Loading a diffrent script to a public field at runtime.

Unity Engine
,
1

Hello!
So i have 2 scripts Dialogue and Npc.
On both of the scripts i have a public string[ ] sentences
I want to have multiple npc-s and when ever i go talk to the npc i want to load the Npc public string senteceses to Dialogue public string sentences.
For npc acctivation i am using raycasting and when ever it detecs the tag npc it starts the Dialogue script.

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

public class Dialog2nd : MonoBehaviour
{
    public TextMeshProUGUI textDisplay;
    public string[] sentences;
    private int index;
    public float typingSpeed;

    public GameObject continueButton;
    public GameObject dialogUI;

    public PlayerController PlayerCtrl;


    void Start()
    {
        dialogUI.SetActive(false);
    }
    void Update()
    {
        if(textDisplay.text == sentences[index])
        {
            continueButton.SetActive(true);
        }

    }
    public IEnumerator Type()
    {
        dialogUI.SetActive(true);
        Debug.Log("Running corutine Type()");
        foreach(char letter in sentences[index].ToCharArray())
        {
            textDisplay.text += letter;
            yield return new WaitForSeconds(typingSpeed);
        }
    }

    public void NextSetence()
    {
        continueButton.SetActive(false);

        if (index < sentences.Length - 1)
        {
            index++;
            textDisplay.text = "";
            StartCoroutine(Type());
        }else
        {
            textDisplay.text = "";
            continueButton.SetActive(false);
            PlayerCtrl.NpcUnInteract();


        }
    }


}

if (Input.GetKeyDown(Use))
        {
            RaycastHit hit;
            Ray ray = new Ray(transform.position, transform.forward);

            if (Physics.Raycast(ray, out hit, range))
            {
                if (hit.collider.tag == "Npc" && IsInDialog == false)
                {
                    NpcInteratct();
                }

            }


        }
    public void NpcInteratct()
    {
        StartCoroutine(dialog.Type());
        LastMouseSens = mouse.mouseSens;
        IsInDialog = true;
        Time.timeScale = 1f;
        Cursor.lockState = CursorLockMode.Confined;
        mouse.mouseSens = 0f;
        DialogueUi.SetActive(true);
    }
2

Ok… how do you store your dialogue data and associate a particular set of dialogue to a particular NPC?

3

On every npc there is a NPC script which stores the data.

4

Ok simple then. I would change your Type() coroutine to take a parameter like this:

    public IEnumerator Type(string[] dialogue)
    {
        dialogUI.SetActive(true);
        Debug.Log("Running corutine Type()");
        foreach(char letter in dialogue[index].ToCharArray())
        {
            textDisplay.text += letter;
            yield return new WaitForSeconds(typingSpeed);
        }
    }

Then change your raycast code like this:

if (Input.GetKeyDown(Use))
        {
            RaycastHit hit;
            Ray ray = new Ray(transform.position, transform.forward);
            if (Physics.Raycast(ray, out hit, range))
            {
                if (hit.collider.tag == "Npc" && IsInDialog == false)
                {
                    NPC npc = hit.collider.GetComponent<NPC>();
                    string[] dialogue = npc.DialogueSentences;
                    NpcInteratct(dialogue);
                }
            }
        }
    public void NpcInteratct(string[] dialogue)
    {
        StartCoroutine(dialog.Type(dialogue));
        LastMouseSens = mouse.mouseSens;
        IsInDialog = true;
        Time.timeScale = 1f;
        Cursor.lockState = CursorLockMode.Confined;
        mouse.mouseSens = 0f;
        DialogueUi.SetActive(true);
    }

I made some assumptions about your NPC script:

  • That it is called NPC
  • That the dialogue data on the script is called “DialogueSentences”

Just change my code with whatever the real names of those things are and you should be good to go.

5

Thank you but there is one more issue
so there is an error on StartCorutine(Type()); in the if statment
When i write StartCorutine(Type(dialogue)); it still gives me an error

public void NextSetence()
    {
        continueButton.SetActive(false);

        if (index < sentences.Length - 1)
        {
            index++;
            textDisplay.text = "";
            StartCoroutine(Type());
        }else
        {
            textDisplay.text = "";
            continueButton.SetActive(false);
            PlayerCtrl.NpcUnInteract();


        }
    }
6

You are not passing the arguments to Type() that it expects.