Core/Misc: Fixed resistance calculate for Mutated Transformation and Twilight Bloodbolt (#24717)

Ref: 9f7b464a6aa5b64bf5ec5c0f586853fbc71029c6
- Implemented a new SpellScript hook that allow control Resistance/Absorb amount of a damage spell.

(cherry picked from commit d81a9e5bc3b3e13b47332b3e7817bd0a0b228cbc)

1 files changed, 14 insertions, 1 deletions

diff --git a/src/server/game/Spells/Spell.cpp b/src/server/game/Spells/Spell.cpp
index af14b186ce2..4690176be01 100644
--- a/src/server/game/Spells/Spell.cpp
+++ b/src/server/game/Spells/Spell.cpp
@@ -2609,7 +2609,7 @@ void Spell::TargetInfo::DoDamageAndTriggers(Spell* spell)
             else
             {
                 // Add bonuses and fill damageInfo struct
-                caster->CalculateSpellDamageTaken(&damageInfo, spell->m_damage, spell->m_spellInfo, spell->m_attackType, IsCrit);
+                caster->CalculateSpellDamageTaken(&damageInfo, spell->m_damage, spell->m_spellInfo, spell->m_attackType, IsCrit, spell);
                 Unit::DealDamageMods(damageInfo.attacker, damageInfo.target, damageInfo.damage, &damageInfo.absorb);
 
                 hitMask |= createProcHitMask(&damageInfo, MissCondition);
@@ -8387,6 +8387,19 @@ std::string Spell::GetDebugInfo() const
     return sstr.str();
 }
 
+void Spell::CallScriptOnResistAbsorbCalculateHandlers(DamageInfo const& damageInfo, uint32& resistAmount, int32& absorbAmount)
+{
+    for (auto scritr = m_loadedScripts.begin(); scritr != m_loadedScripts.end(); ++scritr)
+    {
+        (*scritr)->_PrepareScriptCall(SPELL_SCRIPT_HOOK_ON_RESIST_ABSORB_CALCULATION);
+        auto hookItrEnd = (*scritr)->OnCalculateResistAbsorb.end(), hookItr = (*scritr)->OnCalculateResistAbsorb.begin();
+        for (; hookItr != hookItrEnd; ++hookItr)
+            hookItr->Call(*scritr, damageInfo, resistAmount, absorbAmount);
+
+        (*scritr)->_FinishScriptCall();
+    }
+}
+
 namespace Trinity
 {