我正在尝试为我的游戏获取背景音乐，但是我似乎无法完美地解决它.我过去曾经使用pygame，但在我的游戏积分中只使用了一首歌. 我希望播放列表连续播放，并随机选择每个曲目.我设法使它在单独的测试文件中工作.我将在下面将此代码发布下来.
I'm trying to get background music for my game, but I can't seem to figure it out perfectly. I've used pygame in the past, but it was only for one song during the credits of my game. I want the playlist to play continuously picking each track randomly. I've managed to get this working in a separate test file. I will post this code down below.
问题是当我在主游戏中调用此功能时，音乐会播放第一首曲目，然后停止播放.如果我输入
The problem is when I call this function in my main game, the music plays the first track, and then stops. If I put in
while pygame.mixer.music.get_busy(): continue它只是播放音乐，而不能让我玩游戏.我希望它在用户玩游戏时不断在播放列表中循环播放(这是一个基于文本的游戏，因此它经常使用raw_input().
It just plays the music and doesn't let me play the game. I want it to loop continuously through the playlist while the user plays the game (it's a text based game so it uses raw_input() a lot.
这是我的代码:
import pygame import random pygame.mixer.init() _songs = [songs, are, here] _currently_playing_song = None def music(): global _currently_playing_song, _songs next_song = random.choice(_songs) while next_song == _currently_playing_song: next_song = random.choice(_songs) _currently_playing_song = next_song pygame.mixer.music.load(next_song) pygame.mixer.music.play() while True: ## This part works for the test, but will not meet my needs music() ## for the full game. while pygame.mixer.music.get_busy(): continue(P.S.我是通过Zed Shaw的"Learn Python The Hard Way"学习python的，所以我的游戏结构使用了本书中的Engine and Map系统)
(P.S. I learned python through Zed Shaw's "Learn Python The Hard Way" so my game structure uses the Engine and Map system from the book)
推荐答案您可以设置 pygame.mixer.music.set_endevent()，音乐播放完毕后会发布到事件队列中.然后，您只需选择另一首歌曲.遵循以下原则:
You can set a pygame.mixer.music.set_endevent() which get posted in the event queue when the music finishes. Then you just choose another song. Something along these lines:
import os import pygame pygame.init() pygame.mixer.init() SIZE = WIDTH, HEIGHT = 720, 460 screen = pygame.display.set_mode(SIZE) MUSIC_ENDED = pygame.USEREVENT pygame.mixer.music.set_endevent(MUSIC_ENDED) BACKGROUND = pygame.Color('black') class Player: def __init__(self, position): self.position = pygame.math.Vector2(position) self.velocity = pygame.math.Vector2() self.image = pygame.Surface((32, 32)) self.rect = self.image.get_rect(topleft=self.position) self.image.fill(pygame.Color('red')) def update(self, dt): self.position += self.velocity * dt self.rect.topleft = self.position def load_music(path): songs = [] for filename in os.listdir(path): if filename.endswith('.wav'): songs.append(os.path.join(path, filename)) return songs def run(): songs = load_music(path='/Users/Me/Music/AwesomeTracks') song_index = 0 # The current song to load pygame.mixer.music.load(songs[song_index]) pygame.mixer.music.play() song_index += 1 clock = pygame.time.Clock() player = Player(position=(WIDTH / 2, HEIGHT / 2)) while True: dt = clock.tick(30) / 1000 for event in pygame.event.get(): if event.type == pygame.QUIT: quit() elif event.type == pygame.KEYDOWN: if event.key == pygame.K_a: player.velocity.x = -200 elif event.key == pygame.K_d: player.velocity.x = 200 elif event.key == pygame.K_w: player.velocity.y = -200 elif event.key == pygame.K_s: player.velocity.y = 200 elif event.type == pygame.KEYUP: if event.key == pygame.K_a or event.key == pygame.K_d: player.velocity.x = 0 elif event.key == pygame.K_w or event.key == pygame.K_s: player.velocity.y = 0 elif event.type == MUSIC_ENDED: song_index = (song_index + 1) % len(songs) # Go to the next song (or first if at last). pygame.mixer.music.load(songs[song_index]) pygame.mixer.music.play() screen.fill(BACKGROUND) player.update(dt) screen.blit(player.image, player.rect) pygame.display.update() run()所以实际的解决方案只有3个部分
So the actual solution is just 3 parts
然后您就可以随心所欲地做任何事情了.
And then you're free to do whatever you desire.
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