About

Const Generator generates GDScript files with constants for many things that are usually accessed by plain strings:

• ProjectFiles class: res:// paths to all relevant files in your project
• Groups class: scene tree groups
• InputActions class: input actions
• Physics/Render/Navigation2D(3D) and Avoidance classes: physics/render/navigation/avoidance layers

So that in your code you use:

• preload(ProjectFiles.Scenes.ENEMY) instead of preload("res://scenes/enemy/enemy.tscn")
• node.is_in_group(Groups.PLAYER) instead of node.is_in_group("player")
• node.set_collision_layer_value(Physics2D.Layer.COINS, true) instead of node.set_collision_layer_value(2, true)

Benefits:

• Moving files won't break your project or add irrelevant changes to your diffs/commits.
• Illegal reference errors are prevented at build/dev time, since you reference constants and not arbitrary strings.

Configurable (in addons/const_generator/const_generator.gd)

Pretty much everything can be configured by changing the code:

• Project scan frequency (default: every 5 seconds).
• Generated class' names and file extensions they're mapped to.
• Files/directories can be excluded from scanning (default: the addons directory)

Example

The following project structure

- project.godot
- sources/
    - entities/
        - enemy/
            - enemy.tscn
            - enemy.gd
            - enemy_sprite.png
            - enemy_stats.tres
    - levels/
        - tutorial/
            - tutorial.tscn
            - tutorial.gd
    - ui/
        ui_theme.tres

would yield

class_name ProjectFiles

class Scenes:
    const ENEMY = 'res://sources/enemy/enemy.tscn'
    const TUTORIAL = 'res://sources/levels/tutorial.tscn'

class Scripts:
    const ENEMY = 'res://sources/enemy/enemy.gd'
    const TUTORIAL = 'res://sources/levels/tutorial.gd'

class Resources:
    const ENEMY_STATS = 'res://sources/enemy/enemy_stats.tres'
    const UI_THEME = 'res://sources/ui/ui_theme.tres'

class Images:
    const ENEMY_SPRITE = 'res://sources/enemy/enemy_sprite.png'

Additional information

1. Names of constants in the generated file are SCREAMING_SNAKE_CASE'd project file's names, so they have to be unique.
2. This plugin periodically scans the whole project. This may have implications for large projects/old computers, although the UI won't freeze because it runs in a separate thread.
3. The generator only runs in the editor and does not do anything in a built game.