save project

snake.py

@@ -14,12 +14,35 @@ food = pygame.image.load('apple.png')
 body = pygame.image.load('body.png')
 body = pygame.image.load('body.png')
 x,y = 240,120
 x,y = 240,120
 position = [(180,90),(180,120),(210,120),(x,y)]
 position = [(180,90),(180,120),(210,120),(x,y)]
+
+setheadaing = "right"
+snake_head = right
 while True:
 while True:
     for event in pygame.event.get():
     for event in pygame.event.get():
         if event.type == locals.QUIT:
         if event.type == locals.QUIT:
             # 接收到退出事件后退出程序
             # 接收到退出事件后退出程序
             exit()
             exit()
-    x+=30
+        if event.type == locals.KEYDOWN:
+            if event.key == locals.K_RIGHT and setheadaing !="right":
+                setheadaing = 'right' 
+                snake_head = right
+            if event.key == locals.K_UP and setheadaing != "right"
+                setheadaing = 'left'
+                snake_head = left
+            if event.key == locals.K_UP and setheadaing != "down":
+                setheadaing = 'up'
+                snake_head = up
+            if event.key == locals.K_UP and setheadaing != "up":
+                setheadaing = 'down'
+                snake_head = down
+    if setheadaing == "right":
+         x += 30
+    elif setheadaing =="left":
+        x -= 30
+    elif setheadaing =="up":
+        y -= 30
+    else:
+        y += 30             
     position.append((x,y))        
     position.append((x,y))        
     # 将背景图画上去
     # 将背景图画上去