using System;
using Cysharp.Threading.Tasks;
using UnityEngine;

namespace Stary.Evo
{
    public interface FSMIState {
        IFsmSystem FsmSystem { get; }
        string Name { get; }
  
        //进入该状态时调用
        void OnEnter();
        
        UniTask OnEnterAsync<T>(T param);
        
        UniTask OnEnterAsync<T1,T2>(T1 param1, T2 param2);
        //每帧调用
        void OnUpdate();
        //退出该状态时调用
        void OnExit();
        
        UniTask OnExitAsync();
    }
    
    public abstract class AbstractFSMIState : FSMIState
    {
        public IFsmSystem FsmSystem { get; }
        public  string Name { get; }

        public AbstractFSMIState(IFsmSystem system)
        {
            FsmSystem = system;
            Name = GetType().Name;
        }

        public abstract UniTask OnEnterAsync<T>(T param);

        public abstract  UniTask OnEnterAsync<T1,T2>(T1 param1, T2 param2);
        public abstract void OnEnter();
        public virtual void OnUpdate()
        {
            // Timer += Time.deltaTime;
        }

        public abstract void OnExit();
        
        public abstract UniTask OnExitAsync();
    }
}