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

public interface IState
{
    public FSMController Machine { get; set; }
    public void OnEnter();
    public void OnExit();
    public void Update();
    public void FixedUpdate();
    public void OnInit();
    public void OnDestory();

}

public abstract class AbstractState : IState
{
    public FSMController Machine { get; set; }
    public abstract void OnEnter();
    public abstract void OnExit();
    public abstract void Update();
    public abstract void FixedUpdate();
    public abstract void OnInit();
    public abstract void OnDestory();
}

/// <summary>
/// 状态中具体行为：
/// （OnInitAction：初始化）
/// （OnEnterAction：进入）
/// （UpdateAction：循环）
/// （FixedUpdateAction：后循环）
/// （OnExitAction：离开）
/// （OnDestoryAction：销毁）
/// </summary>
public struct StateDateAction
{
    public System.Action OnEnterAction;
    public System.Action OnExitAction;
    public System.Action UpdateAction;
    public System.Action FixedUpdateAction;
    public System.Action OnInitAction;
    public System.Action OnDestoryAction;
}

/// <summary>
/// 单个状态
/// </summary>
public class SingleState : AbstractState
{
    public StateDateAction stateDate;
    public bool IsRunning;

    public override void FixedUpdate()
    {
        stateDate.FixedUpdateAction?.Invoke();
    }

    public override void OnDestory()
    {
        stateDate.OnDestoryAction?.Invoke();
    }

    public override void OnEnter()
    {
        stateDate.OnEnterAction?.Invoke();
    }

    public override void OnExit()
    {
        stateDate.OnExitAction?.Invoke();
    }

    public override void OnInit()
    {
        stateDate.OnInitAction?.Invoke();
    }

    public override void Update()
    {
        stateDate.UpdateAction?.Invoke();
    }
}