feat(Core/SmartScripts): SMART_ACTION_CALL_FOR_HELP should properly call assistance in case of polymorphed creature. (#9231)

Updates #9120

src/server/game/AI/SmartScripts/SmartScript.cpp

@@ -1271,15 +1271,17 @@ void SmartScript::ProcessAction(SmartScriptHolder& e, Unit* unit, uint32 var0, u
                     break;
 
                 for (ObjectList::const_iterator itr = targets->begin(); itr != targets->end(); ++itr)
+                {
                     if (IsCreature(*itr))
                     {
-                        (*itr)->ToCreature()->CallForHelp((float)e.action.callHelp.range);
+                        (*itr)->ToCreature()->CallForHelp((float)e.action.callHelp.range, e.GetEventType() == SMART_EVENT_AGGRO ? unit : nullptr);
                         if (e.action.callHelp.withEmote)
                         {
                             Acore::BroadcastTextBuilder builder(*itr, CHAT_MSG_MONSTER_EMOTE, BROADCAST_TEXT_CALL_FOR_HELP, LANG_UNIVERSAL, nullptr);
                             sCreatureTextMgr->SendChatPacket(*itr, builder, CHAT_MSG_MONSTER_EMOTE);
                         }
                     }
+                }
 
                 delete targets;
                 break;

src/server/game/Entities/Creature/Creature.cpp

@@ -2237,14 +2237,20 @@ void Creature::CallAssistance(Unit* target /*= nullptr*/)
     }
 }
 
-void Creature::CallForHelp(float radius)
+void Creature::CallForHelp(float radius, Unit* target /*= nullptr*/)
+{
+    if (radius <= 0.0f || IsPet() || IsCharmed())
     {
-    if (radius <= 0.0f || !GetVictim() || IsPet() || IsCharmed())
         return;
+    }
 
-    Acore::CallOfHelpCreatureInRangeDo u_do(this, GetVictim(), radius);
+    if (!target)
+    {
+        target = GetVictim();
+    }
+
+    Acore::CallOfHelpCreatureInRangeDo u_do(this, target, radius);
     Acore::CreatureWorker<Acore::CallOfHelpCreatureInRangeDo> worker(this, u_do);
-
     Cell::VisitGridObjects(this, worker, radius);
 }
 

src/server/game/Entities/Creature/Creature.h

@@ -247,7 +247,7 @@ public:
     [[nodiscard]] Unit* SelectNearestTargetInAttackDistance(float dist) const;
 
     void DoFleeToGetAssistance();
-    void CallForHelp(float fRadius);
+    void CallForHelp(float fRadius, Unit* target = nullptr);
     void CallAssistance(Unit* target = nullptr);
     void SetNoCallAssistance(bool val) { m_AlreadyCallAssistance = val; }
     void SetNoSearchAssistance(bool val) { m_AlreadySearchedAssistance = val; }