为什么函数代码这样优化就不行?

相关截图：

war.py

mian.py

问题描述：

函数代码这样优化后始终无法运行，不知道为什么

相关代码：

war.py

import sys, pygame

import constants
from game.plane import Ourplane, Enemyplane

class Planewar(object):
    READY=0
    PLAYING=1
    OVER=2

    status=READY
    small_enemies = pygame.sprite.Group()
    enemies = pygame.sprite.Group()
    counter = 0

    def __init__(self):
        pygame.init()

        self.width, self.height = 480, 852
    
        self.screen = pygame.display.set_mode((self.width, self.height))

        self.bg = pygame.image.load(constants.bg_img)
        self.img_game_title = pygame.image.load(constants.game_title_img)
        self.img_game_title_rect = self.img_game_title.get_rect()
        t_width, t_height = self.img_game_title.get_size()
        self.img_game_title_rect.topleft = (int((self.width - t_width))/ 2, int(self.height / 2-t_height))
        self.btn_start = pygame.image.load(constants.game_start_img)
        self.btn_start_rect = self.btn_start.get_rect()
        btn_width, btn_height = self.btn_start.get_size()
        self.btn_start_rect.topleft =(int(self.width - btn_width) / 2), int(self.height / 2+btn_height)
        pygame.mixer.music.load(constants.bg_music)
        pygame.mixer.music.play(-1)
        pygame.mixer.music.set_volume(0.5)
        self.ourplane = Ourplane(self.screen, speed = 10)
        self.clock = pygame.time.Clock()
        for i in range(0, 6):
            self.plane = Enemyplane(self.screen, speed=5)
            self.plane.add(self.small_enemies, self.enemies)

    def loop(self):
        while True:
            self.counter += 1
            self.clock.tick(60)
            if self.counter >= 60:
                self.counter = 0

    def bind_event(self):
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                pygame.quit()
                sys.exit()
            elif event.type == pygame.MOUSEBUTTONDOWN:
                if self.status == self.READY:
                    self.status = self.PLAYING
            elif event.type == pygame.KEYDOWN:
                if self.status == self.PLAYING:
                    if event.key == pygame.K_w or event.key == pygame.K_UP:
                        self.ourplane.move_up()
                    elif event.key == pygame.K_a or event.key == pygame.K_LEFT:
                        self.ourplane.move_left()
                    elif event.key == pygame.K_d or event.key == pygame.K_RIGHT:
                        self.ourplane.move_right()
                    elif event.key == pygame.K_s or event.key == pygame.K_DOWN:
                        self.ourplane.move_down()
                    elif event.key == pygame.K_SPACE:
                        self.ourplane.shoot()

    def run_game(self):
        self.loop()
        self.bind_event()
        if self.status == self.READY:
            self.screen.blit(self.bg, self.bg.get_rect())
            self.screen.blit(self.img_game_title, self.img_game_title_rect)
            self.screen.blit(self.btn_start, self.btn_start_rect)

        elif self.status == 1:
            self.screen.blit(self.bg, self.bg.get_rect())
            self.ourplane.update(self.counter)
            self.ourplane.bullets.update()
            self.small_enemies.update()

        pygame.display.set_caption('飞机大战游戏')
        pygame.display.flip()
 

相关代码：

mian.py

​from game.war import Planewar


def main():
    War=Planewar()
    War.loop()
    War.bind_event()
    War.run_game()



if __name__ == "__main__":
    main()