Pygame 搅拌机无法使用

Question

我试图使用 pygame.mixer 生成正弦波音频，但是，运行以下代码：

import pygame
pygame.init()
pygame.mixer.init()

给我以下错误：

RuntimeWarning: use mixer: dlopen(/Users/kids/PycharmProjects/PySynth/venv/lib/python3.9/site-packages/pygame/mixer.cpython-39-darwin.so, 2): Library not loaded: @loader_path/libmp3lame.0.dylib
  Referenced from: /Users/kids/PycharmProjects/PySynth/venv/lib/python3.9/site-packages/pygame/.dylibs/libsndfile.1.0.34.dylib
  Reason: no suitable image found.  Did find:
    /Users/kids/PycharmProjects/PySynth/venv/lib/python3.9/site-packages/pygame/.dylibs/libmp3lame.0.dylib: cannot load 'libmp3lame.0.dylib' (load command 0x80000034 is unknown)
    /Users/kids/PycharmProjects/PySynth/venv/lib/python3.9/site-packages/pygame/.dylibs/libmp3lame.0.dylib: cannot load 'libmp3lame.0.dylib' (load command 0x80000034 is unknown)
(ImportError: dlopen(/Users/kids/PycharmProjects/PySynth/venv/lib/python3.9/site-packages/pygame/mixer.cpython-39-darwin.so, 2): Library not loaded: @loader_path/libmp3lame.0.dylib
  Referenced from: /Users/kids/PycharmProjects/PySynth/venv/lib/python3.9/site-packages/pygame/.dylibs/libsndfile.1.0.34.dylib
  Reason: no suitable image found.  Did find:
    /Users/kids/PycharmProjects/PySynth/venv/lib/python3.9/site-packages/pygame/.dylibs/libmp3lame.0.dylib: cannot load 'libmp3lame.0.dylib' (load command 0x80000034 is unknown)
    /Users/kids/PycharmProjects/PySynth/venv/lib/python3.9/site-packages/pygame/.dylibs/libmp3lame.0.dylib: cannot load 'libmp3lame.0.dylib' (load command 0x80000034 is unknown))
  pygame.mixer.get_sdl_mixer_version()
Traceback (most recent call last):
  File "/Users/kids/PycharmProjects/PySynth/main.py", line 11, in <module>
    pygame.mixer.get_sdl_mixer_version()
  File "/Users/kids/PycharmProjects/PySynth/venv/lib/python3.9/site-packages/pygame/__init__.py", line 70, in __getattr__
    raise NotImplementedError(missing_msg)
NotImplementedError: mixer module not available (ImportError: dlopen(/Users/kids/PycharmProjects/PySynth/venv/lib/python3.9/site-packages/pygame/mixer.cpython-39-darwin.so, 2): Library not loaded: @loader_path/libmp3lame.0.dylib
  Referenced from: /Users/kids/PycharmProjects/PySynth/venv/lib/python3.9/site-packages/pygame/.dylibs/libsndfile.1.0.34.dylib
  Reason: no suitable image found.  Did find:
    /Users/kids/PycharmProjects/PySynth/venv/lib/python3.9/site-packages/pygame/.dylibs/libmp3lame.0.dylib: cannot load 'libmp3lame.0.dylib' (load command 0x80000034 is unknown)
    /Users/kids/PycharmProjects/PySynth/venv/lib/python3.9/site-packages/pygame/.dylibs/libmp3lame.0.dylib: cannot load 'libmp3lame.0.dylib' (load command 0x80000034 is unknown))

在我的 venv 中，我检查了 libmp3lame.0.dylib 是否存在，它确实存在。 我怀疑这可能是我的 pygame 安装有问题，所以我重新安装了库。 没有运气。 作为参考，我正在使用：

• MacOS 10.14（莫哈韦沙漠）
• Python 3.9.6
• Pygame 2.4.0
• 维纳斯
• Pycharm

Answer 1

这是 pygame 构建配置中的错误。

幸运的是，它已在 pygame-ce（pygame 社区版）中修复，这是 pygame 的现代社区分支。

Pygame-ce 完全向后兼容 pygame，并具有一些附加功能（并且此错误已修复）。 您甚至还可以导入为 pygame。

尝试pip uninstall pygame然后pip install pygame-ce --pre （pre 标志是必需的，因为错误修复目前仅在开发版本中）

Answer 2

# Import pygame module import pygame
# Initialize pygame pygame.init()
# Create a screen with width 800 and height 600 
screen = pygame.display.set_mode((800, 600)) 
# Set the title and icon of the window 
pygame.display.set_caption("Flappy Bird")
icon = pygame.image.load("bird.png") 
pygame.display.set_icon(icon) 
# Load the background image 
background = pygame.image.load("background.png") 
# Load the bird image and set its initial position and velocity 
bird = pygame.image.load("bird.png") 
bird_x = 100 
bird_y = 300 
bird_y_change = 0 
# Load the pipe images and set their initial positions and velocities 
pipe_up = pygame.image.load("pipe_up.png") 
pipe_down = pygame.image.load("pipe_down.png") 
pipe_x = 800 
pipe_y = 0 
pipe_x_change = -4 
# Define a function to check collision between the bird and the pipes 
def is_collision(bird_x, bird_y, pipe_x, pipe_y): 
    # Get the dimensions of the bird and the pipes 
    bird_width = bird.get_width()
    bird_height = bird.get_height()
    pipe_width = pipe_up.get_width()
    pipe_height = pipe_up.get_height()
    # Calculate the gaps between the bird and the pipes 
   gap_x = abs(bird_x - pipe_x) 
   gap_y = abs(bird_y - pipe_y) 
   # If the gaps are smaller than the dimensions, there is a collision
   if gap_x < bird_width and gap_y < pipe_height:
       return True 
   else: 
       return False
# Define a variable to store the score and a font to render it 
score = 0 
font = pygame.font.Font("freesansbold.ttf", 32)
# Define a function to display the score on the screen
def show_score():
   # Render the score as a text object 
   score_text = font.render("Score: " + str(score), True, (255, 255, 255)) 
   # Blit the text object on the top left corner of the screen 
   screen.blit(score_text, (10, 10)) 
# Create a game loop that runs until the user quits 
running = True 
while running: 
    # Fill the screen with the background image 
    screen.blit(background, (0, 0)) 
    # Loop through all the events in pygame 
    for event in pygame.event.get():
        # If the event is QUIT, set running to False to exit the loop 
        if event.type == pygame.QUIT: 
            running = False 
        # If the event is KEYDOWN, check which key is pressed 
        if event.type == pygame.KEYDOWN:
            # If the key is SPACE, set the bird's velocity to -6 to make it jump 
            if event.key == pygame.K_SPACE: 
                bird_y_change = -6 
        # If the event is KEYUP, check which key is released 
        if event.type == pygame.KEYUP: 
            # If the key is SPACE, set the bird's velocity to 3 to make it fall 
            if event.key == pygame.K_SPACE: 
            bird_y_change = 3 
        # Update the bird's position by adding its velocity 
        bird_y += bird_y_change
        # Check if the bird goes out of bounds and end the game if so 
        if bird_y < 0 or bird_y > 550: 
            running = False 
        # Update the pipe's position by adding its velocity 
        pipe_x += pipe_x_change 
        # Check if the pipe goes out of bounds and reset its position and increase the score if so 
        if pipe_x < -50: 
            pipe_x = 800 
        pipe_y = random.randint(-300, 0) 
        score += 1 
        # Check if there is a collision between the bird and any of the pipes and end the game if so 
        if is_collision(bird_x, bird_y, pipe_x, pipe_y) or is_collision(bird_x, bird_y, pipe_x, pipe_y + 450): 
            running = False 
        # Blit the bird and the pipes on the screen 
        screen.blit(bird, (bird_x, bird_y))
        screen.blit(pipe_up, (pipe_x, pipe_y)) 
        screen.blit(pipe_down, (pipe_x, pipe_y + 450)) 
        # Display the score on the screen 
        show_score() 
        # Update the display with all the changes 
        pygame.display.update() 

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