meh

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

public class Grid : MonoBehaviour {
    [SerializeField]
    private GameObject SquareEmpty, SquareFilled, outLine;
    [SerializeField]
    private GameObject[,] array;
    [SerializeField]
    private AudioSource ASstep, ASgood, ASbad, ASQuestionInput;
    [SerializeField]
    private AudioClip recapClip;
    [SerializeField]
    private TextAsset[] textFiles;
    [HideInInspector]
    public int thisTextFile;

    private int selectX, selectY;

    [SerializeField]
    private AudioSource ACgood, ACbad, ACQuestion;
    [SerializeField]
    private AudioClip introToNextLevel;
    [HideInInspector]
    public bool inputEnabled = true;
    [SerializeField]
    private string nextLevel;

    private KeyCode correctKey;

    private KeyCode[] keys = {
        KeyCode.Alpha1,
        KeyCode.Alpha2,
        KeyCode.Alpha3,
        KeyCode.Alpha4
    };

    void Start()  {
        selectX = 0;
        selectY = 0;
        inputEnabled = true;

        thisTextFile = Random.Range(0, textFiles.Length - 1);
        correctKey = keys[thisTextFile];

        int[,] textArray = FileToArray(textFiles[thisTextFile].name + ".txt");
        array = new GameObject[textArray.GetLength(0), textArray.GetLength(1)];

        for (int y = 0; y < textArray.GetLength(1); ++y)
        {
            for (int x = 0; x < textArray.GetLength(0); ++x)
            {
                if (textArray[x, y] == 1)
                {
                    GameObject t = Instantiate(SquareFilled, new Vector3Int(y, -x, 0), Quaternion.identity);
                    array[x, y] = t;
                }
                else
                {
                    GameObject t = Instantiate(SquareEmpty, new Vector3Int(y, -x, 0), Quaternion.identity);
                    array[x, y] = t;
                }
            }
        }
    }

    void Update() {
        int oldX = selectX;
        int oldY = selectY;

        if (inputEnabled)
        {
            if (selectY != -(array.GetLength(0) - 1) && Input.GetKeyUp(KeyCode.DownArrow))
                selectY--;
            if (selectY != 0 && Input.GetKeyUp(KeyCode.UpArrow))
                selectY++;
            if (selectX != 0 && Input.GetKeyUp(KeyCode.LeftArrow))
                selectX--;
            if (selectX != array.GetLength(1) - 1 && Input.GetKeyUp(KeyCode.RightArrow))
                selectX++;

            if (Input.GetKeyDown(correctKey))
            {
                if (SceneManager.GetActiveScene().name == "Level3")
                {
                    StartCoroutine(GoodEndSequence());
                }
                else {
                    inputEnabled = false;
                    StartCoroutine(GoToNextScene());
                }
            }
            else if (Input.GetKeyDown(keys[0]) || Input.GetKeyDown(keys[1]) || Input.GetKeyDown(keys[2]) || Input.GetKeyDown(keys[3])) {
                StartCoroutine(BadEndSequence());
            }
        }

        outLine.transform.position = new Vector3(selectX, selectY, 0);

        if (oldX != selectX || oldY != selectY)
        {
            if (array[-selectY, selectX].GetComponent<SpriteRenderer>().color.r < 1)
            {
                ASgood.Play();
            }
            else
            {
                ASbad.pitch = Random.Range(0.8f, 1.2f);
                ASbad.Play();
            }

            //topleft corner try input and go next scene
            if (selectX == 0 && selectY == 0 && !ASQuestionInput.isPlaying)
            {
                ASQuestionInput.clip = recapClip;
                ASQuestionInput.Play();
            }
        }

    }

    public int[,] FileToArray(string msg)
    {
        string input = File.ReadAllText("Assets/TextFiles/" + SceneManager.GetActiveScene().name + "/" + msg);
        int i = 0, j = 0;
        int[,] result = new int[10, 10];
        foreach (var row in input.Split('\n'))
        {
            j = 0;
            foreach (var col in row.Trim().Split(' '))
            {
                result[i, j] = int.Parse(col.Trim());
                j++;
            }
            i++;
        }
        int[,] result2 = new int[i, j];
        for (int x = 0; x < i; ++x)
        {
            for (int y = 0; y < j; ++y)
            {
                result2[x, y] = result[x, y];
            }
        }
        return result2;
    }

    IEnumerator GoToNextScene() {
        ACQuestion.Stop();
        yield return loadClip(introToNextLevel);
        SceneManager.LoadScene(nextLevel);
    }

    IEnumerator loadClip(AudioClip audioclip)
    {
        ACQuestion.clip = audioclip;
        ACQuestion.Play();
        yield return new WaitForSeconds(ACQuestion.clip.length);
    }

    IEnumerator GoodEndSequence()
    {
        ACQuestion.Stop();
        yield return null;
        SceneManager.LoadScene("GoodEnd");
    }

    IEnumerator BadEndSequence()
    {
        ACQuestion.Stop();
        yield return null;
        SceneManager.LoadScene("BadEnd");
    }
}