save project

snake.py

@@ -14,13 +14,44 @@ 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.laod('left.pnt')
+up=pygame.image.laod('up.pnt')
+down=pygame.image.laod('down.pnt')
+
+
+
 x,y = 240,120
 position=[(180,90),(180,120),(210,120),(x,y)]
+
+setheading="right"
+snake_head=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()
+        elif event.type==locals.KEYDOWN:
+            if event.key==locals K_RIGHT and setheading !="right":
+                setheading='right'
+                setheading=right
+            if event.key==locals K_LEFT and setheading !="left":
+                setheading='left'
+                setheading=left
+            if event.key==locals K_DOWN and setheading !="down":
+                setheading='down'
+                setheading=down
+                if event.key==locals K_UP and setheading !="up":
+                setheading='up'
+                setheading=up
+    if setheading=="right":
+        x += 30
+    elif setheading=="left":
+        x -= 30
+    elif setheading=="up":
+        x -= 30 
+    elif setheading=="down":
+        x -= 30  
     x  += 30
     position.append((x,y))
     position.pop(0)