Unity 设计模式-简单工厂模式和其他好用的通用代码块

1.

2.加法操作类

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

//加法操作类
public class AddOperation : Operation
{
    //重写父类方法
    public override double GetResult()
    {
        double dReult = 0;
        dReult = m_dNumberA + m_dNumberB;
        return dReult;
    }
}

3.减法操作类

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

//减法操作类
public class SubOperation : Operation
{
    //重写父类方法
    public override double GetResult()
    {
        double dReult = 0;
        dReult = m_dNumberA - m_dNumberB;
        return dReult;
    }
}

4.乘法操作类

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
/// <summary>
/// 乘法操作类
/// </summary>
public class RideOperation : Operation
{
    public override double GetResult()
    {
        double dResult = 0;
        dResult = m_dNumberA * m_dNumberB;
        return dResult;
    }
}

5.公共类

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class Operation
{
    public double m_dNumberA;
    public double m_dNumberB;
    //虚方法提供子类重写
    public virtual double GetResult()
    {
        double dResult = 0;
        return dResult;
    }

}

public class OperationFactory
{
   public Operation CreateOperate(string str)
    {
        Operation operation = null;
        switch (str)
        {
            case "+":
                operation = new AddOperation ();
                break;
            case "-":
                operation = new SubOperation();
                break;
            case "*":
                operation = new RideOperation();
                break;
            default:
                break;
        }
        return operation;
    }
}

6.使用

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class OperateTest : MonoBehaviour
{
    // Start is called before the first frame update
    void Start()
    {
        OperationFactory factory = new OperationFactory();
        Operation operation = factory.CreateOperate("+");
        operation.m_dNumberA = 5;
        operation.m_dNumberB = 2;
        double addResult = operation.GetResult();
        Debug.Log("加:" + addResult);
        Operation Suboperation = factory.CreateOperate("-");
        Suboperation.m_dNumberA = 10;
        Suboperation.m_dNumberB = 2;
        double subResult = Suboperation.GetResult();
        Debug.Log("减:" + subResult);
        Operation Rideoperation = factory.CreateOperate("*");
        Rideoperation.m_dNumberA = 2;
        Rideoperation.m_dNumberB = 2;
        double rideResult = Rideoperation.GetResult();
        Debug.Log("乘:" + rideResult);

        //1+(1+2)+(1+2+3)+...+(1+2+3+...+10)之和
        int i = 1, j = 1, s = 0, s1 =0;
        while (j<=10)
        {
            while (i<=j)
            {
                s += i;
                i++;
            }
            s1 += s;
            j++;
        }
        Debug.Log(s1);

    }

}

7.打印结果

8.好用的代码块

单例模式  代码如下

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
/// <summary>
/// 单例模式基类模块的作用主要是——减少单例模式重复代码的书写
/// </summary>
/// <typeparam name="T"></typeparam>
public class BaseManager<T> where T :new ()
{
    private static T _instance;
    public static T GetInstance()
    {
        if (_instance ==null)
        {
            _instance = new T();
        }
        return _instance;
    }

}

8.1 怎么使用单例,新建脚本继承它就行了  需要新建Resources文件夹 放两个预制体测试 一个Cube一个Sphere 具体使用情况自行扩展即可

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class CeShi2 : BaseManager <CeShi2>
{
    public int oko = 0;
}

怎么继承单例的

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class CeShi3 : BaseManager <CeShi3>
{
    public bool bol = false;
}

怎么继承单例的

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class CeShi1 : MonoBehaviour
{
    // Start is called before the first frame update
    void Start()
    {
        CeShi2.GetInstance().oko++;
        CeShi3.GetInstance().bol = true;
        Debug.Log(CeShi2.GetInstance().oko
             +"    " + CeShi3.GetInstance().bol);
    }

    // Update is called once per frame
    void Update()
    {
        if (Input.GetMouseButtonDown(0))
        {
            //向缓存池中拿东西
            PoolManager.GetInstance().GetObj("Cube");
        }
        if (Input.GetMouseButtonDown(1))
        {
            PoolManager.GetInstance().GetObj("Sphere");
        }
        Debug.Log(PoolManager.GetInstance().pool1Dic.Count);
    }
}

怎么使用单例的

8.2 缓存池模块 代码如下 怎么调用的在上面脚本Update里面点击鼠标调用的缓存池拿东西

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
/// <summary>
/// 缓存池模块
/// </summary>
public class PoolManager : BaseManager <PoolManager>
{
    //这里是缓存池模块

    //创建字段存储容器
    public Dictionary<string, List<GameObject>> pool1Dic = new Dictionary<string, List<GameObject>>();

    private GameObject poolObj;
    //取得游戏物体
    public GameObject GetObj(string name)
    {
        GameObject obj = null;
        //ContainsKey判断是否包含指定的“键名”
        //.count 获得符合条件的个数
        if (pool1Dic.ContainsKey(name) && pool1Dic[name].Count > 0)
        {
            //取得List中的第一个
            obj = pool1Dic[name][0];
            //移除第零个(这样才能允许同时创建多个物体)
            //这样才是真正的“拿出来”
            pool1Dic[name].RemoveAt(0);
        }
        else
        {
            //缓存池中没有该物体，我们去目录中加载
            //外面传一个预设体的路径和名字，我内部就去加载它
            //Resources类允许你从指定的路径查找或访问资源(api)
            obj = GameObject.Instantiate(Resources.Load<GameObject>(name));
            //创建对象后，将对象的名字与池中名字相符
            obj.name = name;
        }
        //让物体显示出来
        obj.SetActive(true);
        obj.transform.parent = null;
        return obj;
    }

    //外界返还游戏物体
    public void PushObj(string name, GameObject obj)
    {
        if (poolObj == null)
        {
            poolObj = new GameObject("Pool");

        }
        //将这个物体设置父亲为空物体
        obj.transform.parent = poolObj.transform;

        //让物体失活
        obj.SetActive(false);
        //里面有记录这个键（有这个抽屉）
        if (pool1Dic.ContainsKey(name))
        {
            pool1Dic[name].Add (obj);
        }
        //未曾记录这个键（没有这个抽屉）
        else
        {
            pool1Dic.Add(name, new List<GameObject>() { obj });
        }
    }
}

缓存池代码

8.3 下面加一个缓存池返还东西  脚本直接挂在物体上即可

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
/// <summary>
/// 挂到物体身上的
/// </summary>
public class DelPush : MonoBehaviour
{
    void OnEnable()
    {
        //unity自带的延迟方法 在time秒后，延迟调用方法methodName
        Invoke("Push", 1);
    }

    //放回去
    void Push()
    {
        PoolManager.GetInstance().PushObj(transform.name, this.gameObject);
    }
}

挂在物体上的代码

简单记录一下