/// <summary>
/// Read <see cref="DataMessage"/> and payload generated by <see cref="WriteData(PacketBuffer, ref uint)"/>.
/// </summary>
/// <param name="reader">Stream to read from</param>
/// <returns>True on success.</returns>
public override bool ReadData(BinaryReader reader)
{
DataMessage msg = new DataMessage();
if (!msg.Read(reader))
{
return(false);
}
if (ID != msg.ObjectID)
{
return(false);
}
ArrayComponentAdaptor <Vector3> normalsAdaptor = new ArrayComponentAdaptor <Vector3>(_normals);
ColoursAdaptor coloursAdaptor = new ColoursAdaptor(_colours);
int readComponent = ReadDataComponent(reader,
new ArrayComponentAdaptor <Vector3>(_vertices),
new ArrayComponentAdaptor <int>(_indices),
normalsAdaptor, coloursAdaptor);
if (readComponent == -1)
{
return(false);
}
// Normals and colours may have been (re)allocated. Store the results.
switch (readComponent & ~(int)(SendDataType.End | SendDataType.ExpectEnd))
{
case (int)SendDataType.Normals:
case (int)SendDataType.UniformNormal:
// Normals array may have been (re)allocated.
_normals = normalsAdaptor.Array;
break;
case (int)SendDataType.Colours:
// Colours array may have been (re)allocated.
_colours = coloursAdaptor.Array;
break;
}
// Check for finalisation.
// Complete if ((readComponent & (int)SendDataType.End) != 0)
return(true);
}
/// <summary>
/// Overridden to handle triangle data in the <paramref name="msg"/>
/// </summary>
/// <param name="msg"></param>
/// <param name="packet"></param>
/// <param name="reader"></param>
/// <returns></returns>
protected override Error HandleMessage(DataMessage msg, PacketBuffer packet, BinaryReader reader)
{
GameObject obj = null;
if (msg.ObjectID == 0)
{
// Transient object.
obj = _transientCache.LastObject;
if (!obj)
{
return(new Error(ErrorCode.InvalidObjectID, 0));
}
}
else
{
obj = FindObject(msg.ObjectID);
if (!obj)
{
// Object already exists.
return(new Error(ErrorCode.InvalidObjectID, msg.ObjectID));
}
}
// Naive support for multiple packets. Assume:
// - In order.
// - Under the overall Unity mesh indexing limit.
MeshDataComponent meshData = obj.GetComponent <MeshDataComponent>();
Vector3ComponentAdaptor normalsAdaptor = new Vector3ComponentAdaptor(meshData.Normals);
ColoursAdaptor coloursAdaptor = new ColoursAdaptor(meshData.Colours);
int readComponent = MeshShape.ReadDataComponent(reader,
new Vector3ComponentAdaptor(meshData.Vertices),
new MeshShape.ArrayComponentAdaptor <int>(meshData.Indices),
normalsAdaptor,
coloursAdaptor
);
if (readComponent == -1)
{
return(new Error(ErrorCode.MalformedMessage, DataMessage.MessageID));
}
// Normals and colours may have been (re)allocated. Store the results.
switch (readComponent & ~(int)(MeshShape.SendDataType.End | MeshShape.SendDataType.ExpectEnd))
{
case (int)MeshShape.SendDataType.Normals:
case (int)MeshShape.SendDataType.UniformNormal:
// Normals array may have been (re)allocated.
meshData.Normals = normalsAdaptor.Array;
break;
case (int)MeshShape.SendDataType.Colours:
// Colours array may have been (re)allocated.
meshData.Colours = coloursAdaptor.Array;
break;
}
// Check for finalisation.
if ((readComponent & (int)MeshShape.SendDataType.End) != 0)
{
_awaitingFinalisation.Add(meshData);
}
return(new Error());
}
