Add Core Hounds to MC strategy (#2446)

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## Pull Request Description
<!-- Describe what this change does and why it is needed -->
PR adds actions to the Molten Core strategy to allow the bots to handle
the core hound packs better. These are the packs where all the hounds
need to die together.
The strat adds skull marks to the highest hp core hound, with a 10%
buffer so the skull doesnt rapidly change targets, allowing the bots to
make sure the hounds all die closer together


## Feature Evaluation
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- Describe the **minimum logic** required to achieve the intended
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- Describe the **processing cost** when this logic executes across many
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## How to Test the Changes
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- Step-by-step instructions to test the change.
- Any required setup (e.g. multiple players, number of bots, specific
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Go to Molten Core to the area with the Core Hounds packs (where the
first and second bosses are).
Pull a pack. The bots should automatically mark the highest core hound
with a skull.


## Impact Assessment
<!-- As a generic test, before and after measure of pmon (playerbot pmon
tick) can help you here. -->
- Does this change increase per-bot/per-tick processing or risk scaling
poorly with thousands of bots?
    - - [x] No, not at all
    - - [ ] Minimal impact (**explain below**)
    - - [ ] Moderate impact (**explain below**)



- Does this change modify default bot behavior?
    - - [x] No
    - - [ ] Yes (**explain why**)



- Does this change add new decision branches or increase maintenance
complexity?
    - - [x] No
    - - [ ] Yes (**explain below**)



## AI Assistance
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Was AI assistance used while working on this change?
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- - [x] Yes (**explain below**)
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Claude was used to generate the marking action's execute function, which
I then reviewed and modifed to improve.


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update, whose content are called within the codebase at
src/strategy/actions/FishingAction.cpp
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## Final Checklist

- - [x] Stability is not compromised.
- - [x] Performance impact is understood, tested, and acceptable.
- - [x] Added logic complexity is justified and explained.
- - [x] Any new bot dialogue lines are translated.
- - [x] Documentation updated if needed (Conf comments, WiKi commands).

## Notes for Reviewers
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src/Ai/Raid/MC/MCActionContext.h

@@ -26,6 +26,7 @@ public:
         creators["mc golemagg assist tank attack core rager"] = &RaidMcActionContext::golemagg_assist_tank_attack_core_rager;
         creators["mc majordomo shadow resistance"] = &RaidMcActionContext::majordomo_shadow_resistance;
         creators["mc ragnaros fire resistance"] = &RaidMcActionContext::ragnaros_fire_resistance;
+        creators["mc core hound mark"] = &RaidMcActionContext::core_hound_mark;
     }
 
 private:
@@ -44,6 +45,7 @@ private:
     static Action* golemagg_assist_tank_attack_core_rager(PlayerbotAI* botAI) { return new McGolemaggAssistTankAttackCoreRagerAction(botAI); }
     static Action* majordomo_shadow_resistance(PlayerbotAI* botAI) { return new BossShadowResistanceAction(botAI, "majordomo executus"); }
     static Action* ragnaros_fire_resistance(PlayerbotAI* botAI) { return new BossFireResistanceAction(botAI, "ragnaros"); }
+    static Action* core_hound_mark(PlayerbotAI* botAI) { return new McCoreHoundMarkAction(botAI); }
 };
 
 #endif

src/Ai/Raid/MC/MCActions.cpp

@@ -212,3 +212,45 @@ bool McGolemaggAssistTankAttackCoreRagerAction::Execute(Event event)
 
     return false;
 }
+
+Unit* McCoreHoundMarkAction::GetTarget()
+{
+    Unit* highestHealthHound = nullptr;
+    for (auto const& [guid, ref] : bot->GetThreatMgr().GetThreatenedByMeList())
+    {
+        Unit* unit = ref->GetOwner();
+        if (unit && unit->IsAlive() && unit->GetEntry() == NPC_CORE_HOUND)
+        {
+            if (!highestHealthHound || unit->GetHealth() > highestHealthHound->GetHealth())
+                highestHealthHound = unit;
+        }
+    }
+
+    if (!highestHealthHound)
+        return nullptr;
+
+    Group* group = bot->GetGroup();
+    ObjectGuid currentSkullGuid = group ? group->GetTargetIcon(RtiTargetValue::skullIndex) : ObjectGuid::Empty;
+    if (!currentSkullGuid.IsEmpty() && currentSkullGuid != highestHealthHound->GetGUID())
+    {
+        // Only switch skull if the new target has meaningfully more health (10% buffer) to prevent rapid re-marking
+        if (Unit* currentSkullUnit = botAI->GetUnit(currentSkullGuid))
+            if (currentSkullUnit->IsAlive() && highestHealthHound->GetHealth() <= currentSkullUnit->GetHealth() * 1.10f)
+                return nullptr;
+    }
+
+    if (currentSkullGuid.IsEmpty() || currentSkullGuid != highestHealthHound->GetGUID())
+        return highestHealthHound;
+
+    return nullptr;
+}
+
+bool McCoreHoundMarkAction::Execute(Event /*event*/)
+{
+    Unit* target = GetTarget();
+    if (!target)
+        return false;
+
+    bot->GetGroup()->SetTargetIcon(RtiTargetValue::skullIndex, bot->GetGUID(), target->GetGUID());
+    return true;
+}

src/Ai/Raid/MC/MCActions.h

@@ -64,4 +64,13 @@ public:
     bool Execute(Event event) override;
 };
 
+class McCoreHoundMarkAction : public Action
+{
+public:
+    McCoreHoundMarkAction(PlayerbotAI* botAI, std::string const name = "mc core hound mark")
+        : Action(botAI, name) {};
+    Unit* GetTarget() override;
+    bool Execute(Event event) override;
+};
+
 #endif

src/Ai/Raid/MC/MCHelpers.h

@@ -7,6 +7,9 @@ enum MoltenCoreNPCs
 {
     // Golemagg
     NPC_CORE_RAGER = 11672,
+
+    // Core Hound (trash)
+    NPC_CORE_HOUND = 11671,
 };
 enum MoltenCoreSpells
 {

src/Ai/Raid/MC/MCStrategy.cpp

@@ -71,6 +71,11 @@ void RaidMcStrategy::InitTriggers(std::vector<TriggerNode*>& triggers)
     triggers.push_back(
         new TriggerNode("mc ragnaros fire resistance",
                         { NextAction("mc ragnaros fire resistance", ACTION_RAID) }));
+
+    // Trash
+    triggers.push_back(
+        new TriggerNode("mc core hound mark",
+                        { NextAction("mc core hound mark", ACTION_RAID) }));
 }
 
 void RaidMcStrategy::InitMultipliers(std::vector<Multiplier*>& multipliers)

src/Ai/Raid/MC/MCTriggerContext.h

@@ -25,6 +25,7 @@ public:
         creators["mc golemagg is assist tank"] = &RaidMcTriggerContext::golemagg_is_assist_tank;
         creators["mc majordomo shadow resistance"] = &RaidMcTriggerContext::majordomo_shadow_resistance;
         creators["mc ragnaros fire resistance"] = &RaidMcTriggerContext::ragnaros_fire_resistance;
+        creators["mc core hound mark"] = &RaidMcTriggerContext::core_hound_mark;
     }
 
 private:
@@ -43,6 +44,7 @@ private:
     static Trigger* golemagg_is_assist_tank(PlayerbotAI* botAI) { return new McGolemaggIsAssistTankTrigger(botAI); }
     static Trigger* majordomo_shadow_resistance(PlayerbotAI* botAI) { return new BossShadowResistanceTrigger(botAI, "majordomo executus"); }
     static Trigger* ragnaros_fire_resistance(PlayerbotAI* botAI) { return new BossFireResistanceTrigger(botAI, "ragnaros"); }
+    static Trigger* core_hound_mark(PlayerbotAI* botAI) { return new McCoreHoundMarkTrigger(botAI); }
 };
 
 #endif

src/Ai/Raid/MC/MCTriggers.cpp

@@ -38,3 +38,8 @@ bool McGolemaggIsAssistTankTrigger::IsActive()
 {
     return AI_VALUE2(Unit*, "find target", "golemagg the incinerator") && PlayerbotAI::IsAssistTank(bot);
 }
+
+bool McCoreHoundMarkTrigger::IsActive()
+{
+    return PlayerbotAI::IsMainTank(bot) && AI_VALUE2(Unit*, "find target", "core hound");
+}

src/Ai/Raid/MC/MCTriggers.h

@@ -47,4 +47,11 @@ public:
     bool IsActive() override;
 };
 
+class McCoreHoundMarkTrigger : public Trigger
+{
+public:
+    McCoreHoundMarkTrigger(PlayerbotAI* botAI) : Trigger(botAI, "mc core hound mark") {}
+    bool IsActive() override;
+};
+
 #endif