save project

snake.py

@@ -12,47 +12,29 @@ 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')
 x,y=240,120
 position=[(180,90),(180,120),(210,120),(x,y)]
-setheading = "right"
-snake_head = right
+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()
         if event.type == locals.KEYDOWN:
-                    print(event.type)
-
-
-            if event.type == locals.K_RIGHT and setheading != 'left':
-                setheading = 'right'
-            if event.type == locals.K_LEFT and setheading != 'right':
-                setheading = 'left'
-            if event.type == locals.K_UP and setheading != 'down':
-                print(333333)
+            if event.type == locals.K_UP and  setheading != 'down':
                 setheading = 'up'
-            if event.type == 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
+    if setheading == 'up':
+        y -= 30
 
     position.append((x,y))
     position.pop(0)
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇画上去
-    screen.blit(snake_head, (position[-1]))
+    screen.blit(right, (position[-1]))
     # 将贪吃蛇的身体画上去
     for i in range(len(position)-1):
         screen.blit(body,position[i])