feat: sticky exchange

src/logic-scenes/board/card-board.gd

@@ -263,11 +263,7 @@ func _end_drag(draggable: Draggable) -> void:
 			
 			# Make sure sticky is parented to board
 			if sticky.get_parent() != self:
-				sticky.reparent(self)
-			
-			# Ensure it's in the notes array
-			if not sticky in notes:
-				notes.append(sticky)
+				sticky.reparent(self)			
 		
 		# Check win condition after any sticky movement
 		check_board_completion()
@@ -275,7 +271,6 @@ func _end_drag(draggable: Draggable) -> void:
 
 func reclaim_sticky(note: StickyNote):
 	note.reparent(self)
-	notes.append(note)
 
 
 func check_board_completion():
@@ -288,12 +283,7 @@ func check_board_completion():
 		give_lore_feedback()
 
 func is_board_complete() -> bool:
-	if mementos_collected < 4: return false
-
-	for sticky : StickyNote in notes:
-		if not sticky.is_attached: return false
-
-	return true
+	return mementos_collected == 4 and notes.all(func (n : StickyNote): return n.is_attached)
 
 var unfitting: bool = false
 var incomplete: bool = false
@@ -337,8 +327,8 @@ func give_lore_feedback():
 # Mark area that was hovered over as currently selected
 func handle_hover(_draggable: Draggable) -> void:
 	# If we're hovering with the mouse without clicking, that updates our selection
-	if Input.is_mouse_button_pressed(MOUSE_BUTTON_LEFT): return
-	
+	if selection and selection.is_dragged: return
+
 	var candidate := _nearest_hovered(_sort_by_proximity_and_depth(notes))
 	if not candidate:
 		candidate = _nearest_hovered(_sort_by_proximity_and_depth(cards))
@@ -400,8 +390,7 @@ func _input(event) -> void:
 		closed.emit()
 		get_viewport().set_input_as_handled()
 
-
-	if selection and event is InputEventMouseMotion and not event.is_action_pressed("mouse_left"):
+	if selection and not selection.is_dragged and event is InputEventMouseMotion and not event.is_action_pressed("mouse_left"):
 		var candidate := _nearest_hovered(_sort_by_proximity_and_depth(notes))
 		if not candidate:
 			candidate = _nearest_hovered(_sort_by_proximity_and_depth(cards))

src/logic-scenes/board/draggable.gd

@@ -95,10 +95,9 @@ func _input(event: InputEvent) -> void:
 func _on_input_event(_viewport, event, _shape_idx):
 	if event is InputEventMouseButton and event.button_index == MOUSE_BUTTON_LEFT and event.pressed:
 		if highlighted:
-			var mouse_offset := get_viewport().get_mouse_position() - position
 			var board := _get_board()
 			if board and board.has_method("handle_mouse_button"):
-				board.handle_mouse_button(event, self)
+				board.handle_mouse_button(event, self) 
 
 
 ## Starts a drag operation

src/logic-scenes/board/sticky-note.gd

@@ -153,12 +153,7 @@ func _find_drop_target() -> Node:
 			if (not closest) or ((area.position - position).length() < (closest.position - position).length()):
 				closest = area
 
-	# Return the closest card if found
-	if closest:
-		return closest
-
-	# Priority 2: Default to board (stay loose in dropzone)
-	return null
+	return closest
 
 ## Find the nearest panel that can accept this sticky
 func _find_nearest_panel() -> StickyNotePanel: