Scripts: Fixed more uninitialized variables

src/server/scripts/Northrend/Naxxramas/boss_four_horsemen.cpp

@@ -104,6 +104,7 @@ public:
                 if (me->GetEntry() == MOB_HORSEMEN[i])
                     id = Horsemen(i);
             caster = (id == HORSEMEN_LADY || id == HORSEMEN_SIR);
+            encounterActionReset = false;
         }
 
         Horsemen id;

src/server/scripts/Northrend/Nexus/Nexus/instance_nexus.cpp

@@ -58,6 +58,9 @@ public:
 
             Anomalus = 0;
             Keristrasza = 0;
+            AnomalusContainmentSphere = 0;
+            OrmoroksContainmentSphere = 0;
+            TelestrasContainmentSphere = 0;
         }
 
         void OnCreatureCreate(Creature* creature)

src/server/scripts/Northrend/UtgardeKeep/UtgardePinnacle/boss_skadi.cpp

@@ -172,6 +172,7 @@ public:
         boss_skadiAI(Creature* creature) : ScriptedAI(creature), Summons(me)
         {
             instance = creature->GetInstanceScript();
+            m_uiGraufGUID = 0;
         }
 
         InstanceScript* instance;
@@ -207,7 +208,7 @@ public:
 
             Summons.DespawnAll();
             me->SetSpeed(MOVE_FLIGHT, 3.0f);
-            if ((Unit::GetCreature((*me), m_uiGraufGUID) == NULL) && !me->IsMounted())
+            if ((Unit::GetCreature(*me, m_uiGraufGUID) == NULL) && !me->IsMounted())
                  me->SummonCreature(CREATURE_GRAUF, Location[0].GetPositionX(), Location[0].GetPositionY(), Location[0].GetPositionZ(), 3.0f);
             if (instance)
             {
@@ -221,7 +222,7 @@ public:
             me->SetCanFly(false);
             me->Dismount();
             me->RemoveFlag(UNIT_FIELD_FLAGS, UNIT_FLAG_NOT_SELECTABLE | UNIT_FLAG_NON_ATTACKABLE);
-            if (Unit::GetCreature((*me), m_uiGraufGUID) == NULL)
+            if (!Unit::GetCreature(*me, m_uiGraufGUID))
                 me->SummonCreature(CREATURE_GRAUF, Location[0].GetPositionX(), Location[0].GetPositionY(), Location[0].GetPositionZ(), 3.0f);
         }
 

src/server/scripts/Northrend/UtgardeKeep/UtgardePinnacle/boss_ymiron.cpp

@@ -121,6 +121,9 @@ public:
                 m_uiActiveOrder[i] = m_uiActiveOrder[r];
                 m_uiActiveOrder[r] = temp;
             }
+
+            m_uiActivedCreatureGUID = 0;
+            m_uiOrbGUID = 0;
         }
 
         bool m_bIsWalking;