private static Queue <RenewalEvent> InitializeRenewalTimes(int particleCount, int lifespan)
{
var renewalEvents = new Queue <RenewalEvent>();
for (int i = 0; i < particleCount; i++)
{
var renewalEvent = new RenewalEvent {
Index = i, Time = i * lifespan / particleCount
};
renewalEvents.Enqueue(renewalEvent);
}
return(renewalEvents);
}
/// <summary>
/// Should be called once per frame. Returns a list of the indices of particles which have reached the
/// end of their lifespan.
/// </summary>
/// <returns></returns>
public List <int> IndicesToBeRenewed()
{
var lifespan = _options.ParticleLifespan;
var indices = new List <int>(_options.ParticleCount / _options.ParticleLifespan);
while (_renewalSchedule.Peek().Time < _timesCalled)
{
var renewalEvent = _renewalSchedule.Dequeue();
indices.Add(renewalEvent.Index);
var newRenewalEvent = new RenewalEvent
{
Index = renewalEvent.Index,
Time = _timesCalled + lifespan
};
_renewalSchedule.Enqueue(newRenewalEvent);
}
_timesCalled = _timesCalled + 1;
return(indices);
}
