mirror of
https://github.com/Sneed-Group/Poodletooth-iLand
synced 2024-12-29 06:32:40 -06:00
110 lines
4.2 KiB
Python
Executable file
110 lines
4.2 KiB
Python
Executable file
"""Undocumented Module"""
|
|
|
|
__all__ = ['EventGroup']
|
|
|
|
from direct.showbase import DirectObject
|
|
from direct.showbase.PythonUtil import SerialNumGen, Functor
|
|
|
|
class EventGroup(DirectObject.DirectObject):
|
|
"""This class allows you to group together multiple events and treat
|
|
them as a single event. The EventGroup will not send out its event until
|
|
all of its sub-events have occured."""
|
|
|
|
_SerialNumGen = SerialNumGen()
|
|
|
|
def __init__(self, name, subEvents=None, doneEvent=None):
|
|
"""
|
|
Provide a meaningful name to aid debugging.
|
|
|
|
doneEvent is optional. If not provided, a unique done event will be
|
|
generated and is available as EventGroup.getDoneEvent().
|
|
|
|
Examples:
|
|
|
|
# waits for gotRed and gotBlue, then sends out 'gotColors'
|
|
EventGroup('getRedAndBlue', ('gotRed', 'gotBlue'), doneEvent='gotColors')
|
|
|
|
# waits for two interests to close, then calls self._handleBothInterestsClosed()
|
|
# uses EventGroup.getDoneEvent() and EventGroup.newEvent() to generate unique,
|
|
# disposable event names
|
|
eGroup = EventGroup('closeInterests')
|
|
self.acceptOnce(eGroup.getDoneEvent(), self._handleBothInterestsClosed)
|
|
base.cr.closeInterest(interest1, event=eGroup.newEvent('closeInterest1'))
|
|
base.cr.closeInterest(interest2, event=eGroup.newEvent('closeInterest2'))
|
|
"""
|
|
self._name = name
|
|
self._subEvents = set()
|
|
self._completedEvents = set()
|
|
if doneEvent is None:
|
|
# no doneEvent provided, allocate a unique event name
|
|
doneEvent = 'EventGroup-%s-%s-Done' % (
|
|
EventGroup._SerialNumGen.next(), self._name)
|
|
self._doneEvent = doneEvent
|
|
self._completed = False
|
|
|
|
if subEvents is not None:
|
|
# add the events that were passed in to start with, more may be added
|
|
# later via newEvent()
|
|
for event in subEvents:
|
|
self.addEvent(event)
|
|
|
|
def destroy(self):
|
|
if hasattr(self, '_name'):
|
|
# keep this around
|
|
#del self._doneEvent
|
|
del self._name
|
|
del self._subEvents
|
|
del self._completedEvents
|
|
self.ignoreAll()
|
|
|
|
def getName(self):
|
|
return self._name
|
|
|
|
def getDoneEvent(self):
|
|
return self._doneEvent
|
|
|
|
def isCompleted(self):
|
|
return self._completed
|
|
|
|
def addEvent(self, eventName):
|
|
""" Adds a new event to the list of sub-events that we're waiting on.
|
|
Returns the name of the event. """
|
|
if self._completed:
|
|
self.notify.error('addEvent(\'%s\') called on completed EventGroup \'%s\'' % (
|
|
eventName, self.getName()))
|
|
if eventName in self._subEvents:
|
|
self.notify.error('addEvent(\'%s\'): event already in EventGroup \'%s\'' % (
|
|
eventName, self.getName()))
|
|
self._subEvents.add(eventName)
|
|
self.acceptOnce(eventName, Functor(self._subEventComplete, eventName))
|
|
return eventName
|
|
|
|
def newEvent(self, name):
|
|
""" Pass in an event name and it will be unique-ified for you and added
|
|
to this EventGroup. TIP: there's no need to repeat information in this event
|
|
name that is already in the name of the EventGroup object.
|
|
Returns the new event name. """
|
|
return self.addEvent('%s-SubEvent-%s-%s' % (
|
|
self._name, EventGroup._SerialNumGen.next(), name))
|
|
|
|
def _subEventComplete(self, subEventName, *args, **kwArgs):
|
|
if subEventName in self._completedEvents:
|
|
self.notify.warning('_subEventComplete: \'%s\' already received' %
|
|
subEventName)
|
|
else:
|
|
self._completedEvents.add(subEventName)
|
|
if self._completedEvents == self._subEvents:
|
|
self._signalComplete()
|
|
|
|
def _signalComplete(self):
|
|
self._completed = True
|
|
messenger.send(self._doneEvent)
|
|
self.destroy()
|
|
|
|
def __repr__(self):
|
|
return '%s(\'%s\', %s, doneEvent=\'%s\') # completed=%s' % (
|
|
self.__class__.__name__,
|
|
self._name,
|
|
tuple(self._subEvents),
|
|
self._doneEvent,
|
|
tuple(self._completedEvents))
|