public int ValueExists(DataBlock.Path path, uint offset, uint length)
{
for (int z = 0; z < data.Count; z++)
{
if (data[z].ContainsValue(path, offset, length))
{
return(z);
}
}
return(-1);
}
public dynamic GetValue(Racer racer, DataBlock.Path path, uint offset, Core.DataType type, uint length)
{
int index = ValueExists(path, offset, length);
if (index < 0)
{
data.Add(new DataBlock(racer, path, offset, type, length));
return(data.Last().GetValue(offset, type, length));
}
else
{
return(data[index].GetValue(offset, type, length));
}
}
public void Import(string filename)
{
//need to reimplement endianness converting, but low priority cuz there is probably not going to be variance from exporter across platforms
//string filename = @"K:\Projects\swe1r\overlay\SWE1R Overlay\Format\Racer.State.WriteTest.e1rs";
FileStream file = File.OpenRead(filename);
uint headerCRC32 = 0;
uint dataCRC32 = 0;
// READ HEADER
// read data
byte[] inMagicWord = FileIO.ReadChunk(file, fileMagicWord.Length, ref headerCRC32);
if (!Win32.ByteArrayCompare(inMagicWord, fileMagicWord))
{
throw new Exception("Read Savestate: Invalid filetype.");
}
byte inVerSrc = FileIO.ReadChunk(file, 0x1, ref headerCRC32)[0]; //ideal/generated-from version
byte inVerRead = FileIO.ReadChunk(file, 0x1, ref headerCRC32)[0]; //readable version
bool inBigEndian = Convert.ToBoolean(FileIO.ReadChunk(file, 0x1, ref headerCRC32)[0]);
byte[] inDataLen = FileIO.ReadChunk(file, 0x4, ref headerCRC32);
byte[] inDataOff = FileIO.ReadChunk(file, 0x2, ref headerCRC32);
byte[] inHeaderCRC32 = FileIO.ReadChunk(file, 0x4);
// convert to big endian if needed
//if (inBigEndian)
//{
// inDataLen = inDataLen.Reverse().ToArray();
// inDataOff = inDataOff.Reverse().ToArray();
// inHeaderCRC32 = inHeaderCRC32.Reverse().ToArray();
//}
// check crc32
if (Crc32Algorithm.Append(headerCRC32, inHeaderCRC32, 0, 0x4) != 0x2144DF1C)
{
throw new Exception("Read Savestate: Header invalid.");
}
// check eof
file.Seek(BitConverter.ToUInt16(inDataOff, 0) + BitConverter.ToUInt32(inDataLen, 0), SeekOrigin.Begin);
byte[] inEOFCheck = FileIO.ReadChunk(file, fileEOFWord.Length);
if (!Win32.ByteArrayCompare(inEOFCheck, fileEOFWord))
{
throw new Exception("Read Savestate: File length invalid.");
}
// READ DATA
file.Seek(BitConverter.ToUInt16(inDataOff, 0), SeekOrigin.Begin);
List <DataBlock> inDataBlocks = new List <DataBlock>();
while (file.Position < BitConverter.ToUInt16(inDataOff, 0) + BitConverter.ToUInt32(inDataLen, 0) - 4)
{
uint blockCRC32 = 0;
DataBlock.Path p = (DataBlock.Path)FileIO.ReadChunk(file, 0x1, ref blockCRC32, ref dataCRC32)[0];
uint o = BitConverter.ToUInt32(FileIO.ReadChunk(file, 0x4, ref blockCRC32, ref dataCRC32), 0);
int l = (int)BitConverter.ToUInt32(FileIO.ReadChunk(file, 0x4, ref blockCRC32, ref dataCRC32), 0); //typecasted to preserve original encoding from uint
//byte[] d = FileIO.ReadChunk(file, BitConverter.ToInt32((inBigEndian ? inDataBlocks.Last().length.Reverse().ToArray() : inDataBlocks.Last().length), 0), ref blockCRC32, ref dataCRC32);
byte[] d = FileIO.ReadChunk(file, l, ref blockCRC32, ref dataCRC32);
inDataBlocks.Add(new DataBlock(d, p, o, Core.DataType.None));
byte[] crc32 = FileIO.ReadChunk(file, 0x4, ref dataCRC32);
//if (inBigEndian)
// inDataBlocks.Last().ReverseArrays();
if (Crc32Algorithm.Append(blockCRC32, crc32) != 0x2144DF1C)
{
throw new Exception("Read Savestate: Data block " + inDataBlocks.Count + " invalid.");
}
}
// check entire data set is valid
byte[] inDataCRC32 = FileIO.ReadChunk(file, 0x4);
//if (inBigEndian)
// inDataCRC32 = inDataCRC32.Reverse().ToArray();
if (Crc32Algorithm.Append(dataCRC32, inDataCRC32, 0, 0x4) != 0x2144DF1C)
{
throw new Exception("Read Savestate: Data invalid.");
}
// check end of data is actually end of file
inEOFCheck = FileIO.ReadChunk(file, fileEOFWord.Length);
if (!Win32.ByteArrayCompare(inEOFCheck, fileEOFWord))
{
throw new Exception("Read Savestate: File length invalid.");
}
//Savestate output = new Savestate(inDataBlocks.ToArray(), inDataPod, inDataTrack);
//need to implement a way to update data blocks with data not sourced from the game directly in order to actually use the read data
file.Dispose();
file.Close();
//return output;
}
