feat: add closed door node; add 2 new signals to puzzleButton node; connected signals to lockedDoor node;

Scenes/PuzzleButton/puzzle_button.gd

@@ -1,5 +1,8 @@
 extends Area2D
 var bodies_on_top = 0
+signal pressed
+signal unpressed 
+
 # Called when the node enters the scene tree for the first time.
 func _ready() -> void:
 	pass # Replace with function body.
@@ -14,11 +17,11 @@ func _on_body_entered(body: Node2D) -> void:
 	bodies_on_top = bodies_on_top + 1
 	if (body.is_in_group("pushable") or body is Player) and bodies_on_top == 1:
 		$AnimatedSprite2D.play("pressed")
-		print("PRESSED!")
+		pressed.emit()
 
 
 func _on_body_exited(body: Node2D) -> void:
 	bodies_on_top = bodies_on_top - 1
 	if (body.is_in_group("pushable") or body is Player) and bodies_on_top == 0:
 		$AnimatedSprite2D.play("unpressed")
-		print("UNPRESSED!")
+		unpressed.emit()