Usable.cs

using UnityEngine;
using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using Lidgren.Network;

[AddComponentMenu("Liberi/Usable")]
[RequireComponent(typeof(Collider))]
[Script(ScriptRole.Client)]
public class Usable : MonoBehaviour, IActionInfoProvider
{
    public string UseCaption;

    bool _isAvatarOver;
    string _useCaption;
    Inspectable _inspectable;
    
    public string GetActionCaption (ControlsAction action)
    {
        return _useCaption;
    }

    public bool IsActionEnabled (ControlsAction action)
    {
        if (_inspectable != null)
            return _inspectable.enabled;
    
        return true;
    }
    
    void Awake ()
    {
        _inspectable = GetComponent<Inspectable>();
    }

    void OnSpawn ()
    {
        _useCaption = Localizer.GetString(UseCaption);
    }

    void Update ()
    {
        if (_isAvatarOver && Controls.GetActionDown(ControlsAction.Primary))
        {
            Sync.SendEnabledMessage(this, "OnUse");
            Study.LogEvent(UsableLogEvent.Use, name);
        }
    }

    void OnTriggerEnter (Collider other)
    {
        if (other.tag == "Avatar" && Sync.IsLocal(other))
        {
            _isAvatarOver = true;
            Controls.RegisterActionInfoProvider(ControlsAction.Primary, this);
        }
    }

    void OnTriggerExit (Collider other)
    {
        if (_isAvatarOver && other.tag == "Avatar" && Sync.IsLocal(other))
        {
            _isAvatarOver = false;
            Controls.UnregisterActionInfoProvider(ControlsAction.Primary, this);
        }
    }

    void OnDestroy ()
    {
        if (_isAvatarOver)
        {
            _isAvatarOver = false;
            Controls.UnregisterActionInfoProvider(ControlsAction.Primary, this);
        }
    }
}