How can I know the time to completion of a ParticleEffect

Question

Is there a way to get the time until completion of a ParticleEffect in libgdx? For example, say I want something to happen one second before the ParticleEffect completes:

private void foo(){
    ParticleEffect bombEffect = new ParticleEffect();
    bombEffect.load(Gdx.files.internal("particles/bomb.p"), atlas);
    .
    .
    .
    if(timeToCompletion(bombEffect) < 1){ 
        // do something
    }
    .
    .
    . 
}

private float timeToCompletion(ParticleEffect pEffect){
    // How can this be implemented??
}

score 0 · Answer 1 · answered Mar 20 '15 at 04:30

0

You know the duration of particle effect. Than you can count time in some variable. And than check if duration - thistime < 1. Maybe this is not the best solution, but it will work.

One more idea is to extend your own class from ParticleEffect and implement this functionality there, and you will be able to call something like yourEffect.getPassedTime ();

Hope this will be useful for you. Good luck.

answered Mar 20 '15 at 04:30

Aleksandrs

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1. How do I know the duration of the particle effect? 2. You are right. Once I understand how to do this, extending `ParticleEffect` is the better way to go. – asherbret Mar 20 '15 at 08:29
Particle effect has method setDuration. – Aleksandrs Mar 20 '15 at 08:38
That method sets the duration. There is no `getDuration` method. – asherbret Mar 20 '15 at 08:40
But if you can setDuration and you know when you fire your particles, then you can calculate time passed – Aleksandrs Mar 20 '15 at 08:44
I don't use `setDuration`. I'm using a particle editor to build the properties of the particle. Since the duration is random (between two `Min` and `Max` values) I don't know the exact duration of the particle when it is created. – asherbret Mar 20 '15 at 09:06
Oh ok, I understood. I'll think a while. – Aleksandrs Mar 20 '15 at 09:13

How can I know the time to completion of a ParticleEffect

1 Answers1