save project

snake.py

@@ -3,24 +3,36 @@ from pygame import locals
 
 # 初始化pygame，为使用硬件做准备
 pygame.init()
-FPSCLOCK = pygame.time.Clock()
-
+FPSCLOCK=pygame.time.Clock()
+x=240
+y=120
 # 创建一个窗口
-screen = pygame.display.set_mode((660, 480))
 position = [(180,90),(180,120),(210,120),(240,120)]
+screen = pygame.display.set_mode((660, 480))
+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')
-x,y = 240,120
+
 
 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.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"
     x = x + 30
     position.append((x,y))
     position.pop(0)