i dont even remember

scripts/completion_counter.gd

@@ -1,19 +1,28 @@
 extends Node
 
 signal unlock
+signal lock
 
 @export var nodes_needed: Array[Completer]
-var uncompleted: int
+
+var unlocked: bool
 
 func _ready():
-	uncompleted = nodes_needed.size()
 	for node in nodes_needed:
-		node.completed.connect(complete)
+		node.triggered.connect(complete)
 
 func complete():
-	uncompleted -= 1
-	if uncompleted == 0:
-		unlock.emit()
+	if areAllNodesUnlocked():
+		if !unlocked:
+			unlock.emit()
+		unlocked = true
+	else:
+		if unlocked:
+			lock.emit()
+		unlocked = false
 
-func uncomplete():
-	pass #TODO
+func areAllNodesUnlocked():
+	for node in nodes_needed:
+		if !node.completed:
+			return false
+	return true

scripts/gravity_gun.gd

@@ -0,0 +1,6 @@
+extends CanvasLayer
+
+@onready var gravity_particles: GPUParticles3D = $SubViewportContainer/SubViewport/Node3D/Camera3D/MeshInstance3D/GravityParticles
+
+func _process(_delta: float) -> void:
+	gravity_particles.visible = Input.is_action_pressed("gravity_activate")

scripts/interactables/completer/button_stand.gd

@@ -4,4 +4,7 @@ extends Completer
 
 func _on_interaction_area_interacted():
 	animation_player.play("press")
-	super.toggle_complete()
+	toggle_complete()
+	if one_shot:
+		await animation_player.animation_finished
+		$Button.hide()

scripts/interactables/completer/completer_base.gd

@@ -1,16 +1,16 @@
+@tool
 extends Node
 class_name Completer
 
 @export var one_shot: bool
 
-signal completed
-signal uncompleted
+signal triggered
 
-var toggle: bool = true
+var completed: bool
 
 func toggle_complete():
-	toggle = !toggle
-	if one_shot || toggle:
-		completed.emit()
+	if one_shot:
+		completed = true
 	else:
-		uncompleted.emit()
+		completed = !completed
+	triggered.emit()