Hangman Game

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December 1st, 2009, 03:23 PM

Allu_Akbar

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Hangman Game

How do you select random words from a list of words using a global variable? Or a different method?

December 1st, 2009, 04:17 PM

L7Sqr

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Use Array#shuffle

Code:

irb(main):001:0> letters = ('a'..'z').to_a
=> ["a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z"]
irb(main):002:0> letters.shuffle.shift
=> "l"
irb(main):003:0> letters.shuffle.shift
=> "i"
irb(main):004:0> letters.shuffle.shift
=> "p"
irb(main):005:0> letters.shuffle.shift
=> "h"
irb(main):006:0> letters.shuffle.shift
=> "q"

If Array#shuffle is not available in your distribution you can 'fake' it with sort_by

Code:

irb(main):007:0> letters.sort_by { rand }
=> ["q", "g", "l", "f", "p", "d", "e", "y", "v", "h", "z", "r", "n", "s", "k", "u", "a", "x", "b", "t", "o", "c", "w", "i", "j", "m"]
irb(main):008:0> letters.sort_by { rand }
=> ["n", "y", "z", "o", "h", "p", "x", "v", "b", "m", "t", "r", "q", "k", "a", "g", "j", "c", "u", "d", "l", "w", "s", "f", "i", "e"]

The examples above use only letters for brevity, but you can use words as well.

Code:

irb(main):010:0> ["A", "List", "Of", "Words"].shuffle
=> ["Words", "List", "Of", "A"]

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December 1st, 2009, 06:26 PM

Allu_Akbar

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Thanks but

im looking for something different. Here is a example

def initialize(word=nil)
# if there is a word, use it
if word != nil
@word = word
else
# otherwise use a random word from the dictionary
@word = $words
end

$words is my global varibale that links my words but i dont know how to randomize it and select one word from my list.

December 1st, 2009, 10:16 PM

L7Sqr

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Location: Constant Limbo

Posts: 989

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Quote:

Originally Posted by Allu_Akbar

$words is my global varibale that links my words

That statement doesnt make much sense. What do you mean by links?
If $words is an array, just shuffle it.

Code:

else
   # otherwise use a random word from the dictionary
   @word = $words.shuffle.shift
end

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