app.js

/*
GAME RULES:

- The game has 2 players, playing in rounds
- In each turn, a player rolls a dice as many times as he whishes. Each result get added to his ROUND score
- BUT, if the player rolls a 1, all his ROUND score gets lost. After that, it's the next player's turn
- The player can choose to 'Hold', which means that his ROUND score gets added to his GLBAL score. After that, it's the next player's turn
- The first player to reach 100 points on GLOBAL score wins the game

*/
var scores, roundScore, activePlayer;
scores = [0, 0];
roundScore = 0;
activePlayer = 0;

document.querySelector('.dice').style.display = "none";

document.getElementById('score-0').textContent = '0';
document.getElementById('score-1').textContent = '0';
document.getElementById('current-0').textContent = '0';
document.getElementById('current-1').textContent = '0';

document.querySelector('.btn-roll').addEventListener('click', function () {
  var dice = Math.floor(Math.random() * 6) + 1;
  var diceDom = document.querySelector('.dice');
  diceDom.style.display = "block";
  diceDom.src = 'dice-' + dice + ".png";

  if (dice !== 1) {
    roundScore += dice
    document.querySelector('#current-' + activePlayer).textContent = roundScore;
  }
  else {
    nextPlayer();
  }
});

document.querySelector('.btn-hold').addEventListener('click', function () {
  scores[activePlayer] += roundScore;
  document.querySelector('#score-' + activePlayer).textContent = scores[activePlayer];

  if (scores[activePlayer] >= 100) {
    document.querySelector('#name-' + activePlayer).textContent = "WINNER !"
    document.querySelector('.dice').style.display = "none";
    document.querySelector('.player-' + activePlayer + '-panel').classList.add('winner')
    document.querySelector('.player-' + activePlayer + '-panel').classList.remove('active')
  } else {
    nextPlayer();
  }
});

function nextPlayer() {
  activePlayer === 0 ? activePlayer = 1 : activePlayer = 0;
  roundScore = 0;

  document.getElementById('current-0').textContent = "0";
  document.getElementById('current-1').textContent = "0";

  document.querySelector('.player-0-panel').classList.toggle('active')
  document.querySelector('.player-1-panel').classList.toggle('active')

  document.querySelector('.dice').style.display = "none";
}

// document.querySelector('#current-' + activePlayer).textContent = dice;