This project extends a simple game, originally developed over a weekend, where players navigate a miner through a cave. The new extension incorporates a Golang server to enable local multiplayer across a local network and internet multiplayer for global crossplay.

The motivation behind this extension was to test a low-memory-usage backend for a larger upcoming project. Golang was chosen for its efficiency in memory usage and effectiveness in web development, aligning with the goals of creating a scalable and robust multiplayer experience.

The project combines Golang and Python so the networking uses the low level socket interface for both.

• Server: Golang
• Client: Python
• API: Custom built - handles requests for player information, game information and server aliveness.

• Local and Global Multiplayer.
• Player Vs Player (PVP) combat.

To run the server: - You must have Golang installed. Visit Golang Installation for instructions.

To run the game: - You must have Python installed. Visit Python Downloads for instructions.

To access the code: - git clone https://github.com/DiarmuidMalanaphy/EchoesNetworking

Follow these steps to set up the project:

The Game follows a Client-Server Model.

Local Multiplayer - Run the server and play across the same local network.

1. Run the bat or bash script "runServer"

2. The terminal should display a local IP address, this is what you will need to type in to find the lobby later on.

   Global Multiplayer - Run the server and play across the internet.

3. The server computer will have to enable portforwarding to port 8000 on the local machine. There are guides online, here is one https://www.wikihow.com/Set-Up-Port-Forwarding-on-a-Router.

4. Run the bat or bash script "runServer"

5. The terminal should display a public IP address, this is what you will need to type in to find the lobby later on.

1. Ensure a server is running, only one server has to be running.
2. Run the bat or bash script runGame
3. Follow the user interface.

• Manages game and player states, comprehensive API that facilitates server-client communication for a game, involving player and projectile interactions.

• send_initialise_player_request: Initializes a player and returns player data.
• send_update_player_request: Updates a player's data and retrieves a list of enemies.
• send_remove_player_request: Removes a player and returns a confirmation payload.

• send_initialise_game_request: Initializes a game and returns a game ID.

• send_initialise_projectile_request: Initializes a projectile.
• send_update_projectiles_request: Updates multiple projectiles similar to update_player_request.
• send_request_projectiles_request: Requests all projectiles for a player when the user doesn't have any projectiles to send.
• send_remove_projectile_request: Removes projectiles.

• send_validate_server_request: Checks server availability.

• Defines data formats for players, projectiles, and request headers.

• Enumerates various request types, including player updates, game initialization, and projectile management.