https://www.youtube.com/watch?v=YE8MVNMzpbo https://www.youtube.com/watch?v=YE8MVNMzpbo Here’s a game developer talking about the problem and how they solved i

https://www.youtube.com/watch?v=YE8MVNMzpbo https://www.youtube.com/watch?v=YE8MVNMzpbo Here’s a game developer talking about the problem and how they solved it in The Witness, but note well the limitations he describes. It’s not directly useful if the player can jump, for instance.