Built-in signals

Learn built-in signals like button.pressed.

Built-in signals

Most pre-built nodes in Godot come with built-in signals. For example, a Button node has a pressed signal, and a Timer node has a timeout signal.

# Button node emits pressed when clicked
# Timer node emits timeout when its time runs out

You can inspect and listen to these built-in signals either from the editor's 'Node' dock or directly through code.

Other common built-in signals

Built-in signals are tailored to different node types. For Area2D, body_entered is reported when a physics body enters the area; LineEdit fires text_changed when text is modified.

# When an object collides with Area2D:
# body_entered(body: Node2D)
# When text is entered in LineEdit:
# text_changed(new_text: String)

These signals automatically pass relevant arguments (like the colliding body) to the listener.

Exercise Report built-in signal

Define a _ready function. Inside, print the text "Buton sinyali: pressed" using print.

Show example solution

extends Node

func _ready():
    print("Buton sinyali: pressed")

Test yourself

Which built-in signal is triggered when a Button node is clicked with the mouse?
- mouse_hit
- trigger_on
- pressed
- clicked_now
Show answer

pressed — In Godot, the standard click signal for BaseButton and Button classes is named 'pressed'.

Access button signal

var btn = Button.new()
# Buton tiklama sinyalinin adi
var sinyal_adi = btn.____.name

Show answer

var btn = Button.new()
# Buton tiklama sinyalinin adi
var sinyal_adi = btn.pressed.name

Node and built-in signal match

Button

pressed
Timer

timeout
Area2D

body_entered
LineEdit

text_changed

Next lesson: The connect method

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