fix(Scripts/TempleOfAhnQiraj): Don't let Giant Claw Tentacles autoatt… (#13550)

* fix(Scripts/TempleOfAhnQiraj): Don't let Giant Claw Tentacles autoattack while submerged and reorder digestive acid cast

* delay small claw tentacles autoattack by 2s

* Revert "delay small claw tentacles autoattack by 2s"

This reverts commit 08b9c7d62528a9147266d084768b8a7fb0deb3e0.

* change the delay

src/server/scripts/Kalimdor/TempleOfAhnQiraj/boss_cthun.cpp

@@ -452,10 +452,9 @@ struct boss_cthun : public BossAI
 
                 target->m_Events.AddEventAtOffset([target, this]()
                 {
+                    DoCast(target, SPELL_DIGESTIVE_ACID, true);
                     DoTeleportPlayer(target, STOMACH_X, STOMACH_Y, STOMACH_Z, STOMACH_O);
                     target->RemoveAurasDueToSpell(SPELL_MIND_FLAY);
-                    //Cast digestive acid on them
-                    DoCast(target, SPELL_DIGESTIVE_ACID, true);
                 }, 3800ms);
             }
 
@@ -747,6 +746,8 @@ struct npc_giant_claw_tentacle : public ScriptedAI
                 }
             }
         }
+
+        _canAttack = false;
     }
 
     void JustDied(Unit* /*killer*/) override
@@ -777,6 +778,9 @@ struct npc_giant_claw_tentacle : public ScriptedAI
         {
             DoCastSelf(SPELL_THRASH);
             context.Repeat(10s);
+        }).Schedule(3s, [this](TaskContext /*context*/)
+        {
+            _canAttack = true;
         });
 
         ScheduleMeleeCheck();
@@ -825,6 +829,7 @@ struct npc_giant_claw_tentacle : public ScriptedAI
         me->SetUnitFlag(UNIT_FLAG_NOT_SELECTABLE | UNIT_FLAG_NON_ATTACKABLE);
 
         _scheduler.CancelAll();
+        _canAttack = false;
 
         _scheduler.Schedule(5s, [this](TaskContext /*task*/)
             {
@@ -851,6 +856,11 @@ struct npc_giant_claw_tentacle : public ScriptedAI
 
             ScheduleMeleeCheck();
         }
+
+        _scheduler.Schedule(3s, [this](TaskContext /*context*/)
+        {
+            _canAttack = true;
+        });
     }
 
     void UpdateAI(uint32 diff) override
@@ -861,12 +871,16 @@ struct npc_giant_claw_tentacle : public ScriptedAI
 
         _scheduler.Update(diff);
 
+        if (_canAttack)
+        {
             DoMeleeAttackIfReady();
         }
+    }
 
 private:
     TaskScheduler _scheduler;
     ObjectGuid _portalGUID;
+    bool _canAttack;
 };
 
 struct npc_giant_eye_tentacle : public ScriptedAI