4jcraft/Minecraft.Client/Platform/Common/UI/IUIScene_ContainerMenu.cpp

#include "../../Minecraft.World/Platform/stdafx.h"
#include "IUIScene_ContainerMenu.h"
#include "../../Minecraft.World/Headers/net.minecraft.world.inventory.h"

IUIScene_AbstractContainerMenu::ESceneSection
IUIScene_ContainerMenu::GetSectionAndSlotInDirection(ESceneSection eSection,
                                                     ETapState eTapDirection,
                                                     int* piTargetX,
                                                     int* piTargetY) {
    ESceneSection newSection = eSection;

    // Find the new section if there is one
    switch (eSection) {
        case eSectionContainerChest:
            if (eTapDirection == eTapStateDown) {
                newSection = eSectionContainerInventory;
            } else if (eTapDirection == eTapStateUp) {
                newSection = eSectionContainerUsing;
            }
            break;
        case eSectionContainerInventory:
            if (eTapDirection == eTapStateDown) {
                newSection = eSectionContainerUsing;
            } else if (eTapDirection == eTapStateUp) {
                newSection = eSectionContainerChest;
            }
            break;
        case eSectionContainerUsing:
            if (eTapDirection == eTapStateDown) {
                newSection = eSectionContainerChest;
            } else if (eTapDirection == eTapStateUp) {
                newSection = eSectionContainerInventory;
            }
            break;
        default:
            assert(false);
            break;
    }

    updateSlotPosition(eSection, newSection, eTapDirection, piTargetX,
                       piTargetY, 0);

    return newSection;
}

int IUIScene_ContainerMenu::getSectionStartOffset(ESceneSection eSection) {
    int offset = 0;
    switch (eSection) {
        case eSectionContainerChest:
            offset = 0;
            break;
        case eSectionContainerInventory:
            offset = m_menu->getSize() - (27 + 9);
            break;
        case eSectionContainerUsing:
            offset = m_menu->getSize() - 9;
            break;
        default:
            assert(false);
            break;
    }
    return offset;
}