53 lines
2.0 KiB
Python
53 lines
2.0 KiB
Python
"""SoundInterval module: contains the SoundInterval class"""
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from PandaModules import *
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from Interval import *
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class SoundInterval(Interval):
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# Name counter
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soundNum = 1
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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):
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"""__init__(sound, loop, name)
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"""
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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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# If no duration given use sound's duration as interval's duration
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if duration == 0.0:
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duration = self.sound.length()
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# Generate unique name if necessary
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if (name == None):
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name = 'Sound-%d' % SoundInterval.soundNum
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SoundInterval.soundNum += 1
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# Initialize superclass
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Interval.__init__(self, name, duration)
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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 sound based on current time
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if (t >= self.getDuration()) or (event == IVAL_STOP):
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# If end of sound reached or stop event received, stop sound
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AudioManager.stop(self.sound)
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elif (event == IVAL_INIT):
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# IVAL_INIT event, start new sound
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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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if (t < 0.1):
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t = 0.0
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# Start sound
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AudioManager.play(self.sound, t)
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# Loop in necessary
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if (self.loop):
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AudioManager.setLoop(self.sound, 1)
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