auto save

snake.py

@@ -9,26 +9,57 @@ screen = pygame.display.set_mode((660, 480))
 
 x,y=240,120
 a=pygame.time.Clock()
+c=[(180, 90),(180, 120),(210, 120),(x,y)]
 # 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')
+left = pygame.image.load('left.png')
+up = pygame.image.load('up.png')
+down= pygame.image.load('down.png')
+
+setheading="right"
+snake_head=right
 
 while True:
-    x+=30
     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_RIGHT and setheading!='left':
+                setheading="right"
+                snake_head=right
+            if event.key==locals.K_LEFT and setheading!='right':
+                setheading="left"
+                snake_head=left
+            if event.key==locals.K_UP and setheading!='down':
+                setheading="up"
+                snake_head=up
+            if event.key==locals.K_DOWN and setheading!='up':
+                setheading="down"
+                snake_head=down
+    if setheading=='right':
+        x+=30
+    elif setheading=='left':
+        x-=30
+    elif setheading=='up':
+        y-=30
+    else:
+        y+=30
+    c.append((x,y))
+    c.pop(0)
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇画上去
-    screen.blit(right, (x,y))
+    screen.blit(snake_head, c[-1])
     # 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))
+    for i in range(len(c)-1):
+        screen.blit(body, c[i])
+    # screen.blit(body, (210, 120))
+    # screen.blit(body, (180, 120))
+    # screen.blit(body, (180, 90))
     # 将果实画上去
     screen.blit(food, (360, 300))
     # 刷新画面