Scripts/Spells: Implement Putrid Mushroom Primer spell (#30914)

3 files changed, 58 insertions, 25 deletions

diff --git a/sql/updates/world/3.3.5/2025_05_08_00_world.sql b/sql/updates/world/3.3.5/2025_05_08_00_world.sql
new file mode 100644
index 00000000000..d5cf7fc10f3
--- /dev/null
+++ b/sql/updates/world/3.3.5/2025_05_08_00_world.sql
@@ -0,0 +1,4 @@
+--
+DELETE FROM `spell_script_names` WHERE `ScriptName` = 'spell_hungarfen_putrid_mushroom_primer';
+INSERT INTO `spell_script_names` (`spell_id`, `ScriptName`) VALUES
+(31693, 'spell_hungarfen_putrid_mushroom_primer');
diff --git a/src/server/scripts/Outland/CoilfangReservoir/TheUnderbog/boss_hungarfen.cpp b/src/server/scripts/Outland/CoilfangReservoir/TheUnderbog/boss_hungarfen.cpp
index 916783f03e3..be90b9a2bec 100644
--- a/src/server/scripts/Outland/CoilfangReservoir/TheUnderbog/boss_hungarfen.cpp
+++ b/src/server/scripts/Outland/CoilfangReservoir/TheUnderbog/boss_hungarfen.cpp
@@ -15,9 +15,11 @@
  * with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include "Containers.h"
 #include "ScriptMgr.h"
 #include "ScriptedCreature.h"
 #include "SpellAuras.h"
+#include "SpellScript.h"
 #include "the_underbog.h"
 
 enum HungarfenTexts
@@ -53,17 +55,15 @@ struct boss_hungarfen : public BossAI
     void JustEngagedWith(Unit* who) override
     {
         BossAI::JustEngagedWith(who);
-        _scheduler.Schedule(IsHeroic() ? 2500ms : 5s, [this](TaskContext task)
+        scheduler.Schedule(IsHeroic() ? 2500ms : 5s, [this](TaskContext task)
         {
-            /// @todo cast here SPELL_PUTRID_MUSHROOM_PRIMER and do it in spell script
-            if (Unit* target = SelectTarget(SelectTargetMethod::Random, 0))
-                target->CastSpell(target, SPELL_SUMMON_UNDERBOG_MUSHROOM, true);
+            DoCastSelf(SPELL_PUTRID_MUSHROOM_PRIMER);
             task.Repeat(IsHeroic() ? 2500ms : 10s);
         });
 
         if (IsHeroic())
         {
-            _scheduler.Schedule(3s, 5s, [this](TaskContext task)
+            scheduler.Schedule(3s, 5s, [this](TaskContext task)
             {
                 if (Unit* target = SelectTarget(SelectTargetMethod::Random, 0))
                     DoCast(target, SPELL_ACID_GEYSER);
@@ -89,7 +89,7 @@ struct boss_hungarfen : public BossAI
         if (!UpdateVictim())
             return;
 
-        _scheduler.Update(diff, [this]
+        scheduler.Update(diff, [this]
         {
             DoMeleeAttackIfReady();
         });
@@ -100,7 +100,7 @@ struct boss_hungarfen : public BossAI
             _roared = true;
             me->SetReactState(REACT_PASSIVE);
 
-            _scheduler.Schedule(2s, [this](TaskContext /*task*/)
+            scheduler.Schedule(2s, [this](TaskContext /*task*/)
             {
                 DoCastSelf(SPELL_FOUL_SPORES);
                 me->SetReactState(REACT_AGGRESSIVE);
@@ -109,7 +109,6 @@ struct boss_hungarfen : public BossAI
     }
 
 private:
-    TaskScheduler _scheduler;
     bool _roared;
 };
 
@@ -159,8 +158,42 @@ private:
     uint32 _counter;
 };
 
+// 31693 - Putrid Mushroom Primer
+class spell_hungarfen_putrid_mushroom_primer : public SpellScript
+{
+    PrepareSpellScript(spell_hungarfen_putrid_mushroom_primer);
+
+    bool Validate(SpellInfo const* /*spellInfo*/) override
+    {
+        return ValidateSpellInfo({ SPELL_SUMMON_UNDERBOG_MUSHROOM });
+    }
+
+    /// @todo: Check if something else should be done here
+    void FilterTargets(std::list<WorldObject*>& targets)
+    {
+        if (targets.empty())
+            return;
+
+        WorldObject* target = Trinity::Containers::SelectRandomContainerElement(targets);
+        targets.clear();
+        targets.push_back(target);
+    }
+
+    void HandleScript(SpellEffIndex /*effIndex*/)
+    {
+        GetHitUnit()->CastSpell(GetHitUnit(), SPELL_SUMMON_UNDERBOG_MUSHROOM, true);
+    }
+
+    void Register() override
+    {
+        OnObjectAreaTargetSelect += SpellObjectAreaTargetSelectFn(spell_hungarfen_putrid_mushroom_primer::FilterTargets, EFFECT_0, TARGET_UNIT_SRC_AREA_ENEMY);
+        OnEffectHitTarget += SpellEffectFn(spell_hungarfen_putrid_mushroom_primer::HandleScript, EFFECT_0, SPELL_EFFECT_SCRIPT_EFFECT);
+    }
+};
+
 void AddSC_boss_hungarfen()
 {
     RegisterTheUnderbogCreatureAI(boss_hungarfen);
     RegisterTheUnderbogCreatureAI(npc_underbog_mushroom);
+    RegisterSpellScript(spell_hungarfen_putrid_mushroom_primer);
 }
diff --git a/src/server/scripts/Outland/CoilfangReservoir/TheUnderbog/boss_the_black_stalker.cpp b/src/server/scripts/Outland/CoilfangReservoir/TheUnderbog/boss_the_black_stalker.cpp
index 6a04a457345..4640f9e00ff 100644
--- a/src/server/scripts/Outland/CoilfangReservoir/TheUnderbog/boss_the_black_stalker.cpp
+++ b/src/server/scripts/Outland/CoilfangReservoir/TheUnderbog/boss_the_black_stalker.cpp
@@ -63,17 +63,17 @@ enum Events
 
 struct boss_the_black_stalker : public BossAI
 {
-    boss_the_black_stalker(Creature* creature) : BossAI(creature, DATA_THE_BLACK_STALKER), _summons(creature) { }
+    boss_the_black_stalker(Creature* creature) : BossAI(creature, DATA_THE_BLACK_STALKER) { }
 
     void JustEngagedWith(Unit* who) override
     {
         BossAI::JustEngagedWith(who);
-        _events.ScheduleEvent(EVENT_LEASH_CHECK, 5s);
-        _events.ScheduleEvent(EVENT_LEVITATE, 8s, 18s);
-        _events.ScheduleEvent(EVENT_CHAIN_LIGHTNING, 0s, 3s);
-        _events.ScheduleEvent(EVENT_STATIC_CHARGE, 10s);
+        events.ScheduleEvent(EVENT_LEASH_CHECK, 5s);
+        events.ScheduleEvent(EVENT_LEVITATE, 8s, 18s);
+        events.ScheduleEvent(EVENT_CHAIN_LIGHTNING, 0s, 3s);
+        events.ScheduleEvent(EVENT_STATIC_CHARGE, 10s);
         if (IsHeroic())
-            _events.ScheduleEvent(EVENT_SUMMON_SPORE_STRIDER, 20s, 30s);
+            events.ScheduleEvent(EVENT_SUMMON_SPORE_STRIDER, 20s, 30s);
     }
 
     void UpdateAI(uint32 diff) override
@@ -81,12 +81,12 @@ struct boss_the_black_stalker : public BossAI
         if (!UpdateVictim())
             return;
 
-        _events.Update(diff);
+        events.Update(diff);
 
         if (me->HasUnitState(UNIT_STATE_CASTING))
             return;
 
-        while (uint32 eventId = _events.ExecuteEvent())
+        while (uint32 eventId = events.ExecuteEvent())
         {
             switch (eventId)
             {
@@ -99,25 +99,25 @@ struct boss_the_black_stalker : public BossAI
                         EnterEvadeMode();
                         return;
                     }
-                    _events.Repeat(1s);
+                    events.Repeat(1s);
                     break;
                 }
                 case EVENT_LEVITATE:
                     DoCastSelf(SPELL_LEVITATE);
-                    _events.Repeat(18s, 24s);
+                    events.Repeat(18s, 24s);
                     break;
                 case EVENT_CHAIN_LIGHTNING:
                     DoCastVictim(SPELL_CHAIN_LIGHTNING);
-                    _events.Repeat(6s, 12s);
+                    events.Repeat(6s, 12s);
                     break;
                 case EVENT_STATIC_CHARGE:
                     if (Unit* target = SelectTarget(SelectTargetMethod::Random, 0, 30, true))
                         DoCast(target, SPELL_STATIC_CHARGE);
-                    _events.Repeat(10s);
+                    events.Repeat(10s);
                     break;
                 case EVENT_SUMMON_SPORE_STRIDER:
                     DoCastSelf(SPELL_SUMMON_SPORE_STRIDER_SCRIPT);
-                    _events.Repeat(15s, 25s);
+                    events.Repeat(15s, 25s);
                     break;
                 default:
                     break;
@@ -129,10 +129,6 @@ struct boss_the_black_stalker : public BossAI
 
         DoMeleeAttackIfReady();
     }
-
-private:
-    EventMap _events;
-    SummonList _summons;
 };
 
 // 31704 - Levitate