i tried finding holes and using aabbs to check against rectangles. this was very hard though. then i spoiled myself on reddit, you can just check if the lines intersect the rectangles...

i feel like advent of code is based on tricks, and when you don't see them, you've going to have a bad time...

solution: github.com/Rismosch/adv...

i struggled quite a bit today, mostly because i failed to understand the problem. the "nothing happens" line in one of the paragraphs was quite diabolical. i needed 3 hours today, while the other days i never needed more than 1.

anyway, here's the solution: github.com/Rismosch/adv...

solution: github.com/Rismosch/adv...

solution: github.com/Rismosch/adv...

solution: github.com/Rismosch/adv...

solution: github.com/Rismosch/adv...

solution: github.com/Rismosch/adv...

solution: github.com/Rismosch/adv...

solution: github.com/Rismosch/adv...