113 lines
3.6 KiB
JavaScript
113 lines
3.6 KiB
JavaScript
let app = document.querySelector('#app');
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const DOOR_FILE = 'door.svg';
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let state = [
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{id: "monster1", alt: "A yellow monster that seems like an elephant.", hidden: true},
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{id: "monster2", alt: "A yellow monster with a large head.", hidden: true},
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{id: "monster3", alt: "A green monster that seems like a carnivorous plant.", hidden: true},
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{id: "monster4", alt: "A red monster with four hands.", hidden: true},
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{id: "monster5", alt: "A green monster that seems sad.", hidden: true},
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{id: "monster6", alt: "A green monster with a triangular form.", hidden: true},
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{id: "monster7", alt: "A purple monster with tentacles.", hidden: true},
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{id: "monster8", alt: "A purple monster with no legs.", hidden: true},
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{id: "monster9", alt: "A blue monster that seems like a chicken.", hidden: true},
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{id: "monster10", alt: "A blue monster with two eyes at different heights.", hidden: true},
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{id: "monster11", alt: "A big grey monster.", hidden: true},
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{id: "sock", alt: "A pair of socks.", hidden: true}
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];
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let monsterImgTmpl = function (monster, index) {
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return `
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<img aria-live="polite"
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${index === undefined ? 'class="grid"' : ''}
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src="${monster.hidden ? DOOR_FILE : monster.id+'.svg'}"
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alt="${monster.hidden ? `A closed door, index ${index+1}` : monster.alt}" />
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`
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}
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let monsterBtnTmpl = function (monster, index) {
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return `
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<button aria-live="polite" id="${monster.id}" class="grid" aria-live="polite">
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${monsterImgTmpl(monster, index)}
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</button>
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`
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}
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let gridTmpl = function (monsters, gameover) {
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return `
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<div class="row">
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${monsters.map(function (monster, index) {
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return gameover ? monsterImgTmpl(monster) : monsterBtnTmpl(monster, index);
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}).join('')}
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</div>
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`
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}
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/**
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* Randomly shuffle an array
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* https://stackoverflow.com/a/2450976/1293256
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* @param {Array} array The array to shuffle
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* @return {String} The first item in the shuffled array
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*/
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function shuffle (array) {
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let currentIndex = array.length;
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let temporaryValue, randomIndex;
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// While there remain elements to shuffle...
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while (0 !== currentIndex) {
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// Pick a remaining element...
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randomIndex = Math.floor(Math.random() * currentIndex);
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currentIndex -= 1;
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// And swap it with the current element.
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temporaryValue = array[currentIndex];
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array[currentIndex] = array[randomIndex];
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array[randomIndex] = temporaryValue;
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}
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return array;
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}
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window.addEventListener('click', function (event) {
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if (event.target.matches('button.grid') || event.target.matches('img')) {
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let button = event.target.closest('button');
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let monster = state.find( function (monster) {
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if (monster.id === button.id) {
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return monster
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}
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});
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if (monster.id === 'sock') {
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state = state.map( function (el) { el.hidden = false; return el; });
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app.innerHTML = gridTmpl(state, true);
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let controls = document.querySelector('#controls');
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let tryAgainBtn = document.createElement('button');
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tryAgainBtn.type = 'button';
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tryAgainBtn.innerText = 'Try again!';
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tryAgainBtn.addEventListener('click', function (event) {
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state = state.map(function (el) { el.hidden = true; return el;})
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app.innerHTML = gridTmpl(shuffle(state));
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tryAgainBtn.remove();
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});
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controls.appendChild(tryAgainBtn);
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return
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}
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monster.hidden = false;
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button.outerHTML = monsterImgTmpl(monster);
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}
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});
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app.innerHTML = gridTmpl(shuffle(state));
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