State

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

public class State : MonoBehaviour {
    public StateMachine Machine;

    public static implicit operator bool (State state) {
        return state != null;
    }

    public void Initialize (StateMachine machine) {
        Machine = machine;
        OnStateInitialize (machine);
    }

    protected virtual void OnStateInitialize (StateMachine machine = null) {

    }

    public void StateEnter () {
        enabled = true;
        OnStateEnter ();
    }

    protected virtual void OnStateEnter () {

    }

    public void StateExit () {
        OnStateExit ();
        enabled = false;
    }

    protected virtual void OnStateExit () {

    }

    public void OnEnable () {
        if (this != Machine.GetCurrentState) {
            enabled = false;
        }
    }

    public void OnDisable () {
        if (this == Machine.GetCurrentState) {
            enabled = true;
        }
    }

}