DialogueScript

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

public class DialogueManager : MonoBehaviour
{
    int Count = 0;

    public GameObject DialogueBox;
    public GameObject textBoxObj;
    public GameObject talkerTextBox;
    AudioSource SFX;

    private void Start()
    {
        SFX = this.GetComponent<AudioSource>();
    }

    public void StartDialogue(int count, string[] lines, string talker)
    {
        Count = count;

        DialogueBox.SetActive(true);
        talkerTextBox.GetComponent<TextMeshProUGUI>().text = talker;

        ChangeText(lines);
    }

    public void ChangeText(string[] lines)
    {
        if (Count >= lines.Length)
        {
            DialogueBox.SetActive(false);
            return;
        }

        textBoxObj.GetComponent<TextMeshProUGUI>().text = lines[Count];
        SFX.Play();

        StartCoroutine(WaitForKeyPress(lines));
    }

    private IEnumerator WaitForKeyPress(string[] lines)
    {
        bool done = false;
        while (!done)
        {
            if (Input.GetKeyDown(KeyCode.Space))
            {
                done = true;
            }
            yield return null;
        }
        Count++;
        ChangeText(lines);
    }
}