PGiZ2/Assets/Code/UI/MainMenuController.cs

using Code.DI;
using Code.Input;
using DG.Tweening;
using TMPro;
using UnityEngine;
using UnityEngine.SceneManagement;
using UnityEngine.UI;

namespace Code.UI
{
    public class MainMenuController : MonoBehaviour
    {
        [SerializeField] private TMP_Text logotype;
        [SerializeField] private Button startGameButton;
        [SerializeField] private Button exitButton;
        [SerializeField] private Transform parallaxRoot;

        [SerializeField] private Image fader;
        [SerializeField] private Image backgroundImage;

        [SerializeField] private float parallaxStrength = 15f;
        [SerializeField] private float parallaxSmoothTime = 0.1f;

        private Vector3 _targetParallaxOffset;
        private Vector3 _currentParallaxOffset;
        private IInputService _inputService;
        private AudioSource _audioSource;
        
        private void Start()
        {
            var container = FindFirstObjectByType<DIContainer>();
            _inputService = container.Resolve<IInputService>();
            _inputService.EnableMap(ActionMapping.MainMenu);
            _audioSource = FindFirstObjectByType<AudioSource>();
            
            SetupButtons();
            AnimateLogo();
            AnimateBackground();
            FadeIn();
        }

        private void SetupButtons()
        {
            startGameButton.onClick.AddListener(OnStartGameClicked);
            exitButton.onClick.AddListener(OnExitButtonClicked);
        }

        private void AnimateLogo()
        {
            var rect = logotype.rectTransform;
            var originalColor = logotype.color;

            rect.localScale = Vector3.zero;
            rect.rotation = Quaternion.Euler(0, 0, -20f);
            logotype.color = new Color(originalColor.r, originalColor.g, originalColor.b, 0f);

            var logoSequence = DOTween.Sequence();
            logoSequence.Append(rect.DOScale(Vector3.one * 1.2f, 0.6f).SetEase(Ease.OutBack))
                       .Join(rect.DORotate(Vector3.zero, 0.6f).SetEase(Ease.OutSine))
                       .Join(logotype.DOColor(originalColor, 0.6f));

            logoSequence.OnComplete(() =>
            {
                rect.DOScale(new Vector3(1.08f, 1.08f, 1f), 5f)
                    .SetLoops(-1, LoopType.Yoyo)
                    .SetEase(Ease.InOutSine);

                logotype.DOColor(new Color(originalColor.r, originalColor.g, originalColor.b, 0.6f), 3f)
                    .SetLoops(-1, LoopType.Yoyo)
                    .SetEase(Ease.InOutSine);
            });
        }

        private void AnimateBackground()
        {
            if (backgroundImage == null) return;

            var rect = backgroundImage.rectTransform;

            rect.DOScale(1.2f, 25f)
                .SetLoops(-1, LoopType.Yoyo)
                .SetEase(Ease.InOutSine);
        }

        private void FadeIn()
        {
            _audioSource.volume = 0f;
            _audioSource.DOFade(1f, 1f).SetEase(Ease.Linear);
            fader.color = new Color(0, 0, 0, 1f);
            fader.DOFade(0f, 1f).SetEase(Ease.Linear);
            fader.raycastTarget = false;
        }

        private void Update()
        {
            HandleParallax();
        }

        private void HandleParallax()
        {
            if (!parallaxRoot) return;

            var mousePos = _inputService.MainMenuParalax;
            var center = new Vector2(Screen.width / 2f, Screen.height / 2f);

            if (center.x == 0 || center.y == 0) return;

            var offset = (mousePos - center) / center;
            _targetParallaxOffset = new Vector3(
                -offset.x * parallaxStrength,
                -offset.y * parallaxStrength,
                0f
            );

            _currentParallaxOffset = Vector3.Lerp(
                _currentParallaxOffset,
                _targetParallaxOffset,
                Time.deltaTime / parallaxSmoothTime
            );

            parallaxRoot.localPosition = _currentParallaxOffset;
        }
        
        private void OnStartGameClicked() => FadeOutAndLoad("Gameplay2");
        
        private void OnExitButtonClicked() => FadeOutAndQuit();

        private void FadeOutAndLoad(string sceneName)
        {
            fader.raycastTarget = true;
            _audioSource.DOFade(0, 0.8f).SetEase(Ease.Linear);
            fader.DOFade(1f, 0.8f).OnComplete(() =>
            {
                SceneManager.LoadScene(sceneName);
            });
        }

        private void FadeOutAndQuit()
        {
            fader.raycastTarget = true;
            _audioSource.DOFade(0, 0.8f).SetEase(Ease.Linear);
            fader.DOFade(1f, 0.8f).OnComplete(() =>
            {
#if UNITY_EDITOR
                UnityEditor.EditorApplication.isPlaying = false;
#else
                Application.Quit();
#endif
            });
        }

        private void OnDestroy()
        {
            _inputService?.DisableMap(ActionMapping.MainMenu);
            _inputService?.DisableMap(ActionMapping.Gameplay);
            startGameButton?.onClick.RemoveListener(OnStartGameClicked);
            exitButton?.onClick.RemoveListener(OnExitButtonClicked);
        }
    }
}