bool CHuffman::readDictionaryNumberfromEnd(const CExeFile& ExeFile)
{
const uint32_t bytesToCheck = ExeFile.getExeDataSize()-DICT_SIG_BYTES;
uint8_t *data_ptr = static_cast<uint8_t*>(ExeFile.getHeaderData())+bytesToCheck;
for( Uint32 i=0; i<bytesToCheck ; i++ )
{
data_ptr--;
if( memcmp(data_ptr, DICTSIG, DICT_SIG_BYTES) == 0 )
{
uint8_t *dictdata = data_ptr-(DICT_SIZE*sizeof(nodestruct))+DICT_SIG_BYTES;
const Uint32 size = DICT_SIZE*sizeof(nodestruct);
memcpy(m_nodes, dictdata, size);
//dumpToExternalFile("dump.huffmann");
return true;
}
}
return false;
}
bool CHuffman::readDictionaryNumber( const CExeFile& ExeFile,
const int dictnum,
const unsigned int dictOffset )
{
uint8_t dictnumleft = dictnum;
if( dictOffset == 0) // don't seek to offset
{
uint8_t *data_ptr = ExeFile.getRawData();
for( Uint32 i=0; i<ExeFile.getExeDataSize() ; i++ )
{
if( memcmp(data_ptr, DICTSIG, DICT_SIG_BYTES) == 0 )
{
if(dictnumleft == 0)
{
uint8_t *dictdata = data_ptr-(DICT_SIZE*sizeof(nodestruct))+DICT_SIG_BYTES;
const Uint32 size = DICT_SIZE*sizeof(nodestruct);
memcpy(m_nodes, dictdata, size);
return true;
}
dictnumleft--;
}
data_ptr++;
}
return false;
}
else // Otherwise copy the dictionary normally
{
uint8_t *dictdata = (byte*)(ExeFile.getHeaderData())+dictOffset;
memcpy(reinterpret_cast<char*>(m_nodes), dictdata, DICT_SIZE*sizeof(nodestruct));
return true;
}
}
CHelp::CHelp(CExeFile &ExeFile, const std::string &type) :
mp_TextViewer(NULL)
{
std::string Text;
std::string DataDirectory = ExeFile.getDataDirectory();
char episode = ExeFile.getEpisode();
// Read the Storytext
if(type == "Game")
{
if(episode==1)
{
// We suppose that we are using version 131. Maybe it must be extended
std::string filename = DataDirectory;
if(DataDirectory != "")
filename += "/";
filename += "helptext.ck1";
std::ifstream File; OpenGameFileR(File, filename, std::ios::binary);
if(!File) return;
while(!File.eof())
Text.push_back(File.get());
File.close();
Text.erase(Text.size()-1);
}
else
{
// Here the Text file is within the EXE-File
unsigned long startflag=0, endflag=0;
unsigned char *text_data = NULL;
if(!ExeFile.getHeaderData()) return;
if(episode == 2)
{
startflag = 0x15DC0;
endflag = 0x1659F;
}
else // Episode 3
{
startflag = 0x17BD0;
endflag = 0x1839B;
}
text_data = ExeFile.getRawData();
for(unsigned long i=startflag ; i<endflag ; i++ )
Text.push_back(text_data[i]);
}
}
else
{
std::string filename = "HELPTEXT.CKP";
std::ifstream File; OpenGameFileR(File, filename, std::ios::binary);
if(!File) return;
while(!File.eof())
Text.push_back(File.get());
File.close();
Text.erase(Text.size()-1);
}
// Create the Text ViewerBox and stores the text there!
mp_TextViewer = new CTextViewer(g_pVideoDriver->mp_VideoEngine->getFGLayerSurface(), 0, 8, 320, 160);
mp_TextViewer->formatText(Text);
}