PGiZ3/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 = 25f;
        [SerializeField] private float parallaxSharpness = 15f;

        [SerializeField] private float logoAppearDuration = 0.3f;

        [SerializeField] private float logoPunchScale = 1.2f;
        [SerializeField] private float logoPunchDuration = 0.2f;
        [SerializeField] private float backgroundZoomSpeed = 15f;

        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);

            AddButtonHoverEffect(startGameButton);
            AddButtonHoverEffect(exitButton);
        }

        private void AddButtonHoverEffect(Button button)
        {
            var rect = button.GetComponent<RectTransform>();

            button.onClick.AddListener(() =>
            {
                rect.DOPunchScale(Vector3.one * 0.2f, 0.1f, 5, 0.5f);
            });
        }

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

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

            var logoSequence = DOTween.Sequence();
            logoSequence.Append(rect.DOScale(logoPunchScale, logoAppearDuration).SetEase(Ease.OutQuint))
                       .Join(logotype.DOColor(originalColor, logoAppearDuration).SetEase(Ease.OutQuint))
                       .Append(rect.DOScale(1f, 0.1f).SetEase(Ease.InOutSine));

            logoSequence.OnComplete(() =>
            {
                rect.DOPunchScale(Vector3.one * 0.1f, 0.3f, 3, 0.5f)
                    .SetLoops(-1, LoopType.Restart)
                    .SetEase(Ease.InOutSine);

                logotype.DOColor(new Color(originalColor.r, originalColor.g, originalColor.b, 0.8f), 0.2f)
                    .SetLoops(-1, LoopType.Yoyo)
                    .SetEase(Ease.InOutSine);
            });
        }

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

            var rect = backgroundImage.rectTransform;

            rect.DOScale(1.3f, backgroundZoomSpeed)
                .SetEase(Ease.InOutQuad)
                .SetLoops(-1, LoopType.Yoyo);

            rect.DORotate(new Vector3(0, 0, 2f), 10f)
                .SetEase(Ease.InOutSine)
                .SetLoops(-1, LoopType.Yoyo);
        }

        private void FadeIn()
        {
            _audioSource.volume = 0f;
            _audioSource.DOFade(1f, 0.5f).SetEase(Ease.OutQuint);

            fader.color = new Color(0, 0, 0, 1f);
            fader.DOFade(0f, 0.5f).SetEase(Ease.OutQuint);
            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 * parallaxSharpness
            );

            parallaxRoot.localPosition = _currentParallaxOffset;
        }
        
        private void OnStartGameClicked()
        {
            startGameButton.transform.DOPunchScale(Vector3.one * 0.3f, 0.2f, 5, 0.5f);
            FadeOutAndLoad("Gameplay");
        }
        
        private void OnExitButtonClicked()
        {
            exitButton.transform.DOPunchScale(Vector3.one * 0.3f, 0.2f, 5, 0.5f);
            FadeOutAndQuit();
        }

        private void FadeOutAndLoad(string sceneName)
        {
            fader.raycastTarget = true;

            var fadeSequence = DOTween.Sequence();
            fadeSequence.Join(_audioSource.DOFade(0, 0.3f).SetEase(Ease.InQuint))
                       .Join(fader.DOFade(1f, 0.3f).SetEase(Ease.InQuint))
                       .OnComplete(() =>
                       {
                           SceneManager.LoadScene(sceneName);
                       });
        }

        private void FadeOutAndQuit()
        {
            fader.raycastTarget = true;
            
            var fadeSequence = DOTween.Sequence();
            fadeSequence.Join(_audioSource.DOFade(0, 0.3f).SetEase(Ease.InQuint))
                       .Join(fader.DOFade(1f, 0.3f).SetEase(Ease.InQuint))
                       .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);

            DOTween.KillAll();
        }
    }
}