Add new level, collapsable component, knockback component

scripts/components/collectable.gd

@@ -9,14 +9,14 @@ var root: Node
 signal collected(amount: int)
 
 func _ready() -> void:
-    if area2d:
-        area2d.body_entered.connect(_on_area2d_body_entered)
-    else:
-        print("Collectable node missing Area2D child.")
+	if area2d:
+		area2d.body_entered.connect(_on_area2d_body_entered)
+	else:
+		print("Collectable node missing Area2D child.")
 
-    root = get_parent()
+	root = get_parent()
 
 func _on_area2d_body_entered(body: Node2D) -> void:
-    if body.has_node("CanPickUpComponent"):
-        collected.emit(collectable_data.amount)
-        root.queue_free()
+	if body.has_node("CanPickUpComponent"):
+		collected.emit(collectable_data.amount)
+		root.queue_free()