From f1fc76f58cd15bfb37d00ca8931ee30c5746900c Mon Sep 17 00:00:00 2001
From: insunaa <insuna@no.capfr.fr>
Date: Sat, 13 Jan 2024 18:47:32 +0100
Subject: [PATCH] Spells: Ensure that Corruption and Seed of Corruption are
 interchangeable

---
 src/game/Entities/Unit.cpp |  2 +-
 src/game/Spells/SpellMgr.h | 12 ++++++++++++
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/src/game/Entities/Unit.cpp b/src/game/Entities/Unit.cpp
index 91b13eb89d8..d198fa30f82 100644
--- a/src/game/Entities/Unit.cpp
+++ b/src/game/Entities/Unit.cpp
@@ -5633,7 +5633,7 @@ bool Unit::RemoveNoStackAurasDueToAuraHolder(SpellAuraHolder* holder)
             {
                 // holder cannot remove higher/stronger rank if it isn't from the same caster
                 // judgement excluded due to invalid comparison of dummy auras
-                if (specific != SPELL_JUDGEMENT && IsSimilarExistingAuraStronger(holder, existing)) // TROLOLO
+                if (!IsSpellSpecificInterchangeable(specific) && IsSimilarExistingAuraStronger(holder, existing)) // TROLOLO
                     return false;
 
                 if (!diminished && sSpellMgr.IsSpellAnotherRankOfSpell(spellId, existingSpellId) && sSpellMgr.IsSpellHigherRankOfSpell(existingSpellId, spellId))
diff --git a/src/game/Spells/SpellMgr.h b/src/game/Spells/SpellMgr.h
index 53cb74accdd..ac82f335104 100644
--- a/src/game/Spells/SpellMgr.h
+++ b/src/game/Spells/SpellMgr.h
@@ -2068,6 +2068,18 @@ inline bool IsSpellSpecificIdentical(SpellSpecific specific, SpellSpecific speci
     return false;
 }
 
+inline bool IsSpellSpecificInterchangeable(SpellSpecific specific)
+{
+    switch (specific)
+    {
+        case SPELL_CORRUPTION_DEBUFF:
+        case SPELL_JUDGEMENT:
+            return true;
+        default: break;
+    }
+    return false;
+}
+
 inline bool IsSimilarAuraEffect(SpellEntry const* entry, uint32 effect, SpellEntry const* entry2, uint32 effect2)
 {
     return (entry2->EffectApplyAuraName[effect2] && entry->EffectApplyAuraName[effect] &&