From: Ryan Davis <ryand-ruby@...>
Date: 2011-01-21T11:24:29+09:00
Subject: Re: Deleting from hashes


On Jan 20, 2011, at 16:56 , Josh Rowe wrote:

> Hi all!
> Following on from my previous question
> http://www.rubyforum.com/topic/912567#new
> I need some help with deleting cards from a hash. Heres what I have
> 
> #!/usr/bin/env ruby
> Card = Struct.new :name, :type, :atk, :defn, :level
> $deck = [
>  Card["Celtic Guardian", :monster, 1400, 1200,4],
>  Card["Dark Magician", :monster, 2500, 2100,7],
> ]
> [...]
> So what I need help with is deleting the card I just drew and stopping
> it from being drawn again.

First off, that's an array, not a hash.

Second, it sounds like you could use some 'ri' love. Try this in your terminal:

    ri Array

You should see all the methods available on Array. From there it is pretty easy to guess what you want as ruby methods are intelligently named.

> Also I've heard it's bad to use global
> variable but is it ok to have just one?

Meh. For learning the language they're fine.