def check_sound():
""" Update the sound queue. """
now = datetime.datetime.now()
for voice in range(4):
while music_queue[voice] and now >= music_queue[voice][0]:
music_queue[voice].pop(0)
# remove the notes that have been played
backend.sound_done(voice, len(music_queue[voice]))
def check_sound():
""" Update the sound queue and play sounds. """
global loop_sound
current_chunk = [ None, None, None, None ]
if sound_queue == [ [], [], [], [] ] and loop_sound == [ None, None, None, None ]:
return
check_init_mixer()
for voice in range(4):
# if there is a sound queue, stop looping sound
if sound_queue[voice] and loop_sound[voice]:
stop_channel(voice)
loop_sound[voice] = None
if mixer.Channel(voice).get_queue() == None:
if loop_sound[voice]:
# loop the current playing sound; ok to interrupt it with play cos it's the same sound as is playing
current_chunk[voice] = loop_sound[voice].build_chunk()
elif sound_queue[voice]:
current_chunk[voice] = sound_queue[voice][0].build_chunk()
if not current_chunk[voice]:
sound_queue[voice].pop(0)
try:
current_chunk[voice] = sound_queue[voice][0].build_chunk()
except IndexError:
# sound_queue is empty
continue
if sound_queue[voice][0].loop:
loop_sound[voice] = sound_queue[voice].pop(0)
# any next sound in the sound queue will stop this looping sound
else:
loop_sound[voice] = None
for voice in range(4):
if current_chunk[voice]:
mixer.Channel(voice).queue(current_chunk[voice])
for voice in range(4):
# remove the notes that have been sent to mixer
backend.sound_done(voice, len(sound_queue[voice]))
