* 겪고 있는 문제 상황을 최대한 자세하게 작성해주세요.

* 문제 해결을 위해 어떤 시도를 해보았는지 구체적으로 함께 알려주세요.

gameManger.cs

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


public class gameManager : MonoBehaviour
{
    public GameObject rain;
    public static gameManager I;
    public Text scoreText;
    public Text timeText;
    public GameObject panel;
    int totalScore;
    float timeLimit = 5f;


    void Awake()
    {
        I = this;
    }


    // Start is called before the first frame update
    void Start()
    {
        InvokeRepeating("makeRain", 0, 0.5f);
        initGame();
    }
    void initGame()
    {
        Time.timeScale = 1.0f;
        totalScore = 0;
        timeLimit = 30.0f;
    }
}


// Update is called once per frame
void Update()
    {
        timeLimit -= Time.deltaTime;
        if (timeLimit < 0)
        {
            Time.timeScale = 0.0f;
            panel.SetActive(true);
            timeLimit = 0.0f;
        }
        timeText.text = timeLimit.ToString("N2");
    }




    void makeRain()
    {
        Instantiate(rain);
    }


    public void addScore(int score)
    {
        totalScore += score;
        scoreText.text = totalScore.ToString();
    }


    public void retry()
    {
        SceneManager.LoadScene("MainScene");
    }