gameManager (rogue)

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

public class GameManager : MonoBehaviour
{
    public float levelStartDelay = 2.2f;
    public float turnDelay = .1f;

    public static GameManager instance = null;
    public BoardManager boardScript;

    public int playerFoodPoints = 100;
    [HideInInspector] public bool playersTurn = true;

    private int level = 1  ;
    private List<Enemy> enemies;
    private bool        enemiesMoving;
    private Text levelText;
    private GameObject levelImage;

    private bool doingSetup;


    // Start is called before the first frame update
    void Awake()
    {
        Debug.Log("GM: Awake"  );
        if ( instance == null ){
            instance = this;
        }else if( instance != this){
            Destroy(gameObject);
        }

        DontDestroyOnLoad(gameObject);

        enemies = new List<Enemy>();
        boardScript = GetComponent<BoardManager>();
        InitGame();

    }

    private void OnLevelWasLoaded( int index)
    {
        level++;
        Debug.Log("GM: OnLevelWasLoaded" + level);
        InitGame();

    }
    void InitGame()
    {
        doingSetup = true;

        levelImage = GameObject.Find("LevelImage");
        levelText = GameObject.Find("LevelText").GetComponent<Text>();
        levelText.text = "Day " + level;
        levelImage.SetActive(true);
        Invoke("HideLevelImage", levelStartDelay);
        enemies.Clear();
        boardScript.SetupScene(level);
    }

    private void HideLevelImage()
    {
        levelImage.SetActive(false);
        doingSetup = false;
    }

    public void GameOver()
    {
        levelText.text = "After " + level + " days, you starved.";
        levelImage.SetActive(true);

        enabled = false;
    }

    IEnumerator MoveEnemies()
    {
        enemiesMoving= true;
        yield return new WaitForSeconds(turnDelay);

        if( enemies.Count == 0){
            yield return new WaitForSeconds(turnDelay);
        }

        for(int i=0;i< enemies.Count ; i++){
            enemies[i].MoveEnemy();
            yield return new WaitForSeconds(enemies[i].moveTime);
        }

        playersTurn = true;
        enemiesMoving = false;
    }

    // Update is called once per frame
    void Update()
    {
        if(playersTurn || enemiesMoving || doingSetup)
            return ;
            //https://docs.unity3d.com/530/Documentation/ScriptReference/Application.Quit.html
            if (Input.GetKey("escape")){
                Application.Quit();
            }


        StartCoroutine(MoveEnemies());
    }

    public void AddEnemyToList(Enemy script){
        enemies.Add(script);

    }

}