/**
 * @File   : TaskManager.cs
 * @Author : dtysky (dtysky@outlook.com)
 * @Link   : dtysky.moe
 * @Date   : 2019/09/09 0:00:00PM
 */
using UnityEngine;
using UnityEditor;
using System.Collections;
using System.Collections.Generic;

namespace SeinJS
{
    public class TaskManager
    {
        List<IEnumerator> _tasks;
        IEnumerator _current = null;

        public TaskManager()
        {
            _tasks = new List<IEnumerator>();
        }

        public void addTask(IEnumerator task)
        {
            _tasks.Add(task);
        }

        public void clear()
        {
            _tasks.Clear();
        }

        public bool play()
        {
            if (_tasks.Count > 0)
            {
                if (_current == null || !_current.MoveNext())
                {
                    _current = _tasks[0];
                    _tasks.RemoveAt(0);
                }
            }

            if (_current != null)
                _current.MoveNext();

            if (_current != null && !_current.MoveNext() && _tasks.Count == 0)
                return false;

            return true;
        }
    }
}