Multiplayer System - UDP Network

Just testing some TCP and UDP system (only the udp in this repository), most likely used on multiplayer games rather than those Normal backend things, just use gRPC bruh, this is overkill for your services.

tools

• Java Netty 4.1
• Java 1.8
• Java Swing (Game GUI)

How to run

v0.01

• Build the projects & the Jar
• Open 3 separated terminals
• First terminal run java -jar <jarname>.jar server as someone who host the server
• Second terminal run java -jar <jarname>.jar client as player 1
• Third terminal run java -jar <jarname>.jar client as player 2
• Write a Message on Second Terminal, see how It interacts each other to the Third terminal and the other way around.

v0.02

• Build the projects & the jar
• Open 2 Separated terminals
• First terminal run java -jar <jarname>.jar game to start a game
• GUI will appear then click host a server also click join a server
• Second terminal run java -jar <jarname.jar game to start another game
• Second GUI will appear now join a server
• Try Clicking Click me button it will sending messages between each other through terminals with different IP

v0.03

• Build the project & the jar
• Open 2 Separated terminals
• First terminal run java -jar <jarname>.jar game to start a game
• GUI will appear then click host a server also click join a server
• Welcome to the Lobby Panel will appear (choose Start Game to get into the game)
• Now we're in the Game, click the Button and see the message been send to the UDP Network by monitor it through Terminal logs
• Next we need another player of course, open another terminal and do the same thing without Host a server again.
• After you Joined and start the game, Click the button it will send our Action data packets between players.
• Basic things applied, now just do some creativity fellas.

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Notes

• UDP uses DatagramPacket while TCP use simpler way to send messages without packets.
• UDP only need one group Bootstrap while TCP need bossGroup and the workerGroup with ServerBootstrap the differences between this two on Java Netty.
• GameLauncher able to run either Server or Client based on terminal Java Arguments. that's why we used Jars on terminal.