Version: 2022.2
LanguageEnglish
  • C#

ParticleSystem.Play

Suggest a change

Success!

Thank you for helping us improve the quality of Unity Documentation. Although we cannot accept all submissions, we do read each suggested change from our users and will make updates where applicable.

Close

Submission failed

For some reason your suggested change could not be submitted. Please <a>try again</a> in a few minutes. And thank you for taking the time to help us improve the quality of Unity Documentation.

Close

Cancel

Switch to Manual

Declaration

public void Play();

Declaration

public void Play(bool withChildren = true);

Parameters

withChildren Play all child Particle Systems as well.

Description

Starts the Particle System.

Sets the Particle Systems into play mode and enables emitting (if it has been disabled).

If the Particle System has been paused, then this resumes playing from the previous time.
If the Particle System has stopped, then the system starts from time 0, and, if it is relevant, the startDelay is applied. If the Particle System is already playing, the system continues to play and this function has no effect.

See Also: Stop, Pause, isEmitting functions.

The following example creates a GUI window for manipulating a Particle System.

using UnityEngine;

public class ParticleSystemControllerWindow : MonoBehaviour { ParticleSystem system { get { if (_CachedSystem == null) _CachedSystem = GetComponent<ParticleSystem>(); return _CachedSystem; } } private ParticleSystem _CachedSystem;

public Rect windowRect = new Rect(0, 0, 300, 120);

public bool includeChildren = true;

void OnGUI() { windowRect = GUI.Window("ParticleController".GetHashCode(), windowRect, DrawWindowContents, system.name); }

void DrawWindowContents(int windowId) { if (system) { GUILayout.BeginHorizontal(); GUILayout.Toggle(system.isPlaying, "Playing"); GUILayout.Toggle(system.isEmitting, "Emitting"); GUILayout.Toggle(system.isPaused, "Paused"); GUILayout.EndHorizontal();

GUILayout.BeginHorizontal(); if (GUILayout.Button("Play")) system.Play(includeChildren); if (GUILayout.Button("Pause")) system.Pause(includeChildren); if (GUILayout.Button("Stop Emitting")) system.Stop(includeChildren, ParticleSystemStopBehavior.StopEmitting); if (GUILayout.Button("Stop & Clear")) system.Stop(includeChildren, ParticleSystemStopBehavior.StopEmittingAndClear); GUILayout.EndHorizontal();

includeChildren = GUILayout.Toggle(includeChildren, "Include Children");

GUILayout.BeginHorizontal(); GUILayout.Label("Time(" + system.time + ")"); GUILayout.Label("Particle Count(" + system.particleCount + ")"); GUILayout.EndHorizontal(); } else GUILayout.Label("No Particle System found");

GUI.DragWindow(); } }