*Minor clean in scripts.

*Add some checks in scripts.

--HG--
branch : trunk

src/bindings/scripts/scripts/boss/boss_taerar.cpp

@@ -79,6 +79,9 @@ struct TRINITY_DLL_DECL boss_taerarAI : public ScriptedAI
 
     void SummonShades(Unit* victim)
     {
+        if(!victim)
+            return;
+
         Rand = rand()%15;
         switch (rand()%2)
         {

src/bindings/scripts/scripts/boss/boss_ysondre.cpp

@@ -69,6 +69,9 @@ struct TRINITY_DLL_DECL boss_ysondreAI : public ScriptedAI
 
     void SummonDruids(Unit* victim)
     {
+        if(!victim)
+            return;
+
         Rand = rand()%10;
         switch (rand()%2)
         {

src/bindings/scripts/scripts/custom/test.cpp

@@ -47,7 +47,7 @@ struct TRINITY_DLL_DECL npc_testAI : public npc_escortAI
                 {
                     m_creature->Say("Wild Felboar attack!", LANG_UNIVERSAL, 0);
                     Creature* temp = m_creature->SummonCreature(21878, m_creature->GetPositionX()+5, m_creature->GetPositionY()+7, m_creature->GetPositionZ(), 0, TEMPSUMMON_TIMED_DESPAWN_OUT_OF_COMBAT, 3000);
-
+                    if(temp)
                         temp->AI()->AttackStart(m_creature);
                 }
                 break;

src/bindings/scripts/scripts/npc/npcs_special.cpp

@@ -69,8 +69,10 @@ struct TRINITY_DLL_DECL npc_chicken_cluckAI : public ScriptedAI
         if(m_creature->HasFlag(UNIT_NPC_FLAGS, UNIT_NPC_FLAG_QUESTGIVER))
         {
             if(ResetFlagTimer < diff)
+            {
                 EnterEvadeMode();
-            else ResetFlagTimer -= diff;
+                return;
+            }else ResetFlagTimer -= diff;
         }
 
         if(UpdateVictim())

src/bindings/scripts/scripts/zone/alterac_mountains/alterac_mountains.cpp

@@ -46,6 +46,7 @@ struct TRINITY_DLL_DECL npc_ravenholdtAI : public ScriptedAI
 
     void Aggro(Unit* who) { }
 };
+
 CreatureAI* GetAI_npc_ravenholdt(Creature *_Creature)
 {
     return new npc_ravenholdtAI (_Creature);

src/bindings/scripts/scripts/zone/aunchindoun/mana_tombs/boss_nexusprince_shaffar.cpp

@@ -261,7 +261,10 @@ struct TRINITY_DLL_DECL mob_ethereal_beaconAI : public ScriptedAI
         }else Apprentice_Timer -= diff;
 
         if( CanEvade )
+        {
             EnterEvadeMode();
+            return;
+        }
 
         DoMeleeAttackIfReady();
     }

src/bindings/scripts/scripts/zone/aunchindoun/sethekk_halls/boss_tailonking_ikiss.cpp

@@ -154,7 +154,8 @@ struct TRINITY_DLL_DECL boss_talon_king_ikissAI : public ScriptedAI
         {
             //second top aggro target in normal, random target in heroic correct?
             Unit *target = NULL;
-            if (HeroicMode ? target = SelectUnit(SELECT_TARGET_RANDOM,0) : target = SelectUnit(SELECT_TARGET_TOPAGGRO,1))
+            target = HeroicMode ? SelectUnit(SELECT_TARGET_RANDOM,0) : SelectUnit(SELECT_TARGET_TOPAGGRO,1);
+            if (target)
                 DoCast(target,HeroicMode ? H_SPELL_POLYMORPH : SPELL_POLYMORPH);
             Sheep_Timer = 15000+rand()%2500;
         }else Sheep_Timer -= diff;

src/bindings/scripts/scripts/zone/aunchindoun/shadow_labyrinth/boss_ambassador_hellmaw.cpp

@@ -77,7 +77,6 @@ struct TRINITY_DLL_DECL boss_ambassador_hellmawAI : public ScriptedAI
                 IsBanished = true;
             }
             else pInstance->SetData(TYPE_HELLMAW,FAIL);
-
             if (pInstance->GetData(TYPE_OVERSEER) == DONE)
             {
                 if (m_creature->HasAura(SPELL_BANISH,0))
@@ -148,7 +147,7 @@ struct TRINITY_DLL_DECL boss_ambassador_hellmawAI : public ScriptedAI
         {
             if (EventCheck_Timer < diff)
             {
-                if (pInstance)
+                if(pInstance)
                 {
                     if (pInstance->GetData(TYPE_OVERSEER) == DONE)
                         DoIntro();

src/bindings/scripts/scripts/zone/aunchindoun/shadow_labyrinth/boss_grandmaster_vorpil.cpp

@@ -156,6 +156,7 @@ struct TRINITY_DLL_DECL boss_grandmaster_vorpilAI : public ScriptedAI
         banish_Timer = 17000;
         HelpYell = false;
         destroyPortals();
+
         if(pInstance)
             pInstance->SetData(DATA_GRANDMASTERVORPILEVENT, NOT_STARTED);
     }
@@ -168,9 +169,12 @@ struct TRINITY_DLL_DECL boss_grandmaster_vorpilAI : public ScriptedAI
             {
                 Creature *Portal = NULL;
                 Portal = m_creature->SummonCreature(MOB_VOID_PORTAL,VoidPortalCoords[i][0],VoidPortalCoords[i][1],VoidPortalCoords[i][2],0,TEMPSUMMON_CORPSE_DESPAWN,3000000);
+                if(Portal)
+                {
                     PortalsGuid[i] = Portal->GetGUID();
                     Portal->CastSpell(Portal,SPELL_VOID_PORTAL_VISUAL,false);
                 }
+            }
             sumportals = true;
             summonTraveler_Timer = 5000;
         }
@@ -221,6 +225,7 @@ struct TRINITY_DLL_DECL boss_grandmaster_vorpilAI : public ScriptedAI
     {
         DoScriptText(SAY_DEATH, m_creature);
         destroyPortals();
+
         if(pInstance)
             pInstance->SetData(DATA_GRANDMASTERVORPILEVENT, DONE);
     }
@@ -234,6 +239,7 @@ struct TRINITY_DLL_DECL boss_grandmaster_vorpilAI : public ScriptedAI
             case 2: DoScriptText(SAY_AGGRO3, m_creature); break;
         }
         summonPortals();
+
         if(pInstance)
             pInstance->SetData(DATA_GRANDMASTERVORPILEVENT, IN_PROGRESS);
     }
@@ -251,7 +257,6 @@ struct TRINITY_DLL_DECL boss_grandmaster_vorpilAI : public ScriptedAI
 
     void UpdateAI(const uint32 diff)
     {
-
         if (!UpdateVictim())
             return;
 

src/bindings/scripts/scripts/zone/azshara/azshara.cpp

@@ -71,6 +71,7 @@ struct TRINITY_DLL_DECL mobs_spitelashesAI : public ScriptedAI
             m_creature->DealDamage(m_creature, m_creature->GetHealth(), NULL, DIRECT_DAMAGE, SPELL_SCHOOL_MASK_NORMAL, NULL, false);
             m_creature->RemoveCorpse();                     //you don't see any corpse on off.
             EnterEvadeMode();                               //spellhit will be set to false
+            return;
         }
         // walk 5 seconds before summoning
         if( spellhit && morphtimer<5000 )

src/bindings/scripts/scripts/zone/azuremyst_isle/azuremyst_isle.cpp

@@ -162,7 +162,7 @@ struct TRINITY_DLL_DECL npc_draenei_survivorAI : public ScriptedAI
                 EnterEvadeMode();
                 //set creature health
                 m_creature->SetHealth(int(m_creature->GetMaxHealth()*.1));
-
+                return;
             }else UnSpawnTimer -= diff;
         }
 
@@ -512,11 +512,14 @@ struct TRINITY_DLL_DECL npc_geezleAI : public ScriptedAI
         Step = 1;
         EventStarted = true;
         Creature* Spark = m_creature->SummonCreature(MOB_SPARK, SparkPos[0], SparkPos[1], SparkPos[2], 0, TEMPSUMMON_CORPSE_TIMED_DESPAWN, 1000);
+        if(Spark)
+        {
             SparkGUID = Spark->GetGUID();
             Spark->setActive(true);
             Spark->RemoveFlag(UNIT_NPC_FLAGS, UNIT_NPC_FLAG_GOSSIP);
-        m_creature->GetMotionMaster()->MovePoint(0, -5092.26, -11252, 0.71);
             Spark->GetMotionMaster()->MovePoint(0, -5080.70, -11253.61, 0.56);
+        }
+        m_creature->GetMotionMaster()->MovePoint(0, -5092.26, -11252, 0.71);
         SayTimer = 23000;
     }
 
@@ -533,8 +536,11 @@ struct TRINITY_DLL_DECL npc_geezleAI : public ScriptedAI
             return 1000;
         case 2:
             DoScriptText(GEEZLE_SAY_1, m_creature, Spark);
+            if(Spark)
+            {
                 Spark->SetInFront(m_creature);
                 m_creature->SetInFront(Spark);
+            }
             return 5000;
         case 3: DoScriptText(SPARK_SAY_2, Spark); return 7000;
         case 4: DoScriptText(SPARK_SAY_3, Spark); return 8000;
@@ -544,9 +550,11 @@ struct TRINITY_DLL_DECL npc_geezleAI : public ScriptedAI
         case 8: DoScriptText(GEEZLE_SAY_7, m_creature, Spark); return 2000;
         case 9:
             m_creature->GetMotionMaster()->MoveTargetedHome();
+            if(Spark)
                 Spark->GetMotionMaster()->MovePoint(0, -5030.95, -11291.99, 7.97);
             return 20000;
         case 10:
+            if(Spark)
                 Spark->DealDamage(Spark,Spark->GetHealth(),NULL, DIRECT_DAMAGE, SPELL_SCHOOL_MASK_NORMAL, NULL, false);
             //DespawnNagaFlag(false);
             m_creature->SetVisibility(VISIBILITY_OFF);

src/bindings/scripts/scripts/zone/barrens/the_barrens.cpp

@@ -145,6 +145,7 @@ struct TRINITY_DLL_DECL npc_taskmaster_fizzuleAI : public ScriptedAI
             if( Reset_Timer < diff )
             {
                 EnterEvadeMode();
+                return;
             } else Reset_Timer -= diff;
         }
 

src/bindings/scripts/scripts/zone/black_temple/boss_illidan.cpp

@@ -1067,6 +1067,7 @@ struct TRINITY_DLL_DECL npc_akama_illidanAI : public ScriptedAI
 
     void BeginTalk()
     {
+        if(pInstance)
             pInstance->SetData(DATA_ILLIDANSTORMRAGEEVENT, IN_PROGRESS);
 
         for(uint8 i = 0; i < 2; i++)
@@ -1670,6 +1671,7 @@ bool GOHello_cage_trap(Player* plr, GameObject* go)
     CellLock<GridReadGuard> cell_lock(cell, pair);
     cell_lock->Visit(cell_lock, cSearcher, *(plr->GetMap()));
 
+    if(trigger)
         ((cage_trap_triggerAI*)trigger->AI())->Active = true;
     go->SetUInt32Value(GAMEOBJECT_STATE, 0);
     return true;

src/bindings/scripts/scripts/zone/black_temple/boss_reliquary_of_souls.cpp

@@ -398,6 +398,7 @@ struct TRINITY_DLL_DECL boss_essence_of_sufferingAI : public ScriptedAI
         targets.sort(TargetDistanceOrder(m_creature)); // Sort players by distance.
         targets.resize(1); // Only need closest target.
         Unit* target = targets.front(); // Get the first target.
+        if(target)
             target->CastSpell(m_creature, SPELL_FIXATE_TAUNT, true);
         DoResetThreat();
         m_creature->AddThreat(target,1000000);

src/bindings/scripts/scripts/zone/black_temple/boss_shade_of_akama.cpp

@@ -476,8 +476,10 @@ struct TRINITY_DLL_DECL boss_shade_of_akamaAI : public ScriptedAI
                     m_creature->GetMotionMaster()->MoveTargetedHome();
                 }
                 if(ResetTimer < diff)
+                {
                     EnterEvadeMode();// Reset a little while after killing Akama, evade and respawn Akama
-                else ResetTimer -= diff;
+                    return;
+                }else ResetTimer -= diff;
             }
 
             DoMeleeAttackIfReady();

src/bindings/scripts/scripts/zone/black_temple/boss_supremus.cpp

@@ -195,9 +195,6 @@ struct TRINITY_DLL_DECL boss_supremusAI : public ScriptedAI
             {
                 if(Unit* target = SelectUnit(SELECT_TARGET_RANDOM, 0, 999, true))
                 {
-                    if(!target)
-                        target = m_creature->getVictim();
-
                     DoCast(target, SPELL_VOLCANIC_SUMMON);
                     DoScriptText(EMOTE_GROUND_CRACK, m_creature);
                     SummonVolcanoTimer = 10000;
@@ -269,13 +266,14 @@ struct TRINITY_DLL_DECL npc_volcanoAI : public ScriptedAI
         {
             uint64 SupremusGUID = pInstance->GetData64(DATA_SUPREMUS);
             Creature* Supremus = (Unit::GetCreature((*m_creature), SupremusGUID));
-            if(!Eruption && !((boss_supremusAI*)Supremus->AI())->Phase1)
+            if(!Eruption && Supremus && !((boss_supremusAI*)Supremus->AI())->Phase1)
             {
                 Eruption = true;
                 DoCast(m_creature, SPELL_VOLCANIC_ERUPTION);
             }
-            else if(Eruption && ((boss_supremusAI*)Supremus->AI())->Phase1)
+            else if((Eruption && Supremus && ((boss_supremusAI*)Supremus->AI())->Phase1) || !Supremus)
             {
+                if(m_creature->HasAura(SPELL_VOLCANIC_ERUPTION, 0))
                     m_creature->RemoveAura(SPELL_VOLCANIC_ERUPTION, 0);
             }
             CheckTimer = 1500;

src/bindings/scripts/scripts/zone/black_temple/boss_teron_gorefiend.cpp

@@ -382,8 +382,12 @@ struct TRINITY_DLL_DECL boss_teron_gorefiendAI : public ScriptedAI
                         AttackStart(pUnit);
 
                     DoZoneInCombat();
-                }else EnterEvadeMode();
+                }
-
+                else
+                {
+                    EnterEvadeMode();
+                    return;
+                }
             }else AggroTimer -= diff;
         }
 

src/bindings/scripts/scripts/zone/black_temple/illidari_council.cpp

@@ -372,6 +372,7 @@ struct TRINITY_DLL_DECL boss_illidari_councilAI : public ScriptedAI
         {
             error_log(ERROR_INST_DATA);
             EnterEvadeMode();
+            return;
         }
         DoZoneInCombat();
         // Load GUIDs on first aggro because the creature guids are only set as the creatures are created in world-

src/bindings/scripts/scripts/zone/caverns_of_time/old_hillsbrad/old_hillsbrad.cpp

@@ -713,8 +713,11 @@ bool GossipSelect_npc_thrall_old_hillsbrad(Player *player, Creature *_Creature,
     {
         case GOSSIP_ACTION_INFO_DEF+1:
             player->CLOSE_GOSSIP_MENU();
+            if(pInstance)
+            {
                 pInstance->SetData(TYPE_THRALL_EVENT,IN_PROGRESS);
                 pInstance->SetData(TYPE_THRALL_PART1,IN_PROGRESS);
+            }
 
             DoScriptText(SAY_TH_START_EVENT_PART1, _Creature);
 
@@ -732,6 +735,7 @@ bool GossipSelect_npc_thrall_old_hillsbrad(Player *player, Creature *_Creature,
         case GOSSIP_ACTION_INFO_DEF+20:
             player->SEND_GOSSIP_MENU(GOSSIP_ID_SKARLOC3, _Creature->GetGUID());
             _Creature->SummonCreature(SKARLOC_MOUNT,2038.81,270.26,63.20,5.41,TEMPSUMMON_TIMED_DESPAWN,12000);
+            if(pInstance)
                 pInstance->SetData(TYPE_THRALL_PART2,IN_PROGRESS);
 
             DoScriptText(SAY_TH_START_EVENT_PART2, _Creature);
@@ -741,6 +745,7 @@ bool GossipSelect_npc_thrall_old_hillsbrad(Player *player, Creature *_Creature,
 
         case GOSSIP_ACTION_INFO_DEF+3:
             player->CLOSE_GOSSIP_MENU();
+            if(pInstance)
                 pInstance->SetData(TYPE_THRALL_PART3,IN_PROGRESS);
             ((npc_thrall_old_hillsbradAI*)_Creature->AI())->StartWP();
             break;
@@ -827,6 +832,7 @@ bool GossipSelect_npc_taretha(Player *player, Creature *_Creature, uint32 sender
 
         if( pInstance->GetData(TYPE_THRALL_EVENT) == IN_PROGRESS )
         {
+            if(pInstance)
                 pInstance->SetData(TYPE_THRALL_PART4,IN_PROGRESS);
             if(pInstance->GetData64(DATA_EPOCH) == 0)
                  _Creature->SummonCreature(ENTRY_EPOCH,2639.13,698.55,65.43,4.59,TEMPSUMMON_TIMED_OR_DEAD_DESPAWN,120000);

src/bindings/scripts/scripts/zone/coilfang_resevoir/serpent_shrine/boss_fathomlord_karathress.cpp

@@ -131,7 +131,6 @@ struct TRINITY_DLL_DECL boss_fathomlord_karathressAI : public ScriptedAI
             Creature* pAdvisor = NULL;
             for( int i=0; i<3; i++ )
 
-
             if(RAdvisors[i])
             {
                 pAdvisor = (Unit::GetCreature((*m_creature), RAdvisors[i]));

src/bindings/scripts/scripts/zone/coilfang_resevoir/serpent_shrine/boss_lurker_below.cpp

@@ -76,7 +76,8 @@ struct TRINITY_DLL_DECL boss_the_lurker_belowAI : public Scripted_NoMovementAI
 {
     boss_the_lurker_belowAI(Creature *c) : Scripted_NoMovementAI(c), Summons(m_creature)
     {
-        pInstance = ((ScriptedInstance*)c->GetInstanceData());        SpellEntry *TempSpell = (SpellEntry*)GetSpellStore()->LookupEntry(SPELL_SPOUT_ANIM);
+        pInstance = ((ScriptedInstance*)c->GetInstanceData());
+        SpellEntry *TempSpell = (SpellEntry*)GetSpellStore()->LookupEntry(SPELL_SPOUT_ANIM);
         if(TempSpell)
         {
             TempSpell->Effect[0] = 0;//remove all spell effect, only anim is needed
@@ -227,7 +228,7 @@ struct TRINITY_DLL_DECL boss_the_lurker_belowAI : public Scripted_NoMovementAI
              for (Map::PlayerList::const_iterator i = PlayerList.begin(); i != PlayerList.end(); ++i)
              {
                  Player *target = i->getSource();
-                 if(target->isAlive() && m_creature->HasInArc((double)diff/20000*(double)M_PI*2,target) && m_creature->GetDistance(target) <= SPOUT_DIST && !target->IsInWater())
+                 if(target && target->isAlive() && m_creature->HasInArc((double)diff/20000*(double)M_PI*2,target) && m_creature->GetDistance(target) <= SPOUT_DIST && !target->IsInWater())
                      DoCast(target,SPELL_SPOUT,true);//only knock back palyers in arc, in 100yards, not in water
              }
          }
@@ -370,6 +371,7 @@ struct TRINITY_DLL_DECL boss_the_lurker_belowAI : public Scripted_NoMovementAI
                          Summoned = m_creature->SummonCreature(MOB_COILFANG_AMBUSHER,AddPos[i][0],AddPos[i][1],AddPos[i][2], 0, TEMPSUMMON_CORPSE_DESPAWN, 0);
                      else Summoned = m_creature->SummonCreature(MOB_COILFANG_GUARDIAN,AddPos[i][0],AddPos[i][1],AddPos[i][2], 0, TEMPSUMMON_CORPSE_DESPAWN, 0);
 
+                     if(Summoned)
                         Summons.Summon(Summoned);
                      Spawned = true;
                  }

src/bindings/scripts/scripts/zone/coilfang_resevoir/serpent_shrine/boss_morogrim_tidewalker.cpp

@@ -206,6 +206,7 @@ struct TRINITY_DLL_DECL boss_morogrim_tidewalkerAI : public ScriptedAI
                 {
                     Unit* target = SelectUnit(SELECT_TARGET_RANDOM, 0);
                     Creature* Murloc = m_creature->SummonCreature(MurlocCords[i][0],MurlocCords[i][1],MurlocCords[i][2],MurlocCords[i][3],MurlocCords[i][4], TEMPSUMMON_TIMED_DESPAWN_OUT_OF_COMBAT, 10000);
+                    if(target && Murloc)
                         Murloc->AI()->AttackStart(target);
                 }
                 DoScriptText(EMOTE_EARTHQUAKE, m_creature);

src/bindings/scripts/scripts/zone/deadmines/deadmines.cpp

@@ -63,6 +63,9 @@ struct TRINITY_DLL_DECL instance_deadmines : public ScriptedInstance
 
     virtual void Update(uint32 diff)
     {
+        if(!IronCladDoor || !DefiasCannon || !DoorLever)
+            return;
+
         switch(State)
         {
             case CANNON_GUNPOWDER_USED:
@@ -107,6 +110,9 @@ struct TRINITY_DLL_DECL instance_deadmines : public ScriptedInstance
 
     void MoveCreaturesInside()
     {
+        if(!DefiasPirate1 || !DefiasPirate2 || !DefiasCompanion)
+            return;
+
         MoveCreatureInside(DefiasPirate1);
         MoveCreatureInside(DefiasPirate2);
         MoveCreatureInside(DefiasCompanion);

src/bindings/scripts/scripts/zone/dun_morogh/dun_morogh.cpp

@@ -62,7 +62,10 @@ struct TRINITY_DLL_DECL npc_narm_faulkAI : public ScriptedAI
         if (!m_creature->GetUInt32Value(UNIT_FIELD_BYTES_1))
         {
             if(lifeTimer < diff)
-                m_creature->AI()->EnterEvadeMode();
+            {
+                EnterEvadeMode();
+                return;
+            }
             else
                 lifeTimer -= diff;
         }

src/bindings/scripts/scripts/zone/elwynn_forest/elwynn_forest.cpp

@@ -62,7 +62,10 @@ struct TRINITY_DLL_DECL npc_henze_faulkAI : public ScriptedAI
         if (!m_creature->GetUInt32Value(UNIT_FIELD_BYTES_1))
         {
             if(lifeTimer < diff)
-                m_creature->AI()->EnterEvadeMode();
+            {
+                EnterEvadeMode();
+                return;
+            }
             else
                 lifeTimer -= diff;
         }

src/bindings/scripts/scripts/zone/ghostlands/ghostlands.cpp

@@ -182,8 +182,11 @@ struct TRINITY_DLL_DECL npc_ranger_lilathaAI : public npc_escortAI
             DoScriptText(SAY_PROGRESS3, m_creature, player);
             Creature* Summ1 = m_creature->SummonCreature(16342, 7627.083984, -7532.538086, 152.128616, 1.082733, TEMPSUMMON_DEAD_DESPAWN, 0);
             Creature* Summ2 = m_creature->SummonCreature(16343, 7620.432129, -7532.550293, 152.454865, 0.827478, TEMPSUMMON_DEAD_DESPAWN, 0);
+            if(Summ1 && Summ2)
+            {
                 Summ1->Attack(m_creature, true);
                 Summ2->Attack(player, true);
+            }
             m_creature->AI()->AttackStart(Summ1);
             break;
             }

src/bindings/scripts/scripts/zone/gruuls_lair/boss_high_king_maulgar.cpp

@@ -280,9 +280,10 @@ struct TRINITY_DLL_DECL boss_high_king_maulgarAI : public ScriptedAI
                 Unit* target = NULL;
                 target = SelectUnit(SELECT_TARGET_RANDOM, 0);
                 if (target)
+                {
                     AttackStart(target);
                     DoCast(target, SPELL_BERSERKER_C);
-
+                }
                 Charging_Timer = 20000;
             }else Charging_Timer -= diff;
 

src/bindings/scripts/scripts/zone/hellfire_citadel/hellfire_ramparts/boss_vazruden_the_herald.cpp

@@ -308,8 +308,10 @@ struct TRINITY_DLL_DECL boss_vazruden_the_heraldAI : public ScriptedAI
         if(!summoned)
         {
             Creature* Vazruden = m_creature->SummonCreature(ENTRY_VAZRUDEN,VazrudenMiddle[0],VazrudenMiddle[1],VazrudenMiddle[2],0,TEMPSUMMON_CORPSE_TIMED_DESPAWN,6000000);
+            if(Vazruden)
                 VazrudenGUID = Vazruden->GetGUID();
             Creature* Nazan = m_creature->SummonCreature(ENTRY_NAZAN,VazrudenMiddle[0],VazrudenMiddle[1],VazrudenMiddle[2],0,TEMPSUMMON_CORPSE_TIMED_DESPAWN,6000000);
+            if(Nazan)
                 NazanGUID = Nazan->GetGUID();
             summoned = true;
             m_creature->SetVisibility(VISIBILITY_OFF);
@@ -391,6 +393,7 @@ struct TRINITY_DLL_DECL boss_vazruden_the_heraldAI : public ScriptedAI
                     {
                         UnsummonAdds();
                         EnterEvadeMode();
+                        return;
                     }
                 }else
                 {

src/bindings/scripts/scripts/zone/hellfire_citadel/shattered_halls/boss_warchief_kargath_bladefist.cpp

@@ -276,6 +276,7 @@ struct TRINITY_DLL_DECL boss_warchief_kargath_bladefistAI : public ScriptedAI
             if ( tempx > 255 || tempx < 205)
             {
                 EnterEvadeMode();
+                return;
             }
             resetcheck_timer = 5000;
         }else resetcheck_timer -= diff;

src/bindings/scripts/scripts/zone/karazhan/boss_curator.cpp

@@ -130,6 +130,7 @@ struct TRINITY_DLL_DECL boss_curatorAI : public ScriptedAI
             {
                 Unit* target = NULL;
                 target = SelectUnit(SELECT_TARGET_TOPAGGRO, 1);
+                if(target)
                     DoCast(target, SPELL_HATEFUL_BOLT);
 
                 HatefulBoltTimer = 15000;

src/bindings/scripts/scripts/zone/karazhan/boss_moroes.cpp

@@ -104,9 +104,6 @@ struct TRINITY_DLL_DECL boss_moroesAI : public ScriptedAI
 
     void StartEvent()
     {
-        if(!pInstance)
-            return;
-
         if(pInstance)
             pInstance->SetData(DATA_MOROES_EVENT, IN_PROGRESS);
     }
@@ -266,7 +263,10 @@ struct TRINITY_DLL_DECL boss_moroesAI : public ScriptedAI
             return;
 
         if(pInstance && !pInstance->GetData(DATA_MOROES_EVENT))
+        {
             EnterEvadeMode();
+            return;
+        }
 
         if(!Enrage && m_creature->GetHealth()*100 / m_creature->GetMaxHealth() < 30)
         {

src/bindings/scripts/scripts/zone/karazhan/boss_nightbane.cpp

@@ -117,7 +117,12 @@ struct TRINITY_DLL_DECL boss_nightbaneAI : public ScriptedAI
         {
             m_creature->DealDamage(m_creature, m_creature->GetMaxHealth(), NULL, DIRECT_DAMAGE, SPELL_SCHOOL_MASK_NORMAL, NULL, false);
             m_creature->RemoveCorpse();
-        }else pInstance->SetData(DATA_NIGHTBANE_EVENT, NOT_STARTED);
+        }
+        else
+        {
+            if(pInstance)
+                pInstance->SetData(DATA_NIGHTBANE_EVENT, NOT_STARTED);
+        }
 
         HandleTerraceDoors(true);
 

src/bindings/scripts/scripts/zone/karazhan/karazhan.cpp

@@ -288,6 +288,7 @@ struct TRINITY_DLL_DECL npc_barnesAI : public npc_escortAI
                     {
                         RaidWiped = true;
                         EnterEvadeMode();
+                        return;
                     }
 
                     WipeTimer = 15000;
@@ -507,6 +508,8 @@ struct TRINITY_DLL_DECL npc_image_of_medivhAI : public ScriptedAI
         Step = 1;
         EventStarted = true;
         Creature* Arcanagos = m_creature->SummonCreature(MOB_ARCANAGOS,ArcanagosPos[0],ArcanagosPos[1],ArcanagosPos[2],0,TEMPSUMMON_CORPSE_TIMED_DESPAWN,20000);
+        if(!Arcanagos)
+            return;
         ArcanagosGUID = Arcanagos->GetGUID();
         Arcanagos->AddUnitMovementFlag(MOVEMENTFLAG_ONTRANSPORT + MOVEMENTFLAG_LEVITATING);
         (*Arcanagos).GetMotionMaster()->MovePoint(0,ArcanagosPos[0],ArcanagosPos[1],ArcanagosPos[2]);

src/bindings/scripts/scripts/zone/magisters_terrace/boss_vexallus.cpp

@@ -153,6 +153,7 @@ struct TRINITY_DLL_DECL boss_vexallusAI : public ScriptedAI
             {
                 Unit* target = NULL;
                 target = SelectUnit(SELECT_TARGET_RANDOM, 0);
+                if(target)
                     DoCast(target, SPELL_ARCANE_SHOCK);
                 ArcaneShockTimer = 8000;
             }else ArcaneShockTimer -= diff;