From c15329c6e1d688ca336dca11be5b94bfad4e3643 Mon Sep 17 00:00:00 2001
From: ragnarok-clanker <ragnarok-clanker>
Date: Sat, 31 Oct 2026 02:33:29 +0000
Subject: [PATCH] Decompile fn_21100 (CGameActor::UpdateWorldCell)

Batch #6922 by System4z: 0 byte-identical, 1 confirmed by peer review.

- fn_21100 CGameActor::UpdateWorldCell: logic confirmed by peer review

Peer-reviewed-by: eAthena, alisonrag
Accepted without human review: peers confirmed the logic ("same" ahead by at least 3, with 70% of the votes).
---
 Source/Contents/Actors/GameActor.cpp | 15 +++++++++++++++
 Source/Contents/Actors/GameActor.h   |  2 ++
 2 files changed, 17 insertions(+)

diff --git a/Source/Contents/Actors/GameActor.cpp b/Source/Contents/Actors/GameActor.cpp
index c9be3799..35802795 100644
--- a/Source/Contents/Actors/GameActor.cpp
+++ b/Source/Contents/Actors/GameActor.cpp
@@ -3,6 +3,7 @@
 #include "Client/Mode/CGameMode.h"
 #include "Client/Mode/ModeMgr.h"
 #include "Client/Session.h"
+#include "Contents/ActorNameCard.h"
 #include "Contents/Actors/ActorStateFlags.h"
 #include "Contents/Actors/GroundScope.h"
 #include "Contents/Actors/MercenaryAI.h"
@@ -11,16 +12,30 @@
 #include "Contents/Jobs/JobInheritance.h"
 #include "Contents/Effects/EffectTypes.h"
 #include "Contents/MapSkyMgr.h"
+#include "Contents/MessageTable.h"
 #include "Utility/Math/AffineMatrix.h"
 #include "Render/Renderer.h"
 #include "Resource/Sprites/ActionResource.h"
 #include "UI/Gauges/UIPcGage.h"
 #include "UI/Window/UIWindowMgr.h"
+#include "Utility/Text/FormatString.h"
 
 #include <cstring>
 #include <windows.h>
 #include <timeapi.h>
 
+// OFFSET: 0x00CB1930
+
+// OFFSET: 0x00CB2040
+// FUNCTION: fn_21100
+void CGameActor::UpdateWorldCell() {
+  CGameMode* mode = static_cast<CGameMode*>(g_modeMgr.GetGameMode());
+  int column;
+  int row;
+  mode->WorldCell(this->render.position.x, this->render.position.z, column, row);
+  mode->SendMsg(0xC, this->render.accountId, column, row, 0);
+}
+
 // OFFSET: 0x00CA83A0
 // FUNCTION: fn_20988
 CGameActor::CGameActor()
diff --git a/Source/Contents/Actors/GameActor.h b/Source/Contents/Actors/GameActor.h
index 7d031257..f327f9c4 100644
--- a/Source/Contents/Actors/GameActor.h
+++ b/Source/Contents/Actors/GameActor.h
@@ -268,6 +268,8 @@ public:
   void ProcessViewCheck();
   void ProcessActorEffects();
   void UpdateMotionFrame();
+  void UpdateDamageMessages();
+  void UpdateWorldCell();
   void ProcessHitMessage(CGameObject* sender, const ActorHitInfo* info, int unused1, int unused2);
   int GetEffectCounter(int effectId);
   float GetNameOffset();