これを試してみてください、それはかなり簡単です..
import pygame
pygame.mixer.init()
pygame.init()
# Maybe you can subclass the pygame.mixer.Sound and
# add the methods below to it..
class Fader(object):
instances = []
def __init__(self, fname):
super(Fader, self).__init__()
assert isinstance(fname, basestring)
self.sound = pygame.mixer.Sound(fname)
self.increment = 0.01 # tweak for speed of effect!!
self.next_vol = 1 # fade to 100 on start
Fader.instances.append(self)
def fade_to(self, new_vol):
# you could change the increment here based on something..
self.next_vol = new_vol
@classmethod
def update(cls):
for inst in cls.instances:
curr_volume = inst.sound.get_volume()
# print inst, curr_volume, inst.next_vol
if inst.next_vol > curr_volume:
inst.sound.set_volume(curr_volume + inst.increment)
elif inst.next_vol < curr_volume:
inst.sound.set_volume(curr_volume - inst.increment)
sound1 = Fader("1.wav")
sound2 = Fader("2.wav")
sound1.sound.play()
sound2.sound.play()
sound2.sound.set_volume(0)
# fading..
sound1.fade_to(0)
sound2.fade_to(1)
while True:
Fader.update() # a call that will update all the faders..