auto save

snake.py

@@ -12,27 +12,50 @@ 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')
 x,y=240,120
 position=[(180,90),(180,120),(210,120),(x,y)]
+setheading="right"
+snake_head=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()
-    x+=30
-    position.append((x,y))
-    position.pop(0)
-    # 将背景图画上去
-    screen.blit(background, (0, 0))
-    # 将贪吃蛇画上去
-    screen.blit(right, position[-1])
-    # 将贪吃蛇的身体画上去
-     for i in range(len(position)-1):
-         screen.blit(body, position[i])
-    # 将果实画上去
-    screen.blit(food, (360, 300))
-    # 刷新画面
-    pygame.display.update()
-    FPSCLOCK.tick(3)
+        elif event.type==locals.KEYDOWN
+            if event.key==K_RIGHI and setheading!="left":
+                setheading="right"
+                snake_head=right
+            if event.key==K_LEFT and setheading!="right":
+                setheading="left"
+                snake_head=left
+            if event.key==K_UP and setheading!="down":
+                setheading="up"
+                snake_head=up
+            if event.key==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
+            elif setheading=="down"
+                y+=30
+            position.append((x,y))
+            position.pop(0)
+            # 将背景图画上去
+            screen.blit(background, (0, 0))
+            # 将贪吃蛇画上去
+            screen.blit(right, position[-1])
+            # 将贪吃蛇的身体画上去
+            for i in range(len(position)-1):
+                screen.blit(body, position[i])
+            # 将果实画上去
+            screen.blit(food, (360, 300))
+            # 刷新画面
+            pygame.display.update()
+            FPSCLOCK.tick(3)