save project

snake.py

@@ -18,6 +18,7 @@ left = pygame.image.load('left.png')        # 头 朝左
 up = pygame.image.load('up.png')            # 头 朝上
 down = pygame.image.load('down.png')        # 头 朝下
 text = pygame.font.Font("neuropol.ttf",20)
+over = pygame.font.Font("neuropol.ttf",40)
 
 x, y = 240, 120
 position = [(180, 90), (180, 120), (210, 120), (x, y)]
@@ -60,10 +61,12 @@ while True:
         Score+=10
     else:
         position.pop(0)
+    if x>630 or x<0 or y>450 or y<0:
+        over_txt=over.render("Game Over",True,(0,0,0))
+        break
     out_score="Score:"+str(Score)
     # 将背景图画上去   
     screen.blit(background, (0, 0))
-    
     # 将果实画上去
     screen.blit(food, (apple_X,apple_Y))
     # 将贪吃蛇的头画上去
@@ -77,3 +80,7 @@ while True:
     # 刷新画面
     pygame.display.update()
     FPSCLOCK.tick(ticktime)
+screen.blit(over_txt,(175,200))
+for i in range(6):
+    pygame.display.update()
+    FPSCLOCK.tick(ticktime)
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