Clear the Path

Part of the Signals and Collisions section of Coddy's Godot journey. Lesson 18 of 27.

To remove every node of a kind, loop over the group and free each node:

for crate in get_tree().get_nodes_in_group("crates"):
	crate.queue_free()

You cannot free the list itself. get_nodes_in_group("crates").queue_free() stops the game with an error, because a list is not a node.

Three crates block the way to the right. They are all in the group crates.

Challenge

Medium

Make the switch remove every crate.

In _on_switch_body_entered, replace the Crate1 line with a for loop over the group crates.
Free each crate inside the loop.

Press Play and step on the switch: every crate is gone and you walk through. Then Check.

Try it yourself

extends Node2D

func _ready():
	$Switch.body_entered.connect(_on_switch_body_entered)

func _on_switch_body_entered(body):
	$Crate1.queue_free()

Test yourself

This lesson includes a short quiz. Start the lesson to answer it and track your progress.

All lessons in Signals and Collisions

Practice on your own: Godot playground