public void GenerateParticles(CoreGrid grid, int particlesPerSection)
{
var sections = grid.GetCores().SelectMany(core => core.Sections);
var sectionPositions = sections.Select(section => (section.UpperBound + section.LowerBound) / 2);
var centerVector = new Vector3(sectionPositions.Average(section => section.X), sectionPositions.Average(section => section.Y), sectionPositions.Average(section => section.Z));
var minVector = new Vector3(sectionPositions.Min(s => s.X), sectionPositions.Min(s => s.Y), sectionPositions.Min(s => s.Z));
var maxVector = new Vector3(sectionPositions.Max(s => s.X), sectionPositions.Max(s => s.Y), sectionPositions.Max(s => s.Z));
var minDistFromCenterSquared = sectionPositions.Select(position => (position - centerVector).LengthSquared()).Min();
var centerSection = sections.First(s => (((s.UpperBound + s.LowerBound) / 2 - centerVector).LengthSquared().Equals(minDistFromCenterSquared)));
foreach (var section in sections)
{
for (var i = 0; i < particlesPerSection; i++)
{
var delta = new Vector3(
((float)((maxVector.X - minVector.X) * (random.NextDouble() - 0.5f))),
((float)((maxVector.Y - minVector.Y) * (random.NextDouble() - 0.5f))),
((float)((maxVector.Z - minVector.Z) * (random.NextDouble() - 0.5f))));
centerSection.AddParticle(new Particle()
{
Position = centerVector + delta / 10, Velocity = delta
});
}
}
}
private void GenerateLocalParticles(CoreGrid cGrid, int particlesPerSection)
{
bool didCore = false;
foreach (var core in cGrid.GetCores())
{
if (didCore)
{
continue;
}
foreach (var section in core.Sections)
{
for (var i = 0; i < particlesPerSection; i++)
{
var position = section.LowerBound +
new Vector3(
(section.UpperBound.X - section.LowerBound.X) *
(float)Math.Abs(random.NextDouble()),
(section.UpperBound.Y - section.LowerBound.Y) *
(float)Math.Abs(random.NextDouble()),
(section.UpperBound.Z - section.LowerBound.Z) *
(float)Math.Abs(random.NextDouble()));
var velocity = new Vector3(1f - 2 * (float)random.NextDouble(),
1f - 2 * (float)random.NextDouble(),
1f - 2 * (float)random.NextDouble());
section.AddParticle(new Particle {
Position = position, Velocity = velocity
});
}
}
didCore = true;
}
}
public void GenerateParticles(CoreGrid grid, int particlesPerSection)
{
var sectionPositions = grid.GetCores().SelectMany(core => core.Sections).Select(section => (section.UpperBound + section.LowerBound) / 2);
var centerVector = new Vector3(sectionPositions.Average(section => section.X), sectionPositions.Average(section => section.Y), sectionPositions.Average(section => section.Z));
var minVector = new Vector3(sectionPositions.Min(s => s.X), sectionPositions.Min(s => s.Y), sectionPositions.Min(s => s.Z));
var maxVector = new Vector3(sectionPositions.Max(s => s.X), sectionPositions.Max(s => s.Y), sectionPositions.Max(s => s.Z));
foreach (var section in grid.GetCores().SelectMany(c => c.Sections))
{
for (var i = 0; i < particlesPerSection; i++)
{
var delta = new Vector3(
((float)((maxVector.X - minVector.X) * (random.NextDouble() - 0.5f))),
((float)((maxVector.Y - minVector.Y) * (random.NextDouble() - 0.5f))),
((float)((maxVector.Z - minVector.Z) * (random.NextDouble() - 0.5f))));
section.AddParticle(new Particle()
{
Position = centerVector + delta / 10, Velocity = delta
});
}
}
}
public void GenerateParticles(CoreGrid grid, int particlesPerSection)
{
foreach (var particleSection in grid.GetCores().SelectMany(core => core.Sections))
{
for (var i = 0; i < particlesPerSection; i++)
{
var randomPositionWithinSphere = GetRandomPositionWithinSphere(ballCenter, ballRadius);
var velocity = randomPositionWithinSphere - ballCenter;
if (velocity.LengthSquared() != 0)
{
velocity.Normalize();
velocity *= maxSpeed * ((float)random.NextDouble());
}
particleSection.AddParticle(new Particle()
{
Position = randomPositionWithinSphere, Velocity = velocity
});
}
}
}
private void GenerateRandomParticles(CoreGrid cGrid, int particlesPerCore)
{
foreach (var core in cGrid.GetCores())
{
foreach (var section in core.Sections)
{
for (var i = 0; i < particlesPerCore; i++)
{
var position = new Vector3((float)random.NextDouble(), (float)random.NextDouble(),
(float)random.NextDouble());
var velocity = new Vector3(1f - 2 * (float)random.NextDouble(),
1f - 2 * (float)random.NextDouble(),
1f - 2 * (float)random.NextDouble());
section.AddParticle(new Particle()
{
Position = position, Velocity = velocity
});
}
}
}
}