deserializePayload method

@override int deserializePayload(AnnounceBuilder builder, ByteData byteData, Endian endianness, int offset,)

Call to deserialize only the payload, no header. The Builder is to allow passing the message to build into. returns a int with a serialized size

Implementation

@override
int deserializePayload(imc.AnnounceBuilder builder, ByteData byteData,
    Endian endianness, int offset) {
  var byteOffset = offset;

  // field sysName
  var sysNameSSize = byteData.getUint16(byteOffset, endianness);
  byteOffset += 2;
  var sysNameDData = List.filled(sysNameSSize, 0);
  for (var i = 0; i < sysNameSSize; i++) {
    sysNameDData[i] = byteData.getUint8(byteOffset++);
  }
  var sysNameDecoded = utf8.decode(sysNameDData);
  builder.sysName = sysNameDecoded;
  // field sysType
  builder.sysType = imc.SystemTypeEnum(byteData.getUint8(byteOffset));
  byteOffset += 1;
  // field owner
  builder.owner = byteData.getUint16(byteOffset, endianness);
  byteOffset += 2;
  // field lat
  builder.lat = byteData.getFloat64(byteOffset, endianness);
  byteOffset += 8;
  // field lon
  builder.lon = byteData.getFloat64(byteOffset, endianness);
  byteOffset += 8;
  // field height
  builder.height = byteData.getFloat32(byteOffset, endianness);
  byteOffset += 4;
  // field services
  var servicesSSize = byteData.getUint16(byteOffset, endianness);
  byteOffset += 2;
  var servicesDData = List.filled(servicesSSize, 0);
  for (var i = 0; i < servicesSSize; i++) {
    servicesDData[i] = byteData.getUint8(byteOffset++);
  }
  var servicesDecoded = utf8.decode(servicesDData);
  builder.services = servicesDecoded;

  return byteOffset - offset;
}