[8023] Move guardian list at Unit level and unsummon guardians at owner-creature death/unload.

This expected to fix well known crash at intances unload with creature with summoned guardians.
Note: this "fix" special case but not original source of problem in general.

src/game/Player.cpp

@@ -1372,7 +1372,6 @@ void Player::setDeathState(DeathState s)
 
         // remove uncontrolled pets
         RemoveMiniPet();
-        RemoveGuardians();
 
         // save value before aura remove in Unit::setDeathState
         ressSpellId = GetUInt32Value(PLAYER_SELF_RES_SPELL);
@@ -1764,7 +1763,6 @@ void Player::RemoveFromWorld()
         Uncharm();
         UnsummonAllTotems();
         RemoveMiniPet();
-        RemoveGuardians();
     }
 
     for(int i = PLAYER_SLOT_START; i < PLAYER_SLOT_END; ++i)
@@ -16213,7 +16211,7 @@ void Player::RemovePet(Pet* pet, PetSaveMode mode, bool returnreagent)
             m_miniPet = 0;
             break;
         case GUARDIAN_PET:
-            m_guardianPets.erase(pet->GetGUID());
+            RemoveGuardian(pet);
             break;
         default:
             if(GetPetGUID() == pet->GetGUID())
@@ -16270,32 +16268,6 @@ Pet* Player::GetMiniPet()
     return ObjectAccessor::GetPet(m_miniPet);
 }
 
-void Player::RemoveGuardians()
-{
-    while(!m_guardianPets.empty())
-    {
-        uint64 guid = *m_guardianPets.begin();
-        if(Pet* pet = ObjectAccessor::GetPet(guid))
-            pet->Remove(PET_SAVE_AS_DELETED);
-
-        m_guardianPets.erase(guid);
-    }
-}
-
-bool Player::HasGuardianWithEntry(uint32 entry)
-{
-    // pet guid middle part is entry (and creature also)
-    // and in guardian list must be guardians with same entry _always_
-    for(GuardianPetList::const_iterator itr = m_guardianPets.begin(); itr != m_guardianPets.end(); ++itr)
-    {
-        if(Pet* pet = ObjectAccessor::GetPet(*itr))
-            if (pet->GetEntry() == entry)
-                return true;
-    }
-
-    return false;
-}
-
 void Player::Uncharm()
 {
     Unit* charm = GetCharm();

src/game/Player.h

@@ -273,8 +273,6 @@ struct Runes
     }
 };
 
-typedef std::set<uint64> GuardianPetList;
-
 struct EnchantDuration
 {
     EnchantDuration() : item(NULL), slot(MAX_ENCHANTMENT_SLOT), leftduration(0) {};
@@ -991,10 +989,6 @@ class MANGOS_DLL_SPEC Player : public Unit
         void RemoveMiniPet();
         Pet* GetMiniPet();
         void SetMiniPet(Pet* pet) { m_miniPet = pet->GetGUID(); }
-        void RemoveGuardians();
-        bool HasGuardianWithEntry(uint32 entry);
-        void AddGuardian(Pet* pet) { m_guardianPets.insert(pet->GetGUID()); }
-        GuardianPetList const& GetGuardians() const { return m_guardianPets; }
         void Uncharm();
         uint32 GetPhaseMaskForSpawn() const;                // used for proper set phase for DB at GM-mode creature/GO spawn
 
@@ -2311,7 +2305,6 @@ class MANGOS_DLL_SPEC Player : public Unit
         uint64 m_auraUpdateMask;
 
         uint64 m_miniPet;
-        GuardianPetList m_guardianPets;
 
         // Player summoning
         time_t m_summon_expire;

src/game/SpellEffects.cpp

@@ -3711,8 +3711,7 @@ void Spell::EffectSummonGuardian(uint32 i)
 
         spawnCreature->AIM_Initialize();
 
-        if(m_caster->GetTypeId()==TYPEID_PLAYER)
-            ((Player*)m_caster)->AddGuardian(spawnCreature);
+        m_caster->AddGuardian(spawnCreature);
 
         map->Add((Creature*)spawnCreature);
     }

src/game/Unit.cpp

@@ -7383,13 +7383,10 @@ void Unit::CombatStopWithPets(bool includingCast)
         pet->CombatStop(includingCast);
     if(Unit* charm = GetCharm())
         charm->CombatStop(includingCast);
-    if(GetTypeId()==TYPEID_PLAYER)
-    {
-        GuardianPetList const& guardians = ((Player*)this)->GetGuardians();
-        for(GuardianPetList::const_iterator itr = guardians.begin(); itr != guardians.end(); ++itr)
-            if(Unit* guardian = Unit::GetUnit(*this,*itr))
-                guardian->CombatStop(includingCast);
-    }
+
+    for(GuardianPetList::const_iterator itr = m_guardianPets.begin(); itr != m_guardianPets.end(); ++itr)
+        if(Unit* guardian = Unit::GetUnit(*this,*itr))
+            guardian->CombatStop(includingCast);
 }
 
 bool Unit::isAttackingPlayer() const
@@ -7563,6 +7560,44 @@ void Unit::SetCharm(Unit* pet)
         ((Player*)this)->m_mover = pet ? pet : this;
 }
 
+
+void Unit::AddGuardian( Pet* pet )
+{
+    m_guardianPets.insert(pet->GetGUID());
+}
+
+
+void Unit::RemoveGuardian( Pet* pet )
+{
+    m_guardianPets.erase(pet->GetGUID());
+}
+
+void Unit::RemoveGuardians()
+{
+    while(!m_guardianPets.empty())
+    {
+        uint64 guid = *m_guardianPets.begin();
+        if(Pet* pet = ObjectAccessor::GetPet(guid))
+            pet->Remove(PET_SAVE_AS_DELETED);
+
+        m_guardianPets.erase(guid);
+    }
+}
+
+bool Unit::HasGuardianWithEntry(uint32 entry)
+{
+    // pet guid middle part is entry (and creature also)
+    // and in guardian list must be guardians with same entry _always_
+    for(GuardianPetList::const_iterator itr = m_guardianPets.begin(); itr != m_guardianPets.end(); ++itr)
+    {
+        if(Pet* pet = ObjectAccessor::GetPet(*itr))
+            if (pet->GetEntry() == entry)
+                return true;
+    }
+
+    return false;
+}
+
 void Unit::UnsummonAllTotems()
 {
     for (int8 i = 0; i < MAX_TOTEM; ++i)
@@ -9461,6 +9496,7 @@ void Unit::setDeathState(DeathState s)
     if (s == JUST_DIED)
     {
         RemoveAllAurasOnDeath();
+        RemoveGuardians();
         UnsummonAllTotems();
 
         ModifyAuraState(AURA_STATE_HEALTHLESS_20_PERCENT, false);
@@ -10322,6 +10358,7 @@ void Unit::RemoveFromWorld()
     if(IsInWorld())
     {
         RemoveNotOwnSingleTargetAuras();
+        RemoveGuardians();
     }
 
     Object::RemoveFromWorld();

src/game/Unit.h

@@ -859,6 +859,8 @@ enum ReactiveType
 #define MAX_REACTIVE 3
 #define MAX_TOTEM 4
 
+typedef std::set<uint64> GuardianPetList;
+
 // delay time next attack to prevent client attack animation problems
 #define ATTACK_DISPLAY_DELAY 200
 
@@ -1191,6 +1193,11 @@ class MANGOS_DLL_SPEC Unit : public WorldObject
         void SetPet(Pet* pet);
         void SetCharm(Unit* pet);
 
+        void AddGuardian(Pet* pet);
+        void RemoveGuardian(Pet* pet);
+        void RemoveGuardians();
+        bool HasGuardianWithEntry(uint32 entry);
+
         bool isCharmed() const { return GetCharmerGUID() != 0; }
 
         CharmInfo* GetCharmInfo() { return m_charmInfo; }
@@ -1581,5 +1588,7 @@ class MANGOS_DLL_SPEC Unit : public WorldObject
         FollowerRefManager m_FollowingRefManager;
 
         ComboPointHolderSet m_ComboPointHolders;
+
+        GuardianPetList m_guardianPets;
 };
 #endif

src/shared/revision_nr.h

@@ -1,4 +1,4 @@
 #ifndef __REVISION_NR_H__
 #define __REVISION_NR_H__
- #define REVISION_NR "8022"
+ #define REVISION_NR "8023"
 #endif // __REVISION_NR_H__