格式化

game_functions.py

@@ -59,6 +59,7 @@ def show_end(settings, screen):
     pygame.time.wait(1500)
     settings.game_mode = 0
 
+
 def draw_grid(settings, screen):
     # 绘制横向线
     for x in range(0, settings.width, settings.cell_size):
@@ -67,33 +68,42 @@ def draw_grid(settings, screen):
     for y in range(0, settings.height, settings.cell_size):
         pygame.draw.line(screen, (40, 40, 40), (0, y), (settings.width, y))
 
+
 def update_screen(settings, screen):
     screen.fill(settings.bg_color)
     draw_grid(settings, screen)
 
 # 绘制蛇
+
+
 def draw_snake(ai_settings, screen, snake):
     # 头部用白色
     x = snake.coords[0]['x'] * ai_settings.cell_size
     y = snake.coords[0]['y'] * ai_settings.cell_size
-	snake_head_rect = pygame.Rect(x, y, ai_settings.cell_size, ai_settings.cell_size)
+    snake_head_rect = pygame.Rect(
+        x, y, ai_settings.cell_size, ai_settings.cell_size)
     pygame.draw.rect(screen, (255, 255, 255), snake_head_rect)
     # 蛇身内部用浅绿，外框用深绿
     for coord in snake.coords[1: -1]:
         x = coord['x'] * ai_settings.cell_size
         y = coord['y'] * ai_settings.cell_size
-		snake_part_rect = pygame.Rect(x, y, ai_settings.cell_size, ai_settings.cell_size)
+        snake_part_rect = pygame.Rect(
+            x, y, ai_settings.cell_size, ai_settings.cell_size)
         pygame.draw.rect(screen, (0, 155, 0), snake_part_rect)
-		snake_part_inner_rect = pygame.Rect(x + 4, y + 4, ai_settings.cell_size - 8, ai_settings.cell_size - 8)
+        snake_part_inner_rect = pygame.Rect(
+            x + 4, y + 4, ai_settings.cell_size - 8, ai_settings.cell_size - 8)
         pygame.draw.rect(screen, (0, 255, 0), snake_part_inner_rect)
     # 蛇尾用浅绿
     coord = snake.coords[-1]
     x = coord['x'] * ai_settings.cell_size
     y = coord['y'] * ai_settings.cell_size
-	snake_tail_rect = pygame.Rect(x, y, ai_settings.cell_size, ai_settings.cell_size)
+    snake_tail_rect = pygame.Rect(
+        x, y, ai_settings.cell_size, ai_settings.cell_size)
     pygame.draw.rect(screen, (0, 255, 0), snake_tail_rect)
 
 # 绘制游戏界面
+
+
 def update_screen(settings, screen, snake):
     screen.fill(settings.bg_color)
     draw_grid(settings, screen)
@@ -108,6 +118,7 @@ def update_screen(settings, screen, snake):
         # 暂停一下
         settings.my_clock.tick(settings.clock_frq)
 
+
 def is_game_over(settings, snake):
     # 碰到左右墙壁
     if (snake.coords[snake.head_index]['x'] == -1 or snake.coords[snake.head_index]['x'] == settings.cell_w):

main.py

@@ -11,10 +11,12 @@ pygame.display.set_caption('贪吃蛇')
 # 创建蛇
 snake = Snake(settings)
 
+
 def run_game1():
     gf.check_play_events(snake)
     gf.update_screen(settings, screen, snake)
 
+
 def run_game():
     while True:
         if settings.game_mode == 0:
@@ -25,6 +27,7 @@ def run_game():
         elif settings.game_mode == 1:
             run_game1()
 
+
 if __name__ == "__main__":
     pygame.init()
     run_game()

settings.py

@@ -1,6 +1,7 @@
 import pygame
 import sys
 
+
 class Settings:
     def __init__(self):
         self.bg_color = (0, 0, 0)  # 背景颜色

snake.py

@@ -1,5 +1,6 @@
 import random
 
+
 class Snake():
     def __init__(self, settings):
         self.reset(settings)
@@ -19,6 +20,7 @@ class Snake():
     # 更新蛇，每次蛇移动一步，因此相当于每次移动在蛇的坐标字典中再插入一个新蛇头
     # 按常识，每次移动后，不仅仅是蛇头向前移动一个，更重要的是蛇尾也要向前移，但是在该函数中先不处理蛇尾
     # 因为如果蛇吃了食物，此时蛇尾其实并没有移动
+
     def update(self):
         newHead = {}
         # 根据移动方向确定蛇头
@@ -35,4 +37,3 @@ class Snake():
             newHead = {'x': self.coords[self.head_index]['x'] + 1,
                        'y': self.coords[self.head_index]['y']}
         self.coords.insert(0, newHead)
-