/// <summary>
/// Creates a mesh set shape for serialising the mesh and its resource references.
/// </summary>
/// <param name="shapeComponent">The component to create a shape for.</param>
/// <returns>A shape instance suitable for configuring to generate serialisation messages.</returns>
protected override Shapes.Shape CreateSerialisationShape(ShapeComponent shapeComponent)
{
// Start by building the resource list.
int partCount = shapeComponent.transform.childCount;
ObjectAttributes attrs = new ObjectAttributes();
Shapes.MeshSet meshSet = new Shapes.MeshSet(shapeComponent.ObjectID, shapeComponent.Category);
EncodeAttributes(ref attrs, shapeComponent.gameObject, shapeComponent);
meshSet.SetAttributes(attrs);
for (int i = 0; i < partCount; ++i)
{
// Write the mesh ID
ShapeComponent partSrc = shapeComponent.transform.GetChild(i).GetComponent <ShapeComponent>();
if (partSrc != null)
{
MeshResourcePlaceholder part = new MeshResourcePlaceholder(partSrc.ObjectID);
// Encode attributes into target format.
EncodeAttributes(ref attrs, partSrc.gameObject, partSrc);
// And convert to matrix.
meshSet.AddPart(part, attrs.GetTransform());
}
else
{
Log.Error("Failed to extract child {0} for mesh set {1}.", i, shapeComponent.name);
return(null);
}
}
return(meshSet);
}
/// <summary>
/// Read the contents of a create message for a <c>MeshSet</c>.
/// </summary>
/// <param name="packet">The buffer from which the reader reads.</param>
/// <param name="reader">Stream to read from</param>
/// <returns>True on success.</returns>
/// <remarks>
/// Reads additional data about the mesh parts contained in the mesh. All parts are represented
/// by a <see cref="PlaceholderMesh"/> as real mesh data cannot be resolved here.
/// </remarks>
public override bool ReadCreate(PacketBuffer packet, BinaryReader reader)
{
if (!_data.Read(reader))
{
return(false);
}
// Read part details.
// Note: we can only create placeholder meshes here for referencing resource IDs elsewhere.
int partCount = reader.ReadUInt16();
_parts.Clear();
if (partCount > 0)
{
uint meshId;
ObjectAttributes partAttributes = new ObjectAttributes();
for (int i = 0; i < partCount; ++i)
{
meshId = reader.ReadUInt32();
if (!partAttributes.Read(reader))
{
return(false);
}
_parts.Add(new Part
{
Resource = new PlaceholderMesh(meshId),
Transform = partAttributes.GetTransform(),
Colour = new Colour(partAttributes.Colour)
});
}
}
return(true);
}
