public void updateParticle( Particle p )
{
p.Vx = vx;
p.Vy = vy;
p.X = p.X + vx;
p.Y = p.Y + vy;
p.Time++;
}
/// <summary>
///
/// </summary>
/// <param name="relative"></param>
/// <param name="part"></param>
public override void placeParticle(Emitter relative, Particle part)
{
PathGeometry p = PathGeometry;
Point location, tangent;
p.GetPointAtFractionLength(particleRandomizer.NextDouble(), out location,out tangent);
part.X = location.X;
part.Y = location.Y;
}
public void updateParticle( Particle p )
{
p.Vx += Ax;
p.Vy += Ay;
p.X = p.X + p.Vx;
p.Y = p.Y + p.Vy;
p.Image.Opacity = Math.Max((1 - p.Time * 1.0 / p.Lifetime), 0);
p.Time++;
}
public override void launchParticle(Particle part)
{
double minTheta = MinAngle * Math.PI / 180.0;
double maxTheta = MaxAngle * Math.PI / 180.0;
double minv = MinVelocity;
double maxv = MaxVelocity;
double launchAngle = minTheta + (particleRandomizer.NextDouble()
* (maxTheta - minTheta));
double launchVelocity = minv + (particleRandomizer.NextDouble()
* (maxv - minv));
part.Vx = launchVelocity * Math.Cos(launchAngle);
part.Vy = launchVelocity * Math.Sin(launchAngle);
//notify the particle that it has been launched.
part.launched();
}
public void emit( Particle p )
{
ParticleLauncher.placeParticle(this, p);
p.Lifetime = p.Lifetime;
p.Time = 0;
ParticleLauncher.launchParticle( p );
// p.update(); //Don't update yet
particles.AddFirst( p );
}
/// <summary>
/// Clones this particle.
/// Does not copy ALL data.
/// Copies necessary information to allow for quick use.
/// </summary>
/// <returns>A clone of this Particle.</returns>
internal Particle clone()
{
Particle cloned = new Particle();
cloned.Lifetime = this.Lifetime;
cloned.Image.Source = this.Image.Source;
cloned.PartControl = PartControl;
return cloned;
}
/// <summary>
///
/// </summary>
/// <param name="relative"></param>
/// <param name="p"></param>
public virtual void placeParticle(Emitter relative, Particle p)
{
p.X = relative.X;
p.Y = relative.Y;
}