fix(Scripts/Mechanar): Few updates to Sepethrea (#15500)

---------

Co-authored-by: offl <offl@users.noreply.github.com>
Co-authored-by: Gultask <100873791+Gultask@users.noreply.github.com>

data/sql/updates/pending_db_world/rev_1679277561975731600.sql

@@ -0,0 +1,10 @@
+--
+DELETE FROM `conditions` WHERE `SourceTypeOrReferenceId` = 13 AND `SourceEntry` = 35277;
+INSERT INTO `conditions` (`SourceTypeOrReferenceId`,`SourceGroup`,`SourceEntry`,`SourceId`,`ElseGroup`,`ConditionTypeOrReference`,`ConditionTarget`,`ConditionValue1`,`ConditionValue2`,`ConditionValue3`,`NegativeCondition`,`ErrorType`,`ErrorTextId`,`ScriptName`,`Comment`) VALUES
+(13,1,35277,0,0,31,0,3,20481,0,0,0,0,'','Group 0: Spell \'Quell Raging Flames\' (Effect 0) targets creature \'Raging Flames\'');
+
+-- They're not immune even to fire, only to all mechanics
+UPDATE `creature_template` SET `ScriptName` = 'npc_raging_flames' WHERE `entry` = 20481;
+UPDATE `creature_template` SET `mechanic_immune_mask` = 617299803, `spell_school_immune_mask` = 0 WHERE `entry` IN (20481,21538);
+
+UPDATE `spell_dbc` SET `ProcTypeMask` = 20, `ProcChance` = 100, `BaseLevel` = 70, `SpellLevel` = 70, `Effect_1` = 6, `ImplicitTargetA_1` = 1, `EffectAura_1` = 42, `EffectTriggerSpell_1` = 45195 WHERE `Id` = 45196;

src/server/scripts/Outland/TempestKeep/Mechanar/boss_nethermancer_sepethrea.cpp

@@ -30,10 +30,18 @@ enum Says
 
 enum Spells
 {
-    SPELL_SUMMON_RAGIN_FLAMES      = 35275,
+    SPELL_FROST_ATTACK             = 45196, // This is definitely spell added in TBC but did it replaced both 35264 and 39086 or only normal version?
-    SPELL_FROST_ATTACK             = 35263,
+    SPELL_SUMMON_RAGING_FLAMES     = 35275,
+    SPELL_QUELL_RAGING_FLAMES      = 35277,
     SPELL_ARCANE_BLAST             = 35314,
     SPELL_DRAGONS_BREATH           = 35250,
+
+    // Raging Flames
+    SPELL_RAGING_FLAMES_DUMMY      = 35274, // NYI, no clue what it can do
+    SPELL_RAGING_FLAMES_AREA_AURA  = 35281,
+    SPELL_INVIS_STEALTH_DETECTION  = 18950,
+    SPELL_INFERNO                  = 35268,
+    SPELL_INFERNO_DAMAGE           = 35283
 };
 
 struct boss_nethermancer_sepethrea : public BossAI
@@ -54,14 +62,18 @@ struct boss_nethermancer_sepethrea : public BossAI
         {
             DoCastVictim(SPELL_FROST_ATTACK);
             context.Repeat(8s);
-        }).Schedule(14s, [this](TaskContext context)
+        }).Schedule(15s, 25s, [this](TaskContext context)
         {
             DoCastVictim(SPELL_ARCANE_BLAST);
-            context.Repeat(12s);
+            if (me->GetVictim())
-        }).Schedule(18s, [this](TaskContext context)
+            {
+                DoModifyThreatByPercent(me->GetVictim(), -50);
+            }
+            context.Repeat();
+        }).Schedule(20s, 30s, [this](TaskContext context)
         {
             DoCastVictim(SPELL_DRAGONS_BREATH);
-            context.Repeat(16s);
+            context.Repeat(25s, 35s);
             if (roll_chance_i(50))
             {
                 Talk(SAY_DRAGONS_BREATH);
@@ -69,7 +81,14 @@ struct boss_nethermancer_sepethrea : public BossAI
         });
 
         Talk(SAY_AGGRO);
-        DoCastSelf(SPELL_SUMMON_RAGIN_FLAMES, true);
+        DoCastSelf(SPELL_SUMMON_RAGING_FLAMES, true);
+    }
+
+    void EnterEvadeMode(EvadeReason why) override
+    {
+        // Fails probably because target is in evade mode (yes, she kills them on evade too). We'll kill them directly in their script for now
+        DoCastSelf(SPELL_QUELL_RAGING_FLAMES, true);
+        ScriptedAI::EnterEvadeMode(why);
     }
 
     void JustSummoned(Creature* summon) override
@@ -95,34 +114,56 @@ struct boss_nethermancer_sepethrea : public BossAI
     {
         _JustDied();
         Talk(SAY_DEATH);
+        DoCastSelf(SPELL_QUELL_RAGING_FLAMES, true);
     }
 };
 
-enum raginFlames
+struct npc_raging_flames : public ScriptedAI
 {
-    SPELL_INFERNO                   = 35268,
+    npc_raging_flames(Creature* creature) : ScriptedAI(creature) { }
-    SPELL_FIRE_TAIL                 = 35278,
-    SPELL_INFERNO_DAMAGE            = 35283,
 
-    EVENT_SPELL_FIRE_TAIL           = 1,
+    void InitializeAI() override
-    EVENT_SPELL_INFERNO             = 2
+    {
-};
+        me->SetCorpseDelay(20);
+    }
 
-struct npc_ragin_flames : public ScriptedAI
+    // It's more tricky actually
-{
+    void FixateRandomTarget()
-    npc_ragin_flames(Creature* creature) : ScriptedAI(creature) { }
+    {
+        me->GetThreatMgr().ClearAllThreat();
 
-    EventMap events;
+        if (TempSummon* summon = me->ToTempSummon())
+            if (Creature* summoner = summon->GetSummonerCreatureBase())
+                if (summoner->IsAIEnabled)
+                    if (Unit* target = summoner->AI()->SelectTarget(SelectTargetMethod::Random, 1, 100.0f, true, false))
+                        me->AddThreat(target, 1000000.0f);
+    }
+
+    void IsSummonedBy(WorldObject* /*summoner*/) override
+    {
+        DoZoneInCombat();
+        DoCastSelf(SPELL_RAGING_FLAMES_AREA_AURA);
+        DoCastSelf(SPELL_INVIS_STEALTH_DETECTION);
+
+        FixateRandomTarget();
+
+        _scheduler.Schedule(15s, 25s, [this](TaskContext task)
+        {
+            DoCastSelf(SPELL_INFERNO);
+            FixateRandomTarget();
+
+            task.Repeat(20s, 30s);
+        });
+    }
 
     void Reset() override
     {
-        me->ApplySpellImmune(0, IMMUNITY_DAMAGE, SPELL_SCHOOL_MASK_ALL, true);
+        _scheduler.CancelAll();
     }
 
-    void JustEngagedWith(Unit*) override
+    void EnterEvadeMode(EvadeReason /*why*/) override
     {
-        events.ScheduleEvent(EVENT_SPELL_FIRE_TAIL, 500);
+        me->KillSelf();
-        events.ScheduleEvent(EVENT_SPELL_INFERNO, urand(10000, 20000));
     }
 
     void UpdateAI(uint32 diff) override
@@ -130,26 +171,13 @@ struct npc_ragin_flames : public ScriptedAI
         if (!UpdateVictim())
             return;
 
-        events.Update(diff);
+        _scheduler.Update(diff);
-        switch (events.ExecuteEvent())
-        {
-        case EVENT_SPELL_INFERNO:
-            if (me->IsWithinCombatRange(me->GetVictim(), 5.0f))
-            {
-                me->CastSpell(me, SPELL_INFERNO, true);
-                events.ScheduleEvent(EVENT_SPELL_INFERNO, 20000);
-            }
-            else
-                events.ScheduleEvent(EVENT_SPELL_INFERNO, 1000);
-            break;
-        case EVENT_SPELL_FIRE_TAIL:
-            me->CastSpell(me, SPELL_FIRE_TAIL, true);
-            events.ScheduleEvent(EVENT_SPELL_FIRE_TAIL, 500);
-            break;
-        }
 
         DoMeleeAttackIfReady();
     }
+
+private:
+    TaskScheduler _scheduler;
 };
 
 class spell_ragin_flames_inferno : public AuraScript
@@ -170,6 +198,6 @@ class spell_ragin_flames_inferno : public AuraScript
 void AddSC_boss_nethermancer_sepethrea()
 {
     RegisterMechanarCreatureAI(boss_nethermancer_sepethrea);
-    RegisterMechanarCreatureAI(npc_ragin_flames);
+    RegisterMechanarCreatureAI(npc_raging_flames);
     RegisterSpellScript(spell_ragin_flames_inferno);
 }