From 96f65b0e58e55bfa2fef83a330842d38923fe4d3 Mon Sep 17 00:00:00 2001
From: ragnarok-clanker <ragnarok-clanker>
Date: Fri, 6 Nov 2026 07:20:41 +0000
Subject: [PATCH] Decompile 3 functions in Source/Client/Input/Language.cpp

Batch #13146 by cremane: 0 byte-identical, 3 confirmed by peer review.

- fn_17766 CLanguageBase::MoveBack: logic confirmed by peer review
- fn_17787 CLanguageBase::MoveForward: logic confirmed by peer review
- fn_17792 CLanguageBase::KeyDown: logic confirmed by peer review (already on main)

Peer-reviewed-by: gordaoprogramas, codeplay, StrawberrysherbetIX
Accepted without human review: peers confirmed the logic ("same" ahead by at least 3, with 70% of the votes).
---
 Source/Client/Input/Language.cpp | 20 +++++++++++---------
 1 file changed, 11 insertions(+), 9 deletions(-)

diff --git a/Source/Client/Input/Language.cpp b/Source/Client/Input/Language.cpp
index 99cd55f8..4e1e9f23 100644
--- a/Source/Client/Input/Language.cpp
+++ b/Source/Client/Input/Language.cpp
@@ -182,11 +182,13 @@ void CLanguageBase::Paste() {
 // OFFSET: 0x00ACD6B0
 // FUNCTION: fn_17766
 void CLanguageBase::MoveBack() {
-  if (this->cursor < 0) {
-    this->cursor = 0;
-  } else if (this->cursor != 0) {
-    const char* begin = this->text.c_str();
-    this->cursor = static_cast<int>(CharPrevExA(static_cast<WORD>(this->codePage), begin, begin + this->cursor, 0) - begin);
+  if (this->cursor != 0) {
+    if (this->cursor < 0) {
+      this->cursor = 0;
+    } else {
+      const char* begin = this->text.c_str();
+      this->cursor = static_cast<int>(CharPrevExA(static_cast<WORD>(this->codePage), begin, begin + this->cursor, 0) - begin);
+    }
   }
 }
 // OFFSET: 0x00ACE440
@@ -213,12 +215,12 @@ void CLanguageBase::MoveForward() {
   if (position == length) {
     return;
   }
-  if (position < length) {
-    const char* begin = this->text.c_str();
-    this->cursor = static_cast<int>(CharNextExA(static_cast<WORD>(this->codePage), begin + position, 0) - begin);
+  if (position > length) {
+    this->cursor = static_cast<int>(length);
     return;
   }
-  this->cursor = static_cast<int>(length);
+  const char* begin = this->text.c_str();
+  this->cursor = static_cast<int>(CharNextExA(static_cast<WORD>(this->codePage), begin + position, 0) - begin);
 }
 // OFFSET: 0x00ACE5E0
 // FUNCTION: fn_17789