EAN-13 Barcode¶

EAN-13 barcode generation and rendering addon for Godot. Provides a EAN13Rect node that can be used to display EAN-13 barcodes, as well as utility classes for encoding and rendering EAN-13 codes.

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Compatibility¶

Godot	Version
4.6	all
4.5	all
4.4	all

Screenshot¶

EAN13-Rect node inspector screenshot

Example¶

/examples/ean13/

Interface¶

EAN13Rect¶

extendsTextureRect

res://addons/kenyoni/ean13/ean13_rect.gd

TextureRect like node. The texture updates automatically. Texture generation takes one frame, so changes to the number or other properties become visible one frame later.

Properties¶

Name	Type	Description
add_quiet_zone	bool	Add a quiet zone around the code.
auto_module_size	bool	Automatically set the module pixel size based on the size. Do not use expand mode `KEEP_SIZE` when using it. Turn this off when the EAN-13 Code is resized often, as it impacts the performance quite heavily.
auto_update	bool	Automatically update the barcode when a property changes.
background_color	Color	Background color.
bar_color	Color	Bar color.
module_size	int	Use that many pixel for one module.
number	String	The number to generate the EAN-13 code for. Must be 12 or 13 digits long. If 12 digits are given, the checksum digit is calculated automatically. Non-digit characters are automatically removed.
show_quiet_zone_indicator	bool	Show an arrow indicator for the right quiet zone. Requires quiet zone to be enabled.
show_text	bool	Show the number as text below the bars. Requires quiet zone to be enabled.
text_font	Font	Font for the text. If null, the default project font is used.

Methods¶

String ean13() const: The effective number used to generate the EAN-13 code, including the checksum digit. Only set if update was called.
void update(): Updates the EAN-13 code and texture based on the current properties.

EAN13¶

extendsObject

res://addons/kenyoni/ean13/ean13.gd

EAN-13 encoding class.

Methods¶

int checksum(number: int) static: Calculate the EAN-13 check digit for the given number.
String ean13(number: String) static: Get the EAN-13 number including the check digit.; number must be a string of 12 digits; all non-digit characters are removed automatically.
String ean13_int(number: int) static: Get the EAN-13 number including the check digit from an integer.
PackedByteArray encode(number: String) static: Encode the given EAN-13 number and return the encoded data as a byte array. The returned array has a size of 95 bytes; each byte represents a module (0 for light, 1 for dark).
bool validate(number: String) static: Validate the given EAN-13 number.
bool validate_int(number: int) static: Validate the given EAN-13 number.

Ean13Renderer¶

extendsObject

res://addons/kenyoni/ean13/renderer.gd

EAN-13 code renderer class.

Properties¶

Name	Type	Description
add_quiet_zone	bool	Add a quiet zone around the code.
background_color	Color	Background color.
bar_color	Color	Bar color.
show_quiet_zone_indicator	bool	Show an arrow indicator for the right quiet zone.
show_text	bool	Show the number as text below the bars.
text_font	Font	Font for the text. If null, the default project font is used.

Methods¶

Image generate_image(ean13: String, encoded_data: PackedByteArray) const: Generates an Image of the EAN-13 barcode based on the provided encoded data. Asynchronous method. For a synchronous version without text rendering call generate_image_no_text. Returns null if rendering failed.
Image generate_image_no_text(ean13: String, encoded_data: PackedByteArray) const: Generates an Image of the EAN-13 barcode based on the provided encoded data, without rendering the text.

Changelog¶

1.0.0¶

Initial release.