From 336e4db2553ea7fba37166b097e027ed0e2e2820 Mon Sep 17 00:00:00 2001
From: ragnarok-clanker <ragnarok-clanker>
Date: Sat, 31 Oct 2026 16:32:46 +0000
Subject: [PATCH] Decompile fn_21322 (CGameMode::Run)

Batch #8319 by eAthena: 0 byte-identical, 1 confirmed by peer review.

- fn_21322 CGameMode::Run: logic confirmed by peer review

Peer-reviewed-by: kyoshi, System4z, dori
Accepted without human review: peers confirmed the logic ("same" ahead by at least 3, with 70% of the votes).
---
 Source/Client/Mode/CGameMode.h  |  2 +
 Source/Client/Mode/GameMode.cpp | 93 +++++++++++++++++++++++++++++++++
 2 files changed, 95 insertions(+)

diff --git a/Source/Client/Mode/CGameMode.h b/Source/Client/Mode/CGameMode.h
index 36cf205f..a88fa651 100644
--- a/Source/Client/Mode/CGameMode.h
+++ b/Source/Client/Mode/CGameMode.h
@@ -450,6 +450,8 @@ public:
     int first, int second, int third, int fourth, int fifth, int sixth, int seventh, int eighth, int ninth, int tenth,
     int eleventh, int twelfth, int thirteenth, int fourteenth, std::string text, int fifteenth
   );
+  int Run() override;
+  void TargetActorByAid(int aid);
   void Slot7(int value) override;
   void PlaceWindowAtActor(UIWindow* window, CGameActor* actor);
   void ReceiveSummonHpInit(const unsigned char* buffer);
diff --git a/Source/Client/Mode/GameMode.cpp b/Source/Client/Mode/GameMode.cpp
index 9ed0ef04..7f5e1599 100644
--- a/Source/Client/Mode/GameMode.cpp
+++ b/Source/Client/Mode/GameMode.cpp
@@ -1496,3 +1496,96 @@ void CPingLiveSchedule::Process(const std::uint64_t& now) {
     GetRagConnection().Send(sizeof(packet), &packet);
   }
 }
+
+#include "Client/Application/ApplicationWindow.h"
+#include "Client/Mode/CLoginMode.h"
+#include "Client/ModeFadeOut.h"
+#include "Render/DeviceContext/DCSurface.h"
+#include "Render/RenderSystemBase.h"
+#include "Resource/ResourceMgr.h"
+#include "Security/NProtectGameGuardMgr.h"
+#include "Utility/Cipher/XorBytes.h"
+
+namespace {
+
+template <std::size_t Length, std::uint64_t Key>
+class GameModeEncryptedName {
+public:
+  explicit GameModeEncryptedName(const std::uint8_t (&source)[Length]) : m_encrypted(true) {
+    for (std::uint64_t index = 0; index < Length; ++index) {
+      this->m_text[index] = source[index];
+    }
+  }
+
+  ~GameModeEncryptedName() {
+    for (std::uint64_t index = 0; index < Length; ++index) {
+      this->m_text[index] = 0;
+    }
+  }
+
+  const char* Text() {
+    if (this->m_encrypted) {
+      utility::XorBytes(this->m_text, Length, Key);
+      this->m_encrypted = false;
+    }
+
+    return reinterpret_cast<const char*>(this->m_text);
+  }
+
+private:
+  /* 0000 */ std::uint8_t m_text[Length];
+  bool m_encrypted;
+};
+
+}
+
+// OFFSET: 0x00CDEF00
+// FUNCTION: fn_21322
+int CGameMode::Run() {
+  while (this->running) {
+    if (g_modalImmediate) {
+      break;
+    }
+
+    if (g_windowMgr.modalWindows.empty() || g_windowMgr.modalWindows.back() == nullptr) {
+      if (!g_windowMgr.persistentWindows.empty()) {
+        if (g_windowMgr.retainedPersistentWindow) {
+          for (UIWindow* window : g_windowMgr.persistentWindows) {
+            g_windowMgr.Schedule(window);
+          }
+          g_windowMgr.retainedPersistentWindow = false;
+        }
+        g_windowMgr.persistentWindows.clear();
+      }
+
+      if (this->pendingCursorType != -1) {
+        this->cursorType = this->pendingCursorType;
+        this->cursorFrame = 0;
+        this->pendingCursorType = -1;
+        this->Slot7(this->cursorType);
+      }
+    }
+
+    if (g_nProtectGameGuardMgr->HasError()) {
+      GetRagConnection().Close();
+      g_modeMgr.Quit();
+      std::string message = g_nProtectGameGuardMgr->ErrorMessage();
+      if (!message.empty()) {
+        const std::uint8_t source[] = {0x53, 0x11, 0xF9, 0xA6, 0x8D, 0x7E, 0xA6, 0xD9, 0x1D, 0x06,
+                                       0xEA, 0xA4, 0x9C, 0x5C, 0xB0, 0xCC, 0x4F, 0x25, 0x8B};
+        thread_local GameModeEncryptedName<sizeof(source), 0xADC51BF9C98B413DULL> name(source);
+        MessageBoxA(hWnd, message.c_str(), name.Text(), 0);
+      }
+    }
+
+    this->Update();
+    Sleep(1);
+  }
+
+  FadeOutMode(*g_renderer, *GetRenderSystemHolder()->system, ResourceMgr::Instance(), 0, false, 0.0f, 0.0f);
+  return 1;
+}
+
+#include "Client/Input/Mouse.h"
+
+// OFFSET: 0x00CDFC40