public Node(NodeDNA dna, Vector3 pos)
{
this.dna = dna;
this.position = pos;
this.baseAngle = this.angle = -MathHelper.PiOver2;
this.radius = (10f * dna.BaseRadius) + NodeDNA.NextFloat() + 4f;
this.idColor = makeIDColor(this.dna, this.depth);
}
public Node(Node parent, float childPct)
{
this.id = NextID++;
this.parent = parent;
if (parent != null)
{
this.depth = parent.depth + 1;
this.dna = parent.dna;
// As a child, offset the child index
var skew = (float)Math.Pow(this.dna.AngleSkew - .5f, 3);
var spread = (2f * this.dna.Bushiness);
this.baseAngle = parent.angle + spread * (childPct - .5f) + skew;
this.baseAngle +=
this.dna.Wiggle * .1f * MathF.Sin(this.depth) * this.depth;
// Set the position relative to the parent
var mult = 15 - 12 * this.dna.Bushiness;
this.branchLength = .7f * mult * parent.radius;
this.branchLength *=
(1 + 1 * this.dna.Variation * (NodeDNA.NextFloat() - .5f));
this.radius = parent.radius * (.6f + .3f * this.dna.Shrinkage);
this.position =
MathF.PolarOffset(
parent.position,
this.branchLength,
this.baseAngle
);
}
this.angle = this.baseAngle;
this.idColor = makeIDColor(this.dna, this.depth);
}
