 +20,6 @@ using Game.Entities;
 using Game.Groups;
 using Game.Network;
 using Game.Network.Packets;
-using System.Diagnostics.Contracts;
 
 namespace Game
 {
@@ -204,7 +203,7 @@ namespace Game
                     }
 
                     // If we're about to create a group there really should be a leader present
-                    Contract.Assert(leader);
+                    Cypher.Assert(leader);
                     group.RemoveInvite(leader);
                     group.Create(leader);
                     Global.GroupMgr.AddGroup(group);
@@ -253,7 +252,7 @@ namespace Game
 
             Group grp = GetPlayer().GetGroup();
             // grp is checked already above in CanUninviteFromGroup()
-            Contract.Assert(grp);
+            Cypher.Assert(grp);
 
             if (grp.IsMember(packet.TargetGUID))
             {

Source/Game/Handlers/PetHandler.cs

@@ -22,7 +22,6 @@ using Game.Network;
 using Game.Network.Packets;
 using Game.Spells;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 
 namespace Game
 {
@@ -231,7 +230,7 @@ namespace Game
                                 GetPlayer().StopCastingCharm();
                             else if (pet.GetOwnerGUID() == GetPlayer().GetGUID())
                             {
-                                Contract.Assert(pet.IsTypeId(TypeId.Unit));
+                                Cypher.Assert(pet.IsTypeId(TypeId.Unit));
                                 if (pet.IsPet())
                                 {
                                     if (pet.ToPet().getPetType() == PetType.Hunter)

Source/Game/Handlers/VehicleHandler.cs

@@ -20,7 +20,6 @@ using Game.DataStorage;
 using Game.Entities;
 using Game.Network;
 using Game.Network.Packets;
-using System.Diagnostics.Contracts;
 
 namespace Game
 {
@@ -185,7 +184,7 @@ namespace Game
                 }
 
                 VehicleSeatRecord seat = vehicle.GetSeatForPassenger(unit);
-                Contract.Assert(seat != null);
+                Cypher.Assert(seat != null);
                 if (seat.IsEjectable())
                     unit.ExitVehicle();
                 else

Source/Game/Maps/GridNotifiers.cs

@@ -28,7 +28,7 @@ using System.Collections.Concurrent;
 
 namespace Game.Maps
 {
-    public abstract class Notifier
+    public class Notifier
     {
         public virtual void Visit(IList<WorldObject> objs) { }
         public virtual void Visit(IList<Creature> objs) { }

Source/Game/Maps/Instances/InstanceSaveManager.cs

@@ -23,7 +23,6 @@ using Game.Groups;
 using Game.Scenarios;
 using System;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 using System.Linq;
 
 namespace Game.Maps
@@ -426,7 +425,7 @@ namespace Game.Maps
                 InstanceBind bind = player.GetBoundInstance(pair.Value.GetMapId(), pair.Value.GetDifficultyID());
                 if (bind != null)
                 {
-                    Contract.Assert(bind.save == pair.Value);
+                    Cypher.Assert(bind.save == pair.Value);
                     if (bind.perm && bind.extendState != 0) // permanent and not already expired
                     {
                         // actual promotion in DB already happened in caller
@@ -602,7 +601,7 @@ namespace Game.Maps
         void SetResetTimeFor(uint mapid, Difficulty d, long t)
         {
             var key = MathFunctions.MakePair64(mapid, (uint)d);
-            Contract.Assert(m_resetTimeByMapDifficulty.ContainsKey(key));
+            Cypher.Assert(m_resetTimeByMapDifficulty.ContainsKey(key));
             m_resetTimeByMapDifficulty[key] = t;
         }
 
@@ -662,7 +661,7 @@ namespace Game.Maps
             Map map = Global.MapMgr.FindMap(GetMapId(), m_instanceid);
             if (map != null)
             {
-                Contract.Assert(map.IsDungeon());
+                Cypher.Assert(map.IsDungeon());
                 InstanceScript instanceScript = ((InstanceMap)map).GetInstanceScript();
                 if (instanceScript != null)
                 {

Source/Game/Maps/Instances/InstanceScript.cs

@@ -23,7 +23,6 @@ using Game.Groups;
 using Game.Network.Packets;
 using Game.Scenarios;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 using System.Text;
 
 namespace Game.Maps
@@ -157,7 +156,7 @@ namespace Game.Maps
         {
             foreach (var data in objectData)
             {
-                Contract.Assert(!objectInfo.ContainsKey(data.entry));
+                Cypher.Assert(!objectInfo.ContainsKey(data.entry));
                 objectInfo[data.entry] = data.type;
             }
         }
@@ -216,7 +215,7 @@ namespace Game.Maps
 
         public BossInfo GetBossInfo(uint id)
         {
-            Contract.Assert(id < bosses.Count);
+            Cypher.Assert(id < bosses.Count);
             return bosses[id];
         }
 

Source/Game/Maps/Instances/MapInstance.cs

@@ -23,7 +23,6 @@ using Game.Garrisons;
 using Game.Groups;
 using Game.Scenarios;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 using System.Linq;
 
 namespace Game.Maps
@@ -181,13 +180,13 @@ namespace Game.Maps
                 if (entry == null)
                 {
                     Log.outError(LogFilter.Maps, "CreateInstance: no record for map {0}", GetId());
-                    Contract.Assert(false);
+                    Cypher.Assert(false);
                 }
                 InstanceTemplate iTemplate = Global.ObjectMgr.GetInstanceTemplate(GetId());
                 if (iTemplate == null)
                 {
                     Log.outError(LogFilter.Maps, "CreateInstance: no instance template for map {0}", GetId());
-                    Contract.Assert(false);
+                    Cypher.Assert(false);
                 }
 
                 // some instances only have one difficulty
@@ -196,7 +195,7 @@ namespace Game.Maps
                 Log.outDebug(LogFilter.Maps, "MapInstanced.CreateInstance: {0} map instance {1} for {2} created with difficulty {3}", save != null ? "" : "new ", InstanceId, GetId(), difficulty);
 
                 InstanceMap map = new InstanceMap(GetId(), GetGridExpiry(), InstanceId, difficulty, this);
-                Contract.Assert(map.IsDungeon());
+                Cypher.Assert(map.IsDungeon());
 
                 map.LoadRespawnTimes();
                 map.LoadCorpseData();
@@ -222,7 +221,7 @@ namespace Game.Maps
                 Log.outDebug(LogFilter.Maps, "MapInstanced.CreateBattleground: map bg {0} for {1} created.", InstanceId, GetId());
 
                 BattlegroundMap map = new BattlegroundMap(GetId(), (uint)GetGridExpiry(), InstanceId, this, Difficulty.None);
-                Contract.Assert(map.IsBattlegroundOrArena());
+                Cypher.Assert(map.IsBattlegroundOrArena());
                 map.SetBG(bg);
                 bg.SetBgMap(map);
 
@@ -236,7 +235,7 @@ namespace Game.Maps
             lock (_mapLock)
             {
                 GarrisonMap map = new GarrisonMap(GetId(), GetGridExpiry(), instanceId, this, owner.GetGUID());
-                Contract.Assert(map.IsGarrison());
+                Cypher.Assert(map.IsGarrison());
 
                 m_InstancedMaps[instanceId] = map;
                 return map;

Source/Game/Maps/MMapManager.cs

@@ -19,7 +19,6 @@ using Framework.Constants;
 using Game.DataStorage;
 using System;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 using System.IO;
 using System.Linq;
 using System.Runtime.InteropServices;
@@ -116,7 +115,7 @@ namespace Game
 
             // get this mmap data
             MMapData mmap = loadedMMaps[mapId];
-            Contract.Assert(mmap.navMesh != null);
+            Cypher.Assert(mmap.navMesh != null);
 
             // check if we already have this tile loaded
             uint packedGridPos = packTileID(x, y);
@@ -247,7 +246,7 @@ namespace Game
                 // if the grid is later reloaded, dtNavMesh.addTile will return error but no extra memory is used
                 // we cannot recover from this error - assert out
                 Log.outError(LogFilter.Maps, "MMAP:unloadMap: Could not unload {0:D4}{1:D2}{2:D2}.mmtile from navmesh", mapId, x, y);
-                Contract.Assert(false);
+                Cypher.Assert(false);
             }
             else
             {

Source/Game/Maps/Map.cs

@@ -30,7 +30,6 @@ using Game.Scenarios;
 using System;
 using System.Collections;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 using System.IO;
 using System.Linq;
 
@@ -93,7 +92,7 @@ namespace Game.Maps
             for (var i = 0; i < i_worldObjects.Count; ++i)
             {
                 WorldObject obj = i_worldObjects[i];
-                Contract.Assert(obj.IsWorldObject());
+                Cypher.Assert(obj.IsWorldObject());
                 obj.RemoveFromWorld();
                 obj.ResetMap();
             }
@@ -334,7 +333,7 @@ namespace Game.Maps
 
             Log.outDebug(LogFilter.Maps, "Switch object {0} from grid[{1}, {2}] {3}", obj.GetGUID(), cell.GetGridX(), cell.GetGridY(), on);
             Grid ngrid = getGrid(cell.GetGridX(), cell.GetGridY());
-            Contract.Assert(ngrid != null);
+            Cypher.Assert(ngrid != null);
 
             RemoveFromGrid(obj, cell);
 
@@ -462,7 +461,7 @@ namespace Game.Maps
             EnsureGridLoadedForActiveObject(cell, player);
             AddToGrid(player, cell);
 
-            Contract.Assert(player.GetMap() == this);
+            Cypher.Assert(player.GetMap() == this);
             player.SetMap(this);
             player.AddToWorld();
 
@@ -986,7 +985,7 @@ namespace Game.Maps
             Cell integrity_check = new Cell(dynObj.GetPositionX(), dynObj.GetPositionY());
             Cell old_cell = dynObj.GetCurrentCell();
 
-            Contract.Assert(integrity_check == old_cell);
+            Cypher.Assert(integrity_check == old_cell);
 
             Cell new_cell = new Cell(x, y);
 
@@ -1013,7 +1012,7 @@ namespace Game.Maps
             old_cell = dynObj.GetCurrentCell();
             integrity_check = new Cell(dynObj.GetPositionX(), dynObj.GetPositionY());
 
-            Contract.Assert(integrity_check == old_cell);
+            Cypher.Assert(integrity_check == old_cell);
         }
 
         public void AreaTriggerRelocation(AreaTrigger at, float x, float y, float z, float orientation)
@@ -1021,7 +1020,7 @@ namespace Game.Maps
             Cell integrity_check = new Cell(at.GetPositionX(), at.GetPositionY());
             Cell old_cell = at.GetCurrentCell();
 
-            Contract.Assert(integrity_check == old_cell);
+            Cypher.Assert(integrity_check == old_cell);
             Cell new_cell = new Cell(x, y);
 
             if (getGrid(new_cell.GetGridX(), new_cell.GetGridY()) == null)
@@ -1045,7 +1044,7 @@ namespace Game.Maps
 
             old_cell = at.GetCurrentCell();
             integrity_check = new Cell(at.GetPositionX(), at.GetPositionY());
-            Contract.Assert(integrity_check == old_cell);
+            Cypher.Assert(integrity_check == old_cell);
         }
 
         void AddCreatureToMoveList(Creature c, float x, float y, float z, float ang)
@@ -1595,7 +1594,7 @@ namespace Game.Maps
                 grid.VisitAllGrids(visitor);
             }
 
-            Contract.Assert(i_objectsToRemove.Empty());
+            Cypher.Assert(i_objectsToRemove.Empty());
             setGrid(null, x, y);
 
             uint gx = (MapConst.MaxGrids - 1) - x;
@@ -2221,7 +2220,7 @@ namespace Game.Maps
             while (!_updateObjects.Empty())
             {
                 WorldObject obj = _updateObjects[0];
-                Contract.Assert(obj.IsInWorld);
+                Cypher.Assert(obj.IsInWorld);
                 _updateObjects.RemoveAt(0);
                 obj.BuildUpdate(update_players);
             }
@@ -2265,7 +2264,7 @@ namespace Game.Maps
 
         public void AddObjectToRemoveList(WorldObject obj)
         {
-            Contract.Assert(obj.GetMapId() == GetId() && obj.GetInstanceId() == GetInstanceId());
+            Cypher.Assert(obj.GetMapId() == GetId() && obj.GetInstanceId() == GetInstanceId());
 
             obj.CleanupsBeforeDelete(false); // remove or simplify at least cross referenced links
 
@@ -2274,7 +2273,7 @@ namespace Game.Maps
 
         public void AddObjectToSwitchList(WorldObject obj, bool on)
         {
-            Contract.Assert(obj.GetMapId() == GetId() && obj.GetInstanceId() == GetInstanceId());
+            Cypher.Assert(obj.GetMapId() == GetId() && obj.GetInstanceId() == GetInstanceId());
             // i_objectsToSwitch is iterated only in Map::RemoveAllObjectsInRemoveList() and it uses
             // the contained objects only if GetTypeId() == TYPEID_UNIT , so we can return in all other cases
             if (!obj.IsTypeId(TypeId.Unit) && !obj.IsTypeId(TypeId.GameObject))
@@ -2285,7 +2284,7 @@ namespace Game.Maps
             else if (i_objectsToSwitch[obj] != on)
                 i_objectsToSwitch.Remove(obj);
             else
-                Contract.Assert(false);
+                Cypher.Assert(false);
         }
 
         void RemoveAllObjectsInRemoveList()
@@ -2678,7 +2677,7 @@ namespace Game.Maps
 
         void RemoveCorpse(Corpse corpse)
         {
-            Contract.Assert(corpse);
+            Cypher.Assert(corpse);
 
             corpse.DestroyForNearbyPlayers();
             if (corpse.GetCurrentCell() != null)
@@ -3368,7 +3367,7 @@ namespace Game.Maps
 
         public ulong GenerateLowGuid(HighGuid high)
         {
-            //Contract.Assert(!ObjectGuid.IsMapSpecific(high), "Only map specific guid can be generated in Map context");
+            //Cypher.Assert(!ObjectGuid.IsMapSpecific(high), "Only map specific guid can be generated in Map context");
 
             return GetGuidSequenceGenerator(high).Generate();
         }
@@ -4402,7 +4401,7 @@ namespace Game.Maps
             if (player.GetMap() == this)
             {
                 Log.outError(LogFilter.Maps, "InstanceMap:CannotEnter - player {0} ({1}) already in map {2}, {3}, {4}!", player.GetName(), player.GetGUID().ToString(), GetId(), GetInstanceId(), GetSpawnMode());
-                Contract.Assert(false);
+                Cypher.Assert(false);
                 return EnterState.CannotEnterAlreadyInMap;
             }
 
@@ -4456,7 +4455,7 @@ namespace Game.Maps
                         mapSave = Global.InstanceSaveMgr.AddInstanceSave(GetId(), GetInstanceId(), GetSpawnMode(), 0, 0, true);
                     }
 
-                    Contract.Assert(mapSave != null);
+                    Cypher.Assert(mapSave != null);
 
                     // check for existing instance binds
                     InstanceBind playerBind = player.GetBoundInstance(GetId(), GetSpawnMode());
@@ -4497,7 +4496,7 @@ namespace Game.Maps
                                         GetMapName(), groupBind.save.GetMapId(), groupBind.save.GetInstanceId(),
                                         groupBind.save.GetDifficultyID(), groupBind.save.GetPlayerCount(),
                                         groupBind.save.GetGroupCount(), groupBind.save.CanReset());
-                                Contract.Assert(false);
+                                Cypher.Assert(false);
                                 return false;
                             }
                             // bind to the group or keep using the group save
@@ -4544,7 +4543,7 @@ namespace Game.Maps
                                 player.BindToInstance(mapSave, false);
                             else
                                 // cannot jump to a different instance without resetting it
-                                Contract.Assert(playerBind.save == mapSave);
+                                Cypher.Assert(playerBind.save == mapSave);
                         }
                     }
                 }
@@ -4753,7 +4752,7 @@ namespace Game.Maps
 
         public override void UnloadAll()
         {
-            Contract.Assert(!HavePlayers());
+            Cypher.Assert(!HavePlayers());
 
             if (m_resetAfterUnload)
             {
@@ -4849,7 +4848,7 @@ namespace Game.Maps
             if (player.GetMap() == this)
             {
                 Log.outError(LogFilter.Maps, "BGMap:CannotEnter - player {0} is already in map!", player.GetGUID().ToString());
-                Contract.Assert(false);
+                Cypher.Assert(false);
                 return EnterState.CannotEnterAlreadyInMap;
             }
 

Source/Game/Maps/MapManager.cs

@@ -21,7 +21,6 @@ using Game.Groups;
 using Game.Maps;
 using System;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 using System.Linq;
 
 namespace Game.Entities
@@ -60,7 +59,7 @@ namespace Game.Entities
             if (map == null)
             {
                 var entry = CliDB.MapStorage.LookupByKey(id);
-                Contract.Assert(entry != null);
+                Cypher.Assert(entry != null);
                 if (entry.ParentMapID != -1)
                 {
                     CreateBaseMap((uint)entry.ParentMapID);
@@ -73,7 +72,7 @@ namespace Game.Entities
                 lock(_mapsLock)
                     map = CreateBaseMap_i(entry);
             }
-            Contract.Assert(map != null);
+            Cypher.Assert(map != null);
             return map;
         }
 

Source/Game/Maps/TransportManager.cs

@@ -23,7 +23,6 @@ using Game.Entities;
 using Game.Movement;
 using System;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 using System.Linq;
 
 namespace Game.Maps
@@ -161,12 +160,12 @@ namespace Game.Maps
                 }
             }
 
-            Contract.Assert(!keyFrames.Empty());
+            Cypher.Assert(!keyFrames.Empty());
 
             if (transport.mapsUsed.Count > 1)
             {
                 foreach (var mapId in transport.mapsUsed)
-                    Contract.Assert(!CliDB.MapStorage.LookupByKey(mapId).Instanceable());
+                    Cypher.Assert(!CliDB.MapStorage.LookupByKey(mapId).Instanceable());
 
                 transport.inInstance = false;
             }

Source/Game/Movement/Generators/SplineChainMovementGenerator.cs

@@ -20,7 +20,6 @@ using Framework.GameMath;
 using Game.Entities;
 using System;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 using System.Linq;
 
 namespace Game.Movement
@@ -49,7 +48,7 @@ namespace Game.Movement
         uint SendPathSpline(Unit me, List<Vector3> wp)
         {
             int numWp = wp.Count;
-            Contract.Assert(numWp > 1, "Every path must have source & destination");
+            Cypher.Assert(numWp > 1, "Every path must have source & destination");
             MoveSplineInit init = new MoveSplineInit(me);
             if (numWp > 2)
                 init.MovebyPath(wp.ToArray());
@@ -61,7 +60,7 @@ namespace Game.Movement
 
         void SendSplineFor(Unit me, int index, uint toNext)
         {
-            Contract.Assert(index < _chainSize);
+            Cypher.Assert(index < _chainSize);
             Log.outDebug(LogFilter.Movement, "{0}: Sending spline for {1}.", me.GetGUID().ToString(), index);
 
             SplineChainLink thisLink = _chain[index];

Source/Game/Movement/Generators/WaypointMovement.cs

@@ -278,6 +278,7 @@ namespace Game.Movement
 
             return true;
         }
+
         void LoadPath(Creature creature)
         {
             if (loadedFromDB)
@@ -298,6 +299,7 @@ namespace Game.Movement
             if (!Stopped())
                 StartMoveNow(creature);
         }
+
         void OnArrived(Creature creature)
         {
             if (path == null || path.nodes.Empty())

Source/Game/Movement/MotionMaster.cs

@@ -22,7 +22,6 @@ using Game.DataStorage;
 using Game.Entities;
 using System;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 
 namespace Game.Movement
 {
@@ -78,7 +77,7 @@ namespace Game.Movement
             if (_owner.HasUnitState(UnitState.Root | UnitState.Stunned))
                 return;
 
-            Contract.Assert(!empty());
+            Cypher.Assert(!empty());
 
             _cleanFlag |= MMCleanFlag.Update;
             bool isMoveGenUpdateSuccess = top().Update(_owner, diff);
@@ -157,7 +156,7 @@ namespace Game.Movement
 
         public IMovementGenerator GetMotionSlot(int slot)
         {
-            Contract.Assert(slot >= 0);
+            Cypher.Assert(slot >= 0);
             return _slot[slot];
         }
 
@@ -744,7 +743,7 @@ namespace Game.Movement
 
         public IMovementGenerator top()
         {
-            Contract.Assert(!empty());
+            Cypher.Assert(!empty());
             return _slot[_top];
         }
 

Source/Game/Network/PacketUtilities.cs

@@ -16,7 +16,6 @@
  */
 
 using System;
-using System.Diagnostics.Contracts;
 
 namespace Game.Network
 {
@@ -24,7 +23,7 @@ namespace Game.Network
     {
         public void Insert(int index, int value)
         {
-            Contract.Assert(index < 0x20);
+            Cypher.Assert(index < 0x20);
 
             _mask |= 1u << index;
             if (_contents.Length <= index)

Source/Game/Network/Packets/CharacterPackets.cs

@@ -23,7 +23,6 @@ using Framework.IO;
 using Game.Entities;
 using System;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 
 namespace Game.Network.Packets
 {
@@ -583,7 +582,7 @@ namespace Game.Network.Packets
 
         public override void Write()
         {
-            Contract.Assert(UndeleteInfo != null);
+            Cypher.Assert(UndeleteInfo != null);
             _worldPacket.WriteInt32(UndeleteInfo.ClientToken);
             _worldPacket.WriteUInt32(Result);
             _worldPacket.WritePackedGuid(UndeleteInfo.CharacterGuid);

Source/Game/Network/Packets/QueryPackets.cs

@@ -23,7 +23,6 @@ using Framework.IO;
 using Game.Entities;
 using System;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 
 namespace Game.Network.Packets
 {
@@ -621,7 +620,7 @@ namespace Game.Network.Packets
 
             if (player)
             {
-                Contract.Assert(player.GetGUID() == guid);
+                Cypher.Assert(player.GetGUID() == guid);
 
                 AccountID = player.GetSession().GetAccountGUID();
                 BnetAccountID = player.GetSession().GetBattlenetAccountGUID();

Source/Game/OutdoorPVP/OutdoorPvP.cs

@@ -27,7 +27,6 @@ using Game.Network;
 using Game.Network.Packets;
 using System;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 using System.Linq;
 
 namespace Game.PvP
@@ -297,9 +296,9 @@ namespace Game.PvP
         public void SetMapFromZone(uint zone)
         {
             AreaTableRecord areaTable = CliDB.AreaTableStorage.LookupByKey(zone);
-            Contract.Assert(areaTable != null);
+            Cypher.Assert(areaTable != null);
             Map map = Global.MapMgr.CreateBaseMap(areaTable.ContinentID);
-            Contract.Assert(!map.Instanceable());
+            Cypher.Assert(!map.Instanceable());
             m_map = map;
         }
 

Source/Game/Scripting/ScriptManager.cs

@@ -33,7 +33,6 @@ using Game.Spells;
 using System;
 using System.Collections;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 using System.IO;
 using System.Linq;
 using System.Reflection;
@@ -584,8 +583,8 @@ namespace Game.Scripting
         }
         public void OnGainCalculation(uint gain, Player player, Unit unit)
         {
-            Contract.Assert(player != null);
-            Contract.Assert(unit != null);
+            Cypher.Assert(player != null);
+            Cypher.Assert(unit != null);
 
             ForEach<FormulaScript>(p => p.OnGainCalculation(gain, player, unit));
         }
@@ -597,7 +596,7 @@ namespace Game.Scripting
         //MapScript
         public void OnCreateMap(Map map)
         {
-            Contract.Assert(map != null);
+            Cypher.Assert(map != null);
             var record = map.GetEntry();
 
             if (record != null && record.IsWorldMap())
@@ -611,7 +610,7 @@ namespace Game.Scripting
         }
         public void OnDestroyMap(Map map)
         {
-            Contract.Assert(map != null);
+            Cypher.Assert(map != null);
             var record = map.GetEntry();
 
             if (record != null && record.IsWorldMap())
@@ -625,8 +624,8 @@ namespace Game.Scripting
         }
         public void OnLoadGridMap(Map map, GridMap gmap, uint gx, uint gy)
         {
-            Contract.Assert(map != null);
-            Contract.Assert(gmap != null);
+            Cypher.Assert(map != null);
+            Cypher.Assert(gmap != null);
             var record = map.GetEntry();
 
             if (record != null && record.IsWorldMap())
@@ -641,8 +640,8 @@ namespace Game.Scripting
         }
         public void OnUnloadGridMap(Map map, GridMap gmap, uint gx, uint gy)
         {
-            Contract.Assert(map != null);
-            Contract.Assert(gmap != null);
+            Cypher.Assert(map != null);
+            Cypher.Assert(gmap != null);
             var record = map.GetEntry();
 
             if (record != null && record.IsWorldMap())
@@ -656,8 +655,8 @@ namespace Game.Scripting
         }
         public void OnPlayerEnterMap(Map map, Player player)
         {
-            Contract.Assert(map != null);
-            Contract.Assert(player != null);
+            Cypher.Assert(map != null);
+            Cypher.Assert(player != null);
 
             ForEach<PlayerScript>(p => p.OnMapChanged(player));
 
@@ -674,7 +673,7 @@ namespace Game.Scripting
         }
         public void OnPlayerLeaveMap(Map map, Player player)
         {
-            Contract.Assert(map != null);
+            Cypher.Assert(map != null);
             var record = map.GetEntry();
 
             if (record != null && record.IsWorldMap())
@@ -688,7 +687,7 @@ namespace Game.Scripting
         }
         public void OnMapUpdate(Map map, uint diff)
         {
-            Contract.Assert(map != null);
+            Cypher.Assert(map != null);
             var record = map.GetEntry();
 
             if (record != null && record.IsWorldMap())
@@ -704,7 +703,7 @@ namespace Game.Scripting
         //InstanceMapScript
         public InstanceScript CreateInstanceData(InstanceMap map)
         {
-            Contract.Assert(map != null);
+            Cypher.Assert(map != null);
 
             return RunScriptRet<InstanceMapScript, InstanceScript>(p => p.GetInstanceScript(map), map.GetScriptId(), null);
         }
@@ -712,30 +711,30 @@ namespace Game.Scripting
         //ItemScript
         public bool OnDummyEffect(Unit caster, uint spellId, uint effIndex, Item target)
         {
-            Contract.Assert(caster != null);
-            Contract.Assert(target != null);
+            Cypher.Assert(caster != null);
+            Cypher.Assert(target != null);
 
             return RunScriptRet<ItemScript>(p => p.OnDummyEffect(caster, spellId, effIndex, target), target.GetScriptId());
         }
         public bool OnQuestAccept(Player player, Item item, Quest quest)
         {
-            Contract.Assert(player != null);
-            Contract.Assert(item != null);
-            Contract.Assert(quest != null);
+            Cypher.Assert(player != null);
+            Cypher.Assert(item != null);
+            Cypher.Assert(quest != null);
 
             return RunScriptRet<ItemScript>(p => p.OnQuestAccept(player, item, quest), item.GetScriptId());
         }
         public bool OnItemUse(Player player, Item item, SpellCastTargets targets, ObjectGuid castId)
         {
-            Contract.Assert(player);
-            Contract.Assert(item);
+            Cypher.Assert(player);
+            Cypher.Assert(item);
 
             return RunScriptRet<ItemScript>(p => p.OnUse(player, item, targets, castId), item.GetScriptId());
         }
         public bool OnItemExpire(Player player, ItemTemplate proto)
         {
-            Contract.Assert(player);
-            Contract.Assert(proto != null);
+            Cypher.Assert(player);
+            Cypher.Assert(proto != null);
 
             return RunScriptRet<ItemScript>(p => p.OnExpire(player, proto), proto.ScriptId);
         }
@@ -743,76 +742,76 @@ namespace Game.Scripting
         //CreatureScript
         public bool OnDummyEffect(Unit caster, uint spellId, uint effIndex, Creature target)
         {
-            Contract.Assert(caster);
-            Contract.Assert(target);
+            Cypher.Assert(caster);
+            Cypher.Assert(target);
 
             return RunScriptRet<CreatureScript>(p => p.OnDummyEffect(caster, spellId, effIndex, target), target.GetScriptId());
         }
         public bool OnGossipHello(Player player, Creature creature)
         {
-            Contract.Assert(player);
-            Contract.Assert(creature);
+            Cypher.Assert(player);
+            Cypher.Assert(creature);
 
             return RunScriptRet<CreatureScript>(p => p.OnGossipHello(player, creature), creature.GetScriptId());
         }
         public bool OnGossipSelect(Player player, Creature creature, uint sender, uint action)
         {
-            Contract.Assert(player != null);
-            Contract.Assert(creature != null);
+            Cypher.Assert(player != null);
+            Cypher.Assert(creature != null);
 
             return RunScriptRet<CreatureScript>(p => p.OnGossipSelect(player, creature, sender, action), creature.GetScriptId());
         }
         public bool OnGossipSelectCode(Player player, Creature creature, uint sender, uint action, string code)
         {
-            Contract.Assert(player != null);
-            Contract.Assert(creature != null);
-            Contract.Assert(code != null);
+            Cypher.Assert(player != null);
+            Cypher.Assert(creature != null);
+            Cypher.Assert(code != null);
 
             return RunScriptRet<CreatureScript>(p => p.OnGossipSelectCode(player, creature, sender, action, code), creature.GetScriptId());
         }
         public bool OnQuestAccept(Player player, Creature creature, Quest quest)
         {
-            Contract.Assert(player != null);
-            Contract.Assert(creature != null);
-            Contract.Assert(quest != null);
+            Cypher.Assert(player != null);
+            Cypher.Assert(creature != null);
+            Cypher.Assert(quest != null);
 
             return RunScriptRet<CreatureScript>(p => p.OnQuestAccept(player, creature, quest), creature.GetScriptId());
         }
         public bool OnQuestSelect(Player player, Creature creature, Quest quest)
         {
-            Contract.Assert(player != null);
-            Contract.Assert(creature != null);
-            Contract.Assert(quest != null);
+            Cypher.Assert(player != null);
+            Cypher.Assert(creature != null);
+            Cypher.Assert(quest != null);
 
             return RunScriptRet<CreatureScript>(p => p.OnQuestSelect(player, creature, quest), creature.GetScriptId());
         }
         public bool OnQuestComplete(Player player, Creature creature, Quest quest)
         {
-            Contract.Assert(player != null);
-            Contract.Assert(creature != null);
-            Contract.Assert(quest != null);
+            Cypher.Assert(player != null);
+            Cypher.Assert(creature != null);
+            Cypher.Assert(quest != null);
 
             return RunScriptRet<CreatureScript>(p => p.OnQuestComplete(player, creature, quest), creature.GetScriptId());
         }
         public bool OnQuestReward(Player player, Creature creature, Quest quest, uint opt)
         {
-            Contract.Assert(player != null);
-            Contract.Assert(creature != null);
-            Contract.Assert(quest != null);
+            Cypher.Assert(player != null);
+            Cypher.Assert(creature != null);
+            Cypher.Assert(quest != null);
 
             return RunScriptRet<CreatureScript>(p => p.OnQuestReward(player, creature, quest, opt), creature.GetScriptId());
         }
         public uint GetDialogStatus(Player player, Creature creature)
         {
-            Contract.Assert(player != null);
-            Contract.Assert(creature != null);
+            Cypher.Assert(player != null);
+            Cypher.Assert(creature != null);
 
             player.PlayerTalkClass.ClearMenus();
             return RunScriptRet<CreatureScript, uint>(p => p.GetDialogStatus(player, creature), creature.GetScriptId(), (uint)QuestGiverStatus.ScriptedNoStatus);
         }
         public bool CanSpawn(ulong spawnId, uint entry, CreatureTemplate actTemplate, CreatureData cData, Map map)
         {
-            Contract.Assert(actTemplate != null);
+            Cypher.Assert(actTemplate != null);
 
             CreatureTemplate baseTemplate = Global.ObjectMgr.GetCreatureTemplate(entry);
             if (baseTemplate == null)
@@ -821,13 +820,13 @@ namespace Game.Scripting
         }
         public CreatureAI GetCreatureAI(Creature creature)
         {
-            Contract.Assert(creature != null);
+            Cypher.Assert(creature != null);
 
             return RunScriptRet<CreatureScript, CreatureAI>(p => p.GetAI(creature), creature.GetScriptId());
         }
         public void OnCreatureUpdate(Creature creature, uint diff)
         {
-            Contract.Assert(creature != null);
+            Cypher.Assert(creature != null);
 
             RunScript<CreatureScript>(p => p.OnUpdate(creature, diff), creature.GetScriptId());
         }
@@ -835,90 +834,90 @@ namespace Game.Scripting
         //GameObjectScript
         public bool OnDummyEffect(Unit caster, uint spellId, uint effIndex, GameObject target)
         {
-            Contract.Assert(caster != null);
-            Contract.Assert(target != null);
+            Cypher.Assert(caster != null);
+            Cypher.Assert(target != null);
 
             return RunScriptRet<GameObjectScript>(p => p.OnDummyEffect(caster, spellId, effIndex, target), target.GetScriptId());
         }
         public bool OnGossipHello(Player player, GameObject go)
         {
-            Contract.Assert(player != null);
-            Contract.Assert(go != null);
+            Cypher.Assert(player != null);
+            Cypher.Assert(go != null);
 
             player.PlayerTalkClass.ClearMenus();
             return RunScriptRet<GameObjectScript>(p => p.OnGossipHello(player, go), go.GetScriptId());
         }
         public bool OnGossipSelect(Player player, GameObject go, uint sender, uint action)
         {
-            Contract.Assert(player != null);
-            Contract.Assert(go != null);
+            Cypher.Assert(player != null);
+            Cypher.Assert(go != null);
 
             return RunScriptRet<GameObjectScript>(p => p.OnGossipSelect(player, go, sender, action), go.GetScriptId());
         }
         public bool OnGossipSelectCode(Player player, GameObject go, uint sender, uint action, string code)
         {
-            Contract.Assert(player != null);
-            Contract.Assert(go != null);
-            Contract.Assert(code != null);
+            Cypher.Assert(player != null);
+            Cypher.Assert(go != null);
+            Cypher.Assert(code != null);
 
             return RunScriptRet<GameObjectScript>(p => p.OnGossipSelectCode(player, go, sender, action, code), go.GetScriptId());
         }
         public bool OnQuestAccept(Player player, GameObject go, Quest quest)
         {
-            Contract.Assert(player != null);
-            Contract.Assert(go != null);
-            Contract.Assert(quest != null);
+            Cypher.Assert(player != null);
+            Cypher.Assert(go != null);
+            Cypher.Assert(quest != null);
 
             return RunScriptRet<GameObjectScript>(p => p.OnQuestAccept(player, go, quest), go.GetScriptId());
         }
         public bool OnQuestReward(Player player, GameObject go, Quest quest, uint opt)
         {
-            Contract.Assert(player != null);
-            Contract.Assert(go != null);
-            Contract.Assert(quest != null);
+            Cypher.Assert(player != null);
+            Cypher.Assert(go != null);
+            Cypher.Assert(quest != null);
 
             return RunScriptRet<GameObjectScript>(p => p.OnQuestReward(player, go, quest, opt), go.GetScriptId());
         }
         public uint GetDialogStatus(Player player, GameObject go)
         {
-            Contract.Assert(player != null);
-            Contract.Assert(go != null);
+            Cypher.Assert(player != null);
+            Cypher.Assert(go != null);
 
             return RunScriptRet<GameObjectScript, uint>(p => p.GetDialogStatus(player, go), go.GetScriptId(), (uint)QuestGiverStatus.ScriptedNoStatus);
         }
         public void OnGameObjectDestroyed(GameObject go, Player player)
         {
-            Contract.Assert(go != null);
+            Cypher.Assert(go != null);
 
             RunScript<GameObjectScript>(p => p.OnDestroyed(go, player), go.GetScriptId());
         }
         public void OnGameObjectDamaged(GameObject go, Player player)
         {
-            Contract.Assert(go != null);
+            Cypher.Assert(go != null);
 
             RunScript<GameObjectScript>(p => p.OnDamaged(go, player), go.GetScriptId());
         }
         public void OnGameObjectLootStateChanged(GameObject go, uint state, Unit unit)
         {
-            Contract.Assert(go != null);
+            Cypher.Assert(go != null);
 
             RunScript<GameObjectScript>(p => p.OnLootStateChanged(go, state, unit), go.GetScriptId());
         }
         public void OnGameObjectStateChanged(GameObject go, GameObjectState state)
         {
-            Contract.Assert(go != null);
+            Cypher.Assert(go != null);
 
             RunScript<GameObjectScript>(p => p.OnGameObjectStateChanged(go, state), go.GetScriptId());
         }
         public void OnGameObjectUpdate(GameObject go, uint diff)
         {
-            Contract.Assert(go != null);
+            Cypher.Assert(go != null);
 
             RunScript<GameObjectScript>(p => p.OnUpdate(go, diff), go.GetScriptId());
         }
         public GameObjectAI GetGameObjectAI(GameObject go)
         {
-            Contract.Assert(go != null);
+            Cypher.Assert(go != null);
 
             return RunScriptRet<GameObjectScript, GameObjectAI>(p => p.GetAI(go), go.GetScriptId());
         }
@@ -926,8 +925,8 @@ namespace Game.Scripting
         //AreaTriggerScript
         public bool OnAreaTrigger(Player player, AreaTriggerRecord trigger, bool entered)
         {
-            Contract.Assert(player != null);
-            Contract.Assert(trigger != null);
+            Cypher.Assert(player != null);
+            Cypher.Assert(trigger != null);
 
             return RunScriptRet<AreaTriggerScript>(p => p.OnTrigger(player, trigger, entered), Global.ObjectMgr.GetAreaTriggerScriptId(trigger.Id));
         }
@@ -936,59 +935,59 @@ namespace Game.Scripting
         public Battleground CreateBattleground(BattlegroundTypeId typeId)
         {
             // @todo Implement script-side Battlegrounds.
-            Contract.Assert(false);
+            Cypher.Assert(false);
             return null;
         }
 
         // OutdoorPvPScript
         public OutdoorPvP CreateOutdoorPvP(OutdoorPvPData data)
         {
-            Contract.Assert(data != null);
+            Cypher.Assert(data != null);
             return RunScriptRet<OutdoorPvPScript, OutdoorPvP>(p => p.GetOutdoorPvP(), data.ScriptId, null);
         }
 
         // WeatherScript
         public void OnWeatherChange(Weather weather, WeatherState state, float grade)
         {
-            Contract.Assert(weather != null);
+            Cypher.Assert(weather != null);
             RunScript<WeatherScript>(p => p.OnChange(weather, state, grade), weather.GetScriptId());
         }
         public void OnWeatherUpdate(Weather weather, uint diff)
         {
-            Contract.Assert(weather != null);
+            Cypher.Assert(weather != null);
             RunScript<WeatherScript>(p => p.OnUpdate(weather, diff), weather.GetScriptId());
         }
 
         // AuctionHouseScript
         public void OnAuctionAdd(AuctionHouseObject ah, AuctionEntry entry)
         {
-            Contract.Assert(ah != null);
-            Contract.Assert(entry != null);
+            Cypher.Assert(ah != null);
+            Cypher.Assert(entry != null);
             ForEach<AuctionHouseScript>(p => p.OnAuctionAdd(ah, entry));
         }
         public void OnAuctionRemove(AuctionHouseObject ah, AuctionEntry entry)
         {
-            Contract.Assert(ah != null);
-            Contract.Assert(entry != null);
+            Cypher.Assert(ah != null);
+            Cypher.Assert(entry != null);
             ForEach<AuctionHouseScript>(p => p.OnAuctionRemove(ah, entry));
         }
         public void OnAuctionSuccessful(AuctionHouseObject ah, AuctionEntry entry)
         {
-            Contract.Assert(ah != null);
-            Contract.Assert(entry != null);
+            Cypher.Assert(ah != null);
+            Cypher.Assert(entry != null);
             ForEach<AuctionHouseScript>(p => p.OnAuctionSuccessful(ah, entry));
         }
         public void OnAuctionExpire(AuctionHouseObject ah, AuctionEntry entry)
         {
-            Contract.Assert(ah != null);
-            Contract.Assert(entry != null);
+            Cypher.Assert(ah != null);
+            Cypher.Assert(entry != null);
             ForEach<AuctionHouseScript>(p => p.OnAuctionExpire(ah, entry));
         }
 
         // ConditionScript
         public bool OnConditionCheck(Condition condition, ConditionSourceInfo sourceInfo)
         {
-            Contract.Assert(condition != null);
+            Cypher.Assert(condition != null);
 
             return RunScriptRet<ConditionScript>(p => p.OnConditionCheck(condition, sourceInfo), condition.ScriptId, true);
         }
@@ -996,46 +995,46 @@ namespace Game.Scripting
         // VehicleScript
         public void OnInstall(Vehicle veh)
         {
-            Contract.Assert(veh != null);
-            Contract.Assert(veh.GetBase().IsTypeId(TypeId.Unit));
+            Cypher.Assert(veh != null);
+            Cypher.Assert(veh.GetBase().IsTypeId(TypeId.Unit));
 
             RunScript<VehicleScript>(p => p.OnInstall(veh), veh.GetBase().ToCreature().GetScriptId());
         }
         public void OnUninstall(Vehicle veh)
         {
-            Contract.Assert(veh != null);
-            Contract.Assert(veh.GetBase().IsTypeId(TypeId.Unit));
+            Cypher.Assert(veh != null);
+            Cypher.Assert(veh.GetBase().IsTypeId(TypeId.Unit));
 
             RunScript<VehicleScript>(p => p.OnUninstall(veh), veh.GetBase().ToCreature().GetScriptId());
         }
         public void OnReset(Vehicle veh)
         {
-            Contract.Assert(veh != null);
-            Contract.Assert(veh.GetBase().IsTypeId(TypeId.Unit));
+            Cypher.Assert(veh != null);
+            Cypher.Assert(veh.GetBase().IsTypeId(TypeId.Unit));
 
             RunScript<VehicleScript>(p => p.OnReset(veh), veh.GetBase().ToCreature().GetScriptId());
         }
         public void OnInstallAccessory(Vehicle veh, Creature accessory)
         {
-            Contract.Assert(veh != null);
-            Contract.Assert(veh.GetBase().IsTypeId(TypeId.Unit));
-            Contract.Assert(accessory != null);
+            Cypher.Assert(veh != null);
+            Cypher.Assert(veh.GetBase().IsTypeId(TypeId.Unit));
+            Cypher.Assert(accessory != null);
 
             RunScript<VehicleScript>(p => p.OnInstallAccessory(veh, accessory), veh.GetBase().ToCreature().GetScriptId());
         }
         public void OnAddPassenger(Vehicle veh, Unit passenger, sbyte seatId)
         {
-            Contract.Assert(veh != null);
-            Contract.Assert(veh.GetBase().IsTypeId(TypeId.Unit));
-            Contract.Assert(passenger != null);
+            Cypher.Assert(veh != null);
+            Cypher.Assert(veh.GetBase().IsTypeId(TypeId.Unit));
+            Cypher.Assert(passenger != null);
 
             RunScript<VehicleScript>(p => p.OnAddPassenger(veh, passenger, seatId), veh.GetBase().ToCreature().GetScriptId());
         }
         public void OnRemovePassenger(Vehicle veh, Unit passenger)
         {
-            Contract.Assert(veh != null);
-            Contract.Assert(veh.GetBase().IsTypeId(TypeId.Unit));
-            Contract.Assert(passenger != null);
+            Cypher.Assert(veh != null);
+            Cypher.Assert(veh.GetBase().IsTypeId(TypeId.Unit));
+            Cypher.Assert(passenger != null);
 
             RunScript<VehicleScript>(p => p.OnRemovePassenger(veh, passenger), veh.GetBase().ToCreature().GetScriptId());
         }
@@ -1043,7 +1042,7 @@ namespace Game.Scripting
         // DynamicObjectScript
         public void OnDynamicObjectUpdate(DynamicObject dynobj, uint diff)
         {
-            Contract.Assert(dynobj != null);
+            Cypher.Assert(dynobj != null);
 
             ForEach<DynamicObjectScript>(p => p.OnUpdate(dynobj, diff));
         }
@@ -1051,28 +1050,28 @@ namespace Game.Scripting
         // TransportScript
         public void OnAddPassenger(Transport transport, Player player)
         {
-            Contract.Assert(transport != null);
-            Contract.Assert(player != null);
+            Cypher.Assert(transport != null);
+            Cypher.Assert(player != null);
 
             RunScript<TransportScript>(p => p.OnAddPassenger(transport, player), transport.GetScriptId());
         }
         public void OnAddCreaturePassenger(Transport transport, Creature creature)
         {
-            Contract.Assert(transport != null);
-            Contract.Assert(creature != null);
+            Cypher.Assert(transport != null);
+            Cypher.Assert(creature != null);
 
             RunScript<TransportScript>(p => p.OnAddCreaturePassenger(transport, creature), transport.GetScriptId());
         }
         public void OnRemovePassenger(Transport transport, Player player)
         {
-            Contract.Assert(transport != null);
-            Contract.Assert(player != null);
+            Cypher.Assert(transport != null);
+            Cypher.Assert(player != null);
 
             RunScript<TransportScript>(p => p.OnRemovePassenger(transport, player), transport.GetScriptId());
         }
         public void OnTransportUpdate(Transport transport, uint diff)
         {
-            Contract.Assert(transport != null);
+            Cypher.Assert(transport != null);
 
             RunScript<TransportScript>(p => p.OnUpdate(transport, diff), transport.GetScriptId());
         }
@@ -1084,7 +1083,7 @@ namespace Game.Scripting
         // AchievementCriteriaScript
         public bool OnCriteriaCheck(uint ScriptId, Player source, Unit target)
         {
-            Contract.Assert(source != null);
+            Cypher.Assert(source != null);
             // target can be NULL.
 
             return RunScriptRet<AchievementCriteriaScript>(p => p.OnCheck(source, target), ScriptId);
@@ -1261,27 +1260,27 @@ namespace Game.Scripting
         // GroupScript
         public void OnGroupAddMember(Group group, ObjectGuid guid)
         {
-            Contract.Assert(group);
+            Cypher.Assert(group);
             ForEach<GroupScript>(p => p.OnAddMember(group, guid));
         }
         public void OnGroupInviteMember(Group group, ObjectGuid guid)
         {
-            Contract.Assert(group);
+            Cypher.Assert(group);
             ForEach<GroupScript>(p => p.OnInviteMember(group, guid));
         }
         public void OnGroupRemoveMember(Group group, ObjectGuid guid, RemoveMethod method, ObjectGuid kicker, string reason)
         {
-            Contract.Assert(group);
+            Cypher.Assert(group);
             ForEach<GroupScript>(p => p.OnRemoveMember(group, guid, method, kicker, reason));
         }
         public void OnGroupChangeLeader(Group group, ObjectGuid newLeaderGuid, ObjectGuid oldLeaderGuid)
         {
-            Contract.Assert(group);
+            Cypher.Assert(group);
             ForEach<GroupScript>(p => p.OnChangeLeader(group, newLeaderGuid, oldLeaderGuid));
         }
         public void OnGroupDisband(Group group)
         {
-            Contract.Assert(group);
+            Cypher.Assert(group);
             ForEach<GroupScript>(p => p.OnDisband(group));
         }
 
@@ -1320,7 +1319,7 @@ namespace Game.Scripting
         // AreaTriggerEntityScript
         public AreaTriggerAI GetAreaTriggerAI(AreaTrigger areaTrigger)
         {
-            Contract.Assert(areaTrigger);
+            Cypher.Assert(areaTrigger);
 
             return RunScriptRet<AreaTriggerEntityScript, AreaTriggerAI>(p => p.GetAI(areaTrigger), areaTrigger.GetScriptId(), null);
         }
@@ -1328,7 +1327,7 @@ namespace Game.Scripting
         // ConversationScript
         public void OnConversationCreate(Conversation conversation, Unit creator)
         {
-            Contract.Assert(conversation != null);
+            Cypher.Assert(conversation != null);
 
             RunScript<ConversationScript>(script => script.OnConversationCreate(conversation, creator), conversation.GetScriptId());
         }
@@ -1336,29 +1335,29 @@ namespace Game.Scripting
         //SceneScript
         public void OnSceneStart(Player player, uint sceneInstanceID, SceneTemplate sceneTemplate)
         {
-            Contract.Assert(player);
-            Contract.Assert(sceneTemplate != null);
+            Cypher.Assert(player);
+            Cypher.Assert(sceneTemplate != null);
 
             RunScript<SceneScript>(script => script.OnSceneStart(player, sceneInstanceID, sceneTemplate), sceneTemplate.ScriptId);
         }
         public void OnSceneTrigger(Player player, uint sceneInstanceID, SceneTemplate sceneTemplate, string triggerName)
         {
-            Contract.Assert(player);
-            Contract.Assert(sceneTemplate != null);
+            Cypher.Assert(player);
+            Cypher.Assert(sceneTemplate != null);
 
             RunScript<SceneScript>(script => script.OnSceneTriggerEvent(player, sceneInstanceID, sceneTemplate, triggerName), sceneTemplate.ScriptId);
         }
         public void OnSceneCancel(Player player, uint sceneInstanceID, SceneTemplate sceneTemplate)
         {
-            Contract.Assert(player);
-            Contract.Assert(sceneTemplate != null);
+            Cypher.Assert(player);
+            Cypher.Assert(sceneTemplate != null);
 
             RunScript<SceneScript>(script => script.OnSceneCancel(player, sceneInstanceID, sceneTemplate), sceneTemplate.ScriptId);
         }
         public void OnSceneComplete(Player player, uint sceneInstanceID, SceneTemplate sceneTemplate)
         {
-            Contract.Assert(player);
-            Contract.Assert(sceneTemplate != null);
+            Cypher.Assert(player);
+            Cypher.Assert(sceneTemplate != null);
 
             RunScript<SceneScript>(script => script.OnSceneComplete(player, sceneInstanceID, sceneTemplate), sceneTemplate.ScriptId);
         }
@@ -1366,15 +1365,15 @@ namespace Game.Scripting
         //QuestScript
         public void OnQuestStatusChange(Player player, Quest quest, QuestStatus oldStatus, QuestStatus newStatus)
         {
-            Contract.Assert(player);
-            Contract.Assert(quest != null);
+            Cypher.Assert(player);
+            Cypher.Assert(quest != null);
 
             RunScript<QuestScript>(script => script.OnQuestStatusChange(player, quest, oldStatus, newStatus), quest.ScriptId);
         }
         public void OnQuestObjectiveChange(Player player, Quest quest, QuestObjective objective, int oldAmount, int newAmount)
         {
-            Contract.Assert(player);
-            Contract.Assert(quest != null);
+            Cypher.Assert(player);
+            Cypher.Assert(quest != null);
 
             RunScript<QuestScript>(script => script.OnQuestObjectiveChange(player, quest, objective, oldAmount, newAmount), quest.ScriptId);
         }
@@ -1416,7 +1415,7 @@ namespace Game.Scripting
         }
         public void AddScript<T>(T script) where T : ScriptObject
         {
-            Contract.Assert(script != null);
+            Cypher.Assert(script != null);
 
             if (!ScriptStorage.ContainsKey(typeof(T)))
                 ScriptStorage[typeof(T)] = new ScriptRegistry<T>();
@@ -1456,7 +1455,7 @@ namespace Game.Scripting
     {
         public void AddScript(TValue script)
         {
-            Contract.Assert(script != null);
+            Cypher.Assert(script != null);
 
             if (!script.IsDatabaseBound())
             {
@@ -1493,7 +1492,7 @@ namespace Game.Scripting
                     // If the script is already assigned . delete it!
                     Log.outError(LogFilter.Scripts, "Script '{0}' already assigned with the same script name, so the script can't work.", script.GetName());
 
-                    Contract.Assert(false); // Error that should be fixed ASAP.
+                    Cypher.Assert(false); // Error that should be fixed ASAP.
                 }
             }
             else

Source/Game/Server/WorldManager.cs

@@ -31,7 +31,6 @@ using Game.Spells;
 using System;
 using System.Collections.Concurrent;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 using System.Linq;
 
 namespace Game
@@ -124,7 +123,7 @@ namespace Game
 
         void AddSession_(WorldSession s)
         {
-            Contract.Assert(s != null);
+            Cypher.Assert(s != null);
 
             //NOTE - Still there is race condition in WorldSession* being used in the Sockets
 

Source/Game/Spells/Auras/Aura.cs

@@ -24,7 +24,6 @@ using Game.Network.Packets;
 using Game.Scripting;
 using System;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 using System.Linq;
 
 namespace Game.Spells
@@ -75,7 +74,7 @@ namespace Game.Spells
             _effectsToApply = effMask;
             _needClientUpdate = false;
 
-            Contract.Assert(GetTarget() != null && GetBase() != null);
+            Cypher.Assert(GetTarget() != null && GetBase() != null);
 
             // Try find slot for aura
             byte slot = 0;
@@ -165,20 +164,20 @@ namespace Game.Spells
                 Log.outError(LogFilter.Spells, "Aura {0} has no effect at effectIndex {1} but _HandleEffect was called", GetBase().GetSpellInfo().Id, effIndex);
                 return;
             }
-            Contract.Assert(aurEff != null);
-            Contract.Assert(HasEffect(effIndex) == (!apply));
-            Contract.Assert(Convert.ToBoolean((1 << (int)effIndex) & _effectsToApply));
+            Cypher.Assert(aurEff != null);
+            Cypher.Assert(HasEffect(effIndex) == (!apply));
+            Cypher.Assert(Convert.ToBoolean((1 << (int)effIndex) & _effectsToApply));
             Log.outDebug(LogFilter.Spells, "AuraApplication._HandleEffect: {0}, apply: {1}: amount: {2}", aurEff.GetAuraType(), apply, aurEff.GetAmount());
 
             if (apply)
             {
-                Contract.Assert(!Convert.ToBoolean(_effectMask & (1 << (int)effIndex)));
+                Cypher.Assert(!Convert.ToBoolean(_effectMask & (1 << (int)effIndex)));
                 _effectMask |= (uint)(1 << (int)effIndex);
                 aurEff.HandleEffect(this, AuraEffectHandleModes.Real, true);
             }
             else
             {
-                Contract.Assert(Convert.ToBoolean(_effectMask & (1 << (int)effIndex)));
+                Cypher.Assert(Convert.ToBoolean(_effectMask & (1 << (int)effIndex)));
                 _effectMask &= ~(uint)(1 << (int)effIndex);
                 aurEff.HandleEffect(this, AuraEffectHandleModes.Real, false);
             }
@@ -196,7 +195,7 @@ namespace Game.Spells
 
         public void BuildUpdatePacket(ref AuraInfo auraInfo, bool remove)
         {
-            Contract.Assert(_target.HasVisibleAura(this) != remove);
+            Cypher.Assert(_target.HasVisibleAura(this) != remove);
 
             auraInfo.Slot = GetSlot();
             if (remove)
@@ -264,7 +263,7 @@ namespace Game.Spells
         public uint GetEffectMask() { return _effectMask; }
         public bool HasEffect(uint effect)
         {
-            Contract.Assert(effect < SpellConst.MaxEffects);
+            Cypher.Assert(effect < SpellConst.MaxEffects);
             return Convert.ToBoolean(_effectMask & (1 << (int)effect));
         }
         public bool IsPositive() { return _flags.HasAnyFlag(AuraFlags.Positive); }
@@ -363,10 +362,10 @@ namespace Game.Spells
 
         public virtual void _ApplyForTarget(Unit target, Unit caster, AuraApplication auraApp)
         {
-            Contract.Assert(target != null);
-            Contract.Assert(auraApp != null);
+            Cypher.Assert(target != null);
+            Cypher.Assert(auraApp != null);
             // aura mustn't be already applied on target
-            //Contract.Assert(!IsAppliedOnTarget(target.GetGUID()) && "Aura._ApplyForTarget: aura musn't be already applied on target");
+            //Cypher.Assert(!IsAppliedOnTarget(target.GetGUID()) && "Aura._ApplyForTarget: aura musn't be already applied on target");
 
             m_applications[target.GetGUID()] = auraApp;
 
@@ -382,9 +381,9 @@ namespace Game.Spells
         }
         public virtual void _UnapplyForTarget(Unit target, Unit caster, AuraApplication auraApp)
         {
-            Contract.Assert(target != null);
-            Contract.Assert(auraApp.HasRemoveMode());
-            Contract.Assert(auraApp != null);
+            Cypher.Assert(target != null);
+            Cypher.Assert(auraApp.HasRemoveMode());
+            Cypher.Assert(auraApp != null);
 
             var app = m_applications.LookupByKey(target.GetGUID());
 
@@ -393,11 +392,11 @@ namespace Game.Spells
             {
                 Log.outError(LogFilter.Spells, "Aura._UnapplyForTarget, target: {0}, caster: {1}, spell: {2} was not found in owners application map!",
                 target.GetGUID().ToString(), caster ? caster.GetGUID().ToString() : "", auraApp.GetBase().GetSpellInfo().Id);
-                Contract.Assert(false);
+                Cypher.Assert(false);
             }
 
             // aura has to be already applied
-            Contract.Assert(app == auraApp);
+            Cypher.Assert(app == auraApp);
             m_applications.Remove(target.GetGUID());
 
             m_removedApplications.Add(auraApp);
@@ -412,7 +411,7 @@ namespace Game.Spells
         // and marks aura as removed
         public void _Remove(AuraRemoveMode removeMode)
         {
-            Contract.Assert(!m_isRemoved);
+            Cypher.Assert(!m_isRemoved);
             m_isRemoved = true;
             foreach (var pair in m_applications.ToList())
             {
@@ -482,7 +481,7 @@ namespace Game.Spells
                     else
                     {
                         // ok, we have one unit twice in target map (impossible, but...)
-                        Contract.Assert(false);
+                        Cypher.Assert(false);
                     }
                 }
 
@@ -564,7 +563,7 @@ namespace Game.Spells
                 if (aurApp != null)
                 {
                     // owner has to be in world, or effect has to be applied to self
-                    Contract.Assert((!m_owner.IsInWorld && m_owner == pair.Key) || m_owner.IsInMap(pair.Key));
+                    Cypher.Assert((!m_owner.IsInWorld && m_owner == pair.Key) || m_owner.IsInMap(pair.Key));
                     pair.Key._ApplyAura(aurApp, pair.Value);
                 }
             }
@@ -587,7 +586,7 @@ namespace Game.Spells
                 if (GetApplicationOfTarget(unit.GetGUID()) != null)
                 {
                     // owner has to be in world, or effect has to be applied to self
-                    Contract.Assert((!GetOwner().IsInWorld && GetOwner() == unit) || GetOwner().IsInMap(unit));
+                    Cypher.Assert((!GetOwner().IsInWorld && GetOwner() == unit) || GetOwner().IsInMap(unit));
                     unit._ApplyAuraEffect(this, effIndex);
                 }
             }
@@ -595,7 +594,7 @@ namespace Game.Spells
 
         public void UpdateOwner(uint diff, WorldObject owner)
         {
-            Contract.Assert(owner == m_owner);
+            Cypher.Assert(owner == m_owner);
 
             Unit caster = GetCaster();
             // Apply spellmods for channeled auras
@@ -994,9 +993,9 @@ namespace Game.Spells
 
         public void UnregisterSingleTarget()
         {
-            Contract.Assert(m_isSingleTarget);
+            Cypher.Assert(m_isSingleTarget);
             Unit caster = GetCaster();
-            Contract.Assert(caster != null);
+            Cypher.Assert(caster != null);
             caster.GetSingleCastAuras().Remove(this);
             SetIsSingleTarget(false);
         }
@@ -1076,7 +1075,7 @@ namespace Game.Spells
 
         public void RecalculateAmountOfEffects()
         {
-            Contract.Assert(!IsRemoved());
+            Cypher.Assert(!IsRemoved());
             Unit caster = GetCaster();
             foreach (AuraEffect effect in GetAuraEffects())
                 if (effect != null && !IsRemoved())
@@ -1085,7 +1084,7 @@ namespace Game.Spells
 
         public void HandleAllEffects(AuraApplication aurApp, AuraEffectHandleModes mode, bool apply)
         {
-            Contract.Assert(!IsRemoved());
+            Cypher.Assert(!IsRemoved());
             foreach (AuraEffect effect in GetAuraEffects())
                 if (effect != null && !IsRemoved())
                     effect.HandleEffect(aurApp, mode, apply);
@@ -1625,7 +1624,7 @@ namespace Game.Spells
 
             SpellProcEntry procEntry = Global.SpellMgr.GetSpellProcEntry(GetId());
 
-            Contract.Assert(procEntry != null);
+            Cypher.Assert(procEntry != null);
 
             // cooldowns should be added to the whole aura (see 51698 area aura)
             AddProcCooldown(now + TimeSpan.FromMilliseconds(procEntry.Cooldown));
@@ -2227,12 +2226,12 @@ namespace Game.Spells
         public WorldObject GetOwner() { return m_owner; }
         public Unit GetUnitOwner()
         {
-            Contract.Assert(GetAuraType() == AuraObjectType.Unit);
+            Cypher.Assert(GetAuraType() == AuraObjectType.Unit);
             return m_owner.ToUnit();
         }
         public DynamicObject GetDynobjOwner()
         {
-            Contract.Assert(GetAuraType() == AuraObjectType.DynObj);
+            Cypher.Assert(GetAuraType() == AuraObjectType.DynObj);
             return m_owner.ToDynamicObject();
         }
 
@@ -2345,8 +2344,8 @@ namespace Game.Spells
         //Static Methods
         public static uint BuildEffectMaskForOwner(SpellInfo spellProto, uint availableEffectMask, WorldObject owner)
         {
-            Contract.Assert(spellProto != null);
-            Contract.Assert(owner != null);
+            Cypher.Assert(spellProto != null);
+            Cypher.Assert(owner != null);
             uint effMask = 0;
             switch (owner.GetTypeId())
             {
@@ -2377,10 +2376,10 @@ namespace Game.Spells
         }
         public static Aura TryRefreshStackOrCreate(SpellInfo spellproto, ObjectGuid castId, uint tryEffMask, WorldObject owner, Unit caster, out bool refresh, int[] baseAmount, Item castItem = null, ObjectGuid casterGUID = default(ObjectGuid), bool resetPeriodicTimer = true, ObjectGuid castItemGuid = default(ObjectGuid), int castItemLevel = -1)
         {
-            Contract.Assert(spellproto != null);
-            Contract.Assert(owner != null);
-            Contract.Assert(caster || !casterGUID.IsEmpty());
-            Contract.Assert(tryEffMask <= SpellConst.MaxEffectMask);
+            Cypher.Assert(spellproto != null);
+            Cypher.Assert(owner != null);
+            Cypher.Assert(caster || !casterGUID.IsEmpty());
+            Cypher.Assert(tryEffMask <= SpellConst.MaxEffectMask);
             refresh = false;
 
             uint effMask = BuildEffectMaskForOwner(spellproto, tryEffMask, owner);
@@ -2402,10 +2401,10 @@ namespace Game.Spells
         }
         public static Aura TryCreate(SpellInfo spellproto, ObjectGuid castId, uint tryEffMask, WorldObject owner, Unit caster, int[] baseAmount, Item castItem = null, ObjectGuid casterGUID = default(ObjectGuid), ObjectGuid castItemGuid = default(ObjectGuid), int castItemLevel = -1)
         {
-            Contract.Assert(spellproto != null);
-            Contract.Assert(owner != null);
-            Contract.Assert(caster != null || !casterGUID.IsEmpty());
-            Contract.Assert(tryEffMask <= SpellConst.MaxEffectMask);
+            Cypher.Assert(spellproto != null);
+            Cypher.Assert(owner != null);
+            Cypher.Assert(caster != null || !casterGUID.IsEmpty());
+            Cypher.Assert(tryEffMask <= SpellConst.MaxEffectMask);
             uint effMask = BuildEffectMaskForOwner(spellproto, tryEffMask, owner);
             if (effMask == 0)
                 return null;
@@ -2413,11 +2412,11 @@ namespace Game.Spells
         }
         public static Aura Create(SpellInfo spellproto, ObjectGuid castId, uint effMask, WorldObject owner, Unit caster, int[] baseAmount, Item castItem, ObjectGuid casterGUID, ObjectGuid castItemGuid, int castItemLevel)
         {
-            Contract.Assert(effMask != 0);
-            Contract.Assert(spellproto != null);
-            Contract.Assert(owner != null);
-            Contract.Assert(caster != null || !casterGUID.IsEmpty());
-            Contract.Assert(effMask <= SpellConst.MaxEffectMask);
+            Cypher.Assert(effMask != 0);
+            Cypher.Assert(spellproto != null);
+            Cypher.Assert(owner != null);
+            Cypher.Assert(caster != null || !casterGUID.IsEmpty());
+            Cypher.Assert(effMask <= SpellConst.MaxEffectMask);
             // try to get caster of aura
             if (!casterGUID.IsEmpty())
             {
@@ -2447,7 +2446,7 @@ namespace Game.Spells
                     aura = new DynObjAura(spellproto, castId, effMask, owner, caster, baseAmount, castItem, casterGUID, castItemGuid, castItemLevel);
                     break;
                 default:
-                    Contract.Assert(false);
+                    Cypher.Assert(false);
                     return null;
             }
             // aura can be removed in Unit:_AddAura call
@@ -2613,9 +2612,9 @@ namespace Game.Spells
             : base(spellproto, castId, owner, caster, castItem, casterGUID, castItemGuid, castItemLevel)
         {
             LoadScripts();
-            Contract.Assert(GetDynobjOwner() != null);
-            Contract.Assert(GetDynobjOwner().IsInWorld);
-            Contract.Assert(GetDynobjOwner().GetMap() == caster.GetMap());
+            Cypher.Assert(GetDynobjOwner() != null);
+            Cypher.Assert(GetDynobjOwner().IsInWorld);
+            Cypher.Assert(GetDynobjOwner().GetMap() == caster.GetMap());
             _InitEffects(effMask, caster, baseAmount);
             GetDynobjOwner().SetAura(this);
 

Source/Game/Spells/Auras/AuraEffect.cs

@@ -26,7 +26,6 @@ using Game.Maps;
 using Game.Network.Packets;
 using System;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 using System.Linq;
 
 namespace Game.Spells
@@ -305,7 +304,7 @@ namespace Game.Spells
         public void HandleEffect(AuraApplication aurApp, AuraEffectHandleModes mode, bool apply)
         {
             // check if call is correct, we really don't want using bitmasks here (with 1 exception)
-            Contract.Assert(mode == AuraEffectHandleModes.Real || mode == AuraEffectHandleModes.SendForClient
+            Cypher.Assert(mode == AuraEffectHandleModes.Real || mode == AuraEffectHandleModes.SendForClient
                 || mode == AuraEffectHandleModes.ChangeAmount || mode == AuraEffectHandleModes.Stat
                 || mode == AuraEffectHandleModes.Skill || mode == AuraEffectHandleModes.Reapply
                 || mode == (AuraEffectHandleModes.ChangeAmount | AuraEffectHandleModes.Reapply));
@@ -345,7 +344,7 @@ namespace Game.Spells
         public void HandleEffect(Unit target, AuraEffectHandleModes mode, bool apply)
         {
             AuraApplication aurApp = GetBase().GetApplicationOfTarget(target.GetGUID());
-            Contract.Assert(aurApp != null);
+            Cypher.Assert(aurApp != null);
             HandleEffect(aurApp, mode, apply);
         }
 
@@ -578,7 +577,7 @@ namespace Game.Spells
 
         bool CanPeriodicTickCrit(Unit caster)
         {
-            Contract.Assert(caster);
+            Cypher.Assert(caster);
 
             return caster.HasAuraTypeWithAffectMask(AuraType.AbilityPeriodicCrit, m_spellInfo);
         }

Source/Game/Spells/Spell.cs

@@ -29,7 +29,6 @@ using Game.Network.Packets;
 using Game.Scripting;
 using System;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 using System.Linq;
 using System.Runtime.InteropServices;
 using Game.AI;
@@ -124,7 +123,7 @@ namespace Game.Spells
             }
 
             if (m_caster && m_caster.GetTypeId() == TypeId.Player)
-                Contract.Assert(m_caster.ToPlayer().m_spellModTakingSpell != this);
+                Cypher.Assert(m_caster.ToPlayer().m_spellModTakingSpell != this);
         }
 
         void InitExplicitTargets(SpellCastTargets targets)
@@ -282,8 +281,9 @@ namespace Game.Spells
                 else if (m_auraScaleMask != 0)
                 {
                     bool checkLvl = !m_UniqueTargetInfo.Empty();
-                    foreach (var ihit in m_UniqueTargetInfo)
+                    for (var i = 0; i < m_UniqueTargetInfo.Count; ++i)
                     {
+                        var ihit = m_UniqueTargetInfo[i];
                         // remove targets which did not pass min level check
                         if (m_auraScaleMask != 0 && ihit.effectMask == m_auraScaleMask)
                         {
@@ -388,7 +388,7 @@ namespace Game.Spells
                                     m_targets.SetSrc(m_caster);
                                     break;
                                 default:
-                                    Contract.Assert(false, "Spell.SelectEffectImplicitTargets: received not implemented select target reference type for TARGET_TYPE_OBJECT_SRC");
+                                    Cypher.Assert(false, "Spell.SelectEffectImplicitTargets: received not implemented select target reference type for TARGET_TYPE_OBJECT_SRC");
                                     break;
                             }
                             break;
@@ -405,7 +405,7 @@ namespace Game.Spells
                                     SelectImplicitDestDestTargets(effIndex, targetType);
                                     break;
                                 default:
-                                    Contract.Assert(false, "Spell.SelectEffectImplicitTargets: received not implemented select target reference type for TARGET_TYPE_OBJECT_DEST");
+                                    Cypher.Assert(false, "Spell.SelectEffectImplicitTargets: received not implemented select target reference type for TARGET_TYPE_OBJECT_DEST");
                                     break;
                             }
                             break;
@@ -419,7 +419,7 @@ namespace Game.Spells
                                     SelectImplicitTargetObjectTargets(effIndex, targetType);
                                     break;
                                 default:
-                                    Contract.Assert(false, "Spell.SelectEffectImplicitTargets: received not implemented select target reference type for TARGET_TYPE_OBJECT");
+                                    Cypher.Assert(false, "Spell.SelectEffectImplicitTargets: received not implemented select target reference type for TARGET_TYPE_OBJECT");
                                     break;
                             }
                             break;
@@ -429,7 +429,7 @@ namespace Game.Spells
                     Log.outDebug(LogFilter.Spells, "SPELL: target type {0}, found in spellID {1}, effect {2} is not implemented yet!", m_spellInfo.Id, effIndex, targetType.GetTarget());
                     break;
                 default:
-                    Contract.Assert(false, "Spell.SelectEffectImplicitTargets: received not implemented select target category");
+                    Cypher.Assert(false, "Spell.SelectEffectImplicitTargets: received not implemented select target category");
                     break;
             }
         }
@@ -438,7 +438,7 @@ namespace Game.Spells
         {
             if (targetType.GetReferenceType() != SpellTargetReferenceTypes.Caster)
             {
-                Contract.Assert(false, "Spell.SelectImplicitChannelTargets: received not implemented target reference type");
+                Cypher.Assert(false, "Spell.SelectImplicitChannelTargets: received not implemented target reference type");
                 return;
             }
 
@@ -498,7 +498,7 @@ namespace Game.Spells
                         break;
                     }
                 default:
-                    Contract.Assert(false, "Spell.SelectImplicitChannelTargets: received not implemented target type");
+                    Cypher.Assert(false, "Spell.SelectImplicitChannelTargets: received not implemented target type");
                     break;
             }
         }
@@ -507,7 +507,7 @@ namespace Game.Spells
         {
             if (targetType.GetReferenceType() != SpellTargetReferenceTypes.Caster)
             {
-                Contract.Assert(false, "Spell.SelectImplicitNearbyTargets: received not implemented target reference type");
+                Cypher.Assert(false, "Spell.SelectImplicitNearbyTargets: received not implemented target reference type");
                 return;
             }
 
@@ -532,7 +532,7 @@ namespace Game.Spells
                     range = m_spellInfo.GetMaxRange(m_spellInfo.IsPositive(), m_caster, this);
                     break;
                 default:
-                    Contract.Assert(false, "Spell.SelectImplicitNearbyTargets: received not implemented selection check type");
+                    Cypher.Assert(false, "Spell.SelectImplicitNearbyTargets: received not implemented selection check type");
                     break;
             }
 
@@ -629,7 +629,7 @@ namespace Game.Spells
                     m_targets.SetDst(dest);
                     break;
                 default:
-                    Contract.Assert(false, "Spell.SelectImplicitNearbyTargets: received not implemented target object type");
+                    Cypher.Assert(false, "Spell.SelectImplicitNearbyTargets: received not implemented target object type");
                     break;
             }
 
@@ -640,7 +640,7 @@ namespace Game.Spells
         {
             if (targetType.GetReferenceType() != SpellTargetReferenceTypes.Caster)
             {
-                Contract.Assert(false, "Spell.SelectImplicitConeTargets: received not implemented target reference type");
+                Cypher.Assert(false, "Spell.SelectImplicitConeTargets: received not implemented target reference type");
                 return;
             }
             List<WorldObject> targets = new List<WorldObject>();
@@ -709,7 +709,7 @@ namespace Game.Spells
                         break;
                     }
                 default:
-                    Contract.Assert(false, "Spell.SelectImplicitAreaTargets: received not implemented target reference type");
+                    Cypher.Assert(false, "Spell.SelectImplicitAreaTargets: received not implemented target reference type");
                     return;
             }
             if (referer == null)
@@ -730,7 +730,7 @@ namespace Game.Spells
                     center = referer.GetPosition();
                     break;
                 default:
-                    Contract.Assert(false, "Spell.SelectImplicitAreaTargets: received not implemented target reference type");
+                    Cypher.Assert(false, "Spell.SelectImplicitAreaTargets: received not implemented target reference type");
                     return;
             }
             List<WorldObject> targets = new List<WorldObject>();
@@ -2182,7 +2182,7 @@ namespace Game.Spells
                 if (scaleAura)
                 {
                     aurSpellInfo = m_spellInfo.GetAuraRankForLevel(unitTarget.getLevel());
-                    Contract.Assert(aurSpellInfo != null);
+                    Cypher.Assert(aurSpellInfo != null);
                     foreach (SpellEffectInfo effect in aurSpellInfo.GetEffectsForDifficulty(0))
                     {
                         if (effect == null)
@@ -3507,7 +3507,7 @@ namespace Game.Spells
                     }
                 case SpellCastResult.CantUntalent:
                     {
-                        Contract.Assert(param1.HasValue);
+                        Cypher.Assert(param1.HasValue);
                         packet.FailedArg1 = (int)param1;
                         break;
                     }
@@ -6844,7 +6844,7 @@ namespace Game.Spells
                         hookType = SpellScriptHookType.EffectHitTarget;
                         break;
                     default:
-                        Contract.Assert(false);
+                        Cypher.Assert(false);
                         return false;
                 }
                 script._PrepareScriptCall(hookType);
@@ -7528,7 +7528,7 @@ namespace Game.Spells
         public SpellValue(Difficulty difficulty, SpellInfo proto)
         {
             var effects = proto.GetEffectsForDifficulty(difficulty);
-            Contract.Assert(effects.Length <= SpellConst.MaxEffects);
+            Cypher.Assert(effects.Length <= SpellConst.MaxEffects);
             foreach (SpellEffectInfo effect in effects)
                 if (effect != null)
                     EffectBasePoints[effect.EffectIndex] = effect.BasePoints;
@@ -7795,7 +7795,7 @@ namespace Game.Spells
                             if (!m_Spell.m_targets.HasDst())
                             {
                                 ulong n_offset = m_Spell.handle_delayed(0);
-                                Contract.Assert(n_offset == m_Spell.GetDelayMoment());
+                                Cypher.Assert(n_offset == m_Spell.GetDelayMoment());
                             }
                             // re-plan the event for the delay moment
                             m_Spell.GetCaster().m_Events.AddEvent(this, e_time + m_Spell.GetDelayMoment(), false);

Source/Game/Spells/SpellCastTargets.cs

@@ -19,7 +19,6 @@ using Framework.Constants;
 using Game.Entities;
 using Game.Network.Packets;
 using System;
-using System.Diagnostics.Contracts;
 
 namespace Game.Spells
 {
@@ -280,7 +279,7 @@ namespace Game.Spells
 
         public void ModSrc(Position pos)
         {
-            Contract.Assert(m_targetMask.HasAnyFlag(SpellCastTargetFlags.SourceLocation));
+            Cypher.Assert(m_targetMask.HasAnyFlag(SpellCastTargetFlags.SourceLocation));
             m_src.Relocate(pos);
         }
 
@@ -331,13 +330,13 @@ namespace Game.Spells
 
         public void ModDst(Position pos)
         {
-            Contract.Assert(m_targetMask.HasAnyFlag(SpellCastTargetFlags.DestLocation));
+            Cypher.Assert(m_targetMask.HasAnyFlag(SpellCastTargetFlags.DestLocation));
             m_dst.Relocate(pos);
         }
 
         public void ModDst(SpellDestination spellDest)
         {
-            Contract.Assert(m_targetMask.HasAnyFlag(SpellCastTargetFlags.DestLocation));
+            Cypher.Assert(m_targetMask.HasAnyFlag(SpellCastTargetFlags.DestLocation));
             m_dst = spellDest;
         }
 

Source/Game/Spells/SpellEffects.cs

@@ -32,7 +32,6 @@ using Game.Movement;
 using Game.Network.Packets;
 using System;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 using System.Linq;
 
 namespace Game.Spells
@@ -770,7 +769,7 @@ namespace Game.Spells
             if (m_spellAura == null || unitTarget == null)
                 return;
 
-            Contract.Assert(unitTarget == m_spellAura.GetOwner());
+            Cypher.Assert(unitTarget == m_spellAura.GetOwner());
             m_spellAura._ApplyEffectForTargets(effIndex);
         }
 
@@ -787,7 +786,7 @@ namespace Game.Spells
 
             if (m_spellAura == null || unitTarget == null)
                 return;
-            Contract.Assert(unitTarget == m_spellAura.GetOwner());
+            Cypher.Assert(unitTarget == m_spellAura.GetOwner());
             m_spellAura._ApplyEffectForTargets(effIndex);
         }
 
@@ -1253,7 +1252,7 @@ namespace Game.Spells
                     return;
             }
 
-            Contract.Assert(m_spellAura.GetDynobjOwner());
+            Cypher.Assert(m_spellAura.GetDynobjOwner());
             m_spellAura._ApplyEffectForTargets(effIndex);
         }
 
@@ -2436,7 +2435,7 @@ namespace Game.Spells
                     if (OldSummon.IsDead())
                         return;
 
-                    Contract.Assert(OldSummon.GetMap() == owner.GetMap());
+                    Cypher.Assert(OldSummon.GetMap() == owner.GetMap());
 
                     float px, py, pz;
                     owner.GetClosePoint(out px, out py, out pz, OldSummon.GetObjectSize());

Source/Game/Spells/SpellManager.cs

@@ -1956,11 +1956,11 @@ namespace Game.Entities
             Dictionary<uint, MultiMap<uint, SpellXSpellVisualRecord>> visualsBySpell = new Dictionary<uint, MultiMap<uint, SpellXSpellVisualRecord>>();
             foreach (var effect in CliDB.SpellEffectStorage.Values)
             {
-                /*Contract.Assert(effect.EffectIndex < MAX_SPELL_EFFECTS, "MAX_SPELL_EFFECTS must be at least {0}", effect.EffectIndex);
-                Contract.Assert(effect.Effect < TOTAL_SPELL_EFFECTS, "TOTAL_SPELL_EFFECTS must be at least {0}", effect.Effect);
-                Contract.Assert(effect.EffectAura < TOTAL_AURAS, "TOTAL_AURAS must be at least {0}", effect.EffectAura);
-                Contract.Assert(effect.ImplicitTarget[0] < TOTAL_SPELL_TARGETS, "TOTAL_SPELL_TARGETS must be at least {0}", effect.ImplicitTarget[0]);
-                Contract.Assert(effect.ImplicitTarget[1] < TOTAL_SPELL_TARGETS, "TOTAL_SPELL_TARGETS must be at least {0}", effect.ImplicitTarget[1]);*/
+                Cypher.Assert(effect.EffectIndex < SpellConst.MaxEffects, $"MAX_SPELL_EFFECTS must be at least {effect.EffectIndex}");
+                Cypher.Assert(effect.Effect < (int)SpellEffectName.TotalSpellEffects, $"TOTAL_SPELL_EFFECTS must be at least {effect.Effect}");
+                Cypher.Assert(effect.EffectAura < (int)AuraType.Total, $"TOTAL_AURAS must be at least {effect.EffectAura}");
+                Cypher.Assert(effect.ImplicitTarget[0] < (int)Targets.TotalSpellTargets, $"TOTAL_SPELL_TARGETS must be at least {effect.ImplicitTarget[0]}");
+                Cypher.Assert(effect.ImplicitTarget[1] < (int)Targets.TotalSpellTargets, $"TOTAL_SPELL_TARGETS must be at least {effect.ImplicitTarget[1]}");
 
                 if (!effectsBySpell.ContainsKey(effect.SpellID))
                     effectsBySpell[effect.SpellID] = new Dictionary<uint, SpellEffectRecord[]>();

Source/Scripts/Northrend/IcecrownCitadel/LordMarrowgar.cs

@@ -24,7 +24,6 @@ using Game.Scripting;
 using Game.Spells;
 using System;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 
 namespace Scripts.Northrend.IcecrownCitadel
 {
@@ -398,11 +397,10 @@ namespace Scripts.Northrend.IcecrownCitadel
         [Script]
         class npc_bone_spike : ScriptedAI
         {
-            public npc_bone_spike(Creature creature)
-                : base(creature)
+            public npc_bone_spike(Creature creature) : base(creature)
             {
                 _hasTrappedUnit = false;
-                Contract.Assert(creature.GetVehicleKit());
+                Cypher.Assert(creature.GetVehicleKit());
 
                 SetCombatMovement(false);
             }

Source/Scripts/Northrend/Ulduar/FlameLeviathan.cs

@@ -23,7 +23,6 @@ using Game.Scripting;
 using Game.Spells;
 using System;
 using System.Collections.Generic;
-using System.Diagnostics.Contracts;
 
 namespace Scripts.Northrend.Ulduar.FlameLeviathan
 {
@@ -217,7 +216,7 @@ namespace Scripts.Northrend.Ulduar.FlameLeviathan
 
         public override void InitializeAI()
         {
-            Contract.Assert(vehicle);
+            Cypher.Assert(vehicle);
             if (!me.IsDead())
                 Reset();
 
@@ -558,7 +557,7 @@ namespace Scripts.Northrend.Ulduar.FlameLeviathan
             : base(creature)
         {
             vehicle = creature.GetVehicleKit();
-            Contract.Assert(vehicle);
+            Cypher.Assert(vehicle);
             me.SetReactState(ReactStates.Passive);
             me.SetDisplayId(me.GetCreatureTemplate().ModelId2);
             instance = creature.GetInstanceScript();
@@ -736,7 +735,7 @@ namespace Scripts.Northrend.Ulduar.FlameLeviathan
     {
         public npc_mechanolift(Creature creature) : base(creature)
         {
-            Contract.Assert(me.GetVehicleKit());
+            Cypher.Assert(me.GetVehicleKit());
         }
 
         uint MoveTimer;

Source/WorldServer/Server.cs

@@ -22,6 +22,7 @@ using Game;
 using Game.Chat;
 using Game.Network;
 using System;
+using System.Diagnostics;
 using System.Globalization;
 using System.Threading;
 
@@ -39,7 +40,7 @@ namespace WorldServer
 
             Console.CancelKeyPress += (o, e) => Global.WorldMgr.StopNow(ShutdownExitCode.Shutdown);
 
-            if (!ConfigMgr.Load(System.Diagnostics.Process.GetCurrentProcess().ProcessName + ".conf"))
+            if (!ConfigMgr.Load(Process.GetCurrentProcess().ProcessName + ".conf"))
                 ExitNow();
 
             if (!StartDB())