auto save

snake.py

 import pygame
 import pygame
-from pygame import locals
-
-# 初始化pygame，为使用pygame做准备
-pygame.init()
-FPSCLOCK = pygame.time.Clock()
-# 创建一个窗口
-screen = pygame.display.set_mode((660,480),0,32)
-background = pygame.image.load("bg.png")
-apple = pygame.image.load("apple.png")
-body = pygame.image.load("body.png")
-down = pygame.image.load("down.png")
-left = pygame.image.load("left.png")
-right = pygame.image.load("right.png")
-
-x, y = 240,120
-
-while True:
-    for event in pygame.event.get():
-        print(event)
-        if event.type == locals.QUIT:
-            exit()
+import random
+ 
+caption_width = 500  #画布宽度
+caption_height = 500 #画布高度
+white_color = (255, 255, 255) # 白色rgb
+black_color = (0, 0, 0)
+game_title = '蛇蛇兄弟'
+cell = 10 # 格子
+snake_init_pos = [[250,250], [240,250], [230,250], [220,250]] # 蛇的初始位置
+food_pos = [random.randrange(1, 50) * 10, random.randrange(1, 50) * 10] # 食物初始随机位置
+head_pos = [250, 250]
+ 
+pygame.init() # 初始化 pygame
+clock = pygame.time.Clock()
+ 
+caption = pygame.display.set_mode((caption_width, caption_height))
+pygame.display.set_caption(game_title)
+ 
+def draw_rect(color, position):
+    pygame.draw.rect(caption, color, pygame.Rect(position[0], position[1], cell, cell))
+ 
+def hit_the_self():
+    if snake_init_pos[0] in snake_init_pos[1:]:
+        return True
+    else:
+        return False
+ 
+def hit_the_wall(head_pos):
+    if head_pos[0] >= caption_width or head_pos[0]<0 or head_pos[1] >= caption_height or head_pos[1] < 0:
+        return True
+    else:
+        return False
+ 
+def change_direction(head_pos):
+    global food_pos
+    snake_init_pos.insert(0, list(head_pos))
+ 
+    if head_pos != food_pos:
+        snake_init_pos.pop()
+    else:
+        food_pos = [random.randrange(1, 50) * 10, random.randrange(1, 50) * 10]
+ 
+    if hit_the_self() or hit_the_wall(head_pos):
+        # 给我死
+        pygame.quit()
+ 
+ 
+def main():
+    for pos in snake_init_pos:
+        draw_rect(white_color, pos)
+ 
+    draw_rect(white_color, food_pos)
     pygame.display.update()
     pygame.display.update()
+ 
+    while 1:
+        for event in pygame.event.get():
+            if event.type == pygame.QUIT:
+                pygame.quit()
+            if event.type == pygame.KEYDOWN:
+                if event.key == pygame.K_LEFT:
+                    head_pos[0] -= cell
+                    change_direction(head_pos)
+                elif event.key == pygame.K_RIGHT:
+                    head_pos[0] += cell
+                    change_direction(head_pos)
+                elif event.key == pygame.K_UP:
+                    head_pos[1] -= cell
+                    change_direction(head_pos)
+                elif event.key == pygame.K_DOWN:
+                    head_pos[1] += cell
+                    change_direction(head_pos)
+ 
+        caption.fill(black_color)
+        draw_rect(white_color, food_pos)
+ 
+        for pos in snake_init_pos:
+            draw_rect(white_color, pos)
+ 
+        pygame.display.update()
+        clock.tick(300)
+ 
+ 
+ 
+if __name__ == '__main__':
+    main()
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