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cycrow |
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#include "VirtualFileSystem.h"
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#include "File_IO.h"
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#include "CatFile.h"
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CVirtualFileSystem::CVirtualFileSystem()
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{
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m_bLoaded = false;
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m_pMap = NULL;
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m_sAddon = "";
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}
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CVirtualFileSystem::~CVirtualFileSystem(void)
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{
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if ( m_pMap )
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delete m_pMap;
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}
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bool CVirtualFileSystem::LoadFilesystem(CyString &dir, CyString &mod, int maxPatch)
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{
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m_sDir = dir;
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m_bLoaded = false;
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if ( m_pMap ) delete m_pMap;
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m_pMap = new MAP;
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int number = 1;
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while ( CFileIO(dir + "/" + CyString::Number(number).PadNumber(2) + ".cat").Exists() )
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{
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if ( maxPatch && maxPatch > number ) break;
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CyString file = dir + "/" + CyString::Number(number).PadNumber(2);
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if ( !CFileIO(file + ".dat").Exists() )
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break;
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CCatFile cat;
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if ( cat.Open(file + ".cat", m_sAddon, CATREAD_JUSTCONTENTS, false) == CATERR_NONE )
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{
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for ( CListNode<SInCatFile> *c = cat.GetFiles()->Front(); c; c = c->next() )
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{
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(*m_pMap)[CFileIO(c->Data()->sFile).GetFullFilename().ToLower().c_str()] = CyString(file + ".cat").c_str();
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m_bLoaded = true;
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}
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}
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++number;
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}
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if ( !mod.Empty() )
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LoadMod(mod);
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return m_bLoaded;
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}
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bool CVirtualFileSystem::LoadMod(CyString &mod)
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{
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bool loaded = false;
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CCatFile cat;
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if ( CCatFile::Opened(cat.Open(mod, m_sAddon, CATREAD_JUSTCONTENTS, false), false) )
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{
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for ( CListNode<SInCatFile> *c = cat.GetFiles()->Front(); c; c = c->next() )
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{
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(*m_pMap)[CFileIO(c->Data()->sFile).GetFullFilename().ToLower().c_str()] = mod.c_str();
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loaded = true;
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}
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}
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return loaded;
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}
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CyString CVirtualFileSystem::GetFile(CyString &file)
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{
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if ( !m_pMap ) return NullString;
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MAP::iterator itr = m_pMap->find(CFileIO(file).GetFullFilename().ToLower().c_str());
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if ( itr == m_pMap->end() ) return NullString;
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return itr->second;
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}
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bool CVirtualFileSystem::ExtractGameFile(CyString &file, CyString &to)
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{
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CyString sIn = GetFile(file);
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if ( sIn.Empty() ) return false;
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CCatFile catFile;
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if ( catFile.Open(sIn, m_sAddon, CATREAD_CATDECRYPT, false) == CATERR_NONE )
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{
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// check for the file
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if ( catFile.ExtractFile(file, to) )
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return true;
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if ( catFile.Error() == CATERR_INVALIDDEST || catFile.Error() == CATERR_CANTCREATEDIR )
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{
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if ( catFile.ExtractFile(file) )
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return true;
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}
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}
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return false;
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}
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