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

public class LoadManager : MonoBehaviour
{
    private AsyncOperation asyncLoad;

    [Header("Scene Name (must match Build Settings)")]
    [SerializeField] private string sceneName;

    void Start()
    {
        PreloadNextScene(sceneName);
    }

    public void PreloadNextScene(string sceneName)
    {
        StartCoroutine(LoadSceneAsync(sceneName));
    }

    IEnumerator LoadSceneAsync(string sceneName)
    {
        asyncLoad = SceneManager.LoadSceneAsync(sceneName);
        asyncLoad.allowSceneActivation = false;

        while (!asyncLoad.isDone)
        {
            Debug.Log("Loading: " + (asyncLoad.progress * 100f) + "%");

            if (asyncLoad.progress >= 0.9f)
            {
                Debug.Log("Scene ready to activate");
                yield break;
            }

            yield return null;
        }
    }

    public void ActivateScene()
    {
        if (asyncLoad != null)
        {
            asyncLoad.allowSceneActivation = true;
        }
    }
}