clientbot/tools/CImpulseDecoder.py

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#!/usr/bin/python3
# -*- coding: utf-8 -*-
#
# module CImpulseDecoder
#
# Copyright (C) 2019 AleaJactaEst
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import logging
import copy
from tools import CActionFactory
LOGGER='CImpulseDecoder'
class CImpulseDecoder:
'''
see : khanat-opennel-code/code/ryzom/client/src/impulse_decoder.cpp
'''
def __init__(self, world):
self.world = world
self.reset()
self._CActionFactory = CActionFactory.CActionFactory(world)
def removeCAction(self, action):
self._CActionFactory.RegisteredAction[action.Code].append(action)
def decode(self, msgin, receivedPacket, receivedAck, nextSentPacket):
'''
khanat-opennel-code/code/ryzom/client/src/impulse_decoder.cpp:38 void CImpulseDecoder::decode(CBitMemStream &inbox, TPacketNumber receivedPacket, TPacketNumber receivedAck, TPacketNumber nextSentPacket, vector<CLFECOMMON::CAction *> &actions)
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'''
logging.getLogger(LOGGER).debug("*" * 80)
logging.getLogger(LOGGER).debug("receivedPacket:%d receivedAck:%d nextSentPacket:%d" %(receivedPacket, receivedAck, nextSentPacket))
actions = []
for level in range(0, 3):
logging.getLogger(LOGGER).debug("*" * 60)
if level == 0:
lAck = self._LastAck0
channel = 0
elif level == 1:
lAck = self._LastAck1
channel = receivedPacket & 1
elif level == 2:
lAck = self._LastAck2
channel = receivedPacket & 3
keep = True
checkOnce = False
num = 0
logging.getLogger(LOGGER).debug("level:%d channel:%d lAck:%s" %(level, channel, ':'.join([str(x) for x in lAck])))
# lastAck = lAck[channel]
while True:
logging.getLogger(LOGGER).debug("*" * 40)
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logging.getLogger(LOGGER).debug("[decoded] %s" % msgin.showAllData())
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next = msgin.readBool('next:' + str(level) + ':' + str(channel))
if not next:
break
if not checkOnce:
checkOnce = True
keep = receivedAck >= lAck[channel]
logging.getLogger(LOGGER).debug("keep:%s [%d => %d]" % (str(keep), receivedAck, lAck[channel]))
if keep:
lAck[channel] = nextSentPacket
logging.getLogger(LOGGER).debug("lAck:%s" % ':'.join([str(x) for x in lAck]))
num += 1
action = self._CActionFactory.unpack(msgin)
if keep:
logging.getLogger(LOGGER).debug("keep : %s" % str(action))
actions.append(copy.copy(action))
elif action:
logging.getLogger(LOGGER).debug("append : %s" % str(action))
self.removeCAction(copy.copy(action))
logging.getLogger(LOGGER).debug('actions: ' +','.join( [ str(x) for x in actions] ) )
logging.getLogger(LOGGER).debug("*" * 80)
return actions
def reset(self):
self._LastAck0 = [-1]
self._LastAck1 = [-1, -1]
self._LastAck2 = [-1, -1, -1, -1]