up:: [[Godot MOC]], [[Computing MOC]] tags:: #note/develop #on/computing/gamedev #on/computing/languages # GDScript GDScript is a high-level programming language built for [[Godot MOC|Godot]]. It is [[Object Oriented Programming|object-oriented]], [[Imperative Programming|imperative]], and [[Gradual Typing|gradually typed]]. Its goal is to be optimized for and tightly integrated with the Godot Engine. The language uses an indentation-based syntax similar to other languages like [[Python]]. GDScript is entirely independent from Python and is not based on it. ## Conventions ### Naming Conventions #### Classes Classes use PascalCase. #### Variables and Functions Variables and functions use snake_case. #### Constants Constants use ALL_CAPS. #### Custom Signal Names When naming a custom [[Godot Signals|signal]], use an action verb in the past tense. For example, `health_depleted`. #### Callback Methods for Signal Connections When connecting a [[Godot Signals|signal]] via code, a callback method will need to be passed to the signal's `connect()` method. By convention, this callback method should be named as `_on_nodeName_signalName` (for example, `_on_timer_timeout`). When using [[C-Sharp|C#]] for this, the naming convention is `OnNodeNameSignalName` (for example, `OnTimerTimeout`). ## Quick Tips > [!TIP] Placement of Member Variables in GDScript Files > In GDScript, each file is implicitly a class. Member variables sit near the top of the script, after any `extends` lines, but before functions. > [!TIP] Placement of Functions in GDScript Files > Functions can be defined after they are used. For example, you can pass a callback function `on_timer_timeout` to a `connect()` method at the top of a file, while `on_timer_timeout` is defined at the bottom of the file. > [!TIP] Editing Script Variables in the Editor Inspector > Use the `@export` keyword on a variable to make it editable in the inspector. > [!TIP] Shorthand for `get_node()` > ` is shorthand for `get_node()` and returns the node at the relative path from the current node (or returns `null` if the node is not found). ## References Juan Linietsky, Ariel Manzur, and Godot Community. “Godot Engine 4.2 Documentation.” Accessed February 29, 2024. [https://docs.godotengine.org/en/stable/index.html](https://docs.godotengine.org/en/stable/index.html). Juan Linietsky, Ariel Manzur, and Godot Community. “GDScript Reference.” Accessed February 29, 2024. [https://docs.godotengine.org/en/stable/tutorials/scripting/gdscript/index.html](https://docs.godotengine.org/en/stable/tutorials/scripting/gdscript/index.html).