Core/Scripts: Archmage Arugal event script (#17922)

Implement boss script for Archmage Arugal
- add yells used in boss event to DB
- use proper spells instead of only melee fighting
- add DataType in shadowfang_keep.h
- add event scheduling in the script

By Riztazz
Closes issue #17916

(cherry picked from commit 2b26894eb1eaf8572f61d303882878659692cdd3)

3 files changed, 132 insertions, 2 deletions

diff --git a/sql/updates/world/master/2017_12_10_01_world_2016_11_03_01_world_335.sql b/sql/updates/world/master/2017_12_10_01_world_2016_11_03_01_world_335.sql
new file mode 100644
index 00000000000..058c388799e
--- /dev/null
+++ b/sql/updates/world/master/2017_12_10_01_world_2016_11_03_01_world_335.sql
@@ -0,0 +1,12 @@
+-- Archmage Arugal, NPC entry 4275
+SET @Arugal := 4275;
+
+UPDATE `creature_template` SET `ScriptName` = 'boss_archmage_arugal' WHERE `entry`= @Arugal;
+
+UPDATE `creature_text` SET `comment`= 'Archmage Arugal - Fenrus the Devourer dies' WHERE `CreatureID`= @Arugal AND `GroupID`= 0;
+
+DELETE FROM `creature_text` WHERE `CreatureID` = @Arugal AND `GroupID` IN (1,2,3);
+INSERT INTO `creature_text` (`CreatureID`,`GroupID`,`ID`,`Text`,`Type`,`Language`,`Probability`,`Emote`,`Duration`,`Sound`,`BroadcastTextId`,`TextRange`, `comment`) VALUES 
+(@Arugal,1,0,'You, too, shall serve!', 14,0,100,0,0,0,6115,0,'Archmage Arugal - Aggro'),
+(@Arugal,2,0,'Release your rage!',     14,0,100,0,0,0,6535,0,'Archmage Arugal - Transforms player into a Worgen'),
+(@Arugal,3,0,'Another falls!',         14,0,100,0,0,0,6116,0,'Archmage Arugal - Killing a player');
diff --git a/src/server/scripts/EasternKingdoms/ShadowfangKeep/shadowfang_keep.cpp b/src/server/scripts/EasternKingdoms/ShadowfangKeep/shadowfang_keep.cpp
index b923f6072ee..6e55ae0e96d 100644
--- a/src/server/scripts/EasternKingdoms/ShadowfangKeep/shadowfang_keep.cpp
+++ b/src/server/scripts/EasternKingdoms/ShadowfangKeep/shadowfang_keep.cpp
@@ -54,7 +54,6 @@ enum Yells
 enum Spells
 {
     SPELL_UNLOCK            = 6421,
-
     SPELL_DARK_OFFERING     = 7154
 };
 
@@ -205,6 +204,123 @@ public:
 
 };
 
+enum ArugalSpells
+{
+    SPELL_TELE_UPPER    = 7587,
+    SPELL_TELE_SPAWN    = 7586,
+    SPELL_TELE_STAIRS   = 7136,
+    NUM_TELEPORT_SPELLS =    3,
+    SPELL_ARUGAL_CURSE  = 7621,
+    SPELL_THUNDERSHOCK  = 7803,
+    SPELL_VOIDBOLT      = 7588
+};
+
+enum ArugalTexts
+{
+    SAY_AGGRO       = 1, // You, too, shall serve!
+    SAY_TRANSFORM   = 2, // Release your rage!
+    SAY_SLAY        = 3  // Another falls!
+};
+
+enum ArugalEvents
+{
+    EVENT_VOID_BOLT = 1,
+    EVENT_TELEPORT,
+    EVENT_THUNDERSHOCK,
+    EVENT_CURSE
+};
+
+class boss_archmage_arugal : public CreatureScript
+{
+    public:
+        boss_archmage_arugal() : CreatureScript("boss_archmage_arugal") { }
+
+        struct boss_archmage_arugalAI : public BossAI
+        {
+            boss_archmage_arugalAI(Creature* creature) : BossAI(creature, BOSS_ARUGAL) { }
+
+            uint32 teleportSpells[NUM_TELEPORT_SPELLS] =
+            {
+                SPELL_TELE_SPAWN,
+                SPELL_TELE_UPPER,
+                SPELL_TELE_STAIRS
+            };
+
+            void KilledUnit(Unit* who) override
+            {
+                if (who->GetTypeId() == TYPEID_PLAYER)
+                    Talk(SAY_SLAY);
+            }
+
+            void SpellHitTarget(Unit* /*target*/, SpellInfo const* spell) override
+            {
+                if (spell->Id == SPELL_ARUGAL_CURSE)
+                    Talk(SAY_TRANSFORM);
+            }
+
+            void EnterCombat(Unit* /*who*/) override
+            {
+                _EnterCombat();
+                Talk(SAY_AGGRO);
+                events.ScheduleEvent(EVENT_CURSE, Seconds(7));
+                events.ScheduleEvent(EVENT_TELEPORT, Seconds(15));
+                events.ScheduleEvent(EVENT_VOID_BOLT, Seconds(1));
+                events.ScheduleEvent(EVENT_THUNDERSHOCK, Seconds(10));
+            }
+
+            void AttackStart(Unit* who) override
+            {
+                AttackStartCaster(who, 100.0f); // void bolt range is 100.f
+            }
+
+            void UpdateAI(uint32 diff) override
+            {
+                if (!UpdateVictim())
+                    return;
+
+                events.Update(diff);
+
+                if (me->HasUnitState(UNIT_STATE_CASTING))
+                    return;
+
+                while (uint32 eventId = events.ExecuteEvent())
+                {
+                    switch (eventId)
+                    {
+                        case EVENT_CURSE:
+                            if (Unit* target = SelectTarget(SELECT_TARGET_RANDOM, 1, 30.0f, true))
+                                DoCast(target, SPELL_ARUGAL_CURSE);
+                            events.Repeat(Seconds(15));
+                            break;
+                        case EVENT_TELEPORT:
+                        {
+                            // ensure we never cast the same teleport twice in a row
+                            uint8 spellIndex = urand(1, NUM_TELEPORT_SPELLS-1);
+                            std::swap(teleportSpells[0], teleportSpells[spellIndex]);
+                            DoCast(teleportSpells[0]);
+                            events.Repeat(Seconds(20));
+                            break;
+                        }
+                        case EVENT_THUNDERSHOCK:
+                            DoCastAOE(SPELL_THUNDERSHOCK);
+                            events.Repeat(Seconds(30));
+                            break;
+                        case EVENT_VOID_BOLT:
+                            DoCastVictim(SPELL_VOIDBOLT);
+                            events.Repeat(Seconds(5));
+                            break;
+                    }
+                }
+                DoMeleeAttackIfReady();
+            }
+        };
+
+        CreatureAI* GetAI(Creature* creature) const override
+        {
+            return GetShadowfangKeepAI<boss_archmage_arugalAI>(creature);
+        }
+};
+
 class spell_shadowfang_keep_haunting_spirits : public SpellScriptLoader
 {
     public:
@@ -248,5 +364,6 @@ void AddSC_shadowfang_keep()
 {
     new npc_shadowfang_prisoner();
     new npc_arugal_voidwalker();
+    new boss_archmage_arugal();
     new spell_shadowfang_keep_haunting_spirits();
 }
diff --git a/src/server/scripts/EasternKingdoms/ShadowfangKeep/shadowfang_keep.h b/src/server/scripts/EasternKingdoms/ShadowfangKeep/shadowfang_keep.h
index b5545fab5d5..449353be4f0 100644
--- a/src/server/scripts/EasternKingdoms/ShadowfangKeep/shadowfang_keep.h
+++ b/src/server/scripts/EasternKingdoms/ShadowfangKeep/shadowfang_keep.h
@@ -29,7 +29,8 @@ enum SKDataTypes
     TYPE_FREE_NPC               = 1,
     TYPE_RETHILGORE             = 2,
     TYPE_FENRUS                 = 3,
-    TYPE_NANDOS                 = 4
+    TYPE_NANDOS                 = 4,
+    BOSS_ARUGAL                 = 5
 };
 
 template<typename AI>