Unity Editor: Many elements with Dropdown lists

Unity Engine
1

Hello!

I’m trying to make a Visual Novel game and to make the things easier I made an script that “Helps”, somehow, creating the dialogue between the characters.

What I did is an Editor Script ( pretty much based on this one ) where you add a text and select the character, pose, voice and write the text that will be shown on game, but I got some problems with the Dropdown list I made for the character selection.

What I would love to do is:
To have a visual way to place texts for the VN, as the picture above shows, but the dropdown code is giving me problems, since it changes the whole number of dropdown menus I place.

I used an EnumPopup to do that, and the code is like this:

    using UnityEngine;
    using System;
    using System.Collections.Generic; // Import the System.Collections.Generic class to give us access to List<>
  
    public class CustomList : MonoBehaviour {
  
  
        //This is our custom class with our variables
        [System.Serializable]
        public class DialogueList{
            public int characterId;
            public string text;
            public int pose;
            public int voice;
        }
  
        //This is our list we want to use to represent our class as an array.
        public List<DialogueList> MyList = new List<DialogueList>(1);
  
  
        void AddNew(){
            //Add a new index position to the end of our list
            MyList.Add(new DialogueList());
        }
  
        void Remove(int index){
            //Remove an index position from our list at a point in our list array
            MyList.RemoveAt(index);
        }
    }

using UnityEngine;
    using System.Collections;
    using System.Collections.Generic;
    using UnityEditor;
  
    [CustomEditor(typeof(CustomList))]
  
    public class CustomListEditor : Editor {
        enum Characters {None, Helena, Rin}
        Characters characterSel;
  
        CustomList t;
        SerializedObject GetTarget;
        SerializedProperty ThisList;
  
        void OnEnable(){
            t = (CustomList)target;
            GetTarget = new SerializedObject(t);
            ThisList = GetTarget.FindProperty("MyList"); // Find the List in our script and create a refrence of it
        }
  
        public override void OnInspectorGUI(){
            base.OnInspectorGUI();
            //Update our list
            GetTarget.Update();
  
            //Choose how to display the list<> Example purposes only
            EditorGUILayout.Space ();
            EditorGUILayout.Space ();
            EditorGUILayout.Space ();
  
            //Or add a new item to the List<> with a button
            EditorGUILayout.LabelField("Add a text with its properties!");
  
            if(GUILayout.Button("Add Text")){
                t.MyList.Add(new CustomList.DialogueList());
            }
  
            EditorGUILayout.Space ();
            EditorGUILayout.Space ();
  
            //Display our list to the inspector window
            for(int i = 0; i < ThisList.arraySize; i++){
                SerializedProperty MyListRef = ThisList.GetArrayElementAtIndex(i);
                SerializedProperty MyInt = MyListRef.FindPropertyRelative("characterId");
                SerializedProperty MyFloat = MyListRef.FindPropertyRelative("text");
                SerializedProperty MyVect3 = MyListRef.FindPropertyRelative("pose");
                SerializedProperty MyGO = MyListRef.FindPropertyRelative("voice");
  
                EditorGUILayout.LabelField("                        -- ♦ --");
                EditorGUILayout.LabelField("           -- ♦ -- Dialogue Starts -- ♦ --");
                characterSel = (Characters)EditorGUILayout.EnumPopup("Character",characterSel);
                MyInt.intValue = getCharacterId (characterSel);
                EditorGUILayout.PropertyField(MyFloat);
                EditorGUILayout.PropertyField(MyGO);
                EditorGUILayout.PropertyField(MyVect3);
  
                EditorGUILayout.Space ();
  
                //Remove this index from the List
                if(GUILayout.Button("Remove Text (" + i.ToString() + ")")){
                    ThisList.DeleteArrayElementAtIndex(i);
                }
                EditorGUILayout.LabelField("           -- ♦ -- Dialogue Ends -- ♦ --");
            }
  
            EditorGUILayout.Space ();
            EditorGUILayout.Space ();
  
            if(GUILayout.Button("Add Text")){
                t.MyList.Add(new CustomList.DialogueList());
            }
  
            EditorGUILayout.Space ();
  
            //Apply the changes to our list
            GetTarget.ApplyModifiedProperties();
        }
  
        private int getCharacterId(Characters characterSel){
  
            int characterId = 0;
  
            switch (characterSel) {
            case Characters.Helena:
                characterId = 0;
                break;
            case Characters.Rin:
                characterId = 3;
                break;
  
            default:
                characterId = 999;
                break;
            }
  
            return characterId;
        }
    }

How can I make this to work?

Thanks in advance.

2

Hey Anshie,

Would like to help, but it’s not clear (to me) exactly what the problem is. Can you describe in more detail what you are having trouble with?

3

Thanks for your quick response!

The problem I have is that when I change the value of the dropdown list, let’s say, I want to the character Helena talk in the first text, but in the second one I would like to have Rin answering. Something like:

Helena: Hello!
Rin: Hey!

When I select the character on the second dropdown list, it changes the value of all others element’s dropdown menus.

I need each element to have its own character selected, but everytime I change one, it changes all of them.

Thank you in advance!

4

Ah I see! There are a lot of ways you can fix this, but perhaps the simplest is just to store the characterID as an enum itself.

using UnityEngine;
using System;
using System.Collections.Generic; // Import the System.Collections.Generic class to give us access to List<>

public class CustomList : MonoBehaviour {

    public enum Character {None, Helena, Rin}

    //This is our custom class with our variables
    [System.Serializable]
    public class DialogueList{
        public Character character;
        public string text;
        public int pose;
        public int voice;
    }

    //This is our list we want to use to represent our class as an array.
    public List<DialogueList> MyList = new List<DialogueList>(1);


    void AddNew(){
        //Add a new index position to the end of our list
        MyList.Add(new DialogueList());
    }

    void Remove(int index){
        //Remove an index position from our list at a point in our list array
        MyList.RemoveAt(index);
    }
}

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

[CustomEditor(typeof(CustomList))]

public class CustomListEditor : Editor {

    CustomList t;
    SerializedObject GetTarget;
    SerializedProperty ThisList;

    void OnEnable(){
        t = (CustomList)target;
        GetTarget = new SerializedObject(t);
        ThisList = GetTarget.FindProperty("MyList"); // Find the List in our script and create a refrence of it
    }

    public override void OnInspectorGUI(){
        base.OnInspectorGUI();
        //Update our list
        GetTarget.Update();

        //Choose how to display the list<> Example purposes only
        EditorGUILayout.Space ();
        EditorGUILayout.Space ();
        EditorGUILayout.Space ();

        //Or add a new item to the List<> with a button
        EditorGUILayout.LabelField("Add a text with its properties!");

        if(GUILayout.Button("Add Text")){
            t.MyList.Add(new CustomList.DialogueList());
        }

        EditorGUILayout.Space ();
        EditorGUILayout.Space ();

        //Display our list to the inspector window
        for(int i = 0; i < ThisList.arraySize; i++){
            SerializedProperty MyListRef = ThisList.GetArrayElementAtIndex(i);
            SerializedProperty MyCharacter = MyListRef.FindPropertyRelative("character");
            SerializedProperty MyFloat = MyListRef.FindPropertyRelative("text");
            SerializedProperty MyVect3 = MyListRef.FindPropertyRelative("pose");
            SerializedProperty MyGO = MyListRef.FindPropertyRelative("voice");

            EditorGUILayout.LabelField("                        -- ♦ --");
            EditorGUILayout.LabelField("           -- ♦ -- Dialogue Starts -- ♦ --");
            EditorGUILayout.PropertyField(MyCharacter);
            EditorGUILayout.PropertyField(MyFloat);
            EditorGUILayout.PropertyField(MyGO);
            EditorGUILayout.PropertyField(MyVect3);

            EditorGUILayout.Space ();

            //Remove this index from the List
            if(GUILayout.Button("Remove Text (" + i.ToString() + ")")){
                ThisList.DeleteArrayElementAtIndex(i);
            }
            EditorGUILayout.LabelField("           -- ♦ -- Dialogue Ends -- ♦ --");
        }

        EditorGUILayout.Space ();
        EditorGUILayout.Space ();

        if(GUILayout.Button("Add Text")){
            t.MyList.Add(new CustomList.DialogueList());
        }

        EditorGUILayout.Space ();

        //Apply the changes to our list
        GetTarget.ApplyModifiedProperties();
    }
}
1 Like
5

Oh my God, it was so simple…I’ve been stucked with this for like two days.

Thank you so much!! Now it works perfectly!

1 Like