save project

snake.py

@@ -9,23 +9,50 @@ screen = pygame.display.set_mode((660, 480))
 x,y=240,120
 list=[(210, 120),(180, 120),(180, 90),(x,y)]
 # 背景
+#snak_head="right"
+#snak=right
 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')
+snak_head="right"
+snak=right
 redfrtt=pygame.time.Clock()
 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()
+        elif event.type==locals.KEYDOWN:
+            if event.key==locals.K_RIGHT and snak_head!="left":
+                snak_head="right"
+                snak=right
+            if event.key==locals.K_UP and snak_head!="down":
+                snak_head="up"
+                snak=up
+            if event.key==locals.K_DOWN and snak_head!="up":
+                snak_head="down"
+                snak=down
+            if event.key==locals.K_LEFT and snak_head!="right":
+                snak_head="left"
+                snak=left
+    if snak_head=='left':
+        x-=30
+    if snak_head=='right':
         x+=30
+    if snak_head=='up':
+        y-=30
+    if snak_head=='down':
+        y+=30
     list.append((x,y))
     list.pop(0)
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇画上去
-    screen.blit(right, list[-1])
+    screen.blit(snak, list[-1])
     # 将贪吃蛇的身体画上去
     for i in range(len(list)-1):
         screen.blit(body,list[i])