将您的音乐文件(路径)放入列表,定义自定义使用事件并调用
pygame.mixer.music.set_endevent(YOUR_USEREVENT).然后,当歌曲结束时,pygame会将此事件添加到事件队列中,您可以执行一些代码来更改当前歌曲的索引.在下面的示例中,您可以通过按右箭头键增加索引或等到歌曲结束(发出SONG_FINISHED事件),程序将选择随机歌曲(索引).
import random
import pygame as pg
pg.mixer.pre_init(44100, -16, 2, 2048)
pg.init()
screen = pg.display.set_mode((640, 480))
# A list of the music file paths.
SONGS = ['file1.ogg', 'file2.ogg', 'file3.ogg']
# Here we create a custom event type (it's just an int).
SONG_FINISHED = pg.USEREVENT + 1
# When a song is finished, pygame will add the
# SONG_FINISHED event to the event queue.
pg.mixer.music.set_endevent(SONG_FINISHED)
# Load and play the first song.
pg.mixer.music.load('file1.ogg')
pg.mixer.music.play(0)
def main():
clock = pg.time.Clock()
song_idx = 0 # The index of the current song.
done = False
while not done:
for event in pg.event.get():
if event.type == pg.QUIT:
done = True
elif event.type == pg.KEYDOWN:
# Press right arrow key to increment the
# song index. Modulo is needed to keep
# the index in the correct range.
if event.key == pg.K_RIGHT:
print('Next song.')
song_idx += 1
song_idx %= len(SONGS)
pg.mixer.music.load(SONGS[song_idx])
pg.mixer.music.play(0)
# When a song ends the SONG_FINISHED event is emitted.
# Then just pick a random song and play it.
elif event.type == SONG_FINISHED:
print('Song finished. Playing random song.')
pg.mixer.music.load(random.choice(SONGS))
pg.mixer.music.play(0)
screen.fill((30, 60, 80))
pg.display.flip()
clock.tick(30)
if __name__ == '__main__':
main()
pg.quit()
