我需要在 pygame 中加载大约 200 个图像，以便在游戏中的各个点进行位块传输。我尝试为此编写一个函数，但总是回来NameError: name 'tomato' is not defined.
所有图像名称都是加载图像的变量存储的名称：tomato = pygame.image.load("tomato.png")
使用数组会更好吗，如果是的话我该怎么做？
代码：
def load(image):
imagename = image
imagetitle = str(imagename)+".png"
image = pygame.image.load(imagetitle)
return image
load("tomato")
def blit_f(fruit):
gamedisplay.blit(fruit,(0,0))
pygame.display.update()
fruitlist = []
running = False
while not running:
for event in pygame.event.get():
if event.type == pygame.QUIT:
running = True
if event.type == pygame.MOUSEMOTION:
mouse = pygame.mouse.get_pos()
color = screen.get_at(mouse)
if color == (209,0,0,255):
blit_f(tomato)
fruitlist.insert(0,"tomato")
if event.type == pygame.MOUSEBUTTONDOWN:
if fruitlist[0] == "tomato":
gamedisplay.blit(tomato,(0,0))
pygame.display.update()
仅当导致位块传送的条件时，才会发生 NameErrortomato.png满足：当我将鼠标悬停在番茄图像上时，即红色
如果我写load(tomato)而不是与""，当我运行代码时，NameError 就会出现，并突出显示load(tomato)代替gamedisplay.blit(tomato)至于与load("tomato").
如果你想加载这么多图像，请使用os.listdir https://docs.python.org/3/library/os.html#os.listdir并将目录中的所有图像放入字典中。另外，使用convert or convert_alpha加载图像后以提高性能。
def load_images(path_to_directory):
"""Load images and return them as a dict."""
image_dict = {}
for filename in os.listdir(path_to_directory):
if filename.endswith('.png'):
path = os.path.join(path_to_directory, filename)
key = filename[:-4]
image_dict[key] = pygame.image.load(path).convert()
return image_dict
如果您还想加载子目录中的所有图像，请使用os.walk:
def load_images(path_to_directory):
"""Load all images from subdirectories and return them as a dict."""
images = {}
for dirpath, dirnames, filenames in os.walk(path_to_directory):
for name in filenames:
if name.endswith('.png'):
key = name[:-4]
img = pygame.image.load(os.path.join(dirpath, name)).convert()
images[key] = img
return images
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