edx/assignment9final/Assets/Standard Assets/Utility/ParticleSystemDestroyer.cs
2022-11-10 21:56:29 -03:00

63 lines
1.7 KiB
C#
Executable File

using System;
using System.Collections;
using UnityEngine;
using Random = UnityEngine.Random;
namespace UnityStandardAssets.Utility
{
public class ParticleSystemDestroyer : MonoBehaviour
{
// allows a particle system to exist for a specified duration,
// then shuts off emission, and waits for all particles to expire
// before destroying the gameObject
public float minDuration = 8;
public float maxDuration = 10;
private float m_MaxLifetime;
private bool m_EarlyStop;
private IEnumerator Start()
{
var systems = GetComponentsInChildren<ParticleSystem>();
// find out the maximum lifetime of any particles in this effect
foreach (var system in systems)
{
m_MaxLifetime = Mathf.Max(system.main.startLifetime.constant, m_MaxLifetime);
}
// wait for random duration
float stopTime = Time.time + Random.Range(minDuration, maxDuration);
while (Time.time < stopTime || m_EarlyStop)
{
yield return null;
}
Debug.Log("stopping " + name);
// turn off emission
foreach (var system in systems)
{
var emission = system.emission;
emission.enabled = false;
}
BroadcastMessage("Extinguish", SendMessageOptions.DontRequireReceiver);
// wait for any remaining particles to expire
yield return new WaitForSeconds(m_MaxLifetime);
Destroy(gameObject);
}
public void Stop()
{
// stops the particle system early
m_EarlyStop = true;
}
}
}