/// <summary>
/// Builds a particle system with gravity and viscous drag forces. This particle system interacts with the mouse.
/// </summary>
/// <returns>The newly built particle system.</returns>
public static ParticleSystem BuildParticleSystem()
{
ParticleSystem ps = new ParticleSystem();
ps.AddForce(new GravityForce(ps));
ps.AddForce(new ViscousDragForce(ps));
ps.AddForce(new MouseSpringForce(ps));
return ps;
}
/// <summary>
/// Constructs a new gravity force.
/// </summary>
/// <param name="PS">The particle system affected by this gravity force.</param>
public GravityForce(ParticleSystem PS)
{
this.PS = PS;
forceVector = Constants.Physics.GRAVITY_MAGNITUDE * Constants.Physics.GRAVITY_DIRECTION;
}
public MouseSpringForce(ParticleSystem PS) { this.PS = PS; }
/// <summary>
/// Constructs a new drag force.
/// </summary>
/// <param name="PS">A particle system containing affected particles.</param>
public ViscousDragForce(ParticleSystem PS)
{
this.PS = PS;
}