fix(Scripts/SunwellPlateau): Make Twin special abilities target one of the highest 6 in threat of the other twin (#21964)

Author: Tereneckla

src/server/scripts/EasternKingdoms/SunwellPlateau/boss_eredar_twins.cpp

@@ -119,7 +119,7 @@ struct boss_sacrolash : public BossAI
 
             scheduler.CancelGroup(GROUP_SPECIAL_ABILITY);
             ScheduleTimedEvent(20s, [&] {
-                Unit* target = SelectTarget(SelectTargetMethod::MaxThreat, 1, 100.0f);
+                Unit* target = SelectTarget(SelectTargetMethod::Random, 0, 100.0f, true, false);
                 if (!target)
                     target = me->GetVictim();
 
@@ -153,7 +153,14 @@ struct boss_sacrolash : public BossAI
         }, 8s, 12s);
 
         scheduler.Schedule(36s, GROUP_SPECIAL_ABILITY, [this](TaskContext context) {
-            Unit* target = SelectTarget(SelectTargetMethod::MaxThreat, 1, 100.0f);
+            Unit* target = nullptr;
+            if (Creature* alythess = instance->GetCreature(DATA_ALYTHESS))
+            {
+                std::list<Unit*> targets;
+                alythess->AI()->SelectTargetList(targets, 6, SelectTargetMethod::MaxThreat, 0, 100.0f, true, false);
+                if (!targets.empty())
+                    target = Acore::Containers::SelectRandomContainerElement(targets);
+            }
             if (!target)
                 target = me->GetVictim();
             Talk(EMOTE_SHADOW_NOVA, target);
@@ -244,7 +251,7 @@ struct boss_alythess : public BossAI
             }, 8s, 10s);
 
             ScheduleTimedEvent(20s, 26s, [&] {
-                Unit* target = SelectTarget(SelectTargetMethod::MaxThreat, 1, 100.0f);
+                Unit* target = SelectTarget(SelectTargetMethod::Random, 0, 100.0f, true, false);
                 if (!target)
                     target = me->GetVictim();
                 DoCast(target, SPELL_SHADOW_NOVA);
@@ -280,7 +287,14 @@ struct boss_alythess : public BossAI
         }, 10s, 15s);
 
         scheduler.Schedule(20s, GROUP_SPECIAL_ABILITY, [this](TaskContext context) {
-            Unit* target = SelectTarget(SelectTargetMethod::MaxThreat, 1, 100.0f);
+            Unit* target = nullptr;
+            if (Creature* sacrolash = instance->GetCreature(DATA_SACROLASH))
+            {
+                std::list<Unit*> targets;
+                sacrolash->AI()->SelectTargetList(targets, 6, SelectTargetMethod::MaxThreat, 0, 100.0f, true, false);
+                if (!targets.empty())
+                    target = Acore::Containers::SelectRandomContainerElement(targets);
+            }
             if (!target)
                 target = me->GetVictim();
             Talk(EMOTE_CONFLAGRATION, target);