Created
May 6, 2026 05:46
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| // util functions | |
| const list = (arrLike) => Array.from(arrLike); | |
| const first = (selector) => document.querySelector(selector); | |
| const all = (selector) => list(document.querySelectorAll(selector)); | |
| const child = (el, index = 0) => list(el.children)[index]; | |
| const text = (el, value = null) => { | |
| if (value === null) { | |
| return el && el.textContent; | |
| } | |
| el.textContent = value; | |
| }; | |
| const html = (el, value = null) => { | |
| if (value === null) { | |
| return el && el.innerHTML; | |
| } | |
| el.innerHTML = value; | |
| }; | |
| const on = (el, eventType) => (fn) => el.addEventListener(eventType, fn); | |
| const classes = (el, classObject = null) => { | |
| const list = el.classList; | |
| if (classObject === null) { | |
| return { | |
| has: (className) => list.contains(className), | |
| add: (className) => list.add(className), | |
| rm: (className) => list.remove(className), | |
| toggle: (className, flag) => (list.toggle(className, flag), list), | |
| }; | |
| } | |
| Object.keys(classObject).forEach((key) => { | |
| list.toggle(key, classObject[key]); | |
| }); | |
| }; | |
| // | |
| const interval = (size) => { | |
| return Array(size) | |
| .fill(0) | |
| .map((_, i) => i); | |
| }; | |
| // item | |
| const createItem = (y) => (x) => { | |
| return "<div class='item' data-pos='" + x + ":" + y + "'></div>"; | |
| }; | |
| const joinMap = (items, fn) => { | |
| return items.map(fn).join(""); | |
| }; | |
| const createRow = (y) => { | |
| const items = joinMap(interval(11), createItem(y)); | |
| return "<div class='row'>" + items + "</div>"; | |
| }; | |
| let rows = joinMap(interval(11), createRow); | |
| html(first("main"), rows); | |
| const playerPos = { | |
| x: 1, | |
| y: 1, | |
| }; | |
| const renderLabyrinth = () => { | |
| all(".item").forEach((it) => { | |
| const pos = it.dataset.pos; | |
| classes(it, { | |
| filled: labyrinth.includes(pos), | |
| player: pos === "" + playerPos.x + ":" + playerPos.y, | |
| }); | |
| }); | |
| }; | |
| const move = (dx, dy) => () => { | |
| const newPos = { | |
| x: playerPos.x + dx, | |
| y: playerPos.y + dy, | |
| }; | |
| const pos = "" + newPos.x + ":" + newPos.y; | |
| if (!labyrinth.includes(pos)) { | |
| playerPos.x = newPos.x; | |
| playerPos.y = newPos.y; | |
| renderLabyrinth(); | |
| } | |
| }; | |
| renderLabyrinth(); | |
| [ | |
| { id: "#arrow-right", dir: move(1, 0) }, | |
| { id: "#arrow-left", dir: move(-1, 0) }, | |
| { id: "#arrow-down", dir: move(0, 1) }, | |
| { id: "#arrow-up", dir: move(0, -1) }, | |
| ].forEach(({ id, dir }) => on(first(id), "click")(dir)); |
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