# gotzillaz/uselessball architecture

> Architecture diagram of the GitHub repository gotzillaz/uselessball, generated by GitDiagram from its file tree, README and a sample of source files (last updated 2026-09-29). It is an AI-made overview: check details against the source.

- Interactive diagram: https://gitdiagram.com/gotzillaz/uselessball
- Repository: https://github.com/gotzillaz/uselessball

## Overview

UselessBall is a Kivy ball-control game. The player moves a controllable ball with mouse-driven joystick input to hit a moving randomized ball; wall contacts change ball colors, and randomized-ball wall contacts increment a hit count. The main loop schedules game updates, which move both balls and check collisions. The tree includes `useless.kv`, but its contents were not sampled, so its specific layout and wiring are not represented.

Main entry points: [`main.py`](https://github.com/gotzillaz/uselessball/blob/master/main.py) (Game widget)

## Diagram (Mermaid)

```mermaid
flowchart TD

subgraph group_interface["Game interface"]
  node_joystick["Mouse joystick<br/>[main.py]"]
  node_score["Hit count<br/>[main.py]"]
  node_layout["Game layout<br/>[useless.kv]"]
end

subgraph group_simulation["Game simulation"]
  node_game["Game widget<br/>[main.py]"]
  node_playerball["Player ball<br/>[main.py]"]
  node_randomball["Random ball<br/>[main.py]"]
  node_wallmotion["Wall motion<br/>[main.py]"]
  node_collision["Ball collision<br/>[main.py]"]
end

subgraph group_runtime["Kivy runtime"]
  node_app["Kivy app<br/>[main.py]"]
end

node_player(("Player"))

node_player -->|"controls"| node_joystick
node_app -->|"creates"| node_game
node_app -->|"schedules updates"| node_game
node_joystick -->|"provides input"| node_game
node_game -->|"moves and bounds"| node_playerball
node_game -->|"moves and bounces"| node_randomball
node_game -->|"checks"| node_collision
node_collision -->|"resets position"| node_randomball
node_game -->|"increments on wall hit"| node_score
node_playerball -->|"changes color at walls"| node_wallmotion
node_randomball -->|"changes color at walls"| node_wallmotion

click node_app "https://github.com/gotzillaz/uselessball/blob/master/main.py"
click node_game "https://github.com/gotzillaz/uselessball/blob/master/main.py"
click node_joystick "https://github.com/gotzillaz/uselessball/blob/master/main.py"
click node_playerball "https://github.com/gotzillaz/uselessball/blob/master/main.py"
click node_randomball "https://github.com/gotzillaz/uselessball/blob/master/main.py"
click node_wallmotion "https://github.com/gotzillaz/uselessball/blob/master/main.py"
click node_collision "https://github.com/gotzillaz/uselessball/blob/master/main.py"
click node_score "https://github.com/gotzillaz/uselessball/blob/master/main.py"
click node_layout "https://github.com/gotzillaz/uselessball/blob/master/useless.kv"

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_joystick,node_score,node_layout toneBlue
class node_game,node_playerball,node_randomball,node_wallmotion,node_collision toneAmber
class node_app toneMint
class node_player toneIndigo
```

## Components

### Game interface

- [Mouse joystick](https://github.com/gotzillaz/uselessball/blob/master/main.py): `main.py`
- [Hit count](https://github.com/gotzillaz/uselessball/blob/master/main.py): `main.py`
- [Game layout](https://github.com/gotzillaz/uselessball/blob/master/useless.kv): `useless.kv`

### Game simulation

- [Game widget](https://github.com/gotzillaz/uselessball/blob/master/main.py): `main.py`
- [Player ball](https://github.com/gotzillaz/uselessball/blob/master/main.py): `main.py`
- [Random ball](https://github.com/gotzillaz/uselessball/blob/master/main.py): `main.py`
- [Wall motion](https://github.com/gotzillaz/uselessball/blob/master/main.py): `main.py`
- [Ball collision](https://github.com/gotzillaz/uselessball/blob/master/main.py): `main.py`

### Kivy runtime

- [Kivy app](https://github.com/gotzillaz/uselessball/blob/master/main.py): `main.py`

### Other components

- **Player**

## Connections

- Player → Mouse joystick: controls
- Kivy app → Game widget: creates
- Kivy app → Game widget: schedules updates
- Mouse joystick → Game widget: provides input
- Game widget → Player ball: moves and bounds
- Game widget → Random ball: moves and bounces
- Game widget → Ball collision: checks
- Ball collision → Random ball: resets position
- Game widget → Hit count: increments on wall hit
- Player ball → Wall motion: changes color at walls
- Random ball → Wall motion: changes color at walls