предположим всего картинок 44.)))
<!DOCTYPE html>
<html>
<head>
<title>Untitled</title>
<meta charset="utf-8">
<style type="text/css">
td {
width: 56px;
height: 56px;
background-size: cover;
background-image: var(--url);
}
.game.end {
border-collapse: collapse;
border-spacing: 0px;
}
</style>
</head>
<body>
<br>
<br>
<table class="game">
<tr>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
</table>
<button id="btn">Shuffle</button>
<script>
function imagedata_to_image(imagedata) {
let canvas = document.createElement('canvas');
let ctx = canvas.getContext('2d');
canvas.width = imagedata.width;
canvas.height = imagedata.height;
ctx.putImageData(imagedata, 0, 0);
return canvas.toDataURL();
}
const x = 150; // ширина одного
const y = 150; // высота одного
const w = 2; // сколько в ряду
// картинки, должны быть на том же домене или иметь Access-Control-Allow-Origin
function makeRand(num) {
let usedNumbers = [];
function f() {
if (usedNumbers.length == num) usedNumbers = [];
let i = Math.floor(Math.random() * num) + 1;
return usedNumbers.includes(i) ? f() : (usedNumbers.push(i), i)
}
return f;
}
let totalImg = 44;
let key = makeRand(totalImg);
let length = 4;
let images = length => Array.from({
length
}, _ => `https://loremflickr.com/150/150/girl?random=${key()}`);
/*let images = length => Array.from({
length
}, _ => `https://xyz.ru/images/${('' + key()).padStart(2, "0")}.jpg`);*/
const h = Math.ceil(length / w); // сколько в столбце
const canvas = Object.assign(document.createElement('canvas'), {
width: w * x,
height: h * y
});
document.body.prepend(canvas);
const ctx = canvas.getContext('2d'),
arrSrc = [],
tb = document.querySelector('.game'),
cells = Array.from(tb.querySelectorAll('td'));
let win, temp = [];
function endGame() {
tb.classList.add('end');
}
function exch(event) {
if (win) return;
let td = event.target.closest('.game td');
if (td) {
let cellIndex = td.cellIndex;
let rowIndex = td.closest("tr").rowIndex;
if (temp.length) {
let x = Math.abs(cellIndex - temp[1]);
let y = Math.abs(rowIndex - temp[2]);
if ((x == 0 && y == 1) || (x == 1 && y == 0) || td === temp[0]) {
let url = td.style.getPropertyValue('--url');
td.style.setProperty('--url', temp[0].style.getPropertyValue('--url'));
temp[0].style.setProperty('--url', url);
temp = [];
}
} else {
temp = [td, cellIndex, rowIndex];
}
win = cells.every(({
style
}, i) => {
let url = style.getPropertyValue('--url');
style.setProperty('--url', arrSrc[i]);
let patern = style.getPropertyValue('--url');
style.setProperty('--url', url);
return url === patern
});
if (win) endGame();
}
}
tb.addEventListener("click", exch);
const createImg = () => Promise.all(
images(length).map((src, i) => new Promise(
(onload, onerror) => Object.assign(new Image(), {
crossOrigin: 'anonymous',
src,
onerror,
onload
})
).then(({
target
}) => {
const hPos = Math.floor(i / w);
const wPos = i - (hPos * w);
ctx.drawImage(
target,
wPos * x,
hPos * y,
x,
y
)
}))
).then(() => {
const wh = w * x / tb.rows.length;
arrSrc.length = 0;
win = false;
temp = [];
tb.classList.remove('end');
for (let i = 0; i < tb.rows.length; i++) {
for (let j = 0; j < tb.rows[i].cells.length; j++) {
let imagedata = ctx.getImageData(wh * j, wh * i, wh, wh);
let url = imagedata_to_image(imagedata);
arrSrc.push(`url(${url})`);
}
}
arrSrc.slice(0).sort(_ => Math.random() - .5).forEach((url, i) => cells[i].style.setProperty('--url', url))
});
btn.addEventListener('click', createImg);
createImg()
</script>
</body>
</html>