Scripts/Spells: Implement druid talent Nature's Grace (TrinityCore#30215)

Author: aquadeus

sql/updates/world/master/2024_09_29_01_world.sql

@@ -0,0 +1,9 @@
+DELETE FROM `spell_script_names` WHERE `ScriptName` IN ('spell_dru_natures_grace_eclipse', 'spell_dru_natures_grace');
+INSERT INTO `spell_script_names` (`spell_id`, `ScriptName`) VALUES
+(48517, 'spell_dru_natures_grace_eclipse'),
+(48518, 'spell_dru_natures_grace_eclipse'),
+(450347, 'spell_dru_natures_grace');
+
+DELETE FROM `spell_proc` WHERE `SpellId` IN (450346);
+INSERT INTO `spell_proc` (`SpellId`,`SchoolMask`,`SpellFamilyName`,`SpellFamilyMask0`,`SpellFamilyMask1`,`SpellFamilyMask2`,`SpellFamilyMask3`,`ProcFlags`,`ProcFlags2`,`SpellTypeMask`,`SpellPhaseMask`,`HitMask`,`AttributesMask`,`DisableEffectsMask`,`ProcsPerMinute`,`Chance`,`Cooldown`,`Charges`) VALUES
+(450346,0x00,7,0x00000005,0x00000000,0x00000000,0x00000000,0x0,0x0,0x1,0x1,0x0,0x18,0x0,0,0,0,0); -- Dreamstate

src/server/scripts/Spells/spell_druid.cpp

@@ -58,6 +58,7 @@ enum DruidSpells
     SPELL_DRUID_CULTIVATION                    = 200390,
     SPELL_DRUID_CULTIVATION_HEAL               = 200389,
     SPELL_DRUID_CURIOUS_BRAMBLEPATCH           = 330670,
+    SPELL_DRUID_DREAMSTATE                     = 450346,
     SPELL_DRUID_EARTHWARDEN_AURA               = 203975,
     SPELL_DRUID_ECLIPSE_DUMMY                  = 79577,
     SPELL_DRUID_ECLIPSE_LUNAR_AURA             = 48518,
@@ -107,6 +108,7 @@ enum DruidSpells
     SPELL_DRUID_MANGLE                         = 33917,
     SPELL_DRUID_MASS_ENTANGLEMENT              = 102359,
     SPELL_DRUID_MOONFIRE_DAMAGE                = 164812,
+    SPELL_DRUID_NATURES_GRACE_TALENT           = 450347,
     SPELL_DRUID_NEW_MOON                       = 274281,
     SPELL_DRUID_NEW_MOON_OVERRIDE              = 274295,
     SPELL_DRUID_POWER_OF_THE_ARCHDRUID         = 392302,
@@ -1341,6 +1343,61 @@ class spell_dru_moonfire : public SpellScript
     }
 };
 
+// 450347 - Nature's Grace
+class spell_dru_natures_grace : public AuraScript
+{
+public:
+    bool Validate(SpellInfo const* spellInfo) override
+    {
+        return ValidateSpellInfo({ SPELL_DRUID_NATURES_GRACE_TALENT, SPELL_DRUID_DREAMSTATE })
+            && ValidateSpellEffect({ { spellInfo->Id, EFFECT_2 } });
+    }
+
+    static void Trigger(Unit* caster, AuraEffect const* naturesGraceEffect)
+    {
+        caster->CastSpell(caster, SPELL_DRUID_DREAMSTATE, CastSpellExtraArgsInit{
+            .SpellValueOverrides = { { SPELLVALUE_AURA_STACK, naturesGraceEffect->GetAmount() } }
+        });
+
+    }
+
+    void OnOwnerInCombat(bool isNowInCombat) const
+    {
+        if (isNowInCombat)
+            Trigger(GetTarget(), GetEffect(EFFECT_2));
+    }
+
+    void Register() override
+    {
+        OnEnterLeaveCombat += AuraEnterLeaveCombatFn(spell_dru_natures_grace::OnOwnerInCombat);
+    }
+};
+
+// 48517 Eclipse (Solar) + 48518 Eclipse (Lunar)
+class spell_dru_natures_grace_eclipse : public AuraScript
+{
+    bool Validate(SpellInfo const* /*spellInfo*/) override
+    {
+        return ValidateSpellInfo({ SPELL_DRUID_DREAMSTATE })
+            && ValidateSpellEffect({ { SPELL_DRUID_NATURES_GRACE_TALENT, EFFECT_2 } });
+    }
+
+    bool Load() override
+    {
+        return GetCaster()->HasAuraEffect(SPELL_DRUID_NATURES_GRACE_TALENT, EFFECT_2);
+    }
+
+    void HandleRemoved(AuraEffect const* /*aurEff*/, AuraEffectHandleModes /*mode*/) const
+    {
+        spell_dru_natures_grace::Trigger(GetTarget(), GetTarget()->GetAuraEffect(SPELL_DRUID_NATURES_GRACE_TALENT, EFFECT_2));
+    }
+
+    void Register() override
+    {
+        AfterEffectRemove += AuraEffectRemoveFn(spell_dru_natures_grace_eclipse::HandleRemoved, EFFECT_0, SPELL_AURA_ADD_PCT_MODIFIER, AURA_EFFECT_HANDLE_REAL);
+    }
+};
+
 // 274283 - Full Moon
 // 274282 - Half Moon
 // 274281 - New Moon
@@ -2301,6 +2358,8 @@ void AddSC_druid_spell_scripts()
     RegisterSpellScript(spell_dru_lunar_inspiration);
     RegisterSpellScript(spell_dru_luxuriant_soil);
     RegisterSpellScript(spell_dru_moonfire);
+    RegisterSpellScript(spell_dru_natures_grace);
+    RegisterSpellScript(spell_dru_natures_grace_eclipse);
     RegisterSpellScriptWithArgs(spell_dru_new_moon, "spell_dru_full_moon", Optional<DruidSpells>(), Optional<DruidSpells>(SPELL_DRUID_HALF_MOON_OVERRIDE));
     RegisterSpellScriptWithArgs(spell_dru_new_moon, "spell_dru_half_moon", Optional<DruidSpells>(SPELL_DRUID_HALF_MOON_OVERRIDE), Optional<DruidSpells>(SPELL_DRUID_NEW_MOON_OVERRIDE));
     RegisterSpellScriptWithArgs(spell_dru_new_moon, "spell_dru_new_moon", Optional<DruidSpells>(SPELL_DRUID_NEW_MOON_OVERRIDE), Optional<DruidSpells>());