Unity角色行为状态机框架设计

本文提供了一个简单的角色行为状态机的实现，把角色状态类当成角色类的一个属性来实现，把角色的行为拆分成多个状态子类来实现，降低代码耦合度。

源码下载地址

行为状态基类：只提供几个最基本的方法。

using UnityEngine;using System.Collections;using System.Collections.Generic;using System;public class BaseMode{    public GAME_MODE_TYPE mModeType;    protected PlayerController mPlayer;    //状态初始化    public virtual void Init(PlayerController player)    {        mPlayer = player;    }    //状态开始    public virtual void Begin (object[] mParams){        Debug.Log(mModeType.ToString() + "|Begin");}    //状态更新    public virtual void Update()    {        Debug.Log(mModeType.ToString() + "|Update");    }    //状态结束    public virtual void End (){        Debug.Log(mModeType.ToString() + "|End");    }    //输入控制    public virtual void InputHandle()    {    }}

状态机子类：

using UnityEngine;using System.Collections;using System.Collections.Generic;using System;public class RunningMode : BaseMode{    public RunningMode()    {        mModeType = GAME_MODE_TYPE.Running;    }    public override void Begin(object[] mParams)    {        base.Begin(mParams);    }    public override void Update()    {        base.Update();    }    public override void End()    {        base.End();    }    public override void InputHandle()    {    }}

using UnityEngine;using System.Collections;using System.Collections.Generic;using System;public class DeathMode : BaseMode{    public DeathMode()    {        mModeType = GAME_MODE_TYPE.Death;    }    public override void Begin(object[] mParams)    {        base.Begin(mParams);    }    public override void Update()    {        base.Update();    }    public override void End()    {        base.End();    }    public override void InputHandle()    {    }}

状态机配置表：

using UnityEngine;using System.Collections;using System.Collections.Generic;public static class GameModeConfig{    public static Dictionary CreatGameModeDict(PlayerController mPlayer)    {        var mDict = new Dictionary()        {            { GAME_MODE_TYPE.Running,new RunningMode()},            { GAME_MODE_TYPE.Death,new DeathMode()},        };        foreach (var item in mDict)        {            item.Value.Init(mPlayer);        }        return mDict;    }}public enum GAME_MODE_TYPE{    Running,    Death,}

角色控制器

using UnityEngine;using System.Collections;using System.Collections.Generic;using System;public class PlayerController : MonoBehaviour{    private BaseMode mCurGameMode;    private Dictionary mGameModeDict = new Dictionary();    void Start()    {        //角色初始化应该在角色管理器初始化，此处仅作测试        Init();    }    //角色控制器初始化    void Init()    {        InitMode();        ChangeMode(GAME_MODE_TYPE.Running);    }    void Update()    {        //当前状态更新        if (mCurGameMode != null)        {            mCurGameMode.Update();        }    }    //初始化状态    public void InitMode()    {        mGameModeDict.Clear();        mGameModeDict = GameModeConfig.CreatGameModeDict(this);    }    //切换状态    public void ChangeMode(GAME_MODE_TYPE mType, object[] mParams = null)    {        //执行上个状态的结束        if (mCurGameMode != null)        {            mCurGameMode.End();        }        mCurGameMode = mGameModeDict[mType];        //执行当前状态的开始        mCurGameMode.Begin(mParams);    }    //是否是该状态    public bool IsGameMode(GAME_MODE_TYPE mType)    {        if (mCurGameMode != null && mCurGameMode.mModeType == mType)        {            return true;        }        return false;    }    #region 测试代码    void OnGUI()    {        if (GUILayout.Button("ChangeRunning"))        {            ChangeMode(GAME_MODE_TYPE.Running);        }        if (GUILayout.Button("ChangeDeath"))        {            ChangeMode(GAME_MODE_TYPE.Death);        }    }    #endregion}