Multiplayer Tic Tac Toe

Well it seems I never did a post on my Tic Tac Toe game so now would appear to be as good as time as any to do a little write up about it, explain the reason behind it and some of the things I ran into while creating Multiplayer Tic Tac Toe!

TGR Multiplayer Tic Tac Toe

I originally picked Tic Tac Toe as my base game as I dove head first into multiplayer coding. Its just about as simple as a game can get and wouldn’t require too much game code as opposed to the multiplayer code required to get things working across networks and devices. During this time I spent months researching all the different architectures, methods and solutions people were using out there from third party addons like Photon, Node.JS, Mirror, Litenet, etc to the integrated Unity UNet solution. I did as much research on each of them as any sane person could tolerate, looked at examples, tested demos and attempted to write basic chat programs with some. In the end I just chose to use Unitys UNet. It was easy to understand and easy to implement. Of course this was after a lot of trial and error.

The main basis for multiplayer is that you have multiple devices sending and receiving messages to each other. The base for my network was how these devices would interpret the messages and act accordingly. One of the first hurdles I ran into was while looking into peer to peer networking. There are quite a lot of issues with this structure which can grow depending on which devices your setting up the network on. With mobile phones, based on what I remember (This was over a year ago (I think)), mobile phones have a tough time hosting games while computers have a hard time punching through the router to host games and allow people outside the network to join. While some of the available network solutions had answers for these kinds of situations, I opted for a simpler remedy, its a called a relay server.

Most big multiplayer networks like Steam for example, will push players onto their relay servers when they can’t get around router issues, from what I read anyways. This was the perfect answer for my situation, especially since I was looking at creating simple turn based card or board games. The downside to this, for me anyways, is that it required a hosted server that I could use to run the relay server on, outside of my home network to make it easier for people to play against each other.

Ultimately I succeeded in writing my relay server that could handle people hosting tic tac toe games or joining tic tac toe games. I ran into a few issues with allowing people to log in in order to save stats, a logged in player playing against a non logged in player, registering players and quite a few other things that needed ironing out. In the end, I was very happy with the overall structure of my multiplayer network.

A bit after I finished the Multiplayer Tic Tac Toe game and my Relay Server, quite a bit after actually, unity decided to trash the UNet and make it obsolete. I said of course they did, thats just because I decided to use it! They are promising a new type of integrated networking system but after they trashed what they already had which I used, why would I use another network system they create? What if they decided to trash that one in the end too?

Here I was again, looking over all the different networking systems I could use. This meant having to port my existing Relay Server and Multiplayer Tic Tac Toe game over to the new library. In the end I decided to go with LiteNetLib due to how light weight it is, how easy it is to understand and how quick it was to implement. Of course my completion of the port is still a work in progress, but once I can get back to being focused on it, I will update this post!

Thanks for reading and if you have any questions, please leave a comment below!

The Hearts Card Game Finished!

Its been quite a while but after taking a little break from working on my role playing game, I decided to work on my Hearts Card game. I mainly made this for my wifey who loves to play the game. I originally made this game in Java and Monkey X which helped me figure out how to create some of the methods required to complete the game in Unity.

Hearts Card Game 1

The main thing that took me so long was figuring out how to use Unity Game Objects for everything in the game. From the cards, the deck to the players, they are all represented in the game as game objects which allows for some really nice object manipulation and keeping track of whats going on in the game. I wrote a few scripts to help manage the objects in game like a card script for assigning and tracking specific card variables and positions. I also wrote a deck script for keeping track of the status of the deck, handles the shuffling and the dealing of the cards. The player script keeps track of each player, their specific variables like scores and names along with positions and avatars. The last script I wrote was the main script that handles the actual game play and puts all the individual game objects to work along with keeping track of them and their states.

Hearts Card Game 2

I originally used a deck of cards I found online when I originally wrote the Java and MonkeyX version but after using it for my Unity version, I noticed how low of a resolution they were so I had to get a new deck. I found a public domain deck at Byron Knolls Blog. I was able to use this deck as a base and do a few customization’s to it. The cards are a higher resolution and look pretty good. I just wanted to add an inner rectangle on each card and make a custom card back with The Game Realm Logo.

One of the main issues I had was getting the game to work properly in a web browser using the Unity WebGL build. The game wouldn’t scale properly no matter what and if the user changed the browser window size, the game wouldn’t scale with the new window size. I finally got the settings correct inside the Unity Editor using screen overlay and scale with screen size on the canvas. I then had to use the A Better Template unity package from Greggman which allowed the game to scale properly with each window size. The problem was though that if the user resized the window after starting the game, the scale would be off. I fixed this by forcing a page reload if the browser window gets resized.

Basically, overall, it took me about a month and a half to get the game completed. Get some bugs worked out and get it on the website. I will be looking at adding some multiplayer after a bit. I will be working on a few more single player games first, like The Dice Game which is next in line.

I appreciate you taking a look at the game and reading the post! If you have any questions, please feel free to ask or comment below!

Thank you!