save project

snake.py

@@ -9,7 +9,7 @@ pygame.init()
 screen = pygame.display.set_mode((660, 480))
 FPSCLOCK = pygame.time.Clock()  # pygame时钟，控制游戏速度（帧数）
 
-# 背景
+
 background = pygame.image.load('bg.png')
 right = pygame.image.load('right.png')      # 头 朝右
 food = pygame.image.load('apple.png')       # 食物 苹果
@@ -27,7 +27,7 @@ apple_y=330
 
 setheading = "right"
 snake_head = right
-
+score=0
 while True:
     for event in pygame.event.get():
         if event.type == locals.QUIT:
@@ -57,7 +57,16 @@ while True:
     else:
         y += 30
     position.append((x, y))
+
+    if x==apple_x and y==apple_y:
+        a=randint(1,22)
+        b=randint(1,16)  
+        apple_x=a*30-30
+        apple_y=b*30-30
+    else:
         position.pop(0)
+    if x>630 or x<0 or y>450 or y<0:
+        exit()
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇的头画上去
@@ -67,11 +76,10 @@ while True:
         screen.blit(body, position[i])
 
     # 将果实画上去
-    screen.blit(food, (360, 300))
-
+    screen.blit(food, (apple_x, apple_y))
     info = "Score:"+str(score)
     text = my_font.render(info,True,(0,0,0))
     screen.blit(text,(540,10))
     # 刷新画面
     pygame.display.update()
-    FPSCLOCK.tick(3)
\ No newline at end of file
+    FPSCLOCK.tick(5)
\ No newline at end of file