This script provides a way to have a Collider2D that is configured as a trigger, so that it can have a Conversation ScriptableObject triggered to be executed by the DialogManager. See version 2 below, it also includes logic to use key-value pair data to determine if a dialog should be replayed when revisiting a scene. The DialogManager version2 has logic that sets conversations as completed by default so they won't be replayed when returning to a scene.
DialogTrigger.cs (Important: see version 2 below)
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
/// <summary>
/// This class provides a logic for the player to trigger dialog using a 2D collider
/// This script will be added to a gameObject with a collider2D with isTrigger true
///
/// THis script requires that the dialogManager instance which will execute the dialog
/// must be populated in the inspector panel
/// as well as the ConversationList scriptableObject that will be displayed when triggered
///
/// This can be used on multiple objects within a scene, where each instance will have it's own
/// conversation to be exectued.
/// </summary>
public class DialogTrigger : MonoBehaviour
{
public ConversationList convList; //populate in the inspector
public DialogManager dialogManager; //Populate in the Inspector
private void OnTriggerEnter2D(Collider2D collision)
{
if (collision.CompareTag("Player"))
{
Debug.Log("Collided with DialogTrigger");
if (dialogManager != null) //populated in the inspector
{
dialogManager.TriggeredDialog(convList); //pass the convList as a parameter into the DialogManager
Debug.Log("Trigger dialog");
}
else
{
Debug.Log("Couldn't find dialogManager to trigger");
}
}
}
} //end class
DialogTrigger version2
In this version, a series of values associated with a given key, will determine conditions when the conversation will be replayed in a scene. This requires that the key-value pair: key: ConvList.name value: "completed" be removed from the choiceData dictionary so that the DialogManager will replay the script.
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
/// <summary>
/// This class provides a logic for the player to trigger dialog using a 2D collider
/// This script will be added to a gameObject with a collider2D with isTrigger true
///
/// THis script requires that the dialogManager instance which will execute the dialog
/// must be populated in the inspector panel
/// as well as the ConversationList scriptableObject that will be displayed when triggered
///
/// This can be used on multiple objects within a scene, where each instance will have it's own
/// conversation to be exectued.
/// </summary>
public class DialogTrigger : MonoBehaviour
{
public ConversationList convList; //populate in the inspector
public DialogManager dialogManager; //Populate in the Inspector
[SerializeField]
string key; //value required in order to be visible
[SerializeField]
string[] active_values; //set values that determine visibility within each scene
private void Start()
{
//what NPC state is the condition that requires this to be replayed
//example: ZombieState == "hungry"
string curValue = GameData.instanceRef.GetChoice(key);
bool activate = false;
//add logic to see if conversation should be replayed - replay, make conversation active if this state is true
for ( int i=0; i< active_values.Length; i++)
{
if( curValue == active_values[i])
{
activate = true;
Debug.Log("reactivated conversation " + convList.name );
}
}
if(activate) //activate by removing the key from the dictionary to remove value 'completed'
{
GameData.instanceRef.RemoveChoice(convList.name); //key to remove is ConvList.name
}
}
private void OnTriggerEnter2D(Collider2D collision)
{
if (collision.CompareTag("Player"))
{
Debug.Log("Collided with DialogTrigger");
if (dialogManager != null) //populated in the inspector
{
dialogManager.TriggeredDialog(convList); //pass the convList as a parameter into the DialogManager
Debug.Log("Trigger dialog");
Destroy(this.gameObject); //destroy trigger gameObject so that it doesn't get retriggered in the scene
}
else
{
Debug.Log("Couldn't find dialogManager to trigger");
}
}
}
} //end class
