From c3fe24e02062da8fe02f27c2d925fe0ef3b91572 Mon Sep 17 00:00:00 2001
From: ragnarok-clanker <ragnarok-clanker>
Date: Wed, 28 Oct 2026 19:42:58 +0000
Subject: [PATCH] Decompile 2 functions in
 Source/Contents/ActorMovementRoute.cpp, Source/Contents/Actors/GameActor.h,
 ...

Batch #1601 by eAthena: 0 byte-identical, 2 confirmed by peer review.

- fn_19317 Replay::DelayScale: logic confirmed by peer review
- fn_21028 CGameActor::FindRoute: logic confirmed by peer review

Reviewed-by: ragnarok-clanker
Adds to the build: Source/Contents/ActorMovementRoute.cpp
---
 Source/Client/Replay.h                 |  1 +
 Source/Contents/ActorMovementRoute.cpp | 64 ++++++++++++++++++++++++++
 Source/Contents/Actors/GameActor.h     | 11 ++++-
 Source/Contents/TerrainPathSearch.h    |  2 +
 data/compile.json                      |  1 +
 5 files changed, 77 insertions(+), 2 deletions(-)
 create mode 100644 Source/Contents/ActorMovementRoute.cpp

diff --git a/Source/Client/Replay.h b/Source/Client/Replay.h
index d1841ed..7b6fe60 100644
--- a/Source/Client/Replay.h
+++ b/Source/Client/Replay.h
@@ -113,6 +113,7 @@ public:
   int WriteHeader(int event);
   std::vector<unsigned char> BuildMetadata();
   float AnimationScale() const;
+  float DelayScale() const;
   bool SetState(int state);
   bool SetBaseFrame(std::uint32_t baseFrame);
   void UpdateDuration();
diff --git a/Source/Contents/ActorMovementRoute.cpp b/Source/Contents/ActorMovementRoute.cpp
new file mode 100644
index 0000000..f6b223b
--- /dev/null
+++ b/Source/Contents/ActorMovementRoute.cpp
@@ -0,0 +1,64 @@
+#include "Client/Replay.h"
+#include "Client/Session.h"
+#include "Contents/Actors/GameActor.h"
+#include "Contents/TerrainPathSearch.h"
+
+// GLOBAL: gl_24733
+CPathFinder g_pathFinder;
+
+// OFFSET: 0x00B84570
+// FUNCTION: fn_19317
+float Replay::DelayScale() const {
+  if (this->speed == 0.25f) {
+    return 4.0f;
+  }
+  if (this->speed == 0.5f) {
+    return 2.0f;
+  }
+  if (this->speed == 1.0f) {
+    return 1.0f;
+  }
+  if (this->speed == 2.0f) {
+    return 0.5f;
+  }
+  if (this->speed == 4.0f) {
+    return 0.25f;
+  }
+  if (this->speed == 8.0f) {
+    return 0.125f;
+  }
+  if (this->speed == 16.0f) {
+    return 0.0625f;
+  }
+  return 1.0f;
+}
+
+// OFFSET: 0x00CAB610
+// FUNCTION: fn_21028
+bool CGameActor::FindRoute(int startX, int startY, int fractionX, int fractionY, int destX, int destY, int speed) {
+  float scaledSpeed = 0.0f;
+  int stepSpeed;
+  if (g_replayAnimationScaling != 0) {
+    scaledSpeed = Replay::Instance().DelayScale() * static_cast<float>(speed);
+    stepSpeed = static_cast<int>(scaledSpeed);
+  } else {
+    stepSpeed = speed;
+  }
+
+  const bool found =
+    g_pathFinder.FindPath(this->routeStartTick, startX, startY, fractionX, fractionY, destX, destY, stepSpeed, this->route, this->unknown_0314);
+  if (!found) {
+    return found;
+  }
+
+  std::uint32_t endTick;
+  this->route.EndTick(&endTick);
+  const std::uint32_t now = g_session.GetServerTime();
+  if (endTick > now) {
+    return found;
+  }
+
+  const int baseSpeed = g_replayAnimationScaling != 0 ? static_cast<int>(scaledSpeed) : speed;
+  this->routeStartTick = now;
+  return g_pathFinder.FindPath(now, startX, startY, fractionX, fractionY, destX, destY, baseSpeed * 10 / 13, this->route, this->unknown_0314);
+}
diff --git a/Source/Contents/Actors/GameActor.h b/Source/Contents/Actors/GameActor.h
index 88baeb3..79b255e 100644
--- a/Source/Contents/Actors/GameActor.h
+++ b/Source/Contents/Actors/GameActor.h
@@ -2,6 +2,7 @@
 #define RAGNAROK_SOURCE_CONTENTS_ACTORS_GAMEACTOR_H
 
 #include "Contents/Actors/RenderObject.h"
+#include "Contents/MovementRouteInterpolation.h"
 
 #include <cstddef>
 
@@ -9,9 +10,12 @@ class CGameActor : public CRenderObject {
 public:
   ~CGameActor() override;
 
-  /* 0138 */ unsigned char unknown_0138[0x100];
+  /* 0138 */ unsigned char unknown_0138[0xE8];
+  /* 0220 */ MovementRouteInterpolation route;
   /* 0238 */ unsigned char unknown_0238;
-  /* 0239 */ unsigned char unknown_0239[0x27];
+  /* 0239 */ unsigned char unknown_0239[0x1B];
+  /* 0254 */ std::uint32_t routeStartTick;
+  /* 0258 */ unsigned char unknown_0258[0x08];
   /* 0260 */ int unknown_0260;
   /* 0264 */ unsigned char unknown_0264[0x64];
   /* 02C8 */ int unknown_02C8;
@@ -49,11 +53,14 @@ public:
   void SetUnknown02E4(int value);
   void SetUnknown02C8(int value);
   void SetUnknown0260(int value);
+  bool FindRoute(int startX, int startY, int fractionX, int fractionY, int destX, int destY, int speed);
 };
 
 #if defined(_WIN32) && !defined(_WIN64)
 static_assert(sizeof(CGameActor) == 0x410);
+static_assert(offsetof(CGameActor, route) == 0x220);
 static_assert(offsetof(CGameActor, unknown_0238) == 0x238);
+static_assert(offsetof(CGameActor, routeStartTick) == 0x254);
 static_assert(offsetof(CGameActor, unknown_0260) == 0x260);
 static_assert(offsetof(CGameActor, unknown_02C8) == 0x2C8);
 static_assert(offsetof(CGameActor, unknown_02E4) == 0x2E4);
diff --git a/Source/Contents/TerrainPathSearch.h b/Source/Contents/TerrainPathSearch.h
index ac758c3..1e78d06 100644
--- a/Source/Contents/TerrainPathSearch.h
+++ b/Source/Contents/TerrainPathSearch.h
@@ -54,6 +54,8 @@ public:
   int Width() const;
 };
 
+extern CPathFinder g_pathFinder;
+
 #if defined(_WIN32) && !defined(_WIN64)
 static_assert(offsetof(CPathFinder, attrCache) == 0x1078);
 static_assert(offsetof(CPathFinder, nodePool) == 0x1084);
diff --git a/data/compile.json b/data/compile.json
index ede9fe2..9cf717d 100644
--- a/data/compile.json
+++ b/data/compile.json
@@ -266,6 +266,7 @@
   "Source/Client/ReplayPacketRecorder.cpp": 2,
   "Source/Client/Session.cpp": 0,
   "Source/Contents/ActorGeometry.cpp": 4,
+  "Source/Contents/ActorMovementRoute.cpp": 4,
   "Source/Contents/ActorNameCard.cpp": 4,
   "Source/Contents/ActorNameDirectory.cpp": 4,
   "Source/Contents/Actors/AttackMotion.cpp": 4,