C#•8mo ago

❔ Which types should I use for this dictionary

I am making a command interpreter from a game, which the players can use via /command <parameters>, each command can have different parameters, and different types for each parameter.

@Command(name="help",permission=Permission.User)
public void help(CommandContext context, Player player) {...}

@Command(name="help",permission=Permission.User)
public void help(CommandContext context, Player player) {...}

The only necessary parameter is context, player can be any other type, for example a string. So now I wanted to create a dictionary like { Player=PlayerConverter, Foo=FooConverter } which takes parameter type of the method, and converts it with the converter class from string to x. So the issue is that I do not know which types I need in the dictionary

5 Replies

Pobiega•8mo ago

Mhm, so you're essentially re-inventing DI but for methods I would do this using a CommandHandler style approach myself

Akex•8mo ago

could you give me a small example?

Pobiega•8mo ago

[GameCommand("help")]
public class HelpCommandHandler : ICommandHandler
{
    private readonly Player _player;

    public HelpCommandHandler(Player player)
    {
        _player = player;
    }

    public void Handle(CommandContext context)
    {
        ..
    }
}

[GameCommand("help")]
public class HelpCommandHandler : ICommandHandler
{
    private readonly Player _player;

    public HelpCommandHandler(Player player)
    {
        _player = player;
    }

    public void Handle(CommandContext context)
    {
        ..
    }
}

use the attributes to build a keyed type map (string to Type), then resolve the correct type from a DI container aware of your domain (players etc), cast it to ICommandHandler, then just pass the context to the handler and you're done

Akex•8mo ago

thanks! Ill give it a try

Accord•8mo ago

Was this issue resolved? If so, run /close - otherwise I will mark this as stale and this post will be archived until there is new activity.

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❔ Which types should I use for this dictionary