From: Smgspices@...
Date: 2006-11-17T07:23:00+09:00
Subject: Re: Beginner Needs Help

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>> def  build_deck
>>   0.upto(51) {|i|   @deck.push(i.divmod(13))}
>>   # deck consists of 52  2-member  arrays, [suit, rank], 
>>   # each  representing a playing card.  In use, the first 
>>   #  13 members is hand[0] and the next 13  are hand[1],  etc.
>>   # hand will be defined in a   subclass.
>>   return @deck
>> end
>  [...]
>> def initialize
>>    super
>>   @hands = Array.new(4) {|idx|   Array.new(4)}
>>   # hands is a 4 by 4 array for   player,suit
>> end
> [...]
>> def   build_hands
>>   self.shuffle_deck
>>    0.upto(51) {|i| @hands[i/13][@deck[i][0]] += 0b1 <<   @deck[i][1]}
>
> IRB shows @hands looks like:
>
>  irb(main):024:0> hands = Array.new(4) {|idx|  Array.new(4)}
>  => [[nil, nil, nil, nil], [nil, nil, nil, nil], [nil, nil, nil, nil], 
[nil,  nil, nil, nil]]
>
> So,
>
>  @hands[0][@deck[0][0]]
>
>is:
>
>  @hands[0][0]
>
> which is fetching the first 'nil' shown above in  IRB.
>
>
> Regards,
>
> Bill

Ah, thanks Bill and others who might respond. All I have to do is set the  
initial values of hands to 0, not nil. 
 
beep beep
 
Charlie

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