def get_bbox_center(bbox):
    """Return the center of the bounding box
    :param bbox: the player bounding box [top_left x, top_left y, bottom_left x, bottom_left y]
    :return: the center x, y of the bounding box
    #>>> get_bbox_center([23,12,35,20])
    #(29.0, 16.0)
    """
    return ((bbox[2]-bbox[0])/2+bbox[0], (bbox[3]-bbox[1])/2+bbox[1])