public bool UpdateParticles()
{
if (Info == null || PhysicsObj == null)
{
return(false);
}
if (!PhysicsObj.ShouldDrawParticles(DegradeDistance))
{
if (DegradedOut != 0)
{
PhysicsObj.SetNoDraw(true);
DegradedOut = 1;
}
LastUpdateTime = PhysicsTimer.CurrentTime;
if (Info.TotalParticles > 0 || Info.TotalSeconds > 0.0f)
{
if (Info.MaxParticles > 0)
{
for (var i = 0; i < Info.MaxParticles; i++)
{
var particle = Particles[i];
if (particle != null)
{
particle.Lifetime = PhysicsTimer.CurrentTime - particle.Birthtime;
KillParticle(i);
}
}
}
if (!Stopped)
{
if (ShouldEmitParticle())
{
RecordParticleEmission();
}
StopEmitter();
return(true);
}
else
{
return(NumParticles != 0);
}
}
else
{
if (Info.MaxParticles > 0)
{
for (var i = 0; i < Info.MaxParticles; i++)
{
Particles[i].Birthtime = PhysicsTimer.CurrentTime;
}
}
return(true);
}
}
else
{
if (DegradedOut != 0)
{
DegradedOut = 0;
PhysicsObj.SetNoDraw(false);
}
if (Info.MaxParticles > 0)
{
for (var i = 0; i < Info.MaxParticles; i++)
{
AFrame frame = null;
var part = Parts[i];
if (part != null)
{
if (Info.IsParentLocal)
{
if (PartIndex == -1)
{
frame = Parent.Position.Frame;
}
else
{
frame = Parent.PartArray.Parts[PartIndex].Pos.Frame;
}
}
else
{
frame = Particles[i].StartFrame;
}
var firstParticle = Info.TotalParticles == 0 && Info.TotalSeconds == 0.0f;
Particles[i].Update(Info.ParticleType, firstParticle, part, frame);
KillParticle(i);
}
}
}
var hasParticles = true;
if (!Stopped)
{
if (ShouldEmitParticle())
{
EmitParticle();
}
StopEmitter();
}
else
{
hasParticles = NumParticles != 0;
}
LastUpdateTime = PhysicsTimer.CurrentTime;
return(hasParticles);
}
}
