Boss encounter door lock

metroidvania/Scenes/World/Trigger.gd

@@ -0,0 +1,11 @@
+extends Area2D
+
+signal triggered
+
+var enabled = true
+
+
+func _on_Trigger_body_entered(body):
+	if enabled:
+		emit_signal("triggered")
+		enabled = false

metroidvania/Scenes/World/Trigger.tscn

@@ -0,0 +1,15 @@
+[gd_scene load_steps=3 format=2]
+
+[ext_resource path="res://Scenes/World/Trigger.gd" type="Script" id=1]
+
+[sub_resource type="RectangleShape2D" id=1]
+extents = Vector2( 8, 16 )
+
+[node name="Trigger" type="Area2D"]
+script = ExtResource( 1 )
+
+[node name="Collision" type="CollisionShape2D" parent="."]
+position = Vector2( 23, 16 )
+shape = SubResource( 1 )
+
+[connection signal="body_entered" from="." to="." method="_on_Trigger_body_entered"]