public VxlReader(Stream s)
{
if (!s.ReadASCII(16).StartsWith("Voxel Animation"))
{
throw new InvalidDataException("Invalid vxl header");
}
s.ReadUInt32();
LimbCount = s.ReadUInt32();
s.ReadUInt32();
bodySize = s.ReadUInt32();
s.Seek(770, SeekOrigin.Current);
// Read Limb headers
Limbs = new VxlLimb[LimbCount];
for (var i = 0; i < LimbCount; i++)
{
Limbs[i] = new VxlLimb();
Limbs[i].Name = s.ReadASCII(16);
s.Seek(12, SeekOrigin.Current);
}
// Skip to the Limb footers
s.Seek(802 + 28 * LimbCount + bodySize, SeekOrigin.Begin);
var limbDataOffset = new uint[LimbCount];
for (var i = 0; i < LimbCount; i++)
{
limbDataOffset[i] = s.ReadUInt32();
s.Seek(8, SeekOrigin.Current);
Limbs[i].Scale = s.ReadFloat();
s.Seek(48, SeekOrigin.Current);
Limbs[i].Bounds = new float[6];
for (var j = 0; j < 6; j++)
{
Limbs[i].Bounds[j] = s.ReadFloat();
}
Limbs[i].Size = s.ReadBytes(3);
Limbs[i].Type = (NormalType)s.ReadByte();
}
for (var i = 0; i < LimbCount; i++)
{
s.Seek(802 + 28 * LimbCount + limbDataOffset[i], SeekOrigin.Begin);
ReadVoxelData(s, Limbs[i]);
}
}
static void ReadVoxelData(Stream s, VxlLimb l)
{
var baseSize = l.Size[0] * l.Size[1];
var colStart = new int[baseSize];
for (var i = 0; i < baseSize; i++)
{
colStart[i] = s.ReadInt32();
}
s.Seek(4 * baseSize, SeekOrigin.Current);
var dataStart = s.Position;
// Count the voxels in this limb
l.VoxelCount = 0;
for (var i = 0; i < baseSize; i++)
{
// Empty column
if (colStart[i] == -1)
{
continue;
}
s.Seek(dataStart + colStart[i], SeekOrigin.Begin);
var z = 0;
do
{
z += s.ReadUInt8();
var count = s.ReadUInt8();
z += count;
l.VoxelCount += count;
s.Seek(2 * count + 1, SeekOrigin.Current);
} while (z < l.Size[2]);
}
// Read the data
l.VoxelMap = new Dictionary <byte, VxlElement> [l.Size[0], l.Size[1]];
for (var i = 0; i < baseSize; i++)
{
// Empty column
if (colStart[i] == -1)
{
continue;
}
s.Seek(dataStart + colStart[i], SeekOrigin.Begin);
var x = (byte)(i % l.Size[0]);
var y = (byte)(i / l.Size[0]);
byte z = 0;
l.VoxelMap[x, y] = new Dictionary <byte, VxlElement>();
do
{
z += s.ReadUInt8();
var count = s.ReadUInt8();
for (var j = 0; j < count; j++)
{
var v = new VxlElement();
v.Color = s.ReadUInt8();
v.Normal = s.ReadUInt8();
l.VoxelMap[x, y].Add(z, v);
z++;
}
// Skip duplicate count
s.ReadUInt8();
} while (z < l.Size[2]);
}
}
