pygame 个与模式匹配兼容的事件

Question

我正在尝试对 pygame 事件使用模式匹配，但我得到 TypeError: called match pattern must be a type

请参阅下面的示例

import pygame
import pygame.event

a = pygame.event.Event(0)

def test_match(x):
    match x:
        case pygame.event.Event():
            print('Case Event()', x)
        case pygame.event.Event(type=pygame.USEREVENT):
            print('Case Event(pygame.USEREVENT)', x)
        case _:
            print('not an event')

test_match(a)

满输出

pygame 2.1.0 (SDL 2.0.16, Python 3.10.0)
Hello from the pygame community. https://www.pygame.org/contribute.html
Traceback (most recent call last):
  File "match_test.py", line 15, in <module>
    test_match(a)
  File "match_test.py", line 8, in test_match
    case pygame.event.Event():
TypeError: called match pattern must be a type

Answer 1

我们可以在模式匹配中使用pygame.event.EventType。

case pygame.event.EventType(type=pygame.USEREVENT):

pygame 个与模式匹配兼容的事件

pygame events compatible with pattern matching

python

pygame

pattern-matching