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Decompile fn_03871 (UIChangeMaterialWnd_List::sub_5E1080)

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Batch #3295 by bigodeira: 0 byte-identical, 1 confirmed by peer review.

- fn_03871 UIChangeMaterialWnd_List::sub_5E1080: logic confirmed by peer review

Peer-reviewed-by: eAthena, meitogi
Accepted without human review: peers confirmed the logic ("same" ahead by at least 3, with 70% of the votes).
This commit is contained in:
ragnarok-clanker 2026-10-29 21:33:28 +00:00
commit cef791300a
2 changed files with 48 additions and 0 deletions
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28
Source/UI/UIChangeMaterialWnd.cpp
View file

@ -1,5 +1,33 @@
#include "UI/UIChangeMaterialWnd.h"
// OFFSET: 0x005E1080
// FUNCTION: fn_03871
void UIChangeMaterialWnd_List::sub_5E1080(int delta) {
int64_t newIndex = this->m_selectedIndex + delta;
const int count = static_cast<int>(this->m_items.size());
const int maxIndex = count - 1;
if (newIndex >= static_cast<uint32_t>(maxIndex)) {
newIndex = maxIndex;
}
int targetIndex = static_cast<int>(newIndex);
if (targetIndex < this->m_scrollOffset || targetIndex >= this->m_scrollOffset + this->m_pageSize) {
int newOffset = this->m_previousScrollOffset;
if (targetIndex < newOffset || targetIndex >= newOffset + this->m_pageSize) {
const int candidate = targetIndex - this->m_pageSize + 1;
const int limit = count - this->m_pageSize;
newOffset = static_cast<unsigned int>(candidate) < static_cast<unsigned int>(limit) ? candidate : limit;
}
this->m_scrollOffset = newOffset;
this->sub_5E2A70();
this->m_previousScrollOffset = this->m_scrollOffset;
}
this->sub_5E3B80(targetIndex);
}
// OFFSET: 0x005E1120
// FUNCTION: fn_03872
ITEM_INFO* UIChangeMaterialWnd::GetItemAt(int x, int y) {

20
Source/UI/UIChangeMaterialWnd.h
View file

@ -29,6 +29,20 @@ public:
class UIChangeMaterialWnd_List : public UIFrameWnd {
public:
void Move(int x, int y) override;
void sub_5E2A70();
void sub_5E3B80(int index);
void sub_5E1080(int delta);
/* 00BC */ int m_pageSize;
/* 00C0 */ int64_t m_selectedIndex;
/* 00C8 */ int unknown_00C8;
/* 00CC */ int unknown_00CC;
/* 00D0 */ int m_scrollOffset;
/* 00D4 */ int m_previousScrollOffset;
/* 00D8 */ int unknown_00D8;
/* 00DC */ std::vector<int> m_items;
/* 00E8 */ unsigned char unknown_00E8[0x10];
};
#if defined(_WIN32) && !defined(_WIN64)
@ -36,6 +50,12 @@ static_assert(offsetof(UIChangeMaterialWnd, m_resultX) == 0xC4);
static_assert(offsetof(UIChangeMaterialWnd, m_resultItem) == 0xD0);
static_assert(offsetof(UIChangeMaterialWnd, m_materialPos) == 0x1C8);
static_assert(offsetof(UIChangeMaterialWnd, m_materials) == 0x1F8);
static_assert(sizeof(UIChangeMaterialWnd_List) == 0xF8);
static_assert(offsetof(UIChangeMaterialWnd_List, m_pageSize) == 0xBC);
static_assert(offsetof(UIChangeMaterialWnd_List, m_selectedIndex) == 0xC0);
static_assert(offsetof(UIChangeMaterialWnd_List, m_scrollOffset) == 0xD0);
static_assert(offsetof(UIChangeMaterialWnd_List, m_previousScrollOffset) == 0xD4);
static_assert(offsetof(UIChangeMaterialWnd_List, m_items) == 0xDC);
#endif
#endif