From ccc85e1fdae9d7a5f393a25c726426ef2c90146d Mon Sep 17 00:00:00 2001
From: ragnarok-clanker <ragnarok-clanker>
Date: Sun, 1 Nov 2026 14:46:06 +0000
Subject: [PATCH] Decompile fn_03631 (UINavigationV4Wnd::LoadRoute)

Batch #9520 by ragnarok-clanker: 0 byte-identical, 1 confirmed by peer review.

- fn_03631 UINavigationV4Wnd::LoadRoute: logic confirmed by peer review

Peer-reviewed-by: Yommy, secret, dori, seumadruga
Accepted without human review: peers confirmed the logic ("same" ahead by at least 3, with 70% of the votes).
---
 Source/UI/Navigation/UINavigationV4Wnd.h |  1 +
 Source/UI/Window/UINavigationWnd.h       |  2 +
 Source/UI/Window/UIWindow.cpp            | 48 +++++++++++++++++++++++-
 3 files changed, 50 insertions(+), 1 deletion(-)

diff --git a/Source/UI/Navigation/UINavigationV4Wnd.h b/Source/UI/Navigation/UINavigationV4Wnd.h
index df2d30be..07e1f842 100644
--- a/Source/UI/Navigation/UINavigationV4Wnd.h
+++ b/Source/UI/Navigation/UINavigationV4Wnd.h
@@ -43,6 +43,7 @@ public:
   std::string MobName(CNavi_Object* mob);
   void SelectRoute(int route);
   void FillRouteGroups();
+  bool LoadRoute(int index);
   void SetRoadIcon(int slot);
   void InsertNavigationLink(std::string name, int x, int y);
   void DrawTargetSprite(int x, int y, int width, int height, const CBitmapRes* background);
diff --git a/Source/UI/Window/UINavigationWnd.h b/Source/UI/Window/UINavigationWnd.h
index d2907e50..cdfc410c 100644
--- a/Source/UI/Window/UINavigationWnd.h
+++ b/Source/UI/Window/UINavigationWnd.h
@@ -34,6 +34,8 @@ extern UIWindow* g_navigationWindow;
 extern bool g_navigationHidden;
 extern CActRes* g_navigationActions;
 extern CSprRes* g_navigationSprites;
+extern bool g_navigationFilter;
+extern int g_navigationSearchType;
 
 class UINavigationWnd : public UIFrameWnd {
 public:
diff --git a/Source/UI/Window/UIWindow.cpp b/Source/UI/Window/UIWindow.cpp
index e835d277..b025f1c9 100644
--- a/Source/UI/Window/UIWindow.cpp
+++ b/Source/UI/Window/UIWindow.cpp
@@ -1,3 +1,4 @@
+#include "Client/Application/Launcher.h"
 #include "Client/Input/InputCharset.h"
 #include "Client/Mode/CGameMode.h"
 #include "Client/Replay.h"
@@ -27,9 +28,11 @@
 #include "UI/Buttons/UIBasicButton.h"
 #include "UI/Buttons/UIBitmapButton.h"
 #include "UI/Buttons/UIButton.h"
+#include "UI/Buttons/UICheckBox.h"
 #include "UI/Buttons/UIItemTagButton.h"
 #include "UI/Chat/ChatSuggestions.h"
 #include "UI/Edit/UIEditCtrl.h"
+#include "UI/Lists/UIComboBoxDefWnd.h"
 #include "UI/Lists/UIListBoxNaviSearch.h"
 #include "UI/Lists/UIScrollBar.h"
 #include "UI/Lists/UIScrollBarNavi.h"
@@ -2276,7 +2279,7 @@ void UIListBox_NaviSearch::Paint() {
   }
 }
 
-// OFFSET: 0x005C5D40
+// OFFSET: 0x005C4EA0
 // FUNCTION: fn_03582
 void UINavigationroadiconWnd::Slot15(int, int) {
   this->AddCloseButton(*this->m_controls, LookupMessage(3045), 0);
@@ -2581,6 +2584,49 @@ void UINavigationV4Wnd::SelectRoute(int route) {
   this->Invalidate();
 }
 
+// OFFSET: 0x005C9180
+// FUNCTION: fn_03631
+bool UINavigationV4Wnd::LoadRoute(int index) {
+  if (this->unknown_0104.empty() || static_cast<unsigned int>(index) > this->unknown_0104.size() || index < 0) {
+    return false;
+  }
+
+  std::string name = this->unknown_0104[index].c_str();
+  if (name.size() == 0) {
+    return false;
+  }
+
+  std::string path = FormatOwnedString("%s\\Navigationdata\\%s", g_applicationDirectory, name.c_str());
+  FILE* file = fopen(path.c_str(), "rb");
+  if (!file) {
+    return false;
+  }
+
+  g_navigationManager.ClearStates();
+  char delimiters[] = "\t ,\t\n";
+  char line[1024];
+  std::memset(line, 0, sizeof(line));
+  std::vector<std::string> tokens;
+  while (!feof(file)) {
+    fgets(line, 1024, file);
+    for (char* token = strtok(line, delimiters); token; token = strtok(nullptr, delimiters)) {
+      tokens.emplace_back(std::string(token));
+    }
+    g_navigationManager.AddState(tokens);
+    tokens.erase(tokens.begin(), tokens.end());
+  }
+  fclose(file);
+  g_navigationManager.BuildSingleNodePaths();
+
+  if (g_navigationManager.StateCount() > 0) {
+    reinterpret_cast<WindowReplayRecorder*>(this)->RecordData(0x38F, g_navigationManager.WriteStates());
+  }
+
+  this->FillRouteGroups();
+  this->SendMsg(this, 6, 190, 0, 0, 0);
+  return true;
+}
+
 // OFFSET: 0x005C9A20
 // FUNCTION: fn_03634
 void UINavigationV4Wnd::FillRouteGroups() {