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

public class StepControl : MonoBehaviour
{
    public Transform CameraTrans;//相机
    public int CurrStepIndex;//当前执行的步骤索引号
    Step CurrStep;//当前步骤
    public Transform StepParent;//列表的父物体
    List<Step> StepList;//步骤列表
    int i;
    public AudioSource CorrectAud;

    void Start()
    {
        //获取步骤列表
        StepList = new List<Step>();
        for (i = 0; i < StepParent.childCount; i++)
            StepList.Add(StepParent.GetChild(i).GetComponent<Step>());
        //执行
        Invoke("StepWork", 2);
    }
    //执行步骤
    bool ifRun,ifAni,ifCheckPos;
    public float Dis;//距离
    public void StepWork()
    {
        if (CurrStepIndex < StepList.Count)
        {
            CurrStep = StepList[CurrStepIndex];//当前步骤
            Debug.Log("当前执行点" + CurrStepIndex.ToString() + ":" + CurrStep.name);
            ///////////节点动作：显示物体
            for (i = 0; i < CurrStep.ShowObj.Length; i++)
                CurrStep.ShowObj[i].SetActive(true);
            ///////////节点动作：语音播放
            if (CurrStep.Aud != null)
                CurrStep.Aud.Play();
            ///////////节点动作：播放动画
            if (CurrStep.Anin != null)
                CurrStep.Anin.Play(CurrStep.AniClipName);
            /////////////////////////////////////////////////////////判断继续类型
            if (CurrStep.ContiKind == ContinueKind.Continue)
            {
                Next();
            }
            else if (CurrStep.ContiKind == ContinueKind.AnimationEnd)
            {
                ifAni = true;
            }
            else if (CurrStep.ContiKind == ContinueKind.CamArrived)
            {
                ifCheckPos = true;
            }
            else
            { }
        }
        else//结束
        {
            Debug.Log("步骤结束");
        }
    }
    public void Next()
    {
        Invoke("EndWork", CurrStep.DelayNextTime);
        Invoke("StepWork",CurrStep .DelayNextTime );
        CurrStepIndex++;
    }
    void EndWork()//节点的结束工作
    {
        //隐藏物体
        for (i = 0; i < CurrStep.DisObjAtEnd.Length; i++)
            CurrStep.DisObjAtEnd[i].SetActive(false);
    }
    void Update()
    {
        //检测动画结束
        if (ifAni)
        {
            if (!CurrStep.Anin.isPlaying)//结束
            {
                ifAni = false;
                Next();
            }
        }
        //检测到达位置
        if (ifCheckPos)
        {
            Dis = Mathf.Abs(CameraTrans.position.x - CurrStep.AimTrans.position.x) + Mathf.Abs(CameraTrans.position.z - CurrStep.AimTrans.position.z);
            if (Dis < 2)
            {
                ifCheckPos = false;
                CurrStep.AimTrans.gameObject.SetActive(false);
                CorrectAud.Play();
                Next();
            }
        }
    }
    public void LoadScene(int sNum)
    {
        SceneManager.LoadScene(sNum);
    }
}
//节点触发继续的类型：
public enum ContinueKind 
{
    Continue,//直接继续
    Wait,//等待交互
    CamArrived,//相机到达目标位置
    AnimationEnd//等待动画结束
};