private void ReadSceneryInstances(BinaryReader br, uint size)
{
size -= BinaryUtil.AlignReader(br, 0x10);
Debug.Assert(size % 0x40 == 0);
var count = (int)size / 0x40;
_scenerySection.Instances = new List <SceneryInstance>(count);
for (int i = 0; i < count; ++i)
{
var instance = new SceneryInstance();
var internalInstance = BinaryUtil.ReadUnmanagedStruct <SceneryInstanceInternal>(br);
instance.InfoIndex = internalInstance.SceneryInfoNumber;
instance.Transform = Matrix4x4.Multiply(internalInstance.Rotation,
Matrix4x4.CreateTranslation(internalInstance.Position));
_scenerySection.Instances.Add(instance);
}
}
protected override void ReadChunks(BinaryReader br, uint containerSize)
{
var endPos = br.BaseStream.Position + containerSize;
while (br.BaseStream.Position < endPos)
{
var chunkId = br.ReadUInt32();
var chunkSize = br.ReadUInt32();
var chunkEndPos = br.BaseStream.Position + chunkSize;
if ((chunkId & 0x80000000) == 0x80000000)
{
ReadChunks(br, chunkSize);
}
else
{
switch (chunkId)
{
case InfoChunkId:
{
_texturePack.Version = br.ReadUInt32();
_texturePack.Name = new string(br.ReadChars(28)).Trim('\0');
_texturePack.PipelinePath = new string(br.ReadChars(64)).Trim('\0');
_texturePack.Hash = br.ReadUInt32();
break;
}
case 0x33310003:
{
_compressed = true;
Debug.Assert(chunkSize % Marshal.SizeOf <DataOffsetStruct>() == 0,
"chunkSize % Marshal.SizeOf<DataOffsetStruct>() == 0");
while (br.BaseStream.Position < chunkEndPos)
{
var dos = br.GetStruct <DataOffsetStruct>();
var curPos = br.BaseStream.Position;
br.BaseStream.Position = dos.Offset;
ReadCompressedData(br, dos);
br.BaseStream.Position = curPos;
}
break;
}
case TexChunkId:
{
var textureStructSize = Marshal.SizeOf <TextureStruct>();
Debug.Assert(chunkSize % textureStructSize == 0);
var numTextures = chunkSize / textureStructSize;
for (var j = 0; j < numTextures; j++)
{
ReadTexture(br);
}
break;
}
case TexDataChunkId:
{
if (!_compressed)
{
BinaryUtil.AlignReader(br, 0x80);
var basePos = br.BaseStream.Position;
foreach (var t in _texturePack.Textures)
{
br.BaseStream.Position = basePos + t.DataOffset;
t.Data = new byte[t.DataSize];
br.Read(t.Data, 0, t.Data.Length);
if (t.PaletteSize > 0)
{
br.BaseStream.Position = basePos + t.PaletteOffset;
t.Palette = new byte[t.PaletteSize];
br.Read(t.Palette, 0, t.Palette.Length);
}
}
}
break;
}
case DDSChunkId:
{
foreach (var t in _texturePack.Textures)
{
br.BaseStream.Seek(20, SeekOrigin.Current);
t.Format = br.ReadUInt32();
//Console.WriteLine($"{t.Name} = 0x{((int)t.Format):X8}");
br.BaseStream.Seek(0x08, SeekOrigin.Current);
}
break;
}
}
}
br.BaseStream.Position = chunkEndPos;
}
}