save project

my_game.py

@@ -59,4 +59,15 @@ while True:
         screen.blit(abstacle(rect.x,rect.y))
     # 刷新画面
     pygame.display.update()
-    FPS.tick(60)
\ No newline at end of file
+    FPS.tick(60)
+    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:
+        prop.rect.x -= 8
+        screen.blit(prop.image,(prop.rect.x,prop.rect.y))
+        if prop.rect.x<=0-prop
\ No newline at end of file