public void AddParticle(FluidParticle p)
{
// Calculate which cell this particle goes in
int x = (int)((p.Position.X - fluid.Container.Bounds.Max.X) / this.h);
int y = (int)((p.Position.Y - fluid.Container.Bounds.Max.Y) / this.h);
int z = (int)((p.Position.Z - fluid.Container.Bounds.Max.Z) / this.h);
x = Math.Abs(x) % this.width;
y = Math.Abs(y) % this.height;
z = Math.Abs(z) % this.depth;
int index = this.width * this.height * z + this.width * y + x;
this.Entry[index].Add(p);
}
private void SelfGatherCellNeighbors(FluidParticle part, int index, int index0, List<NeighbourPair> neighbors)
{
for (int i = index + 1; i < this.Entry[index0].Count; i++)
{
FluidParticle b = this.Entry[index0][i];
Vector3 rv = part.Position - b.Position;
if (rv.LengthSquared() < this.h2)
{
neighbors.Add(new NeighbourPair(part, b));
}
}
}
public NeighbourPair(FluidParticle a, FluidParticle b)
{
A = a;
B = b;
}
private void GatherCellNeighbors2(FluidParticle part, int x1, int y1, int z1, List<NeighbourPair> neighbors)
{
x1 = Math.Abs(x1) % this.width;
y1 = Math.Abs(y1) % this.height;
z1 = Math.Abs(z1) % this.depth;
int index = (((z1 * this.height) + y1) * this.width) + x1;
foreach (FluidParticle particle in this.Entry[index])
{
Vector3 rv = part.Position - particle.Position;
if (rv.LengthSquared() < this.h2)
{
neighbors.Add(new NeighbourPair(part, particle));
}
}
}
public void InitializeParticles()
{
Particles.Clear();
for (int i = 0; i < MaxParticles; i++)
{
FluidParticle particle = new FluidParticle();
particle.Position = Random(this.Container.Bounds.Min, this.Container.Bounds.Max);
particle.Velocity = Vector3.Zero;
particle.Force = Vector3.Zero;
//particle.Color = new Vector3((float)FluidSimulation1.Random.NextDouble(), (float)FluidSimulation1.Random.NextDouble(), (float)FluidSimulation1.Random.NextDouble());
particle.Color = new Vector3(0.18f, 0.81f, 1);
particle.Density = 0f;
particle.Pressure = 0f;
Particles.Add(particle);
}
}
