使用装饰器模式的 Unity 加密字符串

Question

我正在尝试应用装饰器模式来制作将单词加密为某种加密的对象，例如 L337 方法，该方法将 9 替换为 g 或 4 替换为 r。基本上，我想在输入字段中输入一个单词并在文本对象中显示加密的单词。但我无法让 L337 装饰器从主装饰器类继承。它不接受关键字“super”，所以我尝试了基本词，但是当我实现加密时，它不会接受对象 newEncryption。有人可以帮我弄清楚如何将这种模式放在一起吗？

我基本上知道装饰器模式是什么。它是制作一个对象，制作一个基本的装饰器，制作一个特定的装饰器，并用独特的方法和特性的装饰来实例化对象。

public class Encryption : MonoBehaviour
{

public static InputField inputBox;
public static Text outputText;



public interface IEncryption { void Encrypt(); }


public class TextEncryption : IEncryption
{
    public void Encrypt()
    {
        string currentText = inputBox.text;
        outputText.text = currentText;
    }
}


public abstract class encryptionDecorator : IEncryption
{
    protected IEncryption tempEncryption;
    public encryptionDecorator(IEncryption newEncryption)
    {
        tempEncryption = newEncryption;
    }

    public void Encrypt()
    {
        tempEncryption.Encrypt();
    }
}

public class L337EncryptionDecorator : encryptionDecorator
{
    public L337EncryptionDecorator(IEncryption newEncryption) : base(newEncryption)
    {
        print("Encrypting L337 Code");
    }

    public void Encrypt()
    {

    }

}

}

Answer 1

我认为您实际上想使用tempEncryption，但您并没有真正说出不能使用newEncryption 的地方，所以我猜。

但无论如何，我希望这能澄清一些事情。它从您的代码略微编辑，因此我不需要放置 GUI 的东西，但您可以将其 CnP 统一。

using UnityEngine;

public class Encryption : MonoBehaviour {

    public interface IEncryption {
        void Encrypt();
    }

    public class TextEncryption : IEncryption {
        public void Encrypt() {
        }
    }

    public abstract class EncryptionDecorator : IEncryption {

        protected IEncryption tempEncryption;

        public EncryptionDecorator(IEncryption newEncryption) {

            //this will be called when you override the constructor
            Debug.Log("In EncryptionDecorator constructor: " + newEncryption.GetType());
            tempEncryption = newEncryption;
        }

        //if you are going to override a method in a child class,
        //declare it either abstract ("no body; passes implementation to child") or 
        //virtual ("allows for a base implementation")
        public virtual void Encrypt() {

            Debug.Log("In EncryptionDecorator.Encrypt(): " + tempEncryption.GetType());
            tempEncryption.Encrypt();
        }
    }

    public class L337EncryptionDecorator : EncryptionDecorator {

        public L337EncryptionDecorator(IEncryption newEncryption) : base(newEncryption) {

            //newEncryption is a parameter, think of it as sort of a local variable.
            //but since you pass it down to the parent class, it gets assigned to tempEncryption
            //the base-class constructor is called first!
            Debug.Log("In L337EncryptionDecorator constructor: " + newEncryption.GetType());
        }

        //this overrides the base implementation. you can call it with 
        //base.Encrypt() though.
        public override void Encrypt() {
            //you have no parameters here, but you could use the inherited variable tempEncryption because you declared it protected
            Debug.Log("In L337EncrytionDecorator.Encrypt(): " + tempEncryption.GetType());

            //base refers to the base class
            base.Encrypt();
        }

    }

    void Start() {

        IEncryption encryption = new L337EncryptionDecorator(new TextEncryption());

        encryption.Encrypt();

    }
}

或者我错过了这一切？！