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using System;
using System.Reflection;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
// 角色状态机
[DisallowMultipleComponent]
public class UnitState : UnitComponent
{
public enum EUnitState
{
Idle ,
Move ,
Spawn ,
Die ,
Dead ,
Skill ,
//
HitAir ,
HitAirHit ,
Knockdown ,
//
HitGuard ,
//
Walk ,
//
Rise ,
//
Jump ,
// 转身
Turn ,
Landing , // 从空中降落
}
[SerializeField] private EUnitState m_State;
public EUnitState CurrentState { get { return m_State; } }
public override void Initialize()
{
base.Initialize();
InitState();
}
#region state param
public struct IdleParam {}
public struct MoveParam
{
public bool isRight;
public string key;
}
public struct SkillParam
{
}
public struct JumpParam
{ }
public struct TurnParam
{
EUnitState nextState;
}
public struct LandingParam { }
#endregion
void InitState()
{
}
public void ChangeState<T>(EUnitState nextState, T param = default, bool bForce = false)
{
if (!IsChange(nextState, bForce))
return;
LogHelper.Log("UnitState: " + m_State.ToString() + " -> " + nextState.ToString());
StopAllCoroutines();
EUnitState prevState = m_State;
string methodFunc = "On" + m_State.ToString() + "Exit";
MethodInfo exitMethod = GetType().GetMethod(methodFunc, BindingFlags.Instance | BindingFlags.NonPublic, null, new Type[] { typeof(EUnitState) }, null);
if(exitMethod != null)
{
exitMethod.Invoke(this, new object[] { nextState });
}
else
{
LogHelper.LogError("缺少 " + methodFunc);
}
m_State = nextState;
StartCoroutine(m_State.ToString(), param);
}
bool IsChange(EUnitState newState, bool bForce)
{
if (newState != m_State || bForce)
return true;
return false;
}
#region Idle
IEnumerator Idle(IdleParam param)
{
if(m_Owner.isInAir)
{
}
m_Owner.unitAnimation.AnimIdle();
yield return null;
}
void OnIdleExit(EUnitState nextState)
{
LogHelper.Log(nextState.ToString());
}
#endregion
#region Move
IEnumerator Move(MoveParam param)
{
if (m_Owner.isTowardRight && !param.isRight
|| !m_Owner.isTowardRight && param.isRight)
{
//m_Owner.unitAnimation.Play(UnitAnimation.EAnimState.Turn);
//yield return new WaitForActionReachEnd(m_Owner.unitAnimation);
//if (param.isRight)
// m_Owner.transform.rotation = Quaternion.Euler(0, 0, 0);
//else
// m_Owner.transform.rotation = Quaternion.Euler(0, 180, 0);
m_Owner.transform.rotation = Quaternion.Euler(0, param.isRight ? 0 : 180, 0);
}
//if (Input.GetKey(param.key))
m_Owner.unitAnimation.AnimMove();
while (Input.GetKey(param.key))
{
yield return null;
}
ChangeState(EUnitState.Idle, new IdleParam());
}
void OnMoveExit(EUnitState nextState)
{
//m_Owner.unitAnimation.animator.ResetTrigger("ToMove");
}
#endregion
#region Skill
IEnumerator Skill(SkillParam param)
{
m_Owner.unitAnimation.AnimAttack();
yield return new WaitForTransitionDone(m_Owner.unitAnimation);
yield return new WaitForActionReachEnd(m_Owner.unitAnimation);
ChangeState(EUnitState.Idle, new IdleParam());
}
void OnSkillExit(EUnitState next)
{
}
#endregion
#region Jump
IEnumerator Jump(JumpParam param)
{
yield return new WaitForActionReachEnd(m_Owner.unitAnimation);
ChangeState<IdleParam>(EUnitState.Idle);
}
void OnJumpExit(EUnitState next)
{
}
#endregion
#region Landing
IEnumerator Landing(LandingParam param)
{
yield return new WaitForLanding(m_Owner);
Vector3 pos = m_Owner.transform.position;
pos.y = 0;
m_Owner.transform.position = pos;
ChangeState<IdleParam>(EUnitState.Idle);
}
void OnLandingExit(EUnitState next)
{
}
#endregion
}
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