🚀 go-pugleaf

U. N. derGrad (u519876@csi.UOttawa.CA) wrote:
: Hi there,
: 
: I'm looking for a quick and simple algorithm for shuffling a normal
: deck of cards.  A joker or two could also be added to the deck (I'm 
: making a poker game).
: 
: Any suggestions?  Programming language is C, on a Unix station.
: 
: Much appreciated,

make a single pass through the array of cards, and swap each card with another
card chosen at random:  ie:

	for i = 1 to NUM_CARDS
		r = random number between 1 and NUM_CARDS
		swap card[i] and card[r]
	end for

As long as the random generator is reasonably random, this will shuffle the
deck.

--
  Trent Tobler - ttobler@unislc.slc.unisys.com