save project

snake.py

@@ -16,15 +16,27 @@ x=240
 y=120
 y=120
 positon=[(180,90),(180,120),(210,120),(x,y)]
 positon=[(180,90),(180,120),(210,120),(x,y)]
 FPSCLOCK=pygame.time.Clock()
 FPSCLOCK=pygame.time.Clock()
-
+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()
-
-    # 将背景图画上去
+        if event.type == locals.KEYDOWN:
+            if event.key==locals.K_RIGHT and setheading!="left":
+                setheading="right"
+                x += 30
+            if event.key==locals.K_LEFT and setheading!="right":
+                setheading="left"
+                x -= 30
+            if event.key==locals.K_UP and setheading!="down":
+                setheading="up"
+                y -= 30
+            if event.key==locals.K_DOWN and setheading!="up":
+                setheading="down"
+                y +=30
+    positon.append((x,y))
+    positon.pop(0)
     screen.blit(background, (0, 0))
     screen.blit(background, (0, 0))
     # 将贪吃蛇画上去
     # 将贪吃蛇画上去
     screen.blit(right, positon[-1])
     screen.blit(right, positon[-1])
@@ -33,9 +45,6 @@ while True:
         screen.blit(body, positon[i])
         screen.blit(body, positon[i])
     # 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
-    positon.append((x,y))
-    positon.pop(0)
     pygame.display.update()
     pygame.display.update()
     FPSCLOCK.tick(3)
     FPSCLOCK.tick(3)
     
     
\ No newline at end of file