Core/Scripts: Implemented new aura script hook OnEnterLeaveCombat

Port From (https://github.com/TrinityCore/TrinityCore/commit/2420f4e7a10c430ea28b2d71a17f54da0c244a54)

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

@@ -2210,7 +2210,7 @@ namespace Game.Entities
                 stmt.AddValue(index++, GetStat((Stats)i));
 
             for (int i = 0; i < (int)SpellSchools.Max; ++i)
-                stmt.AddValue(index++, GetResistance((SpellSchools)i)));
+                stmt.AddValue(index++, GetResistance((SpellSchools)i));
 
             stmt.AddValue(index++, (float)m_activePlayerData.BlockPercentage);
             stmt.AddValue(index++, (float)m_activePlayerData.DodgePercentage);

Source/Game/Entities/Player/Player.cs

@@ -3912,8 +3912,10 @@ namespace Game.Entities
         public static bool IsValidClass(Class _class) { return Convert.ToBoolean((1 << ((int)_class - 1)) & (int)Class.ClassMaskAllPlayable); }
         public static bool IsValidRace(Race _race) { return Convert.ToBoolean((ulong)SharedConst.GetMaskForRace(_race) & SharedConst.RaceMaskAllPlayable); }
 
-        public void OnCombatExit()
+        public override void OnCombatExit()
         {
+            base.OnCombatExit();
+
             UpdatePotionCooldown();
             m_combatExitTime = Time.GetMSTime();
         }

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

@@ -285,8 +285,8 @@ namespace Game.Entities
                 else if (!IsCharmed())
                     return;
             }
-            else
-                ToPlayer().OnCombatExit();
+            
+            OnCombatExit();
 
             RemoveAurasWithInterruptFlags(SpellAuraInterruptFlags.LeavingCombat);
         }
@@ -328,6 +328,15 @@ namespace Game.Entities
             return fThreat * m_threatModifier[(int)school];
         }
 
+        public virtual void OnCombatExit()
+        {
+            foreach (var pair in m_appliedAuras)
+            {
+                AuraApplication aurApp = pair.Value;
+                aurApp.GetBase().CallScriptEnterLeaveCombatHandlers(aurApp, false);
+            }
+        }
+
         public bool IsTargetableForAttack(bool checkFakeDeath = true)
         {
             if (!IsAlive())
@@ -1428,6 +1437,12 @@ namespace Game.Entities
             foreach (var unit in m_Controlled)
                 unit.SetInCombatState(PvP, enemy);
 
+            foreach (var pair in m_appliedAuras)
+            {
+                AuraApplication aurApp = pair.Value;
+                aurApp.GetBase().CallScriptEnterLeaveCombatHandlers(aurApp, true);
+            }
+
             RemoveAurasWithInterruptFlags(SpellAuraInterruptFlags.EnteringCombat);
             ProcSkillsAndAuras(enemy, ProcFlags.EnterCombat, ProcFlags.None, ProcFlagsSpellType.MaskAll, ProcFlagsSpellPhase.None, ProcFlagsHit.None, null, null, null);
         }