save project

snake.py

@@ -7,6 +7,8 @@ pygame.init()
 # 创建一个窗口
 screen = pygame.display.set_mode((660, 480))
 
+M=pygame.time.Clock()
+
 # 背景
 background = pygame.image.load('bg.png')
 right = pygame.image.load('right.png')
@@ -15,21 +17,47 @@ body = pygame.image.load('body.png')
 
 x,y=240,120
 
+ZQ=[(180,90),(180,120),(210,120),(x,y)]
+
+setheading="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        
+        if event.type==locals.KEYDOWN:
+           if event.key==locals.K_RIGHT and setheading !="left":
+               setheading ="right"
+           if event.key==locals.K_LEFT and setheading !="right":
+               setheading ="left"
+           if event.key==locals.K_UP and setheading !="down":
+               setheading ="up"
+           if event.key==locals.K_DOWN and setheading !="up":
+               setheading ="down"
+    if  setheading =="right" :
+        x+=30 
+    elif setheading =="left" :
+        x-=30 
+    elif  setheading =="up" :
+        y-=30 
+    else:  
+        y+=30 
+
+    ZQ.append((x,y))    
+    ZQ.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(right, ZQ[-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(ZQ)-1):
+        screen.blit(body,ZQ[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
-    pygame.display.update()
\ No newline at end of file
+    pygame.display.update()
+    M.tick(3)
\ No newline at end of file