changes

ActionState.gd

@@ -9,6 +9,13 @@ var current_action: int = Action.WALK:
 
 signal action_changed(new_action: int)
 
+# Centralized SetPiece hover tracking
+var current_scene: Node = null
+var hovered_setpieces: Array[SetPiece] = []
+var top_hovered_setpiece: SetPiece = null
+
+signal hover_changed(piece: SetPiece)
+
 func get_action_name() -> String:
 	match current_action:
 		Action.WALK: return "walk"
@@ -19,3 +26,39 @@ func get_action_name() -> String:
 
 func get_action_enum() -> int:
 	return current_action
+
+func set_current_scene(scene: Node) -> void:
+	current_scene = scene
+	hovered_setpieces.clear()
+	top_hovered_setpiece = null
+
+func get_top_hovered_setpiece() -> SetPiece:
+	return top_hovered_setpiece
+
+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()
+	if camera:
+		global_mouse_pos = camera.get_global_mouse_position()
+	
+	# Find all SetPieces in current scene
+	var new_hovered: Array[SetPiece] = []
+	for piece in current_scene.find_children("*", "SetPiece", true, false):
+		if piece is SetPiece:
+			var local_pos = piece.to_local(global_mouse_pos)
+			if piece.polygon.size() > 0 and Geometry2D.is_point_in_polygon(local_pos, piece.polygon):
+				new_hovered.append(piece)
+	
+	# Sort by priority (highest first)
+	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
+	if new_top != top_hovered_setpiece:
+		top_hovered_setpiece = new_top
+		hover_changed.emit(top_hovered_setpiece)
+	
+	hovered_setpieces = new_hovered