Scripts/Spells: Implement demon hunter talent "Inner Demon" (#30562)

2 files changed, 70 insertions, 0 deletions

diff --git a/src/server/game/Spells/SpellMgr.cpp b/src/server/game/Spells/SpellMgr.cpp
index d41b0b75476..e4dbe8a4c2e 100644
--- a/src/server/game/Spells/SpellMgr.cpp
+++ b/src/server/game/Spells/SpellMgr.cpp
@@ -5262,6 +5262,12 @@ void SpellMgr::LoadSpellInfoTargetCaps()
         spellInfo->_LoadSqrtTargetLimit(8, 0, 453034, EFFECT_1, {}, {});
     });
 
+    // Inner Demon
+    ApplySpellFix({ 390137 }, [](SpellInfo* spellInfo)
+    {
+        spellInfo->_LoadSqrtTargetLimit(5, 0, 389693, EFFECT_1, {}, {});
+    });
+
     TC_LOG_INFO("server.loading", ">> Loaded SpellInfo target caps in {} ms", GetMSTimeDiffToNow(oldMSTime));
 }
 
diff --git a/src/server/scripts/Spells/spell_dh.cpp b/src/server/scripts/Spells/spell_dh.cpp
index 7de1e0f161d..7d41bb4488f 100644
--- a/src/server/scripts/Spells/spell_dh.cpp
+++ b/src/server/scripts/Spells/spell_dh.cpp
@@ -24,6 +24,7 @@
 #include "AreaTrigger.h"
 #include "AreaTriggerAI.h"
 #include "DB2Stores.h"
+#include "PathGenerator.h"
 #include "Player.h"
 #include "ScriptMgr.h"
 #include "Spell.h"
@@ -127,6 +128,9 @@ enum DemonHunterSpells
     SPELL_DH_ILLIDANS_GRASP                        = 205630,
     SPELL_DH_ILLIDANS_GRASP_DAMAGE                 = 208618,
     SPELL_DH_ILLIDANS_GRASP_JUMP_DEST              = 208175,
+    SPELL_DH_INNER_DEMON_BUFF                      = 390145,
+    SPELL_DH_INNER_DEMON_DAMAGE                    = 390137,
+    SPELL_DH_INNER_DEMON_TALENT                    = 389693,
     SPELL_DH_INFERNAL_STRIKE_CAST                  = 189110,
     SPELL_DH_INFERNAL_STRIKE_IMPACT_DAMAGE         = 189112,
     SPELL_DH_INFERNAL_STRIKE_JUMP                  = 189111,
@@ -806,6 +810,64 @@ class spell_dh_furious_gaze : public AuraScript
     }
 };
 
+// Called by 162264 - Metamorphosis
+class spell_dh_inner_demon : public AuraScript
+{
+    bool Validate(SpellInfo const* /*spell*/) override
+    {
+        return ValidateSpellInfo({ SPELL_DH_INNER_DEMON_TALENT, SPELL_DH_INNER_DEMON_BUFF });
+    }
+
+    bool Load() override
+    {
+        return GetUnitOwner()->HasAura(SPELL_DH_INNER_DEMON_TALENT); // This spell has a proc, but is just a copypaste from spell 390145 (also don't have a 5s cooldown)
+    }
+
+    void OnApply(AuraEffect const* /*aurEff*/, AuraEffectHandleModes /*mode*/) const
+    {
+        Unit* target = GetTarget();
+        target->CastSpell(target, SPELL_DH_INNER_DEMON_BUFF, CastSpellExtraArgsInit{
+            .TriggerFlags = TRIGGERED_IGNORE_CAST_IN_PROGRESS | TRIGGERED_DONT_REPORT_CAST_ERROR,
+        });
+    }
+
+    void Register() override
+    {
+        AfterEffectApply += AuraEffectApplyFn(spell_dh_inner_demon::OnApply, EFFECT_0, SPELL_AURA_TRANSFORM, AURA_EFFECT_HANDLE_REAL_OR_REAPPLY_MASK);
+    }
+};
+
+// 390139 - Inner Demon
+// ID - 26749
+struct at_dh_inner_demon : AreaTriggerAI
+{
+    using AreaTriggerAI::AreaTriggerAI;
+
+    void OnInitialize() override
+    {
+        SpellInfo const* spellInfo = sSpellMgr->GetSpellInfo(at->GetSpellId(), DIFFICULTY_NONE);
+        if (!spellInfo)
+            return;
+
+        Unit* caster = at->GetCaster();
+        if (!caster)
+            return;
+
+        Position destPos = at->GetFirstCollisionPosition(spellInfo->GetEffect(EFFECT_0).CalcValue(caster) + at->GetMaxSearchRadius(), at->GetRelativeAngle(caster));
+        PathGenerator path(at);
+
+        path.CalculatePath(destPos.GetPositionX(), destPos.GetPositionY(), destPos.GetPositionZ(), false);
+
+        at->InitSplines(path.GetPath());
+    }
+
+    void OnRemove() override
+    {
+        if (Unit* caster = at->GetCaster())
+            caster->CastSpell(caster->GetPosition(), SPELL_DH_INNER_DEMON_DAMAGE, TRIGGERED_IGNORE_CAST_IN_PROGRESS | TRIGGERED_DONT_REPORT_CAST_ERROR);
+    }
+};
+
 // 209258 - Last Resort
 class spell_dh_last_resort : public AuraScript
 {
@@ -1253,6 +1315,8 @@ void AddSC_demon_hunter_spell_scripts()
     RegisterSpellScript(spell_dh_felblade_cooldown_reset_proc);
     RegisterSpellScript(spell_dh_fiery_brand);
     RegisterSpellScript(spell_dh_furious_gaze);
+    RegisterSpellScript(spell_dh_inner_demon);
+    RegisterAreaTriggerAI(at_dh_inner_demon);
     RegisterSpellScript(spell_dh_last_resort);
     RegisterSpellScript(spell_dh_restless_hunter);
     RegisterSpellScript(spell_dh_shattered_destiny);