war

war.js

var suites = ['\u2660', '\u2665', '\u2666', '\u2663'];
var numbers =  ['2','3','4','5','6','7','8','9','10','J','Q','K','A'];
 
var buildDeck = function(){
  var deck = [];
  for (var suite in suites)
    for (var number in numbers)
      deck.push(numbers[number] + suites[suite]);
  return deck;
};
 
var shuffle = function(deck){
  var i = deck.length, j, temp;
    if ( i == 0 ) return;
    while ( --i ) {
        j = Math.floor( Math.random() * ( i + 1 ) );
        temp = deck[i];
        deck[i] = deck[j];
        deck[j] = temp;
    }
  return deck;
};


var deck = shuffle(buildDeck());
 
var player1 = deck.splice(0, deck.length/2);
var player2 = deck.splice(0, deck.length);
var round = 0; 
 

var getCard = function(hand){
  return shuffle(hand).shift()
}

var game = setInterval(function(){
  console.log('Round ' + round++ + ': Player1 ' + player1.length + ' - Player2 ' + player2.length);  
  
  var card1 = getCard(player1);
  var card2 = getCard(player2);
  
  console.log(card1 + ' vs. ' + card2);
  
  if (player1.length === 0 || player2.length === 0){
    console.log('Winner: ' + (player1.length === 0) ? 'Player2' : 'Player1');
    clearInterval(game);
    
  }else{
  
    battle(card1, card2);
  
  }
  
   //clearTimeout(game)
  
}, 1000)
 
var battle = function(card1, card2, warCards){
  
  var card1Value = getCardValue(card1.substr(0, card1.length - 1));
  var card2Value = getCardValue(card2.substr(0, card2.length - 1));
    
  if (card1Value === card2Value){
     console.log('War!');
     battle(getCard(player1), getCard(player2), (warCards || 0) + 3);
        
  }else if (card1Value > card2Value){  
    player1.push(card1)
    player1.push(card2);
    if (warCards)
      player1 = player1.concat(player2.splice(0, warCards))
      
  }else if (card2Value > card1Value){
    player2.push(card1)
    player2.push(card2);
    if (warCards)
      player2 = player2.concat(player1.splice(0, warCards))    
    
  } 
  
  
}  

var getCardValue = function(card){
  
  switch(card){
    case "J":
      return 11
      break;
    case "Q":
      return 12;
      break;
    case "K":
      return 13;
      break;
    case "A":
      return 14;
      break;
    default:
      return parseInt(card);
      break;
  }
}