/// <summary>
/// Handle create messages.
/// </summary>
/// <param name="msg"></param>
/// <param name="packet"></param>
/// <param name="reader"></param>
/// <returns></returns>
protected virtual Error HandleMessage(CreateMessage msg, PacketBuffer packet, BinaryReader reader)
{
TextEntry text = new TextEntry();
text.ID = msg.ObjectID;
text.ObjectFlags = msg.Flags;
text.Category = msg.Category;
text.Position = new Vector3(msg.Attributes.X, msg.Attributes.Y, msg.Attributes.Z);
text.Colour = ShapeComponent.ConvertColour(msg.Attributes.Colour);
text.Active = CategoryCheck(text.Category);
// Read the text.
int textLength = reader.ReadUInt16();
if (textLength > 0)
{
byte[] textBytes = reader.ReadBytes(textLength);
text.Text = System.Text.Encoding.UTF8.GetString(textBytes);
}
if (msg.ObjectID == 0)
{
TransientText.Add(text);
}
else
{
PersistentText.Add(text);
}
return(new Error());
}
/// <summary>
/// Start the frame by flushing transient objects.
/// </summary>
/// <param name="frameNumber">A monotonic frame number.</param>
/// <param name="maintainTransient">True to disable transient flush.</param>
public override void BeginFrame(uint frameNumber, bool maintainTransient)
{
if (!maintainTransient)
{
TransientText.Clear();
}
}
/// <summary>
/// Handle create messages.
/// </summary>
/// <param name="msg"></param>
/// <param name="packet"></param>
/// <param name="reader"></param>
/// <returns></returns>
protected virtual Error HandleMessage(CreateMessage msg, PacketBuffer packet, BinaryReader reader)
{
TextEntry text = new TextEntry();
text.ID = msg.ObjectID;
text.ObjectFlags = msg.Flags;
text.Category = msg.Category;
text.Position = new Vector3(msg.Attributes.X, msg.Attributes.Y, msg.Attributes.Z);
text.Colour = Maths.ColourExt.ToUnity32(new Maths.Colour(msg.Attributes.Colour));
// Read the text.
int textLength = reader.ReadUInt16();
if (textLength > 0)
{
byte[] textBytes = reader.ReadBytes(textLength);
text.Text = System.Text.Encoding.UTF8.GetString(textBytes);
}
if (msg.ObjectID == 0)
{
TransientText.Add(text);
}
else
{
if (PersistentText.ContainsEntry(text.ID))
{
// Object ID already present. Check for replace flag.
if ((msg.Flags & (ushort)ObjectFlag.Replace) == 0)
{
// Not replace flag => error.
return(new Error(ErrorCode.DuplicateShape, msg.ObjectID));
}
// Replace.
PersistentText.Remove(text.ID);
}
PersistentText.Add(text);
}
return(new Error());
}
/// <summary>
/// Reset, clearing all text objects.
/// </summary>
public override void Reset()
{
PersistentText.Clear();
TransientText.Clear();
}
/// <summary>
/// Handle category activation changes.
/// </summary>
/// <param name="categoryId"></param>
/// <param name="active"></param>
public override void OnCategoryChange(ushort categoryId, bool active)
{
PersistentText.CategoryActive(categoryId, active);
TransientText.CategoryActive(categoryId, active);
}