public ResourceClusterFile(string file)
{
this.ClusterFile = file;
long fileSize = new FileInfo(file).Length;
using (FileStream reader = new FileStream(file, FileMode.Open, FileAccess.Read))
{
byte[] signature = FileTools.Read(reader, SIGNATURE.Length);
if (BinTools.Comp(signature, SIGNATURE) != 0)
{
throw new GameError("Bad signature");
}
this.ResCount = BinTools.ToInt(FileTools.Read(reader, 4));
if (this.ResCount < 0 || IntTools.IMAX < this.ResCount)
{
throw new GameError("Bad ResCount");
}
this.ResStartPositions = new long[this.ResCount];
this.ResSizes = new int[this.ResCount];
long count = SIGNATURE.Length + 4 + this.ResCount * 4;
for (int index = 0; index < this.ResCount; index++)
{
int resSize = BinTools.ToInt(FileTools.Read(reader, 4));
if (resSize < 0 || IntTools.IMAX < resSize)
{
throw new GameError("Bad resSize " + resSize);
}
this.ResStartPositions[index] = count;
this.ResSizes[index] = resSize;
if (LongTools.IMAX_64 - count < (long)resSize)
{
throw new GameError("Bad resSize " + resSize + ", " + count);
}
count += (long)resSize;
}
if (count + 64L != fileSize)
{
throw new GameError("Bad fileSize " + fileSize + ", " + count);
}
reader.Seek(0L, SeekOrigin.Begin);
byte[] hash = SecurityTools.GetSHA512(FileTools.Iterate(new LimitedReader(count, reader.Read).Read));
byte[] hash2 = FileTools.Read(reader, 64);
if (BinTools.Comp(hash, hash2) != 0)
{
throw new GameError("Bad hash");
}
}
}