/// <summary>
/// Serialise messages to generate <paramref name="mesh"/>.
/// </summary>
/// <param name="mesh">The mesh of interest.</param>
/// <param name="packet">Packet buffer to compose messages in</param>
/// <param name="writer">Writer to export completed message packets to.</param>
/// <returns></returns>
/// <remarks>
/// Writes:
/// <list type="bullet">
/// <item><see cref="MeshCreateMessage"/></item>
/// <item><see cref="MeshComponentMessage"/> for each component type from
/// <see cref="MeshMessageType"/></item>
/// <item><see cref="MeshFinaliseMessage"/> only when <paramref name="mesh"/> is already
/// finalised.</item>
/// </list>
/// </remarks>
protected Error Serialise(MeshDetails mesh, PacketBuffer packet, BinaryWriter writer)
{
// First write a create message.
MeshCreateMessage msg = new MeshCreateMessage();
packet.Reset((ushort)RoutingID, (ushort)MeshCreateMessage.MessageID);
msg.MeshID = mesh.ID;
msg.VertexCount = (uint)mesh.Builder.VertexCount;
msg.IndexCount = (uint)(mesh.Builder.ExplicitIndices ? mesh.Builder.IndexCount : 0);
msg.DrawType = mesh.DrawType;
msg.Attributes.X = mesh.LocalPosition.x;
msg.Attributes.Y = mesh.LocalPosition.y;
msg.Attributes.Z = mesh.LocalPosition.z;
msg.Attributes.RotationX = mesh.LocalRotation.x;
msg.Attributes.RotationY = mesh.LocalRotation.y;
msg.Attributes.RotationZ = mesh.LocalRotation.z;
msg.Attributes.RotationW = mesh.LocalRotation.w;
msg.Attributes.ScaleX = mesh.LocalScale.x;
msg.Attributes.ScaleY = mesh.LocalScale.y;
msg.Attributes.ScaleZ = mesh.LocalScale.z;
msg.Attributes.Colour = ShapeComponent.ConvertColour(mesh.Tint);
msg.Write(packet);
if (!packet.FinalisePacket())
{
return(new Error(ErrorCode.SerialisationFailure));
}
packet.ExportTo(writer);
// Now use the MeshResource methods to complete serialisation.
MeshSerialiser serialiser = new MeshSerialiser(mesh);
TransferProgress prog = new TransferProgress();
prog.Reset();
while (!prog.Complete)
{
serialiser.Transfer(packet, 0, ref prog);
if (!packet.FinalisePacket())
{
return(new Error(ErrorCode.SerialisationFailure));
}
packet.ExportTo(writer);
}
return(new Error());
}
/// <summary>
/// Send initial mesh creation message.
/// </summary>
/// <param name="packet">Packet to populate with the create message.</param>
/// <returns>Zero on success.</returns>
public int Create(PacketBuffer packet)
{
MeshCreateMessage msg = new MeshCreateMessage();
msg.Attributes.SetFromTransform(Transform);
msg.Attributes.Colour = Tint;
msg.MeshID = ID;
msg.VertexCount = VertexCount();
msg.IndexCount = IndexCount();
msg.DrawType = DrawType;
packet.Reset((ushort)RoutingID.Mesh, MeshCreateMessage.MessageID);
msg.Write(packet);
return(0);
}
