Simple Dialogues and Conversations in Unity. 👥 💬

Conversation.cs

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

[Serializable]
public class Conversation
{

	// The ID of the current Conversation.
	public string ID = string.Empty;
	// The Name of the person talking.
	public string Name = string.Empty;
	// The actual text the person says!
	public string ConversationText = string.Empty;
	// Do we want to respond back?
	public List<Response> Responses = new List<Response>();
	// Fallback ID for next Conversation when there is no Responses.
	public string DefaultNextID = string.Empty;

}

ConversationManager.cs

// 👥 💬
// Simple example for conversations/dialogue.
// Sean Loper
// I hope you can learn from this and make something special of your own!
// Just attach the conversation manager to any gameobject in your scene and start adding conversations and responses!

using UnityEngine;
using System.Linq;
using System.Collections;
using System.Collections.Generic;

public class ConversationManager : MonoBehaviour
{

	// This holds all our conversations and responses.
	[SerializeField]
	private List<Conversation> Conversations = new List<Conversation>();
	// This variable is just for storing the current chosen or started conversation.
	private Conversation Current;

	// When the scene loads.
	private void Awake () 
	{
		// Did we add conversations like we where suppose to?
		if (Conversations.Count > 0) {
			// Then pick the very first in the Conversation List.
			Current = Conversations[0];
		} else {
			// or.. complain about it.
			Debug.Log ("Please add some Conversations.");
		}
	}

	// This function is a must have, it sorts through the list given a matching string or in this case ConversationID.
	private Conversation GetConversationByID(string conversationID)
	{
		return Conversations.FirstOrDefault(conversation => conversation.ID == conversationID);
	}

	// We use old unity UI, only for demonstration purposes.
	private void OnGUI()
	{
		// Check to see if our current conversation isn't empty for good measure.
		if (Current != null) {
			// Display the conversation name holder.
			GUILayout.Label(Current.Name);
			// Display the conversation text
			GUILayout.Label(Current.ConversationText);
			// If you added responses for this conversation
			if(Current.Responses.Count > 0) {
				// go through each response stored.
				foreach(Response r in Current.Responses) {
					// now display the response text and then change the conversation on click.
					if(GUILayout.Button(r.ResponseText)){
						Current = GetConversationByID(r.ConversationID);
					}
				}
			} else {
				// Here we continue with the conversation if no responses.
				if(GUILayout.Button("Continue")){
					Current = GetConversationByID(Current.DefaultNextID);
				}
			}
		}
	}
}

Response.cs

using UnityEngine;
using System;
using System.Collections;

[Serializable]
public class Response
{
  
  // Text we want to respond back with.
	public string ResponseText;
	// Next conversation when you respond.
	public string ConversationID;
	
}