Scripts/Northrend: talk event for quest A Suitable Test Subject (#20462)

- When using the quest item for A Suitable Test Subject and the spell aura vanishes,
  Bloodmage Laurith should turn toward the player and whisper a line.
- This is handled via spell event for Bloodspore Ruination (45997)

Author: Wyreth

sql/updates/world/3.3.5/2017_10_29_00_world.sql

@@ -0,0 +1,10 @@
+-- quest: A Suitable Test Subject (11719)
+DELETE FROM `spell_script_names` WHERE `ScriptName`="spell_q11719_bloodspore_ruination_45997";
+INSERT INTO `spell_script_names` (`spell_id`,`ScriptName`) VALUES
+(45997, "spell_q11719_bloodspore_ruination_45997");
+
+UPDATE `creature_template` SET `ScriptName`="npc_bloodmage_laurith" WHERE `entry`=25381;
+
+DELETE FROM `creature_text` WHERE `CreatureID`=25381;
+INSERT INTO `creature_text` (`CreatureID`,`GroupID`,`ID`,`Text`,`Type`,`Language`,`Probability`,`Emote`,`Duration`,`Sound`,`BroadcastTextId`,`TextRange`,`comment`) VALUES
+(25381, 0, 0, "How positively awful! You were totally incapacitated? Weak? Hot flashes?", 15, 0, 100, 21, 0, 0, 24992, 0, "Bloodmage Laurith");

src/server/scripts/Northrend/zone_borean_tundra.cpp

@@ -2382,6 +2382,108 @@ class spell_windsoul_totem_aura : public SpellScriptLoader
     }
 };
 
+enum BloodsporeRuination
+{
+    NPC_BLOODMAGE_LAURITH   = 25381,
+    SAY_BLOODMAGE_LAURITH   = 0,
+    EVENT_TALK              = 1,
+    EVENT_RESET_ORIENTATION
+};
+
+class spell_q11719_bloodspore_ruination_45997 : public SpellScriptLoader
+{
+public:
+    spell_q11719_bloodspore_ruination_45997() : SpellScriptLoader("spell_q11719_bloodspore_ruination_45997") { }
+
+    class spell_q11719_bloodspore_ruination_45997_SpellScript : public SpellScript
+    {
+        PrepareSpellScript(spell_q11719_bloodspore_ruination_45997_SpellScript);
+
+        void HandleEffect(SpellEffIndex /*effIndex*/)
+        {
+            if (Unit* caster = GetCaster())
+                if (Creature* laurith = caster->FindNearestCreature(NPC_BLOODMAGE_LAURITH, 100.0f))
+                    laurith->AI()->SetGUID(caster->GetGUID());
+        }
+
+        void Register() override
+        {
+            OnEffectHit += SpellEffectFn(spell_q11719_bloodspore_ruination_45997_SpellScript::HandleEffect, EFFECT_1, SPELL_EFFECT_SEND_EVENT);
+        }
+    };
+
+    SpellScript* GetSpellScript() const override
+    {
+        return new spell_q11719_bloodspore_ruination_45997_SpellScript();
+    }
+};
+
+class npc_bloodmage_laurith : public CreatureScript
+{
+public:
+    npc_bloodmage_laurith() : CreatureScript("npc_bloodmage_laurith") { }
+
+    struct npc_bloodmage_laurithAI : public ScriptedAI
+    {
+        npc_bloodmage_laurithAI(Creature* creature) : ScriptedAI(creature) { }
+
+        void Reset() override
+        {
+            _events.Reset();
+            _playerGUID.Clear();
+        }
+
+        void SetGUID(ObjectGuid guid, int32 /*action*/) override
+        {
+            if (!_playerGUID.IsEmpty())
+                return;
+
+            _playerGUID = guid;
+
+            if (Player* player = ObjectAccessor::GetPlayer(*me, _playerGUID))
+                me->SetFacingToObject(player);
+
+            _events.ScheduleEvent(EVENT_TALK, Seconds(1));
+        }
+
+        void UpdateAI(uint32 diff) override
+        {
+            if (UpdateVictim())
+            {
+                DoMeleeAttackIfReady();
+                return;
+            }
+
+            _events.Update(diff);
+
+            if (uint32 eventId = _events.ExecuteEvent())
+            {
+                switch (eventId)
+                {
+                    case EVENT_TALK:
+                        if (Player* player = ObjectAccessor::GetPlayer(*me, _playerGUID))
+                            Talk(SAY_BLOODMAGE_LAURITH, player);
+                        _playerGUID.Clear();
+                        _events.ScheduleEvent(EVENT_RESET_ORIENTATION, Seconds(5));
+                        break;
+                    case EVENT_RESET_ORIENTATION:
+                        me->SetFacingTo(me->GetHomePosition().GetOrientation());
+                        break;
+                }
+            }
+        }
+
+        private:
+            EventMap _events;
+            ObjectGuid _playerGUID;
+    };
+
+    CreatureAI* GetAI(Creature* creature) const override
+    {
+        return new npc_bloodmage_laurithAI(creature);
+    }
+};
+
 void AddSC_borean_tundra()
 {
     new npc_sinkhole_kill_credit();
@@ -2407,4 +2509,6 @@ void AddSC_borean_tundra()
     new npc_warmage_coldarra();
     new npc_hidden_cultist();
     new spell_windsoul_totem_aura();
+    new spell_q11719_bloodspore_ruination_45997();
+    new npc_bloodmage_laurith();
 }