Dialogue

using UnityEngine;
using System.Collections;

public class Dialogue : MonoBehaviour
{
    public DialogueNode[] node;
    public int _currentNode;
    public bool ShowDialogue = true;

    void OnGUI()
    {
        if (ShowDialogue == true) {
            GUI.Box (new Rect (Screen.width / 2 - 300, Screen.height - 300, 600, 250), "");
            GUI.Label (new Rect (Screen.width / 2 - 250, Screen.height - 280, 500, 90), node [_currentNode].NpcText);
            for (int i = 0; i < node [_currentNode].PlayerAnswer.Length; i++) {
                if (GUI.Button (new Rect (Screen.width / 2 - 250, Screen.height - 200 + 25 * i, 500, 25), node [_currentNode].PlayerAnswer [i].Text)) {
                    if (node [_currentNode].PlayerAnswer [i].SpeakEnd) {
                        ShowDialogue = false;
                    }
                    _currentNode = node [_currentNode].PlayerAnswer [i].ToNode;
                }
            }
        }
    }
}

[System.Serializable]
public class DialogueNode
{
    public string NpcText;
    public Answer[] PlayerAnswer;
}


[System.Serializable]
public class Answer
{
    public string Text;
    public int ToNode;
    public bool SpeakEnd;
}