| ps | 粒子系统。 |
| type | 为其返回大小的触发器的类型。 |
int 具有此触发器事件类型的粒子数。
与 ParticleSystem.GetTriggerParticles 一起使用的安全数组大小。
这可保证足够大，以便与 ParticleSystem.GetTriggerParticles 一起用于当前帧。不过对于某些 GameObject，GetTriggerParticles 返回的元素可能较少。
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