EAN-13 Barcode

Generate and display EAN-13 barcodes. Includes a ready-to-use UI node and low-level utility classes for encoding, validation, and rendering.

Features

• 🖼️ EAN13Rect drop-in UI node that renders EAN-13 barcodes automatically
• 🔢 Accepts 12- or 13-digit numbers with automatic checksum calculation
• ⚙️ EAN13 utility class for checksum, encoding, and validation
• 🖌️ Customizable bar color, background color, and module size
• 📏 Optional quiet zones with visual indicators
• 🔤 Optional human-readable text rendering below the barcode
• 🚀 Optimized for editor and runtime use

Usage

Using EAN13Rect (UI Node)

1. Add an EAN13Rect node to your scene.
2. Set the number property to your EAN-13 value.

$EAN13Rect.number = "590123412345"

If 12 digits are provided, the checksum digit is calculated automatically.
The barcode texture updates automatically when properties change.

Using EAN13 (Code-based)

For validation or manual encoding:

var ean: String = EAN13.ean13("590123412345")
var is_valid: bool = EAN13.validate(ean)

To access the raw encoded data (95 modules):

var encoded = EAN13.encode(ean)

Rendering to an Image

For custom rendering pipelines, use Ean13Renderer:

var renderer = Ean13Renderer.new()
var image: Image = renderer.generate_image_no_text(ean, encoded)

Documentation & Examples

Full API documentation and usage examples are available here:
https://kenyoni-software.github.io/godot-addons/addons/ean13/