private void CreateHeader(string file_path)
{
using (BinaryReader br = new BinaryReader(File.Open(file_path, FileMode.Open, FileAccess.Read)))
{
string identity = Encoding.ASCII.GetString(br.ReadBytes(4));
if (identity != "VBSP")
{
throw new InvalidDataException("File is not a BSP or is malformed.");
}
header = new Header()
{
ident = identity,
version = br.ReadInt32(),
};
lump_t lump = new lump_t()
{
fileoffset = br.ReadInt32(),
filelength = br.ReadInt32(),
version = br.ReadInt32(),
uncompressedLength = br.ReadBytes(4)
};
if (lump.fileoffset > 0 && lump.filelength > 0)
{
long curPosition = br.BaseStream.Position;
br.BaseStream.Position = lump.fileoffset;
lump.chunk = br.ReadBytes(lump.filelength - 1);
br.BaseStream.Position = curPosition;
}
header.mapRevision = br.ReadInt32();
header.entlump = lump;
br.Close();
headerReady = true;
}
}
public void SplitEntities()
{
using (FileStream f = File.OpenRead(FilePath))
{
using (FileStream nf = File.Create(FilePath.Replace(".bsp", "_new.bsp")))
{
f.CopyTo(nf);
f.Close();
lump_t ent_lump = header.entlump;
byte[] clean_chunk = new byte[ent_lump.chunk.Length];
Array.Clear(clean_chunk, 0, clean_chunk.Length);
byte[] keep = GetNewLumps();
keep.CopyTo(clean_chunk, 0);
using (BinaryWriter lmp_br = new BinaryWriter(File.Open(FilePath.Replace(".bsp", "_new_l_0.lmp"), FileMode.Create)))
{
lmp_br.Write(0x14);
lmp_br.Write(0);
lmp_br.Write(ent_lump.version);
lmp_br.Write(ent_lump.filelength);
lmp_br.Write(header.mapRevision);
lmp_br.BaseStream.Position = 0x14;
lmp_br.BaseStream.Write(ent_lump.chunk, 0, ent_lump.chunk.Length);
lmp_br.Close();
}
nf.Position = ent_lump.fileoffset;
nf.Write(clean_chunk, 0, clean_chunk.Length);
nf.Close();
}
}
}
