Core/Spells: Convert hunter "Improved Mend Pet" in spell script

Closes #5597
Closes #9006
Closes #10346

sql/updates/world/2013_08_11_02_world_spell_misc.sql

@@ -0,0 +1,5 @@
+DELETE FROM `spell_script_names` WHERE `spell_id`=-19572;
+INSERT INTO `spell_script_names`(`spell_id`, `ScriptName`) VALUES
+(-19572,'spell_hun_improved_mend_pet');
+
+UPDATE `spell_proc_event` SET `procFlags`=0x40000 WHERE `entry` = -19572;

src/server/game/Entities/Unit/Unit.cpp

@@ -6235,15 +6235,6 @@ bool Unit::HandleDummyAuraProc(Unit* victim, uint32 damage, AuraEffect* triggere
         {
             switch (dummySpell->SpellIconID)
             {
-                case 267: // Improved Mend Pet
-                {
-                    int32 chance = triggeredByAura->GetSpellInfo()->Effects[triggeredByAura->GetEffIndex()].CalcValue();
-                    if (!roll_chance_i(chance))
-                        return false;
-
-                    triggered_spell_id = 24406;
-                    break;
-                }
                 case 2236: // Thrill of the Hunt
                 {
                     if (!procSpell)

src/server/scripts/Spells/spell_hunter.cpp

@@ -39,6 +39,7 @@ enum HunterSpells
     SPELL_HUNTER_CHIMERA_SHOT_VIPER                 = 53358,
     SPELL_HUNTER_CHIMERA_SHOT_SCORPID               = 53359,
     SPELL_HUNTER_GLYPH_OF_ASPECT_OF_THE_VIPER       = 56851,
+    SPELL_HUNTER_IMPROVED_MEND_PET                  = 24406,
     SPELL_HUNTER_INVIGORATION_TRIGGERED             = 53398,
     SPELL_HUNTER_MASTERS_CALL_TRIGGERED             = 62305,
     SPELL_HUNTER_MISDIRECTION_PROC                  = 35079,
@@ -50,7 +51,7 @@ enum HunterSpells
     SPELL_HUNTER_READINESS                          = 23989,
     SPELL_HUNTER_SNIPER_TRAINING_R1                 = 53302,
     SPELL_HUNTER_SNIPER_TRAINING_BUFF_R1            = 64418,
-    SPELL_DRAENEI_GIFT_OF_THE_NAARU                 = 59543,
+    SPELL_DRAENEI_GIFT_OF_THE_NAARU                 = 59543
 };
 
 // 13161 - Aspect of the Beast
@@ -270,6 +271,46 @@ class spell_hun_disengage : public SpellScriptLoader
         }
 };
 
+// -19572 - Improved Mend Pet
+class spell_hun_improved_mend_pet : public SpellScriptLoader
+{
+    public:
+        spell_hun_improved_mend_pet() : SpellScriptLoader("spell_hun_improved_mend_pet") { }
+
+        class spell_hun_improved_mend_pet_AuraScript : public AuraScript
+        {
+            PrepareAuraScript(spell_hun_improved_mend_pet_AuraScript);
+
+            bool Validate(SpellInfo const* /*spellInfo*/) OVERRIDE
+            {
+                if (!sSpellMgr->GetSpellInfo(SPELL_HUNTER_IMPROVED_MEND_PET))
+                    return false;
+                return true;
+            }
+
+            bool CheckProc(ProcEventInfo& /*eventInfo*/)
+            {
+                return roll_chance_i(GetEffect(EFFECT_0)->GetAmount());
+            }
+
+            void HandleProc(AuraEffect const* aurEff, ProcEventInfo& /*eventInfo*/)
+            {
+                PreventDefaultAction();
+                GetTarget()->CastSpell(GetTarget(), SPELL_HUNTER_IMPROVED_MEND_PET, true, NULL, aurEff);
+            }
+
+            void Register() OVERRIDE
+            {
+                DoCheckProc += AuraCheckProcFn(spell_hun_improved_mend_pet_AuraScript::CheckProc);
+                OnEffectProc += AuraEffectProcFn(spell_hun_improved_mend_pet_AuraScript::HandleProc, EFFECT_0, SPELL_AURA_DUMMY);
+            }
+        };
+
+        AuraScript* GetAuraScript() const OVERRIDE
+        {
+            return new spell_hun_improved_mend_pet_AuraScript();
+        }
+};
 // 53412 - Invigoration
 class spell_hun_invigoration : public SpellScriptLoader
 {
@@ -808,6 +849,7 @@ void AddSC_hunter_spell_scripts()
     new spell_hun_ascpect_of_the_viper();
     new spell_hun_chimera_shot();
     new spell_hun_disengage();
+    new spell_hun_improved_mend_pet();
     new spell_hun_invigoration();
     new spell_hun_last_stand_pet();
     new spell_hun_masters_call();