A modern programming language that makes developers happier.

kotlinlang

Blog:

<https://todd.ginsberg.com/post/advent-of-code/2019/day11/>

Code:

<https://github.com/tginsberg/advent-2019-kotlin/blob/master/src/main/kotlin/com/ginsberg/advent2019/Day11.kt>

<https://github.com/tginsberg/advent-2019-kotlin/blob/master/src/main/kotlin/com/ginsberg/advent2019/ScreenDirection.kt>

I stubbornly stuck with non-screen coordinates, and started my robot off facing south. Because all turns were relative (right, left), not absolute (east, west), nothing else needed to change apart from flipping x and y values when printing for part 2 (flipping x and y is equivalent to performing a 180 degree rotation about the origin).

Still a bit grim but tolerable (for me, in this case)