思路就是：

有一个对象池，管理各种特效。

当需要播放特效时，触发如下代码：

blocker为粒子生成的位置

var particles = gamePools.iceParticlesPool.GetObject();
if (particles != null)
{particles.transform.position = blocker.transform.position;particles.GetComponent<TileParticles>().fragmentParticles.Play();
}

Prefab有两个脚本：

1. AutoKillPooled（用途是到了时间就自杀）

    public class AutoKillPooled : MonoBehaviour{public float time = 2.0f;private PooledObject pooledObject;private float accTime;/// <summary>/// Unity's OnEnable method./// </summary>private void OnEnable(){accTime = 0.0f;}/// <summary>/// Unity's Start method./// </summary>private void Start(){pooledObject = GetComponent<PooledObject>();}/// <summary>/// Unity's Update method./// </summary>private void Update(){accTime += Time.deltaTime;if (accTime >= time){pooledObject.pool.ReturnObject(gameObject);}}}

2. TileParticles（播放粒子）

TileParticles的脚本附在这个prefab上面，脚本内容如下：

    /// <summary>/// This class identifies the particles emitted when a tile entity is destroyed./// </summary>public class TileParticles : MonoBehaviour{public ParticleSystem fragmentParticles;/// <summary>/// Unity's Awake method./// </summary>private void Awake(){Assert.IsNotNull(fragmentParticles);}}

Fragement Particles为该prefab的子物体，上面有particles system组件。

因为particles system配置较复杂：这里直接上传prefab了

prefab下载地址

粒子prefabunity资源-CSDN文库