From 85b75aaa74f2ee4c8aa1481bc99df80ae2675dbd Mon Sep 17 00:00:00 2001
From: ragnarok-clanker <ragnarok-clanker>
Date: Sat, 31 Oct 2026 05:17:32 +0000
Subject: [PATCH] Decompile fn_04220
 (UILapineUpgradeBox_IngredientListWnd::AddIngredient)

Batch #7245 by alisonrag: 0 byte-identical, 1 confirmed by peer review.

- fn_04220 UILapineUpgradeBox_IngredientListWnd::AddIngredient: logic confirmed by peer review

Peer-reviewed-by: eAthena, Lumen
Accepted without human review: peers confirmed the logic ("same" ahead by at least 3, with 70% of the votes).
---
 Source/UI/UILapineUpgradeBoxWnd.cpp | 39 +++++++++++++++++++++++++++++
 Source/UI/UILapineUpgradeBoxWnd.h   |  3 +++
 2 files changed, 42 insertions(+)

diff --git a/Source/UI/UILapineUpgradeBoxWnd.cpp b/Source/UI/UILapineUpgradeBoxWnd.cpp
index 2621c8ca..f2669cb9 100644
--- a/Source/UI/UILapineUpgradeBoxWnd.cpp
+++ b/Source/UI/UILapineUpgradeBoxWnd.cpp
@@ -253,6 +253,8 @@ void UILapineUpgradeBox_IngredientInfoWnd::Slot32(int x, int y) {
   }
 }
 
+// OFFSET: 0x006059B0
+
 // OFFSET: 0x00605BB0
 // FUNCTION: fn_04225
 void UILapineUpgradeBoxWnd::SetWaiting(unsigned char value) {
@@ -264,6 +266,8 @@ void UILapineUpgradeBoxWnd::SetWaiting(unsigned char value) {
 
 // OFFSET: 0x006049B0
 
+// OFFSET: 0x006041E0
+
 // OFFSET: 0x00603680
 // FUNCTION: fn_04196
 void UILapineUpgradeBox_IngredientListWnd::Slot10(int x, int y, std::intptr_t value) {
@@ -451,6 +455,41 @@ void UILapineUpgradeBoxWnd::AddMaterial(int id) {
 }
 
 // OFFSET: 0x006052F0
+// FUNCTION: fn_04220
+bool UILapineUpgradeBox_IngredientListWnd::AddIngredient(std::uint32_t identity) {
+  ITEM_INFO owned = LookupClientItemByIdentity(g_session.m_inventoryItems, identity);
+  if (owned.unknown_0000[1] == 0) {
+    return false;
+  }
+  const int itemId = std::atoi(owned.itemId.c_str());
+  if (owned.unknown_0060 < this->minRefine || owned.unknown_0060 > this->maxRefine || owned.unknown_0098 < this->minOptionCount) {
+    return false;
+  }
+  if ((g_session.IsPetEgg(itemId) == 1 && owned.unknown_005D == 1) || g_session.HasItem61B8(owned.unknown_0000[1]) == 1) {
+    return false;
+  }
+  const auto material = std::find_if(this->materials.begin(), this->materials.end(), [itemId](ITEM_INFO value) {
+    return std::atoi(value.itemId.c_str()) == itemId;
+  });
+  if (material == this->materials.end()) {
+    return false;
+  }
+  for (UILapineUpgradeBox_IngredientInfoWnd* entry : this->items) {
+    if (entry->item.unknown_0000[1] == identity) {
+      return true;
+    }
+  }
+  auto* owner = static_cast<UILapineUpgradeBoxWnd*>(this->parent);
+  auto* entry = new UILapineUpgradeBox_IngredientInfoWnd(*this->m_context, owner->FrameContext());
+  entry->SetSize(136, 30);
+  entry->SetItem(identity);
+  entry->quantity = 1;
+  this->AddScrollChild(entry);
+  entry->Invalidate();
+  this->items.push_back(entry);
+  this->SendMsg(this, 0x57, 0, 0, 0, 0);
+  return true;
+}
 
 // OFFSET: 0x00605750
 // FUNCTION: fn_04222
diff --git a/Source/UI/UILapineUpgradeBoxWnd.h b/Source/UI/UILapineUpgradeBoxWnd.h
index 50963f56..07e84a98 100644
--- a/Source/UI/UILapineUpgradeBoxWnd.h
+++ b/Source/UI/UILapineUpgradeBoxWnd.h
@@ -4,6 +4,7 @@
 #include "Contents/Items/ItemInfo.h"
 #include "UI/Window/UIFrameWnd.h"
 
+#include <cstdint>
 #include <string>
 
 class UIBitmapButton;
@@ -25,6 +26,7 @@ public:
   void Slot31(int x, int y) override;
   void Slot32(int x, int y) override;
   void Slot35(int argument) override;
+  void SetItem(std::uint32_t identity);
 
   /* 00B8 */ ITEM_INFO item;
   /* 01B0 */ unsigned char selected;
@@ -48,6 +50,7 @@ public:
   void Slot26(int x, int y) override;
   void Slot28(int x, int y) override;
   void Slot32(int x, int y) override;
+  int SendMsg(UIWindow* sender, int message, std::intptr_t a, std::intptr_t b, std::intptr_t c, std::intptr_t d) override;
   void SetWaiting(unsigned char value);
   UILapineUpgradeBox_IngredientInfoWnd* FindSelected();
   void SetIngredient(int id);