save project

snake.py

@@ -14,11 +14,21 @@ 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"
 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_DOWN and setheading != "up":
+                setheading = "down"
+            if event.key == locals.K_UP and setheading != "down":
+                setheading = "up"
+            if event.key == locals.K_RIGHT and setheading != "left":
+                setheading = "right"
+            if event.key == locals.K_LEFT and setheading != "right":
+                setheading = "left"
     x +=30
     x +=30
     position.append((x,y))
     position.append((x,y))
     position.pop(0)
     position.pop(0)
@@ -34,6 +44,7 @@ while True:
     # screen.blit(body, (180, 90))
     # screen.blit(body, (180, 90))
     # 将果实画上去
     # 将果实画上去
     screen.blit(food, (360, 300))
     screen.blit(food, (360, 300))
+    
     # 刷新画面
     # 刷新画面
     pygame.display.update()
     pygame.display.update()
     FPSCLOCk.tick(3)
     FPSCLOCk.tick(3)
\ No newline at end of file