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game.html
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<!doctype html>
<html>
<head>
<title>fencing match</title>
<meta name="viewport" content="width=device-width">
<link href="/css" rel="stylesheet">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.slim.min.js"></script>
<script src="/socket.io/socket.io.js"></script>
<style>
html {
height: 100%;
}
body {
align-items: start;
display: flex;
flex-wrap: wrap;
height: 100%;
justify-content: center;
min-width: 750px;
}
header, footer {
font-size: 24px;
margin: 15px;
}
header {
text-align: left;
}
#progress {
float: right;
}
#keyboard {
height: 0;
opacity: 0.01;
position: absolute;
width: 0;
}
table {
border-collapse: collapse;
margin: 0 15px;
}
td {
background-color: currentColor;
border: 1px solid black;
box-shadow: 0 0 0 1px black;
position: relative;
will-change: transform;
}
td sup {
font-size: 10px;
left: 0;
position: absolute;
top: -2px;
}
td div {
font-family: monospace;
font-size: 24px;
height: 30px;
line-height: 30px;
text-align: center;
width: 30px;
}
td { color: #666; }
td sup { color: #333; }
td div { color: #000; }
.blank { color: #fff; }
.blank div { opacity: 0.5; }
.wall { color: #000; }
#reveal {
font-size: inherit;
padding: 0 10px;
}
abbr {
border: 1px solid currentColor;
display: inline-block;
padding: 0 9px;
position: relative;
}
#slider {
width: 100%;
}
svg {
bottom: 0;
display: block;
height: 80%;
left: 0;
margin: 10%;
opacity: 0.25;
position: absolute;
transform: matrix(0, -1, -1, 0, 0, 0);
width: 80%;
}
circle {
animation-duration: inherit;
animation-fill-mode: both;
animation-name: lockout;
animation-timing-function: linear;
fill: none;
stroke: black;
stroke-width: 200;
}
@keyframes lockout {
from { stroke-dasharray: 628 628; }
to { stroke-dasharray: 0 628; }
}
aside {
display: flex;
max-height: 100%;
text-align: left;
}
ol {
margin: 15px;
overflow: auto;
padding-bottom: 10px;
padding-top: 10px;
padding-right: 10px;
position: relative;
width: 250px;
}
ol:before {
content: attr(id);
display: block;
font-weight: bold;
padding-bottom: 10px;
}
li { opacity: 0.5; }
.done { opacity: 0.5; }
.open { opacity: 1; }
[data-sel=clue] { background-color: #ff0; }
[data-sel=cross] { background-color: #ffb; }
[data-sel=cell] {
border: none;
display: block;
outline: 1.5px solid black;
transform: scale(1.2);
z-index: 1;
}
[data-sel=light] {
background-image: repeating-linear-gradient(
45deg, rgba(0, 0, 0, 0.15) 0% 5%, transparent 5% 12.5%);
background-origin: border-box;
}
[data-dir]:before, [data-dir]:after {
position: absolute;
background: inherit;
width: 10px;
height: 10px;
border: 2.5px none black;
}
[data-dir~=l]:before {
content: "";
left: -5px;
top: 50%;
transform-origin: top left;
transform: scale(0.5, 1) rotate(-45deg);
border-style: solid none none solid;
}
[data-dir~=r]:after {
content: "";
right: -5px;
bottom: 50%;
transform-origin: bottom right;
transform: scale(0.5, 1) rotate(-45deg);
border-style: none solid solid none;
}
[data-dir~=u]:before {
content: "";
top: -5px;
right: 50%;
transform-origin: top right;
transform: scale(1, 0.5) rotate(-45deg);
border-style: solid solid none none;
}
[data-dir~=d]:after {
content: "";
bottom: -5px;
left: 50%;
transform-origin: bottom left;
transform: scale(1, 0.5) rotate(-45deg);
border-style: none none solid solid;
}
form {
display: flex;
}
#message {
flex-grow: 1;
}
#dialogue {
max-height: 120px;
overflow: auto;
}
#dialogue div {
text-align: left;
}
label {
cursor: help;
text-decoration: underline;
}
:checked ~ dl {
display: none;
}
</style>
</head>
<body>
<aside class="bar">
<ol id="across"></ol>
<ol id="down"></ol>
</aside>
<main>
<header>
<span id="score"></span>
<span id="total"></span>
<div id="progress"></div>
<input type="text" id="keyboard" autocomplete="off" spellcheck="false">
</header>
<table></table>
<footer id="hints" style="display: none">
<button id="reveal">reveal square</button>
× <abbr></abbr>
</footer>
<footer id="log" style="display: none">
<input type="range" min="0" max="0" id="slider">
</footer>
<section>
<h3><label for="toggle">how to play</label></h3>
<input type="checkbox" checked id="toggle" style="display: none">
<dl>
<dt>game</dt><dd>
In this event, you'll <i>cross swords</i> with another team in a race
to fill a crossword grid!
</dd>
<dt>visibility</dt><dd>
You can see your starting corner, plus any clue that you have a
letter in. You'll have to enter letters correctly to see more of
the grid.
</dd>
<dt>navigating</dt><dd>
Click in the grid or the list of clues to move around the grid. Type
letters to guess (the cursor will automatically advance along the
current clue).
</dd>
<dt>guessing</dt><dd>
A correct guess claims that square for your color. An incorrect guess
locks the square out for a little while. You can guess again after
that, or the other team might get it in the meantime!
</dd>
<dt>hints</dt><dd>
Click "reveal square" with a square selected to instantly claim it.
Hints regenerate after 30 seconds, so don't be afraid to use them.
</dd>
<dt>victory</dt><dd>
You can see your current score and a timer above the grid. If you
claim a majority of the grid, or have more squares than your opponent
when the timer runs out, you win!
</dd>
<dt>replay</dt><dd>
After the game ends, you can use the slider at the bottom to replay
all the moves.
</dd>
</dl>
</section>
<section>
<div id="players"></div>
<form>
<input id="message" autocomplete="off" spellcheck="false">
<button>chat</button>
</form>
<div id="dialogue"></div>
</section>
</main>
<svg viewBox="0 0 400 400">
<circle cx="200" cy="200" r="100"></circle>
</svg>
<script>
const svg = $('svg').remove();
let isDown = false;
let game;
function scrollClue(clue) {
const [li] = clue;
const [ol] = clue.parent();
if (li.offsetTop < ol.scrollTop ||
li.offsetTop + li.offsetHeight > ol.scrollTop + ol.clientHeight) {
ol.scrollTop = li.offsetTop + (li.offsetHeight - ol.clientHeight) / 2;
}
}
function selectClue(id) {
const {status, dir, cells} = game.clues[id];
if (!status) return false;
if (isDown != (dir == 'down')) {
scrollClue($(`#clue_${id}`).attr('data-sel', 'cross'));
return false;
}
scrollClue($(`#clue_${id}`).attr('data-sel', 'clue'));
for (const [y, x] of cells) {
$(`#cell_${y}_${x}`).attr('data-sel', 'light');
}
return true;
}
function selectCell(y, x) {
if (!checkCell(y, x)) return;
const {clues} = game.cells[y][x];
$('[data-sel]').attr('data-sel', null);
$('[data-dir]').attr('data-dir', null);
if (!clues.map(selectClue).some(n => n)) {
isDown = !isDown;
clues.forEach(selectClue);
}
const dirs = [];
if (isDown) {
if (checkCell(y - 1, x)) dirs.push('u');
if (checkCell(y + 1, x)) dirs.push('d');
} else {
if (checkCell(y, x - 1)) dirs.push('l');
if (checkCell(y, x + 1)) dirs.push('r');
}
$(`#cell_${y}_${x}`).attr({'data-sel': 'cell', 'data-dir': dirs.join(' ')});
$('#keyboard').focus();
checkHints();
}
function checkCell(y, x) {
if (!game.cells[y] || !game.cells[y][x]) return false;
const {status} = game.cells[y][x];
return status && status != 'wall';
}
function handleKey(evt) {
const [td] = $('[data-sel=cell]');
if (!td || evt.altKey || evt.ctrlKey || evt.metakey) return;
let [_, y, x] = td.id.split('_').map(Number);
const key = evt.key || evt.originalEvent.data;
if (/^[a-z]$/i.test(key)) {
const {status, guess, timeout} = game.cells[y][x];
if (status == 'blank') {
if (timeout && timeout > Date.now()) return;
socket.emit('guess', {y, x, key});
} else if (guess != key.toUpperCase()) {
return;
}
const [_, id] = $('[data-sel=clue]').attr('id').split('_');
let ok = false;
for (const [yy, xx] of [...game.clues[id].cells, ...game.clues[id].cells]) {
if (ok && game.cells[yy][xx].status == 'blank') return selectCell(yy, xx);
if (y == yy && x == xx) ok = true;
}
return;
}
if (document.activeElement == input) return;
switch (evt.key) {
case 'ArrowUp': isDown = true; if (checkCell(y - 1, x)) --y; break;
case 'ArrowDown': isDown = true; if (checkCell(y + 1, x)) ++y; break;
case 'ArrowLeft': isDown = false; if (checkCell(y, x - 1)) --x; break;
case 'ArrowRight': isDown = false; if (checkCell(y, x + 1)) ++x; break;
default: return;
}
selectCell(y, x);
evt.preventDefault();
}
$(document).on('mousedown', 'td', evt => {
const [_, y, x] = evt.currentTarget.id.split('_').map(Number);
if ($(`#cell_${y}_${x}[data-sel=cell]`).length) isDown = !isDown;
selectCell(y, x);
evt.preventDefault();
}).on('mousedown', 'li', evt => {
const [_, id] = evt.currentTarget.id.split('_');
const {dir, cells} = game.clues[id];
if (!cells || !cells.length) return;
evt.preventDefault();
isDown = dir == 'down';
for (const [y, x] of cells) {
if ($(`#cell_${y}_${x}[data-sel=cell]`).length) return selectCell(y, x);
}
for (const [y, x] of cells) {
if (game.cells[y][x].status == 'blank') return selectCell(y, x);
}
selectCell(...cells[0]);
}).on('keydown', evt => {
evt.keyCode == 229 ? $(document).one('textInput', handleKey) : handleKey(evt);
});
const [button] = $('#reveal').click(() => {
const data = checkHints();
if (data) socket.emit('guess', data);
button.blur();
});
const [input] = $('#slider').on('input', () => {
game = constructGame(+input.value);
game.cells.forEach((row, y) => row.forEach((_, x) => makeCell(y, x)));
game.clues.forEach((_, id) => makeClue(id));
makeScore();
});
function constructGame(index) {
if (index < 0) {
const {log, total, start, time, winner, names} = game;
const score = {};
for (const side in game.score) score[side] = 0;
return {
cells: game.cells.map(row => row.map(_ => ({}))),
clues: game.clues.map(({dir, index}) => ({dir, index})),
log, score, total, start, time, winner, names,
};
}
const entry = game.log[index--];
if (entry.game) return entry.game;
const {cells, clues, log, score, total, start, time, winner, names} =
constructGame(index);
entry.game = {
cells: JSON.parse(JSON.stringify(cells)),
clues: JSON.parse(JSON.stringify(clues)),
log, score, total, start, time, winner, names,
};
for (const {type, hints, score, y, x, cell, id, clue} of entry.events) {
switch (type) {
case 'score': entry.game.score = score; break;
case 'cell': entry.game.cells[y][x] = cell; break;
case 'clue': entry.game.clues[id] = clue; break;
}
}
return entry.game;
}
function makeTimeout(target, until, callback) {
if (!until) return;
const remaining = until - Date.now();
if (remaining > 0) {
svg.clone().css('animation-duration', `${remaining}ms`).appendTo(target);
}
if (callback) setTimeout(callback, remaining);
}
function makeCell(y, x) {
const {status, index, guess, timeout} = game.cells[y][x];
const td = $(`#cell_${y}_${x}`).attr('class', status || '');
td.find('sup').text(index || '');
td.find('div').text(guess || '');
td.find('svg').remove();
makeTimeout(td, timeout, checkHints);
}
function makeClue(id) {
const {status, text} = game.clues[id];
$(`#clue_${id}`).attr('class', status || '').text(text || '');
}
function makeLog(events) {
if (!game.log) return $('#log').hide();
$('#log').show();
if (events) game.log.push({time: Date.now(), events});
const end = !events || input.max == input.value;
input.max = game.log.length - 1;
if (end) $(input).val(input.max).trigger('input');
}
function makeHints() {
if (!game.hints) return $('#hints').hide();
$('#hints').show();
const {count, next} = game.hints;
checkHints();
makeTimeout($('abbr').text(count), next, () => socket.emit('hints'));
}
function makeScore() {
const score = $('#score').empty();
for (const side in game.score) {
score.append($('<span>').attr('class', side).text(game.score[side]), ' / ');
}
}
function checkHints() {
if (game.hints && game.hints.count > 0) {
const [td] = $('[data-sel=cell]');
if (td) {
let [_, y, x] = td.id.split('_').map(Number);
const {status, timeout} = game.cells[y][x];
if (status == 'blank' && !(timeout && timeout > Date.now())) {
button.disabled = false;
return {y, x};
}
}
}
button.disabled = true;
}
const socket = io.connect({query: 'path=' + location.pathname});
let timer = null;
socket.on('state', data => {
game = data;
const table = $('table').empty();
game.cells.forEach((row, y) => {
const tr = $('<tr>').appendTo(table);
row.forEach((cell, x) => {
$('<td>').attr('id', `cell_${y}_${x}`).append($('<sup>'), $('<div>'))
.appendTo(tr);
makeCell(y, x);
});
});
$('ol').empty();
game.clues.forEach((clue, id) => {
$('<li>').attr('id', `clue_${id}`).attr('value', clue.index)
.appendTo(`#${clue.dir}`);
makeClue(id);
});
makeLog();
makeHints();
makeScore();
$('#total').text(game.total);
const players = $('#players').empty();
Object.entries(game.names).forEach(([side, name], i) => {
if (i) players.append(' vs ');
$('<span>').attr('class', side).text(name).appendTo(players);
});
clearInterval(timer);
$('#progress').empty();
if (game.winner) {
$('#progress').append(
$('<span>').attr('class', game.winner).text(game.winner), ' wins!');
} else if (game.start) {
timer = setInterval(() => {
const diff = game.start + game.time - new Date;
if (diff < 0) {
clearInterval(timer);
socket.emit('guess', {});
alert("Time's up!");
return;
}
let time = Math.floor(diff / 1000);
let parts = [time % 60, (time /= 60) % 60, (time /= 60) % 24, time / 24];
parts = parts.reverse().map(part => '' + Math.floor(part));
while (parts[0] == '0') parts.shift();
parts = parts.map((part, i) => i && part.length == 1 ? '0' + part : part);
$('#progress').text(parts.join(':'));
}, 250);
}
});
socket.on('update', events => {
if (game.log) return makeLog(events);
for (const {type, hints, score, y, x, cell, id, clue} of events) {
switch (type) {
case 'hints': game.hints = hints; makeHints(); break;
case 'score': game.score = score; makeScore(); break;
case 'cell': game.cells[y][x] = cell; makeCell(y, x); break;
case 'clue': game.clues[id] = clue; makeClue(id); break;
}
}
checkHints();
});
$('form').submit(evt => {
socket.emit('chat', $('#message').val());
$('#message').val('');
evt.preventDefault();
return false;
}).on('keydown', evt => evt.stopPropagation());
socket.on('chat', ({side, name, message}) => {
const [box] = $('#dialogue');
const scroll = box.scrollTop + box.clientHeight == box.scrollHeight;
$('<div>').append($('<span>').addClass(side).text(name), ': ', message)
.appendTo(box);
if (scroll) box.scrollTop = box.scrollHeight;
});
</script>
</body>
</html>