filename:
src/nbt/ListTag.cpp
branch:
feature/world
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/*
*
* _____ _ _
* / ___|| | | |
* \ `--. | |_ _ __ __ _ | |_ ___ ___
* `--. \| __|| '__| / _` || __| / _ \ / __|
* /\__/ /| |_ | | | (_| || |_ | (_) |\__ \
* \____/ \__||_| \__,_| \__| \___/ |___/
*
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Copyright (C) 2025 Armen Deroian
*
*/
#include "ListTag.h"
#include "io/NBTBuffer.h"
#include "PrimitiveTag.h"
#include "StringTag.h"
#include "Value.h"
namespace stratos::nbt {
ListTag::ListTag(const std::initializer_list<int8_t> il) { init<ByteTag>(il); }
ListTag::ListTag(const std::initializer_list<int16_t> il) { init<ShortTag>(il); }
ListTag::ListTag(const std::initializer_list<int32_t> il) { init<IntTag>(il); }
ListTag::ListTag(const std::initializer_list<int64_t> il) { init<LongTag>(il); }
ListTag::ListTag(const std::initializer_list<float> il) { init<FloatTag>(il); }
ListTag::ListTag(const std::initializer_list<double> il) { init<DoubleTag>(il); }
ListTag::ListTag(const std::initializer_list<std::string> il) { init<StringTag>(il); }
ListTag::ListTag(const std::initializer_list<ByteArrayTag> il) { init<ByteArrayTag>(il); }
ListTag::ListTag(const std::initializer_list<ListTag> il) { init<ListTag>(il); }
ListTag::ListTag(const std::initializer_list<CompoundTag> il) { init<CompoundTag>(il); }
ListTag::ListTag(const std::initializer_list<IntArrayTag> il) { init<IntArrayTag>(il); }
ListTag::ListTag(const std::initializer_list<LongArrayTag> il) { init<LongArrayTag>(il); }
ListTag::ListTag(const std::initializer_list<TagValue> il) {
if (il.size() == 0) {
tagType = TagType::Null; // empty list
} else {
tagType = il.begin()->getType(); // set content type from first element
tags.reserve(il.size());
for (const auto& val : il) {
if (tagType != val.getType()) throw std::invalid_argument("The tag type does not match the list's content type");
}
tags.assign(il.begin(), il.end());
}
}
TagValue& ListTag::at(size_t i) { return tags.at(i); }
const TagValue& ListTag::at(size_t i) const {
return tags.at(i);
}
void ListTag::set(const size_t i, TagValue&& val) {
if (val.getType() != tagType) throw std::invalid_argument("The tag type does not match the list's content type");
tags.at(i) = std::move(val);
}
void ListTag::push_back(TagValueInitializer&& val) {
if (!val) throw std::invalid_argument("The value cannot be null");
if (tagType == TagType::Null) {
tagType = val.getType();
} else if (tagType != val.getType()) {
throw std::invalid_argument("The tag type does not match the list's content type");
}
tags.push_back(std::move(val));
}
void ListTag::reset(const TagType type) {
clear();
tagType = type;
}
void ListTag::read(NBTBuffer& buffer) {
clear();
tagType = static_cast<TagType>(buffer.readByte());
if (tagType == TagType::End) return;
int length = buffer.readInt();
while (length--) {
auto tag = Tag::create(tagType);
tag->read(buffer);
push_back(TagValueInitializer(std::move(tag)));
}
}
void ListTag::write(NBTBuffer& buffer) const {
if (tags.empty()) {
buffer.writeByte(0);
buffer.writeInt(0);
} else {
buffer.writeByte(static_cast<uint8_t>(tagType));
buffer.writeInt(static_cast<int>(tags.size()));
for (const auto& tag : tags) {
buffer.writeByte(static_cast<uint8_t>(tag.getType()));
tag.get().write(buffer);
}
}
}
bool operator==(const ListTag& lhs, const ListTag& rhs) {
return lhs.tagType == rhs.tagType && lhs.tags == rhs.tags;
}
bool operator!=(const ListTag& lhs, const ListTag& rhs) {
return !(lhs == rhs);
}
} // namespace stratos::nbt