From b36508e3d2f28bd20eb6d9bc79980fccd9c05c8a Mon Sep 17 00:00:00 2001
From: ragnarok-clanker <ragnarok-clanker>
Date: Thu, 5 Nov 2026 12:17:47 +0000
Subject: [PATCH] Decompile fn_21351 (CGameMode::WriteReplaySkillState)

Batch #12134 by SapitoSucio: 0 byte-identical, 1 confirmed by peer review.

- fn_21351 CGameMode::WriteReplaySkillState: logic confirmed by peer review

Peer-reviewed-by: Yommy, cremane
Accepted without human review: peers confirmed the logic ("same" ahead by at least 3, with 70% of the votes).
---
 Source/Client/Mode/GameMode.cpp | 25 ++++++++++++++++---------
 1 file changed, 16 insertions(+), 9 deletions(-)

diff --git a/Source/Client/Mode/GameMode.cpp b/Source/Client/Mode/GameMode.cpp
index 93c35a45..b7206531 100644
--- a/Source/Client/Mode/GameMode.cpp
+++ b/Source/Client/Mode/GameMode.cpp
@@ -5673,10 +5673,21 @@ static_assert(sizeof(SkillEntryPacket) == 16);
 // FUNCTION: fn_21351
 std::vector<unsigned char> CGameMode::WriteReplaySkillState() {
   std::vector<unsigned char> output;
-  {
-    const auto record = BuildReplayTaggedRecord(17000, nullptr, 0);
+  auto appendRecord = [&output](std::uint16_t id, const void* data, std::uint32_t bytes) {
+    std::vector<unsigned char> record(bytes + 6u, 0);
+    record[0] = static_cast<unsigned char>(id);
+    record[1] = static_cast<unsigned char>(id >> 8);
+    record[2] = static_cast<unsigned char>(bytes);
+    record[3] = static_cast<unsigned char>(bytes >> 8);
+    record[4] = static_cast<unsigned char>(bytes >> 16);
+    record[5] = static_cast<unsigned char>(bytes >> 24);
+    if (bytes != 0) {
+      std::memcpy(record.data() + 6, data, bytes);
+    }
     output.insert(output.end(), record.begin(), record.end());
-  }
+  };
+
+  appendRecord(17000, nullptr, 0);
 
   for (CRenderObject* object : this->scene->unknown_0020) {
     CSkill* skill = static_cast<CSkill*>(object);
@@ -5693,14 +5704,10 @@ std::vector<unsigned char> CGameMode::WriteReplaySkillState() {
     packet.x = static_cast<std::int16_t>(static_cast<int>(column));
     packet.y = static_cast<std::int16_t>(static_cast<int>(row));
 
-    const auto record = BuildReplayTaggedRecord(0xCD, &packet, sizeof(packet));
-    output.insert(output.end(), record.begin(), record.end());
+    appendRecord(0xCD, &packet, sizeof(packet));
   }
 
-  {
-    const auto record = BuildReplayTaggedRecord(17001, nullptr, 0);
-    output.insert(output.end(), record.begin(), record.end());
-  }
+  appendRecord(17001, nullptr, 0);
   return output;
 }