fix(Core/Spells): Script Lord Valthalak's Amulet (#17431)

* fix(Core/Spells): Script Lord Valthalak's Amulet

* cs

data/sql/updates/pending_db_world/rev_1696582271290131600.sql

@@ -0,0 +1,7 @@
+-- Lord Valthalak's Amulet
+DELETE FROM `spell_script_names` WHERE `spell_id`=27360;
+INSERT INTO `spell_script_names` (`spell_id`, `ScriptName`) VALUES (27360, 'spell_gen_valthalak_amulet');
+
+DELETE FROM `conditions` WHERE `SourceTypeOrReferenceId` = 17 AND `SourceGroup` = 0 AND `SourceEntry` = 27360;
+INSERT INTO `conditions` (`SourceTypeOrReferenceId`, `SourceGroup`, `SourceEntry`, `SourceId`, `ElseGroup`, `ConditionTypeOrReference`, `ConditionTarget`, `ConditionValue1`, `ConditionValue2`, `ConditionValue3`, `NegativeCondition`, `ErrorType`, `ErrorTextId`, `ScriptName`, `Comment`) VALUES
+(17, 0, 27360, 0, 0, 29, 0, 16073, 50, 0, 1, 0, 0, '', 'Allow using Lord Valthalak\'s Amulet only if there is no Spirit of Lord Valthalak within 50 yards.');

src/server/game/Spells/SpellInfoCorrections.cpp

@@ -4572,6 +4572,12 @@ void SpellMgr::LoadSpellInfoCorrections()
         spellInfo->RangeEntry = sSpellRangeStore.LookupEntry(13); // 50000yd
     });
 
+    // Instill Lord Valthalak's Spirit DND
+    ApplySpellFix({ 27360 }, [](SpellInfo* spellInfo)
+    {
+        spellInfo->ChannelInterruptFlags |= AURA_INTERRUPT_FLAG_MOVE;
+    });
+
     for (uint32 i = 0; i < GetSpellInfoStoreSize(); ++i)
     {
         SpellInfo* spellInfo = mSpellInfoMap[i];

src/server/scripts/Spells/spell_generic.cpp

@@ -4997,6 +4997,32 @@ class spell_gen_spirit_of_competition_winner : public SpellScript
     }
 };
 
+// 27360 - Lord Valthalak's Amulet
+enum Valthalak
+{
+    SPELL_INSTILL_LORD_VALTHALAK_SPIRIT = 27360,
+    NPC_LORD_VALTHALAK                  = 16042
+};
+
+class spell_gen_valthalak_amulet : public SpellScript
+{
+    PrepareSpellScript(spell_gen_valthalak_amulet)
+
+    SpellCastResult CheckCast()
+    {
+        if (Unit* target = GetExplTargetUnit())
+            if (target->GetEntry() == NPC_LORD_VALTHALAK && target->isDead())
+                return SPELL_CAST_OK;
+
+        return SPELL_FAILED_BAD_TARGETS;
+    }
+
+    void Register() override
+    {
+        OnCheckCast += SpellCheckCastFn(spell_gen_valthalak_amulet::CheckCast);
+    }
+};
+
 void AddSC_generic_spell_scripts()
 {
     RegisterSpellScript(spell_silithyst);
@@ -5145,4 +5171,5 @@ void AddSC_generic_spell_scripts()
     RegisterSpellScript(spell_gen_curse_of_pain);
     RegisterSpellScript(spell_gen_spirit_of_competition_participant);
     RegisterSpellScript(spell_gen_spirit_of_competition_winner);
+    RegisterSpellScript(spell_gen_valthalak_amulet);
 }