mirror of
https://github.com/Sneed-Group/Poodletooth-iLand
synced 2024-12-27 05:32:41 -06:00
77 lines
2.9 KiB
Python
77 lines
2.9 KiB
Python
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from direct.directnotify.DirectNotifyGlobal import directNotify
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from direct.showbase.DirectObject import DirectObject
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from direct.showbase.EventGroup import EventGroup
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class InterestWatcher(DirectObject):
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"""Object that observes all interests adds/removes over a period of time,
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and sends out an event when all of those interests have closed"""
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notify = directNotify.newCategory('InterestWatcher')
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def __init__(self, interestMgr, name, doneEvent=None,
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recurse=True, start=True, mustCollect=False, doCollectionMgr=None):
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DirectObject.__init__(self)
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self._interestMgr = interestMgr
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if doCollectionMgr is None:
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doCollectionMgr = interestMgr
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self._doCollectionMgr = doCollectionMgr
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self._eGroup = EventGroup(name, doneEvent=doneEvent)
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self._doneEvent = self._eGroup.getDoneEvent()
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self._gotEvent = False
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self._recurse = recurse
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if self._recurse:
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# this will hold a dict of parentId to set(zoneIds) that are closing
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self.closingParent2zones = {}
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if start:
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self.startCollect(mustCollect)
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def startCollect(self, mustCollect=False):
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self._mustCollect = mustCollect
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self.accept(self._interestMgr._getAddInterestEvent(), self._handleInterestOpenEvent)
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self.accept(self._interestMgr._getRemoveInterestEvent(), self._handleInterestCloseEvent)
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def stopCollect(self):
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self.ignore(self._interestMgr._getAddInterestEvent())
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self.ignore(self._interestMgr._getRemoveInterestEvent())
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mustCollect = self._mustCollect
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del self._mustCollect
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if not self._gotEvent:
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if mustCollect:
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logFunc = self.notify.error
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else:
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logFunc = self.notify.warning
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logFunc('%s: empty interest-complete set' % self.getName())
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self.destroy()
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messenger.send(self.getDoneEvent())
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else:
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self.accept(self.getDoneEvent(), self.destroy)
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def destroy(self):
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if hasattr(self, '_eGroup'):
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self._eGroup.destroy()
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del self._eGroup
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del self._gotEvent
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del self._interestMgr
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self.ignoreAll()
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def getName(self):
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return self._eGroup.getName()
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def getDoneEvent(self):
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return self._doneEvent
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def _handleInterestOpenEvent(self, event):
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self._gotEvent = True
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self._eGroup.addEvent(event)
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def _handleInterestCloseEvent(self, event, parentId, zoneIdList):
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self._gotEvent = True
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self._eGroup.addEvent(event)
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"""
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if self._recurse:
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# this interest is in the process of closing. If an interest
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# underneath any objects in that interest close, we need to know
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# about it.
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self.closingParent2zones.setdefault(parentId, set())
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self.closingParent2zones[parentId].union(set(zoneIdList))
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"""
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