auto save

snake.py

@@ -7,28 +7,56 @@ pygame.init()
 # 创建一个窗口
 screen = pygame.display.set_mode((660, 480))
 clock = pygame.time.Clock()
-x , y = 240, 120
+
 # 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')
+s_head = right
+x , y = 240, 120
+sethead = 'right'
 position = [(180, 90),(180, 120),(210, 120),(x, y)]
 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.type==locals.K_RIGHT and sethead !='left':
+                sethead = 'right'
+                s_head = right
+            if event.type==locals.K_LEFT and sethead !='right':
+                sethead = 'left'
+                s_head = left
+            if event.type==locals.K_UP and sethead !='down':
+                sethead = 'up'
+                s_head = up
+            if event.type==locals.K_DOWN and sethead !='up':
+                sethead = 'down'
+                s_head = down
+    if sethead == 'right':
         x += 30
+    elif sethead == 'left':
+        x -= 30
+    elif sethead == 'up':
+        y -= 30
+    elif sethead == '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])
+    screen.blit(s_head, 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