public void TestUpdate()
{
var forceRegistry = new ForceRegistry();
var force = new ParticleConstantForce(new Vector2D(5, 0));
var p = new Particle {
Mass = 1
};
force.Add(p);
this.TestAddForceGenerator(forceRegistry, force);
forceRegistry.Update(1 / 60.0);
p.Update(1 / 60.0);
Assert.AreEqual(new Vector2D(5, 0), p.Acceleration, "物体被赋予正确的加速度");
p.Acceleration = Vector2D.Zero;
this.TestRemoveForceGenerator(forceRegistry, force);
forceRegistry.Update(1 / 60.0);
p.Update(1 / 60.0);
Assert.AreEqual(new Vector2D(0, 0), p.Acceleration, "删去作用力发生器，物体不再受该作用力发生器所产生的力");
force.Add(p);
this.TestAddForceGenerator(forceRegistry, force);
this.TestRemoveParticle(forceRegistry, p);
forceRegistry.Update(1 / 60.0);
p.Update(1 / 60.0);
Assert.AreEqual(new Vector2D(0, 0), p.Acceleration, "删去物体，物体不再受该作用力发生器所产生的力");
}
/// <summary>
/// Crea un nuovo particle simulator che gestisce il dato numero di contatti per frame.
/// Si può specificare il numero di iterazioni massime da usare.
/// </summary>
/// <param name="maxContacts">Massimo numero di contacts gestiti</param>
/// <param name="iteration">Massimo numero di iterazioni nella risoluzione dei contacts</param>
public ParticleWorld(uint maxContacts, uint iteration)
{
Particles = new List <Particle>();
forceRegistry = new ForceRegistry();
resolver = new ParticleContactResolver(iteration);
contactGenRegistration = new List <ParticleContactGenerator>();
contacts = new List <ParticleContact>();
}
private void TestRemoveParticle(
ForceRegistry forceRegistry,
Particle p)
{
forceRegistry.Remove(p);
}
private void TestRemoveForceGenerator(
ForceRegistry forceRegistry,
ParticleForceGenerator force)
{
forceRegistry.Remove(force);
}
private void TestAddForceGenerator(
ForceRegistry forceRegistry,
ParticleForceGenerator force)
{
forceRegistry.Add(force);
}
/// <summary>
/// Create the manager that handles the RigidBodies
/// </summary>
/// <param name="maxContacts">Maximum of contacts managed in a single iteration</param>
/// <param name="iteration">Number of iterations used to resolve contacts</param>
public RigidBodyWorld(uint maxContacts, uint iteration)
{
rigidBodies = new List <RigidBody>();
forceRegistry = new ForceRegistry();
}