LayerMask in an editor script.

Unity Engine
,
1

Hi all!
I’m really struggling to get a LayerMask working in an editor script.

I have the variable
public LayerMask collisionLayer;
It looks like EditorGUILayout.MaskField is the way to go but I can’t figure out the ‘displayedOption’. Do you have to manually enter each layer in?

Could someone point me in the right direction?
Thanks,
Pete

2

Hey!

EditorGUILayout.MaskField seems to be used to create a custom list and the displayedOption seems to be the custom list/array of options that you provide.

Maybe LayerField is what you look for to create LayerMask selection?

I hope it helps!

3

Hey thanks @SunnyValleyStudio !
Maybe I’m doing something wrong but layerfield seems to only let me select one layer at a time.

4

I have this in my editor script -

baseScript.collisionLayer = EditorGUILayout.LayerField(baseScript.collisionLayer);

And this on my editor script -

public LayerMask collisionLayer;

In the editor it seems to work (although it only lets me select one layer)
7562143--935635--Screen Shot 2021-10-11 at 8.48.11 am.png
But if I switch to debug, the result is actually different.
7562143--935638--Screen Shot 2021-10-11 at 8.48.26 am.png

Any ideas what I might be stuffing up there?
Thanks!
Pete

5

You need to use MaskField not LayerField to select more than one layer.

6

Okay cool, but with EditorGUILayout.MaskField, it seems that you have to manually add all of the layers with a string array.
Is there a way to automate that? It seems a bit tedious, and potentially problematic.

7

This will do

string[] stringz = new string[32];
for (int i = 0; i < 32; i++) stringz[i] = ("A Layer "+i);
baseScript.collisionLayer = EditorGUILayout.MaskField(baseScript.collisionLayer, stringz);