Timer.cs

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

public class Timer : MonoBehaviour
{
    [HideInInspector] public float timer = 0f;
    [HideInInspector] public bool isTimerZero = false;
    [HideInInspector] public int timerTweenId;

    public TextMeshProUGUI timerUI;
    [SerializeField] private LeanTweenType tweenType;
    [SerializeField] private float animDuration = 0.5f;

    private bool isTimerStopped = false;

    [SerializeField] private GameObject winPanel;
    [SerializeField] private GameObject losePanel;

    private float currentLevelDurationTime= 0f;

    private bool isCriticalFlag = false;
    private void Start()
    {
        timerUI = GetComponent<TextMeshProUGUI>();
        timer = GameManager.Instance.GetCurrentCricketLevelData().time;
        Debug.Log($"Current timer: {timer}");

        currentLevelDurationTime = GameManager.Instance.GetCurrentCricketLevelData().time;
    }

    private void Update()
    {
        if(isTimerCriticalLow(currentLevelDurationTime) && !isTimerStopped && !isCriticalFlag)
        {
            AnimateTimer();
            ChangeTimerColor(Color.red);
            isCriticalFlag = true;
        }

        if (timer > 0 && !isTimerStopped)
        {
            timer -= Time.deltaTime;
            UpdateTimerUI();
        }
        else if (timer <= 0 && !isTimerStopped)
        {
            Debug.Log("You lose");
            UIManager.Instance.PopUpAnim(losePanel, Vector3.one);
            SoundManager.PlaySound(SoundType.LOSE, 10f);
            LeanTween.cancel(timerTweenId);
            ChangeTimerColor(Color.white);
            UpdateTimerUI();
            StopTimer();
        }
    }

    public void UpdateTimerUI()
    {
        string timeString = string.Format("{0}:{1:00}", (int)timer / 60, (int)timer % 60);
        timerUI.text = timeString;
    }
    public void AnimateTimer()
    {
        timerTweenId = LeanTween.scale(timerUI.gameObject, new Vector3(1.5f, 1.5f, 1.5f), animDuration).setEase(tweenType).setLoopPingPong().id;
    }

    public void ChangeTimerColor(Color color)
    {
        timerUI.color = color;
    }

    public bool isTimerCriticalLow(float levelDuration)
    {
        return timer < levelDuration / 5f; // less than 20%
    }

    public void StopTimer()
    {
        isTimerStopped = true;
        isCriticalFlag = false;
    }
}