public override byte[] toBytes()
{
mCmdID = 2;
mKeyID = 1;
mValueLength = sizeof(byte);
int payloadLen = sizeof(byte) + sizeof(byte) + sizeof(byte) + mValueLength;
byte[] payload = new byte[payloadLen];
int index = 0;
BinaryUtility.writeByte(payload, ref index, mCmdID);
BinaryUtility.writeByte(payload, ref index, mKeyID);
BinaryUtility.writeByte(payload, ref index, mValueLength);
BinaryUtility.writeByte(payload, ref index, mFriction);
mHeader = new PacketHeader(GameDefine.REPORT_OUT);
mHeader.mPayloadLength = (ushort)payloadLen;
mHeader.mCRC16 = BinaryUtility.crc16(0xFF, payload, payloadLen);
byte[] headerData = mHeader.toBytes();
byte[] packetData = new byte[payload.Length + headerData.Length];
BinaryUtility.memcpy(packetData, headerData, 0);
BinaryUtility.memcpy(packetData, payload, headerData.Length);
return(packetData);
}
public PARSE_RESULT parseData(byte[] data, int count)
{
// 长度不够包头时,数据不足
if (count < mHeaderLength)
{
return(PARSE_RESULT.PR_NOT_ENOUGH);
}
// 确保一些固定数值是正确的
if (data[0] != mReportID || data[1] != mMagicByte || data[2] != mVersion || data[mHeaderLength - 1] != mSeqID)
{
UnityUtility.logInfo("data : " + BinaryUtility.bytesToHEXString(data, true, true, count));
UnityUtility.logInfo("数据错误");
return(PARSE_RESULT.PR_ERROR);
}
int offset = sizeof(byte) + sizeof(byte) + sizeof(byte);
ushort payloadLength = (ushort)BinaryUtility.readShort(data, ref offset, true);
// 长度不够记录的数据长度,数据不足
if (payloadLength > count - mHeaderLength)
{
return(PARSE_RESULT.PR_NOT_ENOUGH);
}
ushort crc = (ushort)BinaryUtility.readShort(data, ref offset, true);
// 校验失败,数据错误
ushort dataCRC16 = BinaryUtility.crc16(0xFF, data, payloadLength, mHeaderLength);
if (crc != dataCRC16)
{
UnityUtility.logInfo("校验失败");
return(PARSE_RESULT.PR_ERROR);
}
// 只有解析成功时,才保存数据
mPayloadLength = payloadLength;
mCRC16 = crc;
return(PARSE_RESULT.PR_SUCCESS);
}