level = floor(tab_panel_pos.y / level_height) * level_height; //starting level
candidate_pos.x = (!tab_backward) ? vid_conwidth : 0;
start_posX = tab_panel_pos.x;
level = floor(tab_panel_pos.y / level_height) * level_height; //starting level
candidate_pos.x = (!tab_backward) ? vid_conwidth : 0;
start_posX = tab_panel_pos.x;