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90 lines
3.7 KiB
Python
90 lines
3.7 KiB
Python
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#!/usr/bin/python3
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# -*- coding: utf-8 -*-
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#
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# module CImpulseDecoder
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#
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# Copyright (C) 2019 AleaJactaEst
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import logging
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import copy
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from tools import CActionFactory
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LOGGER='CImpulseDecoder'
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class CImpulseDecoder:
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'''
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see : khanat-opennel-code/code/ryzom/client/src/impulse_decoder.cpp
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'''
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def __init__(self, world):
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self.world = world
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self.reset()
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self._CActionFactory = CActionFactory.CActionFactory(world)
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def removeCAction(self, action):
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self._CActionFactory.RegisteredAction[action.Code].append(action)
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def decode(self, msgin, receivedPacket, receivedAck, nextSentPacket):
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'''
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khanat-opennel-code/code/ryzom/client/src/impulse_decoder.cpp:38 oid CImpulseDecoder::decode(CBitMemStream &inbox, TPacketNumber receivedPacket, TPacketNumber receivedAck, TPacketNumber nextSentPacket, vector<CLFECOMMON::CAction *> &actions)
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'''
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logging.getLogger(LOGGER).debug("*" * 80)
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logging.getLogger(LOGGER).debug("receivedPacket:%d receivedAck:%d nextSentPacket:%d" %(receivedPacket, receivedAck, nextSentPacket))
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actions = []
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for level in range(0, 3):
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logging.getLogger(LOGGER).debug("*" * 60)
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if level == 0:
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lAck = self._LastAck0
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channel = 0
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elif level == 1:
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lAck = self._LastAck1
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channel = receivedPacket & 1
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elif level == 2:
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lAck = self._LastAck2
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channel = receivedPacket & 3
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keep = True
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checkOnce = False
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num = 0
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logging.getLogger(LOGGER).debug("level:%d channel:%d lAck:%s" %(level, channel, ':'.join([str(x) for x in lAck])))
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# lastAck = lAck[channel]
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while True:
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logging.getLogger(LOGGER).debug("*" * 40)
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next = msgin.readBool('next:' + str(level) + ':' + str(channel))
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if not next:
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break
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if not checkOnce:
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checkOnce = True
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keep = receivedAck >= lAck[channel]
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logging.getLogger(LOGGER).debug("keep:%s [%d => %d]" % (str(keep), receivedAck, lAck[channel]))
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if keep:
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lAck[channel] = nextSentPacket
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logging.getLogger(LOGGER).debug("lAck:%s" % ':'.join([str(x) for x in lAck]))
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num += 1
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action = self._CActionFactory.unpack(msgin)
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if keep:
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logging.getLogger(LOGGER).debug("keep : %s" % str(action))
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actions.append(copy.copy(action))
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elif action:
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logging.getLogger(LOGGER).debug("append : %s" % str(action))
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self.removeCAction(copy.copy(action))
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logging.getLogger(LOGGER).debug('actions: ' +','.join( [ str(x) for x in actions] ) )
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logging.getLogger(LOGGER).debug("*" * 80)
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return actions
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def reset(self):
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self._LastAck0 = [-1]
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self._LastAck1 = [-1, -1]
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self._LastAck2 = [-1, -1, -1, -1]
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