Solved

Perl Card Shuffle - Calling up a library file

Posted on 2008-10-28
3
1,123 Views
Last Modified: 2008-10-29
I have created a card shuffling script in perl. It shuffles up the deck and prints the top 5 cards. Now I'm being asked to remove the code that does the shuffling and include it as another function of a library file I've already create  "obj13-lib.pl". Here's what should take place. After the first "hand" is dealt, call the shuffling function again before dealing another, different hand.

Here's the code for my card shuffling program.

#!/usr/bin/perl

@startingdeck = ("A H","2 H","3 H","4 H","5 H","6 H","7 H","8 H",
                 "9 H","10 H","J H","Q H","K H",
                 "A D","2 D","3 D","4 D","5 D","6 D","7 D","8 D",
                 "9 D","10 D","J D","Q D","K D",
                 "A C","2 C","3 C","4 C","5 C","6 C","7 C","8 C",
                 "9 C","10 C","J C","Q C","K C",
                 "A S","2 S","3 S","4 S","5 S","6 S","7 S","8 S",
                 "9 S","10 S","J S","Q S","K S");
for my $x(0..99){
     my@shuffle=(
        shift(@startingdeck),
        pop(@startingdeck),
        shift(@startingdeck),
        pop(@startingdeck),
        shift(@startingdeck),
        pop(@startingdeck),
        shift(@startingdeck),
        pop(@startingdeck),
);
   push@startingdeck, @shuffle;
}
   print"@startingdeck [0..4]\n";




0
Comment
Question by:l1nuxxx
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
3 Comments
 
LVL 39

Expert Comment

by:Adam314
ID: 22822976
This sounds like homework... Experts are not allowed to do your homework.  

This page might be helpful:
http://perldoc.perl.org/perlsub.html
0
 

Author Comment

by:l1nuxxx
ID: 22823319
I understand....
what I have done so far is I removed
for my $x(0..99){
     my@shuffle=(
        shift(@startingdeck),
        pop(@startingdeck),
        shift(@startingdeck),
        pop(@startingdeck),
        shift(@startingdeck),
        pop(@startingdeck),
        shift(@startingdeck),
        pop(@startingdeck),
);
   push@startingdeck, @shuffle;
}
   print"@startingdeck [0..4]\n";
from the card shuffling program.
I added the code above to a file called "obj13-lib.pl. My card shuffling program is named obj13-1.pl. I added to line "require obj13-lib.pl" to the obj13-1.pl file. When I type ./obj13-1.pl all if prints our is the first five cards. It does not shuffle.
0
 
LVL 39

Accepted Solution

by:
Adam314 earned 125 total points
ID: 22824800
There are several ways to do this... this is what I'd recommend:

Have the main program define a deck of cards, as you have.
Have the library file have a function that takes as input a deck of cards, and returns a shuffled deck of cards.
See the perlsub documentation for more on how to have a function get input and return values.
Have the main program call the shuffling function, getting a shuffled deck.  Remove/print out 5 cards.
Have the main program call the shuffling function again - if you want to shuffle only the remaining cards, pass the output from the previous function call.  If you want to start with a new deck, pass the original deck.  Remove/print out 5 cards.
0

Featured Post

Get MongoDB database support online, now!

At Percona’s web store you can order your MongoDB database support needs in minutes. No hassles, no fuss, just pick and click. Pay online with a credit card. Handle your MongoDB database support now!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

The greatest common divisor (gcd) of two positive integers is their largest common divisor. Let's consider two numbers 12 and 20. The divisors of 12 are 1, 2, 3, 4, 6, 12 The divisors of 20 are 1, 2, 4, 5, 10 20 The highest number among the c…
Iteration: Iteration is repetition of a process. A student who goes to school repeats the process of going to school everyday until graduation. We go to grocery store at least once or twice a month to buy products. We repeat this process every mont…
Six Sigma Control Plans
I've attached the XLSM Excel spreadsheet I used in the video and also text files containing the macros used below. https://filedb.experts-exchange.com/incoming/2017/03_w12/1151775/Permutations.txt https://filedb.experts-exchange.com/incoming/201…

626 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question