//---------------------------------------------------------------------------
public bool Update(float deltaTime, ParticleDesc desc)
{
LifeTime += deltaTime;
RelativeLifeTime = (LifeTime / MaxLifeTime);
if (LifeTime >= MaxLifeTime)
{
return(true);
}
Velocity = (Velocity - Vector3.UnitZ * desc.Gravity(RelativeLifeTime)) * (1.0f - desc.Inertia(RelativeLifeTime));
if (Drift.Length() > 0)
{
Matrix rotMatrix = Matrix.CreateFromAxisAngle(Vector3.Normalize(Drift), MathHelper.ToRadians(Drift.Length()));
Velocity = Vector3.Transform(Velocity, rotMatrix);
}
Location += Velocity;
if (Location.Z < 0)
{
Location = new Vector3(Location.X, Location.Y, 0);
Velocity = new Vector3(Velocity.X, Velocity.Y, -Velocity.Z * desc.Restitution(RelativeLifeTime));
}
return(false);
}
//---------------------------------------------------------------------------
public ParticleEmitter(EEmitterType type, ParticleDesc desc)
{
Type = type;
m_Particles = new List <Particle>();
m_Rand = new Random();
Description = (desc != null ? desc : ParticleDesc.Default);
}
//---------------------------------------------------------------------------
public CircleParticleEmitter(float innerRadius, float outerRadius, ParticleDesc desc = null) : base(EEmitterType.Circle, desc)
{
InnerRadius = innerRadius;
OuterRadius = outerRadius;
}
public PointParticleEmitter(Vector3 center, ParticleDesc desc = null) : base(EEmitterType.Point, desc)
{
Center = center;
}
