# zfedoran/pixel-sprite-generator architecture

> Architecture diagram of the GitHub repository zfedoran/pixel-sprite-generator, generated by GitDiagram from its file tree, README and a sample of source files (last updated 2026-09-25). It is an AI-made overview: check details against the source.

- Interactive diagram: https://gitdiagram.com/zfedoran/pixel-sprite-generator
- Repository: https://github.com/zfedoran/pixel-sprite-generator

## Overview

This is a small JavaScript library for procedurally generating pixel sprites. A caller supplies a Mask and options to Sprite; the generator initializes template data, applies mask values, randomizes and mirrors the pattern, then produces pixel colors for a canvas. The README documents this algorithm, while the sampled source confirms mask, sprite, pixel-data, and canvas responsibilities. Some constructor wiring is omitted, so the graph avoids asserting unshown method-call sequences.

Main entry points: [`pixel-sprite-generator.js`](https://github.com/zfedoran/pixel-sprite-generator/blob/master/pixel-sprite-generator.js) (Sprite generator)

## Diagram (Mermaid)

```mermaid
flowchart TD

subgraph group_algorithm["Sprite algorithm"]
  node_mask["Mask template"]
  node_sprite["Sprite generator"]
  node_template["Template data"]
  node_randomize["Pattern randomization"]
  node_mirror["Pattern mirroring"]
  node_edges["Edge generation"]
end

subgraph group_rendering["Canvas rendering"]
  node_color["Color generation"]
  node_canvas["Canvas output"]
end

node_caller(("Library caller"))
node_browser_canvas["Browser canvas API"]

node_caller -->|"defines template"| node_mask
node_caller -->|"creates sprite"| node_sprite
node_sprite -->|"reads dimensions"| node_mask
node_sprite -->|"initializes data"| node_template
node_sprite -->|"randomizes values"| node_randomize
node_sprite -->|"mirrors pattern"| node_mirror
node_sprite -->|"generates edges"| node_edges
node_sprite -->|"renders pixels"| node_color
node_color -->|"writes pixel data"| node_canvas
node_canvas -->|"uses canvas"| node_browser_canvas

click node_mask "https://github.com/zfedoran/pixel-sprite-generator/blob/master/pixel-sprite-generator.js"
click node_sprite "https://github.com/zfedoran/pixel-sprite-generator/blob/master/pixel-sprite-generator.js"
click node_template "https://github.com/zfedoran/pixel-sprite-generator/blob/master/pixel-sprite-generator.js"
click node_randomize "https://github.com/zfedoran/pixel-sprite-generator/blob/master/pixel-sprite-generator.js"
click node_mirror "https://github.com/zfedoran/pixel-sprite-generator/blob/master/pixel-sprite-generator.js"
click node_edges "https://github.com/zfedoran/pixel-sprite-generator/blob/master/pixel-sprite-generator.js"
click node_color "https://github.com/zfedoran/pixel-sprite-generator/blob/master/pixel-sprite-generator.js"
click node_canvas "https://github.com/zfedoran/pixel-sprite-generator/blob/master/pixel-sprite-generator.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_mask,node_sprite,node_template,node_randomize,node_mirror,node_edges,node_browser_canvas toneBlue
class node_color,node_canvas toneAmber
class node_caller toneIndigo
```

## Components

### Sprite algorithm

- [Mask template](https://github.com/zfedoran/pixel-sprite-generator/blob/master/pixel-sprite-generator.js): `pixel-sprite-generator.js`
- [Sprite generator](https://github.com/zfedoran/pixel-sprite-generator/blob/master/pixel-sprite-generator.js): `pixel-sprite-generator.js`
- [Template data](https://github.com/zfedoran/pixel-sprite-generator/blob/master/pixel-sprite-generator.js): `pixel-sprite-generator.js`
- [Pattern randomization](https://github.com/zfedoran/pixel-sprite-generator/blob/master/pixel-sprite-generator.js): `pixel-sprite-generator.js`
- [Pattern mirroring](https://github.com/zfedoran/pixel-sprite-generator/blob/master/pixel-sprite-generator.js): `pixel-sprite-generator.js`
- [Edge generation](https://github.com/zfedoran/pixel-sprite-generator/blob/master/pixel-sprite-generator.js): `pixel-sprite-generator.js`

### Canvas rendering

- [Color generation](https://github.com/zfedoran/pixel-sprite-generator/blob/master/pixel-sprite-generator.js): `pixel-sprite-generator.js`
- [Canvas output](https://github.com/zfedoran/pixel-sprite-generator/blob/master/pixel-sprite-generator.js): `pixel-sprite-generator.js`

### Other components

- **Library caller**
- **Browser canvas API**

## Connections

- Library caller → Mask template: defines template
- Library caller → Sprite generator: creates sprite
- Sprite generator → Mask template: reads dimensions
- Sprite generator → Template data: initializes data
- Sprite generator → Pattern randomization: randomizes values
- Sprite generator → Pattern mirroring: mirrors pattern
- Sprite generator → Edge generation: generates edges
- Sprite generator → Color generation: renders pixels
- Color generation → Canvas output: writes pixel data
- Canvas output → Browser canvas API: uses canvas