using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class RockerMove : MonoBehaviour
{
    public Transform cameraRig;
    public float moveSpeed;

    protected Transform rockerPoint;
    protected Transform holdPoint;

    protected bool isMove = false;

    public Transform holdBall;
    // Use this for initialization
    public virtual void Update()
    {
        if (isMove)
        {
            Move();
            HoldBallControl();
        }
    }

    public virtual void HoldBallControl()
    {
        float localScale = Vector3.Distance(holdPoint.position, rockerPoint.position);

        localScale = Mathf.Clamp(localScale, 0, 0.1f);
        holdBall.transform.localScale = Vector3.one * localScale * 2;


        holdBall.LookAt(holdPoint.position);
    }

    /// <summary>
    /// 初始化摇杆点
    /// </summary>
    /// <param name="holdPoint"></param>
    public void InitRockerPoint(Transform _holdPoint)
    {
        if (!rockerPoint)
        {
            rockerPoint = new GameObject("Rocker").transform;
            rockerPoint.parent = this.transform;
            holdBall.transform.parent = rockerPoint;
            holdBall.transform.localPosition = Vector3.zero;
        }

        this.holdPoint = _holdPoint;
        rockerPoint.transform.position = holdPoint.position;
        holdBall.gameObject.SetActive(true);
        isMove = true;
        HoldBallControl();
    }

    public virtual void Move()
    {
        Vector3 _moveDir = holdPoint.position - rockerPoint.position;
        cameraRig.transform.Translate(_moveDir * moveSpeed * Time.deltaTime, Space.World);
    }

    public void Close()
    {
        isMove = false;
        holdPoint = null;
        holdBall.gameObject.SetActive(false);
    }
}