beyond/Assets/Scripts/Optimization/BoxVolume.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

namespace Beyond
{
    [RequireComponent(typeof(BoxCollider))]
    public class BoxVolume : StreamingAsset
    {
        protected override void Draw()
        {
            if (collider == null)
            {
                collider = GetComponent<Collider>();
            }

            BoxCollider boxCollider = collider.GetComponent<BoxCollider>();
            if (boxCollider)
            {
                Vector3 size = new Vector3(boxCollider.size.x * transform.localScale.x, boxCollider.size.y * transform.localScale.y, boxCollider.size.z * transform.localScale.z);
                GizmosExtensions.DrawCube(transform.position + boxCollider.center, size, transform.rotation);
            }
        }

        protected override void DrawWire()
        {
            if (collider == null)
            {
                collider = GetComponent<Collider>();
            }

            BoxCollider boxCollider = collider.GetComponent<BoxCollider>();
            if (boxCollider)
            {
                Vector3 size = new Vector3(boxCollider.size.x * transform.localScale.x, boxCollider.size.y * transform.localScale.y, boxCollider.size.z * transform.localScale.z);
                GizmosExtensions.DrawWireCube(transform.position + boxCollider.center, size, transform.rotation);
            }
        }

        private void CancelDeactivationCoroutine()
        {
            if (deactivation != null)
            {
                Debug.Log("StopCoroutine deactivation");
                StopCoroutine(deactivation);
                deactivation = null;
            }
        }

        protected override void OnTriggerEnter(Collider other)
        {
            if (collisionLayer == 1 << other.gameObject.layer)
            {
                if (tagMask.IsInTagMask(other.tag))
                {
                    CancelDeactivationCoroutine();
                    SetActive(true);
                }
            }
        }

        protected override void OnTriggerExit(Collider other)
        {
            if (collisionLayer == 1 << other.gameObject.layer)
            {
                if (tagMask.IsInTagMask(other.tag))
                {
                    SetActive(false);
                }
            }
        }
    }
}