adding stage handling to card

src/logic-scenes/board/card.gd

@@ -10,6 +10,8 @@ var noise: Noise = FastNoiseLite.new()
 var wiggle_tween
 var scale_tween
 
+var on_stage = false
+
 @export var text: String = "" :
     set (value):
         text = value
@@ -80,7 +82,7 @@ func _ready():
         _handle_wiggle(0)
 
 func _process(delta: float) -> void:
-    
+    if self.on_stage:
         if highlighted:
             _handle_wiggle(delta)
         
@@ -104,16 +106,18 @@ func _on_focus_exited():
     print(self, "is not focused")
 
 func _on_mouse_entered():
+    if self.on_stage:
         if not Input.is_action_pressed("mouse_left"):
             highlighted = true
             if "handle_hover" in owner:
                 owner.handle_hover(self)
 
 func _on_mouse_exited():
+    if self.on_stage:
         highlighted = false
 
 func _on_input_event(viewport, event, shape_idx):
-    
+    if self.on_stage:
         if event is InputEventMouseMotion:
             _move_card()