“tied-up” Prince William.The Prince of Wales spent Thursday morning opening a new youth center in London as chatter about his wife Kate Middleton’s whereabouts and recent photo-editing scandal continue to grab headlines.William, 41, was seen beaming from ear to ear as he played ball games with kids at the WEST youth center in Hammersmith, which stands for “Where Everyone Sticks Together.”The facility is run by OnSide, an organization that both the Prince and Princess of Wales, 42, have previously shown support for.“The Prince joined a gathering of young people who have come together to celebrate the launch of the new Youth Zone with a plaque unveiling,” Kensington Palace told The Post in a statement.William met with students from the local elementary school as well as pupils from the facility’s Young People’s Development Group.The heir to the throne was seen engaging in friendly competitiveness in a game of netball and basketball in the facility’s brand-new sports hall and fitness suite.The father of three was also seen walking around the building and checking out the new fully-equipped kitchen, provided to students to encourage learning cooking skills.William was shown around by Kevin McGrath, Deputy Lieutenant for the London Borough of Hammersmith and Fulham.