save project

my_game.py

@@ -32,6 +32,7 @@ y = 400
 jumpState = "runing"
 t = 30
 aa=Block(bush,cacti,stone)
+block_list=pygame.sprite.Group
 
 while True:
     for event in pygame.event.get():
@@ -77,8 +78,18 @@ while True:
     if obstacle.rect.x <= 0-aa.rect.width:      
         obstacle=Block(bush,cacti,stone)
     obstacle.rect.x -= 8
-
-    screen.blit(obstacle.image, (obstacle.rect.x, aa.rect.y)) 
+    time+=1
+    if time >=60:
+        r=random.randint(0,100)
+        if r>40:
+            obstacle=Block(bush,cacti,stone)
+            block_list.add(obstacle)
+        time=0
+    for prop in block_list:
+        porp.rect.x-=0
+        screen.blit(prop.image, (prop.rect.x, prop.rect.y)) 
+        if prop.rect.x<0-prop.rect.width
+            prop.kill()
     # 刷新画面
     pygame.display.update()
     FPS.tick(60)
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