/// <summary>
/// Reads a <c>UpdatePosition</c> type PositionUpdate message.
/// </summary>
/// <param name="buffer">The byte array containing data.</param>
/// <param name="length">The length of the message.</param>
/// <returns>The PositionUpdate.</returns>
public static PositionUpdate ReadUpdatePosition(byte[] buffer, int length)
{
if (buffer == null)
{
throw new ArgumentNullException("buffer");
}
if (buffer.Length < length)
{
throw new ArgumentOutOfRangeException("buffer", buffer, "The buffer is not long enough to contain a message of the specified length.");
}
if (length < 16)
{
return(null);
}
float x = MessageProcessor.ReadSingle(buffer, 0);
float y = MessageProcessor.ReadSingle(buffer, 4);
Vector2 coordinate = new Vector2(x, y);
float rotation = MessageProcessor.ReadSingle(buffer, 8);
int id = MessageProcessor.ReadInt32(buffer, 12);
PositionUpdate update = new PositionUpdate(UpdateType.UpdatePosition, coordinate, rotation, id);
if (id > 200 || id < 0)
{
throw new ArgumentOutOfRangeException("Received message is not sane: " + update);
}
return(update);
}
/// <summary>
/// Determines whether the specified <see cref="System.Object"/> is equal to the
/// current <see cref="Network.PositionUpdate"/>.
/// </summary>
/// <param name="obj">
/// The <see cref="System.Object"/> to compare with the current
/// <see cref="Network.PositionUpdate"/>.
/// </param>
/// <returns>
/// <c>true</c> if the specified <see cref="System.Object"/> is equal to the current
/// <see cref="Network.PositionUpdate"/>; otherwise, <c>false</c>.
/// </returns>
public override bool Equals(object obj)
{
if (obj == null || obj.GetType() != this.GetType())
{
return(false);
}
PositionUpdate that = obj as PositionUpdate;
return(this.Type == that.Type &&
this.Coordinate.x == that.Coordinate.x &&
this.Coordinate.y == that.Coordinate.y &&
this.Id == that.Id);
}