Scripts/Spells: Implement shaman talent Arctic Snowstorm (#30178)

2 files changed, 70 insertions, 1 deletions

diff --git a/sql/updates/world/master/2024_09_12_00_world.sql b/sql/updates/world/master/2024_09_12_00_world.sql
new file mode 100644
index 00000000000..86cb8ed78db
--- /dev/null
+++ b/sql/updates/world/master/2024_09_12_00_world.sql
@@ -0,0 +1,20 @@
+SET @ATID := 36797;
+
+-- Serverside Areatrigger
+DELETE FROM `areatrigger_create_properties` WHERE `Id`=34472 AND `IsCustom`=0;
+INSERT INTO `areatrigger_create_properties` (`Id`, `IsCustom`, `AreaTriggerId`, `IsAreatriggerCustom`, `Flags`, `MoveCurveId`, `ScaleCurveId`, `MorphCurveId`, `FacingCurveId`, `AnimId`, `AnimKitId`, `DecalPropertiesId`, `SpellForVisuals`, `TimeToTarget`, `TimeToTargetScale`, `Shape`, `ShapeData0`, `ShapeData1`, `ShapeData2`, `ShapeData3`, `ShapeData4`, `ShapeData5`, `ShapeData6`, `ShapeData7`, `ScriptName`, `VerifiedBuild`) VALUES
+(34472, 0, @ATID, 1, 4, 0, 0, 0, 0, -1, 0, 0, NULL, 0, 0, 0, 10, 10, 0, 0, 0, 0, 0, 0, 'areatrigger_sha_arctic_snowstorm', 0);
+
+DELETE FROM `areatrigger_template` WHERE `Id`=@ATID AND `IsCustom`=1;
+INSERT INTO `areatrigger_template` (`Id`, `IsCustom`, `Flags`, `ActionSetId`, `ActionSetFlags`, `VerifiedBuild`) VALUES
+(@ATID, 1, 1, 0, 0, 0);
+
+-- Proc
+DELETE FROM `spell_proc` WHERE `SpellId` IN (462764);
+INSERT INTO `spell_proc` (`SpellId`,`SchoolMask`,`SpellFamilyName`,`SpellFamilyMask0`,`SpellFamilyMask1`,`SpellFamilyMask2`,`SpellFamilyMask3`,`ProcFlags`,`ProcFlags2`,`SpellTypeMask`,`SpellPhaseMask`,`HitMask`,`AttributesMask`,`DisableEffectsMask`,`ProcsPerMinute`,`Chance`,`Cooldown`,`Charges`) VALUES
+(462764,0x0,11,0x80000000,0x00000000,0x00000000,0x00000000,0x0,0x0,0x1,0x2,0x0,0x0,0x0,0,0,0,0); -- Arctic Snowstorm
+
+-- Spells
+DELETE FROM `spell_script_names` WHERE `ScriptName` = 'spell_sha_arctic_snowstorm';
+INSERT INTO `spell_script_names` (`spell_id`, `ScriptName`) VALUES
+(462764, 'spell_sha_arctic_snowstorm');
diff --git a/src/server/scripts/Spells/spell_shaman.cpp b/src/server/scripts/Spells/spell_shaman.cpp
index a48072df244..1905205b24e 100644
--- a/src/server/scripts/Spells/spell_shaman.cpp
+++ b/src/server/scripts/Spells/spell_shaman.cpp
@@ -41,6 +41,8 @@ enum ShamanSpells
     SPELL_SHAMAN_AFTERSHOCK_ENERGIZE            = 210712,
     SPELL_SHAMAN_ANCESTRAL_GUIDANCE             = 108281,
     SPELL_SHAMAN_ANCESTRAL_GUIDANCE_HEAL        = 114911,
+    SPELL_SHAMAN_ARCTIC_SNOWSTORM_AREATRIGGER   = 462767,
+    SPELL_SHAMAN_ARCTIC_SNOWSTORM_SLOW          = 462765,
     SPELL_SHAMAN_ASCENDANCE_ELEMENTAL           = 114050,
     SPELL_SHAMAN_ASCENDANCE_ENHANCEMENT         = 114051,
     SPELL_SHAMAN_ASCENDANCE_RESTORATION         = 114052,
@@ -73,6 +75,7 @@ enum ShamanSpells
     SPELL_SHAMAN_FLAMETONGUE_ATTACK             = 10444,
     SPELL_SHAMAN_FLAMETONGUE_WEAPON_ENCHANT     = 334294,
     SPELL_SHAMAN_FLAMETONGUE_WEAPON_AURA        = 319778,
+    SPELL_SHAMAN_FROST_SHOCK                    = 196840,
     SPELL_SHAMAN_FROST_SHOCK_ENERGIZE           = 289439,
     SPELL_SHAMAN_GATHERING_STORMS               = 198299,
     SPELL_SHAMAN_GATHERING_STORMS_BUFF          = 198300,
@@ -223,6 +226,26 @@ class spell_sha_ancestral_guidance_heal : public SpellScript
     }
 };
 
+// 462764 - Arctic Snowstorm
+class spell_sha_arctic_snowstorm : public AuraScript
+{
+    bool Validate(SpellInfo const* /*spellEntry*/) override
+    {
+        return ValidateSpellInfo({ SPELL_SHAMAN_ARCTIC_SNOWSTORM_AREATRIGGER });
+    }
+
+    void HandleEffectProc(AuraEffect const* /*aurEff*/, ProcEventInfo const& eventInfo) const
+    {
+        eventInfo.GetActor()->CastSpell(eventInfo.GetActionTarget(), SPELL_SHAMAN_ARCTIC_SNOWSTORM_AREATRIGGER,
+            TRIGGERED_IGNORE_CAST_IN_PROGRESS | TRIGGERED_DONT_REPORT_CAST_ERROR);
+    }
+
+    void Register() override
+    {
+        OnEffectProc += AuraEffectProcFn(spell_sha_arctic_snowstorm::HandleEffectProc, EFFECT_0, SPELL_AURA_DUMMY);
+    }
+};
+
 // 114052 - Ascendance (Restoration)
 class spell_sha_ascendance_restoration : public AuraScript
 {
@@ -1866,8 +1889,32 @@ class spell_sha_windspeakers_lava_resurgence : public SpellScript
     }
 };
 
+// 462767 - Arctic Snowstorm
+// 36797 - AreatriggerId
+struct areatrigger_sha_arctic_snowstorm : AreaTriggerAI
+{
+    using AreaTriggerAI::AreaTriggerAI;
+
+    void OnUnitEnter(Unit* unit) override
+    {
+        if (Unit* caster = at->GetCaster())
+        {
+            if (unit->GetAura(SPELL_SHAMAN_FROST_SHOCK, caster->GetGUID()))
+                return;
+
+            if (caster->IsValidAttackTarget(unit))
+                caster->CastSpell(unit, SPELL_SHAMAN_ARCTIC_SNOWSTORM_SLOW, TRIGGERED_IGNORE_CAST_IN_PROGRESS | TRIGGERED_DONT_REPORT_CAST_ERROR);
+        }
+    }
+
+    void OnUnitExit(Unit* unit) override
+    {
+        unit->RemoveAurasDueToSpell(SPELL_SHAMAN_ARCTIC_SNOWSTORM_SLOW, at->GetCasterGuid());
+    }
+};
+
 // 192078 - Wind Rush Totem (Spell)
-//  12676 - AreaTriggerId
+// 12676 - AreaTriggerId
 struct areatrigger_sha_wind_rush_totem : AreaTriggerAI
 {
     static constexpr uint32 REFRESH_TIME = 4500;
@@ -1915,6 +1962,7 @@ void AddSC_shaman_spell_scripts()
     RegisterSpellScript(spell_sha_aftershock);
     RegisterSpellScript(spell_sha_ancestral_guidance);
     RegisterSpellScript(spell_sha_ancestral_guidance_heal);
+    RegisterSpellScript(spell_sha_arctic_snowstorm);
     RegisterSpellScript(spell_sha_ascendance_restoration);
     RegisterSpellScript(spell_sha_chain_lightning);
     RegisterSpellScript(spell_sha_chain_lightning_overload);
@@ -1967,5 +2015,6 @@ void AddSC_shaman_spell_scripts()
     RegisterSpellScript(spell_sha_windfury_weapon);
     RegisterSpellScript(spell_sha_windfury_weapon_proc);
     RegisterSpellScript(spell_sha_windspeakers_lava_resurgence);
+    RegisterAreaTriggerAI(areatrigger_sha_arctic_snowstorm);
     RegisterAreaTriggerAI(areatrigger_sha_wind_rush_totem);
 }