save project

snake.py

@@ -14,13 +14,36 @@ 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)]
+
+setheading="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()
+        if event.type==locals.KEYDOWN:
+            if event.key==locals.K_RIGHT and setheading !="left":
+                setheading='right'
+                snake_head=right
+            if event.key==locals.K_RIGHT and setheading !="right":
+                setheading='left'
+                snake_head=left
+            if event.key==locals.K_RIGHT and setheading !="down":
+                setheading='up'
+                snake_head=up
+            if event.key==locals.K_RIGHT and setheading !="up":
+                setheading='down'
+                snake_head=down
     
     
-    x+=30
+    if setheading=="right":
+        x+=30
+    else setheading=="left"
+        x-=30
+    else setheading=="up"
+        y-=30
+    else:
+        y+=30
     position.append((x,y))
     position.append((x,y))
     position.pop(0)
     position.pop(0)
     # 将背景图画上去
     # 将背景图画上去