sneedmc/logic/InstanceFactory.cpp
2015-02-06 01:18:02 +01:00

170 lines
4.6 KiB
C++

/* Copyright 2013-2015 MultiMC Contributors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <QDir>
#include <QFileInfo>
#include "logic/settings/INIFile.h"
#include "logic/settings/INISettingsObject.h"
#include "logic/settings/Setting.h"
#include <pathutils.h>
#include "logger/QsLog.h"
#include "logic/InstanceFactory.h"
#include "logic/BaseInstance.h"
#include "logic/LegacyInstance.h"
#include "logic/LegacyFTBInstance.h"
#include "logic/OneSixInstance.h"
#include "logic/OneSixFTBInstance.h"
#include "logic/OneSixInstance.h"
#include "logic/BaseVersion.h"
#include "logic/minecraft/MinecraftVersion.h"
InstanceFactory InstanceFactory::loader;
InstanceFactory::InstanceFactory() : QObject(NULL)
{
}
InstanceFactory::InstLoadError InstanceFactory::loadInstance(InstancePtr &inst,
const QString &instDir)
{
auto m_settings = new INISettingsObject(PathCombine(instDir, "instance.cfg"));
m_settings->registerSetting("InstanceType", "Legacy");
QString inst_type = m_settings->get("InstanceType").toString();
// FIXME: replace with a map lookup, where instance classes register their types
if (inst_type == "OneSix" || inst_type == "Nostalgia")
{
inst.reset(new OneSixInstance(instDir, m_settings));
}
else if (inst_type == "Legacy")
{
inst.reset(new LegacyInstance(instDir, m_settings));
}
else if (inst_type == "LegacyFTB")
{
inst.reset(new LegacyFTBInstance(instDir, m_settings));
}
else if (inst_type == "OneSixFTB")
{
inst.reset(new OneSixFTBInstance(instDir, m_settings));
}
else
{
return InstanceFactory::UnknownLoadError;
}
inst->init();
return NoLoadError;
}
InstanceFactory::InstCreateError InstanceFactory::createInstance(InstancePtr &inst, BaseVersionPtr version,
const QString &instDir, const InstanceFactory::InstType type)
{
QDir rootDir(instDir);
QLOG_DEBUG() << instDir.toUtf8();
if (!rootDir.exists() && !rootDir.mkpath("."))
{
QLOG_ERROR() << "Can't create instance folder" << instDir;
return InstanceFactory::CantCreateDir;
}
auto mcVer = std::dynamic_pointer_cast<MinecraftVersion>(version);
if (!mcVer)
{
QLOG_ERROR() << "Can't create instance for non-existing MC version";
return InstanceFactory::NoSuchVersion;
}
auto m_settings = new INISettingsObject(PathCombine(instDir, "instance.cfg"));
m_settings->registerSetting("InstanceType", "Legacy");
if (type == NormalInst)
{
m_settings->set("InstanceType", "OneSix");
inst.reset(new OneSixInstance(instDir, m_settings));
inst->setIntendedVersionId(version->descriptor());
}
else if (type == FTBInstance)
{
if(mcVer->usesLegacyLauncher())
{
m_settings->set("InstanceType", "LegacyFTB");
inst.reset(new LegacyFTBInstance(instDir, m_settings));
inst->setIntendedVersionId(version->descriptor());
}
else
{
m_settings->set("InstanceType", "OneSixFTB");
inst.reset(new OneSixFTBInstance(instDir, m_settings));
inst->setIntendedVersionId(version->descriptor());
}
}
else
{
delete m_settings;
return InstanceFactory::NoSuchVersion;
}
inst->init();
// FIXME: really, how do you even know?
return InstanceFactory::NoCreateError;
}
InstanceFactory::InstCreateError InstanceFactory::copyInstance(InstancePtr &newInstance,
InstancePtr &oldInstance,
const QString &instDir)
{
QDir rootDir(instDir);
QLOG_DEBUG() << instDir.toUtf8();
if (!copyPath(oldInstance->instanceRoot(), instDir))
{
rootDir.removeRecursively();
return InstanceFactory::CantCreateDir;
}
INISettingsObject settings_obj(PathCombine(instDir, "instance.cfg"));
settings_obj.registerSetting("InstanceType", "Legacy");
QString inst_type = settings_obj.get("InstanceType").toString();
if (inst_type == "OneSixFTB")
settings_obj.set("InstanceType", "OneSix");
if (inst_type == "LegacyFTB")
settings_obj.set("InstanceType", "Legacy");
oldInstance->copy(instDir);
auto error = loadInstance(newInstance, instDir);
switch (error)
{
case NoLoadError:
return NoCreateError;
case NotAnInstance:
rootDir.removeRecursively();
return CantCreateDir;
default:
case UnknownLoadError:
rootDir.removeRecursively();
return UnknownCreateError;
}
}