基于hge的粒子系统，比hge自带的粒子系统更实用，还带有粒子的路径编辑器。只有源码，没有测试用例，有兴趣的自己研究-Hge-based particle system, particle systems than hge own more practical, but also with the path of the particle editor. Only the source, there is no test case, are interested in their own res