UnityEngine.Physics2D.GetLayerCollisionMask C# (CSharp) Method

        public static extern int GetLayerCollisionMask(int layer);
        [ExcludeFromDocs]

        public int Cast(Vector2 direction, RaycastHit2D[] results, [DefaultValue("Mathf.Infinity")] float distance, [DefaultValue("true")] bool ignoreSiblingColliders)
        {
            ContactFilter2D contactFilter = default(ContactFilter2D);

            contactFilter.useTriggers = Physics2D.queriesHitTriggers;
            contactFilter.SetLayerMask(Physics2D.GetLayerCollisionMask(base.gameObject.layer));
            return(this.Internal_Cast(direction, contactFilter, distance, ignoreSiblingColliders, results));
        }