mirror of
https://github.com/Sneed-Group/Poodletooth-iLand
synced 2024-12-26 05:02:31 -06:00
523 lines
20 KiB
Python
523 lines
20 KiB
Python
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"""DistributedObject module: contains the DistributedObject class"""
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from pandac.PandaModules import *
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from direct.directnotify.DirectNotifyGlobal import directNotify
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from direct.distributed.DistributedObjectBase import DistributedObjectBase
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from direct.showbase.PythonUtil import StackTrace
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#from PyDatagram import PyDatagram
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#from PyDatagramIterator import PyDatagramIterator
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# Values for DistributedObject.activeState
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ESNew = 1
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ESDeleted = 2
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ESDisabling = 3
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ESDisabled = 4 # values here and lower are considered "disabled"
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ESGenerating = 5 # values here and greater are considered "generated"
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ESGenerated = 6
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# update this table if the values above change
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ESNum2Str = {
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ESNew: 'ESNew',
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ESDeleted: 'ESDeleted',
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ESDisabling: 'ESDisabling',
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ESDisabled: 'ESDisabled',
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ESGenerating: 'ESGenerating',
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ESGenerated: 'ESGenerated',
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}
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class DistributedObject(DistributedObjectBase):
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"""
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The Distributed Object class is the base class for all network based
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(i.e. distributed) objects. These will usually (always?) have a
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dclass entry in a *.dc file.
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"""
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notify = directNotify.newCategory("DistributedObject")
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# A few objects will set neverDisable to 1... Examples are
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# localToon, and anything that lives in the UberZone. This
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# keeps them from being disabled when you change zones,
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# even to the quiet zone.
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neverDisable = 0
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def __init__(self, cr):
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assert self.notify.debugStateCall(self)
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try:
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self.DistributedObject_initialized
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except:
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self.DistributedObject_initialized = 1
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DistributedObjectBase.__init__(self, cr)
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# Most DistributedObjects are simple and require no real
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# effort to load. Some, particularly actors, may take
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# some significant time to load; these we can optimize by
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# caching them when they go away instead of necessarily
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# deleting them. The object should set cacheable to 1 if
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# it needs to be optimized in this way.
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self.setCacheable(0)
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# this is for Toontown only, see toontown.distributed.DelayDeletable
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self._token2delayDeleteName = {}
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self._delayDeleteForceAllow = False
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self._delayDeleted = 0
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# Keep track of our state as a distributed object. This
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# is only trustworthy if the inheriting class properly
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# calls up the chain for disable() and generate().
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self.activeState = ESNew
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# These are used by getCallbackContext() and doCallbackContext().
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self.__nextContext = 0
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self.__callbacks = {}
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# This is used by doneBarrier().
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self.__barrierContext = None
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if __debug__:
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def status(self, indent=0):
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"""
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print out "doId(parentId, zoneId) className
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and conditionally show generated, disabled, neverDisable,
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or cachable"
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"""
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spaces=' '*(indent+2)
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try:
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print "%s%s:"%(
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' '*indent, self.__class__.__name__)
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print "%sfrom DistributedObject doId:%s, parent:%s, zone:%s"%(
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spaces,
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self.doId, self.parentId, self.zoneId),
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flags=[]
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if self.activeState == ESGenerated:
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flags.append("generated")
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if self.activeState < ESGenerating:
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flags.append("disabled")
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if self.neverDisable:
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flags.append("neverDisable")
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if self.cacheable:
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flags.append("cacheable")
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if len(flags):
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print "(%s)"%(" ".join(flags),),
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print
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except Exception, e: print "%serror printing status"%(spaces,), e
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def getAutoInterests(self):
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# returns the sub-zones under this object that are automatically
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# opened for us by the server.
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# have we already cached it?
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def _getAutoInterests(cls):
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# returns set of auto-interests for this class and all derived
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# have we already computed this class's autoInterests?
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if 'autoInterests' in cls.__dict__:
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autoInterests = cls.autoInterests
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else:
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autoInterests = set()
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# grab autoInterests from base classes
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for base in cls.__bases__:
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autoInterests.update(_getAutoInterests(base))
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# grab autoInterests from this class
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if cls.__name__ in self.cr.dclassesByName:
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dclass = self.cr.dclassesByName[cls.__name__]
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field = dclass.getFieldByName('AutoInterest')
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if field is not None:
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p = DCPacker()
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p.setUnpackData(field.getDefaultValue())
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len = p.rawUnpackUint16()/4
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for i in xrange(len):
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zone = int(p.rawUnpackUint32())
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autoInterests.add(zone)
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autoInterests.update(autoInterests)
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cls.autoInterests = autoInterests
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return set(autoInterests)
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autoInterests = _getAutoInterests(self.__class__)
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# if the server starts supporting multiple auto-interest per class, this check
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# should be removed
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if len(autoInterests) > 1:
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self.notify.error(
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'only one auto-interest allowed per DC class, %s has %s autoInterests (%s)' %
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(self.dclass.getName(), len(autoInterests), list(autoInterests)))
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_getAutoInterests = None
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return list(autoInterests)
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def setNeverDisable(self, bool):
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assert bool == 1 or bool == 0
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self.neverDisable = bool
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def getNeverDisable(self):
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return self.neverDisable
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def _retrieveCachedData(self):
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# once we know our doId, grab any data that might be stored in the data cache
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# from the last time we were on the client
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if self.cr.doDataCache.hasCachedData(self.doId):
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self._cachedData = self.cr.doDataCache.popCachedData(self.doId)
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def setCachedData(self, name, data):
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assert type(name) == type('')
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# ownership of the data passes to the repository data cache
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self.cr.doDataCache.setCachedData(self.doId, name, data)
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def hasCachedData(self, name):
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assert type(name) == type('')
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if not hasattr(self, '_cachedData'):
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return False
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return name in self._cachedData
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def getCachedData(self, name):
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assert type(name) == type('')
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# ownership of the data passes to the caller of this method
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data = self._cachedData[name]
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del self._cachedData[name]
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return data
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def flushCachedData(self, name):
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assert type(name) == type('')
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# call this to throw out cached data from a previous instantiation
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self._cachedData[name].flush()
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def setCacheable(self, bool):
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assert bool == 1 or bool == 0
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self.cacheable = bool
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def getCacheable(self):
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return self.cacheable
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def deleteOrDelay(self):
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if len(self._token2delayDeleteName) > 0:
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if not self._delayDeleted:
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self._delayDeleted = 1
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# Object is delayDeleted. Clean up DistributedObject state,
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# remove from repository tables, so that we won't crash if
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# another instance of the same object gets generated while
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# this instance is still delayDeleted.
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messenger.send(self.getDelayDeleteEvent())
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if len(self._token2delayDeleteName) > 0:
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self.delayDelete()
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if len(self._token2delayDeleteName) > 0:
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self._deactivateDO()
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else:
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self.disableAnnounceAndDelete()
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def disableAnnounceAndDelete(self):
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self.disableAndAnnounce()
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self.delete()
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self._destroyDO()
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def getDelayDeleteCount(self):
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return len(self._token2delayDeleteName)
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def getDelayDeleteEvent(self):
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return self.uniqueName("delayDelete")
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def getDisableEvent(self):
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return self.uniqueName("disable")
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def disableAndAnnounce(self):
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"""
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Inheritors should *not* redefine this function.
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"""
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# We must send the disable announce message *before* we
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# actually disable the object. That way, the various cleanup
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# tasks can run first and take care of restoring the object to
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# a normal, nondisabled state; and *then* the disable function
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# can properly disable it (for instance, by parenting it to
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# hidden).
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if self.activeState != ESDisabled:
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self.activeState = ESDisabling
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messenger.send(self.getDisableEvent())
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self.disable()
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self.activeState = ESDisabled
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if not self._delayDeleted:
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# if the object is DelayDeleted, _deactivateDO has
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# already been called
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self._deactivateDO()
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def announceGenerate(self):
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"""
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Sends a message to the world after the object has been
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generated and all of its required fields filled in.
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"""
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assert self.notify.debug('announceGenerate(): %s' % (self.doId))
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def _deactivateDO(self):
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# after this is called, the object is no longer an active DistributedObject
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# and it may be placed in the cache
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if not self.cr:
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# we are going to crash, output the destroyDo stacktrace
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self.notify.warning('self.cr is none in _deactivateDO %d' % self.doId)
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if hasattr(self, 'destroyDoStackTrace'):
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print self.destroyDoStackTrace
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self.__callbacks = {}
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self.cr.closeAutoInterests(self)
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self.setLocation(0,0)
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self.cr.deleteObjectLocation(self, self.parentId, self.zoneId)
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def _destroyDO(self):
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# after this is called, the object is no longer a DistributedObject
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# but may still be used as a DelayDeleted object
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self.destroyDoStackTrace = StackTrace()
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# check for leftover cached data that was not retrieved or flushed by this object
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# this will catch typos in the data name in calls to get/setCachedData
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if hasattr(self, '_cachedData'):
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for name, cachedData in self._cachedData.iteritems():
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self.notify.warning('flushing unretrieved cached data: %s' % name)
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cachedData.flush()
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del self._cachedData
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self.cr = None
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self.dclass = None
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def disable(self):
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"""
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Inheritors should redefine this to take appropriate action on disable
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"""
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assert self.notify.debug('disable(): %s' % (self.doId))
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pass
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def isDisabled(self):
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"""
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Returns true if the object has been disabled and/or deleted,
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or if it is brand new and hasn't yet been generated.
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"""
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return (self.activeState < ESGenerating)
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def isGenerated(self):
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"""
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Returns true if the object has been fully generated by now,
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and not yet disabled.
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"""
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assert self.notify.debugStateCall(self)
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return (self.activeState == ESGenerated)
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def delete(self):
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"""
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Inheritors should redefine this to take appropriate action on delete
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"""
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assert self.notify.debug('delete(): %s' % (self.doId))
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try:
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self.DistributedObject_deleted
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except:
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self.DistributedObject_deleted = 1
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def generate(self):
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"""
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Inheritors should redefine this to take appropriate action on generate
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"""
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assert self.notify.debugStateCall(self)
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self.activeState = ESGenerating
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# this has already been set at this point
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#self.cr.storeObjectLocation(self, self.parentId, self.zoneId)
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# semi-hack: we seem to be calling generate() more than once for objects that multiply-inherit
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if not hasattr(self, '_autoInterestHandle'):
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self.cr.openAutoInterests(self)
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def generateInit(self):
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"""
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This method is called when the DistributedObject is first introduced
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to the world... Not when it is pulled from the cache.
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"""
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self.activeState = ESGenerating
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def getDoId(self):
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"""
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Return the distributed object id
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"""
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return self.doId
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#This message was moved out of announce generate
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#to avoid ordering issues.
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def postGenerateMessage(self):
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if self.activeState != ESGenerated:
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self.activeState = ESGenerated
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messenger.send(self.uniqueName("generate"), [self])
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def updateRequiredFields(self, dclass, di):
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dclass.receiveUpdateBroadcastRequired(self, di)
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self.announceGenerate()
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self.postGenerateMessage()
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def updateAllRequiredFields(self, dclass, di):
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dclass.receiveUpdateAllRequired(self, di)
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self.announceGenerate()
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self.postGenerateMessage()
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def updateRequiredOtherFields(self, dclass, di):
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# First, update the required fields
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dclass.receiveUpdateBroadcastRequired(self, di)
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# Announce generate after updating all the required fields,
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# but before we update the non-required fields.
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self.announceGenerate()
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self.postGenerateMessage()
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dclass.receiveUpdateOther(self, di)
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def sendUpdate(self, fieldName, args = [], sendToId = None):
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if self.cr:
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dg = self.dclass.clientFormatUpdate(
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fieldName, sendToId or self.doId, args)
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self.cr.send(dg)
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else:
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assert self.notify.error("sendUpdate failed, because self.cr is not set")
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def sendDisableMsg(self):
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self.cr.sendDisableMsg(self.doId)
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def sendDeleteMsg(self):
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self.cr.sendDeleteMsg(self.doId)
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def taskName(self, taskString):
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return ("%s-%s" % (taskString, self.doId))
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def uniqueName(self, idString):
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return ("%s-%s" % (idString, self.doId))
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def getCallbackContext(self, callback, extraArgs = []):
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# Some objects implement a back-and-forth handshake operation
|
||
|
|
# with the AI via an arbitrary context number. This method
|
||
|
|
# (coupled with doCallbackContext(), below) maps a Python
|
||
|
|
# callback onto that context number so that client code may
|
||
|
|
# easily call the method and wait for a callback, rather than
|
||
|
|
# having to negotiate context numbers.
|
||
|
|
|
||
|
|
# This method generates a new context number and stores the
|
||
|
|
# callback so that it may later be called when the response is
|
||
|
|
# returned.
|
||
|
|
|
||
|
|
# This is intended to be called within derivations of
|
||
|
|
# DistributedObject, not directly by other objects.
|
||
|
|
|
||
|
|
context = self.__nextContext
|
||
|
|
self.__callbacks[context] = (callback, extraArgs)
|
||
|
|
# We assume the context number is passed as a uint16.
|
||
|
|
self.__nextContext = (self.__nextContext + 1) & 0xffff
|
||
|
|
|
||
|
|
return context
|
||
|
|
|
||
|
|
def getCurrentContexts(self):
|
||
|
|
# Returns a list of the currently outstanding contexts created
|
||
|
|
# by getCallbackContext().
|
||
|
|
return self.__callbacks.keys()
|
||
|
|
|
||
|
|
def getCallback(self, context):
|
||
|
|
# Returns the callback that was passed in to the previous
|
||
|
|
# call to getCallbackContext.
|
||
|
|
return self.__callbacks[context][0]
|
||
|
|
|
||
|
|
def getCallbackArgs(self, context):
|
||
|
|
# Returns the extraArgs that were passed in to the previous
|
||
|
|
# call to getCallbackContext.
|
||
|
|
return self.__callbacks[context][1]
|
||
|
|
|
||
|
|
def doCallbackContext(self, context, args):
|
||
|
|
# This is called after the AI has responded to the message
|
||
|
|
# sent via getCallbackContext(), above. The context number is
|
||
|
|
# looked up in the table and the associated callback is
|
||
|
|
# issued.
|
||
|
|
|
||
|
|
# This is intended to be called within derivations of
|
||
|
|
# DistributedObject, not directly by other objects.
|
||
|
|
|
||
|
|
tuple = self.__callbacks.get(context)
|
||
|
|
if tuple:
|
||
|
|
callback, extraArgs = tuple
|
||
|
|
completeArgs = args + extraArgs
|
||
|
|
if callback != None:
|
||
|
|
callback(*completeArgs)
|
||
|
|
del self.__callbacks[context]
|
||
|
|
else:
|
||
|
|
self.notify.warning("Got unexpected context from AI: %s" % (context))
|
||
|
|
|
||
|
|
def setBarrierData(self, data):
|
||
|
|
# This message is sent by the AI to tell us the barriers and
|
||
|
|
# avIds for which the AI is currently waiting. The client
|
||
|
|
# needs to look up its pending context in the table (and
|
||
|
|
# ignore the other contexts). When the client is done
|
||
|
|
# handling whatever it should handle in its current state, it
|
||
|
|
# should call doneBarrier(), which will send the context
|
||
|
|
# number back to the AI.
|
||
|
|
for context, name, avIds in data:
|
||
|
|
for avId in avIds:
|
||
|
|
if self.cr.isLocalId(avId):
|
||
|
|
# We found the local avatar's id; stop here.
|
||
|
|
self.__barrierContext = (context, name)
|
||
|
|
assert self.notify.debug('setBarrierData(%s, %s)' % (context, name))
|
||
|
|
return
|
||
|
|
|
||
|
|
# This barrier didn't involve this client; ignore it.
|
||
|
|
assert self.notify.debug('setBarrierData(%s)' % (None))
|
||
|
|
self.__barrierContext = None
|
||
|
|
|
||
|
|
def getBarrierData(self):
|
||
|
|
# Return a trivially-empty (context, name, avIds) value.
|
||
|
|
return ((0, '', []),)
|
||
|
|
|
||
|
|
def doneBarrier(self, name = None):
|
||
|
|
# Tells the AI we have finished handling our task. If the
|
||
|
|
# optional name parameter is specified, it must match the
|
||
|
|
# barrier name specified on the AI, or the barrier is ignored.
|
||
|
|
# This is used to ensure we are not clearing the wrong
|
||
|
|
# barrier.
|
||
|
|
|
||
|
|
# If this is None, it either means we have called
|
||
|
|
# doneBarrier() twice, or we have not received a barrier
|
||
|
|
# context from the AI. I think in either case it's ok to
|
||
|
|
# silently ignore the error.
|
||
|
|
if self.__barrierContext != None:
|
||
|
|
context, aiName = self.__barrierContext
|
||
|
|
if name == None or name == aiName:
|
||
|
|
assert self.notify.debug('doneBarrier(%s, %s)' % (context, aiName))
|
||
|
|
self.sendUpdate("setBarrierReady", [context])
|
||
|
|
self.__barrierContext = None
|
||
|
|
else:
|
||
|
|
assert self.notify.debug('doneBarrier(%s) ignored; current barrier is %s' % (name, aiName))
|
||
|
|
else:
|
||
|
|
assert self.notify.debug('doneBarrier(%s) ignored; no active barrier.' % (name))
|
||
|
|
|
||
|
|
def addInterest(self, zoneId, note="", event=None):
|
||
|
|
return self.cr.addInterest(self.getDoId(), zoneId, note, event)
|
||
|
|
|
||
|
|
def removeInterest(self, handle, event=None):
|
||
|
|
return self.cr.removeInterest(handle, event)
|
||
|
|
|
||
|
|
def b_setLocation(self, parentId, zoneId):
|
||
|
|
self.d_setLocation(parentId, zoneId)
|
||
|
|
self.setLocation(parentId, zoneId)
|
||
|
|
|
||
|
|
def d_setLocation(self, parentId, zoneId):
|
||
|
|
self.cr.sendSetLocation(self.doId, parentId, zoneId)
|
||
|
|
|
||
|
|
def setLocation(self, parentId, zoneId):
|
||
|
|
self.cr.storeObjectLocation(self, parentId, zoneId)
|
||
|
|
|
||
|
|
def getLocation(self):
|
||
|
|
try:
|
||
|
|
if self.parentId == 0 and self.zoneId == 0:
|
||
|
|
return None
|
||
|
|
# This is a -1 stuffed into a uint32
|
||
|
|
if self.parentId == 0xffffffff and self.zoneId == 0xffffffff:
|
||
|
|
return None
|
||
|
|
return (self.parentId, self.zoneId)
|
||
|
|
except AttributeError:
|
||
|
|
return None
|
||
|
|
|
||
|
|
def getParentObj(self):
|
||
|
|
if self.parentId is None:
|
||
|
|
return None
|
||
|
|
return self.cr.doId2do.get(self.parentId)
|
||
|
|
|
||
|
|
def isLocal(self):
|
||
|
|
# This returns true if the distributed object is "local,"
|
||
|
|
# which means the client created it instead of the AI, and it
|
||
|
|
# gets some other special handling. Normally, only the local
|
||
|
|
# avatar class overrides this to return true.
|
||
|
|
return self.cr and self.cr.isLocalId(self.doId)
|
||
|
|
|
||
|
|
def isGridParent(self):
|
||
|
|
# If this distributed object is a DistributedGrid return 1. 0 by default
|
||
|
|
return 0
|
||
|
|
|
||
|
|
def execCommand(self, string, mwMgrId, avId, zoneId):
|
||
|
|
pass
|