Fractal_Test

本文由博主(YinaPan)原创，转载请注明出处：http://www.cnblogs.com/YinaPan/p/Fractal_Test.html 

参考：http://catlikecoding.com/unity/tutorials/constructing-a-fractal/

using UnityEngine;
using System.Collections;

public class Fractal : MonoBehaviour {
    public Mesh[] meshes;
    public Material material;
    public int maxDepth;
    public float childScale;
    private int depth;
    public float spawnProbability;
    public float maxRotationSpeed;
    private float rotationSpeed;

    private static Vector3[] childDirections = {
                                                   Vector3.up,
                                                   Vector3.right,
                                                   Vector3.left,
                                                   Vector3.forward,
                                                   Vector3.back,
                                                   Vector3.down
                                               };

    private static Quaternion[] childOrientations = {
                                                        Quaternion.identity,
                                                        Quaternion.Euler(0f, 0f, -90f),
                                                        Quaternion.Euler(0f, 0f, 90f),
                                                        Quaternion.Euler(90f, 0f, 0f),
                                                        Quaternion.Euler(-90f, 0f, 0f),
                                                        Quaternion.Euler(0f, 0f, 180f)
                                                    };

    private Material[,] materials;

    private void InitializeMaterials() {
        materials = new Material[maxDepth + 1, 2];
        for (int i = 0; i <= maxDepth; i++) {
            float t = i / (maxDepth - 1f);
            t *= t;
            materials[i, 0] = new Material(material);
            materials[i, 0].color = Color.Lerp(Color.white, Color.yellow, t);
            materials[i, 1] = new Material(material);
            materials[i, 1].color = Color.Lerp(Color.white, Color.cyan, t);
        }
        materials[maxDepth, 0].color = Color.magenta;
        materials[maxDepth, 1].color = Color.red;
    }

    // Use this for initialization
    void Start() {
        if(materials == null){
            InitializeMaterials();
        }
        gameObject.AddComponent<MeshFilter>().mesh = meshes[Random.Range(0, meshes.Length)];
        gameObject.AddComponent<MeshRenderer>().material = materials[depth, Random.Range(0, 2)];
        rotationSpeed = Random.Range(-maxRotationSpeed, maxRotationSpeed);
        if(depth < maxDepth) {
            StartCoroutine(CreateChildren());
        }

    }

    private IEnumerator CreateChildren() {
        for (int i = 0; i < childDirections.Length; ++i) {
            if (Random.value < spawnProbability) {
                yield return new WaitForSeconds(Random.Range(0.1f, 0.5f));
                new GameObject("Fractal Child").AddComponent<Fractal>().Initialize(this, i);
            }
            
        }
    }

    private void Initialize(Fractal parent, int childIndex) {
        meshes = parent.meshes;
        materials = parent.materials;
        maxDepth = parent.maxDepth;
        depth = parent.depth + 1;
        transform.parent = parent.transform;
        childScale = parent.childScale;
        transform.localScale = Vector3.one * childScale;
        transform.localPosition = childDirections[childIndex] * (0.5f + 0.5f * childScale);
        transform.localRotation = childOrientations[childIndex];
        spawnProbability = parent.spawnProbability;
        maxRotationSpeed = parent.maxRotationSpeed;
    }

    // Update is called once per frame
    void Update() {
        transform.Rotate(0f, rotationSpeed * Time.deltaTime, 0f);
    }
}

PS:失败的地方是：没有DynamicBatch，为何原文说会合并呢?

unitypackage：https://files.cnblogs.com/files/YinaPan/Fractal_Test.rar