PlayerFSMManager.cs

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

public enum PlayerState
{
    IDLE = 0,
    RUN,
    CHASE,
    ATTACK,
    DEAD
}

public class PlayerFSMManager : MonoBehaviour
{
    public PlayerState currentState;
    public PlayerState startState;

    Dictionary<PlayerState, PlayerFSMState> states = new Dictionary<PlayerState, PlayerFSMState>();

    private void Awake()
    {
        states.Add(PlayerState.IDLE, GetComponent<PlayerIDLE>());
        states.Add(PlayerState.RUN, GetComponent<PlayerRUN>());
    }

    private void Start()
    {
        SetState(startState);
    }

    public void SetState(PlayerState newState)
    {
        foreach (PlayerFSMState fsm in states.Values)
        {
            fsm.enabled = false;
        }

        states[newState].enabled = true;
        currentState = newState;
    }

    private void Update()
    {
        
    }

}