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	epriestley
	Aug 8 2019, 7:05 PM

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raw.txt
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	let x = parseInt(GRID_SIZE/2);
	let y = parseInt(GRID_SIZE/2);

	function jumpTo(instructions, px, py) {
	moveRelative(instructions, px - x, py - y);
	}

	function moveRelative(instructions, rx, ry) {
	instructions.push({moveX: rx, moveY: ry});
	x = x + rx;
	y = y + ry;
	}

	function crawlTo(instructions, px, py) {
	while (px < x) {
	moveRelative(instructions, -1, 0);
	}
	while (px > x) {
	moveRelative(instructions, +1, 0);
	}
	while (py < y) {
	moveRelative(instructions, 0, -1);
	}
	while (py > y) {
	moveRelative(instructions, 0, +1);
	}
	}

	(() => {
	const GRID_SIZE = 31;
	const instructions = [];

	for (var ring = 0; ring <= 15; ring++) {
	var sx = ring;
	var sy = ring;
	var tx = (GRID_SIZE - ring) - 1;
	var ty = (GRID_SIZE - ring) - 1;

	jumpTo(instructions, sx, sy);
	crawlTo(instructions, tx, sy);
	crawlTo(instructions, tx, ty);
	crawlTo(instructions, sx, ty);
	crawlTo(instructions, sx, sy + 1);
	}

	return instructions;
	})();