corontinue impl

corontinue.cs

using System;
using System.Collections;
using System.Collections.Generic;

                //your application logic
public class MyGameObject : MonoBehaviour
{
    public override void Awake()
    {
        StartCorontinue(MyCorontinueMethod());
    }

    IEnumerator MyCorontinueMethod()
    {
        print("1");
        yield return null;
        print("2");
        yield return null;
        print("3");
        yield return null;
        while (true)
        {
            print("Update Corontinue");
            yield return null;
        }
    }


    public override void Update()
    {
        print("Update");
    }

}


                        //unity engine logic

public class MonoBehaviour
{
    public MonoBehaviour()
    {
        UnityMainLoop.monoBehaviours.Add(this);
        Awake();
    }

    public virtual void Awake()
    {
        
    }
    public virtual void Update()
    {
        
    }
    
    public void StartCorontinue(IEnumerator cor)
    {
        UnityMainLoop.corontinues.Add(cor);
    }
    public static void print(object o)
    {
        Console.WriteLine(o);
    }

}

class UnityMainLoop
{
    public static List<IEnumerator> corontinues = new List<IEnumerator>();
    public static List<MonoBehaviour> monoBehaviours = new List<MonoBehaviour>();
    public static void Main2()
    {
        var myScript = new MyGameObject(); // semplified unity main loop
        while (true)
        {
            //Unity corontinues execution 
            for (int i = corontinues.Count - 1; i >= 0; i--)
            {
                var a = corontinues[i];
                if (!a.MoveNext())
                    corontinues.Remove(a);
            }

            //update execution
            foreach (var a in monoBehaviours)
                a.Update();
        }
    }


}