sendMsg function

bool sendMsg(int msgID, String msg)

Send a message with the given message ID and message payload. Returns a boolean that specifies if the command was successful.

Implementation

bool sendMsg(int msgID, String msg) {
  if (rconSck == null) {
    return false;
  }

  // Example login data: (u__ refers to the type of unsigned integer)
  // 0d00 0000 | dec0 ad0b | 0300 0000 | 3132 3300 00
  //  len u32  |  pid u32  | cmdid u32 | payload/password u8

  int payloadLen = 10 + msg.length;

  Uint32List headerAs32 = Uint32List(3);
  var headerBD = ByteData.view(headerAs32.buffer);
  headerBD.setUint32(0, payloadLen, Endian.little);
  headerBD.setUint32(4, requestID, Endian.little);
  headerBD.setUint32(8, msgID, Endian.little);
  Uint8List header = headerAs32.buffer.asUint8List();

  Uint8List passwordAsIntList = Uint8List.fromList(msg.codeUnits);

  Uint8List suffix = Uint8List(2);
  var suffixBD = ByteData.view(suffix.buffer);
  suffixBD.setUint8(0, 0);
  suffixBD.setUint8(1, 0);

  BytesBuilder bBuilder = BytesBuilder();
  bBuilder.add(header);
  bBuilder.add(passwordAsIntList);
  bBuilder.add(suffix);
  Uint8List payload = bBuilder.toBytes();

  rconSck!.add(payload);
  if (kDebugMode) {
    print("mc_rcon: sent payload ($payload) on socket");
  }

  return true;
}