Add Game of Life Demo

[pauladam94]

No description provided.

[jonasgeiler]

Great work on the demo! 👏🏻
I have found a few minor problems which I hope you can address, otherwise I'd be happy to merge this.
Thank you!

[pauladam94]

• I used only local variables.
• to keep the code under 60 lines (which the main point of demos I think) I remove time management from the code. Your implementation is easy, but I think for such a demo the point is to be as concise as possible !

[jonasgeiler]

Thank you for the changes! Looking great already!

There is one minor little change I would like you to do before I merge this.
I think I have caused a little bit of confusion with the "everything should be local" quote. In Lua, local variables work pretty much the same way that global ones do except that you can't use them when you require() a file. What I'm trying to say is that you don't have to pass the neighbours variable into the count_alive_neighbours function as an argument. Instead, you can just define the neighbours variable above the count_alive_neighbours function and then reference it in the function body and remove the neighbours argument from the function.

[pauladam94]

So I removed the argument neighbourgs of the function count_alive_neighbours. I did it because of the habit of making code more generic but here it has no use for simple demos.

[jonasgeiler]

Perfect! Thank you for your work! 🔥

I will merge this and also release v1.0.0 soon, since I'm pretty happy about the state of the library and feel like it's pretty much ready.
Hope you'll have fun with it!