From a3df600644facb506d6e4a2040421f88a94d93bc Mon Sep 17 00:00:00 2001
From: ragnarok-clanker <ragnarok-clanker>
Date: Fri, 30 Oct 2026 18:26:37 +0000
Subject: [PATCH] Decompile fn_10174 (UIRune_Info::Slot15)

Batch #6002 by superintelligence: 0 byte-identical, 1 confirmed by peer review.

- fn_10174 UIRune_Info::Slot15: logic confirmed by peer review

Peer-reviewed-by: ragnarok-clanker, eAthena
Accepted without human review: peers confirmed the logic ("same" ahead by at least 3, with 70% of the votes).
---
 Source/UI/RuneSystem/UIRuneSystemWnd.cpp | 69 ++++++++++++++++++++++++
 Source/UI/RuneSystem/UIRuneSystemWnd.h   |  5 ++
 2 files changed, 74 insertions(+)

diff --git a/Source/UI/RuneSystem/UIRuneSystemWnd.cpp b/Source/UI/RuneSystem/UIRuneSystemWnd.cpp
index c0fe6693..4f0eb4c9 100644
--- a/Source/UI/RuneSystem/UIRuneSystemWnd.cpp
+++ b/Source/UI/RuneSystem/UIRuneSystemWnd.cpp
@@ -95,6 +95,25 @@ int UIRune_Decom::HitTestItem(int x, int y) {
   return -1;
 }
 
+// OFFSET: 0x00818300
+// FUNCTION: fn_10174
+void UIRune_Info::Slot15(int, int) {
+  this->m_activeWnd = new (std::nothrow) UIRuneSystem_ActiveWnd(*this->m_context);
+  this->AddChild(this->m_activeWnd);
+  this->m_activeWnd->SetSize(0xEA, 0x78);
+  this->m_activeWnd->Move(0xC5, 0x159);
+
+  this->m_activateButton = new (std::nothrow) UIBitmapButton(*this->m_context, *reinterpret_cast<UIButtonContext*>(nullptr));
+  this->AddChild(this->m_activateButton);
+  this->m_activateButton->SetBitmap("유저인터페이스\\runesystem\\bt_active_nomal.bmp", 0, 0);
+  this->m_activateButton->SetBitmap("유저인터페이스\\runesystem\\bt_active_mouseon.bmp", 1, 0);
+  this->m_activateButton->SetBitmap("유저인터페이스\\runesystem\\bt_active_pressed.bmp", 2, 0);
+  this->m_activateButton->SetBitmap("유저인터페이스\\runesystem\\bt_active_disabled.bmp", 3, 0);
+  this->m_activateButton->SetSize(this->m_activateButton->BitmapWidth(), this->m_activateButton->BitmapHeight());
+  this->m_activateButton->Move(0xEE, this->geometry.height - 30);
+  this->m_activateButton->SetId(0x23C);
+}
+
 // OFFSET: 0x00819610
 // FUNCTION: fn_10181
 void UIRuneSetReWard::Paint() {
@@ -306,6 +325,56 @@ void UIDecomlist::Slot28(int, int) {
 }
 
 // OFFSET: 0x0081C240
+// FUNCTION: fn_10204
+void UIEquipRuneSetWnd::Slot28(int x, int y) {
+  if (x >= 11 && x <= 36 && y >= 8 && y <= 27) {
+    RuneSetData* runeSet = g_runeSystemMgr->GetCurRuneSet();
+    if (!runeSet) {
+      return;
+    }
+
+    int screenX = -15;
+    int screenY = 6;
+    this->ToScreen(screenX, screenY);
+    if (!g_modeMgr.gameMode) {
+      return;
+    }
+
+    CTagData* tag = g_runeSystemMgr->GetTag(runeSet->GetTagId());
+    reinterpret_cast<ModeTooltip*>(g_modeMgr.gameMode)->Show(tag->m_name.c_str(), screenX, screenY, 0xFFFFFF, 0, 1);
+    return;
+  }
+
+  if (x < 22 || x > this->geometry.width - 24 || y < 34 || y > this->geometry.height - 11) {
+    return;
+  }
+
+  RuneSetData* runeSet = g_runeSystemMgr->GetCurRuneSet();
+  if (!runeSet) {
+    return;
+  }
+
+  const int column = (x - 22) / 40;
+  if (x - column * 40 - 22 > 37) {
+    return;
+  }
+  if (static_cast<unsigned int>(column) >= runeSet->m_slots.size()) {
+    return;
+  }
+
+  int screenX = column * 40 + 21;
+  int screenY = 12;
+  this->ToScreen(screenX, screenY);
+  if (!g_modeMgr.gameMode) {
+    return;
+  }
+
+  RuneData* rune = runeSet->m_slots[column];
+  if (!rune) {
+    return;
+  }
+  reinterpret_cast<ModeTooltip*>(g_modeMgr.gameMode)->Show(rune->GetName(), screenX, screenY, 0xFFFFFF, 0, 1);
+}
 
 // OFFSET: 0x0081C3D0
 // FUNCTION: fn_10205
diff --git a/Source/UI/RuneSystem/UIRuneSystemWnd.h b/Source/UI/RuneSystem/UIRuneSystemWnd.h
index e64189a7..85384d6b 100644
--- a/Source/UI/RuneSystem/UIRuneSystemWnd.h
+++ b/Source/UI/RuneSystem/UIRuneSystemWnd.h
@@ -142,6 +142,10 @@ public:
 
 class UIRuneSystem_ActiveWnd : public UIWindow {
 public:
+  // INLINED
+  explicit UIRuneSystem_ActiveWnd(UIWindowContext& windows) : UIWindow(windows, 0), m_columns(4), m_rows(2), m_listId(-1) {
+  }
+
   void Paint() override;
   void Slot28(int x, int y) override;
   void Slot32(int x, int y) override;
@@ -192,6 +196,7 @@ public:
 
 class UIRune_Info : public UIWindow {
 public:
+  void Slot15(int width, int height) override;
   void Paint() override;
   int SendMsg(UIWindow* sender, int message, std::intptr_t argument1, std::intptr_t argument2, std::intptr_t argument3, std::intptr_t argument4) override;