Small fixes to naxxramas strategy (#2201)

# Pull Request

Small fixes to naxxramas strategy

---

## Complexity & Impact

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

Does this change increase per-bot or per-tick processing?
- - [x] No
- - [ ] Yes (**describe and justify impact**)

Could this logic scale poorly under load?
- - [x] No
- - [ ] Yes (**explain why**)
---

## Defaults & Configuration

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

If this introduces more advanced or AI-heavy logic:
- - [x] Lightweight mode remains the default
- - [ ] More complex behavior is optional and thereby configurable
---

## AI Assistance

Was AI assistance (e.g. ChatGPT or similar tools) used while working on
this change?
- - [x] No
- - [ ] Yes (**explain below**)

If yes, please specify:

Copilot CLI to code review

---

## Final Checklist

- - [x] Stability is not compromised
- - [x] Performance impact is understood, tested, and acceptable
- - [x] Added logic complexity is justified and explained
- - [x] Documentation updated if needed

src/Ai/Base/Actions/FollowActions.cpp

@@ -5,18 +5,211 @@
 
 #include "FollowActions.h"
 
+#include <algorithm>
+#include <cmath>
+#include <array>
+
 #include "Event.h"
 #include "Formations.h"
 #include "LastMovementValue.h"
+#include "MotionMaster.h"
 #include "PlayerbotAI.h"
 #include "Playerbots.h"
 #include "ServerFacade.h"
+#include "Transport.h"
+#include "Map.h"
+
+namespace
+{
+    Transport* GetTransportForPosTolerant(Map* map, WorldObject* ref, uint32 phaseMask, float x, float y, float z)
+    {
+        if (!map || !ref)
+            return nullptr;
+
+        std::array<float, 4> const probes = { z, z + 0.5f, z + 1.5f, z - 0.5f };
+        for (float const pz : probes)
+        {
+            if (Transport* t = map->GetTransportForPos(phaseMask, x, y, pz, ref))
+                return t;
+        }
+
+        return nullptr;
+    }
+
+    // Attempts to find a point on the leader's transport that is closer to the bot,
+    // by probing along the segment from master -> bot and returning the last point
+    // that is still detected as being on the expected transport.
+    bool FindBoardingPointOnTransport(Map* map, Transport* expectedTransport, WorldObject* ref,
+        float masterX, float masterY, float masterZ,
+        float botX, float botY, float botZ,
+        float& outX, float& outY, float& outZ)
+    {
+        if (!map || !expectedTransport || !ref)
+            return false;
+
+        uint32 const phaseMask = ref->GetPhaseMask();
+
+        // Ensure master is actually detected on that transport (tolerant).
+        if (GetTransportForPosTolerant(map, ref, phaseMask, masterX, masterY, masterZ) != expectedTransport)
+            return false;
+
+        // The raycast in GetTransportForPos starts at (z + 2). Probe with a safe Z.
+        float const probeZ = std::max(masterZ, botZ);
+
+        // Adaptive step count: small platforms need tighter sampling.
+        float const dx2 = botX - masterX;
+        float const dy2 = botY - masterY;
+        float const dist2d = std::sqrt(dx2 * dx2 + dy2 * dy2);
+        int32 const steps = std::clamp(static_cast<int32>(dist2d / 0.75f), 10, 28);
+
+        float const dx = (botX - masterX) / static_cast<float>(steps);
+        float const dy = (botY - masterY) / static_cast<float>(steps);
+
+        // Master must actually be on the expected transport for this to work.
+        if (map->GetTransportForPos(ref->GetPhaseMask(), masterX, masterY, probeZ, ref) != expectedTransport)
+            return false;
+
+        float lastX = masterX;
+        float lastY = masterY;
+        bool found = false;
+
+        for (int32 i = 1; i <= steps; ++i)
+        {
+            float const px = masterX + dx * i;
+            float const py = masterY + dy * i;
+
+            Transport* const t = GetTransportForPosTolerant(map, ref, phaseMask, px, py, probeZ);
+            if (t != expectedTransport)
+                break;
+
+            lastX = px;
+            lastY = py;
+            found = true;
+        }
+
+        if (!found)
+            return false;
+
+        outX = lastX;
+        outY = lastY;
+        outZ = masterZ; // keep deck-level Z to encourage stepping onto the platform/boat
+        return true;
+    }
+}
 
 bool FollowAction::Execute(Event /*event*/)
 {
     Formation* formation = AI_VALUE(Formation*, "formation");
     std::string const target = formation->GetTargetName();
 
+    // Transport handling for moving transports only (boats/zeppelins).
+    Player* master = botAI->GetMaster();
+    if (master && master->IsInWorld() && bot->IsInWorld() && bot->GetMapId() == master->GetMapId())
+    {
+        Map* map = master->GetMap();
+        uint32 const mapId = bot->GetMapId();
+        Transport* transport = nullptr;
+        bool masterOnTransport = false;
+
+        if (master->GetTransport())
+        {
+            transport = master->GetTransport();
+            masterOnTransport = true;
+        }
+        else if (map)
+        {
+            transport = GetTransportForPosTolerant(map, master, master->GetPhaseMask(),
+                master->GetPositionX(), master->GetPositionY(), master->GetPositionZ());
+            masterOnTransport = (transport != nullptr);
+        }
+
+        // Ignore static transports (elevators/trams): only keep boats/zeppelins here.
+        if (transport && transport->IsStaticTransport())
+            transport = nullptr;
+
+        if (transport && map && bot->GetTransport() != transport)
+        {
+            float const botProbeZ = std::max(bot->GetPositionZ(), transport->GetPositionZ());
+            Transport* botSurfaceTransport = GetTransportForPosTolerant(map, bot, bot->GetPhaseMask(),
+                bot->GetPositionX(), bot->GetPositionY(), botProbeZ);
+
+            if (botSurfaceTransport == transport)
+            {
+                transport->AddPassenger(bot, true);
+                bot->StopMovingOnCurrentPos();
+                return true;
+            }
+
+            float const boardingAssistDistance = 60.0f;
+            float const dist2d = ServerFacade::instance().GetDistance2d(bot, master);
+            bool const inAssist = ServerFacade::instance().IsDistanceLessOrEqualThan(dist2d, boardingAssistDistance);
+
+            if (inAssist)
+            {
+                float destX = masterOnTransport ? master->GetPositionX() : transport->GetPositionX();
+                float destY = masterOnTransport ? master->GetPositionY() : transport->GetPositionY();
+                float destZ = masterOnTransport ? master->GetPositionZ() : transport->GetPositionZ();
+                float edgeX = 0.0f;
+                float edgeY = 0.0f;
+                float edgeZ = 0.0f;
+
+                if (masterOnTransport &&
+                    FindBoardingPointOnTransport(map, transport, master,
+                        master->GetPositionX(), master->GetPositionY(), master->GetPositionZ(),
+                        bot->GetPositionX(), bot->GetPositionY(), bot->GetPositionZ(),
+                        edgeX, edgeY, edgeZ))
+                {
+                    destX = edgeX;
+                    destY = edgeY;
+                    destZ = edgeZ;
+                }
+
+                MovementPriority const priority = botAI->GetState() == BOT_STATE_COMBAT
+                    ? MovementPriority::MOVEMENT_COMBAT
+                    : MovementPriority::MOVEMENT_NORMAL;
+
+                bool const movingAllowed = IsMovingAllowed(mapId, destX, destY, destZ);
+                bool const dupMove = IsDuplicateMove(mapId, destX, destY, destZ);
+                bool const waiting = IsWaitingForLastMove(priority);
+
+                if (movingAllowed && !dupMove && !waiting)
+                {
+                    if (bot->IsSitState())
+                        bot->SetStandState(UNIT_STAND_STATE_STAND);
+
+                    if (bot->IsNonMeleeSpellCast(true))
+                    {
+                        bot->CastStop();
+                        botAI->InterruptSpell();
+                    }
+
+                    if (MotionMaster* mm = bot->GetMotionMaster())
+                    {
+                        mm->MovePoint(
+                            /*id*/ 0,
+                            /*coords*/ destX, destY, destZ,
+                            /*forcedMovement*/ FORCED_MOVEMENT_NONE,
+                            /*speed*/ 0.0f,
+                            /*orientation*/ 0.0f,
+                            /*generatePath*/ false,
+                            /*forceDestination*/ false);
+                    }
+                    else
+                        return false;
+
+                    float delay = 1000.0f * MoveDelay(bot->GetExactDist(destX, destY, destZ));
+                    delay = std::clamp(delay, 0.0f, static_cast<float>(sPlayerbotAIConfig.maxWaitForMove));
+
+                    AI_VALUE(LastMovement&, "last movement")
+                        .Set(mapId, destX, destY, destZ, bot->GetOrientation(), delay, priority);
+                    ClearIdleState();
+                    return true;
+                }
+            }
+        }
+    }
+    // end unified transport handling
+
     bool moved = false;
     if (!target.empty())
     {

src/Ai/Raid/Naxxramas/Action/RaidNaxxActions.h

@@ -37,10 +37,10 @@ public:
     uint32 GetCurrWaypoint() override;
 };
 
-class GrobblulusMoveCenterAction : public MoveInsideAction
+class GrobbulusMoveCenterAction : public MoveInsideAction
 {
 public:
-    GrobblulusMoveCenterAction(PlayerbotAI* ai) : MoveInsideAction(ai, 3281.23f, -3310.38f, 5.0f) {}
+    GrobbulusMoveCenterAction(PlayerbotAI* ai) : MoveInsideAction(ai, 3281.23f, -3310.38f, 5.0f) {}
 };
 
 class GrobbulusMoveAwayAction : public MovementAction
@@ -173,26 +173,26 @@ private:
     RazuviousBossHelper helper;
 };
 
-class HorsemanAttractAlternativelyAction : public AttackAction
+class FourHorsemenAttractAlternativelyAction : public AttackAction
 {
 public:
-    HorsemanAttractAlternativelyAction(PlayerbotAI* ai) : AttackAction(ai, "horseman attract alternatively"), helper(ai)
+    FourHorsemenAttractAlternativelyAction(PlayerbotAI* ai) : AttackAction(ai, "four horsemen attract alternatively"), helper(ai)
     {
     }
     bool Execute(Event event) override;
 
 protected:
-    FourhorsemanBossHelper helper;
+    FourHorsemenBossHelper helper;
 };
 
-class HorsemanAttactInOrderAction : public AttackAction
+class FourHorsemenAttackInOrderAction : public AttackAction
 {
 public:
-    HorsemanAttactInOrderAction(PlayerbotAI* ai) : AttackAction(ai, "horseman attact in order"), helper(ai) {}
+    FourHorsemenAttackInOrderAction(PlayerbotAI* ai) : AttackAction(ai, "four horsemen attack in order"), helper(ai) {}
     bool Execute(Event event) override;
 
 protected:
-    FourhorsemanBossHelper helper;
+    FourHorsemenBossHelper helper;
 };
 
 // class SapphironGroundMainTankPositionAction : public MovementAction

src/Ai/Raid/Naxxramas/Action/RaidNaxxActions_Anubrekhan.cpp

@@ -1,7 +1,6 @@
-#include "RaidNaxxActions.h"
-
 #include "ObjectGuid.h"
 #include "Playerbots.h"
+#include "RaidNaxxActions.h"
 
 bool AnubrekhanChooseTargetAction::Execute(Event /*event*/)
 {
@@ -66,13 +65,10 @@ bool AnubrekhanPositionAction::Execute(Event /*event*/)
         {
             uint32 nearest = FindNearestWaypoint();
             uint32 next_point;
-            if (inPhase)
             next_point = (nearest + 1) % intervals;
-            else
-                next_point = nearest;
 
-            return MoveTo(bot->GetMapId(), waypoints[next_point].first, waypoints[next_point].second, bot->GetPositionZ(), false, false,
-                          false, false, MovementPriority::MOVEMENT_COMBAT);
+            return MoveTo(bot->GetMapId(), waypoints[next_point].first, waypoints[next_point].second,
+                          bot->GetPositionZ(), false, false, false, false, MovementPriority::MOVEMENT_COMBAT);
         }
         else
             return MoveInside(533, 3272.49f, -3476.27f, bot->GetPositionZ(), 3.0f, MovementPriority::MOVEMENT_COMBAT);

src/Ai/Raid/Naxxramas/Action/RaidNaxxActions_FourHorsemen.cpp

@@ -2,7 +2,7 @@
 
 #include "Playerbots.h"
 
-bool HorsemanAttractAlternativelyAction::Execute(Event /*event*/)
+bool FourHorsemenAttractAlternativelyAction::Execute(Event /*event*/)
 {
     if (!helper.UpdateBossAI())
         return false;
@@ -13,13 +13,13 @@ bool HorsemanAttractAlternativelyAction::Execute(Event /*event*/)
         return true;
 
     Unit* attackTarget = helper.CurrentAttackTarget();
-    if (context->GetValue<Unit*>("current target")->Get() != attackTarget)
+    if (attackTarget && context->GetValue<Unit*>("current target")->Get() != attackTarget)
         return Attack(attackTarget);
 
     return false;
 }
 
-bool HorsemanAttactInOrderAction::Execute(Event /*event*/)
+bool FourHorsemenAttackInOrderAction::Execute(Event /*event*/)
 {
     if (!helper.UpdateBossAI())
         return false;

src/Ai/Raid/Naxxramas/Action/RaidNaxxActions_Sapphiron.cpp

@@ -70,7 +70,6 @@ bool SapphironFlightPositionAction::MoveToNearestIcebolt()
     if (!group)
         return false;
 
-    Group::MemberSlotList const& slots = group->GetMemberSlots();
     Player* playerWithIcebolt = nullptr;
     float minDistance;
     for (GroupReference* ref = group->GetFirstMember(); ref; ref = ref->next())

src/Ai/Raid/Naxxramas/Action/RaidNaxxActions_Thaddius.cpp

@@ -13,7 +13,7 @@ bool ThaddiusAttackNearestPetAction::isUseful()
         return false;
 
     Unit* target = helper.GetNearestPet();
-    if (!bot->IsWithinDistInMap(target, 50.0f))
+    if (!target || !bot->IsWithinDistInMap(target, 50.0f))
         return false;
 
     return true;
@@ -22,7 +22,7 @@ bool ThaddiusAttackNearestPetAction::isUseful()
 bool ThaddiusAttackNearestPetAction::Execute(Event /*event*/)
 {
     Unit* target = helper.GetNearestPet();
-    if (!bot->IsWithinLOSInMap(target))
+    if (!target || !bot->IsWithinLOSInMap(target))
         return MoveTo(target, 0, MovementPriority::MOVEMENT_COMBAT);
 
     if (AI_VALUE(Unit*, "current target") != target)

src/Ai/Raid/Naxxramas/Multiplier/RaidNaxxMultipliers.cpp

@@ -245,7 +245,7 @@ float AnubrekhanGenericMultiplier::GetValue(Action* action)
     return 1.0f;
 }
 
-float FourhorsemanGenericMultiplier::GetValue(Action* action)
+float FourHorsemenGenericMultiplier::GetValue(Action* action)
 {
     Unit* boss = AI_VALUE2(Unit*, "find target", "sir zeliek");
     if (!boss)

src/Ai/Raid/Naxxramas/Multiplier/RaidNaxxMultipliers.h

@@ -1,6 +1,6 @@
 
-#ifndef _PLAYERRBOT_RAIDNAXXMULTIPLIERS_H
-#define _PLAYERRBOT_RAIDNAXXMULTIPLIERS_H
+#ifndef _PLAYERBOT_RAIDNAXXMULTIPLIERS_H
+#define _PLAYERBOT_RAIDNAXXMULTIPLIERS_H
 
 #include "Multiplier.h"
 #include "RaidNaxxBossHelper.h"
@@ -84,10 +84,10 @@ public:
     virtual float GetValue(Action* action);
 };
 
-class FourhorsemanGenericMultiplier : public Multiplier
+class FourHorsemenGenericMultiplier : public Multiplier
 {
 public:
-    FourhorsemanGenericMultiplier(PlayerbotAI* ai) : Multiplier(ai, "fourhorseman generic") {}
+    FourHorsemenGenericMultiplier(PlayerbotAI* ai) : Multiplier(ai, "four horsemen generic") {}
 
 public:
     virtual float GetValue(Action* action);

src/Ai/Raid/Naxxramas/RaidNaxxActionContext.h

@@ -31,8 +31,8 @@ public:
         creators["razuvious use obedience crystal"] = &RaidNaxxActionContext::razuvious_use_obedience_crystal;
         creators["razuvious target"] = &RaidNaxxActionContext::razuvious_target;
 
-        creators["horseman attract alternatively"] = &RaidNaxxActionContext::horseman_attract_alternatively;
-        creators["horseman attack in order"] = &RaidNaxxActionContext::horseman_attack_in_order;
+        creators["four horsemen attract alternatively"] = &RaidNaxxActionContext::four_horsemen_attract_alternatively;
+        creators["four horsemen attack in order"] = &RaidNaxxActionContext::four_horsemen_attack_in_order;
 
         creators["sapphiron ground position"] = &RaidNaxxActionContext::sapphiron_ground_position;
         creators["sapphiron flight position"] = &RaidNaxxActionContext::sapphiron_flight_position;
@@ -56,7 +56,7 @@ public:
 private:
     static Action* go_behind_the_boss(PlayerbotAI* ai) { return new GrobbulusGoBehindAction(ai); }
     static Action* rotate_grobbulus(PlayerbotAI* ai) { return new GrobbulusRotateAction(ai); }
-    static Action* grobbulus_move_center(PlayerbotAI* ai) { return new GrobblulusMoveCenterAction(ai); }
+    static Action* grobbulus_move_center(PlayerbotAI* ai) { return new GrobbulusMoveCenterAction(ai); }
     static Action* grobbulus_move_away(PlayerbotAI* ai) { return new GrobbulusMoveAwayAction(ai); }
     //static Action* heigan_dance_melee(PlayerbotAI* ai) { return new HeiganDanceMeleeAction(ai); }
     //static Action* heigan_dance_ranged(PlayerbotAI* ai) { return new HeiganDanceRangedAction(ai); }
@@ -70,11 +70,8 @@ private:
     {
         return new RazuviousUseObedienceCrystalAction(ai);
     }
-    static Action* horseman_attract_alternatively(PlayerbotAI* ai)
-    {
-        return new HorsemanAttractAlternativelyAction(ai);
-    }
-    static Action* horseman_attack_in_order(PlayerbotAI* ai) { return new HorsemanAttactInOrderAction(ai); }
+    static Action* four_horsemen_attract_alternatively(PlayerbotAI* ai) { return new FourHorsemenAttractAlternativelyAction(ai); }
+    static Action* four_horsemen_attack_in_order(PlayerbotAI* ai) { return new FourHorsemenAttackInOrderAction(ai); }
     // static Action* sapphiron_ground_main_tank_position(PlayerbotAI* ai) { return new
     // SapphironGroundMainTankPositionAction(ai); }
     static Action* sapphiron_ground_position(PlayerbotAI* ai) { return new SapphironGroundPositionAction(ai); }

src/Ai/Raid/Naxxramas/RaidNaxxTriggerContext.h

@@ -30,8 +30,8 @@ public:
         creators["razuvious tank"] = &RaidNaxxTriggerContext::razuvious_tank;
         creators["razuvious nontank"] = &RaidNaxxTriggerContext::razuvious_nontank;
 
-        creators["horseman attractors"] = &RaidNaxxTriggerContext::horseman_attractors;
-        creators["horseman except attractors"] = &RaidNaxxTriggerContext::horseman_except_attractors;
+        creators["four horsemen attractors"] = &RaidNaxxTriggerContext::four_horsemen_attractors;
+        creators["four horsemen except attractors"] = &RaidNaxxTriggerContext::four_horsemen_except_attractors;
 
         creators["sapphiron ground"] = &RaidNaxxTriggerContext::sapphiron_ground;
         creators["sapphiron flight"] = &RaidNaxxTriggerContext::sapphiron_flight;
@@ -66,8 +66,8 @@ private:
     static Trigger* razuvious_tank(PlayerbotAI* ai) { return new RazuviousTankTrigger(ai); }
     static Trigger* razuvious_nontank(PlayerbotAI* ai) { return new RazuviousNontankTrigger(ai); }
 
-    static Trigger* horseman_attractors(PlayerbotAI* ai) { return new HorsemanAttractorsTrigger(ai); }
-    static Trigger* horseman_except_attractors(PlayerbotAI* ai) { return new HorsemanExceptAttractorsTrigger(ai); }
+    static Trigger* four_horsemen_attractors(PlayerbotAI* ai) { return new FourHorsemenAttractorsTrigger(ai); }
+    static Trigger* four_horsemen_except_attractors(PlayerbotAI* ai) { return new FourHorsemenExceptAttractorsTrigger(ai); }
 
     static Trigger* sapphiron_ground(PlayerbotAI* ai) { return new SapphironGroundTrigger(ai); }
     static Trigger* sapphiron_flight(PlayerbotAI* ai) { return new SapphironFlightTrigger(ai); }

src/Ai/Raid/Naxxramas/Strategy/RaidNaxxStrategy.cpp

@@ -97,13 +97,13 @@ void RaidNaxxStrategy::InitTriggers(std::vector<TriggerNode*>& triggers)
         { NextAction("razuvious target", ACTION_RAID + 1) }
     ));
 
-    // four horseman
-    triggers.push_back(new TriggerNode("horseman attractors",
-        { NextAction("horseman attract alternatively", ACTION_RAID + 1) }
+    // four horsemen
+    triggers.push_back(new TriggerNode("four horsemen attractors",
+        { NextAction("four horsemen attract alternatively", ACTION_RAID + 1) }
     ));
 
-    triggers.push_back(new TriggerNode("horseman except attractors",
-        { NextAction("horseman attack in order", ACTION_RAID + 1) }
+    triggers.push_back(new TriggerNode("four horsemen except attractors",
+        { NextAction("four horsemen attack in order", ACTION_RAID + 1) }
     ));
 
     // sapphiron
@@ -150,7 +150,7 @@ void RaidNaxxStrategy::InitMultipliers(std::vector<Multiplier*>& multipliers)
     multipliers.push_back(new InstructorRazuviousGenericMultiplier(botAI));
     multipliers.push_back(new KelthuzadGenericMultiplier(botAI));
     multipliers.push_back(new AnubrekhanGenericMultiplier(botAI));
-    multipliers.push_back(new FourhorsemanGenericMultiplier(botAI));
+    multipliers.push_back(new FourHorsemenGenericMultiplier(botAI));
     // multipliers.push_back(new GothikGenericMultiplier(botAI));
     multipliers.push_back(new GluthGenericMultiplier(botAI));
 }

src/Ai/Raid/Naxxramas/Trigger/RaidNaxxTriggers.cpp

@@ -114,7 +114,7 @@ bool RazuviousNontankTrigger::IsActive()
     return helper.UpdateBossAI() && !(bot->getClass() == CLASS_PRIEST);
 }
 
-bool HorsemanAttractorsTrigger::IsActive()
+bool FourHorsemenAttractorsTrigger::IsActive()
 {
     if (!helper.UpdateBossAI())
         return false;
@@ -122,7 +122,7 @@ bool HorsemanAttractorsTrigger::IsActive()
     return helper.IsAttracter(bot);
 }
 
-bool HorsemanExceptAttractorsTrigger::IsActive()
+bool FourHorsemenExceptAttractorsTrigger::IsActive()
 {
     if (!helper.UpdateBossAI())
         return false;

src/Ai/Raid/Naxxramas/Trigger/RaidNaxxTriggers.h

@@ -186,24 +186,24 @@ private:
     ThaddiusBossHelper helper;
 };
 
-class HorsemanAttractorsTrigger : public Trigger
+class FourHorsemenAttractorsTrigger : public Trigger
 {
 public:
-    HorsemanAttractorsTrigger(PlayerbotAI* ai) : Trigger(ai, "fourhorsemen attractors"), helper(ai) {}
+    FourHorsemenAttractorsTrigger(PlayerbotAI* ai) : Trigger(ai, "four horsemen attractors"), helper(ai) {}
     bool IsActive() override;
 
 private:
-    FourhorsemanBossHelper helper;
+    FourHorsemenBossHelper helper;
 };
 
-class HorsemanExceptAttractorsTrigger : public Trigger
+class FourHorsemenExceptAttractorsTrigger : public Trigger
 {
 public:
-    HorsemanExceptAttractorsTrigger(PlayerbotAI* ai) : Trigger(ai, "fourhorsemen except attractors"), helper(ai) {}
+    FourHorsemenExceptAttractorsTrigger(PlayerbotAI* ai) : Trigger(ai, "four horsemen except attractors"), helper(ai) {}
     bool IsActive() override;
 
 private:
-    FourhorsemanBossHelper helper;
+    FourHorsemenBossHelper helper;
 };
 
 class SapphironGroundTrigger : public Trigger

src/Ai/Raid/Naxxramas/Util/RaidNaxxBossHelper.h

@@ -202,7 +202,7 @@ public:
     }
     bool FindPosToAvoidChill(std::vector<float>& dest)
     {
-        Aura* aura = NaxxSpellIds::GetAnyAura(bot, {NaxxSpellIds::Chill25});
+        Aura* aura = NaxxSpellIds::GetAnyAura(bot, {NaxxSpellIds::Chill10, NaxxSpellIds::Chill25});
         if (!aura)
         {
             // Fallback to name for custom spell data.
@@ -363,13 +363,13 @@ private:
     Unit* _unit = nullptr;
 };
 
-class FourhorsemanBossHelper : public AiObject
+class FourHorsemenBossHelper : public AiObject
 {
 public:
     const float posZ = 241.27f;
     const std::pair<float, float> attractPos[2] = {{2502.03f, -2910.90f},
                                                    {2484.61f, -2947.07f}};  // left (sir zeliek), right (lady blaumeux)
-    FourhorsemanBossHelper(PlayerbotAI* botAI) : AiObject(botAI) {}
+    FourHorsemenBossHelper(PlayerbotAI* botAI) : AiObject(botAI) {}
     bool UpdateBossAI()
     {
         if (!bot->IsInCombat())
@@ -497,7 +497,8 @@ public:
         if (feugen && feugen->IsAlive())
             unit = feugen;
 
-        if (stalagg && stalagg->IsAlive() && (!feugen || bot->GetDistance(stalagg) < bot->GetDistance(feugen)))
+        if (stalagg && stalagg->IsAlive() &&
+            (!feugen || !feugen->IsAlive() || bot->GetDistance(stalagg) < bot->GetDistance(feugen)))
             unit = stalagg;
 
         return unit;

src/Ai/Raid/Naxxramas/Util/RaidNaxxSpellIds.h

@@ -58,6 +58,7 @@ namespace NaxxSpellIds
     // Sapphiron
     static constexpr uint32 Icebolt10 = 28522;
     static constexpr uint32 Icebolt25 = 28526;
+    static constexpr uint32 Chill10 = 28547;
     static constexpr uint32 Chill25 = 55699;
 /*
     // Fight

src/Ai/Raid/SerpentshrineCavern/Action/RaidSSCActions.h

@@ -1,3 +1,8 @@
+/*
+ * Copyright (C) 2016+ AzerothCore <www.azerothcore.org>, released under GNU AGPL v3 license, you may redistribute it
+ * and/or modify it under version 3 of the License, or (at your option), any later version.
+ */
+
 #ifndef _PLAYERBOT_RAIDSSCACTIONS_H
 #define _PLAYERBOT_RAIDSSCACTIONS_H
 
@@ -75,8 +80,8 @@ public:
     bool Execute(Event event) override;
 
 private:
-    bool TryMisdirectToFrostTank(Unit* hydross, Group* group);
-    bool TryMisdirectToNatureTank(Unit* hydross, Group* group);
+    bool TryMisdirectToFrostTank(Unit* hydross);
+    bool TryMisdirectToNatureTank(Unit* hydross);
 };
 
 class HydrossTheUnstableStopDpsUponPhaseChangeAction : public Action
@@ -413,10 +418,10 @@ private:
     bool LineUpSecondCorePasser(Player* firstCorePasser, Unit* closestTrigger);
     bool LineUpThirdCorePasser(Player* designatedLooter, Player* firstCorePasser, Player* secondCorePasser, Unit* closestTrigger);
     bool LineUpFourthCorePasser(Player* firstCorePasser, Player* secondCorePasser, Player* thirdCorePasser, Unit* closestTrigger);
-    bool IsFirstCorePasserInIntendedPosition(Player* designatedLooter, Player* firstCorePasser, Unit* closestTrigger);
-    bool IsSecondCorePasserInIntendedPosition(Player* firstCorePasser, Player* secondCorePasser, Unit* closestTrigger);
-    bool IsThirdCorePasserInIntendedPosition(Player* secondCorePasser, Player* thirdCorePasser, Unit* closestTrigger);
-    bool IsFourthCorePasserInIntendedPosition(Player* thirdCorePasser, Player* fourthCorePasser, Unit* closestTrigger);
+    bool IsFirstCorePasserInPosition(Player* designatedLooter, Player* firstCorePasser, Unit* closestTrigger);
+    bool IsSecondCorePasserInPosition(Player* firstCorePasser, Player* secondCorePasser, Unit* closestTrigger);
+    bool IsThirdCorePasserInPosition(Player* secondCorePasser, Player* thirdCorePasser, Unit* closestTrigger);
+    bool IsFourthCorePasserInPosition(Player* thirdCorePasser, Player* fourthCorePasser, Unit* closestTrigger);
     void ScheduleTransferCoreAfterImbue(PlayerbotAI* botAI, Player* giver, Player* receiver);
     bool UseCoreOnNearestGenerator(const uint32 instanceId);
 };
@@ -428,19 +433,12 @@ public:
     bool Execute(Event event) override;
 };
 
-class LadyVashjEraseCorePassingTrackersAction : public Action
-{
-public:
-    LadyVashjEraseCorePassingTrackersAction(PlayerbotAI* botAI, std::string const name = "lady vashj erase core passing trackers") : Action(botAI, name) {}
-    bool Execute(Event event) override;
-};
-
 class LadyVashjAvoidToxicSporesAction : public MovementAction
 {
 public:
     LadyVashjAvoidToxicSporesAction(PlayerbotAI* botAI, std::string const name = "lady vashj avoid toxic spores") : MovementAction(botAI, name) {}
     bool Execute(Event event) override;
-    static std::vector<Unit*> GetAllSporeDropTriggers(PlayerbotAI* botAI, Player* bot);
+    static std::vector<Unit*> GetAllSporeDropTriggers(Player* bot);
 
 private:
     Position FindSafestNearbyPosition(const std::vector<Unit*>& spores, const Position& position, float maxRadius, float hazardRadius);

src/Ai/Raid/SerpentshrineCavern/Multiplier/RaidSSCMultipliers.cpp

@@ -1,3 +1,8 @@
+/*
+ * Copyright (C) 2016+ AzerothCore <www.azerothcore.org>, released under GNU AGPL v3 license, you may redistribute it
+ * and/or modify it under version 3 of the License, or (at your option), any later version.
+ */
+
 #include "RaidSSCMultipliers.h"
 #include "RaidSSCActions.h"
 #include "RaidSSCHelpers.h"
@@ -28,12 +33,10 @@ using namespace SerpentShrineCavernHelpers;
 
 float UnderbogColossusEscapeToxicPoolMultiplier::GetValue(Action* action)
 {
-    if (bot->HasAura(SPELL_TOXIC_POOL))
-    {
-        if (dynamic_cast<MovementAction*>(action) &&
+    if (bot->HasAura(SPELL_TOXIC_POOL) &&
+        dynamic_cast<MovementAction*>(action) &&
         !dynamic_cast<UnderbogColossusEscapeToxicPoolAction*>(action))
         return 0.0f;
-    }
 
     return 1.0f;
 }
@@ -53,16 +56,16 @@ float HydrossTheUnstableDisableTankActionsMultiplier::GetValue(Action* action)
         dynamic_cast<CombatFormationMoveAction*>(action))
         return 0.0f;
 
+    if ((botAI->IsMainTank(bot) && !hydross->HasAura(SPELL_CORRUPTION)) ||
+        (botAI->IsAssistTankOfIndex(bot, 0, true) && hydross->HasAura(SPELL_CORRUPTION)))
+        return 1.0f;
+
     if (dynamic_cast<CastReachTargetSpellAction*>(action) ||
         dynamic_cast<ReachTargetAction*>(action) ||
         (dynamic_cast<AttackAction*>(action) &&
          !dynamic_cast<HydrossTheUnstablePositionFrostTankAction*>(action) &&
          !dynamic_cast<HydrossTheUnstablePositionNatureTankAction*>(action)))
-    {
-        if ((botAI->IsMainTank(bot) && hydross->HasAura(SPELL_CORRUPTION)) ||
-            (botAI->IsAssistTankOfIndex(bot, 0, true) && !hydross->HasAura(SPELL_CORRUPTION)))
         return 0.0f;
-    }
 
     return 1.0f;
 }
@@ -97,14 +100,14 @@ float HydrossTheUnstableWaitForDpsMultiplier::GetValue(Action* action)
         bool aboutToChange = (itPhase != hydrossChangeToFrostPhaseTimer.end() &&
                               (now - itPhase->second) > phaseChangeWaitSeconds);
 
-        if (justChanged || aboutToChange)
-        {
+        if (!justChanged && !aboutToChange)
+            return 1.0f;
+
         if (dynamic_cast<AttackAction*>(action) ||
             (dynamic_cast<CastSpellAction*>(action) &&
              !dynamic_cast<CastHealingSpellAction*>(action)))
             return 0.0f;
     }
-    }
 
     if (hydross->HasAura(SPELL_CORRUPTION) && !botAI->IsAssistTankOfIndex(bot, 0, true))
     {
@@ -116,14 +119,14 @@ float HydrossTheUnstableWaitForDpsMultiplier::GetValue(Action* action)
         bool aboutToChange = (itPhase != hydrossChangeToNaturePhaseTimer.end() &&
                               (now - itPhase->second) > phaseChangeWaitSeconds);
 
-        if (justChanged || aboutToChange)
-        {
+        if (!justChanged && !aboutToChange)
+            return 1.0f;
+
         if (dynamic_cast<AttackAction*>(action) ||
             (dynamic_cast<CastSpellAction*>(action) &&
              !dynamic_cast<CastHealingSpellAction*>(action)))
             return 0.0f;
     }
-    }
 
     return 1.0f;
 }
@@ -133,11 +136,9 @@ float HydrossTheUnstableControlMisdirectionMultiplier::GetValue(Action* action)
     if (bot->getClass() != CLASS_HUNTER)
         return 1.0f;
 
-    if (AI_VALUE2(Unit*, "find target", "hydross the unstable"))
-    {
-        if (dynamic_cast<CastMisdirectionOnMainTankAction*>(action))
+    if (AI_VALUE2(Unit*, "find target", "hydross the unstable") &&
+        dynamic_cast<CastMisdirectionOnMainTankAction*>(action))
         return 0.0f;
-    }
 
     return 1.0f;
 }
@@ -175,14 +176,14 @@ float TheLurkerBelowMaintainRangedSpreadMultiplier::GetValue(Action* action)
     if (!botAI->IsRanged(bot))
         return 1.0f;
 
-    if (AI_VALUE2(Unit*, "find target", "the lurker below"))
-    {
+    if (!AI_VALUE2(Unit*, "find target", "the lurker below"))
+        return 1.0f;
+
     if (dynamic_cast<CombatFormationMoveAction*>(action) ||
         dynamic_cast<FleeAction*>(action) ||
         dynamic_cast<CastDisengageAction*>(action) ||
         dynamic_cast<CastBlinkBackAction*>(action))
         return 0.0f;
-    }
 
     return 1.0f;
 }
@@ -215,11 +216,11 @@ float TheLurkerBelowDisableTankAssistMultiplier::GetValue(Action* action)
             ++tankCount;
     }
 
-    if (tankCount >= 3)
-    {
+    if (tankCount < 3)
+        return 1.0f;
+
     if (dynamic_cast<TankAssistAction*>(action))
         return 0.0f;
-    }
 
     return 1.0f;
 }
@@ -234,14 +235,11 @@ float LeotherasTheBlindAvoidWhirlwindMultiplier::GetValue(Action* action)
     if (bot->HasAura(SPELL_INSIDIOUS_WHISPER))
         return 1.0f;
 
-    Unit* leotherasHuman = GetLeotherasHuman(botAI);
-    if (!leotherasHuman)
+    Unit* leotheras = AI_VALUE2(Unit*, "find target", "leotheras the blind");
+    if (!leotheras || (!leotheras->HasAura(SPELL_WHIRLWIND) &&
+        !leotheras->HasAura(SPELL_WHIRLWIND_CHANNEL)))
         return 1.0f;
 
-    if (!leotherasHuman->HasAura(SPELL_LEOTHERAS_BANISHED) &&
-        (leotherasHuman->HasAura(SPELL_WHIRLWIND) ||
-         leotherasHuman->HasAura(SPELL_WHIRLWIND_CHANNEL)))
-    {
     if (dynamic_cast<CastReachTargetSpellAction*>(action))
         return 0.0f;
 
@@ -249,7 +247,6 @@ float LeotherasTheBlindAvoidWhirlwindMultiplier::GetValue(Action* action)
         !dynamic_cast<AttackAction*>(action) &&
         !dynamic_cast<LeotherasTheBlindRunAwayFromWhirlwindAction*>(action))
         return 0.0f;
-    }
 
     return 1.0f;
 }
@@ -262,10 +259,10 @@ float LeotherasTheBlindDisableTankActionsMultiplier::GetValue(Action* action)
     if (!AI_VALUE2(Unit*, "find target", "leotheras the blind"))
         return 1.0f;
 
-    if (GetPhase2LeotherasDemon(botAI) && dynamic_cast<AttackAction*>(action))
+    if (GetPhase2LeotherasDemon(bot) && dynamic_cast<AttackAction*>(action))
         return 0.0f;
 
-    if (!GetPhase3LeotherasDemon(botAI) && dynamic_cast<CastBerserkAction*>(action))
+    if (!GetPhase3LeotherasDemon(bot) && dynamic_cast<CastBerserkAction*>(action))
         return 0.0f;
 
     return 1.0f;
@@ -273,8 +270,9 @@ float LeotherasTheBlindDisableTankActionsMultiplier::GetValue(Action* action)
 
 float LeotherasTheBlindFocusOnInnerDemonMultiplier::GetValue(Action* action)
 {
-    if (bot->HasAura(SPELL_INSIDIOUS_WHISPER))
-    {
+    if (!bot->HasAura(SPELL_INSIDIOUS_WHISPER))
+        return 1.0f;
+
     if (dynamic_cast<TankAssistAction*>(action) ||
         dynamic_cast<DpsAssistAction*>(action) ||
         dynamic_cast<CastHealingSpellAction*>(action) ||
@@ -287,7 +285,6 @@ float LeotherasTheBlindFocusOnInnerDemonMultiplier::GetValue(Action* action)
         dynamic_cast<CastDireBearFormAction*>(action) ||
         dynamic_cast<CastTreeFormAction*>(action))
         return 0.0f;
-    }
 
     return 1.0f;
 }
@@ -297,19 +294,19 @@ float LeotherasTheBlindMeleeDpsAvoidChaosBlastMultiplier::GetValue(Action* actio
     if (botAI->IsRanged(bot) || botAI->IsTank(bot))
         return 1.0f;
 
-    if (!GetPhase2LeotherasDemon(botAI))
+    if (!GetPhase2LeotherasDemon(bot))
         return 1.0f;
 
     Aura* chaosBlast = bot->GetAura(SPELL_CHAOS_BLAST);
-    if (chaosBlast && chaosBlast->GetStackAmount() >= 5)
-    {
+    if (!chaosBlast || chaosBlast->GetStackAmount() < 5)
+        return 1.0f;
+
     if (dynamic_cast<AttackAction*>(action) ||
         dynamic_cast<ReachTargetAction*>(action) ||
         dynamic_cast<CombatFormationMoveAction*>(action) ||
         dynamic_cast<CastReachTargetSpellAction*>(action) ||
         dynamic_cast<CastKillingSpreeAction*>(action))
         return 0.0f;
-    }
 
     return 1.0f;
 }
@@ -330,8 +327,8 @@ float LeotherasTheBlindWaitForDpsMultiplier::GetValue(Action* action)
     const time_t now = std::time(nullptr);
 
     constexpr uint8 dpsWaitSecondsPhase1 = 5;
-    Unit* leotherasHuman = GetLeotherasHuman(botAI);
-    Unit* leotherasPhase3Demon = GetPhase3LeotherasDemon(botAI);
+    Unit* leotherasHuman = GetLeotherasHuman(bot);
+    Unit* leotherasPhase3Demon = GetPhase3LeotherasDemon(bot);
     if (leotherasHuman && !leotherasHuman->HasAura(SPELL_LEOTHERAS_BANISHED) &&
         !leotherasPhase3Demon)
     {
@@ -350,7 +347,7 @@ float LeotherasTheBlindWaitForDpsMultiplier::GetValue(Action* action)
     }
 
     constexpr uint8 dpsWaitSecondsPhase2 = 12;
-    Unit* leotherasPhase2Demon = GetPhase2LeotherasDemon(botAI);
+    Unit* leotherasPhase2Demon = GetPhase2LeotherasDemon(bot);
     Player* demonFormTank = GetLeotherasDemonFormTank(bot);
     if (leotherasPhase2Demon)
     {
@@ -398,12 +395,12 @@ float LeotherasTheBlindDelayBloodlustAndHeroismMultiplier::GetValue(Action* acti
         return 1.0f;
 
     Unit* leotheras = AI_VALUE2(Unit*, "find target", "leotheras the blind");
-    if (leotheras && leotheras->HasAura(SPELL_LEOTHERAS_BANISHED))
-    {
+    if (!leotheras || !leotheras->HasAura(SPELL_LEOTHERAS_BANISHED))
+        return 1.0f;
+
     if (dynamic_cast<CastHeroismAction*>(action) ||
         dynamic_cast<CastBloodlustAction*>(action))
         return 0.0f;
-    }
 
     return 1.0f;
 }
@@ -447,14 +444,12 @@ float FathomLordKarathressDisableAoeMultiplier::GetValue(Action* action)
     if (!botAI->IsDps(bot))
         return 1.0f;
 
-    if (AI_VALUE2(Unit*, "find target", "fathom-lord karathress"))
-    {
-        if (auto castSpellAction = dynamic_cast<CastSpellAction*>(action))
-        {
-            if (castSpellAction->getThreatType() == Action::ActionThreatType::Aoe)
+    if (!AI_VALUE2(Unit*, "find target", "fathom-lord karathress"))
+        return 1.0f;
+
+    auto castSpellAction = dynamic_cast<CastSpellAction*>(action);
+    if (castSpellAction && castSpellAction->getThreatType() == Action::ActionThreatType::Aoe)
         return 0.0f;
-        }
-    }
 
     return 1.0f;
 }
@@ -464,11 +459,11 @@ float FathomLordKarathressControlMisdirectionMultiplier::GetValue(Action* action
     if (bot->getClass() != CLASS_HUNTER)
         return 1.0f;
 
-    if (AI_VALUE2(Unit*, "find target", "fathom-lord karathress"))
-    {
+    if (!AI_VALUE2(Unit*, "find target", "fathom-lord karathress"))
+        return 1.0f;
+
     if (dynamic_cast<CastMisdirectionOnMainTankAction*>(action))
         return 0.0f;
-    }
 
     return 1.0f;
 }
@@ -505,12 +500,12 @@ float FathomLordKarathressCaribdisTankHealerMaintainPositionMultiplier::GetValue
     if (!botAI->IsAssistHealOfIndex(bot, 0, true))
         return 1.0f;
 
-    if (AI_VALUE2(Unit*, "find target", "fathom-guard caribdis"))
-    {
+    if (!AI_VALUE2(Unit*, "find target", "fathom-guard caribdis"))
+        return 1.0f;
+
     if (dynamic_cast<FleeAction*>(action) ||
         dynamic_cast<FollowAction*>(action))
         return 0.0f;
-    }
 
     return 1.0f;
 }
@@ -526,12 +521,12 @@ float MorogrimTidewalkerDelayBloodlustAndHeroismMultiplier::GetValue(Action* act
     if (!AI_VALUE2(Unit*, "find target", "morogrim tidewalker"))
         return 1.0f;
 
-    if (!AI_VALUE2(Unit*, "find target", "tidewalker lurker"))
-    {
+    if (AI_VALUE2(Unit*, "find target", "tidewalker lurker"))
+        return 1.0f;
+
     if (dynamic_cast<CastHeroismAction*>(action) ||
         dynamic_cast<CastBloodlustAction*>(action))
         return 0.0f;
-    }
 
     return 1.0f;
 }
@@ -541,11 +536,11 @@ float MorogrimTidewalkerDisableTankActionsMultiplier::GetValue(Action* action)
     if (!botAI->IsMainTank(bot))
         return 1.0f;
 
-    if (AI_VALUE2(Unit*, "find target", "morogrim tidewalker"))
-    {
+    if (!AI_VALUE2(Unit*, "find target", "morogrim tidewalker"))
+        return 1.0f;
+
     if (dynamic_cast<CombatFormationMoveAction*>(action))
         return 0.0f;
-    }
 
     return 1.0f;
 }
@@ -556,17 +551,14 @@ float MorogrimTidewalkerMaintainPhase2StackingMultiplier::GetValue(Action* actio
         return 1.0f;
 
     Unit* tidewalker = AI_VALUE2(Unit*, "find target", "morogrim tidewalker");
-    if (!tidewalker)
+    if (!tidewalker || tidewalker->GetHealthPct() > 25.0f)
         return 1.0f;
 
-    if (tidewalker->GetHealthPct() < 25.0f)
-    {
     if (dynamic_cast<CombatFormationMoveAction*>(action) ||
         dynamic_cast<FleeAction*>(action) ||
         dynamic_cast<CastDisengageAction*>(action) ||
         dynamic_cast<CastBlinkBackAction*>(action))
         return 0.0f;
-    }
 
     return 1.0f;
 }
@@ -580,18 +572,15 @@ float LadyVashjDelayCooldownsMultiplier::GetValue(Action* action)
     if (!AI_VALUE2(Unit*, "find target", "lady vashj"))
         return 1.0f;
 
-    if (bot->getClass() == CLASS_SHAMAN)
-    {
-        if (IsLadyVashjInPhase3(botAI))
+    if (bot->getClass() == CLASS_SHAMAN &&
+        !IsLadyVashjInPhase3(botAI) &&
+        (dynamic_cast<CastBloodlustAction*>(action) ||
+         dynamic_cast<CastHeroismAction*>(action)))
+        return 0.0f;
+
+    if (!botAI->IsDps(bot) || !IsLadyVashjInPhase1(botAI))
         return 1.0f;
 
-        if (dynamic_cast<CastBloodlustAction*>(action) ||
-            dynamic_cast<CastHeroismAction*>(action))
-            return 0.0f;
-    }
-
-    if (botAI->IsDps(bot) && IsLadyVashjInPhase1(botAI))
-    {
     if (dynamic_cast<CastMetamorphosisAction*>(action) ||
         dynamic_cast<CastAdrenalineRushAction*>(action) ||
         dynamic_cast<CastBladeFlurryAction*>(action) ||
@@ -614,8 +603,29 @@ float LadyVashjDelayCooldownsMultiplier::GetValue(Action* action)
         dynamic_cast<CastBloodFuryAction*>(action) ||
         dynamic_cast<UseTrinketAction*>(action))
         return 0.0f;
+
+    return 1.0f;
 }
 
+float LadyVashjMainTankGroupShamanUseGroundingTotemMultiplier::GetValue(Action* action)
+{
+    if (bot->getClass() != CLASS_SHAMAN)
+        return 1.0f;
+
+    if (!AI_VALUE2(Unit*, "find target", "lady vashj"))
+        return 1.0f;
+
+    if (!IsMainTankInSameSubgroup(botAI, bot))
+        return 1.0f;
+
+    if (dynamic_cast<CastWindfuryTotemAction*>(action) ||
+        dynamic_cast<SetWindfuryTotemAction*>(action) ||
+        dynamic_cast<CastWrathOfAirTotemAction*>(action) ||
+        dynamic_cast<SetWrathOfAirTotemAction*>(action) ||
+        dynamic_cast<CastNatureResistanceTotemAction*>(action) ||
+        dynamic_cast<SetNatureResistanceTotemAction*>(action))
+        return 0.0f;
+
     return 1.0f;
 }
 
@@ -624,15 +634,15 @@ float LadyVashjMaintainPhase1RangedSpreadMultiplier::GetValue(Action* action)
     if (!botAI->IsRanged(bot))
         return 1.0f;
 
-    if (AI_VALUE2(Unit*, "find target", "lady vashj") &&
-        IsLadyVashjInPhase1(botAI))
-    {
+    if (!AI_VALUE2(Unit*, "find target", "lady vashj") ||
+        !IsLadyVashjInPhase1(botAI))
+        return 1.0f;
+
     if (dynamic_cast<CombatFormationMoveAction*>(action) ||
         dynamic_cast<FleeAction*>(action) ||
         dynamic_cast<CastDisengageAction*>(action) ||
         dynamic_cast<CastBlinkBackAction*>(action))
         return 0.0f;
-    }
 
     return 1.0f;
 }
@@ -658,19 +668,18 @@ float LadyVashjStaticChargeStayAwayFromGroupMultiplier::GetValue(Action* action)
 // Bots should not loot the core with normal looting logic
 float LadyVashjDoNotLootTheTaintedCoreMultiplier::GetValue(Action* action)
 {
-    if (AI_VALUE2(Unit*, "find target", "lady vashj"))
-    {
+    if (!AI_VALUE2(Unit*, "find target", "lady vashj"))
+        return 1.0f;
+
     if (dynamic_cast<LootAction*>(action))
         return 0.0f;
-    }
 
     return 1.0f;
 }
 
 float LadyVashjCorePassersPrioritizePositioningMultiplier::GetValue(Action* action)
 {
-    if (!AI_VALUE2(Unit*, "find target", "lady vashj") ||
-        !IsLadyVashjInPhase2(botAI))
+    if (!AI_VALUE2(Unit*, "find target", "lady vashj") || !IsLadyVashjInPhase2(botAI))
         return 1.0f;
 
     if (dynamic_cast<WipeAction*>(action) ||
@@ -678,65 +687,43 @@ float LadyVashjCorePassersPrioritizePositioningMultiplier::GetValue(Action* acti
         dynamic_cast<LadyVashjDestroyTaintedCoreAction*>(action))
         return 1.0f;
 
-    Group* group = bot->GetGroup();
-    if (!group)
-        return 1.0f;
+    auto coreHandlers = GetCoreHandlers(botAI, bot);
 
-    Player* designatedLooter = GetDesignatedCoreLooter(group, botAI);
-    Player* firstCorePasser = GetFirstTaintedCorePasser(group, botAI);
-    Player* secondCorePasser = GetSecondTaintedCorePasser(group, botAI);
-    Player* thirdCorePasser = GetThirdTaintedCorePasser(group, botAI);
-    Player* fourthCorePasser = GetFourthTaintedCorePasser(group, botAI);
+    bool isCoreHandler = false;
+    int myIndex = -1;
+    for (int i = 0; i < static_cast<int>(coreHandlers.size()); ++i)
+    {
+        if (coreHandlers[i] && coreHandlers[i] == bot)
+        {
+            isCoreHandler = true;
+            myIndex = i;
+        }
+    }
+    if (!isCoreHandler)
+        return 1.0f;
 
     auto hasCore = [](Player* player)
     {
         return player && player->HasItemCount(ITEM_TAINTED_CORE, 1, false);
     };
 
-    if (hasCore(bot))
-    {
-        if (!dynamic_cast<LadyVashjPassTheTaintedCoreAction*>(action))
+    // If the bot actually has the core, only allow core handling
+    if (hasCore(bot) && !dynamic_cast<LadyVashjPassTheTaintedCoreAction*>(action))
         return 0.0f;
-    }
 
-    if (bot == designatedLooter)
-    {
-        if (!hasCore(bot))
-            return 1.0f;
-    }
-    else if (bot == firstCorePasser)
-    {
-        if (hasCore(secondCorePasser) || hasCore(thirdCorePasser) ||
-            hasCore(fourthCorePasser))
-            return 1.0f;
-    }
-    else if (bot == secondCorePasser)
-    {
-        if (hasCore(thirdCorePasser) || hasCore(fourthCorePasser))
-            return 1.0f;
-    }
-    else if (bot == thirdCorePasser)
-    {
-        if (hasCore(fourthCorePasser))
-            return 1.0f;
-    }
-    else if (bot != fourthCorePasser)
-        return 1.0f;
+    // First and second passers block movement when the looter teleports to the elemental
+    Unit* tainted = AI_VALUE2(Unit*, "find target", "tainted elemental");
+    if (tainted && coreHandlers[0]->GetExactDist2d(tainted) < 5.0f &&
+        (bot == coreHandlers[1] || bot == coreHandlers[2]) &&
+        (dynamic_cast<MovementAction*>(action) &&
+         !dynamic_cast<LadyVashjPassTheTaintedCoreAction*>(action)))
+        return 0.0f;
 
-    if (AI_VALUE2(Unit*, "find target", "tainted elemental") &&
-        (bot == firstCorePasser || bot == secondCorePasser))
-    {
-        if (dynamic_cast<MovementAction*>(action) &&
+    // If any prior handler (including self) recently had the core, block other movement
+    if (AnyRecentCoreInInventory(botAI, bot) &&
+        dynamic_cast<MovementAction*>(action) &&
         !dynamic_cast<LadyVashjPassTheTaintedCoreAction*>(action))
         return 0.0f;
-    }
-
-    if (AnyRecentCoreInInventory(group, botAI))
-    {
-        if (dynamic_cast<MovementAction*>(action) &&
-            !dynamic_cast<LadyVashjPassTheTaintedCoreAction*>(action))
-            return 0.0f;
-    }
 
     return 1.0f;
 }
@@ -745,7 +732,8 @@ float LadyVashjCorePassersPrioritizePositioningMultiplier::GetValue(Action* acti
 // So the standard target selection system must be disabled
 float LadyVashjDisableAutomaticTargetingAndMovementModifier::GetValue(Action *action)
 {
-    if (!AI_VALUE2(Unit*, "find target", "lady vashj"))
+    Unit* vashj = AI_VALUE2(Unit*, "find target", "lady vashj");
+    if (!vashj)
         return 1.0f;
 
     if (dynamic_cast<AvoidAoeAction*>(action))
@@ -755,24 +743,26 @@ float LadyVashjDisableAutomaticTargetingAndMovementModifier::GetValue(Action *ac
     {
         if (dynamic_cast<DpsAssistAction*>(action) ||
             dynamic_cast<TankAssistAction*>(action) ||
-            dynamic_cast<FollowAction*>(action) ||
             dynamic_cast<FleeAction*>(action))
             return 0.0f;
 
+        if (bot->GetExactDist2d(vashj) < 60.0f &&
+            dynamic_cast<FollowAction*>(action))
+            return 0.0f;
+
         if (!botAI->IsHeal(bot) && dynamic_cast<CastHealingSpellAction*>(action))
             return 0.0f;
 
         Unit* enchanted = AI_VALUE2(Unit*, "find target", "enchanted elemental");
-        if (enchanted && bot->GetVictim() == enchanted)
-        {
-            if (dynamic_cast<CastDebuffSpellOnAttackerAction*>(action))
+        if (enchanted && bot->GetVictim() == enchanted &&
+            dynamic_cast<CastDebuffSpellOnAttackerAction*>(action))
             return 0.0f;
     }
-    }
 
     if (IsLadyVashjInPhase3(botAI))
     {
-        if (dynamic_cast<DpsAssistAction*>(action))
+        if (dynamic_cast<DpsAssistAction*>(action) ||
+            dynamic_cast<TankAssistAction*>(action))
             return 0.0f;
 
         Unit* enchanted = AI_VALUE2(Unit*, "find target", "enchanted elemental");
@@ -780,17 +770,14 @@ float LadyVashjDisableAutomaticTargetingAndMovementModifier::GetValue(Action *ac
         Unit* elite = AI_VALUE2(Unit*, "find target", "coilfang elite");
         if (enchanted || strider || elite)
         {
-            if (dynamic_cast<TankAssistAction*>(action) ||
-                dynamic_cast<FollowAction*>(action) ||
+            if (dynamic_cast<FollowAction*>(action) ||
                 dynamic_cast<FleeAction*>(action))
                 return 0.0f;
 
-            if (enchanted && bot->GetVictim() == enchanted)
-            {
-                if (dynamic_cast<CastDebuffSpellOnAttackerAction*>(action))
+            if (enchanted && bot->GetVictim() == enchanted &&
+                dynamic_cast<CastDebuffSpellOnAttackerAction*>(action))
                 return 0.0f;
         }
-        }
         else if (dynamic_cast<CombatFormationMoveAction*>(action))
             return 0.0f;
     }

src/Ai/Raid/SerpentshrineCavern/Multiplier/RaidSSCMultipliers.h

@@ -1,3 +1,8 @@
+/*
+ * Copyright (C) 2016+ AzerothCore <www.azerothcore.org>, released under GNU AGPL v3 license, you may redistribute it
+ * and/or modify it under version 3 of the License, or (at your option), any later version.
+ */
+
 #ifndef _PLAYERBOT_RAIDSSCMULTIPLIERS_H
 #define _PLAYERBOT_RAIDSSCMULTIPLIERS_H
 
@@ -193,6 +198,14 @@ public:
     virtual float GetValue(Action* action);
 };
 
+class LadyVashjMainTankGroupShamanUseGroundingTotemMultiplier : public Multiplier
+{
+public:
+    LadyVashjMainTankGroupShamanUseGroundingTotemMultiplier(
+        PlayerbotAI* botAI) : Multiplier(botAI, "lady vashj main tank group shaman use grounding totem") {}
+    virtual float GetValue(Action* action);
+};
+
 class LadyVashjMaintainPhase1RangedSpreadMultiplier : public Multiplier
 {
 public:

src/Ai/Raid/SerpentshrineCavern/RaidSSCActionContext.h

@@ -1,3 +1,8 @@
+/*
+ * Copyright (C) 2016+ AzerothCore <www.azerothcore.org>, released under GNU AGPL v3 license, you may redistribute it
+ * and/or modify it under version 3 of the License, or (at your option), any later version.
+ */
+
 #ifndef _PLAYERBOT_RAIDSSCACTIONCONTEXT_H
 #define _PLAYERBOT_RAIDSSCACTIONCONTEXT_H
 
@@ -161,9 +166,6 @@ public:
         creators["lady vashj destroy tainted core"] =
             &RaidSSCActionContext::lady_vashj_destroy_tainted_core;
 
-        creators["lady vashj erase core passing trackers"] =
-            &RaidSSCActionContext::lady_vashj_erase_core_passing_trackers;
-
         creators["lady vashj avoid toxic spores"] =
             &RaidSSCActionContext::lady_vashj_avoid_toxic_spores;
 
@@ -324,9 +326,6 @@ private:
     static Action* lady_vashj_destroy_tainted_core(
         PlayerbotAI* botAI) { return new LadyVashjDestroyTaintedCoreAction(botAI); }
 
-    static Action* lady_vashj_erase_core_passing_trackers(
-        PlayerbotAI* botAI) { return new LadyVashjEraseCorePassingTrackersAction(botAI); }
-
     static Action* lady_vashj_avoid_toxic_spores(
         PlayerbotAI* botAI) { return new LadyVashjAvoidToxicSporesAction(botAI); }
 

src/Ai/Raid/SerpentshrineCavern/RaidSSCTriggerContext.h

@@ -1,3 +1,8 @@
+/*
+ * Copyright (C) 2016+ AzerothCore <www.azerothcore.org>, released under GNU AGPL v3 license, you may redistribute it
+ * and/or modify it under version 3 of the License, or (at your option), any later version.
+ */
+
 #ifndef _PLAYERBOT_RAIDSSCTRIGGERCONTEXT_H
 #define _PLAYERBOT_RAIDSSCTRIGGERCONTEXT_H
 
@@ -155,9 +160,6 @@ public:
         creators["lady vashj tainted core is unusable"] =
             &RaidSSCTriggerContext::lady_vashj_tainted_core_is_unusable;
 
-        creators["lady vashj need to reset core passing trackers"] =
-            &RaidSSCTriggerContext::lady_vashj_need_to_reset_core_passing_trackers;
-
         creators["lady vashj toxic sporebats are spewing poison clouds"] =
             &RaidSSCTriggerContext::lady_vashj_toxic_sporebats_are_spewing_poison_clouds;
 
@@ -312,9 +314,6 @@ private:
     static Trigger* lady_vashj_tainted_core_is_unusable(
         PlayerbotAI* botAI) { return new LadyVashjTaintedCoreIsUnusableTrigger(botAI); }
 
-    static Trigger* lady_vashj_need_to_reset_core_passing_trackers(
-        PlayerbotAI* botAI) { return new LadyVashjNeedToResetCorePassingTrackersTrigger(botAI); }
-
     static Trigger* lady_vashj_toxic_sporebats_are_spewing_poison_clouds(
         PlayerbotAI* botAI) { return new LadyVashjToxicSporebatsAreSpewingPoisonCloudsTrigger(botAI); }
 

src/Ai/Raid/SerpentshrineCavern/Strategy/RaidSSCStrategy.cpp

@@ -1,3 +1,8 @@
+/*
+ * Copyright (C) 2016+ AzerothCore <www.azerothcore.org>, released under GNU AGPL v3 license, you may redistribute it
+ * and/or modify it under version 3 of the License, or (at your option), any later version.
+ */
+
 #include "RaidSSCStrategy.h"
 #include "RaidSSCMultipliers.h"
 
@@ -144,9 +149,6 @@ void RaidSSCStrategy::InitTriggers(std::vector<TriggerNode*>& triggers)
     triggers.push_back(new TriggerNode("lady vashj tainted core is unusable", {
         NextAction("lady vashj destroy tainted core", ACTION_EMERGENCY + 1) }));
 
-    triggers.push_back(new TriggerNode("lady vashj need to reset core passing trackers", {
-        NextAction("lady vashj erase core passing trackers", ACTION_EMERGENCY + 10) }));
-
     triggers.push_back(new TriggerNode("lady vashj adds spawn in phase 2 and phase 3", {
         NextAction("lady vashj assign phase 2 and phase 3 dps priority", ACTION_RAID + 1) }));
 
@@ -198,6 +200,7 @@ void RaidSSCStrategy::InitMultipliers(std::vector<Multiplier*>& multipliers)
 
     // Lady Vashj <Coilfang Matron>
     multipliers.push_back(new LadyVashjDelayCooldownsMultiplier(botAI));
+    multipliers.push_back(new LadyVashjMainTankGroupShamanUseGroundingTotemMultiplier(botAI));
     multipliers.push_back(new LadyVashjMaintainPhase1RangedSpreadMultiplier(botAI));
     multipliers.push_back(new LadyVashjStaticChargeStayAwayFromGroupMultiplier(botAI));
     multipliers.push_back(new LadyVashjDoNotLootTheTaintedCoreMultiplier(botAI));

src/Ai/Raid/SerpentshrineCavern/Strategy/RaidSSCStrategy.h

@@ -1,3 +1,8 @@
+/*
+ * Copyright (C) 2016+ AzerothCore <www.azerothcore.org>, released under GNU AGPL v3 license, you may redistribute it
+ * and/or modify it under version 3 of the License, or (at your option), any later version.
+ */
+
 #ifndef _PLAYERBOT_RAIDSSCSTRATEGY_H_
 #define _PLAYERBOT_RAIDSSCSTRATEGY_H_
 

src/Ai/Raid/SerpentshrineCavern/Trigger/RaidSSCTriggers.cpp

@@ -1,3 +1,8 @@
+/*
+ * Copyright (C) 2016+ AzerothCore <www.azerothcore.org>, released under GNU AGPL v3 license, you may redistribute it
+ * and/or modify it under version 3 of the License, or (at your option), any later version.
+ */
+
 #include "RaidSSCTriggers.h"
 #include "RaidSSCHelpers.h"
 #include "RaidSSCActions.h"
@@ -26,35 +31,37 @@ bool UnderbogColossusSpawnedToxicPoolAfterDeathTrigger::IsActive()
 bool GreyheartTidecallerWaterElementalTotemSpawnedTrigger::IsActive()
 {
     return botAI->IsDps(bot) &&
-           GetFirstAliveUnitByEntry(botAI, NPC_WATER_ELEMENTAL_TOTEM);
+           AI_VALUE2(Unit*, "find target", "greyheart tidecaller");
 }
 
 // Hydross the Unstable <Duke of Currents>
 
 bool HydrossTheUnstableBotIsFrostTankTrigger::IsActive()
 {
-    return AI_VALUE2(Unit*, "find target", "hydross the unstable") &&
-           botAI->IsMainTank(bot);
+    return botAI->IsMainTank(bot) &&
+           AI_VALUE2(Unit*, "find target", "hydross the unstable");
 }
 
 bool HydrossTheUnstableBotIsNatureTankTrigger::IsActive()
 {
-    return AI_VALUE2(Unit*, "find target", "hydross the unstable") &&
-           botAI->IsAssistTankOfIndex(bot, 0, true);
+    return botAI->IsAssistTankOfIndex(bot, 0, true) &&
+           AI_VALUE2(Unit*, "find target", "hydross the unstable");
 }
 
 bool HydrossTheUnstableElementalsSpawnedTrigger::IsActive()
 {
+    if (botAI->IsHeal(bot))
+        return false;
+
     Unit* hydross = AI_VALUE2(Unit*, "find target", "hydross the unstable");
-    if (hydross && hydross->GetHealthPct() < 10.0f)
+    if (!hydross || hydross->GetHealthPct() < 10.0f)
         return false;
 
-    if (!AI_VALUE2(Unit*, "find target", "pure spawn of hydross") &&
-        !AI_VALUE2(Unit*, "find target", "tainted spawn of hydross"))
+    if (botAI->IsMainTank(bot) || botAI->IsAssistTankOfIndex(bot, 0, true))
         return false;
 
-    return !botAI->IsHeal(bot) && !botAI->IsMainTank(bot) &&
-           !botAI->IsAssistTankOfIndex(bot, 0, true);
+    return AI_VALUE2(Unit*, "find target", "pure spawn of hydross") ||
+           AI_VALUE2(Unit*, "find target", "tainted spawn of hydross");
 }
 
 bool HydrossTheUnstableDangerFromWaterTombsTrigger::IsActive()
@@ -71,19 +78,19 @@ bool HydrossTheUnstableTankNeedsAggroUponPhaseChangeTrigger::IsActive()
 
 bool HydrossTheUnstableAggroResetsUponPhaseChangeTrigger::IsActive()
 {
-    if (!AI_VALUE2(Unit*, "find target", "hydross the unstable"))
+    if (bot->getClass() == CLASS_HUNTER ||
+        botAI->IsHeal(bot) ||
+        botAI->IsMainTank(bot) ||
+        botAI->IsAssistTankOfIndex(bot, 0, true))
         return false;
 
-    return bot->getClass() != CLASS_HUNTER &&
-           !botAI->IsHeal(bot) &&
-           !botAI->IsMainTank(bot) &&
-           !botAI->IsAssistTankOfIndex(bot, 0, true);
+    return AI_VALUE2(Unit*, "find target", "hydross the unstable");
 }
 
 bool HydrossTheUnstableNeedToManageTimersTrigger::IsActive()
 {
-    return AI_VALUE2(Unit*, "find target", "hydross the unstable") &&
-           IsMechanicTrackerBot(botAI, bot, SSC_MAP_ID, nullptr);
+    return IsMechanicTrackerBot(botAI, bot, SSC_MAP_ID) &&
+           AI_VALUE2(Unit*, "find target", "hydross the unstable");
 }
 
 // The Lurker Below
@@ -102,11 +109,11 @@ bool TheLurkerBelowSpoutIsActiveTrigger::IsActive()
 
 bool TheLurkerBelowBossIsActiveForMainTankTrigger::IsActive()
 {
-    Unit* lurker = AI_VALUE2(Unit*, "find target", "the lurker below");
-    if (!lurker)
+    if (!botAI->IsMainTank(bot))
         return false;
 
-    if (!botAI->IsMainTank(bot))
+    Unit* lurker = AI_VALUE2(Unit*, "find target", "the lurker below");
+    if (!lurker)
         return false;
 
     const time_t now = std::time(nullptr);
@@ -135,35 +142,16 @@ bool TheLurkerBelowBossCastsGeyserTrigger::IsActive()
 // Trigger will be active only if there are at least 3 tanks in the raid
 bool TheLurkerBelowBossIsSubmergedTrigger::IsActive()
 {
+    if (!botAI->IsTank(bot))
+        return false;
+
     Unit* lurker = AI_VALUE2(Unit*, "find target", "the lurker below");
     if (!lurker || lurker->getStandState() != UNIT_STAND_STATE_SUBMERGED)
         return false;
 
-    Player* mainTank = nullptr;
-    Player* firstAssistTank = nullptr;
-    Player* secondAssistTank = nullptr;
-
-    Group* group = bot->GetGroup();
-    if (!group)
-        return false;
-
-    for (GroupReference* ref = group->GetFirstMember(); ref; ref = ref->next())
-    {
-        Player* member = ref->GetSource();
-        if (!member || !member->IsAlive())
-            continue;
-
-        PlayerbotAI* memberAI = GET_PLAYERBOT_AI(member);
-        if (!memberAI)
-            continue;
-
-        if (!mainTank && memberAI->IsMainTank(member))
-            mainTank = member;
-        else if (!firstAssistTank && memberAI->IsAssistTankOfIndex(member, 0, true))
-            firstAssistTank = member;
-        else if (!secondAssistTank && memberAI->IsAssistTankOfIndex(member, 1, true))
-            secondAssistTank = member;
-    }
+    Player* mainTank = GetGroupMainTank(botAI, bot);
+    Player* firstAssistTank = GetGroupAssistTank(botAI, bot, 0);
+    Player* secondAssistTank = GetGroupAssistTank(botAI, bot, 1);
 
     if (!mainTank || !firstAssistTank || !secondAssistTank)
         return false;
@@ -173,51 +161,55 @@ bool TheLurkerBelowBossIsSubmergedTrigger::IsActive()
 
 bool TheLurkerBelowNeedToPrepareTimerForSpoutTrigger::IsActive()
 {
-    return AI_VALUE2(Unit*, "find target", "the lurker below") &&
-           IsMechanicTrackerBot(botAI, bot, SSC_MAP_ID, nullptr);
+    return IsMechanicTrackerBot(botAI, bot, SSC_MAP_ID) &&
+           AI_VALUE2(Unit*, "find target", "the lurker below");
 }
 
 // Leotheras the Blind
 
 bool LeotherasTheBlindBossIsInactiveTrigger::IsActive()
 {
-    return AI_VALUE2(Unit*, "find target", "greyheart spellbinder");
+    return IsMechanicTrackerBot(botAI, bot, SSC_MAP_ID) &&
+           AI_VALUE2(Unit*, "find target", "greyheart spellbinder");
 }
 
 bool LeotherasTheBlindBossTransformedIntoDemonFormTrigger::IsActive()
 {
+    if (bot->getClass() != CLASS_WARLOCK)
+        return false;
+
     if (!AI_VALUE2(Unit*, "find target", "leotheras the blind"))
         return false;
 
     if (GetLeotherasDemonFormTank(bot) != bot)
         return false;
 
-    return GetActiveLeotherasDemon(botAI);
+    return GetActiveLeotherasDemon(bot);
 }
 
 bool LeotherasTheBlindOnlyWarlockShouldTankDemonFormTrigger::IsActive()
 {
-    if (botAI->IsRanged(bot) || !botAI->IsTank(bot))
+    if (!botAI->IsTank(bot))
+        return false;
+
+    if (bot->HasAura(SPELL_INSIDIOUS_WHISPER))
         return false;
 
     if (!AI_VALUE2(Unit*, "find target", "leotheras the blind"))
         return false;
 
-    if (bot->HasAura(SPELL_INSIDIOUS_WHISPER))
-        return false;
-
     if (!GetLeotherasDemonFormTank(bot))
         return false;
 
-    return GetPhase2LeotherasDemon(botAI);
+    return GetPhase2LeotherasDemon(bot);
 }
 
 bool LeotherasTheBlindBossEngagedByRangedTrigger::IsActive()
 {
-    if (bot->HasAura(SPELL_INSIDIOUS_WHISPER))
+    if (!botAI->IsRanged(bot))
         return false;
 
-    if (!botAI->IsRanged(bot))
+    if (bot->HasAura(SPELL_INSIDIOUS_WHISPER))
         return false;
 
     Unit* leotheras = AI_VALUE2(Unit*, "find target", "leotheras the blind");
@@ -231,14 +223,14 @@ bool LeotherasTheBlindBossEngagedByRangedTrigger::IsActive()
 
 bool LeotherasTheBlindBossChannelingWhirlwindTrigger::IsActive()
 {
-    if (bot->HasAura(SPELL_INSIDIOUS_WHISPER))
-        return false;
-
-    if (botAI->IsTank(bot) && botAI->IsMelee(bot))
+    if (botAI->IsTank(bot))
         return false;
 
     Unit* leotheras = AI_VALUE2(Unit*, "find target", "leotheras the blind");
-    if (!leotheras || leotheras->HasAura(SPELL_LEOTHERAS_BANISHED))
+    if (!leotheras)
+        return false;
+
+    if (bot->HasAura(SPELL_INSIDIOUS_WHISPER))
         return false;
 
     return leotheras->HasAura(SPELL_WHIRLWIND) ||
@@ -247,10 +239,13 @@ bool LeotherasTheBlindBossChannelingWhirlwindTrigger::IsActive()
 
 bool LeotherasTheBlindBotHasTooManyChaosBlastStacksTrigger::IsActive()
 {
-    if (bot->HasAura(SPELL_INSIDIOUS_WHISPER))
+    if (botAI->IsRanged(bot))
         return false;
 
-    if (botAI->IsRanged(bot))
+    if (!AI_VALUE2(Unit*, "find target", "leotheras the blind"))
+        return false;
+
+    if (bot->HasAura(SPELL_INSIDIOUS_WHISPER))
         return false;
 
     Aura* chaosBlast = bot->GetAura(SPELL_CHAOS_BLAST);
@@ -260,7 +255,7 @@ bool LeotherasTheBlindBotHasTooManyChaosBlastStacksTrigger::IsActive()
     if (!GetLeotherasDemonFormTank(bot) && botAI->IsMainTank(bot))
         return false;
 
-    return GetPhase2LeotherasDemon(botAI);
+    return GetPhase2LeotherasDemon(bot);
 }
 
 bool LeotherasTheBlindInnerDemonHasAwakenedTrigger::IsActive()
@@ -271,89 +266,68 @@ bool LeotherasTheBlindInnerDemonHasAwakenedTrigger::IsActive()
 
 bool LeotherasTheBlindEnteredFinalPhaseTrigger::IsActive()
 {
-    if (bot->HasAura(SPELL_INSIDIOUS_WHISPER))
-        return false;
-
     if (botAI->IsHeal(bot))
         return false;
 
-    if (GetLeotherasDemonFormTank(bot) == bot)
+    if (!AI_VALUE2(Unit*, "find target", "leotheras the blind"))
         return false;
 
-    return GetPhase3LeotherasDemon(botAI) &&
-           GetLeotherasHuman(botAI);
+    if (bot->HasAura(SPELL_INSIDIOUS_WHISPER))
+        return false;
+
+    if (bot->getClass() == CLASS_WARLOCK && GetLeotherasDemonFormTank(bot) == bot)
+        return false;
+
+    return GetPhase3LeotherasDemon(bot);
 }
 
 bool LeotherasTheBlindDemonFormTankNeedsAggro::IsActive()
 {
-    if (bot->HasAura(SPELL_INSIDIOUS_WHISPER))
-        return false;
-
     if (bot->getClass() != CLASS_HUNTER)
         return false;
 
-    return AI_VALUE2(Unit*, "find target", "leotheras the blind");
+    if (!AI_VALUE2(Unit*, "find target", "leotheras the blind"))
+        return false;
+
+    return !bot->HasAura(SPELL_INSIDIOUS_WHISPER);
 }
 
 bool LeotherasTheBlindBossWipesAggroUponPhaseChangeTrigger::IsActive()
 {
-    return AI_VALUE2(Unit*, "find target", "leotheras the blind") &&
-           IsMechanicTrackerBot(botAI, bot, SSC_MAP_ID, nullptr);
+    return IsMechanicTrackerBot(botAI, bot, SSC_MAP_ID) &&
+           AI_VALUE2(Unit*, "find target", "leotheras the blind");
 }
 
 // Fathom-Lord Karathress
 
 bool FathomLordKarathressBossEngagedByMainTankTrigger::IsActive()
 {
-    return AI_VALUE2(Unit*, "find target", "fathom-lord karathress") &&
-           botAI->IsMainTank(bot);
+    return botAI->IsMainTank(bot) &&
+           AI_VALUE2(Unit*, "find target", "fathom-lord karathress");
 }
 
 bool FathomLordKarathressCaribdisEngagedByFirstAssistTankTrigger::IsActive()
 {
-    return AI_VALUE2(Unit*, "find target", "fathom-guard caribdis") &&
-           botAI->IsAssistTankOfIndex(bot, 0, false);
+    return botAI->IsAssistTankOfIndex(bot, 0, false) &&
+           AI_VALUE2(Unit*, "find target", "fathom-guard caribdis");
 }
 
 bool FathomLordKarathressSharkkisEngagedBySecondAssistTankTrigger::IsActive()
 {
-    return AI_VALUE2(Unit*, "find target", "fathom-guard sharkkis") &&
-           botAI->IsAssistTankOfIndex(bot, 1, false);
+    return botAI->IsAssistTankOfIndex(bot, 1, false) &&
+           AI_VALUE2(Unit*, "find target", "fathom-guard sharkkis");
 }
 
 bool FathomLordKarathressTidalvessEngagedByThirdAssistTankTrigger::IsActive()
 {
-    return AI_VALUE2(Unit*, "find target", "fathom-guard tidalvess") &&
-           botAI->IsAssistTankOfIndex(bot, 2, false);
+    return botAI->IsAssistTankOfIndex(bot, 2, false) &&
+           AI_VALUE2(Unit*, "find target", "fathom-guard tidalvess");
 }
 
 bool FathomLordKarathressCaribdisTankNeedsDedicatedHealerTrigger::IsActive()
 {
-    Unit* caribdis = AI_VALUE2(Unit*, "find target", "fathom-guard caribdis");
-    if (!caribdis)
-        return false;
-
-    if (!botAI->IsAssistHealOfIndex(bot, 0, true))
-        return false;
-
-    Player* firstAssistTank = nullptr;
-    if (Group* group = bot->GetGroup())
-    {
-        for (GroupReference* ref = group->GetFirstMember(); ref; ref = ref->next())
-        {
-            Player* member = ref->GetSource();
-            if (!member || !member->IsAlive())
-                continue;
-
-            if (botAI->IsAssistTankOfIndex(member, 0, false))
-            {
-                firstAssistTank = member;
-                break;
-            }
-        }
-    }
-
-    return firstAssistTank;
+    return botAI->IsAssistHealOfIndex(bot, 0, true) &&
+           AI_VALUE2(Unit*, "find target", "fathom-guard caribdis");
 }
 
 bool FathomLordKarathressPullingBossesTrigger::IsActive()
@@ -367,10 +341,10 @@ bool FathomLordKarathressPullingBossesTrigger::IsActive()
 
 bool FathomLordKarathressDeterminingKillOrderTrigger::IsActive()
 {
-    if (!AI_VALUE2(Unit*, "find target", "fathom-lord karathress"))
+    if (botAI->IsHeal(bot))
         return false;
 
-    if (botAI->IsHeal(bot))
+    if (!AI_VALUE2(Unit*, "find target", "fathom-lord karathress"))
         return false;
 
     if (botAI->IsDps(bot))
@@ -387,8 +361,8 @@ bool FathomLordKarathressDeterminingKillOrderTrigger::IsActive()
 
 bool FathomLordKarathressTanksNeedToEstablishAggroTrigger::IsActive()
 {
-    return AI_VALUE2(Unit*, "find target", "fathom-lord karathress") &&
-           IsMechanicTrackerBot(botAI, bot, SSC_MAP_ID, nullptr);
+    return IsMechanicTrackerBot(botAI, bot, SSC_MAP_ID) &&
+           AI_VALUE2(Unit*, "find target", "fathom-lord karathress");
 }
 
 // Morogrim Tidewalker
@@ -404,8 +378,8 @@ bool MorogrimTidewalkerPullingBossTrigger::IsActive()
 
 bool MorogrimTidewalkerBossEngagedByMainTankTrigger::IsActive()
 {
-    return AI_VALUE2(Unit*, "find target", "morogrim tidewalker") &&
-           botAI->IsMainTank(bot);
+    return botAI->IsMainTank(bot) &&
+           AI_VALUE2(Unit*, "find target", "morogrim tidewalker");
 }
 
 bool MorogrimTidewalkerWaterGlobulesAreIncomingTrigger::IsActive()
@@ -421,8 +395,11 @@ bool MorogrimTidewalkerWaterGlobulesAreIncomingTrigger::IsActive()
 
 bool LadyVashjBossEngagedByMainTankTrigger::IsActive()
 {
+    if (!botAI->IsMainTank(bot))
+        return false;
+
     return AI_VALUE2(Unit*, "find target", "lady vashj") &&
-           !IsLadyVashjInPhase2(botAI) && botAI->IsMainTank(bot);
+           !IsLadyVashjInPhase2(botAI);
 }
 
 bool LadyVashjBossEngagedByRangedInPhase1Trigger::IsActive()
@@ -439,10 +416,7 @@ bool LadyVashjCastsShockBlastOnHighestAggroTrigger::IsActive()
         IsLadyVashjInPhase2(botAI))
         return false;
 
-    if (!IsMainTankInSameSubgroup(bot))
-        return false;
-
-    return true;
+    return IsMainTankInSameSubgroup(botAI, bot);
 }
 
 bool LadyVashjBotHasStaticChargeTrigger::IsActive()
@@ -450,15 +424,16 @@ bool LadyVashjBotHasStaticChargeTrigger::IsActive()
     if (!AI_VALUE2(Unit*, "find target", "lady vashj"))
         return false;
 
-    if (Group* group = bot->GetGroup())
-    {
+    Group* group = bot->GetGroup();
+    if (!group)
+        return false;
+
     for (GroupReference* ref = group->GetFirstMember(); ref; ref = ref->next())
     {
         Player* member = ref->GetSource();
         if (member && member->HasAura(SPELL_STATIC_CHARGE))
             return true;
     }
-    }
 
     return false;
 }
@@ -500,9 +475,10 @@ bool LadyVashjTaintedElementalCheatTrigger::IsActive()
         return false;
 
     bool taintedPresent = false;
-    Unit* taintedUnit = AI_VALUE2(Unit*, "find target", "tainted elemental");
-    if (taintedUnit)
+    if (AI_VALUE2(Unit*, "find target", "tainted elemental"))
+    {
         taintedPresent = true;
+    }
     else
     {
         GuidVector corpses = AI_VALUE(GuidVector, "nearest corpses");
@@ -513,26 +489,20 @@ bool LadyVashjTaintedElementalCheatTrigger::IsActive()
             if (!object)
                 continue;
 
-            if (Creature* creature = object->ToCreature())
-            {
-                if (creature->GetEntry() == NPC_TAINTED_ELEMENTAL && !creature->IsAlive())
+            if (Creature* creature = object->ToCreature();
+                creature->GetEntry() == NPC_TAINTED_ELEMENTAL && !creature->IsAlive())
             {
                 taintedPresent = true;
                 break;
             }
         }
     }
-    }
 
     if (!taintedPresent)
         return false;
 
-    Group* group = bot->GetGroup();
-    if (!group)
-        return false;
-
-    return (GetDesignatedCoreLooter(group, botAI) == bot &&
-            !bot->HasItemCount(ITEM_TAINTED_CORE, 1, false));
+    return GetDesignatedCoreLooter(botAI, bot) == bot &&
+           !bot->HasItemCount(ITEM_TAINTED_CORE, 1, false);
 }
 
 bool LadyVashjTaintedCoreWasLootedTrigger::IsActive()
@@ -540,54 +510,24 @@ bool LadyVashjTaintedCoreWasLootedTrigger::IsActive()
     if (!AI_VALUE2(Unit*, "find target", "lady vashj") || !IsLadyVashjInPhase2(botAI))
         return false;
 
-    Group* group = bot->GetGroup();
-    if (!group)
-        return false;
+    auto coreHandlers = GetCoreHandlers(botAI, bot);
 
-    Player* designatedLooter = GetDesignatedCoreLooter(group, botAI);
-    Player* firstCorePasser = GetFirstTaintedCorePasser(group, botAI);
-    Player* secondCorePasser = GetSecondTaintedCorePasser(group, botAI);
-    Player* thirdCorePasser = GetThirdTaintedCorePasser(group, botAI);
-    Player* fourthCorePasser = GetFourthTaintedCorePasser(group, botAI);
+    bool isCoreHandler = false;
+    for (Player* handler : coreHandlers)
+        if (handler == bot)
+            isCoreHandler = true;
 
-    auto hasCore = [](Player* player) -> bool
-    {
-        return player && player->HasItemCount(ITEM_TAINTED_CORE, 1, false);
-    };
-
-    if (bot == designatedLooter)
-    {
-        if (!hasCore(bot))
+    if (!isCoreHandler)
         return false;
-    }
-    else if (bot == firstCorePasser)
-    {
-        if (hasCore(secondCorePasser) || hasCore(thirdCorePasser) ||
-            hasCore(fourthCorePasser))
-            return false;
-    }
-    else if (bot == secondCorePasser)
-    {
-        if (hasCore(thirdCorePasser) || hasCore(fourthCorePasser))
-            return false;
-    }
-    else if (bot == thirdCorePasser)
-    {
-        if (hasCore(fourthCorePasser))
-            return false;
-    }
-    else if (bot != fourthCorePasser)
-        return false;
-
-    if (AnyRecentCoreInInventory(group, botAI))
-        return true;
 
     // First and second passers move to positions as soon as the elemental appears
-    if (AI_VALUE2(Unit*, "find target", "tainted elemental") &&
-        (bot == firstCorePasser || bot == secondCorePasser))
+    Unit* tainted = AI_VALUE2(Unit*, "find target", "tainted elemental");
+    if (tainted && coreHandlers[0]->GetExactDist2d(tainted) < 5.0f &&
+        (bot == coreHandlers[1] || bot == coreHandlers[2]))
         return true;
 
-    return false;
+    // Main logic: run if core is in play for this bot or a prior handler
+    return AnyRecentCoreInInventory(botAI, bot);
 }
 
 bool LadyVashjTaintedCoreIsUnusableTrigger::IsActive()
@@ -599,18 +539,7 @@ bool LadyVashjTaintedCoreIsUnusableTrigger::IsActive()
     if (!IsLadyVashjInPhase2(botAI))
         return bot->HasItemCount(ITEM_TAINTED_CORE, 1, false);
 
-    Group* group = bot->GetGroup();
-    if (!group)
-        return false;
-
-    Player* coreHandlers[] =
-    {
-        GetDesignatedCoreLooter(group, botAI),
-        GetFirstTaintedCorePasser(group, botAI),
-        GetSecondTaintedCorePasser(group, botAI),
-        GetThirdTaintedCorePasser(group, botAI),
-        GetFourthTaintedCorePasser(group, botAI)
-    };
+    auto coreHandlers = GetCoreHandlers(botAI, bot);
 
     if (bot->HasItemCount(ITEM_TAINTED_CORE, 1, false))
     {
@@ -625,24 +554,6 @@ bool LadyVashjTaintedCoreIsUnusableTrigger::IsActive()
     return false;
 }
 
-bool LadyVashjNeedToResetCorePassingTrackersTrigger::IsActive()
-{
-    Unit* vashj = AI_VALUE2(Unit*, "find target", "lady vashj");
-    if (!vashj || IsLadyVashjInPhase2(botAI))
-        return false;
-
-    Group* group = bot->GetGroup();
-    if (!group)
-        return false;
-
-    return IsMechanicTrackerBot(botAI, bot, SSC_MAP_ID, nullptr) ||
-           GetDesignatedCoreLooter(group, botAI) == bot ||
-           GetFirstTaintedCorePasser(group, botAI) == bot ||
-           GetSecondTaintedCorePasser(group, botAI) == bot ||
-           GetThirdTaintedCorePasser(group, botAI) == bot ||
-           GetFourthTaintedCorePasser(group, botAI) == bot;
-}
-
 bool LadyVashjToxicSporebatsAreSpewingPoisonCloudsTrigger::IsActive()
 {
     return IsLadyVashjInPhase3(botAI);
@@ -653,8 +564,10 @@ bool LadyVashjBotIsEntangledInToxicSporesOrStaticChargeTrigger::IsActive()
     if (!AI_VALUE2(Unit*, "find target", "lady vashj"))
         return false;
 
-    if (Group* group = bot->GetGroup())
-    {
+    Group* group = bot->GetGroup();
+    if (!group)
+        return false;
+
     for (GroupReference* ref = group->GetFirstMember(); ref; ref = ref->next())
     {
         Player* member = ref->GetSource();
@@ -664,7 +577,6 @@ bool LadyVashjBotIsEntangledInToxicSporesOrStaticChargeTrigger::IsActive()
         if (botAI->IsMelee(member))
             return true;
     }
-    }
 
     return false;
 }

src/Ai/Raid/SerpentshrineCavern/Trigger/RaidSSCTriggers.h

@@ -1,3 +1,8 @@
+/*
+ * Copyright (C) 2016+ AzerothCore <www.azerothcore.org>, released under GNU AGPL v3 license, you may redistribute it
+ * and/or modify it under version 3 of the License, or (at your option), any later version.
+ */
+
 #ifndef _PLAYERBOT_RAIDSSCTRIGGERS_H
 #define _PLAYERBOT_RAIDSSCTRIGGERS_H
 
@@ -387,14 +392,6 @@ public:
     bool IsActive() override;
 };
 
-class LadyVashjNeedToResetCorePassingTrackersTrigger : public Trigger
-{
-public:
-    LadyVashjNeedToResetCorePassingTrackersTrigger(
-        PlayerbotAI* botAI) : Trigger(botAI, "lady vashj need to reset core passing trackers") {}
-    bool IsActive() override;
-};
-
 class LadyVashjToxicSporebatsAreSpewingPoisonCloudsTrigger : public Trigger
 {
 public:

src/Ai/Raid/SerpentshrineCavern/Util/RaidSSCHelpers.cpp

@@ -1,3 +1,8 @@
+/*
+ * Copyright (C) 2016+ AzerothCore <www.azerothcore.org>, released under GNU AGPL v3 license, you may redistribute it
+ * and/or modify it under version 3 of the License, or (at your option), any later version.
+ */
+
 #include "RaidSSCHelpers.h"
 #include "AiFactory.h"
 #include "Creature.h"
@@ -79,61 +84,54 @@ namespace SerpentShrineCavernHelpers
     std::unordered_map<uint32, time_t> leotherasDemonFormDpsWaitTimer;
     std::unordered_map<uint32, time_t> leotherasFinalPhaseDpsWaitTimer;
 
-    Unit* GetLeotherasHuman(PlayerbotAI* botAI)
+    Unit* GetLeotherasHuman(Player* bot)
     {
-        auto const& npcs =
-            botAI->GetAiObjectContext()->GetValue<GuidVector>("nearest hostile npcs")->Get();
-        for (auto const& guid : npcs)
-        {
-            Unit* unit = botAI->GetUnit(guid);
-            if (unit && unit->GetEntry() == NPC_LEOTHERAS_THE_BLIND &&
-                unit->IsInCombat() && !unit->HasAura(SPELL_METAMORPHOSIS))
-                return unit;
-        }
+        constexpr float searchRadius = 100.0f;
+        Creature* leotheras =
+            bot->FindNearestCreature(NPC_LEOTHERAS_THE_BLIND, searchRadius, true);
+
+        if (leotheras && leotheras->IsInCombat() &&
+            !leotheras->HasAura(SPELL_METAMORPHOSIS))
+            return leotheras;
+
         return nullptr;
     }
 
-    Unit* GetPhase2LeotherasDemon(PlayerbotAI* botAI)
+    Unit* GetPhase2LeotherasDemon(Player* bot)
     {
-        auto const& npcs =
-            botAI->GetAiObjectContext()->GetValue<GuidVector>("nearest hostile npcs")->Get();
-        for (auto const& guid : npcs)
-        {
-            Unit* unit = botAI->GetUnit(guid);
-            if (unit && unit->GetEntry() == NPC_LEOTHERAS_THE_BLIND &&
-                unit->HasAura(SPELL_METAMORPHOSIS))
-                return unit;
-        }
+        constexpr float searchRadius = 100.0f;
+        Creature* leotheras =
+            bot->FindNearestCreature(NPC_LEOTHERAS_THE_BLIND, searchRadius, true);
+
+        if (leotheras && leotheras->HasAura(SPELL_METAMORPHOSIS))
+            return leotheras;
+
         return nullptr;
     }
 
-    Unit* GetPhase3LeotherasDemon(PlayerbotAI* botAI)
+    Unit* GetPhase3LeotherasDemon(Player* bot)
     {
-        auto const& npcs =
-            botAI->GetAiObjectContext()->GetValue<GuidVector>("nearest hostile npcs")->Get();
-        for (auto const& guid : npcs)
-        {
-            Unit* unit = botAI->GetUnit(guid);
-            if (unit && unit->GetEntry() == NPC_SHADOW_OF_LEOTHERAS)
-                return unit;
-        }
-        return nullptr;
+        constexpr float searchRadius = 100.0f;
+        return bot->FindNearestCreature(NPC_SHADOW_OF_LEOTHERAS, searchRadius, true);
     }
 
-    Unit* GetActiveLeotherasDemon(PlayerbotAI* botAI)
+    Unit* GetActiveLeotherasDemon(Player* bot)
     {
-        Unit* phase2 = GetPhase2LeotherasDemon(botAI);
-        Unit* phase3 = GetPhase3LeotherasDemon(botAI);
+        Unit* phase2 = GetPhase2LeotherasDemon(bot);
+        Unit* phase3 = GetPhase3LeotherasDemon(bot);
         return phase2 ? phase2 : phase3;
     }
 
+    // (1) First priority is an assistant Warlock (real player or bot)
+    // (2) If no assistant Warlock, then look for any Warlock bot
     Player* GetLeotherasDemonFormTank(Player* bot)
     {
         Group* group = bot->GetGroup();
         if (!group)
             return nullptr;
 
-        // (1) First loop: Return the first assistant Warlock (real player or bot)
+        Player* fallbackWarlock = nullptr;
+
         for (GroupReference* ref = group->GetFirstMember(); ref; ref = ref->next())
         {
             Player* member = ref->GetSource();
@@ -142,21 +140,12 @@ namespace SerpentShrineCavernHelpers
 
             if (group->IsAssistant(member->GetGUID()))
                 return member;
+
+            if (!fallbackWarlock && GET_PLAYERBOT_AI(member))
+                fallbackWarlock = member;
         }
 
-        // (2) Fall back to first found bot Warlock
-        for (GroupReference* ref = group->GetFirstMember(); ref; ref = ref->next())
-        {
-            Player* member = ref->GetSource();
-            if (!member || !member->IsAlive() || !GET_PLAYERBOT_AI(member) ||
-                member->getClass() != CLASS_WARLOCK)
-                continue;
-
-            return member;
-        }
-
-        // (3) Return nullptr if none found
-        return nullptr;
+        return fallbackWarlock;
     }
 
     // Fathom-Lord Karathress
@@ -182,16 +171,15 @@ namespace SerpentShrineCavernHelpers
 
     // Lady Vashj <Coilfang Matron>
 
-    const Position VASHJ_PLATFORM_CENTER_POSITION = { 29.634f, -923.541f, 42.985f };
+    const Position VASHJ_PLATFORM_CENTER_POSITION = { 29.634f, -923.541f, 42.902f };
 
-    std::unordered_map<ObjectGuid, Position> vashjRangedPositions;
     std::unordered_map<ObjectGuid, bool> hasReachedVashjRangedPosition;
     std::unordered_map<uint32, ObjectGuid> nearestTriggerGuid;
     std::unordered_map<ObjectGuid, Position> intendedLineup;
     std::unordered_map<uint32, time_t> lastImbueAttempt;
-    std::unordered_map<uint32, time_t> lastCoreInInventoryTime;
+    std::unordered_map<ObjectGuid, time_t> lastCoreInInventoryTime;
 
-    bool IsMainTankInSameSubgroup(Player* bot)
+    bool IsMainTankInSameSubgroup(PlayerbotAI* botAI, Player* bot)
     {
         Group* group = bot->GetGroup();
         if (!group || !group->isRaidGroup())
@@ -210,12 +198,9 @@ namespace SerpentShrineCavernHelpers
             if (group->GetMemberGroup(member->GetGUID()) != botSubGroup)
                 continue;
 
-            if (PlayerbotAI* memberAI = GET_PLAYERBOT_AI(member))
-            {
-                if (memberAI->IsMainTank(member))
+            if (botAI->IsMainTank(member))
                 return true;
         }
-        }
 
         return false;
     }
@@ -277,38 +262,9 @@ namespace SerpentShrineCavernHelpers
         return false;
     }
 
-    bool AnyRecentCoreInInventory(Group* group, PlayerbotAI* botAI, uint32 graceSeconds)
-    {
-        Unit* vashj =
-            botAI->GetAiObjectContext()->GetValue<Unit*>("find target", "lady vashj")->Get();
-        if (!vashj)
-            return false;
-
-        if (group)
-        {
-            for (GroupReference* ref = group->GetFirstMember(); ref; ref = ref->next())
-            {
-                Player* member = ref->GetSource();
-                if (member && member->HasItemCount(ITEM_TAINTED_CORE, 1, false))
-                    return true;
-            }
-        }
-
-        const uint32 instanceId = vashj->GetMap()->GetInstanceId();
-        const time_t now = std::time(nullptr);
-
-        auto it = lastCoreInInventoryTime.find(instanceId);
-        if (it != lastCoreInInventoryTime.end())
-        {
-            if ((now - it->second) <= static_cast<time_t>(graceSeconds))
-                return true;
-        }
-
-        return false;
-    }
-
-    Player* GetDesignatedCoreLooter(Group* group, PlayerbotAI* botAI)
+    Player* GetDesignatedCoreLooter(PlayerbotAI* botAI, Player* bot)
     {
+        Group* group = bot->GetGroup();
         if (!group)
             return nullptr;
 
@@ -317,10 +273,15 @@ namespace SerpentShrineCavernHelpers
         if (!leaderGuid.IsEmpty())
             leader = ObjectAccessor::FindPlayer(leaderGuid);
 
+        // If cheats are disabled, the group leader will be the designated looter
         if (!botAI->HasCheat(BotCheatMask::raid))
             return leader;
 
-        Player* fallback = leader;
+        // Priority: (1) assistant melee DPS, (2) other melee DPS, (3) any ranged DPS
+        Player* meleeDpsAssistant = nullptr;
+        Player* meleeDps = nullptr;
+        Player* rangedDps = nullptr;
+
         for (GroupReference* ref = group->GetFirstMember(); ref; ref = ref->next())
         {
             Player* member = ref->GetSource();
@@ -331,22 +292,36 @@ namespace SerpentShrineCavernHelpers
             if (!memberAI)
                 continue;
 
-            if (memberAI->IsMelee(member) && memberAI->IsDps(member))
-                return member;
-
-            if (!fallback && memberAI->IsRangedDps(member))
-                fallback = member;
-        }
-
-        return fallback ? fallback : leader;
-    }
-
-    Player* GetFirstTaintedCorePasser(Group* group, PlayerbotAI* botAI)
+            if (!meleeDpsAssistant && memberAI->IsMelee(member) &&
+                memberAI->IsDps(member) && group->IsAssistant(member->GetGUID()))
             {
+                meleeDpsAssistant = member;
+                break;
+            }
+
+            if (!meleeDps && memberAI->IsMelee(member) && memberAI->IsDps(member))
+                meleeDps = member;
+
+            if (!rangedDps && memberAI->IsRangedDps(member))
+                rangedDps = member;
+        }
+
+        if (meleeDpsAssistant)
+            return meleeDpsAssistant;
+        if (meleeDps)
+            return meleeDps;
+        if (rangedDps)
+            return rangedDps;
+        return leader;
+    }
+
+    Player* GetFirstTaintedCorePasser(PlayerbotAI* botAI, Player* bot)
+    {
+        Group* group = bot->GetGroup();
         if (!group)
             return nullptr;
 
-        Player* designatedLooter = GetDesignatedCoreLooter(group, botAI);
+        Player* designatedLooter = GetDesignatedCoreLooter(botAI, bot);
 
         for (GroupReference* ref = group->GetFirstMember(); ref; ref = ref->next())
         {
@@ -355,32 +330,29 @@ namespace SerpentShrineCavernHelpers
                 continue;
 
             PlayerbotAI* memberAI = GET_PLAYERBOT_AI(member);
-            if (!memberAI)
-                continue;
-
-            if (memberAI->IsAssistHealOfIndex(member, 0, true))
+            if (memberAI && memberAI->IsAssistHealOfIndex(member, 0, true))
                 return member;
         }
 
         for (GroupReference* ref = group->GetFirstMember(); ref; ref = ref->next())
         {
             Player* member = ref->GetSource();
-            if (!member || !member->IsAlive() || !GET_PLAYERBOT_AI(member) ||
-                botAI->IsTank(member) || member == designatedLooter)
-                continue;
+            if (member && member->IsAlive() && GET_PLAYERBOT_AI(member) &&
+                !botAI->IsTank(member) && member != designatedLooter)
                 return member;
         }
 
         return nullptr;
     }
 
-    Player* GetSecondTaintedCorePasser(Group* group, PlayerbotAI* botAI)
+    Player* GetSecondTaintedCorePasser(PlayerbotAI* botAI, Player* bot)
     {
+        Group* group = bot->GetGroup();
         if (!group)
             return nullptr;
 
-        Player* designatedLooter = GetDesignatedCoreLooter(group, botAI);
-        Player* firstCorePasser = GetFirstTaintedCorePasser(group, botAI);
+        Player* designatedLooter = GetDesignatedCoreLooter(botAI, bot);
+        Player* firstCorePasser = GetFirstTaintedCorePasser(botAI, bot);
 
         for (GroupReference* ref = group->GetFirstMember(); ref; ref = ref->next())
         {
@@ -390,34 +362,31 @@ namespace SerpentShrineCavernHelpers
                 continue;
 
             PlayerbotAI* memberAI = GET_PLAYERBOT_AI(member);
-            if (!memberAI)
-                continue;
-
-            if (memberAI->IsAssistHealOfIndex(member, 1, true))
+            if (memberAI && memberAI->IsAssistHealOfIndex(member, 1, true))
                 return member;
         }
 
         for (GroupReference* ref = group->GetFirstMember(); ref; ref = ref->next())
         {
             Player* member = ref->GetSource();
-            if (!member || !member->IsAlive() || !GET_PLAYERBOT_AI(member) ||
-                botAI->IsTank(member) || member == designatedLooter ||
-                member == firstCorePasser)
-                continue;
+            if (member && member->IsAlive() && GET_PLAYERBOT_AI(member) &&
+                !botAI->IsTank(member) && member != designatedLooter &&
+                member != firstCorePasser)
                 return member;
         }
 
         return nullptr;
     }
 
-    Player* GetThirdTaintedCorePasser(Group* group, PlayerbotAI* botAI)
+    Player* GetThirdTaintedCorePasser(PlayerbotAI* botAI, Player* bot)
     {
+        Group* group = bot->GetGroup();
         if (!group)
             return nullptr;
 
-        Player* designatedLooter = GetDesignatedCoreLooter(group, botAI);
-        Player* firstCorePasser = GetFirstTaintedCorePasser(group, botAI);
-        Player* secondCorePasser = GetSecondTaintedCorePasser(group, botAI);
+        Player* designatedLooter = GetDesignatedCoreLooter(botAI, bot);
+        Player* firstCorePasser = GetFirstTaintedCorePasser(botAI, bot);
+        Player* secondCorePasser = GetSecondTaintedCorePasser(botAI, bot);
 
         for (GroupReference* ref = group->GetFirstMember(); ref; ref = ref->next())
         {
@@ -427,35 +396,32 @@ namespace SerpentShrineCavernHelpers
                 continue;
 
             PlayerbotAI* memberAI = GET_PLAYERBOT_AI(member);
-            if (!memberAI)
-                continue;
-
-            if (memberAI->IsAssistHealOfIndex(member, 2, true))
+            if (memberAI && memberAI->IsAssistHealOfIndex(member, 2, true))
                 return member;
         }
 
         for (GroupReference* ref = group->GetFirstMember(); ref; ref = ref->next())
         {
             Player* member = ref->GetSource();
-            if (!member || !member->IsAlive() || !GET_PLAYERBOT_AI(member) ||
-                botAI->IsTank(member) || member == designatedLooter ||
-                member == firstCorePasser || member == secondCorePasser)
-                continue;
+            if (member && member->IsAlive() && GET_PLAYERBOT_AI(member) &&
+                !botAI->IsTank(member) && member != designatedLooter &&
+                member != firstCorePasser && member != secondCorePasser)
                 return member;
         }
 
         return nullptr;
     }
 
-    Player* GetFourthTaintedCorePasser(Group* group, PlayerbotAI* botAI)
+    Player* GetFourthTaintedCorePasser(PlayerbotAI* botAI, Player* bot)
     {
+        Group* group = bot->GetGroup();
         if (!group)
             return nullptr;
 
-        Player* designatedLooter = GetDesignatedCoreLooter(group, botAI);
-        Player* firstCorePasser = GetFirstTaintedCorePasser(group, botAI);
-        Player* secondCorePasser = GetSecondTaintedCorePasser(group, botAI);
-        Player* thirdCorePasser = GetThirdTaintedCorePasser(group, botAI);
+        Player* designatedLooter = GetDesignatedCoreLooter(botAI, bot);
+        Player* firstCorePasser = GetFirstTaintedCorePasser(botAI, bot);
+        Player* secondCorePasser = GetSecondTaintedCorePasser(botAI, bot);
+        Player* thirdCorePasser = GetThirdTaintedCorePasser(botAI, bot);
 
         for (GroupReference* ref = group->GetFirstMember(); ref; ref = ref->next())
         {
@@ -466,27 +432,75 @@ namespace SerpentShrineCavernHelpers
                 continue;
 
             PlayerbotAI* memberAI = GET_PLAYERBOT_AI(member);
-            if (!memberAI)
-                continue;
-
-            if (memberAI->IsAssistRangedDpsOfIndex(member, 0, true))
+            if (memberAI && memberAI->IsAssistRangedDpsOfIndex(member, 0, true))
                 return member;
         }
 
         for (GroupReference* ref = group->GetFirstMember(); ref; ref = ref->next())
         {
             Player* member = ref->GetSource();
-            if (!member || !member->IsAlive() || !GET_PLAYERBOT_AI(member) ||
-                botAI->IsTank(member) || member == designatedLooter ||
-                member == firstCorePasser || member == secondCorePasser ||
-                member == thirdCorePasser)
-                continue;
+            if (member && member->IsAlive() && GET_PLAYERBOT_AI(member) &&
+                !botAI->IsTank(member) && member != designatedLooter &&
+                member != firstCorePasser && member != secondCorePasser &&
+                member != thirdCorePasser)
                 return member;
         }
 
         return nullptr;
     }
 
+    std::array<Player*, 5> GetCoreHandlers(PlayerbotAI* botAI, Player* bot)
+    {
+        return
+        {
+            GetDesignatedCoreLooter(botAI, bot),
+            GetFirstTaintedCorePasser(botAI, bot),
+            GetSecondTaintedCorePasser(botAI, bot),
+            GetThirdTaintedCorePasser(botAI, bot),
+            GetFourthTaintedCorePasser(botAI, bot)
+        };
+    }
+
+    // Checks if any bot from earlier in the passing sequence has the Tainted Core or
+    // had it within the prior 3 seconds so the chain is not broken when the Core is in transit
+    bool AnyRecentCoreInInventory(PlayerbotAI* botAI, Player* bot)
+    {
+        Unit* vashj =
+            botAI->GetAiObjectContext()->GetValue<Unit*>("find target", "lady vashj")->Get();
+        if (!vashj)
+            return false;
+
+        auto coreHandlers = GetCoreHandlers(botAI, bot);
+
+        int8 myIndex = -1;
+        for (int8 i = 0; i < 5; ++i)
+            if (coreHandlers[i] && coreHandlers[i] == bot)
+                myIndex = i;
+
+        if (myIndex == -1)
+            return false;
+
+        const time_t now = std::time(nullptr);
+        constexpr uint8 lookbackSeconds = 3;
+
+        for (int8 i = 0; i <= myIndex; ++i)
+        {
+            Player* handler = coreHandlers[i];
+            if (!handler)
+                continue;
+
+            if (handler->HasItemCount(ITEM_TAINTED_CORE, 1, false))
+                return true;
+
+            auto it = lastCoreInInventoryTime.find(handler->GetGUID());
+            if (it != lastCoreInInventoryTime.end() &&
+                (now - it->second) <= static_cast<time_t>(lookbackSeconds))
+                return true;
+        }
+
+        return false;
+    }
+
     const std::vector<uint32> SHIELD_GENERATOR_DB_GUIDS =
     {
         47482, // NW
@@ -510,10 +524,7 @@ namespace SerpentShrineCavernHelpers
                 continue;
 
             GameObject* go = bounds.first->second;
-            if (!go)
-                continue;
-
-            if (go->GetGoState() != GO_STATE_READY)
+            if (!go || go->GetGoState() != GO_STATE_READY)
                 continue;
 
             GeneratorInfo info;
@@ -529,7 +540,7 @@ namespace SerpentShrineCavernHelpers
 
     // Returns the nearest active Shield Generator to the bot
     // Active generators are powered by NPC_WORLD_INVISIBLE_TRIGGER creatures,
-    // which depawn after use
+    // which despawn after use
     Unit* GetNearestActiveShieldGeneratorTriggerByEntry(Unit* reference)
     {
         if (!reference)

src/Ai/Raid/SerpentshrineCavern/Util/RaidSSCHelpers.h

@@ -1,3 +1,8 @@
+/*
+ * Copyright (C) 2016+ AzerothCore <www.azerothcore.org>, released under GNU AGPL v3 license, you may redistribute it
+ * and/or modify it under version 3 of the License, or (at your option), any later version.
+ */
+
 #ifndef _PLAYERBOT_RAIDSSCHELPERS_H_
 #define _PLAYERBOT_RAIDSSCHELPERS_H_
 
@@ -64,9 +69,6 @@ namespace SerpentShrineCavernHelpers
 
         // Warlock
         SPELL_CURSE_OF_EXHAUSTION    = 18223,
-
-        // Item
-        SPELL_HEAVY_NETHERWEAVE_NET  = 31368,
     };
 
     enum SerpentShrineCavernNPCs
@@ -105,9 +107,6 @@ namespace SerpentShrineCavernHelpers
     {
         // Lady Vashj <Coilfang Matron>
         ITEM_TAINTED_CORE            = 31088,
-
-        // Tailoring
-        ITEM_HEAVY_NETHERWEAVE_NET   = 24269,
     };
 
     constexpr uint32 SSC_MAP_ID = 548;
@@ -134,10 +133,10 @@ namespace SerpentShrineCavernHelpers
     extern std::unordered_map<uint32, time_t> leotherasHumanFormDpsWaitTimer;
     extern std::unordered_map<uint32, time_t> leotherasDemonFormDpsWaitTimer;
     extern std::unordered_map<uint32, time_t> leotherasFinalPhaseDpsWaitTimer;
-    Unit* GetLeotherasHuman(PlayerbotAI* botAI);
-    Unit* GetPhase2LeotherasDemon(PlayerbotAI* botAI);
-    Unit* GetPhase3LeotherasDemon(PlayerbotAI* botAI);
-    Unit* GetActiveLeotherasDemon(PlayerbotAI* botAI);
+    Unit* GetLeotherasHuman(Player* bot);
+    Unit* GetPhase2LeotherasDemon(Player* bot);
+    Unit* GetPhase3LeotherasDemon(Player* bot);
+    Unit* GetActiveLeotherasDemon(Player* bot);
     Player* GetLeotherasDemonFormTank(Player* bot);
 
     // Fathom-Lord Karathress
@@ -158,25 +157,26 @@ namespace SerpentShrineCavernHelpers
     extern std::unordered_map<ObjectGuid, uint8> tidewalkerRangedStep;
 
     // Lady Vashj <Coilfang Matron>
-    constexpr float VASHJ_PLATFORM_Z = 42.985f;
+    constexpr float VASHJ_PLATFORM_CENTER_Z = 42.902f;
+    constexpr float VASHJ_PLATFORM_EDGE_Z = 41.097f;
     extern const Position VASHJ_PLATFORM_CENTER_POSITION;
-    extern std::unordered_map<ObjectGuid, Position> vashjRangedPositions;
     extern std::unordered_map<ObjectGuid, bool> hasReachedVashjRangedPosition;
     extern std::unordered_map<uint32, ObjectGuid> nearestTriggerGuid;
     extern std::unordered_map<ObjectGuid, Position> intendedLineup;
     extern std::unordered_map<uint32, time_t> lastImbueAttempt;
-    extern std::unordered_map<uint32, time_t> lastCoreInInventoryTime;
-    bool IsMainTankInSameSubgroup(Player* bot);
+    extern std::unordered_map<ObjectGuid, time_t> lastCoreInInventoryTime;
+    bool IsMainTankInSameSubgroup(PlayerbotAI* botAI, Player* bot);
     bool IsLadyVashjInPhase1(PlayerbotAI* botAI);
     bool IsLadyVashjInPhase2(PlayerbotAI* botAI);
     bool IsLadyVashjInPhase3(PlayerbotAI* botAI);
     bool IsValidLadyVashjCombatNpc(Unit* unit, PlayerbotAI* botAI);
-    bool AnyRecentCoreInInventory(Group* group, PlayerbotAI* botAI, uint32 graceSeconds = 3);
-    Player* GetDesignatedCoreLooter(Group* group, PlayerbotAI* botAI);
-    Player* GetFirstTaintedCorePasser(Group* group, PlayerbotAI* botAI);
-    Player* GetSecondTaintedCorePasser(Group* group, PlayerbotAI* botAI);
-    Player* GetThirdTaintedCorePasser(Group* group, PlayerbotAI* botAI);
-    Player* GetFourthTaintedCorePasser(Group* group, PlayerbotAI* botAI);
+    Player* GetDesignatedCoreLooter(PlayerbotAI* botAI, Player* bot);
+    Player* GetFirstTaintedCorePasser(PlayerbotAI* botAI, Player* bot);
+    Player* GetSecondTaintedCorePasser(PlayerbotAI* botAI, Player* bot);
+    Player* GetThirdTaintedCorePasser(PlayerbotAI* botAI, Player* bot);
+    Player* GetFourthTaintedCorePasser(PlayerbotAI* botAI, Player* bot);
+    std::array<Player*, 5> GetCoreHandlers(PlayerbotAI* botAI, Player* bot);
+    bool AnyRecentCoreInInventory(PlayerbotAI* botAI, Player* bot);
     struct GeneratorInfo { ObjectGuid guid; float x, y, z; };
     extern const std::vector<uint32> SHIELD_GENERATOR_DB_GUIDS;
     std::vector<GeneratorInfo> GetAllGeneratorInfosByDbGuids(

src/Bot/PlayerbotMgr.cpp

@@ -1796,7 +1796,7 @@ PlayerbotAI* PlayerbotsMgr::GetPlayerbotAI(Player* player)
     if (itr != _playerbotsAIMap.end())
     {
         if (itr->second->IsBotAI())
-            return reinterpret_cast<PlayerbotAI*>(itr->second);
+            return dynamic_cast<PlayerbotAI*>(itr->second);
     }
 
     return nullptr;
@@ -1812,7 +1812,7 @@ PlayerbotMgr* PlayerbotsMgr::GetPlayerbotMgr(Player* player)
     if (itr != _playerbotsMgrMap.end())
     {
         if (!itr->second->IsBotAI())
-            return reinterpret_cast<PlayerbotMgr*>(itr->second);
+            return dynamic_cast<PlayerbotMgr*>(itr->second);
     }
 
     return nullptr;

src/Mgr/Guild/GuildTaskMgr.cpp

@@ -1070,7 +1070,7 @@ void GuildTaskMgr::CheckKillTaskInternal(Player* player, Unit* victim)
     if (!victim->IsCreature())
         return;
 
-    Creature* creature = reinterpret_cast<Creature*>(victim);
+    Creature* creature = dynamic_cast<Creature*>(victim);
     if (!creature)
         return;
 

src/Mgr/Travel/TravelNode.cpp

@@ -1753,9 +1753,8 @@ void TravelNodeMap::generateTransportNodes()
     for (auto const& itr : *sObjectMgr->GetGameObjectTemplates())
     {
         GameObjectTemplate const* data = &itr.second;
-        if (data && (data->type == GAMEOBJECT_TYPE_TRANSPORT || data->type == GAMEOBJECT_TYPE_MO_TRANSPORT))
-        {
-            TransportAnimation const* animation = sTransportMgr->GetTransportAnimInfo(itr.first);
+        if (!data || (data->type != GAMEOBJECT_TYPE_TRANSPORT && data->type != GAMEOBJECT_TYPE_MO_TRANSPORT))
+            continue;
 
         uint32 pathId = data->moTransport.taxiPathId;
         float moveSpeed = data->moTransport.moveSpeed;
@@ -1764,125 +1763,20 @@ void TravelNodeMap::generateTransportNodes()
 
         TaxiPathNodeList const& path = sTaxiPathNodesByPath[pathId];
 
+        // Keep only transports with taxi paths (boats/zeppelins).
+        if (path.empty())
+            continue;
+
         std::vector<WorldPosition> ppath;
         TravelNode* prevNode = nullptr;
 
-            // Elevators/Trams
-            if (path.empty())
-            {
-                if (animation)
-                {
-                    TransportPathContainer aPath = animation->Path;
-                    float timeStart;
-
-                    for (auto& transport : WorldPosition().getGameObjectsNear(0, itr.first))
-                    {
-                        prevNode = nullptr;
-                        WorldPosition basePos(transport->mapid, transport->posX, transport->posY, transport->posZ,
-                                              transport->orientation);
-                        WorldPosition lPos = WorldPosition();
-
-                        for (auto& p : aPath)
-                        {
-                            float dx = -1 * p.second->X;
-                            float dy = -1 * p.second->Y;
-
-                            WorldPosition pos =
-                                WorldPosition(basePos.GetMapId(), basePos.GetPositionX() + dx,
-                                              basePos.GetPositionY() + dy, basePos.GetPositionZ() + p.second->Z,
-                                              basePos.GetOrientation());
-
-                            if (prevNode)
-                            {
-                                ppath.push_back(pos);
-                            }
-
-                            if (pos.distance(&lPos) == 0)
-                            {
-                                TravelNode* node =
-                                    TravelNodeMap::instance().addNode(pos, data->name, true, true, true, itr.first);
-
-                                if (!prevNode)
-                                {
-                                    ppath.push_back(pos);
-                                    timeStart = p.second->TimeSeg;
-                                }
-                                else
-                                {
-                                    float totalTime = (p.second->TimeSeg - timeStart) / 1000.0f;
-
-                                    TravelNodePath travelPath(0.1f, totalTime, (uint8)TravelNodePathType::transport,
-                                                              itr.first, true);
-                                    node->setPathTo(prevNode, travelPath);
-                                    ppath.clear();
-                                    ppath.push_back(pos);
-                                    timeStart = p.second->TimeSeg;
-                                }
-
-                                prevNode = node;
-                            }
-
-                            lPos = pos;
-                        }
-
-                        if (prevNode)
-                        {
-                            for (auto& p : aPath)
-                            {
-                                float dx = -1 * p.second->X;
-                                float dy = -1 * p.second->Y;
-                                WorldPosition pos =
-                                    WorldPosition(basePos.GetMapId(), basePos.GetPositionX() + dx,
-                                                  basePos.GetPositionY() + dy, basePos.GetPositionZ() + p.second->Z,
-                                                  basePos.GetOrientation());
-
-                                ppath.push_back(pos);
-
-                                if (pos.distance(&lPos) == 0)
-                                {
-                                    TravelNode* node =
-                                        TravelNodeMap::instance().addNode(pos, data->name, true, true, true, itr.first);
-                                    if (node != prevNode)
-                                    {
-                                        if (p.second->TimeSeg < timeStart)
-                                            timeStart = 0;
-
-                                        float totalTime = (p.second->TimeSeg - timeStart) / 1000.0f;
-
-                                        TravelNodePath travelPath(0.1f, totalTime, (uint8)TravelNodePathType::transport,
-                                                                  itr.first, true);
-                                        travelPath.setPath(ppath);
-                                        node->setPathTo(prevNode, travelPath);
-                                        ppath.clear();
-                                        ppath.push_back(pos);
-                                        timeStart = p.second->TimeSeg;
-                                    }
-                                }
-
-                                lPos = pos;
-                            }
-                        }
-
-                        ppath.clear();
-                    }
-                }
-            }
-            else  // Boats/Zepelins
-            {
         // Loop over the path and connect stop locations.
         for (auto& p : path)
         {
             WorldPosition pos = WorldPosition(p->mapid, p->x, p->y, p->z, 0);
 
-                    // if (data->displayId == 3015)
-                    //     pos.setZ(pos.getZ() + 6.0f);
-                    // else if (data->displayId == 3031)
-                    //     pos.setZ(pos.getZ() - 17.0f);
-
             if (prevNode)
-                    {
                 ppath.push_back(pos);
-                    }
 
             if (p->delay > 0)
             {
@@ -1905,18 +1799,13 @@ void TravelNodeMap::generateTransportNodes()
             }
         }
 
-                if (prevNode)
-                {
+        if (!prevNode)
+            continue;
+
         // Continue from start until first stop and connect to end.
         for (auto& p : path)
         {
             WorldPosition pos = WorldPosition(p->mapid, p->x, p->y, p->z, 0);
-
-                        // if (data->displayId == 3015)
-                        //     pos.setZ(pos.getZ() + 6.0f);
-                        // else if (data->displayId == 3031)
-                        //     pos.setZ(pos.getZ() - 17.0f);
-
             ppath.push_back(pos);
 
             if (p->delay > 0)
@@ -1925,20 +1814,16 @@ void TravelNodeMap::generateTransportNodes()
 
                 if (node != prevNode)
                 {
-                                TravelNodePath travelPath(0.1f, 0.0, (uint8)TravelNodePathType::transport, itr.first,
-                                                          true);
+                    TravelNodePath travelPath(0.1f, 0.0, (uint8)TravelNodePathType::transport, itr.first, true);
                     travelPath.setPathAndCost(ppath, moveSpeed);
 
                     node->setPathTo(prevNode, travelPath);
                 }
             }
         }
-                }
         ppath.clear();
     }
 }
-    }
-}
 
 void TravelNodeMap::generateZoneMeanNodes()
 {