static void Main(string[] args)
{
var FC5 = new Games("Far Cry 5", GenreType.FirstPerson, WorldType.OpenWorld);
var PUBG = new Games("PUBG", GenreType.FirstPerson, WorldType.OpenWorld);
var RainbowSixSiege = new Games("R6", GenreType.FirstPerson, WorldType.MissionBased);
var ACOrigins = new Games("Assassins Creed Origins", GenreType.ThirdPerson, WorldType.OpenWorld);
Games[] products = { FC5, PUBG, RainbowSixSiege, ACOrigins };
WriteLine("All games in this instance:");
foreach (var g in products)
{
WriteLine($" - {g.Name}");
}
var pf = new ProductFilter();
WriteLine("First person games products (Non OCP):");
foreach (var p in pf.FilterByGenre(products, GenreType.FirstPerson))
{
WriteLine($" - {p.Name} is first person");
}
WriteLine("Third person games products (Non OCP):");
foreach (var p in pf.FilterByGenre(products, GenreType.ThirdPerson))
{
WriteLine($" - {p.Name} is third person");
}
// ^^ BEFORE
// vv AFTER
WriteLine("");
var bf = new BetterFilter();
WriteLine("First person games (OCP):");
foreach (var p in bf.Filter(products, new GenreSpecification(GenreType.FirstPerson)))
{
WriteLine($" - {p.Name} is first person");
}
WriteLine("Third person games (OCP):");
foreach (var p in bf.Filter(products, new GenreSpecification(GenreType.ThirdPerson)))
{
WriteLine($" - {p.Name} is third person");
}
WriteLine("Open world games");
foreach (var p in bf.Filter(products, new SizeSpecification(WorldType.OpenWorld)))
{
WriteLine($" - {p.Name} is open world");
}
WriteLine("Open world first person shooters");
foreach (var p in bf.Filter(products, new AndSpecification <Games>(new GenreSpecification(GenreType.FirstPerson), new SizeSpecification(WorldType.OpenWorld)))
)
{
WriteLine($" - {p.Name} is open world first person.");
}
}
static void Main(string[] args)
{
var apple = new Product("Apple", Color.Green, Size.Small);
var tree = new Product("Tree", Color.Green, Size.Large);
var house = new Product("House", Color.Blue, Size.Large);
Product[] products = { apple, tree, house };
var pf = new ProductFilter();
WriteLine("Green products (old):");
foreach (var p in pf.FilterByColor(products, Color.Green))
{
WriteLine($" - {p.Name} is green");
}
// ^^ BEFORE
// vv AFTER
var bf = new BetterFilter();
WriteLine("Green products (new):");
foreach (var p in bf.Filter(products, new ColorSpecification(Color.Green)))
{
WriteLine($" - {p.Name} is green");
}
WriteLine("Large products");
foreach (var p in bf.Filter(products, new SizeSpecification(Size.Large)))
{
WriteLine($" - {p.Name} is large");
}
var largeGreenSpec = new ColorSpecification(Color.Green)
& new SizeSpecification(Size.Large);
//var largeGreenSpec = Color.Green.And(Size.Large);
WriteLine("Large blue items");
foreach (var p in bf.Filter(products,
new AndSpecification <Product>(new ColorSpecification(Color.Blue),
new SizeSpecification(Size.Large)))
)
{
WriteLine($" - {p.Name} is big and blue");
}
}
static void Main(string[] args)
{
var apple = new Product("Apple", Color.Green, Size.Small);
var tree = new Product("Tree", Color.Green, Size.Large);
var house = new Product("House", Color.Blue, Size.Large);
Product[] products = { apple, tree, house };
var pf = new ProductFilter();
WriteLine("Green products (old):");
foreach (var p in pf.FilterByColor(products, Color.Green))
{
WriteLine($" - {p.Name} is green");
}
// ^^ BEFORE
// vv AFTER
//abstract actual enum into different func/obj then add different obj into the actual func instead of modifying the filter func
var bf = new BetterFilter();
WriteLine("Green products (new):");
foreach (var p in bf.Filter(products, new ColorSpecification(Color.Green)))
{
WriteLine($" - {p.Name} is green");
}
WriteLine("Large products");
foreach (var p in bf.Filter(products, new SizeSpecification(Size.Large)))
{
WriteLine($" - {p.Name} is large");
}
WriteLine("Large blue items");
foreach (var p in bf.Filter(products,
new AndSpecification <Product>(new ColorSpecification(Color.Blue), new SizeSpecification(Size.Large)))
)
{
WriteLine($" - {p.Name} is big and blue");
}
}