Core/Scripts: improvements on the Thorim script

Improvements done to initial work by joschiwald:

- Fixed stormhammer casting and visuals
- Fixed spell credits
- Implemented removal of Impale when HP is higher than 90%
- Corrected faction templates for the pre combat creatures
- Implemeted Leap on the arena adds (thanks to joschiwald for implementing conditions)
- Scripted lighting charge using AuraScript periodic
- Fixed timings
- Corrections on the hallway encounters (added knockback immunity to minibosses too)
- Fixed multiple blizzards issue
- Lever will now reset properly, should players fail to get inside. This allows the door to be opened more than once during the combat
- Corrections in the outro event
- Implemented paralytic field traps on the hallway.
- Implemented Ancient Gate of the Keepers opening.
- Changed blizzard bunny targetting to conditions entirely.
- Removed obsolete scripts
- Standards: delete spell script names by ScriptName instead of spell_id
- Swapped factions for pre-adds (alliance should get horde trash and vs)
- Fixed Leap setting home position for adds
- Removed a bunch of magic numbers
- Runic Colossus should finish current Runic Explosion before beginning to attack
- Fixed UpdateAI logic to put it in line with other scripts (ie don't stop casts)

Special thanks to:
- chaodhib for the blizzard trigger waypoints and investigation on spell radius
- Malcrom for creating the Conditions Creator :P

Closes #15008
Closes #17072

1 files changed, 8 insertions, 0 deletions

diff --git a/src/server/game/Spells/SpellMgr.cpp b/src/server/game/Spells/SpellMgr.cpp
index 4c580d25669..8a5e5c8e411 100644
--- a/src/server/game/Spells/SpellMgr.cpp
+++ b/src/server/game/Spells/SpellMgr.cpp
@@ -3732,6 +3732,14 @@ void SpellMgr::LoadSpellInfoCorrections()
         spellInfo->AttributesEx |= SPELL_ATTR1_DISPEL_AURAS_ON_IMMUNITY;
     });
 
+    // Blizzard (Thorim)
+    ApplySpellFix({ 62576, 62602 }, [](SpellInfo* spellInfo)
+    {
+        // DBC data is wrong for EFFECT_0, it's a different dynobject target than EFFECT_1
+        // Both effects should be shared by the same DynObject
+        spellInfo->Effects[EFFECT_0].TargetA = SpellImplicitTargetInfo(TARGET_DEST_CASTER_LEFT);
+    });
+
     // Spinning Up (Mimiron)
     ApplySpellFix({ 63414 }, [](SpellInfo* spellInfo)
     {