如何将背景音乐添加到python游戏中

Question

I have been trying different methods of adding background music to my game, but none of them works the way I want it to. I the music to play throughout the gameplay.

Here is the code:

#!/usr/bin/env python

import pygame
from pygame.locals import *  # noqa
import sys
import random



class FlappyBird:
def __init__(self):
    self.screen = pygame.display.set_mode((400, 708))
    self.bird = pygame.Rect(65, 50, 50, 50)
    self.background = pygame.image.load("assets/background1.png").convert()
    self.birdSprites = 
[pygame.image.load("assets/superman.png").convert_alpha(),

pygame.image.load("assets/superman.png").convert_alpha(),
                        pygame.image.load("assets/supermangrayed.png")]
    self.wallUp = pygame.image.load("assets/s_purple.png").convert_alpha() # 
Top of the screen
    self.wallDown = pygame.image.load("assets/cloud.png").convert_alpha() # 
Bottom of the screen
    self.gap = 25   # Gap between the clouds and the building
    self.wallx = 400
    self.birdY = 25
    self.jump = 1
    self.jumpSpeed = 10
    self.gravity = 10
    self.dead = False
    self.sprite = 0
    self.counter = 0
    self.offset = random.randint(-110, 110)
    # I haven't used this variable yet
    self.sound = path.join(path.dirname(__file__), 'assets')


def updateWalls(self):
    self.wallx -= 2
    if self.wallx < -80:
        self.wallx = 400
        self.counter += 1
        self.offset = random.randint(-50, 50)


def birdUpdate(self):
    if self.jump:
        self.jumpSpeed -= 0.5
        self.birdY -= self.jumpSpeed
        self.jump -= 1
    else:
        self.birdY += self.gravity
        self.gravity += 0.1
    self.bird[1] = self.birdY
    upRect = pygame.Rect(self.wallx,
                         360 + self.gap - self.offset + 10,
                         self.wallUp.get_width() - 10,
                         self.wallUp.get_height())
    downRect = pygame.Rect(self.wallx,
                           0 - self.gap - self.offset - 5,
                           self.wallDown.get_width() - 10,
                           self.wallDown.get_height())
    if upRect.colliderect(self.bird):
        self.dead = True
    if downRect.colliderect(self.bird):
        self.dead = True
    if not 0 < self.bird[1] < 720:
        self.bird[1] = 50
        self.birdY = 50
        self.dead = False
        self.counter = 0
        self.wallx = 400
        self.offset = random.randint(-110, 110)
        self.gravity = 3

def run(self):
    clock = pygame.time.Clock()
    pygame.font.init()
    font = pygame.font.SysFont("calibri", 50)
    while True:
        clock.tick(60)
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                sys.exit()
            if (event.type == pygame.KEYDOWN or event.type == 
pygame.MOUSEBUTTONDOWN) and not self.dead:
                self.jump = 10
                self.gravity = 4.5
                self.jumpSpeed = 10.5

        self.screen.fill((255, 255, 255))
        self.screen.blit(self.background, (0, 0))
        self.screen.blit(self.wallUp,
                         (self.wallx, 300 + self.gap - self.offset))
        self.screen.blit(self.wallDown,
                         (self.wallx, 1 - self.gap - self.offset))
        self.screen.blit(font.render(str(self.counter),
                                     -1,
                                     (255, 255, 255)),
                         (200, 50))
        if self.dead:
            self.sprite = 2
        elif self.jump:
            self.sprite = 1
        self.screen.blit(self.birdSprites[self.sprite], (50, self.birdY))
        if not self.dead:
            self.sprite = 0
        self.updateWalls()
        self.birdUpdate()
        pygame.display.update()

if __name__ == "__main__":
FlappyBird().run()

Thank you in advance

Answer 1

Please try pygame.mixer

pygame.mixer.music.load("music.mp3") 
pygame.mixer.music.play(-1,0.0)

Answer 2

Rule of thumb: Check documentation before Stack Overflow.

https://www.pygame.org/docs/ref/mixer.html

Use pygame.mixer.init() to initialize the mixer.

Use pygame.mixer.music.load("file") to load music into the mixer.

Use pygame.mixer.music.play(loops, start) to play the music loaded into the mixer.

ETC.

Just read the documentation, that's what it is there for!