# marto993/snake-multiplayer architecture

> Architecture diagram of the GitHub repository marto993/snake-multiplayer, generated by GitDiagram from its file tree, README and a sample of source files (last updated 2026-09-26). It is an AI-made overview: check details against the source.

- Interactive diagram: https://gitdiagram.com/marto993/snake-multiplayer
- Repository: https://github.com/marto993/snake-multiplayer

## Overview

Snake Multiplayer is a browser-based, real-time room game. Players create or join rooms, play synchronized rounds with combat and consumables, and can spectate or review persistent profiles and rankings. The README documents these capabilities; the sampled excerpts show server-side room and profile handling, client input and state updates, and shared Snake behavior. Since the server excerpt is partial, the graph omits uncertain wiring for some documented features; several responsibilities are represented by the same source file.

Main entry points: [`index.js`](https://github.com/marto993/snake-multiplayer/blob/main/index.js) (Socket event server), [`public/SnakeGame.js`](https://github.com/marto993/snake-multiplayer/blob/main/public/SnakeGame.js) (Client controller), [`public/index.html`](https://github.com/marto993/snake-multiplayer/blob/main/public/index.html) (Game interface), [`public/snakeClass.js`](https://github.com/marto993/snake-multiplayer/blob/main/public/snakeClass.js) (Client Snake)

## Diagram (Mermaid)

```mermaid
flowchart TD

subgraph group_server["Authoritative server"]
  node_socket_server["Socket event server<br/>[index.js]"]
  node_room_manager["Room lifecycle<br/>[index.js]"]
  node_rounds["Rounds and scoring<br/>[index.js]"]
  node_sync["Game state sync<br/>[index.js]"]
  node_social["Invites and spectators<br/>[index.js]"]
  node_online["Online players<br/>[index.js]"]
end

subgraph group_game["Game mechanics"]
  node_client_snake["Client Snake<br/>[snakeClass.js]"]
  node_combat["Projectiles<br/>[index.js]"]
  node_consumables["Consumables<br/>[index.js]"]
  node_snake_logic["Snake movement<br/>[snakeClass.js]"]
end

subgraph group_client["Browser client"]
  node_browser["Game interface<br/>[index.html]"]
  node_client_app["Client controller<br/>[SnakeGame.js]"]
  node_render["Canvas rendering<br/>[SnakeGame.js]"]
  node_client_social["Rooms and invites UI<br/>[SnakeGame.js]"]
end

subgraph group_persistence["Player records"]
  node_profiles["Profile statistics<br/>[index.js]"]
  node_rankings["Global rankings<br/>[index.js]"]
  node_sqlite[("SQLite records")]
end

node_player(("Player"))
node_socketio["Socket.IO transport"]

node_player -->|"uses"| node_browser
node_browser -->|"loads"| node_client_app
node_client_app -->|"sends events"| node_socketio
node_socketio -->|"dispatches events"| node_socket_server
node_socket_server -->|"emits updates"| node_socketio
node_socketio -->|"delivers updates"| node_client_app
node_client_app -->|"updates prediction"| node_client_snake
node_client_app -->|"draws state"| node_render
node_client_app -->|"updates UI"| node_client_social
node_socket_server -->|"handles room events"| node_room_manager
node_socket_server -->|"resolves profiles"| node_profiles
node_room_manager -->|"manages rounds"| node_rounds
node_room_manager -->|"broadcasts state"| node_sync
node_rounds -->|"advances snakes"| node_snake_logic
node_rounds -->|"handles attacks"| node_combat
node_rounds -->|"updates items"| node_consumables
node_socket_server -->|"handles spectator and invite events"| node_social
node_socket_server -->|"serves online list"| node_online
node_profiles -->|"reads and writes"| node_sqlite
node_rankings -->|"reads records"| node_sqlite
node_socket_server -->|"serves rankings"| node_rankings

click node_browser "https://github.com/marto993/snake-multiplayer/blob/main/public/index.html"
click node_client_app "https://github.com/marto993/snake-multiplayer/blob/main/public/SnakeGame.js"
click node_client_snake "https://github.com/marto993/snake-multiplayer/blob/main/public/snakeClass.js"
click node_render "https://github.com/marto993/snake-multiplayer/blob/main/public/SnakeGame.js"
click node_client_social "https://github.com/marto993/snake-multiplayer/blob/main/public/SnakeGame.js"
click node_socket_server "https://github.com/marto993/snake-multiplayer/blob/main/index.js"
click node_room_manager "https://github.com/marto993/snake-multiplayer/blob/main/index.js"
click node_rounds "https://github.com/marto993/snake-multiplayer/blob/main/index.js"
click node_sync "https://github.com/marto993/snake-multiplayer/blob/main/index.js"
click node_combat "https://github.com/marto993/snake-multiplayer/blob/main/index.js"
click node_consumables "https://github.com/marto993/snake-multiplayer/blob/main/index.js"
click node_snake_logic "https://github.com/marto993/snake-multiplayer/blob/main/public/snakeClass.js"
click node_social "https://github.com/marto993/snake-multiplayer/blob/main/index.js"
click node_online "https://github.com/marto993/snake-multiplayer/blob/main/index.js"
click node_profiles "https://github.com/marto993/snake-multiplayer/blob/main/index.js"
click node_rankings "https://github.com/marto993/snake-multiplayer/blob/main/index.js"

classDef toneNeutral fill:#f8fafc,stroke:#334155,stroke-width:1.5px,color:#0f172a
classDef toneBlue fill:#dbeafe,stroke:#2563eb,stroke-width:1.5px,color:#172554
classDef toneAmber fill:#fef3c7,stroke:#d97706,stroke-width:1.5px,color:#78350f
classDef toneMint fill:#dcfce7,stroke:#16a34a,stroke-width:1.5px,color:#14532d
classDef toneRose fill:#ffe4e6,stroke:#e11d48,stroke-width:1.5px,color:#881337
classDef toneIndigo fill:#e0e7ff,stroke:#4f46e5,stroke-width:1.5px,color:#312e81
classDef toneTeal fill:#ccfbf1,stroke:#0f766e,stroke-width:1.5px,color:#134e4a
class node_socket_server,node_room_manager,node_rounds,node_sync,node_social,node_online toneBlue
class node_client_snake,node_combat,node_consumables,node_snake_logic toneAmber
class node_browser,node_client_app,node_render,node_client_social toneMint
class node_profiles,node_rankings,node_sqlite toneRose
class node_player,node_socketio toneIndigo
```

## Components

### Authoritative server

- [Socket event server](https://github.com/marto993/snake-multiplayer/blob/main/index.js): `index.js`
- [Room lifecycle](https://github.com/marto993/snake-multiplayer/blob/main/index.js): `index.js`
- [Rounds and scoring](https://github.com/marto993/snake-multiplayer/blob/main/index.js): `index.js`
- [Game state sync](https://github.com/marto993/snake-multiplayer/blob/main/index.js): `index.js`
- [Invites and spectators](https://github.com/marto993/snake-multiplayer/blob/main/index.js): `index.js`
- [Online players](https://github.com/marto993/snake-multiplayer/blob/main/index.js): `index.js`

### Game mechanics

- [Client Snake](https://github.com/marto993/snake-multiplayer/blob/main/public/snakeClass.js): `public/snakeClass.js`
- [Projectiles](https://github.com/marto993/snake-multiplayer/blob/main/index.js): `index.js`
- [Consumables](https://github.com/marto993/snake-multiplayer/blob/main/index.js): `index.js`
- [Snake movement](https://github.com/marto993/snake-multiplayer/blob/main/public/snakeClass.js): `public/snakeClass.js`

### Browser client

- [Game interface](https://github.com/marto993/snake-multiplayer/blob/main/public/index.html): `public/index.html`
- [Client controller](https://github.com/marto993/snake-multiplayer/blob/main/public/SnakeGame.js): `public/SnakeGame.js`
- [Canvas rendering](https://github.com/marto993/snake-multiplayer/blob/main/public/SnakeGame.js): `public/SnakeGame.js`
- [Rooms and invites UI](https://github.com/marto993/snake-multiplayer/blob/main/public/SnakeGame.js): `public/SnakeGame.js`

### Player records

- [Profile statistics](https://github.com/marto993/snake-multiplayer/blob/main/index.js): `index.js`
- [Global rankings](https://github.com/marto993/snake-multiplayer/blob/main/index.js): `index.js`
- **SQLite records**

### Other components

- **Player**
- **Socket.IO transport**

## Connections

- Player → Game interface: uses
- Game interface → Client controller: loads
- Client controller → Socket.IO transport: sends events
- Socket.IO transport → Socket event server: dispatches events
- Socket event server → Socket.IO transport: emits updates
- Socket.IO transport → Client controller: delivers updates
- Client controller → Client Snake: updates prediction
- Client controller → Canvas rendering: draws state
- Client controller → Rooms and invites UI: updates UI
- Socket event server → Room lifecycle: handles room events
- Socket event server → Profile statistics: resolves profiles
- Room lifecycle → Rounds and scoring: manages rounds
- Room lifecycle → Game state sync: broadcasts state
- Rounds and scoring → Snake movement: advances snakes
- Rounds and scoring → Projectiles: handles attacks
- Rounds and scoring → Consumables: updates items
- Socket event server → Invites and spectators: handles spectator and invite events
- Socket event server → Online players: serves online list
- Profile statistics → SQLite records: reads and writes
- Global rankings → SQLite records: reads records
- Socket event server → Global rankings: serves rankings