using UnityEngine;
using System.Collections;

public class TreeSeed : MonoBehaviour
{
    public Color inheritedColor;
    public Color myColor;
    public float colorDelta;
    bool isGrowing = false;
    public float spawnTimeLow;
    public float spawnTimeHigh;
    //public  float SplitTiming;
    public float DestroyMinRange;
    public float DestroyMaxRange;
    public float waitTime;
    public float maxSize;
    public float growFactor;
    //float lifeTime;
    //float t = 0f;
    public AnimationCurve curve;
    public int splitNum = 0;
    public int splitMax; //maximum number of splits that can ever happen
    public GameObject prefab;
    //MeshRenderer mr;
    // Use this for initialization
    //void OnEnable() {
    //lifeTime = Random.Range (DestroyMinRange, DestroyMaxRange);
    //t = .5f;
    //}



    void OnEnable()
    {
        myColor = new Color(inheritedColor.r + Random.Range(-colorDelta, colorDelta), inheritedColor.g + Random.Range(-colorDelta, colorDelta), inheritedColor.b + Random.Range(-colorDelta, colorDelta), inheritedColor.a);
        GetComponent<MeshRenderer>().material.color = myColor;
        StartCoroutine("SeedOut");
        StartCoroutine("Scale");
        transform.localScale = Vector3.one;
        Destroy(gameObject, Random.Range(DestroyMinRange, DestroyMaxRange));
    }
    // Update is called once per frame
    void FixedUpdate()
    {

    }
    public IEnumerator SeedOut()
    {
        while (splitNum < splitMax)
        {
            transform.localScale += new Vector3(0.1F, 0.1F, 0.1F);
            yield return new WaitForSeconds(Random.Range(spawnTimeLow, spawnTimeHigh));
            float x = curve.Evaluate(Time.timeSinceLevelLoad);
            float y = curve.Evaluate(Time.timeSinceLevelLoad);
            float z = curve.Evaluate(Time.timeSinceLevelLoad);


            GameObject obj = (GameObject)Instantiate(prefab, transform.position, Quaternion.identity);
            GameObject obj2 = (GameObject)Instantiate(prefab, transform.position, Quaternion.identity);


            splitNum++;
            GetComponent<TreeSeed>().inheritedColor = myColor;
            obj.GetComponent<TreeSeed>().splitNum = splitNum;
        } }
        public IEnumerator Scale()
    {
        float timer = 0;

        while (true) // this could also be a condition indicating "alive or dead"
        {
            // we scale all axis, so they will have the same value,
            // so we can work with a float instead of comparing vectors
            while (maxSize > transform.localScale.x)
            {
                timer += Time.deltaTime;
                transform.localScale += new Vector3(.1F, .5F, .1F) * Time.deltaTime * growFactor;
                yield return null;
            }
            // reset the timer

            yield return new WaitForSeconds(waitTime);

            timer = 0;
            while (1 < transform.localScale.x)
            {
                timer += Time.deltaTime;
                transform.localScale -= new Vector3(1, 1, 1) * Time.deltaTime * growFactor;
                yield return null;
            }

            timer = 0;
            yield return new WaitForSeconds(waitTime);
        }


            //if (isGrowing)
            //transform.localScale = new Vector3 ((.1f) + transform.localScale.x, (.1f) + transform.localScale.y, (.1f) + transform.localScale.z);
            //else
            //transform.localScale = new Vector3 ((-.1f) + transform.localScale.x, (-.1f) + transform.localScale.y, (-.1f) + transform.localScale.z);


        }
    }