feat(Core/Scripting): Implement SetAutoAttackAllowed() to disable aut… (#20805)

* feat(Core/Scripting): Implement SetAutoAttackAllowed() to disable autoattacks

* Update ScriptedCreature.cpp

src/server/game/AI/ScriptedAI/ScriptedCreature.cpp

@@ -195,6 +195,7 @@ ScriptedAI::ScriptedAI(Creature* creature) : CreatureAI(creature),
     _isHeroic = me->GetMap()->IsHeroic();
     _difficulty = Difficulty(me->GetMap()->GetSpawnMode());
     _invincible = false;
+    _canAutoAttack = true;
 }
 
 void ScriptedAI::AttackStartNoMove(Unit* who)
@@ -220,7 +221,8 @@ void ScriptedAI::UpdateAI(uint32 /*diff*/)
     if (!UpdateVictim())
         return;
 
-    DoMeleeAttackIfReady();
+    if (IsAutoAttackAllowed())
+        DoMeleeAttackIfReady();
 }
 
 void ScriptedAI::DamageTaken(Unit* /*attacker*/, uint32& damage, DamageEffectType /*damagetype*/, SpellSchoolMask /*damageSchoolMask*/)
@@ -739,7 +741,8 @@ void BossAI::UpdateAI(uint32 diff)
         }
     }
 
-    DoMeleeAttackIfReady();
+    if (IsAutoAttackAllowed())
+        DoMeleeAttackIfReady();
 }
 
 void BossAI::DamageTaken(Unit* attacker, uint32& damage, DamageEffectType damagetype, SpellSchoolMask damageSchoolMask)

src/server/game/AI/ScriptedAI/ScriptedCreature.h

@@ -442,10 +442,15 @@ struct ScriptedAI : public CreatureAI
     void SetInvincibility(bool apply) { _invincible = apply; };
     [[nodiscard]] bool IsInvincible() const { return _invincible; };
 
+    // Disables creature auto attacks.
+    void SetAutoAttackAllowed(bool allow) { _canAutoAttack = allow; };
+    [[nodiscard]] bool IsAutoAttackAllowed() const { return _canAutoAttack; };
+
 private:
     Difficulty _difficulty;
     bool _isHeroic;
     bool _invincible;
+    bool _canAutoAttack;
     std::unordered_set<uint32> _uniqueTimedEvents;
 };