83 lines
3.0 KiB
Python
83 lines
3.0 KiB
Python
"""ActorInterval module: contains the ActorInterval class"""
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from PandaModules import *
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from Interval import *
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class ActorInterval(Interval):
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# Name counter
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animNum = 1
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# Class methods
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# Interval used to play an animation. If loop = 0, animation is
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# played only once and the pose of the anim depends on t passed
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# into the setT method every frame. If loop = 1, the animation is
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# started and plays on its own and stopped when t >= duration or
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# playback stop event occurs. If no duration is specified, interval
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# duration defaults to be equal to the length of the animation.
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# Note: if loop == 0 and duration > anim duration then the animation
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# will play once and then nothing will happen for the remainder of the
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# interval
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def __init__(self, actor, animName, loop=0, duration=0.0,
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startTime = 0.0, name=None):
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"""__init__(name)
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"""
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# Generate unique id
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id = 'Actor-%d' % ActorInterval.animNum
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ActorInterval.animNum += 1
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# Record class specific variables
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self.actor = actor
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self.animName = animName
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self.loop = loop
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self.numFrames = self.actor.getNumFrames(self.animName)
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# Compute start time
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self.startTime = startTime
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# If no name specified, use id as name
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if (name == None):
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name = id
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# Compute duration if no duration specified
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if duration == 0.0:
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duration = max(self.actor.getDuration(self.animName) - startTime,
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0.0)
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# Initialize superclass
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Interval.__init__(self, name, duration)
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# Update stopEvent
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if self.loop:
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self.stopEvent = id + '_stopEvent'
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self.stopEventList = [self.stopEvent]
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def updateFunc(self, t, event = IVAL_NONE):
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""" updateFunc(t, event)
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Go to time t
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"""
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# Update animation based upon current time
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# Pose or stop anim
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if (t >= self.getDuration()):
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if (self.actor != None):
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self.actor.stop()
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else:
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self.notify.warning('updateFunc() - actor == None!')
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if self.loop:
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self.ignore(self.stopEvent)
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elif self.loop == 1:
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if event == IVAL_INIT:
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# Determine the current frame
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currT = (self.actor.getFrameRate(self.animName) *
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(self.startTime + t))
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print t, currT
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frame = int(currT) % self.numFrames
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print frame
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# Pose anim
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self.actor.pose(self.animName, frame)
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# And start loop, restart flag says continue from current frame
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self.actor.loop(self.animName, restart=0)
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self.accept(self.stopEvent, self.actor.stop)
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else:
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# Determine the current frame
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currT = (self.actor.getFrameRate(self.animName) *
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(self.startTime + t))
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frame = int(currT) % self.numFrames
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# Pose anim
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self.actor.pose(self.animName, frame)
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