[3.3.5] Core/Spells: Fix Shattered Barrier triggering on dispel

Prevents Shattered Barrier talent from triggering when Ice Barrier is dispelled. It should only trigger when Ice Barrier is removed by damage(destroyed).
Closes #14555
Closes #14605

2 files changed, 25 insertions, 10 deletions

diff --git a/src/server/game/Spells/Auras/SpellAuras.cpp b/src/server/game/Spells/Auras/SpellAuras.cpp
index e6f01dea33e..4eea5eed03d 100644
--- a/src/server/game/Spells/Auras/SpellAuras.cpp
+++ b/src/server/game/Spells/Auras/SpellAuras.cpp
@@ -1419,16 +1419,6 @@ void Aura::HandleAuraSpecificMods(AuraApplication const* aurApp, Unit* caster, b
                     default:
                         break;
                 }
-                if (!caster)
-                    break;
-                // Ice barrier - dispel/absorb remove
-                if (removeMode == AURA_REMOVE_BY_ENEMY_SPELL && GetSpellInfo()->SpellFamilyFlags[1] & 0x1)
-                {
-                    // Shattered Barrier
-                    if (AuraEffect* dummy = caster->GetDummyAuraEffect(SPELLFAMILY_MAGE, 2945, 0))
-                        if (roll_chance_i(dummy->GetSpellInfo()->ProcChance))
-                            caster->CastSpell(target, 55080, true, NULL, GetEffect(0));
-                }
                 break;
             case SPELLFAMILY_WARRIOR:
                 if (!caster)
diff --git a/src/server/scripts/Spells/spell_mage.cpp b/src/server/scripts/Spells/spell_mage.cpp
index 4edbf8822f7..c45442e1f80 100644
--- a/src/server/scripts/Spells/spell_mage.cpp
+++ b/src/server/scripts/Spells/spell_mage.cpp
@@ -45,11 +45,17 @@ enum MageSpells
     SPELL_MAGE_WORGEN_FORM                       = 32819,
     SPELL_MAGE_SHEEP_FORM                        = 32820,
     SPELL_MAGE_GLYPH_OF_ETERNAL_WATER            = 70937,
+    SPELL_MAGE_SHATTERED_BARRIER                 = 55080,
     SPELL_MAGE_SUMMON_WATER_ELEMENTAL_PERMANENT  = 70908,
     SPELL_MAGE_SUMMON_WATER_ELEMENTAL_TEMPORARY  = 70907,
     SPELL_MAGE_GLYPH_OF_BLAST_WAVE               = 62126,
 };
 
+enum MageSpellIcons
+{
+    SPELL_ICON_MAGE_SHATTERED_BARRIER = 2945
+};
+
 // Incanter's Absorbtion
 class spell_mage_incanters_absorbtion_base_AuraScript : public AuraScript
 {
@@ -321,6 +327,13 @@ class spell_mage_ice_barrier : public SpellScriptLoader
         {
             PrepareAuraScript(spell_mage_ice_barrier_AuraScript);
 
+            bool Validate(SpellInfo const* /*spellInfo*/) override
+            {
+                if (!sSpellMgr->GetSpellInfo(SPELL_MAGE_SHATTERED_BARRIER))
+                    return false;
+                return true;
+            }
+
             void CalculateAmount(AuraEffect const* aurEff, int32& amount, bool& canBeRecalculated)
             {
                 canBeRecalculated = false;
@@ -341,10 +354,22 @@ class spell_mage_ice_barrier : public SpellScriptLoader
                 }
             }
 
+            void AfterRemove(AuraEffect const* aurEff, AuraEffectHandleModes /*mode*/)
+            {
+                // Shattered Barrier
+                // Procs only if removed by damage.
+                if (aurEff->GetAmount() <= 0)
+                    if (Unit* caster = GetCaster())
+                        if (AuraEffect* dummy = caster->GetDummyAuraEffect(SPELLFAMILY_MAGE, SPELL_ICON_MAGE_SHATTERED_BARRIER, EFFECT_0))
+                            if (roll_chance_i(dummy->GetSpellInfo()->ProcChance))
+                                caster->CastSpell(GetTarget(), SPELL_MAGE_SHATTERED_BARRIER, true, nullptr, aurEff);
+            }
+
             void Register() override
             {
                 DoEffectCalcAmount += AuraEffectCalcAmountFn(spell_mage_ice_barrier_AuraScript::CalculateAmount, EFFECT_0, SPELL_AURA_SCHOOL_ABSORB);
                 AfterEffectAbsorb += AuraEffectAbsorbFn(spell_mage_ice_barrier_AuraScript::Trigger, EFFECT_0);
+                AfterEffectRemove += AuraEffectRemoveFn(spell_mage_ice_barrier_AuraScript::AfterRemove, EFFECT_0, SPELL_AURA_SCHOOL_ABSORB, AURA_EFFECT_HANDLE_REAL);
             }
         };