GAMEENGINE3_Valley_Runner_SCHUSTER_Joe/Valley_Runner/Assets/Scripts/GameManager.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine.SceneManagement;
using TMPro;
using UnityEditor.Overlays;
using UnityEngine.UI;
using UnityEngine;

public class GameManager : MonoBehaviour
{
    public List<GameObject> targets;
    public int score;
    public TextMeshProUGUI scoreText;
    public TextMeshProUGUI gameOverText;
    private float spawnRate = 1.0f;
    public Button restartButton;
    public bool isGameActive;
    public GameObject titleScreen;
    
    //for safe and load
    public int diff;
    // Start is called once before the first execution of Update after the MonoBehaviour is created
    void Start()
    {
        

    }

    public void StartGame(int difficulty)
    {
        isGameActive = true;
        StartCoroutine(SpawnTarget());
        score = 0;
        UpdateScore(0);
        titleScreen.gameObject.SetActive(false);
        spawnRate /= difficulty;
        diff = difficulty;
    }

    public void RestartGame()
    {
        SceneManager.LoadScene(SceneManager.GetActiveScene().name);
    }
    public void GameOver()
    {
        gameOverText.gameObject.SetActive(true);
        restartButton.gameObject.SetActive(true);
        isGameActive = false;
    }
        IEnumerator SpawnTarget()
        {
            while (isGameActive)
            {
                yield return new WaitForSeconds(spawnRate);
                int index = Random.Range(0, targets.Count);
                Instantiate(targets[index]);
                
            }
        }

        public void UpdateScore(int scoreToAdd)
        {
            score += scoreToAdd;
            scoreText.text = "Score: " + score;
        }


        public void SaveGame()
        {
            SaveSystem.SaveGame(this);
        }



        public void LoadGame()
        {
            GameData data = SaveSystem.LoadGame();


            score = data.score;
            scoreText.text = "Score: " + score;
            diff=data.difficulty;

        }
    // Update is called once per frame
    void Update()
    {
        if(Input.GetKeyDown(KeyCode.Q))
        {
            SaveGame();
        }
        
        if(Input.GetKeyDown(KeyCode.E))
        {
            LoadGame();
        }
    }
}