4jcraft/Minecraft.World/Containers/MerchantMenu.h

#pragma once

#include "AbstractContainerMenu.h"

class MerchantContainer;

class MerchantMenu : public AbstractContainerMenu {
public:
    static const int PAYMENT1_SLOT = 0;
    static const int PAYMENT2_SLOT = 1;
    static const int RESULT_SLOT = 2;

    static const int INV_SLOT_START = RESULT_SLOT + 1;
    static const int INV_SLOT_END = INV_SLOT_START + 9 * 3;
    static const int USE_ROW_SLOT_START = INV_SLOT_END;
    static const int USE_ROW_SLOT_END = USE_ROW_SLOT_START + 9;

    static const int SELLSLOT1_X = 36;
    static const int SELLSLOT2_X = SELLSLOT1_X + 26;
    static const int BUYSLOT_X = 120;

    static const int ROW1_Y = 24;
    static const int ROW2_Y = 53;

private:
    std::shared_ptr<Merchant> trader;
    std::shared_ptr<MerchantContainer> tradeContainer;
    Level* level;

public:
    MerchantMenu(std::shared_ptr<Inventory> inventory,
                 std::shared_ptr<Merchant> merchant, Level* level);

    std::shared_ptr<MerchantContainer> getTradeContainer();
    void addSlotListener(ContainerListener* listener);
    void broadcastChanges();
    void slotsChanged();  // 4J used to take a std::shared_ptr<Container> but
                          // wasn't using it, so removed to simplify things
    void setSelectionHint(int hint);
    void setData(int id, int value);
    bool stillValid(std::shared_ptr<Player> player);
    std::shared_ptr<ItemInstance> quickMoveStack(std::shared_ptr<Player> player,
                                                 int slotIndex);
    void removed(std::shared_ptr<Player> player);

    std::shared_ptr<Merchant> getMerchant();  // 4J Added
};