【GameFramework框架】FSM使用

一、使用流程图

二、使用方法

1、创建状态

csharp 复制代码

//状态一
public class IdleState : FsmState<StateMgr>
{
    protected override void OnInit(IFsm<StateMgr> fsm)
    {
        Debug.Log("IdleState初始化");
    }

    protected override void OnEnter(IFsm<StateMgr> fsm)
    {
        Debug.Log("进入Idle状态");
    }

    protected override void OnUpdate(IFsm<StateMgr> fsm, float elapseSeconds, float realElapseSeconds)
    {
        if (fsm.Owner.move)
        {
            ChangeState<MoveState>(fsm);
        }
    }

    protected override void OnLeave(IFsm<StateMgr> fsm, bool isShutdown)
    {
        Debug.Log("离开Idle状态");
    }

    protected override void OnDestroy(IFsm<StateMgr> fsm)
    {
        Debug.Log("销毁Idle状态");
    }
}

csharp 复制代码

//状态二
public class MoveState : FsmState<StateMgr>
{
	protected override void OnInit(IFsm<StateMgr> fsm)
	{
		Debug.Log("MoveState初始化");
	}
	protected override void OnEnter(IFsm<StateMgr> fsm)
	{
		Debug.Log("进入Move状态");
	}
	protected override void OnUpdate(IFsm<StateMgr> fsm, float elapseSeconds, float realElapseSeconds)
	{
		if (!fsm.Owner.move)
		{
			ChangeState<IdleState>(fsm);
		}
	}

	protected override void OnLeave(IFsm<StateMgr> fsm, bool isShutdown)
	{
		Debug.Log("离开Move状态");
	}
}

2、创建状态管理器，创建fsm，并根据条件进行状态切换

csharp 复制代码

public class StateMgr : MonoBehaviour
{
    public bool move=false;
    private IFsm<StateMgr> m_fsm;
    // Start is called before the first frame update
    void Start()
    {
        m_fsm = GF.Fsm.CreateFsm("PlayerFSM", this, new CheckState(),new IdleState(), new MoveState());
        m_fsm.Start<IdleState>();
    }

    // Update is called once per frame
    void Update()
    {
        if (Input.GetKeyDown(KeyCode.Space))
        {
           move=!move;
        }
    }
}

三、注意点

1、创建状态机时，不能加入多个相同的状态，否则会报错

例如下面这个情况，加入了两个相同的new CheckState()，就会报错

m_fsm = GF.Fsm.CreateFsm("PlayerFSM", this, new CheckState(),new IdleState(), new CheckState());