save project

my_game.py

@@ -86,14 +86,15 @@ while True:
     time+=1
     if time >=60:
         num=random.randint(0,50)
-        if num >=20:
+        if num >20:
             aa=Block(bush,cacti,stone)
             block_list.add(aa)
         time=0
-        for sprite in block_list:
-            screen.blit(sprite.image,(sprite.rect.x,sprite.rect.y))
-            if sprite.rect.x<=0-sprite.rect.width:
-                sprite.kill()
+    for sprite in block_list:
+        sprite.rect.x -= 8
+        screen.blit(sprite.image,(sprite.rect.x,sprite.rect.y))
+        if sprite.rect.x<=0-sprite.rect.width:
+            sprite.kill()
     
     #screen.blit(sprite.image, (sprite.rect.x, sprite.rect.y)) 
     # 刷新画面