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

public class MyEnviroManager : MonoSingleton<MyEnviroManager>
{

    bool started;//天气系统是否已经启用
    string weatherName;

    ///// <summary>
    ///// 给天气系统绑定目标
    ///// </summary>
    ///// <param name="player"></param>
    ///// <param name="camera"></param>
    //public void AssignAndStart(GameObject player, Camera camera)
    //{
    //    EnviroSkyMgr.instance.AssignAndStart(player, camera);
    //}

    /// <summary>
    /// 绑定/切换 天气渲染目标
    /// </summary>
    /// <param name="player"></param>
    /// <param name="camera"></param>
    public void ChangeFocus(GameObject player, Camera camera)
    {
        EnviroSkyMgr.instance.ChangeFocus(player,camera);
    }

    /// <summary>
    /// 设置目标天气 
    /// 场景更换时注意先为天气系统绑定目标
    /// </summary>
    /// <param name="weatherName">天气名称</param>
    public void SetWeather(string weatherName)
    {
        this.weatherName = weatherName;
        if (!started)
        {
            InitWeatherAndPlay();
        }
        else
        {
            UpdateWeather();
        }
    }

    //初始化天气效果 并启用
    private void InitWeatherAndPlay()
    {
        GameObject dirLight = GameObject.Find("Directional Light");
        if (dirLight)
            GameObject.Destroy(dirLight);//删除原有的 方向光源  避免干扰
        EnviroSkyMgr.instance.enviroHDInstance.Play(EnviroTime.TimeProgressMode.None);
        EnviroSkyMgr.instance.useVolumeLighting = false;//关闭体积光 
        StartCoroutine(WaitWeatherInit());
    }

    /// <summary>
    /// 结束天气系统
    /// </summary>
    public void Stop()
    {
        EnviroSkyMgr.instance.enviroHDInstance.Stop();//场景结束时 关闭天气系统 
    }

    //循环检测 直到天气系统初始化完毕
    IEnumerator WaitWeatherInit()
    {
        yield return new WaitForEndOfFrame();
        if (EnviroSkyMgr.instance.Weather.weatherPresets.Count != 0)
            UpdateWeather();
        else
            StartCoroutine(WaitWeatherInit());
    }

    private void UpdateWeather()
    {
        int weatherIndex = 0;
        switch (weatherName)
        {
            case "晴":

                break;
            case "雨":
                weatherIndex = 3;
                break;
            case "雪":
                weatherIndex = 4;
                break;
            case "雷雨":
                weatherIndex = 5;
                break;
            default:
                break;
        }
        EnviroSkyMgr.instance.ChangeWeatherInstant(weatherIndex);
    }



}