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/*
* CMapService.cpp, part of VCMI engine
*
* Authors: listed in file AUTHORS in main folder
*
* License: GNU General Public License v2.0 or later
* Full text of license available in license.txt file, in main folder
*
*/
#include "StdInc.h"
#include "CMapService.h"
#include "../json/JsonUtils.h"
#include "../filesystem/Filesystem.h"
#include "../filesystem/CBinaryReader.h"
#include "../filesystem/CCompressedStream.h"
#include "../filesystem/CMemoryStream.h"
#include "../filesystem/CMemoryBuffer.h"
#include "../modding/CModHandler.h"
#include "../modding/ModDescription.h"
#include "../modding/ModScope.h"
#include "../VCMI_Lib.h"
#include "CMap.h"
#include "MapFormat.h"
#include "MapFormatH3M.h"
#include "MapFormatJson.h"
VCMI_LIB_NAMESPACE_BEGIN
std::unique_ptr<CMap> CMapService::loadMap(const ResourcePath & name, IGameCallback * cb) const
{
std::string modName = VLC->modh->findResourceOrigin(name);
std::string encoding = VLC->modh->findResourceEncoding(name);
auto stream = getStreamFromFS(name);
return getMapLoader(stream, name.getName(), modName, encoding)->loadMap(cb);
}
std::unique_ptr<CMapHeader> CMapService::loadMapHeader(const ResourcePath & name) const
{
std::string modName = VLC->modh->findResourceOrigin(name);
std::string encoding = VLC->modh->findResourceEncoding(name);
auto stream = getStreamFromFS(name);
return getMapLoader(stream, name.getName(), modName, encoding)->loadMapHeader();
}
std::unique_ptr<CMap> CMapService::loadMap(const uint8_t * buffer, int size, const std::string & name, const std::string & modName, const std::string & encoding, IGameCallback * cb) const
{
auto stream = getStreamFromMem(buffer, size);
std::unique_ptr<CMap> map(getMapLoader(stream, name, modName, encoding)->loadMap(cb));
std::unique_ptr<CMapHeader> header(map.get());
//might be original campaign and require patch
getMapPatcher(name)->patchMapHeader(header);
header.release();
return map;
}
std::unique_ptr<CMapHeader> CMapService::loadMapHeader(const uint8_t * buffer, int size, const std::string & name, const std::string & modName, const std::string & encoding) const
{
auto stream = getStreamFromMem(buffer, size);
std::unique_ptr<CMapHeader> header = getMapLoader(stream, name, modName, encoding)->loadMapHeader();
//might be original campaign and require patch
getMapPatcher(name)->patchMapHeader(header);
return header;
}
void CMapService::saveMap(const std::unique_ptr<CMap> & map, boost::filesystem::path fullPath) const
{
CMemoryBuffer serializeBuffer;
{
CMapSaverJson saver(&serializeBuffer);
saver.saveMap(map);
}
{
boost::filesystem::remove(fullPath);
std::ofstream tmp(fullPath.c_str(), std::ofstream::binary);
tmp.write(reinterpret_cast<const char *>(serializeBuffer.getBuffer().data()), serializeBuffer.getSize());
tmp.flush();
tmp.close();
}
}
ModCompatibilityInfo CMapService::verifyMapHeaderMods(const CMapHeader & map)
{
const auto & activeMods = VLC->modh->getActiveMods();
ModCompatibilityInfo missingMods;
ModCompatibilityInfo missingModsFiltered;
for(const auto & mapMod : map.mods)
{
if(vstd::contains(activeMods, mapMod.first))
{
const auto & modInfo = VLC->modh->getModInfo(mapMod.first);
if(modInfo.getVersion().compatible(mapMod.second.version))
continue;
}
missingMods[mapMod.first] = mapMod.second;
}
//filter child mods
for(const auto & mapMod : missingMods)
{
if(!mapMod.second.parent.empty() && missingMods.count(mapMod.second.parent))
continue;
missingModsFiltered.insert(mapMod);
}
return missingModsFiltered;
}
std::unique_ptr<CInputStream> CMapService::getStreamFromFS(const ResourcePath & name)
{
return CResourceHandler::get()->load(name);
}
std::unique_ptr<CInputStream> CMapService::getStreamFromMem(const uint8_t * buffer, int size)
{
return std::unique_ptr<CInputStream>(new CMemoryStream(buffer, size));
}
std::unique_ptr<IMapLoader> CMapService::getMapLoader(std::unique_ptr<CInputStream> & stream, std::string mapName, std::string modName, std::string encoding)
{
// Read map header
CBinaryReader reader(stream.get());
ui32 header = reader.readUInt32();
reader.getStream()->seek(0);
//check for ZIP magic. Zip files are VCMI maps
switch(header)
{
case 0x06054b50:
case 0x04034b50:
case 0x02014b50:
return std::unique_ptr<IMapLoader>(new CMapLoaderJson(stream.get()));
break;
default:
// Check which map format is used
// gzip header is 3 bytes only in size
switch(header & 0xffffff)
{
// gzip header magic number, reversed for LE
case 0x00088B1F:
stream = std::unique_ptr<CInputStream>(new CCompressedStream(std::move(stream), true));
return std::unique_ptr<IMapLoader>(new CMapLoaderH3M(mapName, modName, encoding, stream.get()));
case static_cast<int>(EMapFormat::WOG) :
case static_cast<int>(EMapFormat::AB) :
case static_cast<int>(EMapFormat::ROE) :
case static_cast<int>(EMapFormat::SOD) :
case static_cast<int>(EMapFormat::CHR) :
case static_cast<int>(EMapFormat::HOTA) :
return std::unique_ptr<IMapLoader>(new CMapLoaderH3M(mapName, modName, encoding, stream.get()));
default :
throw std::runtime_error("Unknown map format");
}
}
}
static JsonNode loadPatches(const std::string & path)
{
JsonNode node = JsonUtils::assembleFromFiles(path);
for (auto & entry : node.Struct())
JsonUtils::validate(entry.second, "vcmi:mapHeader", "patch for " + entry.first);
node.setModScope(ModScope::scopeMap());
return node;
}
std::unique_ptr<IMapPatcher> CMapService::getMapPatcher(std::string scenarioName)
{
static const JsonNode node = loadPatches("config/mapOverrides.json");
boost::to_lower(scenarioName);
logGlobal->debug("Request to patch map %s", scenarioName);
return std::unique_ptr<IMapPatcher>(new CMapPatcher(node[scenarioName]));
}
VCMI_LIB_NAMESPACE_END
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