GDScript overview

Basic terms

• Tabs

• No ;

• Comments are done with #

• Function is func _name():

• Variables are var, const

• Basic logging print()

• if and if not (not parentheses):

if direction:
	velocity.x = direction.x * SPEED
	velocity.z = direction.z * SPEED
else:
	velocity.x = move_toward(velocity.x, 0, SPEED)
	velocity.z = move_toward(velocity.z, 0, SPEED)

• not, and instead of ! and &&

• each indentation = block of code

Common standard functions

• print()
• rotate_y() (radians)
• deg_to_rad()

Working with settings

var gravity = ProjectSettings.get_setting("physics/3d/default_gravity");

This gravity value is set in Settings -> General -> Physics -> 3D. Other settings could be accessed in the similar manner. When default settings are changed, project.godot file is being updated with the corresponding values.

Here’s an example of changing the default gravity value in settings:

[physics]

3d/default_gravity=9.5

Getting keys

Keys = actions.

Handling example:

# Called every frame. 'delta' is the elapsed time since the previous frame.
func _process(delta):
	if Input.is_action_pressed("ui_left"):
		rotate_y(deg_to_rad(-ROTATION_SPEED))
	else:
		if Input.is_action_pressed("ui_right"):
			rotate_y(deg_to_rad(ROTATION_SPEED))

elif:

# Called every frame. 'delta' is the elapsed time since the previous frame.
func _process(delta):
	if Input.is_action_pressed("ui_left"):
		rotate_y(deg_to_rad(-ROTATION_SPEED))
	elif Input.is_action_pressed("ui_right"):
		rotate_y(deg_to_rad(ROTATION_SPEED))

Most useful docs pages

Overridable functions