Dialogue System : How To Have A Conversation Between Two Npcs ?

Unity Engine
1

Hi everyone ! I made a dialogue system in my narrative game for school using Brackeys tutorial (

). All is working well, except I just don’t know how to go from one NPC to another…

He says at some point to create a second game object with the dialogue script attached to it. But how to I tell the game to change to the second NPC’s dialogue once the first one is over (so that the NPC name changes for example) ? And then to go back to the first NPC ? (basically to make them have a conversation) I’m still very new to Unity and I really don’t know how to pull this off… My guess is that in the if(sentences.COunt == 0) under the DisplayNextSentence method I should tell Unity to play the next NPC instead of that useless EndDialogue() method (there used to be just a print “End Dialogue” in this method but I took it off) but I don’t really know how to play this…

this is what the dialogueTrigger code looks like :

public class DialogueManager : MonoBehaviour {

    public Text nameText;
    public Text dialogueText;

    private Queue<string> sentences;

    void Start () {
        sentences = new Queue<string>();
    }

    public void StartDialogue(Dialogue dialogue)
    {

        nameText.text = dialogue.name;
        sentences.Clear();

        foreach(string sentence in dialogue.sentences)
        {
            sentences.Enqueue(sentence);
        }
        DisplayNextSentence();
    }

    public void DisplayNextSentence()
    {
        if (sentences.Count == 0)
        {
            EndDialogue();
            return;
        }
        string sentence = sentences.Dequeue();
        StopAllCoroutines();
        StartCoroutine(TypeSentence(sentence));
    }

    //Typewriter effect
    IEnumerator TypeSentence(string sentence)
    {
        dialogueText.text = "";
        foreach (char letter in sentence.ToCharArray())
        {
            dialogueText.text += letter;
            yield return null;
        }
    }

    void EndDialogue()
    {
    }

    void Update()
    {
        //Continue with return and space key
        if(Input.GetKeyDown(KeyCode.Return))
        {
            DisplayNextSentence();
        }

        if (Input.GetKeyDown(KeyCode.Space))
        {
            DisplayNextSentence();
        }
    }
}

thank you very much for your help !

2

The easiest way would probably be by firing events. Here’s a tutorial: Events - Unity Learn