AoC-2017-day11.js

const input = require("fs").readFileSync("day11-input.txt", "UTF-8");

const map = {
  n: { x: 0, y: 1 },
  ne: { x: 1, y: 1 },
  se: { x: 1, y: -1 },
  s: { x: 0, y: -1 },
  sw: { x: -1, y: -1 },
  nw: { x: -1, y: 1 }
};
let location = { x: 0, y: 0 };
let max = { x: 0, y: 0 };

input.split(",").forEach(direction => {
  location["x"] += map[direction].x;
  location["y"] += map[direction].y;
  max["x"] = Math.max(max.x, location.x);
  max["y"] = Math.max(max.y, location.y);
});

distance = Math.max(Math.abs(location.x), Math.abs(location.y));
max = Math.max(Math.abs(max.x), Math.abs(max.y));

console.log("Part 1:", distance);
console.log("Part 2:", max);