Created
May 14, 2013 19:31
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Quick script to shuffle a deck of cards. More specifically, to hand back cards from a deck one at a time in random order.
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| var cltnc = (function() { | |
| return { | |
| CardDeck: function(ary) { | |
| if ("string" == typeof(ary)) { | |
| this.ary = ary.split(""); | |
| } else { | |
| this.ary = ary; | |
| } | |
| this.remaining = ary.length; | |
| this.nextCard = function() { | |
| if (this.remaining <= 0) { | |
| throw new RangeError('All the cards have been dealt'); | |
| } | |
| // Take a random card out of all | |
| // available, then move this card to the end | |
| var idx = Math.floor(Math.random() * this.remaining); | |
| var ret = this.ary[idx]; | |
| this.ary[idx] = this.ary[this.remaining - 1]; | |
| this.ary[this.remaining - 1] = ret; | |
| this.remaining--; | |
| return ret; | |
| }; | |
| } | |
| }; | |
| }()); |
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