Builder建造者模式_C#

最新推荐文章于 2024-12-31 09:54:12 发布

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本文介绍建造者模式在Unity中的应用，通过将复杂对象的构造与表示分离，简化对象的创建过程。用户仅需指定对象类型即可，无需关心内部构造细节。

建造者模式可以将部件和其组装过程分开，一步一步创建一个复杂的对象。用户只需要指定复杂对象的类型就可以得到该对象，而无须知道其内部的具体构造细节


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

public class BuilderStructure : MonoBehaviour
{
	void Start ( )
    {
        
        Director director = new Director();

        Builder b1 = new ConcreteBuilder1();
        Builder b2 = new ConcreteBuilder2();

        //只需要指定类型，不需要知道具体组件
        director.Construct(b1);
        Product p1 = b1.GetResult();
        p1.Show();

        director.Construct(b2);
        Product p2 = b2.GetResult();
        p2.Show();
    }
}

/// <summary>
///分析复杂流程
/// </summary>
class Director
{
    //流程
    public void Construct(Builder builder)
    {
        builder.BuildPartA();
        builder.BuildPartB();
    }
}

/// <summary>
/// 具体流程实现
/// </summary>
abstract class Builder
{
    public abstract void BuildPartA();
    public abstract void BuildPartB();
    public abstract Product GetResult();
}

/// <summary>
/// The 'ConcreteBuilder1' class
/// </summary>
class ConcreteBuilder1 : Builder
{
    private Product _product = new Product();

    public override void BuildPartA()
    {
        _product.Add("PartA");
    }

    public override void BuildPartB()
    {
        _product.Add("PartB");
    }

    public override Product GetResult()
    {
        return _product;
    }
}

/// <summary>
/// The 'ConcreteBuilder2' class
/// </summary>
class ConcreteBuilder2 : Builder
{
    private Product _product = new Product();

    public override void BuildPartA()
    {
        _product.Add("PartX");
    }

    public override void BuildPartB()
    {
        _product.Add("PartY");
    }

    public override Product GetResult()
    {
        return _product;
    }
}

/// <summary>
/// The 'Product' class
/// </summary>
class Product
{
    private List<string> _parts = new List<string>();

    public void Add(string part)
    {
        _parts.Add(part);
    }

    public void Show()
    {
      Debug.Log("\n产品 -------");
        foreach (string part in _parts)
        {
            Debug.Log(part);
        }

    }
}