灭火，粒子碰撞

1.创建粒子系统：火 2.创建脚本 /// /// 灭火 ///

public ParticleSystem pa;//粒子系统 public Text text;//粒子系统的提示 // Use this for initialization void Start () { pa.startSize = 2;//设置初始粒子大小为2 } // Update is called once per frame void Update () { } //火焰被碰撞时 void OnParticleCollision(GameObject other) { Debug.Log("我是" + other.name); // if (other.tag == "WaterFall_") // { Debug.Log("灭火开始"); if (pa.startSize > 0) { pa.startSize -= 0.02f; text.text = "灭火开始"; } else if (pa.startSize <= 0) { text.text = "灭火结束"; } //}