diff options
Diffstat (limited to 'api/logic/minecraft/World.cpp')
| -rw-r--r-- | api/logic/minecraft/World.cpp | 239 |
1 files changed, 187 insertions, 52 deletions
diff --git a/api/logic/minecraft/World.cpp b/api/logic/minecraft/World.cpp index b39f940e..a2b4dac7 100644 --- a/api/logic/minecraft/World.cpp +++ b/api/logic/minecraft/World.cpp @@ -1,4 +1,4 @@ -/* Copyright 2015-2018 MultiMC Contributors +/* Copyright 2015-2021 MultiMC Contributors * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. @@ -30,6 +30,79 @@ #include <quazipfile.h> #include <quazipdir.h> +#include <QCoreApplication> + +#include <nonstd/optional> + +using nonstd::optional; +using nonstd::nullopt; + +GameType::GameType(nonstd::optional<int> original): + original(original) +{ + if(!original) { + return; + } + switch(*original) { + case 0: + type = GameType::Survival; + break; + case 1: + type = GameType::Creative; + break; + case 2: + type = GameType::Adventure; + break; + case 3: + type = GameType::Spectator; + break; + default: + break; + } +} + +QString GameType::toTranslatedString() const +{ + switch (type) + { + case GameType::Survival: + return QCoreApplication::translate("GameType", "Survival"); + case GameType::Creative: + return QCoreApplication::translate("GameType", "Creative"); + case GameType::Adventure: + return QCoreApplication::translate("GameType", "Adventure"); + case GameType::Spectator: + return QCoreApplication::translate("GameType", "Spectator"); + default: + break; + } + if(original) { + return QCoreApplication::translate("GameType", "Unknown (%1)").arg(*original); + } + return QCoreApplication::translate("GameType", "Undefined"); +} + +QString GameType::toLogString() const +{ + switch (type) + { + case GameType::Survival: + return "Survival"; + case GameType::Creative: + return "Creative"; + case GameType::Adventure: + return "Adventure"; + case GameType::Spectator: + return "Spectator"; + default: + break; + } + if(original) { + return QString("Unknown (%1)").arg(*original); + } + return "Undefined"; +} + std::unique_ptr <nbt::tag_compound> parseLevelDat(QByteArray data) { QByteArray output; @@ -38,15 +111,22 @@ std::unique_ptr <nbt::tag_compound> parseLevelDat(QByteArray data) return nullptr; } std::istringstream foo(std::string(output.constData(), output.size())); - auto pair = nbt::io::read_compound(foo); + try { + auto pair = nbt::io::read_compound(foo); - if(pair.first != "") - return nullptr; + if(pair.first != "") + return nullptr; - if(pair.second == nullptr) - return nullptr; + if(pair.second == nullptr) + return nullptr; - return std::move(pair.second); + return std::move(pair.second); + } + catch (const nbt::io::input_error &e) + { + qWarning() << "Unable to parse level.dat:" << e.what(); + return nullptr; + } } QByteArray serializeLevelDat(nbt::tag_compound * levelInfo) @@ -118,14 +198,31 @@ void World::repath(const QFileInfo &file) m_folderName = file.fileName(); if(file.isFile() && file.suffix() == "zip") { + m_iconFile = QString(); readFromZip(file); } else if(file.isDir()) { + QFileInfo assumedIconPath(file.absoluteFilePath() + "/icon.png"); + if(assumedIconPath.exists()) { + m_iconFile = assumedIconPath.absoluteFilePath(); + } readFromFS(file); } } +bool World::resetIcon() +{ + if(m_iconFile.isNull()) { + return false; + } + if(QFile(m_iconFile).remove()) { + m_iconFile = QString(); + return true; + } + return false; +} + void World::readFromFS(const QFileInfo &file) { auto bytes = getLevelDatDataFromFS(file); @@ -192,7 +289,7 @@ bool World::install(const QString &to, const QString &name) { return false; } - ok = !MMCZip::extractSubDir(&zip, m_containerOffsetPath, finalPath).isEmpty(); + ok = !MMCZip::extractSubDir(&zip, m_containerOffsetPath, finalPath); } else if(m_containerFile.isDir()) { @@ -251,14 +348,16 @@ bool World::rename(const QString &newName) return true; } -static QString read_string (nbt::value& parent, const char * name, const QString & fallback = QString()) +namespace { + +optional<QString> read_string (nbt::value& parent, const char * name) { try { auto &namedValue = parent.at(name); if(namedValue.get_type() != nbt::tag_type::String) { - return fallback; + return nullopt; } auto & tag_str = namedValue.as<nbt::tag_string>(); return QString::fromStdString(tag_str.get()); @@ -266,25 +365,25 @@ static QString read_string (nbt::value& parent, const char * name, const QString catch (const std::out_of_range &e) { // fallback for old world formats - qWarning() << "String NBT tag" << name << "could not be found. Defaulting to" << fallback; - return fallback; + qWarning() << "String NBT tag" << name << "could not be found."; + return nullopt; } catch (const std::bad_cast &e) { // type mismatch - qWarning() << "NBT tag" << name << "could not be converted to string. Defaulting to" << fallback; - return fallback; + qWarning() << "NBT tag" << name << "could not be converted to string."; + return nullopt; } } -static int64_t read_long (nbt::value& parent, const char * name, const int64_t & fallback = 0) +optional<int64_t> read_long (nbt::value& parent, const char * name) { try { auto &namedValue = parent.at(name); if(namedValue.get_type() != nbt::tag_type::Long) { - return fallback; + return nullopt; } auto & tag_str = namedValue.as<nbt::tag_long>(); return tag_str.get(); @@ -292,58 +391,98 @@ static int64_t read_long (nbt::value& parent, const char * name, const int64_t & catch (const std::out_of_range &e) { // fallback for old world formats - qWarning() << "Long NBT tag" << name << "could not be found. Defaulting to" << fallback; - return fallback; + qWarning() << "Long NBT tag" << name << "could not be found."; + return nullopt; } catch (const std::bad_cast &e) { // type mismatch - qWarning() << "NBT tag" << name << "could not be converted to long. Defaulting to" << fallback; - return fallback; + qWarning() << "NBT tag" << name << "could not be converted to long."; + return nullopt; } } -void World::loadFromLevelDat(QByteArray data) +optional<int> read_int (nbt::value& parent, const char * name) { try { - auto levelData = parseLevelDat(data); - if(!levelData) + auto &namedValue = parent.at(name); + if(namedValue.get_type() != nbt::tag_type::Int) { - is_valid = false; - return; + return nullopt; } + auto & tag_str = namedValue.as<nbt::tag_int>(); + return tag_str.get(); + } + catch (const std::out_of_range &e) + { + // fallback for old world formats + qWarning() << "Int NBT tag" << name << "could not be found."; + return nullopt; + } + catch (const std::bad_cast &e) + { + // type mismatch + qWarning() << "NBT tag" << name << "could not be converted to int."; + return nullopt; + } +} - auto &val = levelData->at("Data"); - is_valid = val.get_type() == nbt::tag_type::Compound; - if(!is_valid) - return; - - m_actualName = read_string(val, "LevelName", m_folderName); - +GameType read_gametype(nbt::value& parent, const char * name) { + return GameType(read_int(parent, name)); +} - int64_t temp = read_long(val, "LastPlayed", 0); - if(temp == 0) - { - m_lastPlayed = levelDatTime; - } - else - { - m_lastPlayed = QDateTime::fromMSecsSinceEpoch(temp); - } +} - m_randomSeed = read_long(val, "RandomSeed", 0); +void World::loadFromLevelDat(QByteArray data) +{ + auto levelData = parseLevelDat(data); + if(!levelData) + { + is_valid = false; + return; + } - qDebug() << "World Name:" << m_actualName; - qDebug() << "Last Played:" << m_lastPlayed.toString(); - qDebug() << "Seed:" << m_randomSeed; + nbt::value * valPtr = nullptr; + try { + valPtr = &levelData->at("Data"); } - catch (const nbt::io::input_error &e) - { - qWarning() << "Unable to load" << m_folderName << ":" << e.what(); + catch (const std::out_of_range &e) { + qWarning() << "Unable to read NBT tags from " << m_folderName << ":" << e.what(); is_valid = false; return; } + nbt::value &val = *valPtr; + + is_valid = val.get_type() == nbt::tag_type::Compound; + if(!is_valid) + return; + + auto name = read_string(val, "LevelName"); + m_actualName = name ? *name : m_folderName; + + auto timestamp = read_long(val, "LastPlayed"); + m_lastPlayed = timestamp ? QDateTime::fromMSecsSinceEpoch(*timestamp) : levelDatTime; + + m_gameType = read_gametype(val, "GameType"); + + optional<int64_t> randomSeed; + try { + auto &WorldGen_val = val.at("WorldGenSettings"); + randomSeed = read_long(WorldGen_val, "seed"); + } + catch (const std::out_of_range &) {} + if(!randomSeed) { + randomSeed = read_long(val, "RandomSeed"); + } + m_randomSeed = randomSeed ? *randomSeed : 0; + + qDebug() << "World Name:" << m_actualName; + qDebug() << "Last Played:" << m_lastPlayed.toString(); + if(randomSeed) { + qDebug() << "Seed:" << *randomSeed; + } + qDebug() << "GameType:" << m_gameType.toLogString(); } bool World::replace(World &with) @@ -379,7 +518,3 @@ bool World::operator==(const World &other) const { return is_valid == other.is_valid && folderName() == other.folderName(); } -bool World::strongCompare(const World &other) const -{ - return is_valid == other.is_valid && folderName() == other.folderName(); -} |