#  ***** BEGIN GPL LICENSE BLOCK *****
#
#   Copyright (C) 2024 Ilia Kurochkin <brothermechanic@yandex.com>
#
#   Created by Ilia Kurochkin (brothermechanic)
#   contact:    brothermechanic@yandex.com
#
#   This is free software;
#   you can redistribute it and/or modify
#   it under the terms of the GNU General Public License
#   as published by the Free Software Foundation; either version 3
#   of the License, or (at your option) any later version.
#
#   This program is distributed in the hope that it will be useful,
#   but WITHOUT ANY WARRANTY; without even the implied warranty of
#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#   GNU General Public License for more details.
#
#   You should have received a copy of the GNU General Public License
#   along with this program; if not, see <https://www.gnu.org/licenses/>.
#
#  ***** END GPL LICENSE BLOCK *****
#
# coding: utf-8
'''
DESCRIPTION.
Blender object relations functions.
'''

__version__ = '0.1'

import bpy


def parenting(parent, child):
    ''' Parenting child object to parent object. '''
    child.parent = parent
    child.matrix_parent_inverse = parent.matrix_world.inverted()
    return child


def unparenting(child):
    ''' Unarenting child object from parent object. '''
    # update database
    bpy.context.view_layer.update()

    world_matrix = child.matrix_world.copy()
    child.parent = None
    child.matrix_world = world_matrix
    return child