Coroutine helper

CoroutineHelper.cs

using UnityEngine;
using System.Collections;

/// <summary>
/// A helper class to start coroutines from non-MonoBehaviour classes.
///
/// Usage:
/// To start a coroutine from a non-MonoBehaviour class, call CoroutineHelper.Instance.StartHelperCoroutine(yourCoroutine).
/// Example:
/// IEnumerator YourCoroutine()
/// {
///     // Your coroutine logic here
///     yield return null;
/// }
/// 
/// CoroutineHelper.Instance.StartHelperCoroutine(YourCoroutine());
/// </summary>
public class CoroutineHelper : MonoBehaviour
{
    private static CoroutineHelper _instance;

    /// <summary>
    /// Gets the singleton instance of the CoroutineHelper.
    /// If it doesn't exist, it creates a new GameObject and attaches this component to it.
    /// </summary>
    public static CoroutineHelper Instance
    {
        get
        {
            if (_instance == null)
            {
                GameObject obj = new GameObject("CoroutineHelper");
                _instance = obj.AddComponent<CoroutineHelper>();
                DontDestroyOnLoad(obj);
            }
            return _instance;
        }
    }

    /// <summary>
    /// Starts a coroutine using the singleton instance of CoroutineHelper.
    /// </summary>
    /// <param name="coroutine">The coroutine to start.</param>
    public void StartHelperCoroutine(IEnumerator coroutine)
    {
        StartCoroutine(coroutine);
    }
}