80 lines
1.7 KiB
TypeScript
80 lines
1.7 KiB
TypeScript
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const fs = require('fs');
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const input = fs.readFileSync(__dirname + '/input.txt', 'utf8');
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interface Coord {
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x: number,
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y: number,
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}
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interface Bot {
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pos: Coord,
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vel: Coord,
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}
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const bots: Array<Bot> = [];
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input.split("\n").forEach((line: string) => {
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const matches = line.match(/p=(-?\d+),(-?\d+) v=(-?\d+),(-?\d+)/);
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if (!matches) {
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return;
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}
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bots.push({
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pos: { x: parseInt(matches[1]), y: parseInt(matches[2]) },
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vel: { x: parseInt(matches[3]), y: parseInt(matches[4]) },
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});
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});
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const width = 101;
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const height = 103;
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let seconds = 0;
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function printBots() {
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const botRows: Array<Array<string>> = [];
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for (let y = 0; y < height; y++) {
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botRows[y] = [];
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for (let x = 0; x < width; x++) {
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botRows[y][x] = ' ';
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}
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}
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bots.forEach((bot) => {
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botRows[bot.pos.y][bot.pos.x] = '.';
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});
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console.log(botRows.map((r) => r.join('')).join("\n"));
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console.log(seconds);
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}
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printBots();
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function sleep() {
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const promise: Promise<void> = new Promise((resolve) => {
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setTimeout(() => resolve(), 100);
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});
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return promise;
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}
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async function go() {
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while (true) {
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seconds++;
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bots.forEach((bot) => {
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let newX = (bot.pos.x + (bot.vel.x)) % width;
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if (newX < 0) {
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newX = width + newX;
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}
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bot.pos.x = newX;
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let newY = (bot.pos.y + (bot.vel.y)) % height;
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if (newY < 0) {
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newY = height + newY;
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}
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bot.pos.y = newY;
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});
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if ((seconds - 72) % 103 === 0) {
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printBots();
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await sleep();
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}
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}
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}
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go();
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