save project

snake.py

@@ -19,13 +19,34 @@ down = pygame.image.load('down.png')
 
 x,y=240,120
 position[(180,90),(180,120),(210,120),(x,y)]
-
+setheading="light"
+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()
-    x+=30
+        elif event.type==locals.KEYDOWN
+            if event.key==locals.K_RIGHT and setheading!="left"
+                setheading="right"
+                snake_head=right
+            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_DOWN and setheading!="up"
+                setheading="down"
+                snake_head=down    
+    if setheading=="right"
+        x+=30
+    elif setheading=="left"
+        x-=30
+    elif setheading=="up"
+        y-=30
+    elif setheading=="down"
+        y+=30
     position.append((x,y))
     position.pop(0)
     # 将背景图画上去
@@ -34,7 +55,7 @@ while True:
     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[-1])
+        screen.blit(body, position[-1])
     
     # 将果实画上去
     screen.blit(food, (360, 300))