javascript random cards on Big2 / DuDiZhu

gistfile1.js

<script lanugage="javascript" type="text/javascript">
/* 
 * Author: Zeuxis.Lo
 * Description: random cards on Big2 / DuDiZhu
 */
(function(window, undefined) {
	
	var DealCard = function() {
		this.roleA = [];
		this.roleB = [];
		this.roleC = [];
		this.roleD = [];
		this.remnant = [];
		this.id = [0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53];
	
		this.icon = ['葵扇', '紅心', '梅花', '街塼'];
		this.name = ["A", "2", "3", "4", "5", "6", "7", "8", "9", "10", "J", "Q", "K"];
		this.joker= ["Joker S", "Joker B"];
		
		this.cardName = [];
		for (var i=0, k = 0; i<this.icon.length; i++) {
			for(var j=0; j<this.name.length; j++) {
				this.cardName[k++] =  this.icon[i] + " " + this.name[j];
			}
		}
		this.cardName[52] = this.joker[0];
		this.cardName[53] = this.joker[1];
	}
	
	DealCard.prototype.rand = function() {
		var i, j;
		for(var k=0; k<1000; k++) {
			i = Math.ceil(Math.random() * 51);
			j = Math.ceil(Math.random() * 51);
			
			if (i != j) {
				this.permute(i, j);	
			}
		}
	}
	
	DealCard.prototype.permute = function(a, b) {
		this.id[a] = parseInt(this.id[a]) + parseInt(this.id[b]);
		this.id[b] = parseInt(this.id[a]) - parseInt(this.id[b]);
		this.id[a] = parseInt(this.id[a]) - parseInt(this.id[b]);
	}
	
	DealCard.prototype.deal = function() {
		for (var i=0; i<13; i++) {			
			this.roleA.push(this.id[i*4].toString());
			this.roleB.push(this.id[i*4 + 1].toString());
			this.roleC.push(this.id[i*4 + 2].toString());
			this.roleD.push(this.id[i*4 + 3].toString());
		}
		
		this.remnant.push(this.id[52].toString());
		this.remnant.push(this.id[53].toString());
	}
	
	DealCard.prototype.roleName = function(cards) {
		var temp = [];
		for(var id in cards) {
			temp.push( this.cardName[cards[id]] );
		}
		return temp.join(" ");
	}
	
	var dealCard = new DealCard();
	dealCard.rand();
	dealCard.deal();
	console.log("A: " + dealCard.roleA.join(" "));
	console.log("*: " + dealCard.roleName(dealCard.roleA));
	
	console.log("B: " + dealCard.roleB.join(" "));
	console.log("*: " + dealCard.roleName(dealCard.roleB));
	
	console.log("C: " + dealCard.roleC.join(" "));
	console.log("*: " + dealCard.roleName(dealCard.roleC));
	
	console.log("D: " + dealCard.roleD.join(" "));
	console.log("*: " + dealCard.roleName(dealCard.roleD));
	
	console.log("=: " + dealCard.remnant.join(" "));
	console.log("*: " + dealCard.roleName(dealCard.remnant));
	
})(window);
</script>