好久沒有更新設計模式系列教程了

本文給大家介紹建造者模式

寫在前面

在建立遊戲物件時往往一個物件伴隨著多個屬性或建立邏輯

此時為了構建這個複雜的遊戲物件將各個部分的邏輯進行分離（與工廠模式最主要的作用區別）

案例分析

建造者類

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


/// <summary>
/// 建造者模式的建造者角色
/// </summary>
public abstract class IBuilder
{
    public ICharacter character { get; set; }
    public abstract void AddAttribute();
    public abstract void AddCharacterGameobject();
    public abstract void AddWeaponGameObject();
    public abstract ICharacter ResultCharacter();
}
 

具體士兵建造者類

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

public class SliderBuilder : IBuilder
{
    public SliderBuilder()
    {
        character = new SliderCharacter();
    }

    public override void AddAttribute()
    {
        character.SetAttribute();
    }

    public override void AddCharacterGameobject()
    {
        character.SetCharacter();
    }

    public override void AddWeaponGameObject()
    {
        character.SetWeapon();
    }

    public override ICharacter ResultCharacter()
    {
        Debug.Log("成功建立士兵");
        return character;
    }
}
 

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

public class EnemyBuilder : IBuilder
{
    public EnemyBuilder()
    {
        character = new EnemyCharacter();
    }

    public override void AddAttribute()
    {
        character.SetAttribute();
    }

    public override void AddCharacterGameobject()
    {
        character.SetCharacter();
    }

    public override void AddWeaponGameObject()
    {
        character.SetWeapon();
    }

    public override ICharacter ResultCharacter()
    {
        Debug.Log("成功建立敵人");
        return character;
    }
}
 

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

/// <summary>
/// 建造者模式的導演角色
/// </summary>
public class Director : MonoBehaviour
{
    public static ICharacter ConstructCharacter(IBuilder builder)
    {
        builder.AddAttribute();
        builder.AddCharacterGameobject();
        builder.AddWeaponGameObject();

        return builder.ResultCharacter();
    }
}

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

/// <summary>
/// 建造者模式的產品角色
/// </summary>
public abstract class ICharacter
{
    public abstract void SetAttribute();
    public abstract void SetCharacter();
    public abstract void SetWeapon();
}

士兵類

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

public class SliderCharacter:ICharacter
{
    public string name { get; set; }
    public string characterPrefabPath { get; set; }
    public string weaponPrefabPath { get; set; }
    public GameObject characterGameObject { get; set; }
    public GameObject weaponGameObject { get; set; }


    public override void SetAttribute()
    {
        name = "Slider";
        characterPrefabPath = "SliderCharacterPrefabPath";
        weaponPrefabPath = "SliderWeaponPrefabPath";
    }

    public override void SetCharacter()
    {
       // characterGameObject = GameObject.Instantiate(Resources.Load(characterPrefabPath) as GameObject);
    }

    public override void SetWeapon()
    {
       // characterGameObject = GameObject.Instantiate(Resources.Load(weaponPrefabPath) as GameObject);
    }
}

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

public class EnemyCharacter : ICharacter
{
    public string name { get; set; }
    public string characterPrefabPath { get; set; }
    public string weaponPrefabPath { get; set; }
    public GameObject characterGameObject { get; set; }
    public GameObject weaponGameObject { get; set; }


    public override void SetAttribute()
    {
        name = "Enemy";
        characterPrefabPath = "EnemyCharacterPrefabPath";
        weaponPrefabPath = "EnemyWeaponPrefabPath";
    }

    public override void SetCharacter()
    {
       // characterGameObject = GameObject.Instantiate(Resources.Load(characterPrefabPath) as GameObject);
    }

    public override void SetWeapon()
    {
       // characterGameObject = GameObject.Instantiate(Resources.Load(weaponPrefabPath) as GameObject);
    }
}

測試

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

public class BuilderDesigner : MonoBehaviour
{
    private void Start()
    {
        ICharacter slider = Director.ConstructCharacter(new SliderBuilder());
        ICharacter enemy = Director.ConstructCharacter(new EnemyBuilder());
    }    
}

模式分析