changes

ActionState.gd

@@ -39,10 +39,15 @@ func _process(_delta: float) -> void:
 	if not current_scene:
 		return
 	
-	var global_mouse_pos = get_viewport().get_mouse_position()
-	var camera = get_viewport().get_camera_2d()
+	# Use the scene's viewport (SubViewport), not the root viewport,
+	# so we get the correct Camera2D and properly account for zoom/position.
+	var scene_viewport = current_scene.get_viewport()
+	var camera = scene_viewport.get_camera_2d()
+	var global_mouse_pos: Vector2
 	if camera:
 		global_mouse_pos = camera.get_global_mouse_position()
+	else:
+		global_mouse_pos = scene_viewport.get_mouse_position()
 	
 	# Find all SetPieces in current scene
 	var new_hovered: Array[SetPiece] = []
@@ -53,7 +58,7 @@ func _process(_delta: float) -> void:
 				new_hovered.append(piece)
 	
 	# Sort by priority (highest first)
-	new_hovered.sort_custom(func(a, b): return b.priority > a.priority)
+	new_hovered.sort_custom(func(a, b): return b.priority < a.priority)
 	
 	# Check if top piece changed
 	var new_top = new_hovered[0] if new_hovered.size() > 0 else null