auto save

snake.py

@@ -6,27 +6,49 @@ pygame.init()
 
 # 创建一个窗口
 screen = pygame.display.set_mode((660, 480))
-
+fps=pygame.time.Clock()
 # 背景
 background = pygame.image.load('bg.png')
 right = pygame.image.load('right.png')
 food = pygame.image.load('apple.png')
 body = pygame.image.load('body.png')
-
+x,y=240,120
+p=[(180,90),(180,120),(210,120),(x,y)]
+s='right'
 while True:
     for event in pygame.event.get():
         if event.type == locals.QUIT:
-            # 接收到退出事件后退出程序
             exit()
+        if event.type == locals.KEYDOWN:
+            if event.key==locals.K_UP and s!='down':
+                s='up'
+            if event.key==locals.K_DOWN and s!='up':
+                s='down'
+            if event.key==locals.K_LEFT and s!='right':
+                s='left'
+            if event.key==locals.K_RIGHT and s!='left':
+                s='right'
+    if s=='up':
+        y-=30
+    if s=='down':
+        y+=30
+    if s=='right':
+        x+=30
+    if s=='left':
+        x-=30
+    
+
+    p.append((x,y))
+    p.pop(0)
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇画上去
-    screen.blit(right, (240, 120))
-    # 将贪吃蛇的身体画上去
-    screen.blit(body, (210, 120))
-    screen.blit(body, (180, 120))
-    screen.blit(body, (180, 90))
+    screen.blit(right,p[-1])
+    # 
+    for i in range(len(p)-1):
+        screen.blit(body,p[i])
     # 将果实画上去
     screen.blit(food, (360, 300))
     # 刷新画面
-    pygame.display.update()
\ No newline at end of file
+    pygame.display.update()
+    fps.tick(3)
\ No newline at end of file