Fractal.cs

Fractal.cs

using UnityEngine;
using System.Collections;

public class Fractal : MonoBehaviour {
  public int maxDepth = 4;
  private int depth;

  Matrix4x4 mat;
  Vector3[] vertex,afterVertex;

  public Mesh mesh;
  public Material material;

  public float branchScale;


  private void Start () {
    gameObject.AddComponent<MeshFilter>().mesh = mesh;
    gameObject.AddComponent<MeshRenderer>().material = material;
    vertex = mesh.vertices;
    afterVertex = new Vector3[vertex.Length];
    if (depth < maxDepth) { 
      StartCoroutine(CreateChildren());
    }
  }
  private IEnumerator CreateChildren() {
    yield return StartCoroutine(Grow ());
    yield return new WaitForSeconds(Random.Range(0.1f, 0.5f));
    new GameObject("Fractal Child").AddComponent<Fractal>().
      Initialize(this, Vector3. up, Quaternion.Euler(0f, 0f, - 45f));
    yield return new WaitForSeconds(Random.Range(0.1f, 0.5f));
    new GameObject("Fractal Child").AddComponent<Fractal>().
      Initialize(this, Vector3.up, Quaternion.Euler(0f, 0f, 45f));
  }
  private void Initialize (Fractal parent , Vector3 direction, Quaternion orientation) {
    mesh = parent.mesh;
    material = parent.material;
    maxDepth = parent.maxDepth;
    depth = parent.depth + 1;
    branchScale = parent.branchScale;
    transform.parent = parent.transform;
    transform.localScale = Vector3.one * branchScale;
    transform.localPosition = direction * (0.5f + 0.66f * branchScale);
    transform.localRotation = orientation;
  }
}