refactor(Scripts/TheBotanica): Modernize Thorngrin the Tender's script (#15277)

data/sql/updates/pending_db_world/rev_1677984661498248100.sql

@@ -0,0 +1,2 @@
+--
+UPDATE `creature_template` SET `ScriptName` = 'boss_thorngrin_the_tender' WHERE `entry` = 17978;

src/server/scripts/Outland/TempestKeep/botanica/boss_thorngrin_the_tender.cpp

@@ -39,24 +39,16 @@ enum Spells
     SPELL_ENRAGE                = 34670
 };
 
-enum Events
+struct boss_thorngrin_the_tender : public BossAI
 {
-    EVENT_SACRIFICE             = 1,
+    boss_thorngrin_the_tender(Creature* creature) : BossAI(creature, DATA_THORNGRIN_THE_TENDER)
-    EVENT_HELLFIRE              = 2,
-    EVENT_ENRAGE                = 3,
-};
-
-class boss_thorngrin_the_tender : public CreatureScript
-{
-public:
-    boss_thorngrin_the_tender() : CreatureScript("thorngrin_the_tender") { }
-
-    struct boss_thorngrin_the_tenderAI : public BossAI
-    {
-        boss_thorngrin_the_tenderAI(Creature* creature) : BossAI(creature, DATA_THORNGRIN_THE_TENDER)
     {
         me->m_SightDistance = 100.0f;
         _intro = false;
+        scheduler.SetValidator([this]
+        {
+            return !me->HasUnitState(UNIT_STATE_CASTING);
+        });
     }
 
     void Reset() override
@@ -72,7 +64,7 @@ public:
 
     void MoveInLineOfSight(Unit* who) override
     {
-            if (!_intro && who->GetTypeId() == TYPEID_PLAYER)
+        if (!_intro && who->IsPlayer())
         {
             _intro = true;
             Talk(SAY_INTRO);
@@ -84,16 +76,35 @@ public:
     {
         _JustEngagedWith();
         Talk(SAY_AGGRO);
-            events.ScheduleEvent(EVENT_SACRIFICE, 6000);
+
-            events.ScheduleEvent(EVENT_HELLFIRE, 18000);
+        scheduler.Schedule(6s, [this](TaskContext context)
-            events.ScheduleEvent(EVENT_ENRAGE, 15000);
+        {
+            if (DoCastRandomTarget(SPELL_SACRIFICE, 1) == SPELL_CAST_OK)
+            {
+                Talk(SAY_CAST_SACRIFICE);
+            }
+            context.Repeat(30s);
+        }).Schedule(18s, [this](TaskContext context)
+        {
+            if (roll_chance_i(50))
+                Talk(SAY_CAST_HELLFIRE);
+            DoCastAOE(SPELL_HELLFIRE);
+            context.Repeat(22s);
+        }).Schedule(15s, [this](TaskContext context)
+        {
+            Talk(EMOTE_ENRAGE);
+            DoCastSelf(SPELL_ENRAGE);
+            context.Repeat(30s);
+        });
     }
 
     void KilledUnit(Unit* victim) override
     {
-            if (victim->GetTypeId() == TYPEID_PLAYER)
+        if (victim->IsPlayer())
+        {
             Talk(SAY_KILL);
         }
+    }
 
     void JustDied(Unit* /*killer*/) override
     {
@@ -101,52 +112,11 @@ public:
         Talk(SAY_DEATH);
     }
 
-        void UpdateAI(uint32 diff) override
-        {
-            if (!UpdateVictim())
-                return;
-
-            events.Update(diff);
-            if (me->HasUnitState(UNIT_STATE_CASTING))
-                return;
-
-            switch (events.ExecuteEvent())
-            {
-                case EVENT_SACRIFICE:
-                    if (Unit* target = SelectTarget(SelectTargetMethod::Random, 1, 0.0f, true))
-                    {
-                        Talk(SAY_CAST_SACRIFICE);
-                        me->CastSpell(target, SPELL_SACRIFICE, false);
-                    }
-                    events.ScheduleEvent(EVENT_SACRIFICE, 30000);
-                    break;
-                case EVENT_HELLFIRE:
-                    if (roll_chance_i(50))
-                        Talk(SAY_CAST_HELLFIRE);
-                    me->CastSpell(me, SPELL_HELLFIRE, false);
-                    events.ScheduleEvent(EVENT_HELLFIRE, 22000);
-                    break;
-                case EVENT_ENRAGE:
-                    Talk(EMOTE_ENRAGE);
-                    me->CastSpell(me, SPELL_ENRAGE, false);
-                    events.ScheduleEvent(EVENT_ENRAGE, 30000);
-                    break;
-            }
-
-            DoMeleeAttackIfReady();
-        }
-
     private:
         bool _intro;
-    };
-
-    CreatureAI* GetAI(Creature* creature) const override
-    {
-        return GetTheBotanicaAI<boss_thorngrin_the_tenderAI>(creature);
-    }
 };
 
 void AddSC_boss_thorngrin_the_tender()
 {
-    new boss_thorngrin_the_tender();
+    RegisterTheBotanicaCreatureAI(boss_thorngrin_the_tender);
 }