ParticleSystem.isPlaying

Description

Determines whether the Particle System is playing.

isPlaying is true from when the Particle System begins to play until its last live particle dies. isPlaying is false when the Particle System is no longer spawning particles and is not simulating any live particles. (Read Only).

using UnityEngine;

// A particle sprite example of isPlaying. A button is created
// that shows whether the Particle System is running.  If not, then
// it can be started.  If it is running then it can be stopped.

using UnityEngine;

[RequireComponent(typeof(ParticleSystem))]
public class ExampleClass : MonoBehaviour
{
    public Texture2D tex;
    private ParticleSystem ps;
    private Sprite sprite;

    void Start()
    {
        ps = GetComponent<ParticleSystem>();
        sprite = Sprite.Create(tex, new Rect(0.0f, 0.0f, tex.width, tex.height), Vector2.zero);

        var textureSheetAnimation = ps.textureSheetAnimation;
        textureSheetAnimation.enabled = true;
        textureSheetAnimation.mode = ParticleSystemAnimationMode.Sprites;
        textureSheetAnimation.AddSprite(sprite);
    }

    void OnGUI()
    {
        if (ps.isPlaying)
        {
            if (GUI.Button(new Rect(10, 70, 150, 50), "Stop and clear"))
            {
                ps.Stop(true, ParticleSystemStopBehavior.StopEmittingAndClear);
            }
        }
        else
        {
            if (GUI.Button(new Rect(10, 70, 150, 50), "Play"))
            {
                ps.Play(false);
            }
        }
    }
}