84 lines
3.0 KiB
Python
84 lines
3.0 KiB
Python
"""SoundInterval module: contains the SoundInterval class"""
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from PandaModules import *
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from DirectNotifyGlobal import *
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import Interval
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class SoundInterval(Interval.Interval):
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# Name counter
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soundNum = 1
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# create SoundInterval DirectNotify category
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notify = directNotify.newCategory('SoundInterval')
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# Class methods
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# Create a sound interval
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# If loop = 0, sound will play once, duration of the interval
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# equals the duration of the sound
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# If loop = 1, the sound will loop for the specified duration
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# If no duration is specified, sound will loop for the duration
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# of the sound, i.e. it will only play once.....usually, there
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# seems to be some timing in the audio such that the stop doesn't
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# kill the looping sound until the next time around if duration
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# of the interval equals duration of the sound
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def __init__(self, sound, loop = 0, duration = 0.0, name = None, volume = 1.0, startTime = 0.0):
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"""__init__(sound, loop, name)
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"""
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# Generate unique name
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id = 'Sound-%d' % SoundInterval.soundNum
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SoundInterval.soundNum += 1
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# Record instance variables
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self.sound = sound
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self.loop = loop
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self.volume = volume
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self.startTime = startTime
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# If no duration given use sound's duration as interval's duration
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if duration == 0.0 and self.sound != None:
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duration = self.sound.length() - self.startTime
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if (duration == 0):
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self.notify.warning('zero length duration!')
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# MPG - hack for Miles bug
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#duration += 1.5
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# DCR - hack for Miles bug - adding 1.5 seconds caused
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# problems for MG_neg_buzzer.wav
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duration += min(duration * 2.4, 1.5)
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# Generate unique name if necessary
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if (name == None):
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name = id
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# Initialize superclass
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Interval.Interval.__init__(self, name, duration)
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def privInitialize(self, t):
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# If its within a 10th of a second of the start,
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# start at the beginning
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t1 = t + self.startTime
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if (t1 < 0.1):
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t1 = 0.0
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if self.sound != None:
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self.sound.setVolume(self.volume)
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self.sound.setTime(t1)
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self.sound.setLoop(self.loop)
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self.sound.play()
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self.state = CInterval.SStarted
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self.currT = t1
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def privStep(self, t):
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if self.state == CInterval.SPaused:
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# Restarting from a pause.
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if self.sound != None:
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self.sound.setVolume(self.volume)
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self.sound.setTime(t)
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self.sound.setLoop(self.loop)
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self.sound.play()
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self.state = CInterval.SStarted
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self.currT = t
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def privFinalize(self):
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if self.sound != None:
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self.sound.stop()
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self.currT = self.getDuration()
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self.state = CInterval.SFinal
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def privInterrupt(self):
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if self.sound != None:
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self.sound.stop()
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self.state = CInterval.SPaused
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