public void Write(BinaryWriter bw, SimpleSkinVertexType vertexType)
{
this.Position.Write(bw);
for (int i = 0; i < 4; i++)
{
bw.Write(this.BoneIndices[i]);
}
for (int i = 0; i < 4; i++)
{
bw.Write(this.Weights[i]);
}
this.Normal.Write(bw);
this.UV.Write(bw);
if (vertexType == SimpleSkinVertexType.Color)
{
if (this.Color.HasValue)
{
bw.WriteColor(this.Color.Value, ColorFormat.RgbaU8);
}
else
{
bw.WriteColor(new Color(0, 0, 0, 255), ColorFormat.RgbaU8);
}
}
}
public SimpleSkin(Stream stream)
{
using (BinaryReader br = new BinaryReader(stream))
{
uint magic = br.ReadUInt32();
if (magic != 0x00112233)
{
throw new Exception("Not a valid SKN file");
}
ushort major = br.ReadUInt16();
ushort minor = br.ReadUInt16();
if (major != 2 && major != 4 && minor != 1)
{
throw new Exception("This SKN version is not supported");
}
uint submeshCount = br.ReadUInt32();
for (int i = 0; i < submeshCount; i++)
{
this.Submeshes.Add(new SimpleSkinSubmesh(br));
}
if (major == 4)
{
uint unknown = br.ReadUInt32();
}
uint indexCount = br.ReadUInt32();
uint vertexCount = br.ReadUInt32();
uint vertexSize = major == 4 ? br.ReadUInt32() : 52;
SimpleSkinVertexType vertexType = major == 4 ? (SimpleSkinVertexType)br.ReadUInt32() : SimpleSkinVertexType.Basic;
R3DBox boundingBox = major == 4 ? new R3DBox(br) : R3DBox.Infinite;
R3DSphere boundingSphere = major == 4 ? new R3DSphere(br) : R3DSphere.Infinite;
List <ushort> indices = new List <ushort>();
List <SimpleSkinVertex> vertices = new List <SimpleSkinVertex>();
for (int i = 0; i < indexCount; i++)
{
indices.Add(br.ReadUInt16());
}
for (int i = 0; i < vertexCount; i++)
{
vertices.Add(new SimpleSkinVertex(br, vertexType));
}
foreach (SimpleSkinSubmesh submesh in this.Submeshes)
{
List <ushort> submeshIndices = indices.GetRange((int)submesh._startIndex, (int)submesh._indexCount);
ushort minIndex = submeshIndices.Min();
submesh.Indices = submeshIndices.Select(x => x -= minIndex).ToList();
submesh.Vertices = vertices.GetRange((int)submesh._startVertex, (int)submesh._vertexCount);
}
}
}
public SimpleSkinVertex(BinaryReader br, SimpleSkinVertexType vertexType)
{
this.Position = new Vector3(br);
this.BoneIndices = new byte[] { br.ReadByte(), br.ReadByte(), br.ReadByte(), br.ReadByte() };
this.Weights = new float[] { br.ReadSingle(), br.ReadSingle(), br.ReadSingle(), br.ReadSingle() };
this.Normal = new Vector3(br);
this.UV = new Vector2(br);
if (vertexType == SimpleSkinVertexType.Color)
{
this.Color = br.ReadColor(ColorFormat.RgbaU8);
}
}
public SimpleSkin(Stream stream)
{
using (BinaryReader br = new BinaryReader(stream))
{
uint magic = br.ReadUInt32();
if (magic != 0x00112233)
{
throw new InvalidFileSignatureException();
}
ushort major = br.ReadUInt16();
ushort minor = br.ReadUInt16();
if (major != 0 && major != 2 && major != 4 && minor != 1)
{
throw new UnsupportedFileVersionException();
}
uint indexCount = 0;
uint vertexCount = 0;
SimpleSkinVertexType vertexType = SimpleSkinVertexType.Basic;
if (major == 0)
{
indexCount = br.ReadUInt32();
vertexCount = br.ReadUInt32();
}
else
{
uint submeshCount = br.ReadUInt32();
for (int i = 0; i < submeshCount; i++)
{
this.Submeshes.Add(new SimpleSkinSubmesh(br));
}
if (major == 4)
{
uint flags = br.ReadUInt32();
}
indexCount = br.ReadUInt32();
vertexCount = br.ReadUInt32();
uint vertexSize = major == 4 ? br.ReadUInt32() : 52;
vertexType = major == 4 ? (SimpleSkinVertexType)br.ReadUInt32() : SimpleSkinVertexType.Basic;
R3DBox boundingBox = major == 4 ? new R3DBox(br) : new R3DBox(Vector3.Zero, Vector3.Zero);
R3DSphere boundingSphere = major == 4 ? new R3DSphere(br) : R3DSphere.Infinite;
}
List <ushort> indices = new List <ushort>();
List <SimpleSkinVertex> vertices = new List <SimpleSkinVertex>();
for (int i = 0; i < indexCount; i++)
{
indices.Add(br.ReadUInt16());
}
for (int i = 0; i < vertexCount; i++)
{
vertices.Add(new SimpleSkinVertex(br, vertexType));
}
if (major == 0)
{
this.Submeshes.Add(new SimpleSkinSubmesh("Base", indices, vertices));
}
else
{
foreach (SimpleSkinSubmesh submesh in this.Submeshes)
{
List <ushort> submeshIndices = indices.GetRange((int)submesh._startIndex, (int)submesh._indexCount);
ushort minIndex = submeshIndices.Min();
submesh.Indices = submeshIndices.Select(x => x -= minIndex).ToList();
submesh.Vertices = vertices.GetRange((int)submesh._startVertex, (int)submesh._vertexCount);
}
}
}
}
