save project

snake.py

@@ -14,13 +14,31 @@ 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 = [(210, 120),(180, 120), (180, 90),(x, y)]
 position = [(210, 120),(180, 120), (180, 90),(x, y)]
+setheading ="right"
 while True:
 while True:
-    x+=30
     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"
+            if event.key==locals.K_LEFT and setheading != "right":
+                setheading ="left"
+            if event.key==locals.K_UP and setheading != "down":
+                setheading ="up"
+            if event.key==locals.K_DOWN and setheading != "up":
+                setheading ="down"
+
     # 将背景图画上去
     # 将背景图画上去
+    if setheading =="right":
+        x+=30
+    elif setheading =="left":
+        x-=30
+    elif setheading =="up":
+        y-=30
+    else:
+        y+=30
     position.append((x,y))
     position.append((x,y))
     position.pop(0)
     position.pop(0)