private void Save(byte[] r, string type)
{
_multiStatus = null;
ReceivedPackets[type] = r;
}
// TODO: Currently we only support exact order, without exclusion: Info, Rules, Player.
public byte[] Tick(byte[] response)
{
switch (State)
{
case EpStateState.Start:
return(TransitionToInfoChallenge());
case EpStateState.InfoChallenge: {
_multiStatus = new MultiStatus();
var r = _multiStatus.ProcessPacketHeader(response);
return(r == null?TransitionToReceivingInfoState() : HandleInfoEnd(r));
}
case EpStateState.ReceivingInfo: {
var r = _multiStatus.ProcessPacketHeader(response);
return(r == null
? null
: HandleInfoEnd(r));
}
case EpStateState.RulesChallenge: {
_multiStatus = new MultiStatus();
switch (response[4])
{
case ChallengeResponse: //challenge
return(TransitionToReceivingRulesState(response));
case RulesResponse: //no challenge needed info
return(HandleRulesEnd(response));
default:
throw new Exception(string.Format("Wrong packet tag: 0x{0:X} Expected: 0x41 or 0x45.", response[4]));
}
}
case EpStateState.ReceivingRules: {
var r = _multiStatus.ProcessPacketHeader(response);
return(r != null
? HandleRulesEnd(r)
: null);
}
case EpStateState.PlayerChallenge: {
_multiStatus = new MultiStatus();
switch (response[4])
{
case ChallengeResponse: //challenge
return(TransitionToReceivingPlayers(response));
case PlayerResponse: //no challenge needed info
return(HandlePlayersEnd(response));
default:
throw new Exception(string.Format("Wrong packet tag: 0x{0:X} Expected: 0x41 or 0x45.", response[4]));
}
}
case EpStateState.ReceivingPlayers: {
var r = _multiStatus.ProcessPacketHeader(response);
return(r != null?HandlePlayersEnd(r) : null);
}
default: {
throw new Exception("Is in invalid state");
}
}
}