A modular wrapper for Unity Triggers that makes them trigger events for enter and exit.

TriggerEvents.cs

using Adnc.Utility;
using UnityEngine;
using UnityEngine.Events;

namespace CleverCrow.DungeonsAndHumans.Explorations {
    public class TriggerEvents : MonoBehaviour {
        private TriggerEventsInternal _internal;

        [SerializeField]
        private string _tag;

        [SerializeField]
        private UnityEvent _enterEvent;

        [SerializeField]
        private UnityEvent _exitEvent;

        private void Start () {
            _internal = new TriggerEventsInternal(_tag, _enterEvent, _exitEvent);
        }

        private void OnTriggerEnter (Collider other) {
            _internal.EnterUpdate(other.tag);
        }

        private void OnTriggerExit (Collider other) {
            _internal.ExitUpdate(other.tag);
        }
    }

    public class TriggerEventsInternal {
        private readonly string _targetTag;
        private readonly UnityEvent _enterEvent;
        private readonly UnityEvent _exitEvent;

        public TriggerEventsInternal (string targetTag, UnityEvent enterEvent, UnityEvent exitEvent) {
            _targetTag = targetTag;
            _enterEvent = enterEvent;
            _exitEvent = exitEvent;
        }

        public void EnterUpdate (string tag) {
            if (tag != _targetTag) return;
            _enterEvent.Invoke();
        }

        public void ExitUpdate (string tag) {
            if (tag != _targetTag) return;
            _exitEvent.Invoke();
        }
    }
}