bool VerifyFile()
{
FileInfo fileinfo = new FileInfo(gamefile);
if (fileinfo.Length != 2527744)
{
SetStatus("Wrong filesize", true);
return false;
}
else
{
const UInt32 originalCRC = 0x8DAEDE7C;
const UInt32 firtpartCRC = 0x56126683;
bool makebackup = false;
bool goodfile = false;
bool original = false;
UInt32 crc = new CRC().CheckCRC32(gamefile, fileinfo.Length);
if (crc == originalCRC)
{
SetStatus("Original file", false);
goodfile = original = true;
}
else
{
crc = new CRC().CheckCRC32(gamefile, 0x64BCF);
if (crc == firtpartCRC)
{
SetStatus("Modified file", false);
goodfile = true;
}
else
SetStatus("Unknown file", true);
}
if (File.Exists(gamebackup))
{
FileInfo backupinfo = new FileInfo(gamebackup);
if (backupinfo.Length != 2527744) makebackup = true;
else
{
UInt32 backupCRC = new CRC().CheckCRC32(gamebackup, backupinfo.Length);
if (backupCRC != originalCRC) makebackup = true;
}
}
else
makebackup = true;
if (original && makebackup)
File.Copy(gamefile, gamebackup, true);
if (makebackup)
{
Restore.Opacity = 0.5;
Restore.IsEnabled = false;
}
else
{
Restore.Opacity = 1.0;
Restore.IsEnabled = true;
}
return goodfile;
}
}
bool VerifyFile()
{
FileInfo fileinfo = new FileInfo(gamefile);
if (fileinfo.Length != 2527744)
{
SetStatus("Wrong filesize", true);
return(false);
}
else
{
const UInt32 originalCRC = 0x8DAEDE7C;
const UInt32 firtpartCRC = 0x56126683;
bool makebackup = false;
bool goodfile = false;
bool original = false;
UInt32 crc = new CRC().CheckCRC32(gamefile, fileinfo.Length);
if (crc == originalCRC)
{
SetStatus("Original file", false);
goodfile = original = true;
}
else
{
crc = new CRC().CheckCRC32(gamefile, 0x64BCF);
if (crc == firtpartCRC)
{
SetStatus("Modified file", false);
goodfile = true;
}
else
{
SetStatus("Unknown file", true);
}
}
if (File.Exists(gamebackup))
{
FileInfo backupinfo = new FileInfo(gamebackup);
if (backupinfo.Length != 2527744)
{
makebackup = true;
}
else
{
UInt32 backupCRC = new CRC().CheckCRC32(gamebackup, backupinfo.Length);
if (backupCRC != originalCRC)
{
makebackup = true;
}
}
}
else
{
makebackup = true;
}
if (original && makebackup)
{
File.Copy(gamefile, gamebackup, true);
}
if (makebackup)
{
Restore.Opacity = 0.5;
Restore.IsEnabled = false;
}
else
{
Restore.Opacity = 1.0;
Restore.IsEnabled = true;
}
return(goodfile);
}
}
