save project

snake.py

@@ -8,17 +8,43 @@ position=[(180,90),(180,120),(210,120),(x,y)]
 # 创建一个窗口
 screen = pygame.display.set_mode((660, 480))
 FPSCLOCK=pygame.time.Clock()
+setheading="right"
 # 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')
-
+down = pygame.image.load("down.png")
+left = pygame.image.load('left.png')
+right = pygame.image.load('right.png')
+up = pygame.image.load("up.png")
 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 in pygame.event.get():
+            if event.key ==locals.K_LEFT and setheading != 'right':
+                setheading = 'left'
+                snake_head = 'left'
+            if event.key ==locals.K_UP and setheading != 'down':
+                setheading = 'up'
+                snake_head = 'up'
+            if event.key ==locals.K_RIGHT and setheading != 'left':
+                setheading = 'right'
+                snake_head = 'right'
+            if event.key ==locals.K_DOWN and setheading != 'up':
+                setheading = 'down'
+                snake_head = 'down'
+        if setheading =='right':
+            x+=30
+        if setheading =='left':
+            x-=30        
+        if setheading =='down':
+            y+=30
+        if setheading =='up':
+            y-=30        
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇画上去