bool MainWindow::able_to_move(Model &new_model) {
    for (int i = 0; i < manager.model_list.size(); i++) {
        if (i != ui->modelList->currentRow()) {
            for (const Polygon& new_pol: new_model.polygons) {
            	for (const Polygon& pol: manager.model_list[i].polygons) {
					bool check = pol.infront(new_model.get_center());
                	for (const Point& new_p: new_pol.points) {
                    	if (new_pol.infront(new_p) != check) {
                        	return false;
                    	}
                    }
                }
            }
        }
    }
    return true;
}