using System.Collections.Generic;
using UnityEngine;

public class WorldPauseManager : MonoBehaviour
{
    public static WorldPauseManager Instance { get; private set; }

    private readonly HashSet<IPauseable> pauseables = new HashSet<IPauseable>();

    private void Awake()
    {
        if (Instance == null)
        {
            Instance = this;
        }
        else
        {
            Destroy(gameObject);
        }
    }

    public void Register(IPauseable pauseable)
    {
        if (pauseable != null) pauseables.Add(pauseable);
    }

    public void Unregister(IPauseable pauseable)
    {
        if (pauseable != null) pauseables.Remove(pauseable);
    }

    public void PauseWorld()
    {
        foreach (var p in pauseables)
        {
            p?.Pause();
        }
    }

    public void ResumeWorld()
    {
        foreach (var p in pauseables)
        {
            p?.Resume();
        }
    }
}