The Locked Door

Part of the Projects section of Coddy's Godot journey. Lesson 31 of 36.

A Door blocks the way to the stairs. It is a StaticBody2D, so move_and_slide stops the hero at it. In front of it is DoorZone, an Area2D a little wider than the door, so the hero reaches it first.

When the hero walks into the zone with the key, the door opens:

func _on_door_zone_body_entered(body):
	if has_key:
		$Door.queue_free()
		$DoorZone.queue_free()

Remove the zone too. Otherwise the hero walks back into it, $Door no longer exists, and the game stops with Node not found.

Remove the door with queue_free(). hide() only stops the drawing. Its collision shape would still block the hero.

Challenge

Medium

Open the door with the key.

In main.gd, connect $DoorZone.body_entered to a function.
When a body enters and has_key is true, remove $Door and $DoorZone.

Press Play, take the key and walk to the door: it opens. Then Check.

Try it yourself

extends Node2D

var has_key = false

func _ready():
	$Key.body_entered.connect(_on_key_body_entered)

func _on_key_body_entered(body):
	has_key = true
	$Key.queue_free()
	$HUD/KeyIcon.visible = true