DMMessage.cs 1.2 KB

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  1. using System;
  2. using System.Text;
  3. namespace InABox.DigitalMatter
  4. {
  5. public abstract class DMMessage : DMObject
  6. {
  7. private ushort headerlength;
  8. public abstract byte Type { get; }
  9. public ushort CheckSum { get; set; }
  10. protected override void BeforeEncode(IDMWriteBuffer buffer)
  11. {
  12. base.BeforeEncode(buffer);
  13. buffer.AddByte(0x02);
  14. buffer.AddByte(0x55);
  15. headerlength = buffer.AddByte(Type);
  16. }
  17. protected override void AfterEncode(IDMWriteBuffer buffer)
  18. {
  19. base.AfterEncode(buffer);
  20. var payloadlength = (ushort)(buffer.BufferSize - headerlength);
  21. buffer.InsertUInt16(headerlength, payloadlength);
  22. }
  23. protected override void BeforeDecode(IDMReadBuffer buffer)
  24. {
  25. base.BeforeDecode(buffer);
  26. var id1 = buffer.TakeByte();
  27. var id2 = buffer.TakeByte();
  28. var type = buffer.TakeByte();
  29. CheckSum = buffer.TakeUInt16();
  30. }
  31. public virtual byte[] Dump()
  32. {
  33. return Encoding.UTF8.GetBytes($"Type: {BitConverter.ToString(new[] { Type })}");
  34. }
  35. }
  36. }