From 22db5ecae3a892bb1b42474838e32c9cce3e1cfb Mon Sep 17 00:00:00 2001
From: ragnarok-clanker <ragnarok-clanker>
Date: Sun, 1 Nov 2026 21:15:33 +0000
Subject: [PATCH] Decompile fn_12449 (UISecondPasswordInputWnd::ShuffleKeypad)

Batch #9742 by dori: 0 byte-identical, 1 confirmed by peer review.

- fn_12449 UISecondPasswordInputWnd::ShuffleKeypad: logic confirmed by peer review

Peer-reviewed-by: ragnarok-clanker, KWDev, Romain, Toshiro
Accepted without human review: peers confirmed the logic ("same" ahead by at least 3, with 70% of the votes).
---
 Source/UI/Acceptance/UIChooseSellBuyWnd.cpp | 19 +++++++++++++++++++
 Source/UI/Dialogs/UIPasswordWnd.h           |  1 +
 2 files changed, 20 insertions(+)

diff --git a/Source/UI/Acceptance/UIChooseSellBuyWnd.cpp b/Source/UI/Acceptance/UIChooseSellBuyWnd.cpp
index d6900aeb..2c4b4e22 100644
--- a/Source/UI/Acceptance/UIChooseSellBuyWnd.cpp
+++ b/Source/UI/Acceptance/UIChooseSellBuyWnd.cpp
@@ -122,6 +122,7 @@
 #include "Utility/Text/GroupedInteger.h"
 #include "Client/Mode/ModeTooltip.h"
 #include <algorithm>
+#include <random>
 #include <cstdint>
 #include <cstdio>
 #include <cstdlib>
@@ -7033,3 +7034,21 @@ void UIStorePasswordInputWnd::Paint() {
     }
   }
 }
+
+// OFFSET: 0x0090C5A0
+// FUNCTION: fn_12449
+void UISecondPasswordInputWnd::ShuffleKeypad()
+{
+  unsigned char digits[10];
+  for (int index = 0; index < 10; ++index)
+    digits[index] = static_cast<unsigned char>(index);
+  std::mt19937 engine(std::random_device{}());
+  std::shuffle(digits, digits + 10, engine);
+  const int positions[11][2] = {
+    {219, 78}, {279, 78}, {339, 78}, {219, 138}, {279, 138}, {339, 138},
+    {219, 198}, {279, 198}, {339, 198}, {219, 258}, {279, 258}
+  };
+  for (int index = 0; index < 10; ++index)
+    unknown_0124[index]->Move(positions[digits[index]][0], positions[digits[index]][1]);
+  Invalidate();
+}
diff --git a/Source/UI/Dialogs/UIPasswordWnd.h b/Source/UI/Dialogs/UIPasswordWnd.h
index 946a1dfb..98e21d92 100644
--- a/Source/UI/Dialogs/UIPasswordWnd.h
+++ b/Source/UI/Dialogs/UIPasswordWnd.h
@@ -81,6 +81,7 @@ class UISecondPasswordInputWnd : public UIStorePasswordInputWnd {
 public:
   UISecondPasswordInputWnd(UIWindowContext& windows, UIFrameContext& frames);
   void Paint() override;
+  void ShuffleKeypad();
 
   /* 010C */ int unknown_010C;
   /* 0110 */ unsigned char unknown_0110[0xC];