Trigger/Runtime/Collider/BoxColliderTriggerArea.cs

using UnityEngine;

namespace Syntriax.Modules.Trigger
{
    public class BoxColliderTriggerArea : ColliderTriggerAreaBase<Collider>
    {
        protected override int TriggerCount
            => Physics.OverlapBoxNonAlloc(transform.position, transform.localScale * .5f, nonAllocResults, transform.rotation, ColliderMask);

#if UNITY_EDITOR
        private void OnDrawGizmosSelected()
        {
            if (UnityEditor.EditorApplication.isPlaying)
                Gizmos.color = previousTriggerCount > 0 ? Color.green : Color.red;
            else
                Gizmos.color = TriggerCount > 0 ? Color.green : Color.red;

            Gizmos.matrix = transform.localToWorldMatrix;
            Gizmos.DrawWireCube(Vector3.zero, Vector3.one);
        }
#endif
    }
}