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html5-yahtzee-dice.htm
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<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Yahtzee Dice</title>
<meta name="viewport" content="width=1200, user-scalable=no">
<style type="text/css">
* {
font-family: sans-serif;
}
html, body {
display: flex;
justify-content: center;
align-items: center;
width: 100%;
height: 100%;
margin: 0;
padding: 0;
touch-action: none;
background-color: #000000;
color: #FFFFFF;
}
main {
flex: 1;
display: flex;
flex-direction: column;
justify-content: center;
align-items: center;
}
#dice {
flex: 0 1 auto;
display: flex;
flex-direction: row;
flex-wrap: nowrap;
justify-content: flex-start;
align-items: flex-start;
margin: 3em 0;
}
.die {
position: relative;
width: 128px;
height: 128px;
-webkit-perspective: 1200px;
perspective: 1200px;
margin: 0 2em;
transition: transform 150ms ease-out;
}
.die.selected, #dice.reset > .die {
transform: translateY(-72px);
}
.die > .faces {
position: absolute;
width: 100%;
height: 100%;
-webkit-transform-style: preserve-3d;
transform-style: preserve-3d;
-webkit-transition: -webkit-transform 250ms ease;
transition: transform 250ms ease;
-webkit-transform: translateZ(-64px);
transform: translateZ(-64px);
}
.die[data-value='1'] > .faces {
-webkit-transform: rotateX(0deg);
transform: rotateX(0deg);
}
.die[data-value='2'] > .faces {
-webkit-transform: rotateX(90deg);
transform: rotateX(90deg);
}
.die[data-value='3'] > .faces {
-webkit-transform: rotateY(-90deg);
transform: rotateY(-90deg);
}
.die[data-value='4'] > .faces {
-webkit-transform: rotateY(90deg);
transform: rotateY(90deg);
}
.die[data-value='5'] > .faces {
-webkit-transform: rotateX(-90deg);
transform: rotateX(-90deg);
}
.die[data-value='6'] > .faces {
-webkit-transform: rotateX(-180deg);
transform: rotateX(-180deg);
}
.die > .faces > div {
position: absolute;
width: 128px;
height: 128px;
}
.die > .faces > div:nth-child(1) {
-webkit-transform: rotateX(0deg) translateZ(64px);
transform: rotateX(0deg) translateZ(64px);
}
.die > .faces > div:nth-child(2) {
-webkit-transform: rotateX(-90deg) translateZ(64px);
transform: rotateX(-90deg) translateZ(64px);
}
.die > .faces > div:nth-child(3) {
-webkit-transform: rotateY(90deg) translateZ(64px);
transform: rotateY(90deg) translateZ(64px);
}
.die > .faces > div:nth-child(4) {
-webkit-transform: rotateY(-90deg) translateZ(64px);
transform: rotateY(-90deg) translateZ(64px);
}
.die > .faces > div:nth-child(5) {
-webkit-transform: rotateX(90deg) translateZ(64px);
transform: rotateX(90deg) translateZ(64px);
}
.die > .faces > div:nth-child(6) {
-webkit-transform: rotateX(-180deg) translateZ(64px);
transform: rotateX(-180deg) translateZ(64px);
}
.die > .faces > div > svg {
width: 128px;
height: 128px;
background-color: #FFFFFF;
fill: #000000;
}
#controls {
display: flex;
flex-direction: row;
justify-content: flex-start;
align-items: flex-start;
margin-top: 2em;
}
button {
width: 10em;
margin: 0 1em;
padding: 1em 0;
border: 5px solid #FFFFFF;
background-color: #000000;
color: #FFFFFF;
font-size: 200%;
font-weight: bold;
transition: opacity 250ms ease-out;
}
button:active {
background-color: #FFFFFF;
color: #000000;
}
button:disabled {
opacity: .1;
}
</style>
</head>
<body>
<svg xmlns="http://www.w3.org/2000/svg" style="display:none">
<symbol id="die-face-0" viewBox="0 0 128 128">
<path d=""></path>
</symbol>
<symbol id="die-face-1" viewBox="0 0 128 128">
<circle cx="64" cy="64" r="14"></circle>
</symbol>
<symbol id="die-face-2" viewBox="0 0 128 128">
<circle cx="28" cy="28" r="14"></circle>
<circle cx="100" cy="100" r="14"></circle>
</symbol>
<symbol id="die-face-3" viewBox="0 0 128 128">
<circle cx="28" cy="28" r="14"></circle>
<circle cx="64" cy="64" r="14"></circle>
<circle cx="100" cy="100" r="14"></circle>
</symbol>
<symbol id="die-face-4" viewBox="0 0 128 128">
<circle cx="28" cy="28" r="14"></circle>
<circle cx="100" cy="28" r="14"></circle>
<circle cx="28" cy="100" r="14"></circle>
<circle cx="100" cy="100" r="14"></circle>
</symbol>
<symbol id="die-face-5" viewBox="0 0 128 128">
<circle cx="28" cy="28" r="14"></circle>
<circle cx="100" cy="28" r="14"></circle>
<circle cx="64" cy="64" r="14"></circle>
<circle cx="28" cy="100" r="14"></circle>
<circle cx="100" cy="100" r="14"></circle>
</symbol>
<symbol id="die-face-6" viewBox="0 0 128 128">
<circle cx="28" cy="28" r="14"></circle>
<circle cx="64" cy="28" r="14"></circle>
<circle cx="100" cy="28" r="14"></circle>
<circle cx="28" cy="100" r="14"></circle>
<circle cx="64" cy="100" r="14"></circle>
<circle cx="100" cy="100" r="14"></circle>
</symbol>
</svg>
<main>
<div id="dice">
<div class="die">
<div class="faces">
<div><svg><use xlink:href="#die-face-1"></use></svg></div>
<div><svg><use xlink:href="#die-face-2"></use></svg></div>
<div><svg><use xlink:href="#die-face-3"></use></svg></div>
<div><svg><use xlink:href="#die-face-4"></use></svg></div>
<div><svg><use xlink:href="#die-face-5"></use></svg></div>
<div><svg><use xlink:href="#die-face-6"></use></svg></div>
</div>
</div>
</div>
<div id="controls"><button id="roll-button" onclick="rollDice()">ROLL (0)</button><button onclick="resetTurn()">RESET</button></div>
</main>
<script>
var NUM_DICE = 5;
var NUM_ROLLS = 3;
var dice = new Array(NUM_DICE);
var roll = 0;
init();
function init() {
var template = document.getElementById("dice").children[0].cloneNode(true);
document.getElementById("dice").children[0].remove();
for (var i = 0, ic = dice.length; i < ic; i += 1) {
var element = template.cloneNode(true);
document.getElementById("dice").appendChild(element);
element.dataset.index = i;
element.dataset.value = getRandomDieValue();
element.addEventListener("click", function(e) {
toggleDieSelection(this.dataset.index);
});
dice[i] = {
element: element,
value: element.dataset.value,
isSelected: false
};
}
resetTurn();
}
function rollDice() {
Array.prototype.forEach.call(document.querySelectorAll("#controls button"), function(e) {
e.setAttribute("disabled", true);
});
if (roll === 0) {
document.getElementById("dice").classList.remove("reset");
}
var rolling = setInterval(function () {
for (var i = 0, ic = dice.length; i < ic; i += 1) {
if (!dice[i].isSelected) {
dice[i].element.dataset.value = getRandomDieValue();
}
}
}, 200);
setTimeout(function() {
clearInterval(rolling);
for (var i = 0, ic = dice.length; i < ic; i += 1) {
if (!dice[i].isSelected) {
dice[i].value = getRandomDieValue();
dice[i].element.dataset.value = dice[i].value;
}
}
Array.prototype.forEach.call(document.querySelectorAll("#controls button"), function(e) {
e.removeAttribute("disabled");
});
roll++;
updateRollButton();
}, 1000);
}
function resetTurn() {
roll = 0;
updateRollButton();
for (var i = 0, ic = dice.length; i < ic; i += 1) {
dice[i].isSelected = false;
dice[i].element.classList.remove("selected");
}
document.getElementById("dice").classList.add("reset");
}
function toggleDieSelection(i) {
if (roll > 0) {
dice[i].isSelected = !dice[i].isSelected;
dice[i].element.classList.toggle("selected");
}
}
function updateRollButton() {
var rollButton = document.getElementById("roll-button");
rollButton.innerText = rollButton.innerText.replace(/\d/, (NUM_ROLLS - roll));
if (roll === NUM_ROLLS) {
rollButton.setAttribute("disabled", true);
} else {
rollButton.removeAttribute("disabled");
}
}
function getRandomDieValue() {
return Math.floor((Math.random() * 6) + 1);
}
</script>
</body>
</html>