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added sendDeleteEvent func and LogicalZoneChange mechanism

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This commit is contained in:
Darren Ranalli 2004-07-23 01:29:30 +00:00
parent 125c2dffbb
commit bfb064b72e
1 changed files with 36 additions and 0 deletions
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36
direct/src/distributed/DistributedObjectAI.py
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@ -11,6 +11,7 @@ class DistributedObjectAI(DirectObject.DirectObject):
"""Distributed Object class:"""
notify = directNotify.newCategory("DistributedObjectAI")
QuietZone = 1
def __init__(self, air):
try:
@ -25,6 +26,11 @@ class DistributedObjectAI(DirectObject.DirectObject):
# init doId pre-allocated flag
self.__preallocDoId = 0
# used to track zone changes across the quiet zone
# NOTE: the quiet zone is defined in OTP, but we need it
# here.
self.lastNonQuietZone = None
# These are used to implement beginBarrier().
self.__nextBarrierContext = 0
self.__barriers = {}
@ -37,10 +43,17 @@ class DistributedObjectAI(DirectObject.DirectObject):
# print ("Destructing: " + self.__class__.__name__)
def getDeleteEvent(self):
# this is sent just before we get deleted
if hasattr(self, 'doId'):
return 'distObjDelete-%s' % self.doId
return None
def sendDeleteEvent(self):
# this is called just before we get deleted
delEvent = self.getDeleteEvent()
if delEvent:
messenger.send(delEvent)
def delete(self):
"""
Inheritors should redefine this to take appropriate action on delete
@ -109,13 +122,36 @@ class DistributedObjectAI(DirectObject.DirectObject):
self.air.sendSetZone(self, zoneId)
def getZoneChangeEvent(self):
# this event is generated whenever this object changes zones.
# arguments are newZoneId, oldZoneId
# includes the quiet zone.
return 'DOChangeZone-%s' % self.doId
def getLogicalZoneChangeEvent(self):
# this event is generated whenever this object changes to a
# non-quiet-zone zone.
# arguments are newZoneId, oldZoneId
# does not include the quiet zone.
return 'DOLogicalChangeZone-%s' % self.doId
def handleZoneChange(self, newZoneId, oldZoneId):
assert oldZoneId == self.zoneId
self.zoneId = newZoneId
self.air.changeDOZoneInTables(self, newZoneId, oldZoneId)
messenger.send(self.getZoneChangeEvent(), [newZoneId, oldZoneId])
# if we are not going into the quiet zone, send a 'logical' zone change
# message
if newZoneId != DistributedObjectAI.QuietZone:
lastLogicalZone = oldZoneId
if oldZoneId == DistributedObjectAI.QuietZone:
lastLogicalZone = self.lastNonQuietZone
self.handleLogicalZoneChange(newZoneId, lastLogicalZone)
self.lastNonQuietZone = newZoneId
def handleLogicalZoneChange(self, newZoneId, oldZoneId):
"""this function gets called as if we never go through the
quiet zone"""
messenger.send(self.getLogicalZoneChangeEvent(),
[newZoneId, oldZoneId])
def getRender(self):
# note that this will return a different node if we change zones