help with random number

help with random number

[mountainman]

Hello to all of you smart people out there. I need some help. Im
trying to create a random number generator that will only pull a
specific number once and not repeat till told to do so. Im using an
example I found on the net and it works great. I just dont know what
to do to tell it not to pull the same number a second time untill i
can reset it. Like a card game I need it to pull an Ace of Spades only
once till the game is over.  Any help would be very appreciated.
Thanks

Re: help with random number

[Pascal Obry]

mountainman <mountainman@123.net> writes:

> Hello to all of you smart people out there. I need some help. Im
> trying to create a random number generator that will only pull a
> specific number once and not repeat till told to do so. Im using an
> example I found on the net and it works great. I just dont know what
> to do to tell it not to pull the same number a second time untill i
> can reset it. Like a card game I need it to pull an Ace of Spades only
> once till the game is over.  Any help would be very appreciated.
> Thanks

What you want is a suite of Card, the cards on the deck are shuffled (so not
ordered), each one must be picked only once.

1)  Have a boolean associated with a card to tell if it has already been
    picked. Here you use the random generator to pick a card (not very
    efficient).

2)  Build an array of cards then swap 2 cards randomly many times, this will
    give you a shuffled cards deck (well an array of card :). Here you use the
    random generator to shuffle the cards.

3)  <put your own design here>

Pascal.

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Re: help with random number

[Robert Dewar]

In article <5ltu0to0o3mt8c9liev26229n9mnhi0rvu@4ax.com>,
  mountainman wrote:
>. Like a card game I need it to pull an Ace of Spades only
> once till the game is over.  Any help would be very
> appreciated.


This is a very standard beginning programming assignment
(shuffling a deck of cards).

Don't look for a built in random number generator to do this,
that's not the point of the excercise.

Instead, think about how you could use perfect coin tosses
to shuffle a deck, or think about how, when there are 37
cards left, you choose a random one of the cards left.



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