我正在Pygame上开发一款基本的射击游戏（我正在学习教程。）我决定添加背景音乐以保持良好状态。代码（很长！）：
import pygame
from pygame import image as sprite
pygame.init()
dow = pygame.display.set_mode((1000, 700))
pygame.display.set_caption("PY.Touhou")
clock = pygame.time.Clock()
rightSprites = [sprite.load('ness-right1.png'),
pygame.image.load('ness-right2.png'),
pygame.image.load('ness-right3.png'),
pygame.image.load('ness-right4.png'),
pygame.image.load('ness-right5.png'),
pygame.image.load('ness-right6.png'),
pygame.image.load('ness-right7.png'),
pygame.image.load('ness-right8.png')
]
leftSprites = [
sprite.load('ness-left1.png'),
sprite.load('ness-left2.png'),
sprite.load('ness-left3.png'),
sprite.load('ness-left4.png'),
sprite.load('ness-left5.png'),
sprite.load('ness-left6.png'),
sprite.load('ness-left7.png'),
sprite.load('ness-left8.png')
]
scene = pygame.image.load('bg.png')
idle = pygame.image.load('ness-idle.png')
class Player(object):
def __init__(self, x_pos, y_pos, w, h):
self.x_pos = x_pos
self.y_pos = y_pos
self.w = w
self.h = h
self.velocity = 15
self.JUMPbool = False
self.atleft = False
self.atright = False
self.steps = 0
self.jumpheight = 12
self.hitbox = (self.x_pos + 50, self.y_pos, 73, 227)
self.still = True
def move(self):
if self.steps + 1 >= 24:
self.steps = 0
if not self.still:
if self.atleft:
dow.blit(leftSprites[self.steps // 4], (self.x_pos, self.y_pos))
self.steps += 1
elif self.atright:
dow.blit(rightSprites[self.steps // 4], (self.x_pos, self.y_pos))
self.steps += 1
else:
if self.atright:
dow.blit(rightSprites[1], (self.x_pos, self.y_pos))
else:
dow.blit(leftSprites[1], (self.x_pos, self.y_pos))
self.hitbox = (self.x_pos + 50, self.y_pos, 73, 227)
# pygame.draw.rect(dow, (0, 0, 255), self.hitbox, 2)
class IceBullet(object):
def __init__(self, x_pos, y_pos, radius, color, direction):
self.x_pos = x_pos
self.y_pos = y_pos
self.radius = radius
self.color = color
self.direction = direction
self.velocity = 8 * direction
def summon(self):
pygame.draw.circle(dow, self.color, (self.x_pos, self.y_pos), self.radius)
class EnemyCirno(object):
erightSprites = [sprite.load('e-right%s.png' % pic) for pic in range(1, 9)]
eleftSprites = [sprite.load('e-left%s.png' % pic) for pic in range(1, 9)]
def __init__(self, x_pos, y_pos, w, h, ending):
self.x_pos = x_pos
self.y_pos = y_pos
self.w = w
self.h = h
self.ending = ending
self.path = [self.x_pos, self.ending]
self.hitbox = (self.x_pos + 50, self.y_pos, 73, 227)
self.steps = 0
self.health = 20
self.isAlive = True
self.velocity = 4
def summon(self):
self.move()
if self.isAlive:
if self.steps + 1 >= 24:
self.steps = 0
if self.velocity > 0:
dow.blit(self.erightSprites[self.steps // 4], (self.x_pos, self.y_pos))
self.steps += 1
else:
dow.blit(self.eleftSprites[self.steps // 4], (self.x_pos, self.y_pos))
self.steps += 1
pygame.draw.rect(dow, (255, 10, 0), (100, 110, 400, 20))
pygame.draw.rect(dow, (5, 255, 10), (100, 110, 200 - (20 * (10 - self.health)), 20))
enemy_health = italicStyle.render('Enemy Health', 1, (255, 0, 0))
dow.blit(enemy_health, (100, 150))
self.hitbox = (self.x_pos + 50, self.y_pos, 73, 227)
# pygame.draw.rect(dow, (0, 0, 0), self.hitbox, 2)
def move(self):
if self.velocity > 0:
if self.x_pos + self.velocity < self.path[1]:
self.x_pos += self.velocity
else:
self.velocity = self.velocity * -1
self.steps = 0
else:
if self.x_pos - self.velocity > self.path[0]:
self.x_pos += self.velocity
else:
self.velocity = self.velocity * -1
self.steps = 0
def hit(self):
if self.health > 1:
self.health -= 0.50
hit = pygame.mixer.Sound('hit.wav')
hit.play()
else:
self.isAlive = False
dead = pygame.mixer.Sound('death_sound.wav')
dead.play()
# Main starting loop.
letterStyle = pygame.font.SysFont('Bookman Old Style', 50)
italicStyle = pygame.font.SysFont('Bookman Old Style', 30, False, True)
cirno = Player(300, 470, 160, 233)
score = 0
evilCirno = EnemyCirno(50, 470, 160, 233, 800)
maxShots = 0
bullets = []
running = True
while running is True:
clock.tick(24)
pygame.time.delay(10)
music = pygame.mixer.music.load('main_theme.wav') # And here is where the bug begins!
pygame.mixer.music.play()
for events in pygame.event.get():
if events.type == pygame.QUIT:
running = False
key = pygame.key.get_pressed()
def update_screen():
dow.blit(scene, (0, 0))
textdisplay = letterStyle.render('Score: ' + str(score), 1, (0, 255, 255))
won = italicStyle.render("Enemy defeated!", 1, (10, 255, 19))
dow.blit(textdisplay, (50, 30))
if not evilCirno.isAlive:
dow.blit(won, (100, 150))
cirno.move()
evilCirno.summon()
for shot in bullets:
shot.summon()
pygame.display.update()
if maxShots > 0:
maxShots += 1
if maxShots > 5:
maxShots = 0
for shot in bullets:
if evilCirno.isAlive:
if shot.y_pos - shot.radius < evilCirno.hitbox[1] + evilCirno.hitbox[3] and shot.y_pos + shot.radius > \
evilCirno.hitbox[1]:
if shot.x_pos + shot.radius > evilCirno.hitbox[0] and shot.x_pos - shot.radius < evilCirno.hitbox[0] + \
evilCirno.hitbox[2]:
evilCirno.hit()
score += 50
bullets.pop(bullets.index(shot))
if 1000 > shot.x_pos > 0:
shot.x_pos += shot.velocity
else:
bullets.pop(bullets.index(shot))
if key[pygame.K_z] and maxShots == 0:
shoot = pygame.mixer.Sound('bullet.wav')
shoot.play()
if cirno.atleft:
facing = -1
else:
facing = 1
if len(bullets) < 5:
bullets.append(
IceBullet(round(cirno.x_pos + cirno.w // 2), round(cirno.y_pos + cirno.h // 1.2), 20, (0, 0, 255),
facing))
maxShots = 1
if key[pygame.K_LEFT] and cirno.x_pos > cirno.velocity: # Will stop ASAP when reached
cirno.x_pos -= cirno.velocity
cirno.atleft = True
cirno.atright = False
cirno.still = False
elif key[
pygame.K_RIGHT] and cirno.x_pos < 1000 - cirno.velocity - cirno.w: # If it goes past this, it will stop ASAP, as well
cirno.x_pos += cirno.velocity
cirno.atright = True
cirno.atleft = False
cirno.still = False
else:
cirno.steps = 0
cirno.still = True
if not cirno.JUMPbool:
if key[pygame.K_UP]:
cirno.JUMPbool = True
cirno.steps = 0
else:
if cirno.jumpheight >= -12: # What to do if pygame.K_SPACE is pressed down.
cirno.y_pos -= (cirno.jumpheight * abs(cirno.jumpheight)) * 0.5
cirno.jumpheight -= 1
else:
cirno.jumpheight = 12
cirno.JUMPbool = False
update_screen()
pygame.quit()
到目前为止，音乐和声音实际上都在播放。尽管问题在于它只是一遍又一遍地循环播放音乐的开始部分（这只是头几秒钟），所以您得到的只是听起来像是坏了的MP3播放器。（作为参考，音乐是1:45。更奇怪的是，我看到人们毫无问题地使用它。）有什么办法可以解决这个错误？感谢您的帮助：）
您在这里看到错误了吗？
while running is True:
[...]
music = pygame.mixer.music.load('main_theme.wav')
pygame.mixer.music.play()
正在重新加载并重新播放，以重新播放代码主循环中的音乐。那就是游戏的每更新一次[[frame]，>在主循环外加载和播放音乐：
music = pygame.mixer.music.load('main_theme.wav')
pygame.mixer.music.play()
while running is True:
[...]
然后您的代码也可以调用mixer.get_busy() function，以查看音乐是否已停止，并对此进行处理。您可能还想研究PyGame声音混合器通道，因此您的声音效果会与背景音乐正确混合。