pygame音乐播放器我无法正确显示当前播放的歌曲

Question

import random
import pygame as pg
import os
white = (255,255,255)
green = (0,255,0)
blue = (0,0,255)
os.chdir(r'C:UsersEliavDesktopproject workspacegui codeeasyMusic')
song_finished = pg.USEREVENT +1
pg.mixer.pre_init(44100,-16,2,2048)
pg.init()
def random_song():
songs = os.listdir()
rnd_song = random.choice(songs)
return rnd_song
def screen():
clk = pg.time.Clock()
screen = pg.display.set_mode((640,480))
font = pg.font.Font('freesansbold.ttf', 32)
text = font.render(random_song(), True, green, blue)
textRect = text.get_rect()
screen.fill(white)
screen.blit(text, textRect)
pg.display.flip()
pg.display.update()
clk.tick(30)

def main():
rnd = random_song()
done = False
pg.mixer.music.load(rnd)
pg.mixer.music.play(0)
while not done:
for event in pg.event.get():
if event.type == pg.QUIT:
done = True
elif event.type == song_finished:
print('Song finished. Playing random song.')
pg.mixer.music.load(rnd)
pg.mixer.music.play(0)
screen()
main()

Answer 1

请参阅如何在Pygame中随机播放Mp3文件。您必须显示rnd，而不是另一个random_song()。但是，当当前歌曲结束时，获取一首新的随机歌曲。例如：

def draw_text(surf, message, font, x, y):
text = font.render(message, True, green, blue)
textRect = text.get_rect(topleft = (x, y))
surf.blit(text, textRect)

def main():
screen = pg.display.set_mode((640,480))
clk = pg.time.Clock()
font = pg.font.Font('freesansbold.ttf', 32)
song_finished = pygame.USEREVENT+1
pg.mixer.music.set_endevent(song_finished)
rnd = random_song()
pg.mixer.music.load(rnd)
pg.mixer.music.play(0)
done = False
while not done:
clk.tick(30)
for event in pg.event.get():
if event.type == pg.QUIT:
done = True
elif event.type == song_finished:
print('Song finished. Playing random song.')
rnd = random_song()
pg.mixer.music.load(rnd)
pg.mixer.music.play(0)
screen.fill(white)
draw_text(screen, rnd, font, 10, 10)
pg.display.flip()