From aedbf45750536d3e50f25b00ef0b862e6a8bea2a Mon Sep 17 00:00:00 2001
From: Ovahlord <dreadkiller@gmx.de>
Date: Sun, 20 May 2018 15:10:15 +0200
Subject: [PATCH] Core/Spells: * updated and fixed Exorcism damage forumlar *
 added missing coefficients for Shield of the Righteous and Crusader Strike *
 updated coefficients for Holy Wrath

---
 .../custom/custom_2018_05_20_00_world.sql     | 12 +++++
 src/server/scripts/Spells/spell_paladin.cpp   | 54 +++++++++++++++++++
 2 files changed, 66 insertions(+)
 create mode 100644 sql/updates/world/custom/custom_2018_05_20_00_world.sql

diff --git a/sql/updates/world/custom/custom_2018_05_20_00_world.sql b/sql/updates/world/custom/custom_2018_05_20_00_world.sql
new file mode 100644
index 00000000000..5f1b6ab7c82
--- /dev/null
+++ b/sql/updates/world/custom/custom_2018_05_20_00_world.sql
@@ -0,0 +1,12 @@
+DELETE FROM `spell_bonus_data` WHERE `entry` IN (53600, 35395, 879);
+INSERT INTO `spell_bonus_data` (`entry`, `direct_bonus`, `dot_bonus`, `ap_bonus`, `ap_dot_bonus`, `comments`) VALUES
+(53600, 0, 0, 0.1, 0, 'Paladin - Shield of the Righteous'),
+(35395, 0, 0, 0.0, 0, 'Paladin - Crusader Strike'),
+(879, 0, 0, 0, 0, 'Paladin - Exorcism');
+
+-- Holy Wrath
+UPDATE `spell_bonus_data` SET `direct_bonus`= 0.61, `dot_bonus`= 0, `ap_bonus`= 0, `ap_dot_bonus`= 0 WHERE `entry`= 2812;
+
+DELETE FROM `spell_script_names` WHERE `ScriptName`= 'spell_pal_exorcism';
+INSERT INTO `spell_script_names` (`spell_id`, `ScriptName`) VALUES
+(879, 'spell_pal_exorcism');
diff --git a/src/server/scripts/Spells/spell_paladin.cpp b/src/server/scripts/Spells/spell_paladin.cpp
index b139841d461..d1e46731aca 100644
--- a/src/server/scripts/Spells/spell_paladin.cpp
+++ b/src/server/scripts/Spells/spell_paladin.cpp
@@ -1443,6 +1443,59 @@ class spell_pal_judgements_of_the_wise : public SpellScriptLoader
         }
 };
 
+// 879 - Exorcism
+class spell_pal_exorcism : public SpellScriptLoader
+{
+    public:
+        spell_pal_exorcism() : SpellScriptLoader("spell_pal_exorcism") { }
+
+        class spell_pal_exorcism_SpellScript : public SpellScript
+        {
+            PrepareSpellScript(spell_pal_exorcism_SpellScript);
+
+            void ChangeDamage(SpellEffIndex /*effIndex*/)
+            {
+                if (Unit* caster = GetCaster())
+                {
+                    int32 damage = GetHitDamage();
+
+                    float ap = caster->GetTotalAttackPowerValue(BASE_ATTACK) * 0.344f;
+                    float holy = caster->SpellBaseDamageBonusDone(SPELL_SCHOOL_MASK_HOLY);
+                    holy += GetHitUnit()->SpellBaseDamageBonusTaken(SPELL_SCHOOL_MASK_HOLY);
+                    holy *= 0.344f;
+
+                    SetHitDamage(damage + (holy > ap ? holy : ap));
+                }
+            }
+
+            void ApplyDotBonus()
+            {
+                if (Unit* target = GetHitUnit())
+                    if (Unit* caster = GetCaster())
+                        if (Aura* aura = target->GetAura(GetSpellInfo()->Id))
+                        {
+                            float ap = caster->GetTotalAttackPowerValue(BASE_ATTACK) * 0.0688f;
+                            float holy = caster->SpellBaseDamageBonusDone(SPELL_SCHOOL_MASK_HOLY);
+                            holy += GetHitUnit()->SpellBaseDamageBonusTaken(SPELL_SCHOOL_MASK_HOLY);
+                            holy *= 0.0688f;
+
+                            aura->GetEffect(EFFECT_1)->SetAmount(aura->GetEffect(EFFECT_1)->GetAmount() + holy > ap ? holy : ap);
+                        }
+            }
+
+            void Register() override
+            {
+                OnEffectHitTarget += SpellEffectFn(spell_pal_exorcism_SpellScript::ChangeDamage, EFFECT_0, SPELL_EFFECT_SCHOOL_DAMAGE);
+                AfterHit += SpellHitFn(spell_pal_exorcism_SpellScript::ApplyDotBonus);
+            }
+        };
+
+        SpellScript* GetSpellScript() const override
+        {
+            return new spell_pal_exorcism_SpellScript();
+        }
+};
+
 void AddSC_paladin_spell_scripts()
 {
     //new spell_pal_ardent_defender();
@@ -1454,6 +1507,7 @@ void AddSC_paladin_spell_scripts()
     new spell_pal_divine_sacrifice();
     new spell_pal_divine_storm();
     new spell_pal_divine_storm_dummy();
+    new spell_pal_exorcism();
     new spell_pal_exorcism_and_holy_wrath_damage();
     new spell_pal_eye_for_an_eye();
     new spell_pal_glyph_of_holy_light();