I understand why you couldn't implement it, but with that knowledge you can improve on this game and figure out its limits! but also you should probably see this for some neat ideas: https://optozorax.github.io/portal/index2.html (careful its kinda leggy) which is a great source! Because it shows a portal going through its output, it could help if you don't know how a certain idea is supposed to work. but I don't want to push you at all on all these ideas, I'm just really into this kind of stuff!