using System; 
using System.Collections.Generic; 
using System.Text; 
namespace DecoratorExample 
{ 
class Program 
{ 
  static void Main(string[] args) 
  { 
   Weapon w = new Rifle(); 
    w.ShowInfo(); 
    Enhance enhancedWeapon = new Enhance(w); 
    enhancedWeapon.EnhanceAmmo(); 
   enhancedWeapon.ShowInfo(); 
    Wear wornWeapon = new Wear(w); 
    wornWeapon.WearByRate(0.8); 
    wornWeapon.ShowInfo(); 
  } 
} 
abstract class Weapon 
{ 
  private double ammo; 
  public double Ammo 
  { 
    get { return ammo; } 
    set { ammo = value; } 
  } 
  private double attack; 
  public double Attack 
  { 
    get { return attack; } 
    set { attack = value; } 
  } 
  private double speed; 
  public double Speed 
  { 
   get { return speed; } 
    set { speed = value; } 
  } 
  private string name; 
  public string Name 
  { 
    get { return name; } 
    set { name = value; } 
  } 
  public abstract void ShowInfo(); 
} 
class Rifle : Weapon 
{ 
  public Rifle() 
  { 
    this.Ammo = 100; 
    this.Attack = 10; 
    this.Speed = 5; 
    this.Name = Rifle; 
  } 
  public override void ShowInfo() 
  { 
    Console.WriteLine(string.Format(ammot{0}, Ammo)); 
    Console.WriteLine(string.Format(attackt{0}, Attack)); 
    Console.WriteLine(string.Format(speedt{0}, Speed)); 
    Console.WriteLine(string.Format(namet{0}, Name)); 
  } 
} 
abstract class Decorator : Weapon 
{ 
  protected Weapon w; 
  public Decorator(Weapon w) 
  { 
    this.w = w; 
  } 
  public override void ShowInfo() 
  { 
    w.ShowInfo(); 
  } 
} 
class Enhance : Decorator 
{ 
  public Enhance(Weapon w) : base(w) { } 
  public void EnhanceAmmo() 
  { 
    w.Ammo += 20; 
    Console.WriteLine(>>>>>>>>>>>>Enhanced); 
  } 
} 
class Wear : Decorator 
{ 
  public Wear(Weapon w) : base(w) { } 
  public void WearByRate(double rate) 
  { 
    w.Speed = w.Speed * rate; 
    w.Attack = w.Attack * rate; 
    Console.WriteLine(>>>>>>>>>>>>Worn); 
  } 
} 
}