public void Expresso_WhenInstantiated_ReturnsCorrectValues()
{
Beverage beverage = new Espresso();
Assert.Equal(nameof(Espresso), beverage.GetDescription());
Assert.Equal(1.99m, beverage.Value());
}
/// <summary>
/// # Motivation
/// I can now attach responsibilities to an object dynamically to add behaviour at runtime.
///
/// # Structure
/// Beverage
/// --> base class so all objects are of same type
/// CondimentDecorator : Bevarage
/// --> interchangeable with Beverage
///
/// # Sample Problem
/// A coffee shop wants to make an ordering system for all their drinks. Ofcourse there are a lot of combination with condiments/roasts.
/// We could create a base class and let all possible combinations inherit from the superclass and override their behaviour, but that would quickly become a mess.
///
/// # Solution
/// By creating a Decorator class which inherits from the baseclass (to effectively swap between types), I can now dynamically create composite objects at runtime.
/// To add a drink to the system:
/// 1. inherit from the base class, set instance fields in constructor
/// 2. override the 'Cost()' method to return desired cost
/// To add a condiment to the system:
/// 1. inherit from 'CondimentDecorator' (indirectly from base class as well
/// 2. add instance field from type Beverage
/// 3. initialize in constructor
/// 4. override GetDescription() and Cost() accordingly
/// To create a composite object at runtime:
/// 1. Create a new instance of a drink (Beverage)
/// 2. To add a condiment, assign the instance to a new instance of the condiment with itself as param
/// A. Beverage darkRoast = new DarkRoast();
/// B. darkRoast = new Mocha(darkRoast);
/// </summary>
public void Test()
{
Beverage beverage = new Espresso();
Console.WriteLine($"{beverage.GetDescription()} ${beverage.Cost()}");
Beverage beverage1 = new DarkRoast();
beverage1 = new Mocha(beverage1);
Console.WriteLine($"{beverage1.GetDescription()} ${beverage1.Cost()}");
Beverage beverage2 = new DarkRoast();
beverage2 = new Mocha(beverage2);
Console.WriteLine($"{beverage2.GetDescription()} ${beverage2.Cost()}");
beverage2 = new Mocha(beverage2);
Console.WriteLine($"{beverage2.GetDescription()} ${beverage2.Cost()}");
beverage2 = new Whip(beverage2);
Console.WriteLine($"{beverage2.GetDescription()} ${beverage2.Cost()}");
Beverage beverage3 = new HouseBlend();
beverage3 = new Soy(beverage3);
beverage3 = new Mocha(beverage3);
beverage3 = new Whip(beverage3);
Console.WriteLine($"{beverage3.GetDescription()} ${beverage3.Cost()}");
}
static void Main(string[] args)
{
Beverage beverage = new Espresso();
Console.WriteLine("{0} ${1}", beverage.GetDescription(), beverage.Cost());
beverage.SetSize(3);
Console.WriteLine("{0} ${1}", beverage.GetDescription(), beverage.Cost());
Beverage beverage2 = new Mocha(beverage);
Console.WriteLine("{0} ${1}", beverage2.GetDescription(), beverage2.Cost());
beverage2 = new Mocha(beverage2);
Console.WriteLine("{0} ${1}", beverage2.GetDescription(), beverage2.Cost());
beverage2.SetSize(2);
Console.WriteLine("{0} ${1}", beverage2.GetDescription(), beverage2.Cost());
Console.ReadKey();
}
public void Main()
{
Beverage beverage = new Espresso();
Console.WriteLine(beverage.GetDescription() + " $" + beverage.Cost());
Beverage beverage1 = new DarkRoast();
beverage1 = new Mocha(beverage1);
}
private static void RunDecoratorPattern()
{
Beverage beverage = new Espresso();
Console.WriteLine($"{beverage.GetDescription()} ${beverage.Cost()}");
Beverage beverage1 = new HouseBlend();
beverage1 = new Mocha(beverage1);
beverage1 = new Mocha(beverage1);
beverage1 = new Whip(beverage1);
Console.WriteLine($"{beverage1.GetDescription()} ${beverage1.Cost()}");
}
public void StarBuzzCoffee()
{
Beverage espresso = new Espresso();
Console.WriteLine(espresso.GetDescription() + " $" + espresso.Cost());
Beverage houseBlend = new HouseBlend();
houseBlend = new Soy(houseBlend);
houseBlend = new Mocha(houseBlend);
houseBlend = new Whip(houseBlend);
Console.WriteLine(houseBlend.GetDescription() + " $" + houseBlend.Cost());
}
// Update is called once per frame
void Update()
{
if (Input.GetKeyDown(KeyCode.A))
{
ICoffee coffee = new Espresso();
Debug.Log("Coffee discription and cost: " + coffee.GetDescription() + " $" + coffee.GetCost());
}
if (Input.GetKeyDown(KeyCode.S))
{
ICoffee coffee = new Filtered();
Debug.Log("Coffee discription and cost: " + coffee.GetDescription() + " $" + coffee.GetCost());
}
if (Input.GetKeyDown(KeyCode.D))
{
ICoffee coffee = new ChocolateDecorator(new Espresso());
Debug.Log("Coffee discription and cost: " + coffee.GetDescription() + " $" + coffee.GetCost());
}
if (Input.GetKeyDown(KeyCode.F))
{
ICoffee coffee = new ChocolateDecorator(new Filtered());
Debug.Log("Coffee discription and cost: " + coffee.GetDescription() + " $" + coffee.GetCost());
}
if (Input.GetKeyDown(KeyCode.Z))
{
ICoffee coffee = new MilkDecorator(new Espresso());
Debug.Log("Coffee discription and cost: " + coffee.GetDescription() + " $" + coffee.GetCost());
}
if (Input.GetKeyDown(KeyCode.X))
{
ICoffee coffee = new MilkDecorator(new Filtered());
Debug.Log("Coffee discription and cost: " + coffee.GetDescription() + " $" + coffee.GetCost());
}
if (Input.GetKeyDown(KeyCode.C))
{
ICoffee coffee = new ChocolateDecorator(new MilkDecorator(new Filtered()));
Debug.Log("Coffee discription and cost: " + coffee.GetDescription() + " $" + coffee.GetCost());
}
if (Input.GetKeyDown(KeyCode.V))
{
ICoffee coffee = new ChocolateDecorator(new MilkDecorator(new Espresso()));
Debug.Log("Coffee discription and cost: " + coffee.GetDescription() + " $" + coffee.GetCost());
}
}
static void Main(string[] args)
{
Beverage beverage = new Espresso();
Console.WriteLine($"{beverage.GetDescription()} : {beverage.Cost()}");
//New beverage
//Wrap it with a mocha, second mocha and then whip
Beverage beverage2 = new Espresso();
beverage2 = new Mocha(beverage2);
beverage2 = new Mocha(beverage2);
beverage2 = new Whip(beverage2);
Console.WriteLine($"{beverage2.GetDescription()} : {beverage2.Cost()}");
}
static void Main(string[] args)
{
Beverage beverage = new Espresso();
Console.WriteLine($"{beverage.GetDescription()} ${beverage.Cost()}");
Beverage beverage1 = new HouseBlend();
beverage1 = new Soy(beverage1);
beverage1 = new Mocha(beverage1);
beverage1 = new Mocha(beverage1);
Console.WriteLine($"{beverage1.GetDescription()} ${beverage1.Cost()}");
Console.ReadLine();
}
public static void RunStarBuck()
{
Console.WriteLine("StarBuck Coffe Order: ");
Beverage beverage = new Espresso();
Console.WriteLine(string.Format("{0} : ${1}", beverage.GetDescription(), beverage.GetCost()));
Beverage beverage2 = new DarkRoast();
beverage2 = new Mocha(beverage2);
beverage2 = new SteamMilk(beverage2);
beverage2 = new Whip(beverage2);
Console.WriteLine(string.Format("{0} : ${1}", beverage2.GetDescription(), beverage2.GetCost()));
}
static void Main(string[] args)
{
Beverage beverage = new Espresso();
Console.WriteLine(beverage.GetDescription() + " $" + beverage.Cost());
Beverage beverage2 = new HouseBlend();
beverage2 = new Mocha(beverage2);
beverage2 = new Soy(beverage2);
beverage2 = new Whip(beverage2);
Console.WriteLine(beverage2.GetDescription() + " $" + beverage2.Cost());
Beverage beverage3 = new DarkRoase();
beverage3 = new Mocha(beverage3);
beverage3 = new Mocha(beverage3);
beverage3 = new Whip(beverage3);
Console.WriteLine(beverage3.GetDescription() + " $" + beverage3.Cost());
//Console.ReadLine();
Console.WriteLine("---------------------\n");
// 我买了个苹果手机
Phone phone = new ApplePhone();
// 现在想贴膜了
Decorator applePhoneWithSticker = new Sticker(phone);
// 扩展贴膜行为
applePhoneWithSticker.Print();
Console.WriteLine("----------------------\n");
// 现在我想有挂件了
Decorator applePhoneWithAccessories = new Accessories(phone);
// 扩展手机挂件行为
applePhoneWithAccessories.Print();
Console.WriteLine("----------------------\n");
// 现在我同时有贴膜和手机挂件了
Sticker sticker = new Sticker(phone);
Accessories applePhoneWithAccessoriesAndSticker = new Accessories(sticker);
applePhoneWithAccessoriesAndSticker.Print();
Console.ReadLine();
}
static void Main(string[] args)
{
Beverage.Beverage espresso = new Espresso();
Console.WriteLine($"{espresso.GetDescription()}, ${espresso.Cost()}");
Beverage.Beverage soyHouseBlend = new HouseBlend();
soyHouseBlend = new Soy(soyHouseBlend);
Console.WriteLine($"{soyHouseBlend.GetDescription()}, ${soyHouseBlend.Cost()}");
Beverage.Beverage doubleMochaWithWhipInDarkRoast = new DarkRoast();
doubleMochaWithWhipInDarkRoast = new Mocha(doubleMochaWithWhipInDarkRoast);
doubleMochaWithWhipInDarkRoast = new Mocha(doubleMochaWithWhipInDarkRoast);
doubleMochaWithWhipInDarkRoast = new Whip(doubleMochaWithWhipInDarkRoast);
Console.WriteLine($"{doubleMochaWithWhipInDarkRoast.GetDescription()}, ${doubleMochaWithWhipInDarkRoast.Cost()}");
Console.ReadKey();
}
static void Main()
{
Beverage beverage0 = new Espresso();
System.Console.WriteLine($"{beverage0.GetDescription()} {beverage0.Cost()} $");
Beverage beverage1 = new DarkRoast();
beverage1 = new Mocha(beverage1);
beverage1 = new Mocha(beverage1);
beverage1 = new Whip(beverage1);
System.Console.WriteLine($"{beverage1.GetDescription()} {beverage1.Cost()} $");
Beverage beverage2 = new HouseBlend();
beverage2 = new Soy(beverage2);
beverage2 = new Mocha(beverage2);
beverage2 = new Whip(beverage2);
System.Console.WriteLine($"{beverage2.GetDescription()} {beverage2.Cost()} $");
}
static void Main(string[] args)
{
Beverage beverage = new Espresso();
Console.WriteLine($"{beverage.GetDescription()} ${beverage.Cost()}");
Beverage beverage2 = new DarkRoast();
beverage2 = new Mocha(beverage2);
beverage2 = new Mocha(beverage2);
beverage2 = new Whip(beverage2);
Console.WriteLine($"{beverage2.GetDescription()} ${beverage2.Cost()}");
Beverage beverage3 = new HouseBlend();
beverage3 = new Soy(beverage3);
beverage3 = new Mocha(beverage3);
beverage3 = new Whip(beverage3);
Console.WriteLine($"{beverage3.GetDescription()} ${beverage3.Cost()}");
}
static void Decorator()
{
Beverage beverage1 = new Espresso();
Console.WriteLine(beverage1.GetDescription());
Console.WriteLine(beverage1.GetCost());
Beverage beverage2 = new Espresso();
beverage2 = new Mocha(beverage2);
Console.WriteLine(beverage2.GetDescription());
Console.WriteLine(beverage2.GetCost());
Beverage beverage3 = new Espresso();
beverage3 = new Mocha(beverage3);
beverage3 = new Whip(beverage3);
Console.WriteLine(beverage3.GetDescription());
Console.WriteLine(beverage3.GetCost());
}
static void Main(string[] args)
{
// Simulando o pedido de um Café Expresso sem condimentos
Beverage b1 = new Espresso();
Console.WriteLine(b1.GetDescription() + " - R$ " + b1.Cost());
// Simulando o pedido de um Café DarkRoast com duplo Moca (chocolate) e creme
Beverage b2 = new DarkRoast();
b2 = new Mocha(b2);
//b2 = new Mocha(b2);
b2 = new Whip(b2);
Console.WriteLine(b2.GetDescription() + " - R$ " + b2.Cost());
// Simulando o pedido de um Café HouseBlend com Moca, soja e creme
Beverage b3 = new HouseBlend();
b3 = new Soy(b3);
b3 = new Mocha(b3);
b3 = new Whip(b3);
Console.WriteLine(b3.GetDescription() + " - R$ " + b3.Cost());
Console.ReadKey();
}
static void Main(string[] args)
{
Beverage beverage = new Espresso();
Console.WriteLine(beverage.GetDescription() + " $" + beverage.Cost());
Beverage beverageDark = new DarkRoast();
beverageDark = new Mocha(beverageDark);
beverageDark = new Mocha(beverageDark);
beverageDark = new Whip(beverageDark);
Console.WriteLine(beverageDark.GetDescription() + " $" + beverageDark.Cost());
Beverage beverageHouse = new HouseBlend();
beverageHouse = new Mocha(beverageHouse);
beverageHouse = new Soy(beverageHouse);
beverageHouse = new Whip(beverageHouse);
Console.WriteLine(beverageHouse.GetDescription() + " $" + beverageHouse.Cost());
Console.ReadLine();
}
static void Main(string[] args)
{
Beverage bev = new Espresso();
Console.WriteLine(bev.GetDescription() + "- $" + bev.cost());
Beverage bev2 = new DarkRoast();
bev2 = new Soy(bev2);
bev2 = new Mocha(bev2);
bev2 = new Soy(bev2);
Console.WriteLine(bev2.GetDescription() + " - $" + bev2.cost());
Beverage bev3 = new HouseBlend();
bev3 = new Soy(bev3);
bev3 = new Mocha(bev3);
bev3 = new Whip(bev3);
bev3 = new Soy(bev3);
bev3 = new Whip(bev3);
Console.WriteLine(bev3.GetDescription() + " - $" + bev3.cost());
Console.ReadKey();
}
static void Main(string[] args)
{
Beverage beverage = new Espresso();
Console.WriteLine(beverage.GetDescription() + ": " + beverage.Cost().ToString());
Beverage beverage2 = new DarkRoast();
beverage2 = new Mocha(beverage2);
beverage2 = new Mocha(beverage2);
beverage2 = new Whip(beverage2);
Console.WriteLine(beverage2.GetDescription() + ": " + beverage2.Cost().ToString());
Beverage beverage3 = new HouseBlend();
beverage3 = new Soy(beverage3);
beverage3 = new Mocha(beverage3);
beverage3 = new Whip(beverage3);
Console.WriteLine(beverage3.GetDescription() + ": " + beverage3.Cost().ToString());
Console.ReadKey();
}
