fix(Core/SAI): Force SMC creatures to resume chasing victims once in… (#22581)

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

@@ -72,6 +72,8 @@ SmartAI::SmartAI(Creature* c) : CreatureAI(c)
 
     mcanSpawn = true;
 
+    _chaseOnInterrupt = false;
+
     // Xinef: Vehicle conditions
     m_ConditionsTimer = 0;
     if (me->GetVehicleKit())

src/server/game/AI/SmartScripts/SmartAI.h

@@ -212,6 +212,9 @@ public:
     // Xinef
     void SetWPPauseTimer(uint32 time) { mWPPauseTimer = time; }
 
+    void SetChaseOnInterrupt(bool apply) { _chaseOnInterrupt = apply; }
+    [[nodiscard]] bool CanChaseOnInterrupt() const { return _chaseOnInterrupt; }
+
 private:
     bool mIsCharmed;
     uint32 mFollowCreditType;
@@ -257,6 +260,8 @@ private:
     void CheckConditions(const uint32 diff);
     ConditionList conditions;
     uint32 m_ConditionsTimer;
+
+    bool _chaseOnInterrupt;
 };
 
 class SmartGameObjectAI : public GameObjectAI

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

@@ -742,6 +742,8 @@ void SmartScript::ProcessAction(SmartScriptHolder& e, Unit* unit, uint32 var0, u
 
                     if (e.action.cast.castFlags & SMARTCAST_COMBAT_MOVE)
                     {
+                        CAST_AI(SmartAI, me->AI())->SetChaseOnInterrupt(true);
+
                         if (!me->isMoving()) // Don't try to reposition while we are moving
                         {
                             // If cast flag SMARTCAST_COMBAT_MOVE is set combat movement will not be allowed unless target is outside spell range, out of mana, or LOS.

src/server/game/Entities/Unit/Unit.cpp

@@ -53,6 +53,7 @@
 #include "Player.h"
 #include "ReputationMgr.h"
 #include "ScriptMgr.h"
+#include "SmartAI.h"
 #include "Spell.h"
 #include "SpellAuraEffects.h"
 #include "SpellAuras.h"
@@ -4128,6 +4129,15 @@ void Unit::InterruptSpell(CurrentSpellTypes spellType, bool withDelayed, bool wi
             m_currentSpells[spellType] = nullptr;
             spell->SetReferencedFromCurrent(false);
         }
+
+        // SAI creatures only
+        // Start chasing victim if they are spell casters (at least one SMC spell) if interrupted/silenced.
+        if (IsCreature())
+        {
+            if (SmartAI* ai = dynamic_cast<SmartAI*>(ToCreature()->AI()))
+                if (ai->CanChaseOnInterrupt())
+                    ai->SetCombatMove(true);
+        }
     }
 }