koobas.hobune.stream
Enum drop down menu in inspector for nested arrays
Hi everyone,
I'm having an issue with enum values being reflected as their numeric values in the inspector when used in a nested array with Unity. Here's a cut down example of the code I'm trying to use.
public enum EnumType { Enum1, Enum2 }
public class ContainerClass : MonoBehavior { [Serializable] public class Constants { [Serializable] public class SubConstants { /.../ public EnumType EnumVals[] = null; }
public SubConstants SubConsts = new SubConstants();
}
[SerializeField]List<Constants> _Attributes = new List<Constants>();
}
So what I'm seeing is that I can create and modify the list of Constants but when I go to edit the array of EnumType in SubConstants, it only shows numeric values and not a drop down box of values. I've also tried making the List an array with no change.
Seems like the Unity Inspector has a bug with reflected type discovery. Rearranging the nesting of the classes as follows makes it work:
using System; using System.Collections.Generic; using UnityEngine;
public enum EnumType { Enum1, Enum2 }
[Serializable] public class SubConstants { /.../ public EnumType[] EnumVals = null; }
public class ContainerClass : MonoBehaviour { [Serializable] public class Constants { public SubConstants SubConsts = new SubConstants(); }
[SerializeField]List<Constants> _Attributes = new List<Constants>();
}
I just discovered the same thing - your post confirmed my suspicions/fears, thankyou! Did you report the bug to the devs? It's not a huge issue, but it would be nice to fix up!
In case the above does not work for you. It is possible to work around it using PropertyDrawers
Editor code
[CustomPropertyDrawer(typeof(EnumAttr))]
public class EnumEditor : PropertyDrawer {
public override void OnGUI (Rect position, SerializedProperty prop, GUIContent label) {
System.Enum v = EditorGUI.EnumPopup (position, label, (System.Enum)System.Enum.ToObject ((this.attribute as EnumAttr).enumType, prop.intValue));
prop.intValue = System.Convert.ToInt32 (v);
}
}
Class code
public class EnumAttr : PropertyAttribute {
public System.Type enumType;
public EnumAttr (System.Type enumType) {
this.enumType = enumType;
}
}
Then for a field which is an enum
[EnumAttr(typeof(Side))]
public Side side = Side.Side1;
