# techwithtim/snake-game architecture

> Architecture diagram of the GitHub repository techwithtim/snake-game, generated by GitDiagram from its file tree, README and a sample of source files (last updated 2026-09-27). It is an AI-made overview: check details against the source.

- Interactive diagram: https://gitdiagram.com/techwithtim/snake-game
- Repository: https://github.com/techwithtim/snake-game

## Overview

Snake-Game is a small, single-file Pygame implementation of the classic grid-based snake game. The player steers the snake; the game loop advances it, places food, checks food and collision conditions, grows or resets the snake, and redraws the screen. Snake movement and drawing are implemented by the snake and cube classes in the same file. The README describes no additional product capabilities; the graph reflects the supplied source, which starts the game by calling main() directly.

Main entry points: [`snake.py`](https://github.com/techwithtim/snake-game/blob/master/snake.py) (Game Loop)

## Diagram (Mermaid)

```mermaid
flowchart TD

subgraph group_runtime["Game Runtime"]
  node_loop["Game Loop<br/>[snake.py]"]
end

subgraph group_gameplay["Gameplay State"]
  node_movement["Snake Movement<br/>[snake.py]"]
  node_snake_state["Snake State<br/>[snake.py]"]
  node_food_placement["Food Placement<br/>[snake.py]"]
  node_food["Food Cube<br/>[snake.py]"]
end

subgraph group_rendering["Rendering"]
  node_grid["Grid Drawing<br/>[snake.py]"]
  node_redraw["Screen Redraw<br/>[snake.py]"]
end

node_player(("Player"))
node_pygame["Pygame Runtime"]

node_player -->|"steers"| node_movement
node_movement -->|"polls input"| node_pygame
node_loop -->|"advances"| node_movement
node_loop -->|"requests position"| node_food_placement
node_food_placement -->|"checks occupancy"| node_snake_state
node_food_placement -->|"returns position"| node_loop
node_loop -->|"checks collisions"| node_snake_state
node_loop -->|"checks position"| node_food
node_loop -->|"requests redraw"| node_redraw
node_redraw -->|"draws grid"| node_grid
node_redraw -->|"draws snake"| node_snake_state
node_redraw -->|"draws food"| node_food
node_redraw -->|"updates display"| node_pygame

click node_loop "https://github.com/techwithtim/snake-game/blob/master/snake.py"
click node_movement "https://github.com/techwithtim/snake-game/blob/master/snake.py"
click node_snake_state "https://github.com/techwithtim/snake-game/blob/master/snake.py"
click node_food_placement "https://github.com/techwithtim/snake-game/blob/master/snake.py"
click node_food "https://github.com/techwithtim/snake-game/blob/master/snake.py"
click node_grid "https://github.com/techwithtim/snake-game/blob/master/snake.py"
click node_redraw "https://github.com/techwithtim/snake-game/blob/master/snake.py"

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_loop toneBlue
class node_movement,node_snake_state,node_food_placement,node_food toneAmber
class node_grid,node_redraw toneMint
class node_player,node_pygame toneIndigo
```

## Components

### Game Runtime

- [Game Loop](https://github.com/techwithtim/snake-game/blob/master/snake.py): `snake.py`

### Gameplay State

- [Snake Movement](https://github.com/techwithtim/snake-game/blob/master/snake.py): `snake.py`
- [Snake State](https://github.com/techwithtim/snake-game/blob/master/snake.py): `snake.py`
- [Food Placement](https://github.com/techwithtim/snake-game/blob/master/snake.py): `snake.py`
- [Food Cube](https://github.com/techwithtim/snake-game/blob/master/snake.py): `snake.py`

### Rendering

- [Grid Drawing](https://github.com/techwithtim/snake-game/blob/master/snake.py): `snake.py`
- [Screen Redraw](https://github.com/techwithtim/snake-game/blob/master/snake.py): `snake.py`

### Other components

- **Player**
- **Pygame Runtime**

## Connections

- Player → Snake Movement: steers
- Snake Movement → Pygame Runtime: polls input
- Game Loop → Snake Movement: advances
- Game Loop → Food Placement: requests position
- Food Placement → Snake State: checks occupancy
- Food Placement → Game Loop: returns position
- Game Loop → Snake State: checks collisions
- Game Loop → Food Cube: checks position
- Game Loop → Screen Redraw: requests redraw
- Screen Redraw → Grid Drawing: draws grid
- Screen Redraw → Snake State: draws snake
- Screen Redraw → Food Cube: draws food
- Screen Redraw → Pygame Runtime: updates display