fix(Core/Spells): Curse of Pain (#16844)

* fix(Core/Spells): Curse of Pain

* ocd

data/sql/updates/pending_db_world/rev_1690624654192328000.sql

@@ -0,0 +1,3 @@
+--
+DELETE FROM `spell_script_names` WHERE `spell_id` = 38048;
+INSERT INTO `spell_script_names` (`spell_id`,`ScriptName`) VALUES (38048, 'spell_gen_curse_of_pain');

src/server/scripts/Spells/spell_generic.cpp

@@ -4884,6 +4884,39 @@ class spell_gen_shriveling_gaze : public AuraScript
     }
 };
 
+// 38048 - Curse of Pain
+enum CurseOfPain
+{
+    SPELL_CURSE_OF_PAIN           = 38048,
+};
+
+class spell_gen_curse_of_pain : public AuraScript
+{
+    PrepareAuraScript(spell_gen_curse_of_pain);
+
+    bool Validate(SpellInfo const* /*spellInfo*/) override
+    {
+        return ValidateSpellInfo({ SPELL_CURSE_OF_PAIN });
+    }
+
+    void OnPeriodic(AuraEffect const* /*aurEff*/)
+    {
+        Unit* target = GetTarget();
+        if (target && target->ToPlayer())
+        {
+            if (target->GetHealthPct() < 50.f)
+            {
+                target->RemoveAurasDueToSpell(SPELL_CURSE_OF_PAIN);
+            }
+        }
+    }
+
+    void Register() override
+    {
+        OnEffectPeriodic += AuraEffectPeriodicFn(spell_gen_curse_of_pain::OnPeriodic, EFFECT_0, SPELL_AURA_PERIODIC_DAMAGE);
+    }
+};
+
 void AddSC_generic_spell_scripts()
 {
     RegisterSpellScript(spell_silithyst);
@@ -5029,4 +5062,5 @@ void AddSC_generic_spell_scripts()
     RegisterSpellScript(spell_freezing_circle);
     RegisterSpellScript(spell_gen_threshalisk_charge);
     RegisterSpellScript(spell_gen_shriveling_gaze);
+    RegisterSpellScript(spell_gen_curse_of_pain);
 }