Core/Unit: damage immune improvements (9f5df023b746d324588f175e264c62205b69e165 follow up)

- Handling checked in sniffs: Spell 63710 Void Barrier vs 49143 Frost Strike
  * Send spell miss immune only if spell consists of damage effects
- Checked with 348 Immolate:
  * No packets sent if damage immune, aura is applied normally

Also... who the fuck uses 0 to compare against pointers

(cherry picked from commit ca1c4525c7da320da2c0a55bfd803879e3cf60b2)

Core/Unit: fix build

Ctrl-S failure
(cherry picked from commit f3bdd705c0e3ab28585406ae8e08da44a09b14df)

1 files changed, 6 insertions, 0 deletions

diff --git a/src/server/scripts/Northrend/IcecrownCitadel/boss_sindragosa.cpp b/src/server/scripts/Northrend/IcecrownCitadel/boss_sindragosa.cpp
index f9af80eaca1..da5359364ff 100644
--- a/src/server/scripts/Northrend/IcecrownCitadel/boss_sindragosa.cpp
+++ b/src/server/scripts/Northrend/IcecrownCitadel/boss_sindragosa.cpp
@@ -1103,6 +1103,12 @@ class spell_sindragosa_s_fury : public SpellScriptLoader
                 if (!GetHitUnit()->IsAlive() || !_targetCount)
                     return;
 
+                if (GetHitUnit()->IsImmunedToDamage(GetSpellInfo()))
+                {
+                    GetCaster()->SendSpellDamageImmune(GetHitUnit(), GetSpellInfo()->Id, false);
+                    return;
+                }
+
                 float resistance = float(GetHitUnit()->GetResistance(SpellSchoolMask(GetSpellInfo()->SchoolMask)));
                 uint32 minResistFactor = uint32((resistance / (resistance + 510.0f)) * 10.0f) * 2;
                 uint32 randomResist = urand(0, (9 - minResistFactor) * 100) / 100 + minResistFactor;