Decorator Pattern | C# Online Compiler

Decorator Pattern by 7aylor

using System;

public class Program
{
	public static void Main()
	{
		DamageGiver dg = new BasePlayerDamage();
		Console.WriteLine(dg.getDamageDescription());
		Console.WriteLine(dg.getDamage());

		DamageGiver dg2 = new BasePlayerDamage();
		dg2 = new Sword(dg2);
		Console.WriteLine(dg2.getDamageDescription());
		Console.WriteLine(dg2.getDamage());
		
		DamageGiver dg3 = new BasePlayerDamage();
		dg3 = new Sword(dg3);
		dg3 = new Ring(dg3);
		Console.WriteLine(dg3.getDamageDescription());
		Console.WriteLine(dg3.getDamage());
		
		DamageGiver dg4 = new BasePlayerDamage();
		dg4 = new Sword(dg4);
		dg4 = new Ring(dg4);
		dg4 = new Amulet(dg4);
		Console.WriteLine(dg4.getDamageDescription());
		Console.WriteLine(dg4.getDamage());
	}
}

//abstract component
public abstract class DamageGiver
{
	public int Damage {get; set;}
	public string DamageDescription { get; set; }
	
	public abstract int getDamage();
	
	public abstract string getDamageDescription();
}

//abstract decorator
public abstract class DamageModifierDecorator : DamageGiver
{
	public override abstract int getDamage();
	public override abstract string getDamageDescription();

}

//concrete component
public class BasePlayerDamage : DamageGiver
{
	public BasePlayerDamage()
	{
		Damage = 3;
		DamageDescription = "Fists";
	}
	
	public override int getDamage()
	{
		return this.Damage;
	}
	
	public override string getDamageDescription()
	{
		return this.DamageDescription + " for " + this.Damage + " damage";
	}
}

//concrete decorator
public class Sword : DamageModifierDecorator
{

	DamageGiver damageGiver;

	public Sword(DamageGiver dm)
	{
		damageGiver = dm;
		Damage = 10;
		DamageDescription = "Sword";
	}
	
	public override int getDamage()
	{
		return damageGiver.getDamage() + this.Damage;
	}
	
	public override string getDamageDescription()
	{
		return damageGiver.getDamageDescription() + ", " + this.DamageDescription + " for " + this.Damage + " damage";
	}
}

//concrete decorator
public class Ring : DamageModifierDecorator
{

	DamageGiver damageGiver;

	public Ring(DamageGiver dm)
	{
		damageGiver = dm;
		Damage = 4;
		DamageDescription = "Ring";
	}
	
	public override int getDamage()
	{
		return damageGiver.getDamage() + this.Damage;
	}
	
	public override string getDamageDescription()
	{
		return damageGiver.getDamageDescription() + ", " + this.DamageDescription + " for " + this.Damage + " damage";
	}
}

//concrete decorator
public class Amulet : DamageModifierDecorator
{

	DamageGiver damageGiver;

	public Amulet(DamageGiver dm)
	{
		damageGiver = dm;
		Damage = 7;
		DamageDescription = "Amulet";
	}
	
	public override int getDamage()
	{
		return damageGiver.getDamage() + this.Damage;
	}
	
	public override string getDamageDescription()
	{
		return damageGiver.getDamageDescription() + ", " + this.DamageDescription + " for " + this.Damage + " damage";
	}
}

​x
 
using System;
​
public class Program
{
    public static void Main()
    {
        DamageGiver dg = new BasePlayerDamage();
        Console.WriteLine(dg.getDamageDescription());
        Console.WriteLine(dg.getDamage());
​
        DamageGiver dg2 = new BasePlayerDamage();
        dg2 = new Sword(dg2);
        Console.WriteLine(dg2.getDamageDescription());
        Console.WriteLine(dg2.getDamage());
        
        DamageGiver dg3 = new BasePlayerDamage();
        dg3 = new Sword(dg3);
        dg3 = new Ring(dg3);
        Console.WriteLine(dg3.getDamageDescription());
        Console.WriteLine(dg3.getDamage());
        
        DamageGiver dg4 = new BasePlayerDamage();
        dg4 = new Sword(dg4);
        dg4 = new Ring(dg4);
        dg4 = new Amulet(dg4);
        Console.WriteLine(dg4.getDamageDescription());
        Console.WriteLine(dg4.getDamage());
    }
}
​
//abstract component
public abstract class DamageGiver
{
    public int Damage {get; set;}
    public string DamageDescription { get; set; }
    
    public abstract int getDamage();
    
    public abstract string getDamageDescription();
}
​
//abstract decorator
public abstract class DamageModifierDecorator : DamageGiver
{
    public override abstract int getDamage();
    public override abstract string getDamageDescription();
​
}
​
//concrete component
public class BasePlayerDamage : DamageGiver
{
    public BasePlayerDamage()
    {
        Damage = 3;
        DamageDescription = "Fists";
    }
    
    public override int getDamage()
    {
        return this.Damage;
    }
    
    public override string getDamageDescription()
    {
        return this.DamageDescription + " for " + this.Damage + " damage";
    }
}
​
//concrete decorator
public class Sword : DamageModifierDecorator
{
​
    DamageGiver damageGiver;
​
    public Sword(DamageGiver dm)
    {
        damageGiver = dm;
        Damage = 10;
        DamageDescription = "Sword";
    }
    
    public override int getDamage()
    {
        return damageGiver.getDamage() + this.Damage;
    }
    
    public override string getDamageDescription()
    {
        return damageGiver.getDamageDescription() + ", " + this.DamageDescription + " for " + this.Damage + " damage";
    }
}
​
//concrete decorator
public class Ring : DamageModifierDecorator
{
​
    DamageGiver damageGiver;
​
    public Ring(DamageGiver dm)
    {
        damageGiver = dm;
        Damage = 4;
        DamageDescription = "Ring";
    }
    
    public override int getDamage()
    {
        return damageGiver.getDamage() + this.Damage;
    }
    
    public override string getDamageDescription()
    {
        return damageGiver.getDamageDescription() + ", " + this.DamageDescription + " for " + this.Damage + " damage";
    }
}
​
//concrete decorator
public class Amulet : DamageModifierDecorator
{
​
    DamageGiver damageGiver;
​
    public Amulet(DamageGiver dm)
    {
        damageGiver = dm;
        Damage = 7;
        DamageDescription = "Amulet";
    }
    
    public override int getDamage()
    {
        return damageGiver.getDamage() + this.Damage;
    }
    
    public override string getDamageDescription()
    {
        return damageGiver.getDamageDescription() + ", " + this.DamageDescription + " for " + this.Damage + " damage";
    }
}

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Cached Result
Last Run:	10:02:51 am
Compile:	0.006s
Execute:	0.05s
Memory:	607.69kb
CPU:	0.056s

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