4jcraft/Minecraft.World/Containers/MerchantRecipeList.cpp

#include "../Platform/stdafx.h"
#include "../Headers/net.minecraft.world.item.trading.h"
#include "MerchantRecipeList.h"

MerchantRecipeList::MerchantRecipeList() {}

MerchantRecipeList::MerchantRecipeList(CompoundTag* tag) { load(tag); }

MerchantRecipeList::~MerchantRecipeList() {
    for (auto it = m_recipes.begin(); it != m_recipes.end(); ++it) {
        delete (*it);
    }
}

MerchantRecipe* MerchantRecipeList::getRecipeFor(
    std::shared_ptr<ItemInstance> buyA, std::shared_ptr<ItemInstance> buyB,
    int selectionHint) {
    if (selectionHint > 0 && selectionHint < m_recipes.size()) {
        // attempt to match vs the hint
        MerchantRecipe* r = m_recipes.at(selectionHint);
        if (buyA->id == r->getBuyAItem()->id &&
            ((buyB == nullptr && !r->hasSecondaryBuyItem()) ||
             (r->hasSecondaryBuyItem() && buyB != nullptr &&
              r->getBuyBItem()->id == buyB->id))) {
            if (buyA->count >= r->getBuyAItem()->count &&
                (!r->hasSecondaryBuyItem() ||
                 buyB->count >= r->getBuyBItem()->count)) {
                return r;
            }
        }
        return nullptr;
    }
    for (int i = 0; i < m_recipes.size(); i++) {
        MerchantRecipe* r = m_recipes.at(i);
        if (buyA->id == r->getBuyAItem()->id &&
            buyA->count >= r->getBuyAItem()->count &&
            ((!r->hasSecondaryBuyItem() && buyB == nullptr) ||
             (r->hasSecondaryBuyItem() && buyB != nullptr &&
              r->getBuyBItem()->id == buyB->id &&
              buyB->count >= r->getBuyBItem()->count))) {
            return r;
        }
    }
    return nullptr;
}

bool MerchantRecipeList::addIfNewOrBetter(MerchantRecipe* recipe) {
    bool added = false;
    for (int i = 0; i < m_recipes.size(); i++) {
        MerchantRecipe* r = m_recipes.at(i);
        if (recipe->isSame(r)) {
            if (recipe->isSameSameButBetter(r)) {
                delete m_recipes[i];
                m_recipes[i] = recipe;
                added = true;
            }
            return added;
        }
    }
    m_recipes.push_back(recipe);
    return true;
}

MerchantRecipe* MerchantRecipeList::getMatchingRecipeFor(
    std::shared_ptr<ItemInstance> buy, std::shared_ptr<ItemInstance> buyB,
    std::shared_ptr<ItemInstance> sell) {
    for (int i = 0; i < m_recipes.size(); i++) {
        MerchantRecipe* r = m_recipes.at(i);
        if (buy->id == r->getBuyAItem()->id &&
            buy->count >= r->getBuyAItem()->count &&
            sell->id == r->getSellItem()->id) {
            if (!r->hasSecondaryBuyItem() ||
                (buyB != nullptr && buyB->id == r->getBuyBItem()->id &&
                 buyB->count >= r->getBuyBItem()->count)) {
                return r;
            }
        }
    }
    return nullptr;
}

void MerchantRecipeList::writeToStream(DataOutputStream* stream) {
    stream->writeByte((uint8_t)(m_recipes.size() & 0xff));
    for (int i = 0; i < m_recipes.size(); i++) {
        MerchantRecipe* r = m_recipes.at(i);
        Packet::writeItem(r->getBuyAItem(), stream);
        Packet::writeItem(r->getSellItem(), stream);

        std::shared_ptr<ItemInstance> buyBItem = r->getBuyBItem();
        stream->writeBoolean(buyBItem != nullptr);
        if (buyBItem != nullptr) {
            Packet::writeItem(buyBItem, stream);
        }
        stream->writeBoolean(r->isDeprecated());
        stream->writeInt(r->getUses());
        stream->writeInt(r->getMaxUses());
    }
}

MerchantRecipeList* MerchantRecipeList::createFromStream(
    DataInputStream* stream) {
    MerchantRecipeList* list = new MerchantRecipeList();

    int count = (int)(stream->readByte() & 0xff);
    for (int i = 0; i < count; i++) {
        std::shared_ptr<ItemInstance> buy = Packet::readItem(stream);
        std::shared_ptr<ItemInstance> sell = Packet::readItem(stream);

        std::shared_ptr<ItemInstance> buyB = nullptr;
        if (stream->readBoolean()) {
            buyB = Packet::readItem(stream);
        }
        bool isDeprecated = stream->readBoolean();
        int uses = stream->readInt();
        int maxUses = stream->readInt();

        MerchantRecipe* recipe =
            new MerchantRecipe(buy, buyB, sell, uses, maxUses);
        if (isDeprecated) {
            recipe->enforceDeprecated();
        }
        list->push_back(recipe);
    }
    return list;
}

void MerchantRecipeList::load(CompoundTag* tag) {
    ListTag<CompoundTag>* list =
        (ListTag<CompoundTag>*)tag->getList(L"Recipes");

    for (int i = 0; i < list->size(); i++) {
        CompoundTag* recipeTag = list->get(i);
        m_recipes.push_back(new MerchantRecipe(recipeTag));
    }
}

CompoundTag* MerchantRecipeList::createTag() {
    CompoundTag* tag = new CompoundTag();

    ListTag<CompoundTag>* list = new ListTag<CompoundTag>(L"Recipes");
    for (int i = 0; i < m_recipes.size(); i++) {
        MerchantRecipe* merchantRecipe = m_recipes.at(i);
        list->add(merchantRecipe->createTag());
    }
    tag->put(L"Recipes", list);

    return tag;
}

void MerchantRecipeList::push_back(MerchantRecipe* recipe) {
    m_recipes.push_back(recipe);
}

MerchantRecipe* MerchantRecipeList::at(size_t index) {
    return m_recipes.at(index);
}

std::vector<MerchantRecipe*>::iterator MerchantRecipeList::begin() {
    return m_recipes.begin();
}

std::vector<MerchantRecipe*>::iterator MerchantRecipeList::end() {
    return m_recipes.end();
}

std::vector<MerchantRecipe*>::iterator MerchantRecipeList::erase(
    std::vector<MerchantRecipe*>::iterator it) {
    return m_recipes.erase(it);
}

size_t MerchantRecipeList::size() { return m_recipes.size(); }

bool MerchantRecipeList::empty() { return m_recipes.empty(); }