using UnityEngine;
using System.Collections;

public class Test2DLocalMove : MonoBehaviour {
    //public Transform from;
    //public Transform to;

    public Vector3 mStart = Vector3.zero;
    public Vector3 mEnd = Vector3.zero;
    Vector3 center = Vector3.zero;

    private float mF1;
    private float mF2;
    private float mFloat = 0;

    bool isYes = false;

    public void Init(Vector3 start, Vector3 end)
    {
        this.mStart = start;
        this.mEnd = end;
        LogHelper.Log(this.mStart.ToString() + "/" + this.mEnd.ToString());
        mF1 = Random.Range(-2.0f, 2.0f);
        mF2 = Random.Range(0.0f, 1.0f);
        isYes = true;  
        // 弧线的中心
        center = (mStart + mEnd) * 0.5f;
    }


    void Update()
    {
        if (isYes)
        {
            mFloat += Time.deltaTime*30000;
            // 向下移动中心，垂直于弧线
            center -= new Vector3(mF2, mF1, 0);
            // 相对于中心在弧线上插值
            Vector3 riseRelCenter = mStart - center;
            Vector3 setRelCenter = mEnd - center;
            transform.position = Vector3.Slerp(riseRelCenter, setRelCenter, mFloat);
            transform.position += center;

            if (transform.position == mEnd)
            {
                isYes = false;
                StartCoroutine(Destroy());
            }
        }
    }
    IEnumerator Destroy()
    {
        yield return new WaitForSeconds(0.2f);
        //Destroy(this.gameObject);
    }
}