LayerMaskExtensions

LayerMaskExtensions.cs

using System.Collections.Generic;
using UnityEngine;

namespace Giacomelli.Framework
{
    public static class LayerMaskExtensions
    {
        public static bool HasLayer(this LayerMask mask, int layer) => mask == (mask | (1 << layer));

        public static IEnumerable<string> ToNames(this LayerMask mask)
        {
            //  Unity generates 32 layers.
            // https://docs.unity3d.com/ScriptReference/GameObject-layer.html
            for (int i = 0; i < 32; i++)
            {
                if (mask.HasLayer(i))
                    yield return LayerMask.LayerToName(i);
            }    
        }

        public static string JoinNames(this LayerMask mask, string separator = ", ")
        {
            return string.Join(separator, mask.ToNames());
        }
    }
}