//this tangles up both up and down and side to side movement
//the strategy pattern helps us make a class per movement type
//the details of the movement are not encapsulated here
//this will lead to a large class with a bunch of logic conditionals
private static void _move(Henchman henchman)
{
if (henchman.Name == "Dave")
{
Console.WriteLine("Moving Up and down!");
}
else
{
Console.WriteLine("Moving side to side!");
}
}
static void Main(string[] args)
{
//for this example we are creating two henchmen and bad guys that will appear in a video game
//each henchmen\bad guy normally moves side to side, but for henchmen\bad guys named 'Dave', they get to move up and down.
//henchmen do not use a strategy pattern
var daveHenchman = new Henchman
{
Name = "Dave"
};
var fredHenchman = new Henchman
{
Name = "Fred"
};
//we have to do a more explicit move for our henchmen
_move(daveHenchman);
_move(fredHenchman);
//bad guys do use a strategy pattern
//this example is also using a factory to create our bad guys
//inside the factory you'll see that each bad guy is created and a movement strategy is selected
//the strategy pattern is encapsulating a behavior in a call class through a concrete implementation of an abstract interface or class
//the 'how' to move is encapsulated in to discrete classes
//dave will move up and down
var daveBadGuy = BadGuyFactory.Create("Dave");
daveBadGuy.MovementStrategy.Move();
//fred will move side to side
var fredBadGuy = BadGuyFactory.Create("Fred");
fredBadGuy.MovementStrategy.Move();
Console.ReadKey();
}