//--------------------------------------------------------
//    [Author]:           第二世界
//    [  Date ]:           Friday, September 21, 2018
//--------------------------------------------------------
using UnityEngine;
using System.Collections;
using UnityEngine.UI;
using DG.Tweening;
using System;

namespace Snxxz.UI
{
    public class RotatePointer : MonoBehaviour
    {
        public bool _isRotate = false;//是否旋转      
        public float Speed = 2000;//旋转速度
        public float Angle = 0; // 这个是设置停止的角度
        private float Acceleration = 0;//加速度
        private float _time;
        private bool IsRotateBool = false;//是否进行旋转
        public static event Action<bool> IsButtonShow;
        [Header("总旋转时间")]
        public float ContinuousTime = 4;//旋转时间
        [Header("加速减速时间")]
        public float SpeedTime = 1;
        [Header("最小速度")]
        public float MinSpeed = 400;
        [Header("最大速度")]
        public float MaxSpeed = 800;
        WheelOfFortuneModel wheelOfFortuneModel { get { return ModelCenter.Instance.GetModel<WheelOfFortuneModel>(); } }
        [SerializeField] CheckDisplay m_CheckDisplay;

        public void Init()
        {
            IsRotateBool = false;
            _time = 0;
            Angle = wheelOfFortuneModel.AngleSave;
            transform.localRotation = Quaternion.Euler(0, 0, -Angle);
            Acceleration = (MaxSpeed - MinSpeed) / SpeedTime;
            m_CheckDisplay.CloseAll();
        }
        private void OnEnable()
        {

        }
        void Update()
        {

            if (!_isRotate)
            {
                if (Math.Abs((360 - Angle) - transform.eulerAngles.z) > 2)
                {
                    transform.localRotation = Quaternion.Euler(0, 0, -Angle);
                    m_CheckDisplay.ShowSelected(wheelOfFortuneModel.Lattice);
                    if (IsButtonShow != null)
                    {
                        IsButtonShow(true);
                    }
                    IsRotateBool = false;
                }
                return; //不旋转结束
            }
            if (IsRotateBool)
            {
                _time += Time.deltaTime;
                if (_time < SpeedTime)//匀加速
                {
                    Speed = MinSpeed + Acceleration * _time;
                    if (Speed >= MaxSpeed)
                    {
                        Speed = MaxSpeed;
                    }
                }
                else if (_time > ContinuousTime - SpeedTime)//匀减速
                {
                    Speed = MaxSpeed - Acceleration * (_time - (ContinuousTime - SpeedTime));
                    if (Speed <= MinSpeed)
                    {
                        Speed = MinSpeed;
                    }
                }
                else//匀速
                {
                    Speed = MaxSpeed;
                }
                if (_time < ContinuousTime) // 没结束
                {
                    transform.Rotate(-Vector3.forward * Speed * Time.deltaTime);
                }
                else
                {
                    //结束，使用DoTween旋转到结束角度，耗时1秒
                    //这里有个360，使用来防止指针回转的，如果不加这个360，你会看到指针倒退
                    Sequence sequence = DOTween.Sequence();
                    sequence.Append(transform.DORotate(new Vector3(0, 0, -(360 + Angle)), 2f, RotateMode.FastBeyond360));
                    sequence.AppendCallback(() =>
                    {
                        _isRotate = false; // 设置不旋转
                        if (IsButtonShow != null)
                        {
                            IsButtonShow(true);
                        }
                        m_CheckDisplay.ShowSelected(wheelOfFortuneModel.Lattice);
                    });
                    IsRotateBool = false;
                }
            }
        }
        //外部调用，初始化时间和打开旋转,设置停止角度
        public void SetTime(bool _bool)
        {
            _time = 0;
            Angle = wheelOfFortuneModel.AngleSave;
            if (_bool)
            {
                IsRotateBool = false;
                _isRotate = false;
            }
            else
            {
                IsRotateBool = true;
                _isRotate = true;
            }
        }
    }

}