PGiZ4/Assets/Code/UI/GameplayController.cs

using TMPro;
using UnityEngine;
using UnityEngine.SceneManagement;
using UnityEngine.UI;
using PrimeTween;

namespace Code.UI
{
    public class GameplayController : MonoBehaviour
    {
        public static GameplayController Instance;

        [SerializeField] private TMP_Text coinsText;
        [SerializeField] private CanvasGroup deathPanelCanvasGroup;
        [SerializeField] private RectTransform deathPanelWindow;
        [SerializeField] private TMP_Text finalResultText;
        [SerializeField] private TMP_InputField nameInputField;
        [SerializeField] private Button restartButton;
        [SerializeField] private Button exitButton;

        private int _coins;

        private void Awake() => Instance = this;

        private void Start()
        {
            Time.timeScale = 1;

            if (deathPanelCanvasGroup != null)
            {
                deathPanelCanvasGroup.gameObject.SetActive(false);
                deathPanelCanvasGroup.alpha = 0;
            }

            var player = GameObject.FindGameObjectWithTag("Player")?.GetComponent<Gameplay.Player.PlayerController>();
            if (player != null) player.OnPlayerDeath += ShowDeathScreen;
            
            restartButton.onClick.AddListener(RestartGame);
            exitButton.onClick.AddListener(ExitGame);
        }

        public void AddCoin()
        {
            _coins++;
            coinsText.text = $"{_coins} Coins";
        }

        private void ShowDeathScreen()
        {
            deathPanelCanvasGroup.gameObject.SetActive(true);

            Tween.Alpha(deathPanelCanvasGroup, startValue: 0f, endValue: 1f, duration: 0.5f, ease: Ease.OutSine, useUnscaledTime: true);

            deathPanelWindow.localScale = Vector3.zero;
            Tween.Scale(deathPanelWindow, endValue: 1f, duration: 0.6f, ease: Ease.OutBack, useUnscaledTime: true)
                .OnComplete(() => {
                    Time.timeScale = 0; 
                });

            finalResultText.text = $"You collected: {_coins} coins";
        }

        private void RestartGame()
        {
            SaveScore();
            Time.timeScale = 1;
            SceneManager.LoadScene(SceneManager.GetActiveScene().name);
        }

        private void ExitGame()
        {
            SaveScore();
            Time.timeScale = 1;
            SceneManager.LoadScene("MainMenu");
        }

        private void SaveScore()
        {
            var playerName = nameInputField.text;
            if (string.IsNullOrEmpty(playerName))
                playerName = "Player";
            Debug.Log($"Saved: {playerName} - {_coins}");
        }

        private void OnDestroy()
        {
            restartButton.onClick.RemoveAllListeners();
            exitButton.onClick.RemoveAllListeners();

            var player = GameObject.FindGameObjectWithTag("Player")?.GetComponent<Gameplay.Player.PlayerController>();
            if (player != null) player.OnPlayerDeath -= ShowDeathScreen;
        }
    }
}