Get random line from text file

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  I just decided to learn game dev about 3-4 months ago and mostly started following tutorials on YouTube and googling whatever questions that I had. I don't have a background or previous education or experience with any of it, so it can be confusing. I have a working piece of code that I spliced together from 2 different codes, it works, but I'd like it to work slightly differently. I spliced together a typewriter code and a text reader code, so as of now, the code below works as follows: It gets the entire text of the text file and writes it the UI textbox and therefore displays up to the first 3 lines of the text file that the size of the UI panel will allow. What I have tried with no success is for some way to make it so that only 1 random line of the text file will be displayed whenever the player accesses the scene. Here is what I have, thanks in advance for any guidance on the subject. This is for Unity and C#.

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

  public class FactGenerator : MonoBehaviour
  {
      public Text text;
      public TextAsset textFile;
      public bool playOnAwake = true;
      public float delayToStart;
      public float delayBetweenChars = 0.075f;
      public float delayAfterPunctuation = 0.0025f;

      private string story;
      private float originDelayBetweenChars;
      private bool lastCharPunctuation = false;
      private char charComma;
      private char charPeriod;

      public List<string> facts;
      public string[] lines;

      void Awake()
      {
          text = GetComponent<Text>();
          originDelayBetweenChars = delayBetweenChars;

          charComma = Convert.ToChar(44);
          charPeriod = Convert.ToChar(46);

          if (playOnAwake)
          {
              ChangeText(text.text, delayToStart);
          }
      }

      public void ChangeText(string textFile, float delayBetweenChars = 0f)
      {
          StopCoroutine(PlayText()); //stop Coroutine if exist
          story = Resources.Load<TextAsset>("dinofacts").text;
          text.text = ""; //clean text
          Invoke("Start_PlayText", delayBetweenChars); //Invoke effect
      }

      void Start_PlayText()
      {
          StartCoroutine(PlayText());
      }

  
      IEnumerator PlayText()
      {

          foreach (char c in story)
          {
              delayBetweenChars = originDelayBetweenChars;

              if (lastCharPunctuation)
              {
                  yield return new WaitForSeconds(delayBetweenChars = delayAfterPunctuation);
                  lastCharPunctuation = false;
              }

              if (c == charComma || c == charPeriod)
              {
                  lastCharPunctuation = true;
              }

              text.text += c;
              yield return new WaitForSeconds(delayBetweenChars);

              TextAsset factText = Resources.Load<TextAsset>("dinofacts");

              lines = textFile.text.Split("\r\n"[0]);

  
              bool addingFacts = true;

              for (int i = 0; i < lines.Length; i++)
              {
                  if (lines[i] == "facts:")
                  {
                      addingFacts = true;
                      Debug.Log("adding facts");
                      continue;
                  }
                  if (lines[i] != "")
                  {
                      if (addingFacts)
                      {
                          facts.Add(lines[i]);
                      }
                  }
              }
          }
      }
  }

  • Moved by Wendy ZangMicrosoft contingent staff Friday, February 1, 2019 1:57 AM

  Thursday, January 17, 2019 11:55 PM