Editor script serialization problem

Unity Engine
1

EDIT: i’ve since realised this issue is about serialization so updated the thread titile & editor script below

I’m making a simple grid-aligned waypoint system where each waypoint stores which others it’s linked to, & in which direction.

Waypoint script

Waypoint editor script

The way it works is you pick a waypoint, click it’s toggle button in the inspector, then you can click other waypoints in the scene view to automatically link them (which involves storing its transform in a variable based on direction).

It works fine but if you save & reload the scene all the variables that were set are empty. Is there something I should be doing with OnSceneGUI() to keep them?

2

Update to the above editor script. I’ve used the serializedobject functions as shown in the docs & it’s still not working (pressing play or reloading the scene loses the changes made). Also tried using EditorSceneManager.MarkSceneDirty & same thing. Any ideas?

using UnityEngine;
using System.Collections;
using UnityEditor;
using UnityEditor.SceneManagement;

[CustomEditor(typeof(Waypoint))]
[CanEditMultipleObjects]
public class WaypointEditor : Editor
{
    SerializedProperty wpForward;
    SerializedProperty wpBack;
    SerializedProperty wpRight;
    SerializedProperty wpLeft;
    SerializedProperty wpUp;
    SerializedProperty wpDown;
    SerializedProperty linkedTP;

    private bool toggleButton = false;

    void OnEnable()
    {
        wpForward = serializedObject.FindProperty ("wpForward");
        wpBack = serializedObject.FindProperty ("wpBack");
        wpRight = serializedObject.FindProperty ("wpRight");
        wpLeft = serializedObject.FindProperty ("wpLeft");
        wpUp = serializedObject.FindProperty ("wpUp");
        wpDown = serializedObject.FindProperty ("wpDown");
        linkedTP = serializedObject.FindProperty ("linkedTP");
    }


    public override void OnInspectorGUI()
    {
        serializedObject.Update();
        EditorGUILayout.PropertyField(wpForward);
        EditorGUILayout.PropertyField(wpBack);
        EditorGUILayout.PropertyField(wpRight);
        EditorGUILayout.PropertyField(wpLeft);
        EditorGUILayout.PropertyField(wpUp);
        EditorGUILayout.PropertyField(wpDown);
        EditorGUILayout.PropertyField(linkedTP);

        if (GUILayout.Toggle(toggleButton, "Pick WPs", "Button") != toggleButton)
        {   
            toggleButton = !toggleButton;
        }

        serializedObject.ApplyModifiedProperties();
    }


    public void OnSceneGUI()
    {
        if (toggleButton)
        {
            Event e = Event.current;
            var t = (target as Waypoint);

            if (e.type == EventType.MouseDown && e.button == 0)
            {
                RaycastHit hit;
                Ray ray = HandleUtility.GUIPointToWorldRay (e.mousePosition);

                if (Physics.Raycast (ray, out hit, 10000))
                {
                    if (hit.transform.tag == "Waypoint" || hit.transform.tag == "Teleport")
                    {
                        Vector3 dirToHit = Vector3.Normalize(hit.transform.position - t.transform.position);

                        if (dirToHit == Vector3.forward)
                            t.wpForward = hit.transform;
                        else if (dirToHit == Vector3.back)
                            t.wpBack = hit.transform;
                        else if (dirToHit == Vector3.right)
                            t.wpRight = hit.transform;
                        else if (dirToHit == Vector3.left)
                            t.wpLeft = hit.transform;
                        else if (dirToHit == Vector3.up)
                            t.wpUp = hit.transform;
                        else if (dirToHit == Vector3.down)
                            t.wpDown = hit.transform;
                    }
                }
            }
            HandleUtility.AddDefaultControl (GUIUtility.GetControlID (FocusType.Passive));
            e.Use ();
        }
    }
}
3

ok found a solution - if i do ‘break prefab instance’ on the waypoints then the editor changes are kept.