C＃：我正在尝试编写一种方法来创建类的新实例，并将某个ID输入作为方法中的参数

Question

I have created a text adventure thing which loads up a certain type of world file and allows you to play through it, however I am now trying to build a program that allows somebody to actually build one of these worlds. I need to be able to add rooms to this world through this AddRoom() method.

    public void AddRoom(String id, String name, String description)
    {
        Room id = new Room(name, description);
    }
    AddRoom("kitchen1", "Old Kitchen", "A dark, cold, old kitchen");

This should create:

Room kitchen1;

But of course I can't have the ID of a room being a string, how would I go about changing the AddRoom method so that I was able to determine the name of the room in the parameters.

Answer 1

You can use a dictionnary for this. Here's an example:

Dictionary<string, Room> rooms = new Dictionary<string, Room>();

this will create a Dictionary where the key is the Room ID (ex: "kitchen1") and the value is the Room object and in your AddRoom method you can use it like this:

public void AddRoom(String id, String name, String description)
{
    // Note that the rooms variable must be accessible inside your method
    rooms.Add(id, new Room(name, description));
}

and then later your access the room using its id like this:

rooms["kitchen1"].Name // Or whatever variable the name is stored in
rooms["kitchen1"].Description // Or whatever variable the Description is stored in

Answer 2

    public struct Room
    {
        public String Name;
        public String Desc;
    }
    Dictionary<string, Room> World = new Dictionary<string, Room>();
    public void AddRoom(String id, String name, String description)
    {
        Room room = new Room() { Name = name, Desc = description };
        World.Add(id, room);
    }

AddRoom("kitchen1", "Old Kitchen", "A dark, cold, old kitchen");

Now to Fetch detail of kitchen1 from world

Room kitchen = World["kitchen1"];
kitchen.Name  //will give name
kitchen.Desc  //will give Description of kitchen