station_obscurum_unity/Assets/Scripts/MainMenu/MainMenuManager.cs

using System.Collections;
using System.Collections.Generic;
using TMPro;
using UnityEngine;
using UnityEngine.SceneManagement;
using UnityEngine.UI;

namespace UI
{
    public class MainMenuManager : MonoBehaviour
    {
        [SerializeField] private TMP_Text title;

        [SerializeField] private List<TMP_Text> textList = new();

        [SerializeField] private float dilateSpeed = 0.1f;

        [SerializeField] private Animator cover;

        private readonly string component = "_FaceDilate";
        private float dilate = -1;
        private readonly List<float> dilates = new();
        private float initDilate;
        private readonly List<float> initDilates = new();
        private bool transitioning;

        // Start is called before the first frame update
        private void Start()
        {
            //initDilate = title.fontSharedMaterials[0].GetFloat(component);
            initDilate = title.fontMaterials[0].GetFloat(component);


            foreach (var text in textList)
            {
                initDilates.Add(text.fontMaterials[0].GetFloat(component));
                dilates.Add(-1f);
            }

            textList[0].GetComponent<Button>().onClick.AddListener(LoadFirstLevel);
            textList[2].GetComponent<Button>().onClick.AddListener(ExitApp);
        }


        // Update is called once per frame
        private void Update()
        {
            //dilate = Mathf.Min(initDilate, dilate += Time.deltaTime);
            dilate = Mathf.Lerp(dilate, initDilate, Time.deltaTime * dilateSpeed);
            title.fontMaterials[0].SetFloat(component, dilate);
            for (var i = 0; i < textList.Count; i++)
            {
                dilates[i] = Mathf.Lerp(dilates[i], initDilates[i], Time.deltaTime * dilateSpeed);
                textList[i].fontMaterials[0].SetFloat(component, dilates[i]);
            }
        }

        private void LoadFirstLevel()
        {
            if (!transitioning)
            {
                cover.Play("Cover_load_out");
                transitioning = true;
                StartCoroutine(_LoadFirstLevel());
            }
        }

        private IEnumerator _LoadFirstLevel()
        {
            yield return new WaitForSeconds(4);
            SceneManager.LoadScene(1);
        }

        private void ExitApp()
        {
            Application.Quit();
        }
    }
}