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snake.py

@@ -6,27 +6,44 @@ pygame.init()
 
 # 创建一个窗口
 screen = pygame.display.set_mode((660, 480))
-
+fs = pygame.time.Clock()
 # 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')
 
+x,y = 240, 120
+position =[(180, 90),(180, 120),(210, 120),(x,y)]
+setheding  =  '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()
+        if event.type == locals.KEYDOWN:
+            if event.key == locals.K_RIGHT and setheding !='left':
+                setheding  =  'right'
+            if event.key == locals.K_LEFT and setheding !='left':
+                setheding  =  'left'
+            if event.key == locals.K_UP and setheding !='left':
+                setheding  =  'up'
+            if event.key == locals.K_DOWN and setheding !='left':
+                setheding  =  'down'
+    if setheding  =  'up'     
     # 将背景图画上去
+    x += 30
+    position.append((x,y))
+    position.pop(0)
     screen.blit(background, (0, 0))
     # 将贪吃蛇画上去
-    screen.blit(right, (240, 120))
+    screen.blit(right,position[-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(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()
+    fs.tick(3)
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