From bcf4062a457ba761f043c3e900b79e1588e8ab42 Mon Sep 17 00:00:00 2001
From: ragnarok-clanker <ragnarok-clanker>
Date: Thu, 29 Oct 2026 00:00:14 +0000
Subject: [PATCH] Decompile fn_23789 (CSession::GetMonsterSkillInfo)

Batch #1927 by ragnarok-clanker: 0 byte-identical, 1 confirmed by peer review.

- fn_23789 CSession::GetMonsterSkillInfo: logic confirmed by peer review

Reviewed-by: ragnarok-clanker
Adds to the build: Source/Contents/MonsterXmlActions.cpp
---
 Source/Client/Session.h               |  5 ++
 Source/Contents/MonsterXmlActions.cpp | 85 +++++++++++++++++++++++++++
 data/compile.json                     |  1 +
 3 files changed, 91 insertions(+)
 create mode 100644 Source/Contents/MonsterXmlActions.cpp

diff --git a/Source/Client/Session.h b/Source/Client/Session.h
index 74f451ff..e5229788 100644
--- a/Source/Client/Session.h
+++ b/Source/Client/Session.h
@@ -269,6 +269,8 @@ public:
   CSkillInfo AdditionalSkillAt(int index) const;
   CSkillInfo HomunSkillAt(int index) const;
   void DeleteProhibitionLog(std::uint32_t aid, std::uint32_t minutes, WindowDialogs& dialogs);
+  int IsAdminSubMode(int subMode);
+  void GetMonsterSkillInfo(const char* monster, int skill, int* action, int* loopType, WindowDialogs& dialogs);
   const char* DecodePlayerName() const;
   void NotifyHomunSkillWindows();
   void NotifyMercSkillWindows();
@@ -336,6 +338,9 @@ public:
 };
 
 extern CSession g_session;
+extern std::vector<int> g_adminAccountIds;
+
+bool IsAdminAccount(int aid);
 
 #if defined(_WIN32) && !defined(_WIN64)
 static_assert(sizeof(SessionRecord6144) == 0x38);
diff --git a/Source/Contents/MonsterXmlActions.cpp b/Source/Contents/MonsterXmlActions.cpp
new file mode 100644
index 00000000..97e52998
--- /dev/null
+++ b/Source/Contents/MonsterXmlActions.cpp
@@ -0,0 +1,85 @@
+#include "Client/Session.h"
+#include "Contents/MessageTable.h"
+#include "UI/Window/WindowDialogs.h"
+
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+#include <vector>
+
+// GLOBAL: gl_24750
+std::vector<int> g_adminAccountIds;
+
+// OFFSET: 0x00AD1BE0
+// FUNCTION: fn_17812
+bool IsAdminAccount(int aid) {
+  for (int value : g_adminAccountIds) {
+    if (value == aid) {
+      return true;
+    }
+  }
+
+  return false;
+}
+
+// OFFSET: 0x00DFA390
+// FUNCTION: fn_23572
+int CSession::IsAdminSubMode(int subMode) {
+  if (IsAdminAccount(this->m_aid) && subMode == 7) {
+    return 1;
+  }
+
+  return 0;
+}
+
+// OFFSET: 0x00E09B50
+// FUNCTION: fn_23789
+void CSession::GetMonsterSkillInfo(const char* monster, int skill, int* action, int* loopType, WindowDialogs& dialogs) {
+  *action = -1;
+
+  char tableName[21];
+  std::memcpy(tableName, "Monster_Action_Table", sizeof(tableName));
+  XmlNode* table = this->m_monsterSkillInfo.FindChild(DecodeMessageRot(tableName));
+  if (!table) {
+    return;
+  }
+
+  char number[8];
+  char skillName[8];
+  _itoa(skill, number, 10);
+  std::sprintf(skillName, "_%s", number);
+
+  char monsterName[256];
+  std::strcpy(monsterName, monster);
+  _strlwr(monsterName);
+  XmlNode* entry = table->FindChild(DecodeMessageRot(monsterName));
+  if (!entry) {
+    return;
+  }
+
+  XmlNode* skillNode = entry->FindChild(DecodeMessageRot(skillName));
+  if (!skillNode) {
+    return;
+  }
+
+  char fieldName[9];
+  std::memcpy(fieldName, "action", 7);
+  XmlNode* actionNode = skillNode->FindChild(DecodeMessageRot(fieldName));
+  std::memcpy(fieldName, "loopType", 9);
+  XmlNode* loopNode = skillNode->FindChild(DecodeMessageRot(fieldName));
+
+  if (this->IsAdminSubMode(1) && (!actionNode || !loopNode)) {
+    *action = 0;
+    *loopType = 0;
+    dialogs.Confirm("에러발생. 클라이언트 담당자 에게 에러 사실을 통보 하세요. 위치 - CPlayer :: GetMonsterSkillInfo", 0, true, false, 0, "Message", 280, 120, 0);
+    dialogs.Confirm("action 또는 loopType 이 존재하지 않음.", 0, true, false, 0, "Message", 280, 120, 0);
+    return;
+  }
+
+  char actionText[8];
+  char loopText[8];
+  std::sprintf(actionText, DecodeMessageRot(const_cast<char*>(actionNode->Text().c_str())));
+  std::sprintf(loopText, DecodeMessageRot(const_cast<char*>(loopNode->Text().c_str())));
+  *action = std::atoi(actionText);
+  *loopType = std::atoi(loopText);
+}
diff --git a/data/compile.json b/data/compile.json
index 07e845cb..94232066 100644
--- a/data/compile.json
+++ b/data/compile.json
@@ -380,6 +380,7 @@
   "Source/Contents/Models/ModelTextureAnimation.cpp": 3,
   "Source/Contents/MonsterResources.cpp": 4,
   "Source/Contents/MonsterSpeech.cpp": 4,
+  "Source/Contents/MonsterXmlActions.cpp": 4,
   "Source/Contents/MovementRoute.cpp": 4,
   "Source/Contents/MovementRouteInterpolation.cpp": 4,
   "Source/Contents/Movies/BinkMovie.cpp": 3,