public List <FlatSubParticle> update_particles(float aDelta)
{
List <FlatSubParticle> removed = new List <FlatSubParticle>();
LinkedListNode <FlatSubParticle> starting = mParticles.First;
while (starting != null)
{
LinkedListNode <FlatSubParticle> operating = starting;
FlatSubParticle e = starting.Value;
e.pos += e.vel * aDelta;
e.vel += Gravity * aDelta;
e.timer.update(aDelta);
starting = starting.Next;
if (e.timer.isExpired())
{
mParticles.Remove(operating);
removed.Add(operating.Value);
}
//update the element
e.element.HardPosition = e.pos;
if (UseColor)
{
float lambda = Mathf.Clamp01(e.timer.getLinear());
e.element.HardColor = StartColor * (1 - lambda) + EndColor * lambda;
}
e.element.update(aDelta);
}
return(removed);
}
public FlatSubParticle add_particle(FlatElementBase aParticle, Vector3 aPos, Vector3 aVel, float aLifetime, string aId)
{
FlatSubParticle addMe = new FlatSubParticle();
addMe.id = aId;
addMe.pos = aPos;
addMe.vel = aVel;
addMe.element = aParticle;
addMe.timer = new QuTimer(0, aLifetime);
mParticles.AddLast(addMe);
return(addMe);
}
