aibis-dream/Assets/Scripts/Game Loop/StartMenu.cs

using System.Collections;
using System.Collections.Generic;
using AibisDream.Kit;
using TMPro;
using UnityEngine;
using UnityEngine.UI;

namespace AibisDream {
    public class StartMenu : Singleton<StartMenu>
    {
        [SerializeField] private Button startButton;
        [SerializeField] private Button selectLevelButton;
        [SerializeField] private Button quitButton;

        [SerializeField] private GameObject startTab;
        [SerializeField] private GameObject levelTab;
        [SerializeField] private GameObject buttonPrefab;

        private void OnEnable()
        {
            startButton.onClick.AddListener(StartGame);
            selectLevelButton.onClick.AddListener(SelectLevel);
            quitButton.onClick.AddListener(QuitGame);
        }

        private void OnDisable()
        {
            startButton?.onClick.RemoveListener(StartGame);
            selectLevelButton?.onClick.RemoveListener(SelectLevel);
            quitButton?.onClick.RemoveListener(QuitGame);
        }

        public void StartGame()
        {
            GameLoopManager.Instance.StartNewGame();
        }

        public void SelectLevel()
        {
            SwitchToLevelTab();
        }

        private void SwitchToLevelTab()
        {
            startTab.SetActive(false);
            levelTab.SetActive(true);
        }

        private void SwitchToStartTab()
        {
            startTab.SetActive(true);
            levelTab.SetActive(false);
        }

        public void QuitGame()
        {
            Application.Quit();
        }
        
        public void HideStartMenu()
        {
            gameObject.SetActive(false);
        }
    }
}