Hệ thống Dialogue (Hội thoại) cơ bản

// 1. ScriptableObject để chứa dữ liệu hội thoại
using UnityEngine;

[CreateAssetMenu(fileName = "New Dialogue", menuName = "Dialogue/Dialogue")]
public class DialogueData : ScriptableObject
{
    public string speakerName;
    [TextArea(3, 10)]
    public string[] sentences;
}

// 2. Script quản lý UI hội thoại
using UnityEngine;
using TMPro;
using System.Collections.Generic;
using System.Collections;

public class DialogueManager : MonoBehaviour
{
    public static DialogueManager Instance;
    public TextMeshProUGUI nameText;
    public TextMeshProUGUI dialogueText;
    public GameObject dialogueBox;

    private Queue<string> sentences;

    void Awake() { Instance = this; }

    void Start()
    {
        sentences = new Queue<string>();
        dialogueBox.SetActive(false);
    }

    public void StartDialogue(DialogueData dialogue)
    {
        dialogueBox.SetActive(true);
        nameText.text = dialogue.speakerName;
        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));
    }

    IEnumerator TypeSentence(string sentence)
    {
        dialogueText.text = "";
        foreach (char letter in sentence.ToCharArray())
        {
            dialogueText.text += letter;
            yield return new WaitForSeconds(0.02f);
        }
    }

    void EndDialogue()
    {
        dialogueBox.SetActive(false);
        Debug.Log("End of conversation.");
    }
}

// 3. Script để kích hoạt hội thoại (gắn vào NPC hoặc trigger)
using UnityEngine;

public class DialogueTrigger : MonoBehaviour
{
    public DialogueData dialogue;

    public void TriggerDialogue()
    {
        DialogueManager.Instance.StartDialogue(dialogue);
    }

    // Ví dụ: Kích hoạt khi va chạm với Player
    private void OnTriggerEnter(Collider other)
    {
        if(other.CompareTag("Player"))
        {
            TriggerDialogue();
            gameObject.SetActive(false); // Chỉ kích hoạt 1 lần
        }
    }
}