evershade/Assets/Scripts/UI/LoadingScreenUIController.cs

using UnityEngine;

namespace UI
{
    public class LoadingScreenUIController : MonoBehaviour
    {
        public GameObject loadingScreen;
        public float displayStartTime;

        // min time to show the loading screen (in seconds)
        [SerializeField] private float minTimeToShow = 2.0f;

        public static LoadingScreenUIController Instance { get; private set; }

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


        // check if the loading screen should be displayed
        private void Update()
        {
            if (Time.time - displayStartTime > minTimeToShow) HideLoadingScreen();
        }

        // display the loading screen
        public void ShowLoadingScreen()
        {
            loadingScreen.SetActive(true);
        }

        // hide the loading screen
        public void HideLoadingScreen()
        {
            loadingScreen.SetActive(false);
        }

        // trigger the loading screen
        public void TriggerLoadingScreen()
        {
            displayStartTime = Time.time;
            ShowLoadingScreen();
        }
    }
}