khanat-code-old/code/ryzom/client/src/impulse_decoder.cpp

102 lines
2.9 KiB
C++

// Ryzom - MMORPG Framework <http://dev.ryzom.com/projects/ryzom/>
// Copyright (C) 2010 Winch Gate Property Limited
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
#include "stdpch.h"
#include "impulse_decoder.h"
#include "game_share/action_factory.h"
using namespace std;
using namespace NLMISC;
using namespace CLFECOMMON;
/*
* Constructor
*/
CImpulseDecoder::CImpulseDecoder()
{
reset();
}
void CImpulseDecoder::decode(CBitMemStream &inbox, TPacketNumber receivedPacket, TPacketNumber receivedAck, TPacketNumber nextSentPacket, vector<CLFECOMMON::CAction *> &actions)
{
uint level;
for (level=0; level<3; ++level)
{
TPacketNumber *lAck;
uint channel;
switch (level)
{
case 0: lAck = _LastAck0; channel = 0; break;
case 1: lAck = _LastAck1; channel = receivedPacket&1; break;
case 2: lAck = _LastAck2; channel = receivedPacket&3; break;
}
bool keep = true;
bool checkOnce = false;
uint num = 0;
TPacketNumber lastAck = lAck[channel];
for(;;)
{
bool next;
inbox.serial(next);
if (!next)
break;
if (!checkOnce)
{
checkOnce = true;
keep = (receivedAck >= lAck[channel]);
if (keep)
lAck[channel] = nextSentPacket;
}
++num;
CAction *action = CActionFactory::getInstance()->unpack(inbox, false);
if (keep)
{
actions.push_back(action);
nlinfo("CLIMPD: received new impulsion %d (len=%u) at level %d (channel %d)", action->Code, CActionFactory::getInstance()->size(action), level, channel, num, (keep) ? "" : " (discarded)", lastAck, nextSentPacket);
}
else
{
nlinfo("CLIMPD: discarded action %d (len=%u) at level %d (channel %d)", action->Code, CActionFactory::getInstance()->size(action), level, channel, num, (keep) ? "" : " (discarded)", lastAck, nextSentPacket);
CActionFactory::getInstance()->remove(action);
}
}
if (checkOnce)
nldebug("CLIMPD: at level %d (channel %d), %d actions%s (ReceivedAck=%d/lastAck=%d/nextSentPacket=%d)", level, channel, num, (keep) ? "" : " (discarded)", receivedAck, lastAck, nextSentPacket);
}
}
void CImpulseDecoder::reset()
{
uint i;
for (i=0; i<1; ++i) _LastAck0[i] = -1;
for (i=0; i<2; ++i) _LastAck1[i] = -1;
for (i=0; i<4; ++i) _LastAck2[i] = -1;
}