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added prelim staggered pos-broadcast task scheduling
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@ -2,6 +2,7 @@
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from ClockDelta import *
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from ClockDelta import *
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from direct.task import Task
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from direct.task import Task
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from direct.showbase.PythonUtil import randFloat
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class DistributedSmoothNodeBase:
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class DistributedSmoothNodeBase:
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"""common base class for DistributedSmoothNode and DistributedSmoothNodeAI
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"""common base class for DistributedSmoothNode and DistributedSmoothNodeAI
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@ -61,7 +62,10 @@ class DistributedSmoothNodeBase:
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def stopPosHprBroadcast(self):
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def stopPosHprBroadcast(self):
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taskMgr.remove(self.getPosHprBroadcastTaskName())
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taskMgr.remove(self.getPosHprBroadcastTaskName())
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def startPosHprBroadcast(self, period=.2):
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def startPosHprBroadcast(self, period=.2, stagger=0):
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# Set stagger to non-zero to randomly delay the initial task execution
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# over 'period' seconds, to spread out task processing over time
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# when a large number of SmoothNodes are created simultaneously.
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taskName = self.getPosHprBroadcastTaskName()
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taskName = self.getPosHprBroadcastTaskName()
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# Set up telemetry optimization variables
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# Set up telemetry optimization variables
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xyz = self.getPos()
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xyz = self.getPos()
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@ -83,10 +87,16 @@ class DistributedSmoothNodeBase:
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# remove any old tasks
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# remove any old tasks
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taskMgr.remove(taskName)
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taskMgr.remove(taskName)
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# spawn the new task
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# spawn the new task
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taskMgr.doMethodLater(self.__broadcastPeriod,
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delay = 0.
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if stagger:
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delay = randFloat(period)
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taskMgr.doMethodLater(self.__broadcastPeriod + delay,
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self.posHprBroadcast, taskName)
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self.posHprBroadcast, taskName)
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def posHprBroadcast(self, task):
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def posHprBroadcast(self, task):
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# TODO: we explicitly stagger the initial task timing in
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# startPosHprBroadcast; we should at least make an effort to keep
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# this task accurately aligned with its period and starting time.
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self.d_broadcastPosHpr()
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self.d_broadcastPosHpr()
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taskName = self.taskName("sendPosHpr")
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taskName = self.taskName("sendPosHpr")
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taskMgr.doMethodLater(self.__broadcastPeriod,
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taskMgr.doMethodLater(self.__broadcastPeriod,
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