far-fetch | Modern Fetch API wrapper for simplicity | REST library

I have a bash command, get-modified-perl-files, that returns all the Perl files I have modified in my repository. I would like to use perltidy on all of these files.

I created a bash function to do the job:

Goal: TO SEE IF I CAN MATCH TWO ARRAYS AND RETURN BOOLEAN true OR false

Problem: I want to ask if there is a better solution to matching two arrays for same values, for eg.

...

I am developing a multiplayer game (client-server model) and I am stuck when it comes to scaling its servers.

I understand that most games never even reach 10 000+ players, and I don't think mine will either. Though if I would be very lucky to get that I want to develop the servers so they cannot become a huge obsticle later.

I have searched a lot for a solution to my problem on the internet, checking GDC talks about it and checking other posts on this website, but none of them seems to solve my specific problem.

My current setup is below and all servers are written in C++ using ENet as my network library.

This server handles the actual gameplay of the game and requires quite a lot of CPU and packages being sent between the server and its connected clients. But this dedicated server is hosted by the players themselves, so I don't have to think about scaling it at all.

This server handles the server list, containing all servers currently up.

• All game servers are sending a UDP package to this server every 5 seconds to say they are still alive. This is so the lobby server can keep an updated list of all servers currently online.

• All clients are sending a UDP package to this server when they want to fetch all servers (which is only in the server list screen), and the lobby server sends back a list of all servers. This does not happen that often and the lobby server is limited to send 4 servers per second to a client (and not a huge package containing all servers).

This server handles creating accounts, lost password, logins, friends and their current game status, private messages to other logged in players and player profiles that specifies what in-game items they have.

• All clients are sending a UDP package to this server every 5 seconds to say they are still alive, while also sending what game they are currently in. The server then sends back their friend lists online/offline/in-game statuses. This is so their friends can keep an updated list of which friend is online/offline/in-game.

• It sends messages only with player actions otherwise, like creating an account, logging in, changing/resetting password, adding/removing/ignoring a friend, private messages to friends, etc.
  
  

What I am worried about is that my lobby and login server might not be scalable and that they would have too much traffic on them.

1. Could they in theory be hosted on just a single computer? Or would it be too much traffic for 10 000+ players?

2. If they can be hosted on a single computer, will the servers still not have issues for people that live far away?
Would it be better to have the lobby and login servers per region of the world in that case? The bad thing about that is that the players would not be able to see servers in the US if they live in Europe, and that their account and items would not exist on the other servers.

3. Might be far-fetched, but if I would rewrite both servers to instead be on a website with a database and make the client/game server do web requests instead (such as HTTPS or calling a php with specific headers), would it help in solving my problems somehow?

I don't want to use different python packages like pickle. I also don't want to use multiple databases.

So, how do I add a list or a tuple into a column of a database?

I had a theory of adding a string that would be like '(val1, val2, val3)' and then use exec to put it into a variable but that is too far-fetched and there is definitely a better and more efficient way of doing this.

EDIT: I'll add some more information on what I'm looking for.

I want to get (and add) lists with this type of info:

{'pet':'name','type':'breed/species_of_pet', 'img':img_url, 'hunger':'100'} I want this dict to be in the pets column. Each pet can have many owners (many-to-many relationship)

Alright, I know there's a lot of speculation online about how this should be done, but I'm not happy about most of them or they are outdated :)

This is a simplified representation of my setup:

I am teaching a software development class and I am having students submit projects to GitHub. One of my students submitted their final project and I found another repo on GitHub from 9 months earlier that contained almost identical code. Seems like a cut and dry case of plagiarism right? The student is completely adamant though that they did not copy even though they acknowledge the similarities of the repository. In order to entertain all (most) possibilities, I am thinking through how the student could be telling the truth. My only (silly) option is that my student has a nemesis who copied their project and spoofed the creation date of the repo to get my student in trouble for plagiarism. Obviously that's very far-fetched from a real-life perspective. But I'm curious now if it's possible from a technical perspective?

I know GitHub allows individual commit timestamps to be spoofed but I'm looking at the project creation date (through the GH API) which seems to be a separate concept.

Or is there another more plausible way that my student could be telling the truth that I'm just overlooking?

I would like to take make a matrix that has all its entries as a function of some variable x. Hence B(x) would give N x N output ideally in a fast manner. This is a simple task in fact if you are willing to type out the matrix with functions as entries. As an example:

I just noticed in my symfony project that if I have an entity that has a non-nullable field, and that in the formType I make sure that the field is required.

So in the rendering of the page, if I do "inspect the element" and I manually remove the "required" attribute from the field, well I can validate, and in this case I will have a doctrinal error instead of staying on the form page with a simple validation error

SQLSTATE[23000]: Integrity constraint violation: 1048 Le champ 'titre' ne peut être vide (null)

However, I use {{form_row(form.field)}} in my Twig file, so I should have the form_error too.

Does this mean that for all my entities, I have to add @Assert\NotNull each time to avoid this problem? It seems far-fetched even if it is not managed automatically