fix(Core/Entities): contested guards attacking after bg/recent pvp (#7518)

* fix(Core/Entities): contested guards attacking after bg/recent pvp

* fix(Core/Entities): contested guards attacking after bg/recent pvp

* Update Unit.cpp

* fix(Core/Entities): contested guards attacking after bg/recent pvp

* fix(Core/Entities): contested guards attacking after bg/recent pvp

* Update Unit.cpp

src/server/game/Entities/Unit/Unit.cpp

@@ -16393,9 +16393,21 @@ void Unit::SetContestedPvP(Player* attackedPlayer)
 {
     Player* player = GetCharmerOrOwnerPlayerOrPlayerItself();
 
-    if (!player || (attackedPlayer && (attackedPlayer == player || (player->duel && player->duel->opponent == attackedPlayer))))
+    if (!player || ((attackedPlayer && (attackedPlayer == player || (player->duel && player->duel->opponent == attackedPlayer))) || player->InBattleground()))
         return;
 
+    // check if there any guards that should care about the contested flag on player
+    std::list<Unit*> targets;
+    Acore::NearestVisibleDetectableContestedGuardUnitCheck u_check(this);
+    Acore::UnitListSearcher<Acore::NearestVisibleDetectableContestedGuardUnitCheck> searcher(this, targets, u_check);
+    Cell::VisitAllObjects(this, searcher, MAX_AGGRO_RADIUS);
+
+    // return if there are no contested guards found
+    if (!targets.size())
+    {
+        return;
+    }
+
     player->SetContestedPvPTimer(30000);
     if (!player->HasUnitState(UNIT_STATE_ATTACK_PLAYER))
     {

src/server/game/Grids/Notifiers/GridNotifiers.h

@@ -1114,6 +1114,30 @@ namespace Acore
         NearestHostileUnitInAttackDistanceCheck(NearestHostileUnitInAttackDistanceCheck const&);
     };
 
+    class NearestVisibleDetectableContestedGuardUnitCheck
+    {
+    public:
+        explicit NearestVisibleDetectableContestedGuardUnitCheck(Unit const* unit) : me(unit) {}
+        bool operator()(Unit* u)
+        {
+            if (!u->CanSeeOrDetect(me, true, true, false))
+            {
+                return false;
+            }
+
+            if (!u->IsContestedGuard())
+            {
+                return false;
+            }
+
+            return true;
+        }
+
+    private:
+        Unit const* me;
+        NearestVisibleDetectableContestedGuardUnitCheck(NearestVisibleDetectableContestedGuardUnitCheck const&);
+    };
+
     class AnyAssistCreatureInRangeCheck
     {
     public: