auto save

day-2.py

@@ -12,20 +12,47 @@ background = pygame.image.load('bg.png')
 right = pygame.image.load('right.png')
 right = pygame.image.load('right.png')
 food = pygame.image.load('apple.png')
 food = pygame.image.load('apple.png')
 body = pygame.image.load('body.png')
 body = pygame.image.load('body.png')
+left = pygame.image.load('left.png')
+down = pygame.image.load('down.png')
+up = pygame.image.load('up.png')
 x,y = 240,120
 x,y = 240,120
 shenti=[(180,90),(180,120),(210,120),(x,y)]
 shenti=[(180,90),(180,120),(210,120),(x,y)]
+setheading= "right"
+shetofangxiang= right
 while True:
 while True:
     for event in pygame.event.get():
     for event in pygame.event.get():
         if event.type == locals.QUIT:
         if event.type == locals.QUIT:
             # 接收到退出事件后退出程序
             # 接收到退出事件后退出程序
             exit()
             exit()
-    x += 30
+        if event.type == locals.KEYDOWN:
+            if event.key==locals.K_RIGHT and setheading != "left":
+                setheading="right"
+                shetofangxiang=right
+            if event.key==locals.K_LEFT and setheading != "right":
+                setheading="left"
+                shetofangxiang= left
+            if event.key==locals.K_DOWN and setheading != "up":
+                setheading="down"
+                shetofangxiang= down
+            if event.key==locals.K_UP and setheading != "down":
+                setheading="up"
+                shetofangxiang=up
+
+    
+    if setheading=="right":
+        x += 30
+    if setheading=="left":
+        x -= 30
+    if setheading=="down":
+        y += 30
+    if setheading=="up":
+        y -= 30
     shenti.append((x,y))
     shenti.append((x,y))
     shenti.pop(0)
     shenti.pop(0)
     # 将背景图画上去
     # 将背景图画上去
     screen.blit(background, (0, 0))
     screen.blit(background, (0, 0))
     # 将贪吃蛇画上去
     # 将贪吃蛇画上去
-    screen.blit(right, shenti[-1])
+    screen.blit(shetofangxiang, shenti[-1])
     # 将贪吃蛇的身体画上去
     # 将贪吃蛇的身体画上去
     # screen.blit(body, (210, 120))
     # screen.blit(body, (210, 120))
     # screen.blit(body, (180, 120))
     # screen.blit(body, (180, 120))