How to use

getNumVisibleParticles

method

in

com.jme3.effect.ParticleEmitter

@Override
protected void controlUpdate(float tpf) {
  if (remove) {
    emitter.removeControl(this);
    return;
  }
  if (emitter.getNumVisibleParticles() == 0) {
    emitter.setCullHint(CullHint.Always);
    emitter.setEnabled(false);
    emitter.removeControl(this);
    stopRequested = false;
  }
}

@Override
protected void controlUpdate(float tpf) {
  if (remove) {
    emitter.removeControl(this);
    return;
  }
  if (emitter.getNumVisibleParticles() == 0) {
    emitter.setCullHint(CullHint.Always);
    emitter.setEnabled(false);
    emitter.removeControl(this);
    stopRequested = false;
  }
}

@Override
protected void controlUpdate(float tpf) {
  if (remove) {
    emitter.removeControl(this);
    return;
  }
  if (emitter.getNumVisibleParticles() == 0) {
    emitter.setCullHint(CullHint.Always);
    emitter.setEnabled(false);
    emitter.removeControl(this);
    stopRequested = false;
  }
}

Entry<EffectElement, Spatial> entry = iter.next();
if (entry.getValue() instanceof ParticleEmitter) {
  if (((ParticleEmitter)entry.getValue()).getNumVisibleParticles() == 0) {