From 540eda2af9a21148a3d75a3db1964465de6064ad Mon Sep 17 00:00:00 2001
From: AG <43139552+AGandrup@users.noreply.github.com>
Date: Wed, 20 Sep 2023 22:48:23 +0200
Subject: [PATCH] fix(Core/Unit): Added bluewall AoE check (#17064)

* Added bluewall AoE check

- AoE spells/abilities done by non-flagged players now has no effect on pvp flagged players.

* Crash fix

* Update Unit.cpp

Allow spells with flag "SPELL_ATTR5_IGNORE_AREA_EFFECT_PVP_CHECK" to pass this check.
---
 src/server/game/Entities/Unit/Unit.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/server/game/Entities/Unit/Unit.cpp b/src/server/game/Entities/Unit/Unit.cpp
index 57674dd6d..a42fb492d 100644
--- a/src/server/game/Entities/Unit/Unit.cpp
+++ b/src/server/game/Entities/Unit/Unit.cpp
@@ -13956,6 +13956,9 @@ bool Unit::_IsValidAttackTarget(Unit const* target, SpellInfo const* bySpell, Wo
     // additional checks - only PvP case
     if (playerAffectingAttacker && playerAffectingTarget)
     {
+        if (!IsPvP() && bySpell && bySpell->IsAffectingArea() && !bySpell->HasAttribute(SPELL_ATTR5_IGNORE_AREA_EFFECT_PVP_CHECK))
+            return false;
+
         if (target->IsPvP())
             return true;