private void FixedUpdate()
{
for (int part_idx = 0; part_idx < m_LJRigidbodies.Count; part_idx++)
{
Rigidbody ljrigid = m_LJRigidbodies[part_idx];
Vector3 accelerate = -m_ScaledGammas[part_idx] * ljrigid.velocity;
Vector3 random_force = new Vector3(m_NormalizedRandom.Generate(),
m_NormalizedRandom.Generate(),
m_NormalizedRandom.Generate());
accelerate += m_NoiseCoefs[part_idx] * random_force;
ljrigid.AddForce(accelerate, ForceMode.Acceleration);
}
}
// This method generate BaseParticle in system by side effect.
internal List <GameObject> GenerateBaseParticles(GameObject original_base_particle, float kb_scaled)
{
var return_list = new List <GameObject>();
var temperature = SystemTable.Get <TomlTable>("attributes").Get <float>("temperature");
List <TomlTable> particles = SystemTable.Get <List <TomlTable> >("particles");
foreach (TomlTable particle_info in particles)
{
var position = particle_info.Get <List <float> >("pos");
GameObject new_particle =
GameObject.Instantiate(original_base_particle,
new Vector3(position[0], position[1], position[2]),
original_base_particle.transform.rotation);
// initialize particle velocity
Rigidbody new_rigid = new_particle.GetComponent <Rigidbody>();
new_rigid.mass = particle_info.Get <float>("m");
if (particle_info.ContainsKey("vel"))
{
var velocity = particle_info.Get <List <float> >("vel");
new_rigid.velocity = new Vector3(velocity[0], velocity[1], velocity[2]);
}
else
{
float sigma = Mathf.Sqrt(kb_scaled * temperature / new_rigid.mass);
new_rigid.velocity = new Vector3(Rng.Generate() * sigma,
Rng.Generate() * sigma,
Rng.Generate() * sigma);
}
return_list.Add(new_particle);
}
return(return_list);
}
