unity状态模式

  开始的时候我写属性类时只写了一个类，当属性增多时我开始意识到这个类已经失败了，每一次修改都要滚动来滚动去的，更繁琐的是我不得不准备个记事本写上属性变量好查询。

  记得我曾看过一篇有限状态机的文章，把if 或 switch 都改成枚举，用枚举去查询状态，那么我觉得一定也有一种方式提高可阅读性，我找到了状态模式，具体自行搜索

首先写个基础类，就是用来修改值得

public class BaseStat  {    private string _name;    private int _baseValue;    private int _buffValue;    public BaseStat() {        _baseValue = 0;    }    public string Name {        get { return _name; }        set { _name = value; }    }    public int BaesValue {        get { return _baseValue + _buffValue; }    }    public int BuffValue    {        get { return _buffValue; }    }        public void AdjustBuffValue(int buff)    {        _buffValue = buff;    }    }

再写个属性类，顺便枚举几个属性

public class Attribute : BaseStat{    public Attribute(string name)    {        Name = name;    }}public enum AttributeName{    Might,    Constituion,    Nimbleness,    Speed,    Concentration,    Willpower,    Charisma}

由于一个属性改变后，连带着有N个属性会被改变，所以加了个链表用来存储将会被改变的属性，由于C#不new地址并不会改变，所以可以放心修改

当修改Buff值的时候调用子类更新附属的值

using System.Collections.Generic;public class ModifiedStat : BaseStat{    public List<ModifyingAttribute> _mod { get; set; }    public ModifiedStat()    {        _mod = new List<ModifyingAttribute>();    }    public void AddModifying(ModifyingAttribute mod)    {        _mod.Add(mod);    }        public void ModifyBuffValue(int Value)    {        AdjustBuffValue(Value);        Update();    }    protected virtual void Update() {  }}public struct ModifyingAttribute{    public Attribute _attr;    public ModifyingAttribute(Attribute attr)    {        _attr = attr;    }}

当然这只是示范一下，公式不一定只写在一个函数里

using System;public class Vital : ModifiedStat{    public Vital(string name)    {        Name = name;    }    protected override void Update()    {        foreach(ModifyingAttribute mod in _mod)        {            CalculationHealth(mod);        }    }        void CalculationHealth(ModifyingAttribute mod)    {        //属性计算公式        if(mod._attr.Name == Enum.GetName(typeof(AttributeName),AttributeName.Might))            mod._attr.AdjustBuffValue(BuffValue*3);            }}public enum VitalName{    Health,    Energy,    Mana}

public class Skill : ModifiedStat{    public Skill(string name)    {        Name = name;    }    protected override void Update()    {        foreach (ModifyingAttribute mod in _mod)        {           mod._attr.AdjustBuffValue(100);        }    }}public enum SkillName{    Melee_Offence,    Melee_Defence,    Ranged_Offence,    Ranged_Defence,    Magic_Offence,    Magic_Defence,}

using UnityEngine;using System.Collections;using System;public class test : MonoBehaviour {    Attribute[] _attribute;    Vital []_vital;    Skill []_skill;// Use this for initializationvoid Start () {        _attribute = new Attribute[Enum.GetValues(typeof(AttributeName)).Length];        _vital = new Vital[Enum.GetValues(typeof(VitalName)).Length];        _skill = new Skill[Enum.GetValues(typeof(SkillName)).Length];        SetupAttribute();        SetupSkill();        SetupVital();                       GetVital((int)VitalName.Health).ModifyBuffValue(10);        GetSkill((int)SkillName.Magic_Defence).ModifyBuffValue(10);        Output();    }    void Output()    {        string tmp = "";        foreach(Attribute at in _attribute)        {            tmp += (at.Name + ":" + at.BaesValue+"\n");        }                foreach (Vital at in _vital)        {            tmp += (at.Name + ":" + at.BaesValue + "\n");        }        foreach (Skill at in _skill)        {            tmp += (at.Name + ":" + at.BaesValue + "\n");        }        Debug.Log(tmp);    }    void SetupAttribute()    {        for(int i = 0; i < _attribute.Length; i++)        {            _attribute[i] = new Attribute(Enum.GetName(typeof(AttributeName),i));        }    }    void SetupVital()    {        for (int i = 0; i < _vital.Length; i++)        {            _vital[i] = new Vital(Enum.GetName(typeof(VitalName), i));        }        VitalModified();    }    void SetupSkill()    {        for (int i = 0; i < _skill.Length; i++)        {            _skill[i] = new Skill(Enum.GetName(typeof(SkillName), i));        }        SkillModified();    }    Attribute GetAttribut(int index)    {        return _attribute[index];    }    Vital GetVital(int index)    {        return _vital[index];    }    Skill GetSkill(int index)    {        return _skill[index];    }    void VitalModified()    {        //如果_vital[VitalName.Health] 改变 则 _attribute[AttributeName.Might] 改变        GetVital((int)VitalName.Health).AddModifying(new ModifyingAttribute(GetAttribut((int)AttributeName.Might)));        GetVital((int)VitalName.Energy).AddModifying(new ModifyingAttribute(GetAttribut((int)AttributeName.Concentration)));        GetVital((int)VitalName.Mana).AddModifying(new ModifyingAttribute(GetAttribut((int)AttributeName.Willpower)));    }    void SkillModified()    {        GetSkill((int)SkillName.Magic_Defence).AddModifying(new ModifyingAttribute(GetAttribut((int)AttributeName.Willpower)));    }    }