public Branch(Branch parent, float weight, int sibling, Vector3 light, float light_intensity)
{
this.parent = parent;
this.level = parent.level + 1;
this.weight = weight;
this.child = new List <Branch>();
this.sprig = new List <Branch>();
this.angle = parent.angle;
this.length = parent.length;
this.color = parent.color;
this.pos = parent.pos + parent.dir;
//calc angle
this.dir = Quaternion.Euler(0.0f, 0.0f, (-1 * (angle / 2.0f) + (this.angle / (sibling - 1) * parent.child.Count)) * Random.Range(0.6f, 1.0f)) * (parent.dir);
if (light != Vector3.zero)
{
this.weight *= (1 + Mathf.Pow(Mathf.Cos(Vector3.Angle(this.dir, light * -1) / 2.0f * Mathf.PI / 180.0f), light_intensity));
}
this.dir = this.dir.normalized * this.length * this.weight * Random.Range(1.0f, 1.5f);
this.tree = parent.tree;
}
// trunk
public Branch(YulanTree tree, Vector3 direction, float length, float angle)
{
this.parent = null;
this.level = 0;
this.weight = 1;
this.child = new List <Branch>();
this.pos = Vector3.zero;
this.dir = direction.normalized * length;
this.length = length;
this.angle = angle;
this.tree = tree;
this.color = Color.white;
if (tree.light != Vector4.zero)
{
this.weight *= (1 + Mathf.Pow(Mathf.Cos(Vector3.Angle(this.dir, (Vector3)tree.light * -1) / 2.0f * Mathf.PI / 180.0f), tree.light.z));
}
this.dir *= this.weight * Random.Range(1.0f, 2.0f);
}
public void Generate()
{
tree = new YulanTree(Vector3.up, intensity, duration, angle, this.sun.forward, this.sun_intensity, this.sprig);
//tree = new YulanTree(Vector3.up, intensity, duration, angle, Vector3.zero, 0.0f);
tree.MakeCompleteTree();
}